:root {
  --bg: #dce7f5;
  --paper: rgba(248, 251, 255, 0.92);
  --paper-strong: #ffffff;
  --ink: #142437;
  --muted: #4a6178;
  --line: rgba(20, 36, 55, 0.12);
  --cold: #1f4f89;
  --cold-soft: #5f87ba;
  --wire: #5b77a5;
  --signal: #e3bd3f;
  --shadow: 0 24px 60px rgba(20, 36, 55, 0.16);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 15%, rgba(31, 79, 137, 0.18), transparent 0 24%),
    radial-gradient(circle at 88% 12%, rgba(227, 189, 63, 0.18), transparent 0 20%),
    linear-gradient(180deg, #eff5fb 0%, #dbe7f5 48%, #c8d7e9 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 14%, rgba(47, 93, 115, 0.03) 14% 14.4%, transparent 14.4% 50%, rgba(106, 52, 40, 0.03) 50% 50.4%, transparent 50.4%),
    repeating-linear-gradient(
      120deg,
      transparent 0 88px,
      rgba(28, 24, 21, 0.025) 88px 91px,
      transparent 91px 182px
    );
}

h1,
h2,
h3,
h4 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  letter-spacing: -0.03em;
}

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

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 1360px;
  margin: 0 auto;
  padding: 28px;
}

.panel {
  background: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(420px, 0.78fr);
  gap: 18px;
  padding: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--wire);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 800;
}

.hero h1 {
  margin: 0;
  max-width: 10ch;
  font-size: clamp(3rem, 7vw, 5.7rem);
  line-height: 0.92;
}

.lead {
  max-width: 60ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  font-weight: 800;
}

.btn.primary {
  color: #fffaf4;
  background: linear-gradient(135deg, var(--wire), var(--signal));
}

.btn.ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
}

.btn.small {
  padding: 10px 14px;
  font-size: 0.95rem;
}

.btn.is-active {
  color: #fffaf4;
  background: linear-gradient(135deg, var(--cold), var(--cold-soft));
  border: none;
}

.hero-note {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 10px;
  align-content: start;
}

.hero-image-card {
  margin: 0;
  min-height: 404px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(22, 32, 42, 0.14);
  background: rgba(255, 255, 255, 0.84);
  box-shadow:
    0 22px 40px rgba(18, 29, 39, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.hero-image-card img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 404px;
  object-fit: cover;
  object-position: 82% 42%;
}

.note-card {
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(42, 90, 116, 0.08), rgba(255, 255, 255, 0.82));
  border: 1px solid rgba(22, 32, 42, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.note-label {
  margin: 0 0 6px;
  font-weight: 800;
  color: var(--cold);
}

.note-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.58;
}

.hero-quote-card {
  display: grid;
  gap: 6px;
}

.hero-quote-line {
  margin: 0;
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.12rem;
  line-height: 1.35;
}

.hero-quote-source {
  margin: 4px 0 0;
  color: var(--wire);
  font-size: 0.92rem;
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 22px;
  margin-top: 22px;
}

.teacher-access-panel {
  margin-top: 22px;
  padding: 26px;
}

.teacher-access-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: start;
}

.teacher-access-form {
  display: grid;
  gap: 12px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.teacher-access-form label {
  font-weight: 800;
}

.teacher-access-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(53, 41, 32, 0.18);
  background: rgba(255, 255, 255, 0.92);
}

.teacher-access-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.teacher-access-status {
  min-height: 1.5rem;
  margin: 0;
  color: var(--wire);
  font-weight: 700;
}

.teacher-access-status-card {
  grid-template-columns: minmax(0, 1fr) auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.78), rgba(234, 225, 214, 0.7));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.stat-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.9rem;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.94rem;
}

.legend-card {
  padding: 22px;
}

.legend-list {
  display: grid;
  gap: 14px;
}

.legend-list p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.legend-chip {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 800;
}

.legend-fact {
  background: rgba(47, 93, 115, 0.14);
  color: var(--cold);
}

.legend-compare {
  background: rgba(193, 130, 66, 0.18);
  color: #8a541f;
}

.legend-transfer {
  background: rgba(106, 52, 40, 0.14);
  color: var(--wire);
}

.workspace {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 22px;
  margin-top: 22px;
  align-items: start;
}

.module-rail {
  position: sticky;
  top: 18px;
  padding: 22px;
}

.rail-head h2 {
  margin: 0 0 12px;
  font-size: 1.7rem;
}

.module-nav {
  display: grid;
  gap: 12px;
}

.module-button {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: left;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.module-button:disabled {
  cursor: not-allowed;
  opacity: 0.8;
}

.module-button:hover,
.module-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(47, 93, 115, 0.3);
}

.module-button.active {
  background: linear-gradient(135deg, rgba(47, 93, 115, 0.14), rgba(255, 255, 255, 0.78));
  border-color: rgba(47, 93, 115, 0.26);
}

.module-button.locked {
  background: linear-gradient(135deg, rgba(28, 24, 21, 0.04), rgba(255, 255, 255, 0.76));
  border-style: dashed;
}

.module-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  margin-right: 10px;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--paper-strong);
  background: linear-gradient(135deg, var(--cold), var(--cold-soft));
}

.module-button h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.module-button p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.94rem;
}

.module-button-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.85rem;
}

.focus-column {
  display: grid;
  gap: 22px;
}

.module-header {
  padding: 28px;
}

.module-title-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.module-title-row h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.module-kicker {
  display: inline-flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.module-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(47, 93, 115, 0.1);
  color: var(--cold);
  font-size: 0.9rem;
  font-weight: 700;
}

.module-meta-card {
  min-width: 220px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(193, 130, 66, 0.14), rgba(255, 255, 255, 0.76));
  border: 1px solid var(--line);
}

.module-meta-card strong {
  display: block;
  margin-bottom: 8px;
}

.module-copy,
.module-list li,
.section-copy,
.resource-card p,
.feedback-body,
.question-help,
.model-answer,
.resource-meta,
.audio-card p {
  color: var(--muted);
  line-height: 1.72;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.module-visual {
  margin: 22px 0 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
}

.module-visual img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  object-position: center top;
  background: rgba(241, 236, 228, 0.95);
}

.module-box {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.module-box h3 {
  margin: 0 0 10px;
}

.module-box-wide {
  grid-column: 1 / -1;
}

.kappeler-panel {
  margin-top: 22px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31, 79, 137, 0.18);
  background: linear-gradient(140deg, rgba(31, 79, 137, 0.08), rgba(255, 255, 255, 0.86));
}

.kappeler-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.kappeler-head h3 {
  margin: 0;
  font-size: 1.45rem;
}

.kappeler-workflow {
  display: grid;
  gap: 14px;
}

.kappeler-step-card {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.3fr);
  gap: 18px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
}

.kappeler-label {
  grid-column: 1 / -1;
  margin: 0 0 -6px;
  color: var(--wire);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kappeler-quote {
  margin: 0;
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.12rem;
  line-height: 1.42;
}

.kappeler-page {
  margin: 8px 0 0;
  color: var(--wire);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.kappeler-step-copy {
  display: grid;
  gap: 8px;
}

.kappeler-step-copy h4 {
  margin: 0;
  font-size: 1rem;
}

.kappeler-step-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.kappeler-resource-list {
  display: grid;
  gap: 8px;
  margin-top: 4px;
}

.kappeler-resource-link {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(31, 79, 137, 0.16);
  background: rgba(31, 79, 137, 0.07);
  color: var(--ink);
  text-decoration: none;
}

.kappeler-resource-link span {
  color: var(--wire);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kappeler-resource-link strong {
  font-size: 0.94rem;
  line-height: 1.35;
}

.kappeler-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

.mini-checks-box {
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.8), rgba(213, 203, 188, 0.3));
}

.mini-checks-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.mini-checks-status {
  min-width: 170px;
  margin: 0;
  color: var(--cold);
  font-weight: 800;
  text-align: right;
}

.mini-check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.mini-check-button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  cursor: pointer;
  text-align: left;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.mini-check-button:hover,
.mini-check-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(47, 93, 115, 0.24);
}

.mini-check-button.is-solved {
  background: rgba(47, 93, 115, 0.1);
  border-color: rgba(47, 93, 115, 0.22);
}

.mini-check-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(47, 93, 115, 0.12);
  color: var(--cold);
  font-size: 0.92rem;
  font-weight: 800;
}

.mini-check-copy {
  display: grid;
  gap: 4px;
}

.mini-check-copy strong {
  font-size: 1rem;
}

.mini-check-copy span {
  color: var(--muted);
  font-size: 0.88rem;
}

.film-module-box {
  background: linear-gradient(140deg, rgba(47, 93, 115, 0.12), rgba(255, 255, 255, 0.88));
  border-color: rgba(47, 93, 115, 0.18);
}

.film-module-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.film-module-status {
  min-width: 170px;
  margin: 0;
  color: var(--cold);
  font-weight: 800;
  text-align: right;
}

.film-module-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.film-preview-chip {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
}

.film-preview-chip strong {
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.film-preview-chip span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.film-preview-task {
  margin: 8px 0 0;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.focus-gallery {
  margin-top: 22px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.78), rgba(213, 203, 188, 0.34));
}

.focus-gallery-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.focus-gallery-head h3 {
  margin: 0;
  font-size: 1.45rem;
}

.focus-gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.focus-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
}

.focus-card.image-missing {
  display: block;
}

.focus-card-image {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: contain;
  object-position: center top;
  background: rgba(241, 236, 228, 0.95);
}

.focus-card-copy {
  padding: 16px;
}

.focus-card-copy h4 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.focus-card-caption {
  margin: 0 0 8px;
  color: var(--wire);
  font-weight: 700;
}

.actor-panel {
  margin-top: 22px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.74), rgba(229, 221, 208, 0.46));
}

.actor-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.actor-panel-head h3 {
  margin: 0;
  font-size: 1.45rem;
}

.actor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.actor-card {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
}

.actor-card.image-missing {
  grid-template-columns: 1fr;
}

.actor-image {
  width: 116px;
  height: 146px;
  object-fit: contain;
  object-position: center top;
  border-radius: 14px;
  border: 1px solid rgba(28, 24, 21, 0.08);
  background: rgba(241, 236, 228, 0.95);
}

.actor-copy h4 {
  margin: 0 0 6px;
  font-size: 1.08rem;
}

.actor-copy p {
  margin: 0;
}

.actor-role {
  margin-bottom: 10px !important;
  color: var(--wire);
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.module-list {
  margin: 0;
  padding-left: 18px;
}

.teacher-panel {
  padding: 26px;
}

.teacher-details {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  padding: 0;
}

.teacher-details summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-size: 1.05rem;
  font-weight: 800;
}

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

.teacher-details-body {
  padding: 0 0 4px;
}

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.teacher-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(47, 93, 115, 0.08), rgba(255, 255, 255, 0.78));
}

.teacher-card h3 {
  margin: 0 0 10px;
}

.teacher-card p,
.teacher-card li,
.teacher-map-card p,
.teacher-map-card li,
.feedback-breakdown li,
.teacher-inline p {
  color: var(--muted);
  line-height: 1.68;
}

.teacher-map {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.teacher-map-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.teacher-map-card h4,
.teacher-inline h4 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.teacher-inline {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(47, 93, 115, 0.06);
  border: 1px solid rgba(47, 93, 115, 0.14);
}

.teacher-inline p {
  margin: 8px 0 0;
}

.feedback-breakdown {
  margin: 12px 0 0;
  padding-left: 18px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 18px;
  padding: 26px 26px 0;
}

.section-head h2 {
  margin: 0;
  font-size: 2rem;
}

.section-copy {
  max-width: 32rem;
  margin: 0;
}

.resource-groups {
  display: grid;
  gap: 18px;
  padding: 0 26px 26px;
}

.resource-group {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.74), rgba(229, 221, 208, 0.46));
}

.resource-group h3 {
  margin: 0 0 8px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.resource-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
}

.resource-card.image-missing {
  padding-top: 18px;
}

.resource-image-link {
  display: block;
  margin: -2px -2px 14px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(28, 24, 21, 0.08);
}

.resource-image {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: contain;
  object-position: center top;
  background: rgba(241, 236, 228, 0.95);
}

.resource-card h4 {
  margin: 0;
  font-size: 1.15rem;
}

.resource-note {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.resource-note strong {
  color: var(--ink);
}

.resource-type-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(28, 24, 21, 0.06);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.resource-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.audio-frame {
  width: 100%;
  margin-top: 14px;
}

.question-list {
  display: grid;
  gap: 18px;
  padding: 0 26px 26px;
}

.question-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
}

.question-card.mastered {
  border-color: rgba(47, 93, 115, 0.28);
  box-shadow: inset 0 0 0 1px rgba(47, 93, 115, 0.08);
}

.question-card.locked {
  background: linear-gradient(135deg, rgba(28, 24, 21, 0.05), rgba(255, 255, 255, 0.62));
}

.question-topline {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.question-card h3 {
  margin: 8px 0 10px;
  font-size: 1.3rem;
}

.question-type {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(106, 52, 40, 0.1);
  color: var(--wire);
  font-size: 0.84rem;
  font-weight: 800;
}

.question-score {
  min-width: 84px;
  text-align: right;
  color: var(--cold);
  font-weight: 800;
}

.source-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 14px 0 0;
}

.source-chip {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(47, 93, 115, 0.1);
  color: var(--cold);
  font-size: 0.82rem;
}

.option-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.drag-order {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.drag-card {
  display: grid;
  grid-template-columns: auto 132px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  cursor: grab;
}

.drag-card.image-missing {
  grid-template-columns: auto minmax(0, 1fr) auto;
}

.drag-image {
  width: 132px;
  height: 92px;
  object-fit: contain;
  object-position: center top;
  border-radius: 12px;
  border: 1px solid rgba(28, 24, 21, 0.08);
  background: rgba(241, 236, 228, 0.95);
}

.drag-card.dragging {
  opacity: 0.55;
  cursor: grabbing;
  border-color: rgba(47, 93, 115, 0.28);
}

.drag-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(47, 93, 115, 0.12);
  color: var(--cold);
  font-size: 0.88rem;
  font-weight: 800;
}

.drag-copy strong {
  display: block;
}

.drag-copy p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.drag-handle {
  color: var(--muted);
  font-weight: 800;
  letter-spacing: 0.12em;
}

.option-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.answer-field {
  width: 100%;
  min-height: 54px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(53, 41, 32, 0.18);
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  resize: vertical;
}

.answer-field.large {
  min-height: 180px;
}

.question-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.question-help {
  margin: 12px 0 0;
  font-size: 0.94rem;
}

.feedback-box {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid transparent;
}

.feedback-box.neutral {
  background: rgba(28, 24, 21, 0.04);
  border-color: rgba(28, 24, 21, 0.06);
}

.feedback-box.success {
  background: rgba(47, 93, 115, 0.1);
  border-color: rgba(47, 93, 115, 0.18);
}

.feedback-box.warn {
  background: rgba(193, 130, 66, 0.14);
  border-color: rgba(193, 130, 66, 0.24);
}

.feedback-box.error {
  background: rgba(106, 52, 40, 0.12);
  border-color: rgba(106, 52, 40, 0.18);
}

.feedback-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 10px;
  font-weight: 800;
}

.feedback-list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

details {
  margin-top: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid var(--line);
  padding: 12px 14px;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

.model-answer {
  margin-top: 12px;
  white-space: pre-line;
}

.mini-question-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
}

.mini-question-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 24, 21, 0.44);
  backdrop-filter: blur(4px);
}

.mini-question-dialog {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  margin: 16px auto;
  overflow: auto;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.74);
  background: var(--paper-strong);
  box-shadow: 0 36px 100px rgba(20, 14, 10, 0.3);
}

.mini-question-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  padding: 24px 24px 0;
}

.mini-question-header h3 {
  margin: 0;
  font-size: 1.9rem;
}

.mini-question-body {
  padding: 0 24px 24px;
}

.mini-question-topline h4 {
  margin: 8px 0 10px;
  font-size: 1.28rem;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  letter-spacing: -0.03em;
}

.mini-question-close {
  flex-shrink: 0;
}

.source-modal {
  position: fixed;
  inset: 0;
  z-index: 39;
}

.source-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 24, 21, 0.4);
  backdrop-filter: blur(4px);
}

.source-modal-dialog {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  margin: 16px auto;
  overflow: auto;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.74);
  background: var(--paper-strong);
  box-shadow: 0 36px 100px rgba(20, 14, 10, 0.3);
}

.source-modal-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  padding: 24px 24px 0;
}

.source-modal-header h3 {
  margin: 0;
  font-size: 1.9rem;
}

.source-modal-body {
  display: grid;
  gap: 18px;
  padding: 0 24px 24px;
}

.source-modal-group {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.78), rgba(229, 221, 208, 0.4));
}

.source-modal-group h4,
.source-modal-card h5 {
  margin: 0;
}

.source-modal-group-emphasis {
  background: linear-gradient(140deg, rgba(47, 93, 115, 0.12), rgba(255, 255, 255, 0.84));
  border-color: rgba(47, 93, 115, 0.16);
}

.film-modal-grid,
.source-modal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.source-modal-card {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
}

.film-modal-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(231, 239, 242, 0.88));
  border-color: rgba(47, 93, 115, 0.18);
}

.linked-question-block {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(53, 41, 32, 0.12);
}

.linked-question-title {
  margin: 0 0 10px;
  color: var(--ink);
  font-weight: 800;
}

.linked-question-grid {
  display: grid;
  gap: 10px;
}

.linked-question-chip {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  cursor: pointer;
  text-align: left;
}

.linked-question-chip strong {
  color: var(--wire);
  font-size: 0.92rem;
}

.linked-question-chip span {
  color: var(--muted);
  line-height: 1.45;
}

.source-modal-details {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--line);
  padding: 0 0 6px;
}

.source-modal-details summary {
  padding: 16px 18px;
}

.source-modal-details .source-modal-group {
  margin: 0 12px 12px;
}

.audio-panel {
  margin-top: 22px;
}

.audio-lounge {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 0 26px 26px;
}

.audio-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(47, 93, 115, 0.08), rgba(255, 255, 255, 0.8));
}

.audio-card h3 {
  margin: 0 0 10px;
}

.audio-card audio {
  width: 100%;
  margin-top: 14px;
}

@media (max-width: 1100px) {
  .hero,
  .dashboard,
  .workspace,
  .teacher-access-wrap,
  .teacher-access-status-card {
    grid-template-columns: 1fr;
  }

  .module-rail {
    position: static;
  }

  .stats-grid,
  .resource-grid,
  .module-grid,
  .teacher-grid,
  .film-module-preview {
    grid-template-columns: 1fr 1fr;
  }

  .kappeler-step-card {
    grid-template-columns: 1fr;
  }

  .module-title-row,
  .section-head,
  .question-topline,
  .focus-gallery-head,
  .kappeler-head,
  .actor-panel-head,
  .mini-checks-head,
  .film-module-head,
  .mini-question-header,
  .source-modal-header {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 16px;
  }

  .hero,
  .teacher-access-panel,
  .module-header,
  .section-head,
  .resource-groups,
  .question-list {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    padding-top: 22px;
    padding-bottom: 22px;
  }

  .hero-note {
    grid-template-rows: auto;
  }

  .hero-image-card,
  .hero-image-card img {
    min-height: 260px;
  }

  .stats-grid,
  .resource-grid,
  .module-grid,
  .focus-gallery-grid,
  .teacher-grid,
  .actor-grid,
  .mini-check-grid,
  .film-module-preview,
  .film-modal-grid,
  .source-modal-grid {
    grid-template-columns: 1fr;
  }

  .actor-card {
    grid-template-columns: 1fr;
  }

  .actor-image {
    width: 100%;
    max-width: 220px;
    height: 220px;
  }

  .hero-actions,
  .resource-actions,
  .question-actions,
  .teacher-access-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .drag-card {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .drag-index {
    grid-row: 1 / 2;
  }

  .drag-image {
    grid-column: 2 / 3;
    width: 100%;
    max-width: 220px;
    height: 118px;
  }

  .drag-copy {
    grid-column: 2 / 3;
  }

  .drag-handle {
    grid-column: 3 / 4;
    grid-row: 1 / 3;
  }

  .mini-question-dialog {
    width: min(760px, calc(100vw - 20px));
    max-height: calc(100vh - 20px);
    margin: 10px auto;
  }

  .source-modal-dialog {
    width: min(980px, calc(100vw - 20px));
    max-height: calc(100vh - 20px);
    margin: 10px auto;
  }

  .mini-question-header,
  .mini-question-body,
  .source-modal-header,
  .source-modal-body {
    padding-left: 18px;
    padding-right: 18px;
  }
}