:root {
  --bg: #f3eee6;
  --bg-accent: #ebe2d6;
  --surface: rgba(252, 248, 242, 0.82);
  --surface-strong: #fcf8f2;
  --surface-muted: #efe5d8;
  --text: #25211d;
  --text-soft: #62584d;
  --text-faint: #8b7e70;
  --line: rgba(37, 33, 29, 0.1);
  --accent: #355648;
  --accent-strong: #244036;
  --accent-soft: rgba(53, 86, 72, 0.14);
  --warn: #a67d43;
  --warn-soft: rgba(166, 125, 67, 0.12);
  --danger: #8b4c42;
  --danger-soft: rgba(139, 76, 66, 0.1);
  --success: #5c7b62;
  --success-soft: rgba(92, 123, 98, 0.12);
  --shadow: 0 20px 60px rgba(62, 47, 31, 0.08);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --content-width: 1240px;
  --reading-width: 760px;
  --ease: 240ms ease;
  font-synthesis-weight: none;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.7), transparent 26%),
    radial-gradient(circle at right 20%, rgba(53, 86, 72, 0.08), transparent 18%),
    linear-gradient(180deg, var(--bg) 0%, #f7f3ec 100%);
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI Variable Text", Aptos, "Trebuchet MS", sans-serif;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 33, 29, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 33, 29, 0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 80%);
  pointer-events: none;
}

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

button {
  cursor: pointer;
}

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

img {
  max-width: 100%;
  display: block;
}

#app {
  position: relative;
  z-index: 1;
}

.page-shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
}

.fade-in {
  animation: fadeIn 320ms var(--ease);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(243, 238, 230, 0.72);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--accent) 0%, #6b8a7d 100%);
  color: #f8f4ee;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.brand-copy small {
  display: block;
  color: var(--text-soft);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links,
.subnav-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-link,
.subnav-link {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  transition: background var(--ease), color var(--ease), transform var(--ease);
}

.nav-link:hover,
.subnav-link:hover,
.nav-link.active,
.subnav-link.active {
  background: rgba(255, 255, 255, 0.6);
  color: var(--text);
  transform: translateY(-1px);
}

.app-layout {
  padding: 28px 0 56px;
}

.hero {
  padding: 72px 0 48px;
  display: grid;
  gap: 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--text-soft);
  border: 1px solid rgba(255, 255, 255, 0.65);
  width: fit-content;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero h1,
.display-title,
.panel-title {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  letter-spacing: -0.02em;
  margin: 0;
}

.hero h1 {
  font-size: clamp(2.9rem, 8vw, 5.6rem);
  line-height: 0.96;
}

.hero p {
  max-width: 64ch;
  margin: 0;
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-actions,
.inline-actions,
.form-actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.proof-strip,
.panel,
.metric-card,
.lesson-list-item,
.card,
.form-panel,
.status-panel,
.empty-state,
.exercise-card,
.skill-card,
.unit-card,
.code-card,
.processing-stage,
.quote-panel {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  border-radius: var(--radius-lg);
  padding: 20px;
}

.proof-item strong,
.metric-card strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.proof-item span,
.metric-card span,
.kicker,
.supporting-copy,
.meta,
.text-soft {
  color: var(--text-soft);
}

.panel,
.form-panel,
.status-panel,
.empty-state,
.card,
.quote-panel {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.quote-panel {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.75), rgba(255, 248, 239, 0.88)),
    var(--surface);
}

.quote-panel blockquote {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  font-size: 1.5rem;
  line-height: 1.45;
}

.quote-panel footer {
  margin-top: 18px;
  color: var(--text-soft);
}

.button,
.button-secondary,
.button-ghost,
.button-danger {
  border: 0;
  padding: 13px 18px;
  border-radius: 999px;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease);
}

.button {
  background: var(--accent);
  color: #f8f4ee;
  box-shadow: 0 12px 30px rgba(36, 64, 54, 0.2);
}

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

.button-secondary {
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  border: 1px solid var(--line);
}

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

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

.button[disabled],
.button-secondary[disabled],
.button-ghost[disabled],
.button-danger[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.grid,
.dashboard-grid,
.library-grid,
.admin-grid,
.lesson-layout,
.auth-grid,
.dual-grid {
  display: grid;
  gap: 20px;
}

.dashboard-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  align-items: start;
}

.library-grid,
.admin-grid {
  grid-template-columns: minmax(0, 1fr);
}

.auth-grid {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: start;
}

.lesson-layout {
  grid-template-columns: minmax(0, var(--reading-width)) minmax(280px, 360px);
  gap: 28px;
  align-items: start;
}

.panel-header,
.section-header,
.list-header,
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1,
.page-header h2,
.panel-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.02;
}

.page-header p,
.panel p,
.form-panel p,
.section-copy,
.lesson-copy,
.meta-line,
.copy-block p {
  color: var(--text-soft);
  line-height: 1.7;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.metric-card {
  border-radius: 24px;
  padding: 18px;
}

.form-stack,
.stack,
.auth-form,
.field-grid {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

label.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: normal;
  color: var(--text-soft);
  font-size: 0.95rem;
}

/* Reset global input styles for checkboxes and radios */
input[type="checkbox"],
input[type="radio"] {
  width: 16px;
  height: 16px;
  min-width: 16px;
  padding: 0;
  border: none;
  border-radius: 3px;
  background: transparent;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--accent);
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(37, 33, 29, 0.12);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
  outline: none;
  transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(53, 86, 72, 0.6);
  box-shadow: 0 0 0 4px rgba(53, 86, 72, 0.12);
  background: #fff;
}

.helper-text,
.field-note {
  color: var(--text-faint);
  font-size: 0.9rem;
  line-height: 1.5;
}

.callout,
.status-callout,
.alert {
  border-radius: 18px;
  padding: 14px 16px;
  border: 1px solid transparent;
}

.callout,
.status-callout.info {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

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

.alert.error,
.status-callout.error {
  background: var(--danger-soft);
  color: var(--danger);
}

.alert.success,
.status-callout.success {
  background: var(--success-soft);
  color: var(--success);
}

.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  font-size: 0.84rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.lesson-list,
.skill-list,
.unit-list,
.code-list,
.processing-list,
.section-list,
.exercise-list,
.call-session-list,
.transcript-list,
.timeline-list,
.event-rail {
  display: grid;
  gap: 14px;
}

.lesson-list-item,
.skill-card,
.unit-card,
.code-card,
.processing-stage,
.exercise-card {
  border-radius: 24px;
  padding: 20px;
}

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

.lesson-list-item header,
.skill-card header,
.unit-card header,
.code-card header,
.exercise-card header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.badge-row,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge,
.tag,
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(37, 33, 29, 0.08);
  color: var(--text-soft);
  font-size: 0.86rem;
}

.pill-accent {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.loading-stage {
  min-height: 50vh;
  display: grid;
  place-items: center;
}

.loading-panel {
  width: min(100%, 720px);
  text-align: center;
  padding: 34px;
}

.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.45) 50%, transparent 80%);
  animation: shimmer 1.8s linear infinite;
}

@keyframes shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

.lesson-content {
  display: grid;
  gap: 18px;
}

.lesson-article {
  padding: 28px;
  border-radius: 30px;
  background: rgba(252, 248, 242, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.lesson-article h2,
.lesson-article h3,
.markdown-block h2,
.markdown-block h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  letter-spacing: -0.015em;
}

.lesson-article p,
.markdown-block p,
.markdown-block li {
  line-height: 1.8;
  color: var(--text-soft);
}

.markdown-block {
  display: grid;
  gap: 14px;
}

.markdown-block img {
  width: 100%;
  border-radius: 24px;
  margin: 18px 0;
  box-shadow: 0 12px 30px rgba(62, 47, 31, 0.1);
}

.markdown-block ul,
.markdown-block ol {
  padding-left: 20px;
  margin: 0;
}

.lesson-sidebar {
  position: sticky;
  top: 102px;
  display: grid;
  gap: 16px;
}

.section-anchor {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  padding: 12px 14px;
  border-radius: 16px;
  color: var(--text-soft);
}

.section-anchor.active,
.section-anchor:hover {
  background: rgba(255, 255, 255, 0.74);
  border-color: rgba(37, 33, 29, 0.06);
  color: var(--text);
}

.exercise-card details {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 12px;
}

.exercise-card summary {
  cursor: pointer;
  color: var(--accent-strong);
}

/* Progress status badges */
.badge.pill-warn {
  background: var(--warn-soft);
  color: var(--warn);
}

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

/* Quiz list */
.quiz-list {
  display: grid;
  gap: 16px;
}

/* Quiz card */
.quiz-card {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px;
  display: grid;
  gap: 14px;
}

.quiz-card--passed {
  border-color: var(--success);
  background: var(--success-soft);
}

.quiz-question {
  font-size: 1.05rem;
  font-weight: 500;
  margin: 0;
}

.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--ease);
}

.quiz-choice input[type="radio"],
.quiz-choice input[type="checkbox"] {
  flex-shrink: 0;
  margin: 0;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.quiz-choice:hover:not(.disabled) {
  background: var(--accent-soft);
}

.quiz-choice.disabled {
  cursor: default;
  opacity: 0.75;
}

.quiz-feedback {
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 12px;
  background: var(--danger-soft);
  border-radius: var(--radius-sm);
}

/* Library list: series groups + standalone cards */
.library-list {
  display: grid;
  gap: 12px;
}

.series-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  overflow: hidden;
}

.series-summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  user-select: none;
}

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

.series-summary-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.series-summary-inner strong {
  font-size: 1rem;
}

.series-group[open] .series-summary {
  border-bottom: 1px solid var(--line);
}

.series-lessons {
  padding: 12px;
  display: grid;
  gap: 8px;
}

.series-lessons .lesson-list-item {
  border-radius: var(--radius-md);
}

/* Series navigation in sidebar */
.series-nav .section-anchor {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
  color: inherit;
}

.series-nav .section-anchor .badge {
  align-self: flex-start;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.compact-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.data-item {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(37, 33, 29, 0.08);
}

.data-item strong {
  display: block;
  margin-bottom: 6px;
}

.file-drop {
  padding: 22px;
  border: 1px dashed rgba(37, 33, 29, 0.2);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.38);
}

.image-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.image-strip img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.6);
}

.gateway-image-loading {
  opacity: 0.55;
}

.gateway-image-error {
  min-height: 120px;
  background: var(--danger-soft);
}

.call-session-card,
.call-summary-card,
.timeline-point,
.analysis-point,
.transcript-item,
.event-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.call-session-card,
.call-summary-card {
  padding: 22px;
}

.call-session-card header,
.timeline-point header,
.analysis-point header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.call-detail-grid,
.live-call-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.live-focus-panel,
.live-transcript-panel {
  display: grid;
  gap: 16px;
}

.live-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  color: var(--text-soft);
}

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

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

.state-meters {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.state-meter {
  padding: 14px 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
}

.state-meter-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.state-meter-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(37, 33, 29, 0.08);
  overflow: hidden;
}

.state-meter-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #5f7f71, var(--accent));
}

.transcript-item,
.timeline-point,
.analysis-point,
.event-card {
  padding: 16px 18px;
}

.transcript-realtor {
  border-left: 4px solid var(--accent);
}

.transcript-client {
  border-left: 4px solid var(--warn);
}

.metric-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  color: var(--text-soft);
  margin-top: 10px;
}

.audio-player {
  width: 100%;
  margin-top: 12px;
}

.event-card.info {
  background: var(--accent-soft);
}

.event-card.error {
  background: var(--danger-soft);
}

.event-card.duration_warning,
.event-card.limit_exceeded {
  background: var(--warn-soft);
}

.empty-state {
  text-align: center;
}

.footer-note {
  margin-top: 28px;
  color: var(--text-faint);
  font-size: 0.92rem;
}

.hide-mobile {
  display: initial;
}

@media (max-width: 980px) {
  .hero-grid,
  .dashboard-grid,
  .auth-grid,
  .lesson-layout,
  .call-detail-grid,
  .live-call-grid {
    grid-template-columns: 1fr;
  }

  .lesson-sidebar {
    position: static;
    order: -1;
  }

  .proof-strip {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .hide-mobile {
    display: none;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--content-width));
  }

  .hero {
    padding: 48px 0 36px;
  }

  .panel,
  .form-panel,
  .status-panel,
  .empty-state,
  .card,
  .quote-panel,
  .lesson-article {
    padding: 20px;
  }

  .page-header h1,
  .page-header h2,
  .panel-title {
    font-size: 2.1rem;
  }

  .hero h1 {
    font-size: 3rem;
  }
}

/* --- Call Practice Section --- */
.call-difficulty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.call-difficulty-card {
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface, #fff);
}

.call-difficulty-card--passed {
  border-color: var(--success, #22c55e);
  background: color-mix(in srgb, var(--success, #22c55e) 6%, white);
}

.call-difficulty-card--locked {
  opacity: 0.6;
  background: var(--surface-dim, #f9fafb);
}

.call-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.call-card-label {
  font-weight: 600;
  font-size: 1rem;
}

.call-card-meta {
  font-size: 0.85rem;
  margin: 0;
}

.call-card-hint {
  font-size: 0.82rem;
  margin: 0;
}

@media (max-width: 768px) {
  .call-difficulty-grid {
    grid-template-columns: 1fr;
  }
}