:root {
  --bg: #faf7f4;
  --card: #ffffff;
  --text: #3d302c;
  --muted: #8b7355;
  --accent: #b07a62;
  --accent-dark: #8f5f4a;
  --rose: #c9957a;
  --border: #e8ddd4;
  --error: #b44a4a;
  --success: #4a7c59;
  --shadow: 0 8px 24px rgba(92, 74, 66, 0.08);
  --radius: 14px;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: linear-gradient(180deg, #faf7f4 0%, #f3ece6 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.brand-link { flex-shrink: 0; }

.brand-logo {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.header-text { flex: 1; min-width: 140px; }

.app-name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: #5c4a42;
}

.tagline {
  margin: 0.15rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.user-badge {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--bg);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
}

.site-footer {
  text-align: center;
  padding: 1.25rem 1rem 1.75rem;
  font-size: 0.82rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--card);
}

.footer-disclaimer { margin: 0 0 0.35rem; }

.footer-product { margin: 0; }

.footer-product a {
  color: var(--accent-dark);
  font-weight: 600;
  text-decoration: none;
}

.footer-product a:hover { text-decoration: underline; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.card-login {
  max-width: 420px;
  margin: 2rem auto;
}

.card h1, .card h2, .card h3 {
  font-family: var(--font-serif);
  color: #5c4a42;
  margin-top: 0;
}

.muted { color: var(--muted); font-size: 0.92rem; }

.form-stack { display: flex; flex-direction: column; gap: 0.85rem; }

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 600px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

label { font-size: 0.88rem; font-weight: 600; color: #5c4a42; }

input[type="text"],
input[type="password"],
input[type="date"],
input[type="file"],
select {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  background: #fff;
  min-height: 48px;
}

input:focus, select:focus {
  outline: 2px solid rgba(176, 122, 98, 0.35);
  border-color: var(--accent);
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.4;
}

.checkbox-row input { margin-top: 0.2rem; min-height: auto; width: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border-radius: 10px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  min-height: 48px;
  transition: background 0.15s ease;
}

.btn-block { width: 100%; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
  background: #f0ebe6;
  color: #5c4a42;
  border: 1px solid var(--border);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-dark);
  border: 1px solid var(--border);
  min-height: 36px;
  padding: 0.4rem 0.75rem;
}

.btn-sm { font-size: 0.85rem; }

.photo-source {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 0.85rem;
  margin: 0;
}

.photo-source legend {
  font-weight: 600;
  color: #5c4a42;
  padding: 0 0.35rem;
}

.source-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.source-tab {
  padding: 0.65rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  font-weight: 600;
  cursor: pointer;
}

.source-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.file-label {
  display: block;
  margin-bottom: 0.4rem;
}

.camera-hint {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
}

.camera-live-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

#camera-video {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #111;
}

.camera-status {
  text-align: center;
  padding: 1rem 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.camera-fallback {
  margin-top: 0.5rem;
}

.file-picker-btn {
  display: block;
  text-align: center;
  cursor: pointer;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden { display: none !important; }

.photo-preview img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.score-banner {
  background: linear-gradient(135deg, #fff8f3, #f7ece4);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  font-weight: 600;
  color: #5c4a42;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
  margin: 1rem 0;
}

@media (min-width: 600px) {
  .metrics-grid { grid-template-columns: repeat(4, 1fr); }
}

.metric-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem;
  text-align: center;
}

.metric-card span {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
}

.metric-card strong {
  font-size: 1.05rem;
  color: #5c4a42;
}

.image-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

@media (min-width: 700px) {
  .image-compare { grid-template-columns: 1fr 1fr; }
}

.image-compare figure { margin: 0; }

.image-compare figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.image-compare img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.results-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 700px) {
  .results-columns { grid-template-columns: 1fr 1fr; }
}

.bullet-list, .numbered-list, .session-list {
  margin: 0;
  padding-left: 1.2rem;
  line-height: 1.5;
}

.action-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  margin-top: 1rem;
}

@media (min-width: 500px) {
  .action-row { grid-template-columns: 1fr 1fr; }
}

.flash-stack { margin-bottom: 1rem; }

.flash {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
}

.flash-error { background: #fdeeee; color: var(--error); border: 1px solid #f0caca; }
.flash-info { background: #eef6ff; color: #356; border: 1px solid #cde; }
.flash-success { background: #eef8f0; color: var(--success); border: 1px solid #cde8d3; }

.toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: #3d302c;
  color: #fff;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  z-index: 200;
  max-width: calc(100% - 2rem);
  text-align: center;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(250, 247, 244, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 300;
}

.spinner {
  width: 42px;
  height: 42px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.page-heading-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.page-heading-row h1,
.page-heading-row h2 {
  margin: 0;
}

.search-form {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
}

@media (max-width: 500px) {
  .search-form {
    grid-template-columns: 1fr;
  }
}

.btn-danger {
  background: var(--error);
  color: #fff;
  border: none;
}

.btn-danger:hover:not(:disabled) {
  background: #963838;
}

.btn-danger:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sessions-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.sessions-toolbar.hidden {
  display: none;
}

.select-all-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
}

.session-row {
  display: flex;
  align-items: stretch;
  gap: 0.55rem;
  margin-bottom: 0.65rem;
}

.session-checkbox {
  align-self: center;
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  accent-color: var(--accent-dark);
}

.session-row .session-card {
  flex: 1;
  margin-bottom: 0;
}

.session-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0.65rem;
  text-decoration: none;
  color: inherit;
  background: var(--bg);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.session-card:hover,
.session-card:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.session-card-main {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.session-card-main strong {
  color: #5c4a42;
  font-size: 1rem;
}

.session-meta {
  font-size: 0.82rem;
  color: var(--muted);
}

.session-card-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.15rem;
  flex-shrink: 0;
}

.session-score {
  font-weight: 600;
  color: var(--accent-dark);
  font-size: 0.9rem;
}

.session-id {
  font-size: 0.78rem;
  color: var(--muted);
}

.session-list-cards {
  margin-top: 0.5rem;
}

.detail-meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
  font-size: 0.92rem;
}

.action-row-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .action-row-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.print-report {
  margin-top: 0;
}

.print-header {
  text-align: center;
  margin-bottom: 1rem;
}

.print-logo {
  max-width: 200px;
  height: auto;
  margin-bottom: 0.5rem;
}

.print-subtitle {
  color: var(--muted);
  margin: 0;
}

.print-client-info {
  background: var(--bg);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.print-client-info p {
  margin: 0.15rem 0;
}

.print-disclaimer {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

.empty-state {
  text-align: center;
  padding: 1.5rem 0;
}

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

  .site-header,
  .site-footer,
  .no-print,
  .flash-stack {
    display: none !important;
  }

  .site-main {
    max-width: none;
    padding: 0;
  }

  .print-report,
  .card {
    box-shadow: none;
    border: none;
    padding: 0;
    margin: 0;
  }

  .image-compare {
    break-inside: avoid;
  }

  .image-compare img {
    max-height: 280px;
    object-fit: contain;
  }
}

@media print {
  body.print-dashboard .site-header,
  body.print-dashboard .site-footer,
  body.print-dashboard #session-form,
  body.print-dashboard .card:not(.print-area),
  body.print-dashboard .flash-stack {
    display: none !important;
  }

  body.print-dashboard .print-area {
    display: block !important;
    box-shadow: none;
    border: none;
  }
}