:root {
  --bg: #f4efe7;
  --bg-deep: #e8ded0;
  --panel: rgba(255, 251, 245, 0.88);
  --panel-strong: #fffdf8;
  --text: #1f2937;
  --muted: #6b7280;
  --line: rgba(112, 94, 74, 0.16);
  --shadow: 0 18px 45px rgba(71, 52, 36, 0.12);
  --accent: #0f766e;
  --accent-deep: #0b4f4a;
  --accent-soft: #d6efe8;
  --accent-contrast: #f5fcfb;
  --warm: #bb6b3f;
  --warm-soft: #f7e5d8;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Yu Gothic UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.06), transparent 36%),
    linear-gradient(210deg, rgba(187, 107, 63, 0.08), transparent 30%),
    linear-gradient(180deg, #fbf8f3 0%, var(--bg) 56%, var(--bg-deep) 100%);
  min-height: 100vh;
  position: relative;
}

img,
video,
svg,
canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-orb {
  position: fixed;
  width: 34vw;
  aspect-ratio: 1;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}

.page-orb-a {
  top: -8vw;
  right: -10vw;
  background: rgba(15, 118, 110, 0.18);
}

.page-orb-b {
  bottom: -12vw;
  left: -10vw;
  background: rgba(187, 107, 63, 0.18);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

.container {
  width: min(1180px, 94vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.site-main {
  padding-bottom: 40px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(112, 94, 74, 0.08);
  background: rgba(255, 248, 240, 0.76);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand-block,
.topbar-inner > *,
.topbar-actions > *,
.main-nav > *,
.admin-nav-pills > *,
.section-head > *,
.course-card-top > *,
.lesson-item > *,
.lesson-actions > *,
.action-stack > *,
.row > *,
.video-toolbar > * {
  min-width: 0;
}

.brand-block {
  flex: 1 1 320px;
}

.brand-block h1 {
  margin: 0;
  font-family: "Shippori Mincho", serif;
  font-size: clamp(1.3rem, 2vw, 1.85rem);
  letter-spacing: 0.02em;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 auto;
  flex-wrap: wrap;
  gap: 12px;
  min-width: 0;
}

.main-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.main-nav a,
.nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(15, 118, 110, 0.16);
  color: var(--accent-deep);
  background: rgba(214, 239, 232, 0.56);
  font-size: 0.92rem;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.main-nav a:hover,
.nav-pill:hover {
  transform: translateY(-1px);
  background: rgba(214, 239, 232, 0.92);
  border-color: rgba(15, 118, 110, 0.3);
}

.profile-chip {
  display: grid;
  gap: 2px;
  padding: 10px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(112, 94, 74, 0.08);
  max-width: 100%;
}

.profile-name {
  font-weight: 700;
  font-size: 0.92rem;
}

.profile-role {
  color: var(--muted);
  font-size: 0.78rem;
}

.panel,
.hero-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel,
.hero-panel,
.summary-panel,
.login-panel,
.surface-card,
.metric-card,
.course-card,
.course-admin-card,
.bullet-card {
  min-width: 0;
}

.panel {
  padding: 24px;
  margin: 20px 0;
}

.panel-tight {
  padding: 20px;
}

.nested-panel {
  padding: 18px;
  margin-top: 14px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: none;
}

.hero-panel {
  padding: 28px;
  margin: 22px 0;
  display: grid;
  gap: 20px;
  align-items: stretch;
  position: relative;
  overflow: hidden;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -60px -60px auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.18), transparent 70%);
}

.login-hero,
.course-hero,
.admin-hero {
  grid-template-columns: 1.35fr 0.95fr;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.page-title {
  margin: 0;
  font-family: "Shippori Mincho", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
}

.page-subtitle {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.85;
  max-width: 60ch;
}

.brand-block h1,
.brand-block h1 a,
.page-title,
.page-subtitle,
.profile-name,
.profile-role,
.section-head h3,
.course-card h3,
.course-admin-card h3,
.inline-note,
.section-note,
.status-pill,
.badge,
button,
.button,
.ghost-button,
.main-nav a,
.nav-pill,
.meta-strip span,
.compact-summary-chip span,
.compact-summary-chip strong {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.summary-panel,
.login-panel,
.surface-card,
.metric-card,
.course-card,
.course-admin-card,
.bullet-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(112, 94, 74, 0.08);
  border-radius: 22px;
  padding: 18px;
}

.summary-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.summary-panel strong {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1;
}

.summary-label,
.metric-label,
.bullet-label,
.section-note {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.bullet-grid,
.stats-grid,
.toggle-grid,
.course-grid,
.content-split {
  display: grid;
  gap: 16px;
}

.bullet-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

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

.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: 2.2rem;
  color: var(--accent-deep);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 14px;
  margin-bottom: 16px;
}

.section-head h3,
.surface-card h4,
.login-panel h3 {
  margin: 0;
  font-family: "Shippori Mincho", serif;
  font-size: 1.28rem;
}

.login-hero {
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 500px);
  align-items: center;
}

.login-panel {
  width: 100%;
  display: flex;
  justify-content: center;
  margin: 0 auto;
}

.login-card {
  width: min(100%, 500px);
  margin: 0 auto;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(112, 94, 74, 0.08);
  box-shadow: 0 20px 50px rgba(31, 41, 55, 0.1);
}

.login-card .card-body {
  padding: clamp(1.5rem, 2.4vw, 2rem);
}

.login-heading {
  margin-bottom: 8px;
}

.login-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.login-tabs {
  margin: 22px 0 18px;
  border-bottom-color: rgba(112, 94, 74, 0.12);
}

.login-tabs .nav-item {
  flex: 1 1 0;
}

.login-tabs .nav-link {
  width: 100%;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 16px 16px 0 0;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  padding: 14px 16px;
  box-shadow: none;
}

.login-tabs .nav-link:hover,
.login-tabs .nav-link:focus {
  color: var(--accent-deep);
  background: rgba(214, 239, 232, 0.5);
  border-color: transparent;
  transform: none;
}

.login-tabs .nav-link.active {
  color: var(--accent-deep);
  background: rgba(214, 239, 232, 0.82);
  border-color: rgba(15, 118, 110, 0.22) rgba(15, 118, 110, 0.22) transparent;
}

.login-tab-content {
  padding-top: 4px;
}

.login-form {
  gap: 16px;
}

.login-field {
  display: grid;
  gap: 8px;
}

.login-label {
  font-size: 0.92rem;
  font-weight: 700;
}

.login-input-icon {
  width: 1rem;
  height: 1rem;
  flex: none;
}

.login-card .input-group {
  align-items: stretch;
}

.login-card .input-group-text {
  padding: 0 16px;
  border-radius: 16px 0 0 16px;
  border: 1px solid rgba(112, 94, 74, 0.16);
  border-right: 0;
  background: rgba(245, 252, 251, 0.92);
  color: var(--accent-deep);
}

.login-card .form-control {
  padding: 14px 16px;
  border-radius: 0 16px 16px 0;
  border: 1px solid rgba(112, 94, 74, 0.16);
  border-left: 0;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: none;
}

.login-card .form-control:focus {
  border-color: rgba(15, 118, 110, 0.36);
  box-shadow: none;
}

.login-card .input-group:focus-within .input-group-text {
  border-color: rgba(15, 118, 110, 0.36);
}

.login-card .password-group .form-control {
  border-radius: 0;
}

.password-toggle {
  min-width: 84px;
  border-radius: 0 16px 16px 0;
  border: 1px solid rgba(112, 94, 74, 0.16);
  border-left: 0;
  background: rgba(255, 255, 255, 0.96);
  color: var(--accent-deep);
  font-weight: 700;
  box-shadow: none;
}

.password-toggle:hover,
.password-toggle:focus {
  background: rgba(214, 239, 232, 0.68);
  color: var(--accent-deep);
  transform: none;
  box-shadow: none;
}

.login-card .btn-primary {
  border: 0;
  border-radius: 18px;
  padding: 15px 18px;
  font-weight: 700;
}

.login-hint {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.9rem;
}

.compact-section-head {
  align-items: start;
  margin-bottom: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 16px;
}

.course-card,
.course-admin-card {
  display: grid;
  gap: 16px;
}

.course-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: start;
}

.compact-course-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 18px 22px;
}

.compact-page-title {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.compact-page-subtitle {
  margin: 6px 0 0;
  max-width: 760px;
}

.compact-summary-chip {
  display: grid;
  gap: 4px;
  min-width: 150px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(112, 94, 74, 0.08);
  text-align: center;
}

.compact-summary-chip strong {
  font-size: 2rem;
  line-height: 1;
  color: var(--accent-deep);
}

.compact-summary-chip span {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.compact-course-panel {
  padding: 16px 18px;
}

.dashboard-summary-bar {
  align-items: flex-start;
  gap: 14px 18px;
  flex-wrap: wrap;
}

.dashboard-summary-copy {
  flex: 1 1 320px;
  min-width: 0;
}

.dashboard-summary-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(108px, 1fr));
  gap: 10px;
  flex: 1.2 1 520px;
  width: min(100%, 680px);
}

.dashboard-title {
  font-size: clamp(1.45rem, 2.2vw, 1.95rem);
}

.dashboard-subtitle {
  margin-top: 4px;
  max-width: 64ch;
  font-size: 0.92rem;
  line-height: 1.55;
}

.dashboard-summary-bar .eyebrow,
.dashboard-courses-panel .eyebrow {
  margin-bottom: 4px;
}

.dashboard-summary-bar .compact-summary-chip {
  min-width: 0;
  padding: 12px 14px;
  border-radius: 16px;
}

.dashboard-summary-bar .compact-summary-chip strong {
  font-size: 1.6rem;
}

.dashboard-summary-bar .metric-label {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

.dashboard-courses-panel .section-head {
  margin-bottom: 12px;
}

.dashboard-courses-panel .section-head h3 {
  font-size: 1.12rem;
}

.dashboard-courses-panel .section-note {
  white-space: nowrap;
}

.card-grid-dense {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.course-card-compact {
  gap: 12px;
  padding: 14px;
  border-radius: 18px;
  align-content: start;
}

.course-card-compact .course-card-top {
  gap: 8px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.course-card-compact h3 {
  font-size: 1rem;
  line-height: 1.35;
}

.course-card-compact p {
  font-size: 0.88rem;
  line-height: 1.55;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.course-card-compact .course-attendance {
  font-size: 0.8rem;
}

.course-card-compact .course-metrics {
  gap: 8px;
}

.course-card-compact .course-metrics div {
  padding: 10px;
  border-radius: 14px;
}

.course-card-compact .course-metrics span {
  font-size: 0.72rem;
}

.course-card-compact .course-metrics strong {
  margin-top: 4px;
  font-size: 0.94rem;
}

.course-card-compact .status-pill {
  padding: 4px 10px;
  font-size: 0.74rem;
}

.course-card-compact .button {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.88rem;
}

.course-create-bar {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.95fr) minmax(0, 1fr) minmax(0, 1.2fr) auto;
  gap: 10px;
  align-items: start;
}

.compact-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.compact-field span,
.cell-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.course-admin-head {
  display: grid;
  grid-template-columns: minmax(110px, 0.72fr) minmax(0, 1.2fr) minmax(0, 0.95fr) minmax(0, 1.08fr) minmax(0, 1.15fr);
  gap: 12px;
  padding: 0 6px 8px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.course-admin-head .sort-link {
  width: 100%;
  justify-content: flex-start;
}

.course-admin-list {
  display: grid;
  gap: 12px;
}

.course-admin-cardline {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.course-admin-row {
  display: grid;
  grid-template-columns: minmax(110px, 0.72fr) minmax(0, 1.2fr) minmax(0, 0.95fr) minmax(0, 1.08fr) minmax(0, 1.15fr);
  gap: 12px;
  align-items: start;
}

.course-status-cell,
.course-primary-cell,
.course-code-cell,
.course-settings-cell,
.course-actions-cell {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.course-status-cell {
  align-content: start;
}

.course-code-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.compact-toggle-bank {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.compact-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(245, 252, 251, 0.78);
  border: 1px solid rgba(15, 118, 110, 0.08);
  font-size: 0.88rem;
  min-width: 0;
}

.course-action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: stretch;
}

.course-action-group > *,
.course-code-meta > * {
  max-width: 100%;
}

.course-action-group .button,
.course-action-group .ghost-button,
.course-action-group button {
  flex: 1 1 112px;
}

.course-archive-form {
  justify-content: flex-end;
}

.mini-button {
  padding: 9px 12px;
  font-size: 0.84rem;
}

.inline-note {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.45;
}

.warning-text {
  color: #a14b12;
}

.warning-pill {
  background: linear-gradient(135deg, #ffe1bf, #fff0dc);
  color: #8a3f11;
}

.course-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.course-card h3,
.course-admin-card h3 {
  margin: 0;
  font-size: 1.2rem;
}

.course-card p,
.course-admin-card p,
.bullet-card p,
.summary-panel p,
.surface-card p,
.lesson-item p,
.empty-state p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.course-attendance {
  color: var(--muted);
  font-size: 0.88rem;
}

.course-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.course-metrics div,
.toggle-grid label {
  padding: 12px;
  border-radius: 16px;
  background: rgba(245, 252, 251, 0.78);
  border: 1px solid rgba(15, 118, 110, 0.08);
}

.course-metrics span {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
}

.course-metrics strong {
  display: block;
  margin-top: 6px;
}

.status-pill,
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.status-pill {
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent-deep);
}

.status-complete {
  background: rgba(15, 118, 110, 0.14);
}

.status-active {
  background: rgba(187, 107, 63, 0.14);
  color: #8a4b27;
}

.status-muted {
  background: rgba(107, 114, 128, 0.12);
  color: var(--muted);
}

.badge {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.meta-strip span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(112, 94, 74, 0.1);
  font-size: 0.88rem;
}

.content-split {
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.9fr);
}

.stack-column {
  display: grid;
  gap: 18px;
}

.lesson-list,
.faq-list,
.stack-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lesson-item,
.faq-list li {
  border-top: 1px solid rgba(112, 94, 74, 0.1);
  padding: 16px 0;
}

.lesson-list .lesson-item:first-child,
.faq-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.lesson-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.lesson-item strong {
  display: block;
  margin-bottom: 4px;
}

.lesson-actions,
.action-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.lesson-empty,
.empty-state {
  text-align: center;
  padding: 28px 20px;
}

.empty-state h3 {
  margin-top: 0;
  font-family: "Shippori Mincho", serif;
}

.admin-nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.builder-shell,
.builder-list,
.builder-section,
.builder-sublist {
  display: grid;
  gap: 14px;
}

.builder-card {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(112, 94, 74, 0.1);
}

.builder-card-head,
.builder-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.builder-card-title {
  font-size: 1rem;
  font-weight: 700;
}

.builder-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.builder-section h4 {
  margin: 0;
  font-size: 1rem;
}

.builder-subitem {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border-radius: 18px;
  background: rgba(245, 252, 251, 0.72);
  border: 1px solid rgba(15, 118, 110, 0.08);
}

.builder-subitem-keyword {
  grid-template-columns: minmax(0, 1.2fr) 120px auto auto;
}

.builder-field,
.builder-field-grow,
.builder-field-number {
  min-width: 0;
}

.builder-field-grow {
  width: 100%;
}

.builder-field-number input {
  width: 100%;
}

.builder-check {
  align-self: center;
  margin: 0;
}

.compact-form {
  width: 100%;
  min-width: 0;
}

.wrap-form {
  flex-wrap: wrap;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.94rem;
}

.form-floating {
  position: relative;
  gap: 0;
  min-width: 0;
}

.form-floating > span {
  position: absolute;
  top: 11px;
  left: 15px;
  right: 15px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  pointer-events: none;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(112, 94, 74, 0.16);
  background: rgba(255, 255, 255, 0.84);
  color: var(--text);
}

.form-floating > input,
.form-floating > select,
.form-floating > textarea {
  padding-top: 28px;
}

.form-floating > textarea {
  min-height: 120px;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.18);
  border-color: rgba(15, 118, 110, 0.36);
}

textarea {
  resize: vertical;
}

.text-danger {
  color: var(--danger);
}

.invalid-feedback {
  display: none;
  margin-top: 8px;
  font-size: 0.84rem;
  color: var(--danger);
}

.field-invalid > .invalid-feedback {
  display: block;
}

.was-validated input:invalid,
.was-validated select:invalid,
.was-validated textarea:invalid,
input.is-invalid,
select.is-invalid,
textarea.is-invalid {
  border-color: rgba(185, 28, 28, 0.42);
  box-shadow: 0 0 0 0.18rem rgba(185, 28, 28, 0.12);
}

.field-invalid.form-floating > span,
fieldset.field-invalid > legend {
  color: var(--danger);
}

fieldset.field-invalid {
  border-color: rgba(185, 28, 28, 0.28);
}

.field-error {
  border-color: rgba(185, 28, 28, 0.42) !important;
  box-shadow: 0 0 0 0.18rem rgba(185, 28, 28, 0.12);
}

.validation-error {
  display: block;
  margin-top: 8px;
  font-size: 0.84rem;
  color: var(--danger);
}

button,
.button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  max-width: 100%;
}

button,
.button {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--accent-contrast);
}

button:hover,
.button:hover {
  transform: translateY(-1px);
}

.secondary {
  background: linear-gradient(135deg, rgba(214, 239, 232, 0.95), rgba(245, 252, 251, 0.96));
  color: var(--accent-deep);
  border: 1px solid rgba(15, 118, 110, 0.14);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.64);
  color: var(--text);
  border: 1px solid rgba(112, 94, 74, 0.12);
}

.danger-button {
  background: linear-gradient(135deg, #c23a3a, #991b1b);
  color: #fff;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.muted {
  color: var(--muted);
}

.hint {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.6);
  border-radius: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.narrow {
  width: min(620px, 100%);
}

.warning {
  border-color: rgba(187, 107, 63, 0.26);
  background: linear-gradient(180deg, rgba(255, 246, 237, 0.95), rgba(255, 251, 245, 0.88));
}

.surface-card {
  height: 100%;
}

.video-shell {
  display: grid;
  gap: 12px;
}

.video-shell video {
  width: 100%;
  border-radius: 24px;
  background: #000;
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.18);
}

.video-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.table-scroll,
.table-responsive {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

.list-filter-form {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
  margin-bottom: 18px;
}

.list-filter-form > * {
  min-width: 0;
}

.search-field {
  flex: 1 1 320px;
}

.list-sort-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sort-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-deep);
}

th .sort-link {
  font-size: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  font-weight: inherit;
}

.course-admin-head .sort-link,
.list-sort-row .sort-link {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(112, 94, 74, 0.12);
}

.pagination-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}

.pagination-link {
  min-width: 44px;
}

.pagination-link.is-current {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--accent-contrast);
  border-color: transparent;
}

.pagination-ellipsis {
  color: var(--muted);
  padding: 0 4px;
}

.table-scroll table,
.table-responsive table {
  min-width: 100%;
}

.table-responsive .dt-container {
  min-width: 840px;
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.74);
}

th,
td {
  border-bottom: 1px solid rgba(112, 94, 74, 0.1);
  padding: 12px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}

th {
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.66);
}

.dt-container {
  display: grid;
  gap: 12px;
}

.dt-container .dt-layout-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.dt-container .dt-layout-cell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.dt-container .dt-search label,
.dt-container .dt-length label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--muted);
}

.dt-container .dt-search input,
.dt-container .dt-length select {
  width: auto;
  min-width: 0;
}

.dt-container .dt-info {
  color: var(--muted);
  font-size: 0.88rem;
}

.dt-container .dt-paging {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dt-container .dt-paging .dt-paging-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(112, 94, 74, 0.12);
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.dt-container .dt-paging .dt-paging-button:hover,
.dt-container .dt-paging .dt-paging-button.current {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-color: transparent;
  color: var(--accent-contrast);
}

.dt-container .dt-paging .dt-paging-button.disabled,
.dt-container .dt-paging .dt-paging-button.disabled:hover {
  transform: none;
  opacity: 0.45;
  cursor: default;
  background: rgba(255, 255, 255, 0.76);
  border-color: rgba(112, 94, 74, 0.12);
  color: var(--muted);
}

.user-course-list,
.user-summary-grid {
  display: grid;
  gap: 8px;
}

.user-course-item a {
  color: var(--accent-deep);
}

.user-table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.user-edit-layout {
  align-items: start;
}

.user-meta-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.user-meta-list div {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.user-meta-list dt {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.user-meta-list dd {
  margin: 8px 0 0;
  line-height: 1.7;
}

.break-word {
  word-break: break-all;
}

.flash-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.flash {
  padding: 14px 16px;
  border-radius: 18px;
  margin-bottom: 10px;
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.flash-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.flash-success {
  background: #dcfce7;
  color: #166534;
}

.inline-form {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  max-width: 100%;
}

.top-gap {
  margin-top: 10px;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

fieldset {
  border: 1px solid rgba(112, 94, 74, 0.12);
  border-radius: 20px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.5);
  min-width: 0;
}

legend {
  padding: 0 8px;
  font-weight: 700;
}

.certificate-layout {
  align-items: start;
}

.certificate-hero {
  overflow: visible;
}

.certificate-sheet {
  padding: 28px;
}

.certificate-frame {
  display: grid;
  gap: 24px;
  min-height: 980px;
  padding: 40px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(15, 118, 110, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(251, 248, 243, 0.98));
  border: 1px solid rgba(15, 118, 110, 0.14);
  box-shadow: inset 0 0 0 10px rgba(214, 239, 232, 0.45);
}

.certificate-sheet-header,
.certificate-proof,
.verification-grid {
  display: grid;
  gap: 18px;
}

.certificate-sheet-header {
  grid-template-columns: 1fr auto;
  align-items: start;
}

.certificate-title-block {
  display: grid;
  gap: 12px;
  text-align: center;
}

.certificate-title-block h3 {
  margin: 0;
  font-family: "Shippori Mincho", serif;
  font-size: clamp(2.3rem, 4vw, 3.4rem);
}

.certificate-title-block p {
  margin: 0 auto;
  max-width: 38rem;
  color: var(--muted);
  line-height: 1.9;
}

.certificate-number {
  word-break: break-word;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

.certificate-recipient {
  display: grid;
  gap: 10px;
  justify-items: center;
  padding: 24px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.certificate-recipient strong {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.certificate-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.certificate-meta div,
.certificate-qr-card,
.verification-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(112, 94, 74, 0.08);
}

.certificate-meta dt {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.certificate-meta dd {
  margin: 8px 0 0;
  font-size: 1.05rem;
  line-height: 1.7;
}

.certificate-proof {
  grid-template-columns: 220px minmax(0, 1fr);
  align-items: center;
}

.certificate-qr-card {
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
}

.certificate-qr-card p,
.certificate-proof-copy p,
.verification-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.certificate-qr-image {
  width: min(180px, 100%);
  height: auto;
  display: block;
}

.certificate-proof-copy {
  display: grid;
  gap: 12px;
}

.certificate-link {
  word-break: break-all;
  color: var(--accent-deep);
}

.certificate-verify-hero {
  grid-template-columns: 1.3fr 0.9fr;
}

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

.verification-card strong {
  display: block;
  margin: 10px 0 6px;
  font-size: 1.3rem;
}

:root {
  color-scheme: light;
  --bg: #edf4ef;
  --bg-deep: #dbe6df;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-strong: #ffffff;
  --text: #18212b;
  --muted: #667585;
  --muted-soft: rgba(102, 117, 133, 0.14);
  --line: rgba(24, 33, 43, 0.1);
  --shadow: 0 18px 45px rgba(16, 24, 32, 0.12);
  --primary-color: #2f7d68;
  --primary-color-strong: #215847;
  --primary-color-soft: #dcefe6;
  --primary-color-muted: rgba(47, 125, 104, 0.14);
  --primary-color-contrast: #f5fcf8;
  --primary-border: rgba(47, 125, 104, 0.18);
  --primary-border-strong: rgba(47, 125, 104, 0.32);
  --primary-shadow: rgba(47, 125, 104, 0.24);
  --secondary-color: #5f8a78;
  --secondary-color-soft: #e7f1ec;
  --secondary-contrast: #1f4136;
  --accent: var(--primary-color);
  --accent-deep: var(--primary-color-strong);
  --accent-soft: var(--primary-color-soft);
  --accent-contrast: var(--primary-color-contrast);
  --warm: #946241;
  --warm-soft: #f3e7dc;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --success: #166534;
  --success-soft: #dcfce7;
  --warning: #8a4b27;
  --warning-soft: #fff0dc;
  --surface-subtle: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.84);
  --navbar-bg: rgba(248, 250, 248, 0.92);
  --navbar-text: #18212b;
  --navbar-border: rgba(24, 33, 43, 0.08);
  --input-bg: rgba(255, 255, 255, 0.92);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1412;
  --bg-deep: #121d19;
  --panel: rgba(18, 28, 25, 0.88);
  --panel-strong: #15201c;
  --text: #edf5f1;
  --muted: #9dafaa;
  --muted-soft: rgba(157, 175, 170, 0.14);
  --line: rgba(157, 175, 170, 0.14);
  --shadow: 0 22px 50px rgba(0, 0, 0, 0.34);
  --primary-color: #61b899;
  --primary-color-strong: #479178;
  --primary-color-soft: rgba(97, 184, 153, 0.16);
  --primary-color-muted: rgba(97, 184, 153, 0.2);
  --primary-color-contrast: #08110d;
  --primary-border: rgba(97, 184, 153, 0.2);
  --primary-border-strong: rgba(97, 184, 153, 0.38);
  --primary-shadow: rgba(0, 0, 0, 0.28);
  --secondary-color: #9fc4b4;
  --secondary-color-soft: rgba(159, 196, 180, 0.14);
  --secondary-contrast: #edf5f1;
  --warm: #f0c39b;
  --warm-soft: rgba(240, 195, 155, 0.12);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.14);
  --success: #4ade80;
  --success-soft: rgba(74, 222, 128, 0.14);
  --warning: #f6c285;
  --warning-soft: rgba(246, 194, 133, 0.14);
  --surface-subtle: rgba(23, 34, 30, 0.78);
  --surface-strong: rgba(19, 30, 27, 0.92);
  --navbar-bg: rgba(11, 18, 16, 0.92);
  --navbar-text: #edf5f1;
  --navbar-border: rgba(157, 175, 170, 0.12);
  --input-bg: rgba(18, 28, 25, 0.94);
}

body {
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(47, 125, 104, 0.08), transparent 34%),
    linear-gradient(210deg, rgba(95, 138, 120, 0.08), transparent 28%),
    linear-gradient(180deg, var(--panel-strong) 0%, var(--bg) 58%, var(--bg-deep) 100%);
}

.page-orb-a {
  background: rgba(47, 125, 104, 0.18);
}

.page-orb-b {
  background: rgba(95, 138, 120, 0.2);
}

.topbar {
  border-bottom: 1px solid var(--navbar-border);
  background: var(--navbar-bg);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.navbar-light .brand-block h1 a,
.navbar-light .main-nav a,
.navbar-light .theme-toggle {
  color: var(--navbar-text);
}

.theme-toggle,
.admin-nav > * {
  min-width: 0;
}

.main-nav a,
.nav-pill {
  border: 1px solid var(--primary-border);
  background: transparent;
  color: var(--navbar-text);
}

.main-nav a:hover,
.nav-pill:hover {
  background: var(--primary-color-soft);
  border-color: var(--primary-border-strong);
}

.main-nav a.is-active {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  border-color: transparent;
  color: var(--primary-color-contrast);
  box-shadow: 0 12px 24px var(--primary-shadow);
}

.theme-toggle {
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--navbar-text);
  box-shadow: none;
}

.theme-toggle:hover {
  transform: none;
}

.theme-toggle-track {
  position: relative;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: var(--primary-color-soft);
  flex-shrink: 0;
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.18);
  transition: transform 0.18s ease;
}

.theme-toggle[aria-pressed="true"] .theme-toggle-thumb {
  transform: translateX(18px);
}

.theme-toggle[aria-pressed="true"] .theme-toggle-track {
  background: var(--primary-color-muted);
}

.theme-toggle-label {
  font-size: 0.84rem;
  font-weight: 700;
}

.profile-chip,
.compact-summary-chip,
.hint,
fieldset,
.meta-strip span,
.course-admin-cardline,
.builder-card,
.builder-subitem,
.compact-check,
.course-metrics div,
.toggle-grid label,
.certificate-meta div,
.certificate-qr-card,
.verification-card {
  background: var(--surface-subtle);
  border-color: var(--line);
}

.panel,
.hero-panel {
  background: var(--panel);
  border-color: var(--line);
  box-shadow: var(--shadow);
}

.summary-panel,
.login-panel,
.surface-card,
.metric-card,
.course-card,
.course-admin-card,
.bullet-card,
.nested-panel {
  background: var(--surface-subtle);
  border-color: var(--line);
}

.hero-panel::after {
  background: radial-gradient(circle, var(--primary-color-muted), transparent 70%);
}

input,
select,
textarea {
  border-color: var(--line);
  background: var(--input-bg);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary-color-muted);
  border-color: var(--primary-border-strong);
}

button,
.button {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  color: var(--primary-color-contrast);
}

.secondary {
  background: linear-gradient(135deg, var(--secondary-color-soft), var(--primary-color-soft));
  color: var(--secondary-contrast);
  border: 1px solid var(--primary-border);
}

.ghost-button {
  background: var(--surface-subtle);
  color: var(--text);
  border: 1px solid var(--line);
}

.danger-button {
  background: linear-gradient(135deg, #d24f4f, #991b1b);
  color: #fff;
}

.status-pill,
.badge {
  background: var(--primary-color-soft);
  color: var(--primary-color-strong);
}

.status-complete {
  background: var(--primary-color-muted);
  color: var(--primary-color-strong);
}

.status-active {
  background: var(--secondary-color-soft);
  color: var(--secondary-contrast);
}

.status-muted {
  background: var(--muted-soft);
  color: var(--muted);
}

.warning-pill {
  background: linear-gradient(135deg, var(--warning-soft), var(--warm-soft));
  color: var(--warning);
}

.warning-text {
  color: var(--warning);
}

.flash {
  border-color: var(--line);
}

.flash-error {
  background: var(--danger-soft);
  color: var(--danger);
}

.flash-success {
  background: var(--success-soft);
  color: var(--success);
}

table {
  background: var(--surface-subtle);
}

th,
td {
  border-bottom-color: var(--line);
}

th {
  background: var(--surface-strong);
}

.admin-shell {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin: 22px 0 0;
}

.admin-sidebar {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 16px;
  background: var(--surface-strong);
}

.admin-sidebar-head {
  display: grid;
  gap: 10px;
}

.admin-sidebar-title {
  margin: 0;
  font-family: "Shippori Mincho", serif;
  font-size: 1.28rem;
}

.admin-sidebar-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.admin-content {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-nav-group-label {
  margin-top: 6px;
  padding-left: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warm);
  font-weight: 700;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--surface-subtle);
  color: var(--text);
  font-weight: 700;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.admin-nav-link:hover {
  transform: translateX(2px);
  background: var(--primary-color-soft);
  border-color: var(--primary-border-strong);
}

.admin-nav-link.is-active {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-strong));
  border-color: transparent;
  color: var(--primary-color-contrast);
  box-shadow: 0 14px 28px var(--primary-shadow);
}

.admin-context-link {
  width: 100%;
}

.admin-context-stack {
  display: grid;
  gap: 8px;
}

.course-context-field {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(245, 252, 251, 0.78);
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.course-context-field span,
.course-context-field small {
  color: var(--muted);
}

.course-context-field span {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

.course-context-field strong {
  font-size: 1rem;
  line-height: 1.4;
}

.course-context-field small {
  font-size: 0.84rem;
  line-height: 1.55;
}

.workspace-settings-panel {
  display: grid;
  gap: 14px;
  padding: 18px 20px;
}

.workspace-toggle-bank {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.workspace-action-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.workspace-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  align-items: start;
}

.workspace-card {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.workspace-card .section-head {
  margin-bottom: 0;
}

.workspace-card-copy {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
}

.workspace-card .lesson-item {
  align-items: flex-start;
  padding: 12px 0;
}

@media (max-width: 1180px) {
  .admin-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .course-create-bar,
  .course-admin-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-admin-head {
    display: none;
  }

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

  .create-actions-cell,
  .course-actions-cell,
  .course-status-cell {
    grid-column: span 2;
  }
}

@media (max-width: 960px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
  }

  .login-hero,
  .course-hero,
  .admin-hero,
  .content-split {
    grid-template-columns: 1fr;
  }

  .bullet-grid,
  .stats-grid,
  .course-metrics,
  .toggle-grid {
    grid-template-columns: 1fr;
  }

  .lesson-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .compact-course-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .dashboard-summary-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .dashboard-courses-panel .section-note {
    white-space: normal;
  }

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

  .builder-subitem,
  .builder-subitem-keyword {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .certificate-proof,
  .certificate-verify-hero,
  .verification-grid,
  .certificate-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .topbar-inner,
  .topbar-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    width: 100%;
  }

  .admin-shell {
    gap: 16px;
  }

  .main-nav,
  .admin-nav-pills,
  .row,
  .action-stack {
    width: 100%;
  }

  .main-nav,
  .admin-nav-pills {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .main-nav a,
  .nav-pill,
  .profile-chip,
  .theme-toggle {
    width: 100%;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .video-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .list-filter-form {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .list-sort-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pagination-nav {
    justify-content: flex-start;
  }

  .compact-course-header,
  .compact-course-panel,
  .course-admin-cardline {
    padding-left: 14px;
    padding-right: 14px;
  }

  .login-card .card-body {
    padding: 20px 18px;
  }

  .login-tabs .nav-link {
    padding: 12px 10px;
    font-size: 0.92rem;
  }

  .dashboard-summary-meta,
  .card-grid-dense {
    grid-template-columns: 1fr;
  }

  .course-create-bar,
  .course-admin-row,
  .compact-toggle-bank,
  .workspace-toggle-bank,
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .create-actions-cell,
  .course-actions-cell,
  .course-status-cell {
    grid-column: span 1;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }

  .builder-meta-grid,
  .builder-subitem,
  .builder-subitem-keyword {
    grid-template-columns: 1fr;
  }

  .dt-container .dt-layout-row,
  .dt-container .dt-layout-cell {
    flex-direction: column;
    align-items: stretch;
  }

  .dt-container .dt-search label,
  .dt-container .dt-length label {
    display: grid;
  }

  .user-meta-list {
    grid-template-columns: 1fr;
  }

  .builder-card-head,
  .builder-toolbar {
    align-items: stretch;
  }

  .course-action-group .button,
  .course-action-group .ghost-button,
  .course-action-group button,
  .row .button,
  .row .ghost-button,
  .row button,
  .action-stack .button,
  .action-stack .ghost-button,
  .action-stack button,
  .lesson-actions .button,
  .lesson-actions .ghost-button,
  .lesson-actions button {
    width: 100%;
  }

  .certificate-sheet {
    padding: 18px;
  }

  .certificate-frame {
    padding: 24px 18px;
    min-height: auto;
  }
}

@media print {
  body {
    background: #fff;
  }

  .page-orb,
  .topbar,
  .flash-list,
  .print-actions {
    display: none !important;
  }

  .container,
  .site-main {
    width: auto;
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .hero-panel,
  .panel,
  .summary-panel,
  .surface-card,
  .certificate-frame {
    box-shadow: none;
    backdrop-filter: none;
  }

  .certificate-hero {
    margin-bottom: 12px;
  }

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

  .certificate-layout > .stack-column {
    display: none;
  }

  .certificate-sheet,
  .certificate-frame {
    border: 0;
    margin: 0;
  }
}