/* ========================================
   Project Value Rater - Modern UI
   ======================================== */

:root {
  /* Light theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;

  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-light: #eef2ff;
  --accent-glow: rgba(99, 102, 241, 0.15);

  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --info: #3b82f6;
  --info-bg: #eff6ff;

  /* Score colors */
  --score-high: #10b981;
  --score-medium: #f59e0b;
  --score-low: #ef4444;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 0 3px var(--accent-glow);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* Dark theme - applied via data-theme attribute */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-hover: #475569;

  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;

  --border-color: #334155;
  --border-strong: #475569;

  --accent-light: rgba(99, 102, 241, 0.15);
  --accent-glow: rgba(99, 102, 241, 0.25);

  --success-bg: rgba(16, 185, 129, 0.1);
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger-bg: rgba(239, 68, 68, 0.1);
  --info-bg: rgba(59, 130, 246, 0.1);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* ========================================
   Layout
   ======================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.brand::before {
  content: "◆";
  color: var(--accent);
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.topbar nav a:hover {
  color: var(--accent);
}

/* Theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

@media (max-width: 768px) {
  .topbar {
    padding: 1rem;
  }
  main {
    padding: 1.5rem 1rem 3rem;
  }
}

/* ========================================
   Cards & Panels
   ======================================== */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

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

/* ========================================
   Hero Section (Index Page)
   ======================================== */

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 2rem;
  margin-bottom: 3rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-self: start;
  position: sticky;
  top: 6rem;
  padding: 2rem 0 0;
}

.hero-content h1 {
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.feature-tag::before {
  content: "✓";
  color: var(--success);
  font-size: 0.7rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-content {
    position: static;
    padding: 1rem 0;
  }
}

/* ========================================
   Scan Form
   ======================================== */

.scan-form {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.source-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.source-option {
  position: relative;
}

.source-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.source-option label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  padding: 0.75rem 0.5rem;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.source-option label:hover {
  background: var(--bg-hover);
}

.source-option input:checked + label {
  background: var(--accent-light);
  border-color: var(--accent);
}

.source-icon {
  font-size: 1.25rem;
}

.source-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.source-option input:checked + label .source-name {
  color: var(--accent);
}

@media (max-width: 600px) {
  .source-selector {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Form Elements */
.form-group {
  margin-bottom: 1rem;
}

.form-group.hidden {
  display: none;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.input-with-button {
  display: flex;
  gap: 0.5rem;
}

.input-with-button .form-input {
  flex: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.btn-block {
  width: 100%;
}

/* Form hint & errors */
.form-hint {
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.form-error {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--danger-bg);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 0.875rem;
}

/* Cost estimate box */
.cost-estimate {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.cost-estimate span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.cost-estimate strong {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ========================================
   Recent Scans Grid
   ======================================== */

.guide-panel {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.guide-item {
  padding: 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.guide-item h3 {
  margin-bottom: 0.5rem;
}

.guide-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.scan-sections {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.category-section {
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.category-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.owner-tag {
  background: var(--success-bg);
  color: var(--success);
}

.readonly-tag {
  background: var(--info-bg);
  color: var(--info);
}

.read-only-note {
  margin-left: auto;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.report-readonly {
  align-self: center;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.section-header h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.scan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.scan-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.scan-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scan-card-main {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.25rem;
  color: inherit;
}

.scan-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.scan-card-title {
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

.scan-card-score {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 48px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border-radius: var(--radius-md);
}

.scan-card-score.high { background: var(--score-high); }
.scan-card-score.medium { background: var(--score-medium); }
.scan-card-score.low { background: var(--score-low); }

.scan-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.scan-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.scan-card-conclusion {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.scan-card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: flex-end;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
}

.empty-state p {
  margin-bottom: 1rem;
}

/* ========================================
   Report Page - Header
   ======================================== */

.report-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  margin-bottom: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
}

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

.report-info h1 {
  margin-bottom: 0.5rem;
  word-break: break-word;
}

.report-info .conclusion {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Circular Score */
.total-score-ring {
  position: relative;
  width: 140px;
  height: 140px;
}

.score-ring-bg,
.score-ring-fill {
  fill: none;
  stroke-width: 10;
}

.score-ring-bg {
  stroke: var(--bg-tertiary);
}

.score-ring-fill {
  stroke: var(--accent);
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: center;
  transition: stroke-dasharray 0.8s ease;
}

.score-ring-fill.high { stroke: var(--score-high); }
.score-ring-fill.medium { stroke: var(--score-medium); }
.score-ring-fill.low { stroke: var(--score-low); }

.score-ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-ring-value {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.score-ring-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .report-header {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .total-score-ring {
    margin: 0 auto;
  }
}

/* ========================================
   Score Cards Grid
   ======================================== */

.scores-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.score-card {
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}

.score-card-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.score-card-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.score-card-value.high { color: var(--score-high); }
.score-card-value.medium { color: var(--score-medium); }
.score-card-value.low { color: var(--score-low); }

/* Progress bar */
.score-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 0.6s ease;
}

.score-bar-fill.high { background: var(--score-high); }
.score-bar-fill.medium { background: var(--score-medium); }
.score-bar-fill.low { background: var(--score-low); }

@media (max-width: 900px) {
  .scores-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ========================================
   Collapsible Sections
   ======================================== */

.collapsible {
  margin-bottom: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  user-select: none;
}

.collapsible-header:hover {
  background: var(--bg-tertiary);
}

.collapsible-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.collapsible-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

.collapsible-badge {
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.collapsible-arrow {
  transition: transform var(--transition-fast);
  color: var(--text-muted);
}

.collapsible.open .collapsible-arrow {
  transform: rotate(180deg);
}

.collapsible-content {
  display: none;
  padding: 0 1.25rem 1.25rem;
}

.collapsible.open .collapsible-content {
  display: block;
}

/* ========================================
   Two Column Layout
   ======================================== */

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

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

/* ========================================
   Lists
   ======================================== */

.styled-list {
  list-style: none;
}

.styled-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.styled-list li:last-child {
  border-bottom: none;
}

.styled-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.875rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.styled-list.success li::before { background: var(--success); }
.styled-list.warning li::before { background: var(--warning); }
.styled-list.danger li::before { background: var(--danger); }

/* ========================================
   Evidence Cards
   ======================================== */

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.evidence-card {
  position: relative;
  padding: 1rem 1rem 1rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  border-left-width: 4px;
}

.evidence-card.good { border-left-color: var(--success); }
.evidence-card.warning { border-left-color: var(--warning); }
.evidence-card.danger { border-left-color: var(--danger); }
.evidence-card.info { border-left-color: var(--info); }

.evidence-category {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.evidence-key {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
  word-break: break-word;
}

.evidence-explanation {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.evidence-source {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ========================================
   Feedback Panel
   ======================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.stat-item {
  padding: 0.875rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

  .category-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ========================================
   LLM Analysis Card
   ======================================== */

.analysis-card {
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.analysis-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.analysis-judgement {
  display: inline-block;
  padding: 0.625rem 1rem;
  font-size: 1rem;
  font-weight: 700;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.analysis-grid h3 {
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

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

/* ========================================
   Forms in Report Page
   ======================================== */

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.llm-config-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.llm-detect-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: -0.25rem 0 1rem;
}

.llm-detect-status {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.llm-detect-status.success {
  color: var(--success);
}

.llm-detect-status.error {
  color: var(--danger);
}

@media (max-width: 900px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-item span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ========================================
   Utilities
   ======================================== */

.hidden {
  display: none !important;
}

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Divider */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: 1.5rem 0;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.badge.success { background: var(--success-bg); color: var(--success); }
.badge.warning { background: var(--warning-bg); color: var(--warning); }
.badge.danger { background: var(--danger-bg); color: var(--danger); }
.badge.info { background: var(--info-bg); color: var(--info); }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Smooth fade in */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.4s ease;
}