:root {
  --bg: #f6f3ee;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #5f6b76;
  --line: #d9dee3;
  --accent: #1f6feb;
  --accent-dark: #1558bc;
  --success: #0f7b4a;
  --warning: #9a6700;
  --shadow: 0 10px 30px rgba(31, 41, 51, 0.08);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #ebe4d8 0%, var(--bg) 220px);
}

.container {
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  padding: 2rem 0 1rem;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1,
h2,
h3 {
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.lede {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

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

.photo-intro {
  margin: 0 0 1rem;
}

.photo-stage {
  position: relative;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: #fafbfc;
  min-height: 220px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.photo-placeholder {
  text-align: center;
  color: var(--muted);
  padding: 1.5rem;
}

.photo-placeholder p {
  margin: 0;
}

.photo-icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 0.35rem;
}

.photo-preview {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  display: none;
}

.photo-preview.is-visible {
  display: block;
}

.photo-stage.has-photo .photo-placeholder {
  display: none;
}

.photo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.photo-file-btn {
  cursor: pointer;
  margin: 0;
}

.photo-file-btn input {
  display: none;
}

.language-preference {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafbfc;
}

.field {
  display: grid;
  gap: 0.35rem;
}

label,
legend {
  font-weight: 600;
}

.optional {
  font-weight: 400;
  color: var(--muted);
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  background: white;
}

.advanced {
  margin-top: 1rem;
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 0.75rem 1rem;
}

.advanced-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
}

.checkbox-label input {
  width: auto;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-dark);
}

.btn-secondary {
  background: #eef2f6;
  color: var(--ink);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  color: #b42318;
  margin: 0.75rem 0 0;
}

.progress-bar {
  height: 6px;
  background: #eef2f6;
  border-radius: 999px;
  overflow: hidden;
  margin: 1rem 0;
}

#progress-fill {
  display: block;
  height: 100%;
  width: 30%;
  background: var(--accent);
  border-radius: 999px;
  animation: progress-pulse 1.4s ease-in-out infinite;
}

@keyframes progress-pulse {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(350%);
  }
}

/* Result page */

.panel-result {
  padding: 0;
  overflow: hidden;
}

.bb-result {
  display: grid;
  gap: 0;
}

.bb-hero {
  padding: 1.5rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

.bb-hero-top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  flex-wrap: wrap;
}

.bb-success {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.35rem;
}

.bb-success-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: #e6f4ec;
  color: var(--success);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
}

.bb-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.bb-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
}

.bb-main {
  padding: 1.5rem;
  display: grid;
  gap: 1.25rem;
}

.bb-sidebar {
  padding: 1.25rem;
  border-left: 1px solid var(--line);
  background: #fafbfc;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.bb-book-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}

.bb-book-cover {
  width: 72px;
  height: 108px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #f3f4f6;
}

.bb-book-cover.is-placeholder {
  display: grid;
  place-items: center;
  font-size: 1.75rem;
  object-fit: none;
}

.bb-book-title {
  margin: 0 0 0.2rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.bb-book-author {
  margin: 0 0 0.65rem;
  color: var(--muted);
}

.bb-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.bb-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #eef2f6;
  color: var(--ink);
}

.bb-tag.is-confidence-high {
  background: #e6f4ec;
  color: var(--success);
}

.bb-tag.is-confidence-medium {
  background: #fff4e0;
  color: var(--warning);
}

.bb-tag.is-confidence-low {
  background: #f3f4f6;
  color: var(--muted);
}

.bb-section {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  background: white;
}

.bb-section-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.bb-section-icon {
  font-size: 1.1rem;
}

.bb-section h3 {
  margin: 0;
  font-size: 1rem;
}

.bb-section p {
  margin: 0;
  line-height: 1.55;
}

.bb-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.bb-list li {
  display: flex;
  gap: 0.5rem;
  line-height: 1.45;
}

.bb-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.bb-two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.bb-callout-green {
  background: #f3faf6;
  border-color: #b7dfc8;
}

.bb-callout-green .bb-list li::before {
  content: "✓";
  color: var(--success);
}

.bb-callout-amber {
  background: #fffaf3;
  border-color: #f0d9a8;
}

.bb-callout-amber .bb-list li::before {
  content: "•";
  color: var(--warning);
}

.bb-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.bb-chip {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: #eef2f6;
  font-size: 0.85rem;
  font-weight: 600;
}

.bb-content-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.bb-content-table th,
.bb-content-table td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.bb-content-table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.bb-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.bb-badge.is-mild,
.bb-badge.is-present {
  background: #e6f4ec;
  color: var(--success);
}

.bb-badge.is-moderate {
  background: #fff4e0;
  color: var(--warning);
}

.bb-badge.is-strong,
.bb-badge.is-prominent {
  background: #fde8e8;
  color: #b42318;
}

.bb-badge.is-absent,
.bb-badge.is-none {
  background: #eef2f6;
  color: var(--muted);
}

.bb-conversation {
  background: #fff8f0;
  border-color: #f0d9a8;
}

.bb-conversation-question {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.bb-conversation-why {
  margin: 0 0 0.75rem;
  color: var(--muted);
}

.bb-sidebar-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  background: white;
}

.bb-sidebar-card h4 {
  margin: 0 0 0.55rem;
  font-size: 0.92rem;
}

.bb-sidebar-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.bb-sidebar-list li {
  display: flex;
  gap: 0.45rem;
}

.bb-privacy {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0;
}

.result-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid var(--line);
  background: #fafbfc;
}

@media (max-width: 800px) {
  .bb-layout {
    grid-template-columns: 1fr;
  }

  .bb-sidebar {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .bb-two-col {
    grid-template-columns: 1fr;
  }

  .bb-hero-top .actions {
    width: 100%;
  }
}