:root {
  --bg: #f4efe4;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --text: #15333d;
  --muted: #58727a;
  --accent: #1d6d86;
  --accent-soft: #c6e5eb;
  --border: rgba(21, 51, 61, 0.12);
  --shadow: 0 18px 45px rgba(20, 42, 49, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(29, 109, 134, 0.16), transparent 30%),
    radial-gradient(circle at top right, rgba(184, 111, 74, 0.16), transparent 28%),
    linear-gradient(180deg, #f9f3ea 0%, var(--bg) 100%);
}

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

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

.app-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

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

.topbar h1 {
  margin: 4px 0 0;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--muted);
}

.status-chip {
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.nav-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.nav-tabs a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid var(--border);
}

.app-main {
  display: grid;
  gap: 20px;
}

.panel {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.panel h2,
.panel h3 {
  margin-top: 0;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.panel strong {
  display: block;
  margin-bottom: 8px;
}

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

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}

.button {
  color: white;
  background: linear-gradient(135deg, #1d6d86, #12485a);
}

.button-secondary {
  color: var(--text);
  background: var(--accent-soft);
}

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

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.92rem;
  color: var(--muted);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--panel-strong);
}

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

.session-card {
  display: grid;
  gap: 4px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(29, 109, 134, 0.14);
  color: var(--accent);
  font-size: 0.84rem;
}

.capture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.capture-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.capture-panel-header h3 {
  margin: 0;
}

.capture-panel-header .muted {
  margin: 0;
}

.capture-controls {
  display: grid;
  gap: 12px;
}

.capture-camera-field {
  display: grid;
  gap: 6px;
}

.capture-button-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.capture-button-grid .button,
.capture-button-grid .button-secondary {
  width: 100%;
}

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

.metric-card-compact {
  padding: 12px;
}

.metric-card-compact strong {
  margin-bottom: 6px;
}

.capture-message-stack {
  display: grid;
  gap: 8px;
}

.capture-sample-strip {
  display: grid;
  gap: 8px;
}

.capture-sample-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.capture-sample-header strong {
  margin: 0;
}

.capture-sample-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(112px, 1fr);
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.capture-sample-card {
  display: grid;
  gap: 6px;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.82);
}

.capture-sample-card.accepted {
  border-color: rgba(29, 109, 134, 0.24);
}

.capture-sample-card.rejected {
  border-color: rgba(184, 111, 74, 0.24);
}

.capture-sample-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: 12px;
  background: rgba(198, 229, 235, 0.42);
}

.capture-sample-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.capture-sample-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
}

.capture-sample-badge.accepted {
  background: rgba(29, 109, 134, 0.14);
  color: var(--accent);
}

.capture-sample-badge.rejected {
  background: rgba(184, 111, 74, 0.14);
  color: #8a5437;
}

.capture-sample-score,
.capture-sample-reason {
  font-size: 0.78rem;
  color: var(--muted);
}

.capture-sample-reason {
  line-height: 1.35;
}

.capture-save-copy {
  font-size: 0.92rem;
}

.video-shell {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 320px;
  background: linear-gradient(160deg, #11343f, #1f5969);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.video-shell video {
  width: 100%;
  min-height: 320px;
  display: block;
  object-fit: cover;
  background: #0f2630;
}

.video-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.guide-oval {
  position: absolute;
  inset: 12% 24% 14%;
  border: 2px dashed rgba(255, 255, 255, 0.72);
  border-radius: 48% 48% 44% 44%;
}

.guide-caption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 10px 12px;
  border-radius: 14px;
  color: white;
  background: rgba(12, 27, 35, 0.62);
  max-width: 280px;
}

/* Smile Arc Step Indicators */
.arc-step-indicators {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
  justify-content: center;
  z-index: 10;
}

.arc-step {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(12, 27, 35, 0.72);
  border: 2px solid rgba(255, 255, 255, 0.42);
  color: white;
  font-size: 0.78rem;
  font-weight: 600;
}

.arc-step.active {
  background: rgba(29, 109, 134, 0.92);
  border-color: rgba(255, 255, 255, 0.82);
  box-shadow: 0 0 12px rgba(29, 109, 134, 0.48);
}

.arc-step.completed {
  background: rgba(60, 140, 158, 0.72);
  border-color: rgba(255, 255, 255, 0.62);
}

.smile-progress-label {
  position: absolute;
  top: 56px;
  left: 12px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(12, 27, 35, 0.76);
  color: white;
  font-size: 0.82rem;
  font-weight: 500;
}

/* Smile Capture Guide */
.smile-capture-guide {
  position: absolute;
  inset: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 8;
}

.face-diagram {
  width: 140px;
  height: 210px;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

.smile-guide-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: rgba(12, 27, 35, 0.82);
  padding: 12px 16px;
  border-radius: 12px;
  max-width: 200px;
}

.smile-step-display {
  text-align: center;
}

.current-step-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: rgba(100, 200, 255, 0.9);
  line-height: 1;
}

.current-step-title {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 4px;
  line-height: 1.2;
}

/* Smile Steps Panel */
.smile-steps-panel {
  display: grid;
  gap: 10px;
  padding: 14px;
  background: rgba(198, 229, 235, 0.28);
  border-radius: 14px;
  border: 1px solid rgba(29, 109, 134, 0.2);
}

.steps-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.steps-progress {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(29, 109, 134, 0.2);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.steps-list {
  display: grid;
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
}

.step-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid rgba(29, 109, 134, 0.15);
  background: rgba(255, 255, 255, 0.5);
  transition: all 0.2s ease;
}

.step-item.current {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(29, 109, 134, 0.4);
  box-shadow: 0 0 8px rgba(29, 109, 134, 0.2);
}

.step-item.completed {
  opacity: 0.7;
  background: rgba(255, 255, 255, 0.4);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(29, 109, 134, 0.15);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.step-item.current .step-number {
  background: rgba(29, 109, 134, 0.3);
  color: var(--accent);
  font-weight: 700;
}

.step-item.completed .step-number {
  background: rgba(29, 109, 134, 0.25);
  color: rgba(29, 109, 134, 0.6);
}

.step-content {
  display: grid;
  gap: 3px;
}

.step-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.step-item.completed .step-title {
  color: var(--muted);
}

.step-instructions {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.3;
}

.step-item.current .step-instructions {
  color: var(--text);
}

.step-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(29, 109, 134, 0.2);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  flex-shrink: 0;
}

.steps-footer {
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(29, 109, 134, 0.15);
}

.metric-stack {
  display: grid;
  gap: 12px;
}

.metric-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}

.metric-card strong {
  margin-bottom: 4px;
}

.capture-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 12px;
}

.thumb-card {
  padding: 8px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}

.thumb-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.thumb-card strong {
  display: block;
  margin-top: 8px;
  font-size: 0.84rem;
}

.thumb-card span {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.thumb-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 10px;
}

.thumb-action {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  cursor: pointer;
}

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

.record-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}

.record-card strong {
  margin-bottom: 6px;
}

.viewer-stage {
  min-height: 360px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at top left, rgba(29, 109, 134, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(239, 231, 216, 0.92));
  overflow: hidden;
}

.viewer-stage canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.viewer-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.code-block {
  margin: 0;
  min-height: 220px;
  max-height: 360px;
  overflow: auto;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(250, 247, 241, 0.88);
  color: var(--text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.86rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.texture-preview {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(250, 247, 241, 0.9);
}

.wide-preview {
  width: 100%;
  max-width: 420px;
  display: block;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(250, 247, 241, 0.9);
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100vw - 20px, 1120px);
    padding-top: 18px;
  }

  .panel {
    padding: 16px;
    border-radius: 20px;
  }

  .topbar {
    flex-direction: column;
  }

  .viewer-toolbar {
    gap: 8px;
    margin-bottom: 12px;
  }

  .button,
  .button-secondary {
    min-height: 42px;
    padding: 0 14px;
  }

  .capture-panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .capture-panel-header h3 {
    font-size: 1.1rem;
  }

  .capture-panel-header .muted {
    font-size: 0.92rem;
  }

  .capture-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .video-shell,
  .video-shell video {
    min-height: 240px;
  }

  .guide-oval {
    inset: 8% 24% 18%;
  }

  .guide-caption {
    left: 12px;
    right: 12px;
    bottom: 12px;
    max-width: none;
    padding: 8px 10px;
    font-size: 0.95rem;
  }

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

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

  .capture-stats-grid .metric-card:last-child {
    grid-column: 1 / -1;
  }

  .capture-sample-rail {
    grid-auto-columns: minmax(104px, 148px);
  }
}