:root {
  --app-bg: #f6f7fb;
  --app-text: #1f2937;
  --app-muted: #64748b;
  --app-line: #e2e8f0;
  --app-card: #ffffff;
  --app-primary: #2563eb;
  --app-primary-dark: #1d4ed8;
  --app-success: #16a34a;
  --app-mostly-understood: #f59e0b;
  --app-move-on: #db2777;
  --app-review: var(--app-mostly-understood);
}

body {
  background:
    linear-gradient(180deg, #eef4ff 0, var(--app-bg) 260px),
    var(--app-bg);
  color: var(--app-text);
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.navbar-brand {
  color: var(--app-text);
}

.brand-area {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.app-brand-operator {
  color: var(--app-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.plan-badge {
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.22rem 0.55rem;
  white-space: nowrap;
}

.plan-badge.is-free {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  color: #475569;
}

.plan-badge.is-paid {
  background: #fef3c7;
  border: 1px solid #fbbf24;
  color: #92400e;
}

.nav-plan-badge {
  display: none;
}

.nav-container,
.nav-actions,
.app-menu {
  align-items: center;
  display: flex;
  gap: 0.75rem;
}

.nav-container {
  justify-content: space-between;
}

.nav-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.app-menu {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  gap: 0.15rem;
  padding: 0.2rem;
}

.menu-link {
  border-radius: 0.35rem;
  color: var(--app-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.4rem 0.65rem;
  white-space: nowrap;
}

.menu-link:hover {
  background: #eff6ff;
  color: var(--app-primary);
  text-decoration: none;
}

.menu-link.is-active {
  background: #ffffff;
  color: var(--app-primary);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.menu-link.has-unseen-badges {
  background: #eff6ff;
  color: var(--app-primary-dark);
  box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.18);
}

.account-message-link.has-unseen-badges {
  align-items: center;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18), 0 10px 22px rgba(37, 99, 235, 0.18);
  display: inline-flex;
  gap: 0.4rem;
}

.menu-new-dot {
  background: #f59e0b;
  border-radius: 999px;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
  display: inline-block;
  height: 0.48rem;
  width: 0.48rem;
}

.btn,
.form-control,
.form-check-input {
  border-radius: 0.5rem;
}

.btn-primary {
  background: var(--app-primary);
  border-color: var(--app-primary);
}

.btn-primary:hover {
  background: var(--app-primary-dark);
  border-color: var(--app-primary-dark);
}

.dashboard-header,
.progress-hero,
.stats-grid,
.dashboard-layout {
  display: grid;
  gap: 1rem;
}

.dashboard-header {
  align-items: end;
  grid-template-columns: 1fr auto;
}

.dashboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
}

.notification-modal {
  align-items: center;
  bottom: 0;
  display: flex;
  justify-content: center;
  left: 0;
  padding: 1.5rem;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 1050;
}

.notification-modal[hidden] {
  display: none;
}

.notification-backdrop {
  background: rgba(15, 23, 42, 0.45);
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.notification-window {
  align-items: start;
  background: #ffffff;
  border: 1px solid #bfdbfe;
  border-left: 0.35rem solid var(--app-primary);
  border-radius: 0.5rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
  max-width: 520px;
  padding: 1.4rem;
  position: relative;
  width: min(100%, 520px);
}

.notification-heading-line,
.notification-window h2,
.notification-window p,
.notification-tip-body {
  grid-column: 1;
}

.notification-heading-line {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-right: 2.5rem;
}

.notification-modal.is-tip .notification-window,
.notification-modal.is-milestone .notification-window {
  animation: memo-card-pop 360ms cubic-bezier(0.2, 0.9, 0.25, 1.15);
  aspect-ratio: 1130 / 1460;
  background: url("../img/learning-memo-card.5852a564ef29.png") center / contain no-repeat;
  border: 0;
  border-radius: 1.6rem;
  box-sizing: border-box;
  box-shadow: 0 26px 70px rgba(85, 42, 145, 0.32);
  display: block;
  max-height: min(88vh, 760px);
  max-width: min(92vw, 590px, calc(min(88vh, 760px) * 1130 / 1460));
  padding: 0;
  position: relative;
  width: min(92vw, 590px, calc(min(88vh, 760px) * 1130 / 1460));
}

@keyframes memo-card-pop {
  from {
    opacity: 0;
    transform: translateY(0.9rem) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.notification-modal.is-tip .notification-close,
.notification-modal.is-milestone .notification-close {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(168, 121, 224, 0.45);
  color: #8b5bc7;
  position: absolute;
  right: 6.4%;
  top: 4.7%;
  z-index: 2;
}

.notification-modal.is-tip .notification-window .eyebrow,
.notification-modal.is-milestone .notification-window .eyebrow {
  color: #ffffff;
  display: none;
  font-size: clamp(0.84rem, 2.3vw, 1.28rem);
  font-weight: 900;
  line-height: 1;
  text-align: center;
  text-shadow: 0 1px 2px rgba(80, 39, 125, 0.36);
  transform: translateY(0.18em);
}

.notification-modal.is-tip .notification-window h2,
.notification-modal.is-milestone .notification-window h2 {
  display: none;
}

.notification-tip-body {
  display: none;
}

.notification-modal.is-tip .notification-tip-body,
.notification-modal.is-milestone .notification-tip-body {
  background: transparent;
  border: 0;
  border-radius: 1rem;
  align-content: center;
  box-sizing: border-box;
  color: #1f2937;
  display: block;
  font-weight: 900;
  height: 34.4%;
  left: 12.4%;
  line-height: 1.45;
  margin: 0;
  min-width: 0;
  overflow: visible;
  overflow-wrap: anywhere;
  padding: 0.15rem 2.6%;
  position: absolute;
  right: 13.8%;
  text-align: center;
  top: 16.4%;
  width: auto;
  word-break: normal;
}

.notification-modal.is-tip .notification-tip-body {
  font-size: clamp(0.78rem, 4.2vw, 1.7rem);
  white-space: normal;
}

.notification-modal.is-tip .notification-window p,
.notification-modal.is-milestone .notification-window p {
  display: none;
}

.notification-modal.is-tip .notification-heading-line,
.notification-modal.is-milestone .notification-heading-line {
  align-items: center;
  display: flex;
  height: 8.5%;
  justify-content: center;
  left: 24%;
  padding: 0 0.9rem;
  position: absolute;
  top: 6.15%;
  width: 52%;
}

.notification-modal.is-tip .notification-number,
.notification-modal.is-milestone .notification-number {
  background: transparent;
  border: 0;
  box-shadow: none;
  color: #ffffff;
  font-size: clamp(1rem, 2.75vw, 1.5rem);
  font-weight: 900;
  line-height: 1;
  position: static;
  text-align: center;
  text-shadow: 0 1px 2px rgba(80, 39, 125, 0.36);
  transform: translateY(0);
}

.notification-modal.is-milestone .notification-heading-line {
  height: 10%;
  left: 17.5%;
  right: 16.2%;
  top: 10.2%;
  width: auto;
}

.notification-modal.is-milestone .notification-number {
  color: #8b5bc7;
  box-sizing: border-box;
  font-size: clamp(0.72rem, min(3.1vw, 4.6vh), 2rem);
  line-height: 1.15;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 0 0.35rem;
  text-shadow: none;
  white-space: normal;
  word-break: normal;
}

.notification-modal.is-milestone .notification-window {
  aspect-ratio: 1448 / 1086;
  background-image: url("../img/milestone-message-card.908be3867841.png");
  max-height: min(88vh, 690px);
  max-width: min(94vw, 920px, calc(min(88vh, 690px) * 1448 / 1086));
  width: min(94vw, 920px, calc(min(88vh, 690px) * 1448 / 1086));
}

.notification-modal.is-milestone .notification-close {
  right: 4.1%;
  top: 4.6%;
}

.notification-modal.is-milestone .notification-tip-body {
  height: 52.8%;
  left: 39.5%;
  padding: 0.3rem 3.6%;
  right: 8%;
  top: 28.8%;
  white-space: normal;
  width: auto;
}

.notification-number {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: var(--app-muted);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.2rem 0.55rem;
  white-space: nowrap;
}

.notification-close {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--app-muted);
  display: inline-flex;
  font-size: 1.2rem;
  height: 1.8rem;
  justify-content: center;
  line-height: 1;
  padding: 0;
  width: 1.8rem;
  grid-column: 2;
  grid-row: 1;
}

.notification-close:hover {
  background: #eff6ff;
  color: var(--app-primary);
}

.has-modal {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .notification-modal.is-tip .notification-window,
  .notification-modal.is-milestone .notification-window {
    animation: none;
  }
}

.progress-hero {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  padding: 1.5rem;
}

.progress-number {
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  line-height: 0.95;
}

.progress,
.stacked-progress {
  background: #e8eef8;
  height: 0.85rem;
}

.stacked-progress {
  border-radius: 0.5rem;
  display: flex;
  overflow: hidden;
}

.progress-segment {
  height: 100%;
}

.progress-understood {
  background: var(--app-primary);
}

.progress-mostly-understood {
  background: var(--app-mostly-understood);
}

.progress-move-on {
  background: var(--app-move-on);
}

.progress-legend {
  color: var(--app-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.progress-legend span {
  align-items: center;
  display: inline-flex;
  gap: 0.35rem;
}

.legend-dot {
  border-radius: 999px;
  display: inline-block;
  height: 0.65rem;
  width: 0.65rem;
}

.understood-dot {
  background: var(--app-primary);
}

.mostly-understood-dot {
  background: var(--app-mostly-understood);
}

.move-on-dot {
  background: var(--app-move-on);
}

.unlearned-dot {
  background: #cbd5e1;
}

.next-panel,
.preview-panel {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 1rem;
}

.eyebrow {
  color: var(--app-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 1rem;
}

.stat-card span {
  color: var(--app-muted);
  display: block;
  font-size: 0.9rem;
}

.stat-card strong {
  display: block;
  font-size: 2rem;
  line-height: 1.1;
  margin-top: 0.25rem;
}

.mostly-understood-stat strong {
  color: #b45309;
}

.move-on-stat strong {
  color: #be185d;
}

.dashboard-layout {
  align-items: start;
  grid-template-columns: 260px minmax(0, 1fr);
}

.chapter-nav {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 1rem;
  position: sticky;
  top: 1rem;
}

.chapter-link {
  align-items: center;
  border-radius: 0.5rem;
  color: var(--app-text);
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.65rem 0.5rem;
}

.chapter-link:hover {
  background: #eff6ff;
  text-decoration: none;
}

.chapter-link span {
  font-size: 0.9rem;
}

.chapter-link strong,
.chapter-percent {
  color: var(--app-primary);
  white-space: nowrap;
}

.lesson-stack {
  display: grid;
  gap: 1rem;
}

.chapter-section {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  overflow: hidden;
}

.chapter-heading {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem 1rem 0.75rem;
}

.chapter-progress {
  border-radius: 0;
  height: 0.35rem;
}

.lesson-list {
  display: grid;
}

.lesson-row {
  align-items: center;
  border-top: 1px solid var(--app-line);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto;
  min-height: 3.5rem;
  padding: 0.8rem 1rem;
}

.lesson-row:hover {
  background: #f8fafc;
}

.lesson-row.status-understood .lesson-main {
  opacity: 0.72;
  text-decoration: line-through;
}

.lesson-row.status-mostly_understood {
  background: #fffbeb;
}

.lesson-row.status-mostly_understood:hover {
  background: #fef3c7;
}

.lesson-row.status-move_on {
  background: #fdf2f8;
}

.lesson-row.status-move_on:hover {
  background: #fce7f3;
}

.lesson-main {
  min-width: 0;
}

.status-options {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(5.8rem, 1fr));
  overflow: hidden;
}

.status-options label {
  margin: 0;
}

.status-options input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.status-options span {
  color: var(--app-muted);
  cursor: pointer;
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  min-height: 2.2rem;
  padding: 0.45rem 0.65rem;
  text-align: center;
  white-space: nowrap;
}

.status-options label + label span {
  border-left: 1px solid #e2e8f0;
}

.status-options input:checked + span {
  background: #ffffff;
  color: var(--app-text);
}

.status-options input[value="understood"]:checked + span {
  background: #dbeafe;
  color: #1d4ed8;
}

.status-options input[value="mostly_understood"]:checked + span {
  background: #fef3c7;
  color: #92400e;
}

.status-options input[value="move_on"]:checked + span {
  background: #fce7f3;
  color: #be185d;
}

.status-options input[value="unlearned"]:checked + span {
  background: #e2e8f0;
  color: #0f172a;
  box-shadow: inset 0 0 0 2px #94a3b8;
}

.status-options input:focus-visible + span {
  outline: 2px solid var(--app-primary);
  outline-offset: -2px;
}

.status-select-wrap {
  display: none;
}

.status-select-mobile {
  background-color: #ffffff;
  border-color: var(--app-line);
  color: var(--app-text);
  font-weight: 700;
  min-height: 2.75rem;
}

.review-note-panel {
  display: none;
  grid-column: 1 / -1;
}

.lesson-row.is-note-open .review-note-panel {
  display: block;
}

.review-note {
  background: #fffdf5;
  border-color: #fde68a;
  resize: vertical;
}

.save-state {
  color: var(--app-muted);
  font-size: 0.8rem;
  min-height: 1.2rem;
  padding-top: 0.25rem;
}

.home-panel {
  min-height: calc(100vh - 160px);
}

.home-intro-action {
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(147, 197, 253, 0.95);
  bottom: clamp(1.25rem, 2.4vw, 2.2rem);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.12);
  color: #1d4ed8;
  font-weight: 800;
  min-width: 10.5rem;
  position: absolute;
  right: max(3rem, calc((100% - 1460px) / 2 + 3rem));
}

.home-intro-action:hover {
  background: rgba(239, 246, 255, 0.92);
  border-color: #60a5fa;
  color: #1e40af;
  text-decoration: none;
}

.home-app-intro {
  margin: 0 auto 2.8rem;
  max-width: 980px;
}

.home-body-grid {
  display: grid;
  gap: 1.25rem;
}

.home-body-card {
  --home-card-padding-x: clamp(1.25rem, 3.5vw, 3rem);
  --home-card-padding-y: clamp(1.25rem, 3.5vw, 3rem);
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 0.5rem;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  padding: var(--home-card-padding-y) var(--home-card-padding-x);
}

.home-app-intro-eyebrow {
  color: #2563eb;
  font-size: 0.94rem;
  font-weight: 900;
  margin: 0 0 0.65rem;
}

.home-body-card h2 {
  border-left: 0.36rem solid #2563eb;
  color: #0f172a;
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: 900;
  line-height: 1.45;
  margin: 0 0 1rem;
  padding-left: 0.85rem;
}

.home-body-image {
  margin: 0 0 1.25rem;
}

.home-body-image img {
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  display: block;
  height: auto;
  width: 100%;
}

.home-body-card p {
  color: #475569;
  font-size: 1.08rem;
  line-height: 1.9;
  margin: 0;
}

.home-body-card p + p {
  margin-top: 0.9rem;
}

.home-conversion-card {
  background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
  border-color: #bfdbfe;
}

.home-app-title {
  color: #0f172a;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 0.8rem;
}

.home-app-purpose {
  color: #334155 !important;
  font-weight: 700;
  margin-bottom: 0.7rem !important;
}

.home-privacy-link {
  font-size: 0.95rem !important;
  margin-bottom: 1.4rem !important;
}

.home-conversion-visual {
  border: 1px solid #bfdbfe;
  border-radius: 0.45rem;
  margin: 0 0 1.6rem;
  overflow: hidden;
}

.home-conversion-visual img {
  display: block;
  height: auto;
  width: 100%;
}

.home-conversion-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.home-conversion-actions .btn {
  font-weight: 900;
  min-width: min(100%, 14rem);
}

.home-assurance-text {
  color: #64748b !important;
  font-size: 0.98rem !important;
  font-weight: 800;
  margin-top: 0.85rem !important;
}

.home-card-image {
  margin: 1.15rem 0;
}

.home-card-image img {
  border: 1px solid #e2e8f0;
  border-radius: 0.45rem;
  display: block;
  height: auto;
  margin: 0 auto;
  max-width: 100%;
  width: 100%;
}

.home-mobile-screens {
  display: grid;
  gap: clamp(0.35rem, 1.4vw, 0.9rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.25rem;
}

.home-mobile-screens img {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
  display: block;
  height: auto;
  min-width: 0;
  width: 100%;
}

.home-card-list {
  color: #475569;
  font-size: 1.08rem;
  line-height: 1.9;
  margin: 0.85rem 0 1rem;
  padding-left: 1.45rem;
}

.home-problem-grid,
.home-value-grid {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0 1.2rem;
}

.home-problem-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.home-problem-grid div,
.home-value-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.55rem;
}

.home-problem-grid div {
  color: #334155;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.65;
  padding: 0.8rem 0.95rem 0.8rem 2.35rem;
  position: relative;
}

.home-problem-grid div::before {
  background: #dbeafe;
  border-radius: 999px;
  color: #1d4ed8;
  content: "!";
  font-size: 0.85rem;
  font-weight: 900;
  height: 1.25rem;
  left: 0.85rem;
  line-height: 1.25rem;
  position: absolute;
  text-align: center;
  top: 0.95rem;
  width: 1.25rem;
}

.home-value-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.home-value-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.home-value-card {
  display: grid;
  gap: 0.7rem;
  padding: 1rem;
}

.home-value-card h3 {
  color: #0f172a;
  font-size: 1.08rem;
  font-weight: 900;
  line-height: 1.5;
  margin: 0;
}

.home-value-card p {
  font-size: 1rem;
  line-height: 1.8;
}

.home-value-card .home-card-image {
  margin: 0.25rem 0 0;
}

.home-value-card .character-speech {
  margin-top: 0.2rem;
}

.home-plan-table-wrap {
  border: 1px solid #dbe4f0;
  border-radius: 0.6rem;
  margin-top: 1.3rem;
  overflow-x: auto;
}

.home-plan-table {
  border-collapse: collapse;
  color: #334155;
  font-size: 1rem;
  min-width: 640px;
  width: 100%;
}

.home-plan-table th,
.home-plan-table td {
  border-bottom: 1px solid #e2e8f0;
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: middle;
}

.home-plan-table thead th {
  background: #eff6ff;
  color: #1e3a8a;
  font-weight: 800;
}

.home-plan-table tbody th {
  background: #f8fafc;
  color: #0f172a;
  font-weight: 700;
  width: 38%;
}

.home-plan-table tbody tr:last-child th,
.home-plan-table tbody tr:last-child td {
  border-bottom: 0;
}

.home-plan-table td:last-child {
  color: #1d4ed8;
  font-weight: 700;
}

.home-faq-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.home-faq-list details {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.55rem;
  overflow: hidden;
}

.home-faq-list summary {
  color: #0f172a;
  cursor: pointer;
  font-size: 1.04rem;
  font-weight: 900;
  line-height: 1.6;
  list-style: none;
  padding: 0.85rem 1rem;
}

.home-faq-list summary::-webkit-details-marker {
  display: none;
}

.home-faq-list summary::before {
  color: #2563eb;
  content: "Q. ";
  font-weight: 900;
}

.home-faq-list p {
  border-top: 1px solid #e2e8f0;
  padding: 0.85rem 1rem 1rem;
}

.home-final-cta {
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 55%, #f8fafc 100%);
  border-color: #bfdbfe;
  text-align: center;
}

.home-app-marker {
  background: linear-gradient(transparent 58%, #fde68a 58%);
  color: #0f172a;
  font-weight: 800;
  padding: 0 0.08em;
}

.home-app-strong {
  color: #2563eb;
  font-weight: 900;
}

.home-feature-accordion {
  display: grid;
  gap: 0.55rem;
  margin: 0.9rem 0;
}

.home-feature-accordion details {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.45rem;
  overflow: hidden;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.home-feature-accordion details:hover {
  border-color: #93c5fd;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.1);
}

.home-feature-accordion summary {
  align-items: center;
  color: #334155;
  cursor: pointer;
  display: flex;
  font-size: 1.04rem;
  font-weight: 800;
  gap: 0.65rem;
  justify-content: flex-start;
  line-height: 1.65;
  list-style: none;
  padding: 0.7rem 0.9rem 0.7rem 0.9rem;
}

.home-feature-accordion summary::-webkit-details-marker {
  display: none;
}

.home-feature-accordion summary::before {
  background: #2563eb;
  border-radius: 999px;
  color: #ffffff;
  content: "+";
  flex: 0 0 auto;
  font-size: 0.82rem;
  font-weight: 900;
  height: 1.15rem;
  line-height: 1.12rem;
  text-align: center;
  width: 1.15rem;
}

.home-feature-accordion details[open] summary::before {
  content: "-";
}

.home-feature-accordion summary::after {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: #1d4ed8;
  content: "開く  ↓";
  flex: 0 0 auto;
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.2;
  margin-left: auto;
  padding: 0.3rem 0.62rem;
  white-space: nowrap;
}

.home-feature-accordion details[open] summary::after {
  background: #dbeafe;
  content: "閉じる ↑";
}

.home-feature-accordion-body {
  border-top: 1px solid #e2e8f0;
  padding: 0.85rem 1rem 1rem 2.7rem;
}

.home-feature-accordion-body p {
  font-size: 1.02rem;
}

.home-feature-accordion-body p + p {
  margin-top: 0.8rem;
}

.home-accordion-list {
  color: #374151;
  font-size: 1.02rem;
  line-height: 1.9;
  margin: 0.65rem 0 0.9rem;
  padding-left: 1.4rem;
}

.home-accordion-image {
  margin: 1rem 0;
}

.home-accordion-image img {
  border: 1px solid #e2e8f0;
  border-radius: 0.45rem;
  display: block;
  height: auto;
  margin: 0 auto;
  max-width: 100%;
  width: 100%;
}

.home-app-intro-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0.9rem 0;
  padding: 0;
}

.home-app-intro-list li {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.45rem;
  color: #334155;
  font-size: 1.04rem;
  font-weight: 800;
  line-height: 1.65;
  padding: 0.7rem 0.9rem 0.7rem 2.2rem;
  position: relative;
}

.home-app-intro-list li::before {
  background: #2563eb;
  border-radius: 999px;
  color: #ffffff;
  content: "✓";
  font-size: 0.72rem;
  font-weight: 900;
  height: 1.15rem;
  left: 0.85rem;
  line-height: 1.15rem;
  position: absolute;
  text-align: center;
  top: 0.85rem;
  width: 1.15rem;
}

.home-app-article-cta {
  border-top: 1px solid #e2e8f0;
  margin-top: 1.4rem;
  padding-top: 1.4rem;
  text-align: center;
}

.home-app-article-cta .btn {
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.2);
  font-weight: 900;
  min-width: min(100%, 22rem);
}

.home-hero-card {
  overflow: hidden;
}

.home-hero-lead {
  color: #0f2f63 !important;
  font-size: clamp(1.55rem, 3.2vw, 2.35rem) !important;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.5 !important;
  margin-bottom: 1rem !important;
}

.home-hero-card .home-conversion-visual {
  box-shadow: 0 18px 42px rgba(30, 64, 175, 0.12);
  margin: 1.6rem 0 1rem;
}

.home-section-intro {
  margin-bottom: 1.25rem !important;
}

.home-outcome-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.35rem;
}

.home-outcome-card {
  background: linear-gradient(160deg, #f8fbff 0%, #eff6ff 100%);
  border: 1px solid #cfe1fa;
  border-radius: 0.7rem;
  min-width: 0;
  padding: 1.15rem;
}

.home-outcome-number {
  color: #2563eb;
  display: block;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  margin-bottom: 0.55rem;
}

.home-outcome-card h3,
.home-journey-step h3,
.home-feature-copy h3,
.home-practice-copy h3,
.home-support-grid h3 {
  color: #0f172a;
  font-size: 1.08rem;
  font-weight: 900;
  line-height: 1.55;
  margin: 0 0 0.55rem;
}

.home-outcome-card p,
.home-journey-step p,
.home-support-grid p {
  font-size: 0.98rem;
  line-height: 1.75;
}

.home-journey-grid {
  counter-reset: journey;
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.3rem;
}

.home-journey-step {
  align-items: flex-start;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.7rem;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 1rem;
}

.home-journey-index {
  align-items: center;
  background: #2563eb;
  border-radius: 999px;
  color: #ffffff;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 0.9rem;
  font-weight: 900;
  height: 2.15rem;
  justify-content: center;
  width: 2.15rem;
}

.home-journey-label {
  color: #2563eb !important;
  font-size: 0.72rem !important;
  font-weight: 900;
  letter-spacing: 0.13em;
  line-height: 1.2 !important;
  margin-bottom: 0.35rem !important;
}

.home-feature-showcase,
.home-practice-layout {
  align-items: center;
  display: grid;
  gap: clamp(1.1rem, 3vw, 2rem);
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  margin-top: 1.25rem;
}

.home-feature-copy,
.home-practice-copy {
  min-width: 0;
}

.home-feature-copy > p,
.home-practice-copy > p {
  font-size: 1.02rem;
  line-height: 1.8;
}

.home-feature-tag {
  background: #dbeafe;
  border-radius: 999px;
  color: #1d4ed8;
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 900;
  margin-bottom: 0.65rem;
  padding: 0.35rem 0.72rem;
}

.home-feature-visual,
.home-practice-visual,
.home-report-preview {
  margin: 0;
}

.home-feature-visual img,
.home-practice-visual img,
.home-report-preview img {
  border: 1px solid #dbe4f0;
  border-radius: 0.65rem;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.1);
  display: block;
  height: auto;
  width: 100%;
}

.home-check-list {
  color: #334155;
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.home-check-list li {
  line-height: 1.65;
  padding-left: 1.65rem;
  position: relative;
}

.home-check-list li::before {
  align-items: center;
  background: #dbeafe;
  border-radius: 999px;
  color: #1d4ed8;
  content: "✓";
  display: inline-flex;
  font-size: 0.7rem;
  font-weight: 900;
  height: 1.15rem;
  justify-content: center;
  left: 0;
  position: absolute;
  top: 0.25rem;
  width: 1.15rem;
}

.home-practice-layout {
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
}

.home-report-preview {
  margin-top: 1rem;
}

.home-report-preview img {
  max-height: 17rem;
  object-fit: cover;
  object-position: top;
}

.home-support-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.3rem;
}

.home-support-grid section {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.65rem;
  padding: 1rem;
}

.home-plan-choice-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.3rem;
}

.home-plan-choice {
  background: #f8fafc;
  border: 1px solid #dbe4f0;
  border-radius: 0.75rem;
  padding: 1.25rem;
}

.home-plan-choice-premium {
  background: linear-gradient(155deg, #eff6ff 0%, #ffffff 100%);
  border: 2px solid #60a5fa;
}

.home-plan-label {
  color: #1d4ed8;
  font-size: 0.83rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.home-plan-price {
  color: #0f172a !important;
  font-size: 1.65rem !important;
  font-weight: 900;
  line-height: 1.35 !important;
  margin-top: 0.45rem !important;
}

.home-plan-price small {
  color: #64748b;
  font-size: 0.85rem;
}

.home-plan-note {
  color: #64748b !important;
  font-size: 0.94rem !important;
  margin-top: 1rem !important;
  text-align: center;
}

.home-developer-note {
  background: #f8fafc;
  border-style: dashed;
  box-shadow: none;
}

.home-final-actions {
  justify-content: center;
}

@media (max-width: 767.98px) {
  .home-outcome-grid,
  .home-support-grid {
    grid-template-columns: 1fr;
  }

  .home-journey-grid,
  .home-feature-showcase,
  .home-practice-layout,
  .home-plan-choice-grid {
    grid-template-columns: 1fr;
  }

  .home-feature-visual {
    grid-row: 1;
  }

  .home-support-grid {
    gap: 0.65rem;
  }
}

.character-speech {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: auto minmax(0, 1fr);
  margin: 0.2rem 0 0;
}

.character-speech-character {
  align-items: center;
  display: grid;
  gap: 0.45rem;
  justify-items: center;
}

.character-speech-character img {
  background: linear-gradient(135deg, #faf5ff 0%, #ffffff 100%);
  border: 3px solid #a855f7;
  border-radius: 999px;
  box-shadow:
    0 0 0 0.28rem rgba(168, 85, 247, 0.16),
    0 12px 28px rgba(88, 28, 135, 0.16);
  display: block;
  height: 5.4rem;
  object-fit: cover;
  width: 5.4rem;
}

.character-speech-character span {
  color: #6b21a8;
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.2;
}

.character-speech-bubble {
  background:
    radial-gradient(circle at 98% 18%, rgba(216, 180, 254, 0.3) 0 0.55rem, transparent 0.6rem),
    linear-gradient(135deg, #faf5ff 0%, #ffffff 48%, #f5f0ff 100%);
  border: 1px solid #c084fc;
  border-left: 0.5rem solid #8b5cf6;
  border-radius: 0.85rem;
  box-shadow:
    0 18px 44px rgba(126, 34, 206, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  min-height: 5.4rem;
  padding: 1.1rem 1.35rem;
  position: relative;
}

.character-speech-bubble::before {
  background: #faf5ff;
  border-bottom: 1px solid #c084fc;
  border-left: 1px solid #c084fc;
  content: "";
  height: 1rem;
  left: -0.55rem;
  position: absolute;
  top: 2.1rem;
  transform: rotate(45deg);
  width: 1rem;
}

.character-speech-bubble p {
  color: #3b0764;
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1.85;
  margin: 0;
}

.character-speech-bubble p + p {
  margin-top: 0.35rem;
}

.character-speech-media-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.05rem;
}

.character-speech-media-grid img {
  background: #ffffff;
  border: 1px solid #e9d5ff;
  border-radius: 0.55rem;
  box-shadow: 0 12px 28px rgba(88, 28, 135, 0.12);
  display: block;
  height: auto;
  width: 100%;
}

.home-feature-accordion-body .character-speech {
  margin-bottom: 1.35rem;
}

.home-body-card .character-speech {
  margin-top: 1.2rem;
  margin-bottom: 1.35rem;
}

.preview-list {
  color: var(--app-muted);
  padding-left: 1.2rem;
}

.placeholder-page {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  padding: 2rem;
}

.account-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.account-coupon-card {
  align-items: center;
  background: linear-gradient(135deg, #fff8e5 0%, #fff0c2 100%);
  border: 1px solid #f6b23c;
  border-radius: 0.625rem;
  box-shadow: 0 8px 22px rgba(180, 120, 20, 0.12);
  color: #0f172a;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 1.5rem;
}

.account-coupon-card-label {
  background: #ffffff;
  border: 1px solid #f0b429;
  border-radius: 999px;
  color: #9a5b00;
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  padding: 0.32rem 0.75rem;
}

.account-coupon-card h2 {
  font-size: 1.38rem;
  font-weight: 900;
  line-height: 1.4;
  margin: 0 0 0.5rem;
}

.account-coupon-card p {
  color: #4b5563;
  font-weight: 700;
  line-height: 1.7;
  margin: 0;
}

.account-coupon-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.account-coupon-card-tags span {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(245, 158, 11, 0.28);
  border-radius: 999px;
  color: #374151;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.35;
  padding: 0.32rem 0.65rem;
}

.account-coupon-card-action {
  background: #ea580c;
  border-radius: 0.5rem;
  color: #ffffff;
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  justify-self: end;
  min-width: 11.25rem;
  padding: 0.8rem 1.15rem;
  text-decoration: none;
  white-space: nowrap;
}

.account-coupon-card-action:hover {
  background: #c2410c;
  color: #ffffff;
}

.account-coupon-card-action:focus-visible {
  outline: 3px solid rgba(234, 88, 12, 0.35);
  outline-offset: 3px;
}

.account-card {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  padding: 1.25rem;
}

.in-app-message-list {
  display: grid;
  gap: 0.75rem;
}

.in-app-message-item {
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  color: inherit;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 1rem;
  text-decoration: none;
}

.in-app-message-item:hover {
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.in-app-message-item.is-unread {
  background: #eff6ff;
  border-color: rgba(37, 99, 235, 0.28);
}

.in-app-message-title-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.in-app-message-title-row strong {
  color: var(--app-text);
  font-size: 1rem;
}

.in-app-message-item p {
  color: var(--app-muted);
  margin: 0.35rem 0 0;
}

.in-app-message-item time {
  color: var(--app-muted);
  font-size: 0.86rem;
  font-weight: 700;
  white-space: nowrap;
}

.in-app-message-body {
  color: #1f2937;
  font-size: 1rem;
  line-height: 1.9;
}

.learning-badge-card .eyebrow {
  color: #475569;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
}

.dashboard-header .badge-page-intro {
  max-width: 58rem;
  color: #334155;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.8;
}

.learning-badge-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12.5rem), 1fr));
}

@media (min-width: 1200px) {
  .learning-badge-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .in-app-message-item {
    grid-template-columns: 1fr;
  }

  .in-app-message-item time {
    white-space: normal;
  }
}

.badge-category-section {
  margin-top: 1.65rem;
}

.badge-category-section + .badge-category-section {
  margin-top: 2.15rem;
}

.badge-category-heading {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.95rem;
  position: relative;
}

.badge-category-heading::after {
  background: #cbd5e1;
  content: "";
  flex: 1 1 auto;
  height: 1px;
  margin-left: 0.8rem;
}

.badge-category-heading .eyebrow {
  background: #ffffff;
  border: 1px solid #bfdbfe;
  border-left: 0.35rem solid #2563eb;
  border-radius: 0.5rem;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.1);
  color: #0f172a;
  display: inline-flex;
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.2;
  padding: 0.5rem 0.8rem;
}

.learning-badge-card {
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 18rem;
  padding: 1.15rem;
}

.learning-badge-card.is-locked {
  background: #f8fafc;
}

.learning-badge-image-slot {
  align-items: center;
  aspect-ratio: 1 / 1;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  border-radius: 0.5rem;
  color: #475569;
  display: flex;
  flex: 0 0 auto;
  font-size: 0.8rem;
  font-weight: 900;
  justify-content: center;
  letter-spacing: 0;
  overflow: hidden;
  padding: 0.85rem;
  position: relative;
  text-align: center;
  width: 100%;
}

.learning-badge-card.is-locked .learning-badge-image-slot {
  background: #e2e8f0;
  border-color: #cbd5e1;
  color: #64748b;
}

.learning-badge-image-slot img {
  display: block;
  height: 100%;
  object-fit: contain;
  width: 100%;
}

.learning-badge-card.is-locked .learning-badge-image-slot img {
  opacity: 0.92;
}

.learning-badge-lock-label {
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 0.45rem;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.22);
  color: #ffffff;
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  inset: 50% 0.65rem auto;
  line-height: 1.42;
  overflow-wrap: anywhere;
  padding: 0.55rem 0.65rem;
  position: absolute;
  text-shadow: 0 1px 2px rgba(15, 23, 42, 0.4);
  transform: translateY(-50%);
}

.learning-badge-card h2 {
  color: #0f172a;
  font-size: 1.14rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 0.55rem !important;
  margin-top: 0.15rem !important;
  overflow-wrap: anywhere;
  padding-left: 0.7rem;
  position: relative;
}

.learning-badge-card h2::before {
  background: #f59e0b;
  border-radius: 999px;
  bottom: 0.18rem;
  content: "";
  left: 0;
  position: absolute;
  top: 0.18rem;
  width: 0.22rem;
}

.learning-badge-condition {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.4rem;
  color: #475569;
  display: inline-flex;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.3rem 0.5rem;
}

.learning-badge-card time {
  color: #475569;
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.3;
  padding-left: 0.7rem;
}

.badge-empty-state {
  text-align: left;
}

.manage-badge-thumb {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.4rem;
  display: block;
  height: 3.5rem;
  object-fit: contain;
  width: 3.5rem;
}

@media (max-width: 575.98px) {
  .learning-badge-image-slot {
    width: 100%;
  }
}

.admin-preview-bar {
  align-items: center;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 0.5rem;
  box-shadow: 0 10px 24px rgba(154, 52, 18, 0.08);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem 1.25rem;
}

.admin-preview-bar .eyebrow {
  color: #9a3412;
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: 0.25rem;
}

.admin-preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.account-card > .eyebrow,
.upgrade-panel > div:first-child .eyebrow {
  background: #f8fafc;
  border-bottom: 1px solid var(--app-line);
  border-radius: 0.35rem 0.35rem 0 0;
  color: #0f172a;
  display: block;
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.35;
  margin: -1.25rem -1.25rem 1.15rem;
  padding: 0.9rem 1.25rem;
}

.account-danger-card > .eyebrow {
  background: #fff7f7;
  border-bottom-color: #fecaca;
  color: #b91c1c;
}

.plan-card > .eyebrow {
  color: #475569;
  display: block;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0;
  margin-bottom: 0.6rem;
}

.account-card > h2,
.upgrade-panel h2,
.plan-card h3 {
  color: #0f172a;
}

.account-info-list {
  display: grid;
  gap: 0.85rem;
}

.account-info-list div {
  border-bottom: 1px solid var(--app-line);
  padding-bottom: 0.85rem;
}

.account-info-list div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.account-info-list dt {
  color: var(--app-muted);
  font-size: 0.85rem;
  margin-bottom: 0.2rem;
}

.account-info-list dd {
  font-weight: 800;
  margin: 0;
}

.account-placeholder-list {
  display: grid;
  gap: 0.6rem;
}

.account-placeholder-list p {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  color: var(--app-muted);
  margin: 0;
  padding: 0.75rem;
}

.account-message-stack {
  display: grid;
  gap: 0.75rem;
}

.account-form {
  display: grid;
  gap: 1rem;
}

.account-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.account-danger-card {
  border-color: #fecaca;
}

.account-narrow-panel {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  max-width: 720px;
  padding: 1.5rem;
}

.account-danger-panel {
  border-color: #fecaca;
}

.account-delete-list {
  color: var(--app-muted);
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-left: 1.15rem;
}

.analytics-hero,
.analytics-hero-stats,
.analytics-chart-grid,
.analytics-grid,
.analytics-list,
.analytics-mini-stack,
.analytics-rank-list,
.analytics-stat-row {
  display: grid;
  gap: 1rem;
}

.analytics-access-wrap {
  position: relative;
}

.analytics-access-wrap.is-locked > :not(.analytics-lock-panel) {
  filter: blur(9px);
  pointer-events: none;
  user-select: none;
}

.analytics-access-wrap.is-locked::after {
  background:
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.72) 0,
      rgba(255, 255, 255, 0.72) 8px,
      rgba(226, 232, 240, 0.72) 8px,
      rgba(226, 232, 240, 0.72) 16px
    );
  border-radius: 0.5rem;
  bottom: 0;
  content: "";
  left: 0;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 0;
  z-index: 2;
}

.analytics-lock-panel {
  background: #ffffff;
  border: 1px solid #bfdbfe;
  border-left: 0.35rem solid var(--app-primary);
  border-radius: 0.5rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22);
  left: 50%;
  max-width: 560px;
  padding: 1.4rem;
  position: absolute;
  top: 4rem;
  transform: translateX(-50%);
  width: min(92%, 560px);
  z-index: 3;
}

.analytics-hero {
  align-items: stretch;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  padding: 1.5rem;
}

.analytics-hero-stats {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.analytics-chart-grid,
.analytics-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.analytics-chart-card {
  align-items: center;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: auto minmax(0, 1fr);
}

.analytics-donut {
  --value: 0;
  --understood: 0;
  --mostly: 0;
  --move-on: 0;
  --correct: 0;
  --incorrect: 0;
  align-items: center;
  aspect-ratio: 1;
  background:
    radial-gradient(circle at center, #ffffff 0 58%, transparent 59%),
    conic-gradient(
      var(--app-primary) calc(var(--value) * 1%),
      #e2e8f0 0
    );
  border-radius: 999px;
  display: inline-flex;
  justify-content: center;
  width: 7rem;
}

.analytics-donut.is-progress {
  background:
    radial-gradient(circle at center, #ffffff 0 58%, transparent 59%),
    conic-gradient(
      var(--app-primary) 0 calc(var(--understood) * 1%),
      var(--app-mostly-understood) calc(var(--understood) * 1%) calc((var(--understood) + var(--mostly)) * 1%),
      var(--app-move-on) calc((var(--understood) + var(--mostly)) * 1%) calc((var(--understood) + var(--mostly) + var(--move-on)) * 1%),
      #cbd5e1 0
    );
}

.analytics-donut.is-answer {
  background:
    radial-gradient(circle at center, #ffffff 0 58%, transparent 59%),
    conic-gradient(
      var(--app-success) 0 calc(var(--correct) * 1%),
      #f97316 calc(var(--correct) * 1%) calc((var(--correct) + var(--incorrect)) * 1%),
      #cbd5e1 0
    );
}

.analytics-donut span {
  color: var(--app-text);
  font-size: 1.35rem;
  font-weight: 900;
}

.analytics-chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.85rem;
}

.analytics-chart-legend span {
  align-items: center;
  color: var(--app-muted);
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 700;
  gap: 0.35rem;
}

.analytics-chart-legend i {
  border-radius: 999px;
  display: inline-block;
  height: 0.65rem;
  width: 0.65rem;
}

.analytics-chart-legend .correct-dot {
  background: var(--app-success);
}

.analytics-chart-legend .incorrect-dot {
  background: #f97316;
}

.analytics-chart-legend .practice-dot {
  background: #f97316;
}

.analytics-chart-legend .unanswered-dot {
  background: #cbd5e1;
}

.analytics-activity-chart {
  align-items: stretch;
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.analytics-day-card {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.45rem;
  justify-items: center;
  min-height: 7.5rem;
  padding: 0.7rem 0.45rem;
}

.analytics-day-card strong {
  color: var(--app-text);
  font-size: 0.95rem;
  line-height: 1;
}

.analytics-day-card span {
  color: var(--app-muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.analytics-day-card.is-active {
  background: #ffffff;
  border-color: #bfdbfe;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.1);
}

.analytics-day-marks {
  display: grid;
  gap: 0.35rem;
}

.analytics-day-marks i {
  background: #e2e8f0;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  display: block;
  height: 0.95rem;
  width: 0.95rem;
}

.analytics-day-marks .login-mark.is-on {
  background: var(--app-primary);
  border-color: var(--app-primary);
}

.analytics-day-marks .lesson-mark.is-on {
  background: var(--app-success);
  border-color: var(--app-success);
}

.analytics-day-marks .practice-mark.is-on {
  background: #f97316;
  border-color: #f97316;
}

.analytics-mini-stack {
  gap: 0.55rem;
}

.analytics-mini-stack p,
.analytics-list article,
.analytics-rank-list p,
.analytics-stat-row p {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  margin: 0;
  padding: 0.75rem;
}

.analytics-mini-stack p strong,
.analytics-mini-stack p span,
.analytics-list article strong,
.analytics-list article span {
  display: block;
}

.analytics-mini-stack p span,
.analytics-list article span,
.analytics-rank-list p em {
  color: var(--app-muted);
  font-size: 0.86rem;
  font-style: normal;
  margin-top: 0.2rem;
}

.analytics-list {
  gap: 0.65rem;
}

.analytics-list article {
  align-items: start;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.analytics-rank-list {
  gap: 0.65rem;
}

.analytics-rank-list p {
  align-items: start;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
}

.analytics-rank-list p strong {
  color: var(--app-primary);
  font-size: 1.2rem;
  line-height: 1.2;
}

.analytics-rank-list p span {
  font-weight: 800;
}

.analytics-stat-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.analytics-stat-row p {
  color: var(--app-muted);
}

.analytics-stat-row strong {
  color: var(--app-text);
}

.app-footer {
  background: #ffffff;
  border-top: 1px solid var(--app-line);
  color: var(--app-muted);
  margin-top: 2rem;
  padding: 1.25rem 0;
}

.app-footer-inner {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  justify-content: space-between;
}

.app-footer p {
  font-size: 0.9rem;
  margin: 0;
}

.app-footer-brand {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
}

.app-footer-name {
  color: var(--app-text);
  font-weight: 800;
}

.app-footer-operator {
  color: var(--app-muted);
  font-size: 0.82rem;
}

.app-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
}

.app-footer a {
  color: var(--app-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.app-footer a:hover {
  color: var(--app-primary);
  text-decoration: underline;
}

.legal-page {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 1.35rem;
  margin: 0 auto;
  max-width: 860px;
  padding: 2rem;
}

.legal-page header {
  border-bottom: 1px solid var(--app-line);
  padding-bottom: 1rem;
}

.legal-page h1 {
  color: var(--app-text);
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0.35rem 0 0.75rem;
}

.legal-page h2 {
  color: var(--app-text);
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.legal-page p,
.legal-page li,
.legal-definition-list dd {
  line-height: 1.8;
}

.legal-page ul {
  margin-bottom: 0;
  padding-left: 1.25rem;
}

.legal-definition-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.legal-definition-list div {
  border-top: 1px solid var(--app-line);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 13rem minmax(0, 1fr);
  padding: 0.9rem 0;
}

.legal-definition-list div:first-child {
  border-top: 0;
}

.legal-definition-list dt {
  color: #334155;
  font-weight: 800;
}

.legal-definition-list dd {
  margin: 0;
}

.required-badge {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  color: #1d4ed8;
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1;
  margin-left: 0.4rem;
  padding: 0.22rem 0.45rem;
  vertical-align: middle;
}

.register-google-card {
  background:
    linear-gradient(135deg, rgba(239, 246, 255, 0.96), rgba(255, 255, 255, 0.98) 62%),
    #ffffff;
  border: 1px solid #93c5fd;
  box-shadow: 0 14px 32px rgba(37, 99, 235, 0.12) !important;
  padding: 1.35rem;
}

.register-google-heading {
  position: relative;
}

.register-recommended-badge {
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 999px;
  color: #1d4ed8;
  display: inline-flex;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 0.65rem;
  padding: 0.28rem 0.65rem;
}

.google-register-button {
  align-items: center;
  background: #ffffff;
  border: 1px solid #747775;
  border-radius: 0.5rem;
  color: #1f1f1f;
  cursor: pointer;
  display: flex;
  font-size: 1rem;
  font-weight: 700;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.7rem 1rem;
  position: relative;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.google-register-button:hover {
  background: #f8faff;
  box-shadow: 0 5px 14px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

.google-register-button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.28);
  outline-offset: 2px;
}

.google-register-icon {
  height: 1.25rem;
  left: 1rem;
  position: absolute;
  width: 1.25rem;
}

.register-google-followup {
  color: #475569;
  font-size: 0.82rem;
  margin-top: 0.75rem;
  text-align: center;
}

.register-google-card .google-auth-disclosure {
  border-top: 1px solid #dbeafe;
  margin-top: 0.85rem !important;
  padding-top: 0.85rem;
}

.register-method-divider {
  align-items: center;
  color: #64748b;
  display: flex;
  font-size: 0.82rem;
  font-weight: 700;
  gap: 0.75rem;
  margin: 1.15rem 0;
  text-align: center;
}

.register-method-divider::before,
.register-method-divider::after {
  background: #cbd5e1;
  content: "";
  flex: 1;
  height: 1px;
}

.register-email-card {
  border-color: #dbe3ee;
}

@media (max-width: 575.98px) {
  .register-google-card,
  .register-email-card {
    padding: 1.1rem;
  }

  .register-method-divider {
    gap: 0.5rem;
  }
}

.manage-content-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.manage-dashboard-grid,
.manage-dashboard-stat-grid {
  display: grid;
  gap: 1rem;
}

.manage-dashboard-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.manage-dashboard-stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card small {
  color: var(--app-muted);
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 0.15rem;
}

.manage-check-list,
.manage-mini-list {
  display: grid;
  gap: 0.6rem;
}

.manage-check-item {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.3rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 0.75rem;
}

.manage-check-item span {
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.2rem 0.55rem;
}

.manage-check-item p {
  color: var(--app-muted);
  grid-column: 1 / -1;
  margin: 0;
}

.manage-check-item.is-ok span {
  background: #dcfce7;
  color: #166534;
}

.manage-check-item.is-warning {
  border-color: #fed7aa;
}

.manage-check-item.is-warning span {
  background: #ffedd5;
  color: #9a3412;
}

.manage-mini-list p {
  align-items: start;
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  margin: 0;
  padding: 0.65rem 0.75rem;
}

.manage-mini-list p strong {
  color: var(--app-primary);
  font-size: 1.1rem;
  line-height: 1.2;
}

.manage-mini-list p span {
  color: var(--app-text);
  font-weight: 700;
}

.manage-note-list {
  display: grid;
  gap: 0.6rem;
}

.manage-note-list p {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  color: var(--app-muted);
  margin: 0;
  padding: 0.75rem;
}

.manage-import-form {
  align-items: end;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.manage-import-result {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.manage-import-result div {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 0.75rem;
}

.manage-import-result span {
  color: var(--app-muted);
  display: block;
  font-size: 0.85rem;
}

.manage-import-result strong {
  display: block;
  font-size: 1.45rem;
  line-height: 1.1;
  margin-top: 0.2rem;
}

.manage-filter-form,
.manage-question-form,
.manage-form-section {
  display: grid;
  gap: 1rem;
}

.manage-filter-form {
  align-items: end;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.7fr) auto;
}

.manage-filter-actions,
.manage-list-header,
.manage-row-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.manage-filter-actions,
.manage-row-actions {
  justify-content: flex-end;
}

.manage-list-header {
  justify-content: space-between;
}

.manage-accordion {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  overflow: hidden;
}

.manage-accordion summary {
  align-items: center;
  color: var(--app-primary);
  cursor: pointer;
  display: flex;
  font-weight: 800;
  justify-content: space-between;
  list-style: none;
  padding: 0.75rem 0.9rem;
  user-select: none;
}

.manage-accordion summary::-webkit-details-marker {
  display: none;
}

.manage-accordion summary::after {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 999px;
  color: var(--app-muted);
  content: "+";
  display: inline-flex;
  font-size: 1rem;
  font-weight: 900;
  height: 1.5rem;
  justify-content: center;
  line-height: 1;
  margin-left: 1rem;
  width: 1.5rem;
}

.manage-accordion[open] summary {
  background: #eff6ff;
}

.manage-accordion[open] summary::after {
  content: "-";
}

.manage-accordion .manage-table-wrap {
  border: 0;
  border-radius: 0;
  border-top: 1px solid var(--app-line);
}

.manage-table-wrap {
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  overflow: auto;
}

.manage-table {
  background: #ffffff;
  border-collapse: collapse;
  min-width: 920px;
  width: 100%;
}

.manage-compact-table {
  min-width: 520px;
}

.manage-table th,
.manage-table td {
  border-bottom: 1px solid var(--app-line);
  padding: 0.75rem;
  text-align: left;
  vertical-align: top;
}

.manage-table th {
  background: #f8fafc;
  color: var(--app-muted);
  font-size: 0.84rem;
  white-space: nowrap;
}

.manage-table th a {
  color: inherit;
  text-decoration: none;
}

.manage-table th a:hover,
.manage-primary-link:hover {
  text-decoration: underline;
}

.manage-table tr:last-child td {
  border-bottom: 0;
}

.manage-table td strong,
.manage-table td span {
  display: block;
}

.manage-table td span {
  color: var(--app-muted);
  font-size: 0.86rem;
  margin-top: 0.2rem;
}

.manage-primary-link {
  color: var(--app-primary);
  font-weight: 800;
  text-decoration: none;
}

.manage-table td .activity-badge {
  align-items: center;
  border: 1px solid var(--app-line);
  border-radius: 999px;
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
  margin-top: 0;
  padding: 0.3rem 0.58rem;
  white-space: nowrap;
}

.manage-table td .activity-badge.is-online {
  background: #dcfce7;
  border-color: #86efac;
  color: #166534;
}

.manage-table td .activity-badge.is-logged-in {
  background: #e0f2fe;
  border-color: #7dd3fc;
  color: #075985;
}

.manage-table td .activity-badge.is-offline {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: #64748b;
}

.manage-user-table {
  min-width: 980px;
}

.manage-lesson-progress-table {
  min-width: 1120px;
}

.manage-progress-stack {
  height: 0.45rem;
  margin-top: 0.45rem;
  max-width: 170px;
}

.manage-detail-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.manage-detail-grid > div {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 0.85rem;
}

.manage-detail-grid span {
  color: var(--app-muted);
  display: block;
  font-size: 0.84rem;
  margin-bottom: 0.25rem;
}

.manage-detail-grid strong {
  color: var(--app-text);
  display: block;
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.manage-form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.manage-form-section {
  border-bottom: 1px solid var(--app-line);
  padding-bottom: 1rem;
}

.manage-form-section:last-of-type {
  border-bottom: 0;
}

.manage-check-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.manage-check {
  align-items: center;
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: inline-flex;
  gap: 0.45rem;
  margin: 0;
  min-height: 2.5rem;
  padding: 0.5rem 0.75rem;
}

.manage-check .form-check-input {
  margin: 0;
}

.upgrade-panel {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem;
  scroll-margin-top: 1rem;
}

.coupon-page-heading {
  display: grid;
  gap: 1rem;
}

.coupon-hero {
  background: linear-gradient(135deg, #eff6ff 0%, #ecfdf5 100%);
  border: 1px solid #93c5fd;
  border-radius: 0.5rem;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.12);
  display: grid;
  gap: 0.8rem;
  padding: clamp(1.15rem, 3vw, 1.6rem);
}

.coupon-hero-label {
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 999px;
  color: #1d4ed8;
  font-size: 0.86rem;
  font-weight: 900;
  justify-self: start;
  line-height: 1.35;
  padding: 0.34rem 0.72rem;
}

.coupon-hero-title {
  color: #0f172a;
  font-size: 1.85rem;
  font-weight: 900;
  line-height: 1.35;
  margin: 0;
}

.coupon-hero-lead,
.coupon-hero-text {
  color: #334155;
  font-weight: 700;
  line-height: 1.75;
  margin: 0;
}

.coupon-hero-choices {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.coupon-hero-choice {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(147, 197, 253, 0.9);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.25rem;
  padding: 0.9rem 1rem;
}

.coupon-hero-choice-title {
  color: #0f172a;
  font-weight: 900;
  line-height: 1.45;
}

.coupon-hero-choice-text {
  color: #1d4ed8;
  font-weight: 900;
  line-height: 1.45;
}

.coupon-hero-note {
  background: rgba(255, 255, 255, 0.7);
  border-left: 0.28rem solid #22c55e;
  color: #14532d;
  font-weight: 900;
  line-height: 1.6;
  margin: 0;
  padding: 0.75rem 0.9rem;
}

.plan-compare-grid {
  align-items: stretch;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.plan-card {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.85rem;
  padding: 1.25rem;
}

.plan-card.is-basic-plan {
  background: #f8fafc;
  align-content: start;
}

.plan-card.is-coupon-green {
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
  border-color: #16a34a;
  box-shadow: inset 0 0 0 1px #86efac, 0 16px 34px rgba(22, 163, 74, 0.14);
  position: relative;
}

.plan-card.is-coupon-green::before {
  background: linear-gradient(90deg, #16a34a, #22c55e);
  border-radius: 0.5rem 0.5rem 0 0;
  content: "";
  height: 0.28rem;
  left: -1px;
  position: absolute;
  right: -1px;
  top: -1px;
}

.plan-card.is-coupon-green h3,
.plan-card.is-coupon-green .plan-price {
  color: #15803d;
}

.plan-card.is-current {
  border-color: #93c5fd;
  box-shadow: inset 0 0 0 1px #93c5fd;
}

.plan-card.is-paid-plan {
  background: linear-gradient(135deg, #eff6ff 0%, #eef2ff 100%);
  border-color: #2563eb;
  box-shadow: inset 0 0 0 1px #93c5fd, 0 16px 34px rgba(37, 99, 235, 0.18);
  position: relative;
}

.plan-card.is-paid-plan::before {
  background: linear-gradient(90deg, var(--app-primary), #0ea5e9);
  border-radius: 0.5rem 0.5rem 0 0;
  content: "";
  height: 0.28rem;
  left: -1px;
  position: absolute;
  right: -1px;
  top: -1px;
}

.plan-card.is-paid-plan h3 {
  color: #1d4ed8;
}

.plan-card-title-row {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

.plan-card-badge {
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 999px;
  color: #1d4ed8;
  font-size: 0.78rem;
  font-weight: 900;
  padding: 0.22rem 0.6rem;
  white-space: nowrap;
}

.plan-card-badge.is-basic {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #475569;
}

.coupon-audience-badge {
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(148, 163, 184, 0.42);
  border-radius: 0.5rem;
  color: #334155;
  font-size: 0.92rem;
  font-weight: 900;
  line-height: 1.45;
  margin: -0.1rem 0 0;
  padding: 0.55rem 0.7rem;
}

.plan-price {
  color: #1d4ed8;
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1.1;
  margin: 0;
}

.plan-price span {
  color: #475569;
  font-size: 0.95rem;
  font-weight: 800;
}

.plan-price.is-basic-price {
  color: #334155;
}

.plan-selling-copy {
  color: #334155;
  font-weight: 700;
  line-height: 1.6;
  margin: 0;
}

.plan-feature-list {
  color: var(--app-muted);
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.plan-feature-list li {
  align-items: start;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: auto minmax(0, 1fr);
  line-height: 1.55;
}

.plan-feature-list li::before {
  color: #64748b;
  content: "✓";
  font-weight: 900;
}

.plan-card.is-paid-plan .plan-feature-list {
  color: #1e3a8a;
}

.plan-card.is-paid-plan .plan-feature-list li::before {
  color: #2563eb;
}

.plan-card.is-coupon-green .plan-feature-list {
  color: #14532d;
}

.plan-card.is-coupon-green .plan-feature-list li::before {
  color: #16a34a;
}

.coupon-card-image {
  aspect-ratio: 1075 / 650;
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.45);
  border-radius: 0.5rem;
  margin: 0;
  overflow: hidden;
}

.coupon-card-image img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.coupon-course-link {
  font-weight: 900;
  justify-self: start;
}

.coupon-reveal-form {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  display: grid;
  gap: 0.75rem;
  margin-top: 0.25rem;
  padding-top: 1rem;
}

.coupon-reveal-form .btn {
  justify-self: start;
}

.coupon-reveal-form .btn[disabled] {
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.58;
}

.coupon-code-box {
  background: #ffffff;
  border: 1px dashed #94a3b8;
  border-radius: 0.5rem;
  display: grid;
  gap: 0.55rem;
  padding: 0.85rem;
}

.coupon-code-box[hidden] {
  display: none;
}

.coupon-code-box span {
  color: var(--app-muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.coupon-code-box strong {
  color: var(--app-text);
  font-size: 1.25rem;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.coupon-code-box .btn {
  justify-self: start;
}

.upgrade-action {
  align-items: center;
  border-top: 1px solid var(--app-line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  padding-top: 1rem;
}

.account-upgrade-heading {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-top: 0.4rem;
}

.account-upgrade-heading > div {
  display: grid;
  gap: 0.35rem;
}

.account-upgrade-heading .btn {
  flex: 0 0 auto;
}

.checkout-preview {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  margin-bottom: 1rem;
}

.checkout-summary-card,
.checkout-side-card,
.checkout-notice-card,
.checkout-action-card {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.checkout-summary-card {
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem;
}

.checkout-summary-main {
  background: linear-gradient(135deg, #eff6ff 0%, #eef2ff 100%);
  border: 1px solid #93c5fd;
  border-radius: 0.5rem;
  display: grid;
  gap: 0.65rem;
  padding: 1.25rem;
}

.checkout-badge {
  background: #dbeafe;
  border: 1px solid #93c5fd;
  border-radius: 999px;
  color: #1d4ed8;
  font-size: 0.78rem;
  font-weight: 900;
  justify-self: start;
  padding: 0.22rem 0.6rem;
}

.checkout-summary-main h2 {
  color: #1d4ed8;
  font-size: 1.45rem;
  font-weight: 900;
  margin: 0;
}

.checkout-price {
  color: #1d4ed8;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
  margin: 0;
}

.checkout-price span {
  color: #475569;
  font-size: 0.95rem;
  font-weight: 800;
  margin-left: 0.4rem;
}

.checkout-lead {
  color: #334155;
  font-weight: 800;
  line-height: 1.65;
  margin: 0;
}

.checkout-detail-list {
  display: grid;
  margin: 0;
}

.checkout-detail-list div {
  border-top: 1px solid var(--app-line);
  display: grid;
  gap: 0.35rem;
  grid-template-columns: 9rem minmax(0, 1fr);
  padding: 0.85rem 0;
}

.checkout-detail-list div:first-child {
  border-top: 0;
  padding-top: 0;
}

.checkout-detail-list div:last-child {
  padding-bottom: 0;
}

.checkout-detail-list dt {
  color: var(--app-muted);
  font-weight: 800;
}

.checkout-detail-list dd {
  color: #0f172a;
  font-weight: 800;
  margin: 0;
}

.checkout-side-card,
.checkout-notice-card,
.checkout-action-card {
  padding: 1.25rem;
}

.checkout-feature-list,
.checkout-notice-card ul {
  display: grid;
  gap: 0.65rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.checkout-feature-list li,
.checkout-notice-card li {
  color: #334155;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: auto minmax(0, 1fr);
  line-height: 1.65;
}

.checkout-feature-list li::before,
.checkout-notice-card li::before {
  color: #2563eb;
  content: "✓";
  font-weight: 900;
}

.checkout-legal-links {
  border-top: 1px solid var(--app-line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-top: 1rem;
  padding-top: 1rem;
}

.checkout-action-card {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  margin-top: 1rem;
}

.checkout-action-card .btn[disabled] {
  cursor: not-allowed;
  opacity: 0.65;
}

.practice-panel {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem;
  scroll-margin-top: 1rem;
}

.practice-state-panel {
  border-left: 0.35rem solid #cbd5e1;
}

.practice-state-panel:has(.practice-card-header) {
  border-left: 1px solid var(--app-line);
  gap: 0;
  overflow: hidden;
  padding: 0;
}

.practice-settings {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 0;
  overflow: hidden;
  padding: 0;
}

.practice-card-header {
  background: #f8fafc;
  border-bottom: 1px solid var(--app-line);
  border-left: 0.35rem solid var(--app-primary);
  display: grid;
  gap: 0.45rem;
  padding: 1.25rem 1.5rem;
}

.practice-setting-section {
  display: grid;
  gap: 0.85rem;
  padding: 1.15rem 1.5rem;
}

.practice-setting-section + .practice-setting-section {
  border-top: 1px solid var(--app-line);
}

.practice-setting-section h3 {
  color: #334155;
  font-size: 1rem;
  font-weight: 800;
  margin: 0;
}

.practice-settings-actions {
  background: #f8fafc;
  border-top: 1px solid var(--app-line);
  padding: 1rem 1.5rem;
}

.practice-settings-actions span {
  color: var(--app-muted);
  font-size: 0.95rem;
}

.practice-settings-actions strong {
  color: var(--app-text);
  font-size: 1.05rem;
}

.practice-upgrade-note {
  color: #b91c1c;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.6;
}

.practice-panel > .eyebrow,
.practice-settings .eyebrow,
.practice-status-overview .eyebrow,
.practice-question .eyebrow,
.practice-result .eyebrow,
.practice-limit-block .eyebrow {
  color: #475569;
  font-size: 0.9rem;
  font-weight: 800;
}

.practice-panel h2,
.practice-settings h2,
.practice-status-overview h3,
.practice-limit-block h2 {
  color: #0f172a;
  font-size: 1.3rem;
  line-height: 1.35;
}

.practice-panel > p,
.practice-settings p,
.practice-status-overview p,
.practice-limit-block p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.practice-mode-switch {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.practice-filter-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
}

.practice-mobile-accordion {
  display: contents;
}

.practice-mobile-accordion summary {
  display: none;
}

.practice-usage-line {
  align-items: baseline;
  color: var(--app-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
}

.practice-usage-line strong {
  color: var(--app-text);
}

.practice-limit-block {
  border-top: 1px solid var(--app-line);
  display: grid;
  gap: 0.85rem;
  padding: 1.15rem 1.5rem;
}

.practice-panel:not(:has(.practice-card-header)) .practice-limit-block {
  margin-left: -1.5rem;
  margin-right: -1.5rem;
  margin-bottom: -1.5rem;
}

.practice-limit-block .practice-actions {
  align-items: center;
  justify-content: flex-start;
}

.practice-list-header,
.practice-question-item {
  align-items: center;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.practice-list-picker-card {
  display: contents;
}

.practice-question-list {
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  overflow: hidden;
}

.practice-group-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.practice-group-card {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  color: var(--app-text);
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem;
}

.practice-group-card:hover,
.practice-group-card.is-active {
  background: #eff6ff;
  border-color: #bfdbfe;
  text-decoration: none;
}

.practice-group-card span {
  font-weight: 800;
}

.practice-group-card strong {
  color: var(--app-primary);
  font-size: 0.9rem;
}

.practice-status-overview {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 1rem;
  padding: 1rem;
}

.practice-status-legend,
.practice-status-squares {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.practice-status-legend {
  color: var(--app-muted);
  gap: 0.8rem;
}

.practice-status-legend span {
  align-items: center;
  display: inline-flex;
  gap: 0.3rem;
}

.practice-list-summary {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.practice-list-summary div {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 0.75rem;
}

.practice-list-summary span {
  color: var(--app-muted);
  display: block;
  font-size: 0.85rem;
}

.practice-list-summary strong {
  display: block;
  font-size: 1.45rem;
  line-height: 1.1;
  margin-top: 0.2rem;
}

.practice-article-status-grid {
  display: grid;
  gap: 0.5rem;
}

.practice-article-status-card {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 0.65rem 0.75rem;
}

.practice-article-status-card span {
  font-weight: 700;
  min-width: 0;
}

.status-square {
  align-items: center;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 0.35rem;
  color: var(--app-text);
  display: inline-flex;
  font-size: 0.86rem;
  font-style: normal;
  font-weight: 800;
  height: 2rem;
  justify-content: center;
  line-height: 1;
  min-width: 2rem;
  width: 2rem;
}

.status-square-legend {
  font-size: 0;
  height: 1.25rem;
  min-width: 1.25rem;
  width: 1.25rem;
}

a.status-square:hover {
  box-shadow: 0 0 0 0.18rem rgba(37, 99, 235, 0.18);
  text-decoration: none;
}

.status-square.correct {
  background: #22c55e;
  border-color: #16a34a;
  color: #ffffff;
}

.status-square.incorrect {
  background: #f97316;
  border-color: #ea580c;
  color: #ffffff;
}

.status-square.unanswered {
  background: #ffffff;
}

.status-square.is-disabled {
  cursor: not-allowed;
  opacity: 0.78;
}

.practice-question-item {
  background: #ffffff;
  border-top: 1px solid var(--app-line);
  grid-template-columns: minmax(0, 1fr) auto auto;
  padding: 0.85rem 1rem;
}

.practice-question-item:first-child {
  border-top: 0;
}

.practice-question-item:hover {
  background: #f8fafc;
}

.practice-question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.practice-badge {
  background: #f1f5f9;
  border: 1px solid var(--app-line);
  border-radius: 999px;
  color: var(--app-muted);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  white-space: nowrap;
}

.practice-badge.is-correct {
  background: #dcfce7;
  border-color: #bbf7d0;
  color: #166534;
}

.practice-badge.is-incorrect {
  background: #ffedd5;
  border-color: #fed7aa;
  color: #9a3412;
}

.practice-filter-grid .form-check {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  display: inline-flex;
  gap: 0.55rem;
  margin: 0;
  min-height: 2.7rem;
  padding: 0.55rem 0.85rem;
}

.practice-filter-grid .form-check:hover {
  border-color: #bfdbfe;
  box-shadow: 0 0 0 0.18rem rgba(37, 99, 235, 0.08);
}

.practice-filter-grid .form-check-input {
  height: 1.05rem;
  margin: 0;
  width: 1.05rem;
}

.practice-filter-grid .is-disabled {
  color: var(--app-muted);
  opacity: 0.82;
}

.practice-filter-grid .is-disabled:hover {
  border-color: var(--app-line);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.practice-filter-grid .form-check-label {
  display: grid;
  font-size: 0.96rem;
  font-weight: 700;
  gap: 0.1rem;
}

.practice-filter-grid small {
  color: var(--app-muted);
  font-size: 0.76rem;
}

.practice-question {
  display: grid;
  gap: 0;
}

.practice-question-text {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 0.5rem;
}

.practice-question-source {
  color: var(--app-muted);
  font-size: 0.9rem;
  font-weight: 700;
  margin-top: 0.1rem;
}

.practice-text-block {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.45;
}

.practice-code-block {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 0.5rem;
  color: #e2e8f0;
  font-size: 0.98rem;
  line-height: 1.65;
  margin: 0;
  overflow-x: auto;
  padding: 1rem;
  white-space: pre;
}

.practice-code-block code {
  color: inherit;
  font-family: Consolas, "Courier New", monospace;
  font-size: inherit;
}

.practice-choices {
  display: grid;
  gap: 0.6rem;
}

.practice-choices label {
  margin: 0;
}

.practice-choices input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.practice-choices span {
  background: #f8fafc;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  color: var(--app-text);
  cursor: pointer;
  display: block;
  font-weight: 700;
  min-height: 3rem;
  padding: 0.75rem 1rem;
}

.practice-choices input:checked + span {
  background: #dbeafe;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.practice-choices input:focus-visible + span {
  outline: 2px solid var(--app-primary);
  outline-offset: 2px;
}

.practice-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.practice-result {
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  padding: 1rem;
}

.practice-result.is-correct {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.practice-result.is-incorrect {
  background: #fff7ed;
  border-color: #fed7aa;
}

.practice-explanation {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  margin: 0.85rem 0;
  padding: 0.75rem;
}

.practice-explanation.is-locked {
  position: relative;
}

.practice-explanation.is-locked p {
  filter: blur(6px);
  user-select: none;
}

.practice-explanation.is-locked::after {
  align-items: center;
  background:
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, 0.78) 0,
      rgba(255, 255, 255, 0.78) 6px,
      rgba(226, 232, 240, 0.86) 6px,
      rgba(226, 232, 240, 0.86) 12px
    );
  border-radius: 0.5rem;
  bottom: 0.45rem;
  color: var(--app-muted);
  content: "解説はプレミアムプランで読めます";
  display: flex;
  font-size: 0.82rem;
  font-weight: 700;
  justify-content: center;
  left: 0.45rem;
  padding: 0.4rem;
  position: absolute;
  right: 0.45rem;
  top: 2.35rem;
}

.calendar-header {
  align-items: end;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.calendar-month-nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.calendar-month-nav strong {
  font-size: 1.1rem;
  min-width: 8rem;
  text-align: center;
}

.calendar-legend {
  color: var(--app-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.calendar-legend span {
  align-items: center;
  display: inline-flex;
  gap: 0.35rem;
}

.login-dot {
  background: var(--app-primary);
}

.milestone-dot {
  background: var(--app-review);
}

.activity-dot {
  background: var(--app-success);
}

.note-dot {
  background: var(--app-success);
}

.learning-calendar {
  background: var(--app-card);
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays {
  background: #f8fafc;
  border-bottom: 1px solid var(--app-line);
  color: var(--app-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
}

.calendar-weekdays div {
  padding: 0.75rem 0.5rem;
}

.calendar-cell {
  border-bottom: 1px solid var(--app-line);
  cursor: pointer;
  border-right: 1px solid var(--app-line);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 9.5rem;
  padding: 0.65rem;
}

.calendar-cell:nth-child(7n) {
  border-right: 0;
}

.calendar-cell:hover {
  background: #f8fafc;
}

.calendar-cell.is-muted {
  background: #f8fafc;
  color: #94a3b8;
}

.calendar-cell.is-today {
  background: #eff6ff;
  box-shadow: inset 0 0 0 2px #bfdbfe;
}

.calendar-cell.has-note {
  box-shadow: inset 0 -0.25rem 0 rgba(22, 163, 74, 0.28);
}

.calendar-cell-top {
  align-items: center;
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
}

.calendar-markers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: flex-end;
}

.calendar-marker {
  align-items: center;
  border-radius: 999px;
  color: #ffffff;
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 800;
  height: 1.35rem;
  justify-content: center;
  min-width: 1.35rem;
  padding: 0 0.35rem;
}

.login-marker {
  background: var(--app-primary);
}

.milestone-marker {
  background: var(--app-review);
}

.activity-marker {
  background: var(--app-success);
}

.calendar-events {
  display: grid;
  gap: 0.25rem;
}

.calendar-events span {
  border-radius: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.4rem;
}

.milestone-event {
  background: #fef3c7;
  color: #92400e;
}

.activity-event {
  background: #dcfce7;
  color: #166534;
}

.calendar-note {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 0.35rem;
  color: var(--app-text);
  cursor: pointer;
  flex: 1;
  font-size: 0.85rem;
  min-height: 3.5rem;
  padding: 0.45rem;
  resize: none;
  width: 100%;
}

.calendar-note:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.15rem rgba(37, 99, 235, 0.16);
  outline: 0;
}

.calendar-save-state {
  color: var(--app-muted);
  font-size: 0.75rem;
  min-height: 1rem;
}


.calendar-detail-modal {
  align-items: center;
  bottom: 0;
  display: flex;
  justify-content: center;
  left: 0;
  padding: 1.5rem;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 1060;
}

.calendar-detail-modal[hidden] {
  display: none;
}

.calendar-detail-backdrop {
  background: rgba(15, 23, 42, 0.45);
  bottom: 0;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.calendar-detail-window {
  background: #ffffff;
  border: 1px solid var(--app-line);
  border-radius: 0.5rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.28);
  max-height: min(78vh, 720px);
  max-width: 620px;
  overflow: auto;
  padding: 1.4rem;
  position: relative;
  width: min(100%, 620px);
}

.calendar-detail-window .notification-close {
  position: absolute;
  right: 1rem;
  top: 1rem;
}

.calendar-detail-section {
  border-top: 1px solid var(--app-line);
  padding-top: 1rem;
  margin-top: 1rem;
}

.calendar-detail-section ul {
  display: grid;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.calendar-detail-section li {
  background: #f8fafc;
  border-radius: 0.35rem;
  padding: 0.5rem 0.6rem;
}

.calendar-detail-note {
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
  color: var(--app-text);
  min-height: 10rem;
  padding: 0.75rem;
  resize: vertical;
  width: 100%;
}

.calendar-detail-note:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
  outline: 0;
}

@media (max-width: 991.98px) {
  .nav-container {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-actions {
    justify-content: flex-start;
    width: 100%;
  }

  .app-menu {
    flex-wrap: wrap;
  }

  .dashboard-header,
  .calendar-header,
  .progress-hero,
  .dashboard-layout,
  .manage-dashboard-grid,
  .manage-dashboard-stat-grid,
  .analytics-hero,
  .analytics-hero-stats,
  .analytics-chart-grid,
  .analytics-grid,
  .manage-detail-grid,
  .analytics-stat-row {
    grid-template-columns: 1fr;
  }

  .home-intro-action {
    margin-top: 0.75rem;
    position: static;
    width: 100%;
  }

  .calendar-month-nav {
    justify-content: flex-start;
  }

  .chapter-nav {
    position: static;
  }
}

@media (max-width: 575.98px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  .navbar {
    padding: 0.65rem 0;
  }

  main.container {
    max-width: 100%;
    overflow-x: hidden;
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
  }

  .home-app-intro {
    margin-bottom: 1.6rem;
    margin-top: 0;
    max-width: 100%;
  }

  .home-body-grid {
    gap: 1rem;
    max-width: 100%;
  }

  .home-body-card {
    --home-card-padding-x: 1rem;
    --home-card-padding-y: 1.15rem;
    border-left: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 0.5rem;
    border-right: 1px solid rgba(226, 232, 240, 0.9);
    margin-left: 0;
    margin-right: 0;
    max-width: 100%;
    overflow: hidden;
    padding: var(--home-card-padding-y) var(--home-card-padding-x) 1.35rem;
  }

  .home-body-card h2 {
    font-size: 1.24rem;
    line-height: 1.48;
    margin-bottom: 0.9rem;
    overflow-wrap: anywhere;
    padding-left: 0.7rem;
  }

  .home-body-card p,
  .home-card-list,
  .home-accordion-list {
    font-size: 1rem;
    line-height: 1.85;
    overflow-wrap: anywhere;
  }

  .home-mobile-screens {
    gap: 0.35rem;
    margin-top: 1rem;
  }

  .home-mobile-screens img {
    border-radius: 0.35rem;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
  }

  .home-conversion-actions,
  .home-conversion-actions .btn {
    width: 100%;
  }

  .home-problem-grid,
  .home-value-grid,
  .home-value-grid-three {
    grid-template-columns: 1fr;
  }

  .home-problem-grid div,
  .home-value-card {
    padding: 0.82rem 0.9rem;
  }

  .home-problem-grid div {
    padding-left: 2.2rem;
  }

  .home-feature-accordion summary {
    align-items: flex-start;
    gap: 0.5rem;
    line-height: 1.55;
    padding: 0.75rem 0.75rem;
  }

  .home-feature-accordion summary::before {
    margin-top: 0.18rem;
  }

  .home-feature-accordion summary::after {
    content: "開く";
    font-size: 0.78rem;
    margin-top: 0.1rem;
    padding: 0.28rem 0.52rem;
  }

  .home-feature-accordion details[open] summary::after {
    content: "閉じる";
  }

  .home-feature-accordion-body {
    padding: 0.85rem 0.85rem 1rem;
  }

  .home-feature-accordion-body p {
    font-size: 1rem;
  }

  .home-plan-table-wrap {
    margin-left: -0.25rem;
    margin-right: -0.25rem;
  }

  .home-plan-table {
    font-size: 0.92rem;
    min-width: 540px;
  }

  .home-plan-table th,
  .home-plan-table td {
    padding: 0.65rem 0.7rem;
  }

  .character-speech {
    align-items: start;
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .character-speech-character {
    gap: 0.3rem;
  }

  .character-speech-character img {
    height: 4.7rem;
    width: 4.7rem;
  }

  .character-speech-character span {
    font-size: 0.8rem;
  }

  .character-speech-bubble {
    border-left-width: 0.38rem;
    min-height: 0;
    padding: 0.95rem 1rem;
    width: 100%;
  }

  .character-speech-bubble::before {
    border-bottom: 0;
    border-left: 1px solid #c7d2fe;
    border-top: 1px solid #c7d2fe;
    left: calc(50% - 0.5rem);
    top: -0.55rem;
  }

  .character-speech-bubble p {
    font-size: 1.02rem;
    line-height: 1.75;
  }

  .character-speech-media-grid {
    gap: 0.55rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-container {
    gap: 0.65rem;
  }

  .brand-area {
    align-items: flex-start;
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
    border: 1px solid #bfdbfe;
    border-radius: 0.5rem;
    display: grid;
    gap: 0.45rem;
    padding: 0.75rem;
    width: 100%;
  }

  .navbar-brand {
    font-size: 1rem;
    line-height: 1.35;
    white-space: normal;
  }

  .plan-badge {
    grid-row: 2;
    justify-self: start;
  }

  .nav-actions {
    display: grid;
    gap: 0.55rem;
    grid-template-columns: minmax(0, 1fr) auto auto;
    width: 100%;
  }

  .app-menu {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.25rem;
    grid-column: 1 / -1;
    grid-row: 1;
    overflow-x: auto;
    padding: 0.3rem;
    scrollbar-width: none;
    width: 100%;
  }

  .app-menu::-webkit-scrollbar {
    display: none;
  }

  .menu-link {
    align-items: center;
    display: flex;
    justify-content: center;
    min-height: 2.25rem;
    padding: 0.45rem 0.65rem;
    text-align: center;
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .nav-actions form {
    grid-column: 3;
    grid-row: 2;
    justify-self: end;
  }

  .nav-plan-badge {
    align-self: center;
    display: inline-flex;
    grid-column: 2;
    grid-row: 2;
  }

  .brand-area > .plan-badge {
    display: none;
  }

  .nav-actions .btn {
    min-height: 2.35rem;
  }

  .stats-grid {
    gap: 0.6rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-card {
    padding: 0.8rem;
  }

  .stat-card span {
    font-size: 0.82rem;
  }

  .stat-card strong {
    font-size: 1.7rem;
  }

  .analytics-hero-stats {
    gap: 0.6rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .analytics-hero-stats .stat-card {
    min-width: 0;
    padding: 0.8rem;
  }

  .analytics-hero-stats .stat-card span {
    font-size: 0.78rem;
    line-height: 1.35;
  }

  .analytics-hero-stats .stat-card strong {
    font-size: 1.55rem;
  }

  .analytics-chart-card .eyebrow,
  .analytics-access-wrap .account-card > .eyebrow,
  .analytics-access-wrap .manage-list-header .eyebrow {
    color: #0f172a;
    display: block;
    font-size: 0.95rem;
    font-weight: 900;
    letter-spacing: 0;
    line-height: 1.35;
  }

  .dashboard-header {
    align-items: start;
  }

  .lesson-row {
    align-items: start;
    gap: 0.55rem;
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 0.7rem 1rem;
  }

  .lesson-main,
  .lesson-main a,
  .lesson-main span {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .status-options {
    display: none;
  }

  .status-select-wrap {
    display: block;
    width: 100%;
  }

  .status-select-mobile {
    min-height: 2.5rem;
    padding-bottom: 0.45rem;
    padding-top: 0.45rem;
  }

  .calendar-header {
    gap: 0.75rem;
    margin-bottom: 0.9rem !important;
  }

  .calendar-month-nav {
    align-items: center;
    display: grid;
    gap: 0.45rem;
    grid-template-columns: auto minmax(5.5rem, 1fr) auto;
    width: 100%;
  }

  .calendar-month-nav .btn {
    font-size: 0.84rem;
    padding: 0.35rem 0.55rem;
    white-space: nowrap;
  }

  .calendar-month-nav strong {
    font-size: 1rem;
    min-width: 0;
  }

  .calendar-legend {
    gap: 0.45rem 0.7rem;
    margin-bottom: 0.8rem !important;
  }

  .calendar-legend span {
    font-size: 0.78rem;
  }

  .learning-calendar {
    border-radius: 0.45rem;
  }

  .calendar-weekdays {
    display: grid;
    font-size: 0.72rem;
  }

  .calendar-weekdays div {
    padding: 0.35rem 0.15rem;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .calendar-cell {
    aspect-ratio: 1 / 1;
    border-right: 1px solid var(--app-line);
    gap: 0;
    min-height: 0;
    padding: 0.28rem;
  }

  .calendar-cell:nth-child(7n) {
    border-right: 0;
  }

  .calendar-cell-top {
    align-items: flex-start;
    display: grid;
    gap: 0.15rem;
    grid-template-rows: auto 1fr;
    height: 100%;
  }

  .calendar-cell-top strong {
    font-size: 0.84rem;
    line-height: 1;
  }

  .calendar-markers {
    align-content: end;
    align-items: end;
    align-self: end;
    gap: 0.12rem;
    justify-content: flex-start;
  }

  .calendar-marker {
    border: 0;
    font-size: 0;
    height: 0.42rem;
    min-width: 0;
    padding: 0;
    width: 0.42rem;
  }

  .calendar-events,
  .calendar-note,
  .calendar-save-state {
    display: none;
  }

  .calendar-cell.has-note {
    box-shadow: inset 0 -0.18rem 0 rgba(22, 163, 74, 0.38);
  }

  .calendar-cell.is-today {
    box-shadow: inset 0 0 0 2px #2563eb;
  }

  .calendar-cell.is-selected {
    background: #dbeafe;
    outline: 2px solid #2563eb;
    outline-offset: -2px;
  }

  .calendar-cell.is-selected .calendar-cell-top strong {
    color: #1d4ed8;
    font-weight: 900;
  }

  .calendar-detail-modal {
    align-items: flex-end;
    padding: 0 0.75rem 0.75rem;
  }

  .calendar-detail-window {
    animation: calendarSheetIn 180ms ease-out;
    border-radius: 0.9rem 0.9rem 0.45rem 0.45rem;
    max-height: 86vh;
    padding: 1.45rem 1.1rem 1.1rem;
    width: min(100%, 34rem);
  }

  .calendar-detail-window::before {
    background: #cbd5e1;
    border-radius: 999px;
    content: "";
    height: 0.25rem;
    left: 50%;
    position: absolute;
    top: 0.55rem;
    transform: translateX(-50%);
    width: 2.6rem;
  }

  .calendar-detail-window .notification-close {
    right: 0.75rem;
    top: 0.75rem;
  }

  @keyframes calendarSheetIn {
    from {
      opacity: 0;
      transform: translateY(1.25rem);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .practice-list-header,
  .practice-question-item {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .practice-question-meta {
    justify-content: flex-start;
  }

  .practice-list-eyebrow {
    display: none;
  }

  .practice-state-panel:has(.practice-list-picker-card) {
    background: transparent;
    border: 0;
    box-shadow: none;
    gap: 0.8rem;
    padding: 0;
  }

  .practice-list-picker-card {
    background: #ffffff;
    border: 1px solid var(--app-line);
    border-radius: 0.5rem;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
    display: grid;
    gap: 0.75rem;
    padding: 1rem;
  }

  .practice-state-panel:has(.practice-list-picker-card) .practice-status-overview {
    background: #ffffff;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
  }

  .practice-group-grid {
    grid-template-columns: 1fr;
  }

  .practice-mobile-accordion {
    display: grid;
    gap: 0.7rem;
  }

  .practice-mobile-accordion summary {
    align-items: center;
    background: #f8fafc;
    border: 1px solid #bfdbfe;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08);
    color: #1e40af;
    cursor: pointer;
    display: flex;
    font-weight: 800;
    justify-content: space-between;
    line-height: 1.4;
    list-style: none;
    min-height: 3rem;
    padding: 0.75rem 0.9rem;
  }

  .practice-mobile-accordion[open] summary {
    background: #eff6ff;
    border-color: #93c5fd;
    border-radius: 0.5rem 0.5rem 0 0;
  }

  .practice-mobile-accordion summary::-webkit-details-marker {
    display: none;
  }

  .practice-mobile-accordion summary::after {
    align-items: center;
    background: #ffffff;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    color: var(--app-primary);
    content: "+";
    display: inline-flex;
    font-size: 1.2rem;
    font-weight: 800;
    height: 1.6rem;
    justify-content: center;
    line-height: 1;
    margin-left: 0.75rem;
    width: 1.6rem;
  }

  .practice-mobile-accordion[open] summary::after {
    content: "-";
  }

  .practice-mobile-accordion .practice-filter-grid {
    display: grid;
    gap: 0.55rem;
    grid-template-columns: 1fr;
  }

  .practice-mobile-accordion .form-check {
    min-height: 2.85rem;
    width: 100%;
  }

  .practice-lesson-accordion .practice-group-grid {
    background: #ffffff;
    border: 1px solid #bfdbfe;
    border-radius: 0 0 0.5rem 0.5rem;
    border-top: 0;
    display: grid;
    gap: 0.55rem;
    grid-template-columns: 1fr;
    padding: 0.75rem;
  }

  .practice-lesson-accordion .practice-group-card {
    align-items: center;
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
    min-height: 3rem;
    padding: 0.65rem 0.85rem;
  }

  .practice-lesson-accordion .practice-group-card strong {
    font-size: 0.9rem;
    white-space: nowrap;
  }

  .practice-lesson-accordion .practice-group-card.is-active {
    box-shadow: inset 0.25rem 0 0 var(--app-primary);
  }

  .practice-list-summary {
    grid-template-columns: 1fr;
  }

  .practice-article-status-card {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .account-layout {
    grid-template-columns: 1fr;
  }

  .account-coupon-card {
    align-items: stretch;
    grid-template-columns: 1fr;
    padding: 1.25rem;
  }

  .account-coupon-card-action {
    justify-self: start;
    white-space: normal;
    width: 100%;
  }

  .manage-content-grid {
    grid-template-columns: 1fr;
  }

  .manage-import-form,
  .manage-import-result,
  .manage-filter-form,
  .manage-form-grid {
    grid-template-columns: 1fr;
  }

  .plan-compare-grid {
    grid-template-columns: 1fr;
  }

  .coupon-hero-choices {
    grid-template-columns: 1fr;
  }

  .coupon-hero-title {
    font-size: 1.45rem;
  }

  .coupon-hero {
    padding: 1rem;
  }

  .checkout-preview {
    grid-template-columns: 1fr;
  }

  .account-upgrade-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1rem;
  }

  .account-upgrade-heading .btn {
    align-self: start;
  }

  .checkout-detail-list div {
    grid-template-columns: 1fr;
  }

  .checkout-action-card {
    align-items: stretch;
  }

  .checkout-action-card .btn,
  .checkout-action-card form {
    width: 100%;
  }

  .practice-status-squares {
    gap: 0.55rem;
  }

  .status-square {
    height: 2.35rem;
    min-width: 2.35rem;
    width: 2.35rem;
  }
}

@media (max-width: 767.98px) {
  .calendar-weekdays {
    display: grid;
    font-size: 0.72rem;
  }

  .calendar-weekdays div {
    padding: 0.35rem 0.15rem;
  }

  .calendar-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .calendar-cell {
    aspect-ratio: 1 / 1;
    border-right: 1px solid var(--app-line);
    gap: 0;
    min-height: 0;
    padding: 0.28rem;
  }

  .calendar-cell:nth-child(7n) {
    border-right: 0;
  }

  .calendar-cell-top {
    align-items: flex-start;
    display: grid;
    gap: 0.15rem;
    grid-template-rows: auto 1fr;
    height: 100%;
  }

  .calendar-cell-top strong {
    font-size: 0.84rem;
    line-height: 1;
  }

  .calendar-markers {
    align-content: end;
    align-items: end;
    align-self: end;
    gap: 0.12rem;
    justify-content: flex-start;
  }

  .calendar-marker {
    border: 0;
    font-size: 0;
    height: 0.42rem;
    min-width: 0;
    padding: 0;
    width: 0.42rem;
  }

  .calendar-events,
  .calendar-note,
  .calendar-save-state {
    display: none;
  }

  .calendar-cell.has-note {
    box-shadow: inset 0 -0.18rem 0 rgba(22, 163, 74, 0.38);
  }

  .calendar-cell.is-today {
    box-shadow: inset 0 0 0 2px #2563eb;
  }

  .calendar-cell.is-selected {
    background: #dbeafe;
    outline: 2px solid #2563eb;
    outline-offset: -2px;
  }

  .calendar-cell.is-selected .calendar-cell-top strong {
    color: #1d4ed8;
    font-weight: 900;
  }

  .calendar-detail-modal {
    display: block;
    margin-top: 0.9rem;
    padding: 0;
    position: static;
  }

  .calendar-detail-backdrop {
    display: none;
  }

  .calendar-detail-window {
    animation: none;
    border: 1px solid var(--app-line);
    border-radius: 0.55rem;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
    max-height: none;
    max-width: none;
    padding: 1rem;
    width: 100%;
  }

  .calendar-detail-window::before {
    content: none;
  }

  .calendar-detail-window .notification-close {
    display: none;
  }

  .app-footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .app-footer nav {
    flex-direction: column;
    gap: 0.4rem;
  }

  .legal-page {
    padding: 1.15rem;
  }

  .legal-page h1 {
    font-size: 1.45rem;
  }

  .legal-definition-list div {
    gap: 0.25rem;
    grid-template-columns: 1fr;
  }
}

.calendar-cell.is-saturday:not(.is-holiday) .calendar-cell-top > strong {
  color: #2563eb;
}

.calendar-cell.is-holiday .calendar-cell-top > strong {
  color: #dc2626;
}