/* VeriAdvisor Stylesheet - Legal Information & Statutory Reference */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Color Palette - Light Mode */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;
  --border-color: #cbd5e1;
  --border-subtle: #e2e8f0;
  --border-focus: #2563eb;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;

  --brand-primary: #1e3a8a;
  --brand-hover: #1e40af;
  --brand-light: #eff6ff;
  --brand-border: #bfdbfe;

  --accent: #2563eb;
  --accent-hover: #1d4ed8;

  --notice-bg: #f8fafc;
  --notice-border: #e2e8f0;
  --notice-text: #475569;

  --banner-green-bg: #ecfdf5;
  --banner-green-border: #a7f3d0;
  --banner-green-text: #065f46;

  --banner-rose-bg: #fff1f2;
  --banner-rose-border: #fecdd3;
  --banner-rose-text: #9f1239;

  --content-max-width: 720px;
  --layout-max-width: 1040px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0b1120;
    --bg-surface: #111a2e;
    --bg-subtle: #17233d;
    --bg-hover: #1f2f52;
    --border-color: #243556;
    --border-subtle: #1a2742;
    --border-focus: #60a5fa;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    --brand-primary: #3b82f6;
    --brand-hover: #60a5fa;
    --brand-light: #17284f;
    --brand-border: #2563eb;

    --accent: #60a5fa;
    --accent-hover: #93c5fd;

    --notice-bg: #0f182c;
    --notice-border: #1e2c4a;
    --notice-text: #94a3b8;

    --banner-green-bg: #062e24;
    --banner-green-border: #047857;
    --banner-green-text: #6ee7b7;

    --banner-rose-bg: #3b111a;
    --banner-rose-border: #881337;
    --banner-rose-text: #fda4af;
  }
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1.1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Top Statutory Notice */
.site-disclaimer-banner {
  background-color: var(--notice-bg);
  border-bottom: 1px solid var(--notice-border);
  padding: 0.45rem 1rem;
  font-size: 0.84rem;
  color: var(--notice-text);
  text-align: center;
  font-weight: 500;
}

/* Header */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.25rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: var(--layout-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.site-logo svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.site-nav a:hover,
.site-nav a.active {
  background-color: var(--bg-subtle);
  color: var(--accent);
}

/* Main Content Area */
.site-main {
  flex: 1;
  padding: 2rem 1.25rem;
}

.content-container {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.layout-wide {
  max-width: var(--layout-max-width);
  margin: 0 auto;
}

/* Breadcrumbs */
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.breadcrumbs .sep {
  opacity: 0.5;
}

/* Typography & Headings */
h1 {
  font-size: 1.85rem;
  line-height: 1.28;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  letter-spacing: -0.015em;
}

h2 {
  font-size: 1.35rem;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.1rem;
  line-height: 1.4;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

ul, ol {
  margin: 0.5rem 0 1.25rem 1.5rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.45rem;
}

/* Meta Line (Author & Review Date) */
.page-meta {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.page-meta a {
  color: var(--text-muted);
  font-weight: 600;
}

/* Hero Section */
.hero-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.hero-box h1 {
  font-size: 2rem;
  margin-bottom: 0.8rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

/* Categories Grid */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.category-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.category-card:hover {
  border-color: var(--accent);
}

.category-card h2 {
  font-size: 1.25rem;
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.category-card p {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

/* Items List */
.item-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.85rem;
  transition: border-color 0.15s ease;
}

.item-card:hover {
  border-color: var(--accent);
}

.item-card-title {
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.item-card-title a {
  text-decoration: none;
  color: var(--text-primary);
}

.item-card-title a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.item-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Worked Example Box */
.example-box {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.1rem 1.25rem;
  margin: 1rem 0 1.25rem;
}

.example-box p {
  margin-bottom: 0.6rem;
}

.example-math {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.5;
  white-space: pre-wrap;
  color: var(--text-primary);
  margin-top: 0.6rem;
}

/* FAQ Item */
.faq-block {
  margin: 1rem 0;
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background-color: var(--bg-surface);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}

.faq-item h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.faq-item p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Calculator Form Styles */
.calculator-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group select {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--border-focus);
}

.calc-btn {
  background-color: var(--brand-primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.calc-btn:hover {
  background-color: var(--brand-hover);
}

/* Status Banners */
.result-banner {
  padding: 0.85rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.result-banner.emerald {
  background-color: var(--banner-green-bg);
  border: 1px solid var(--banner-green-border);
  color: var(--banner-green-text);
}

.result-banner.rose {
  background-color: var(--banner-rose-bg);
  border: 1px solid var(--banner-rose-border);
  color: var(--banner-rose-text);
}

/* KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.kpi-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.85rem 1rem;
}

.kpi-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.kpi-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.kpi-sub {
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

/* Responsive Table */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1rem 0 1.25rem;
}

table.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  text-align: left;
}

table.legal-table th,
table.legal-table td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
}

table.legal-table th {
  background-color: var(--bg-subtle);
  font-weight: 600;
  color: var(--text-primary);
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 1.25rem 2rem;
  margin-top: auto;
}

.footer-container {
  max-width: var(--layout-max-width);
  margin: 0 auto;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

.footer-nav a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-help-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.footer-help-links .help-link {
  color: var(--brand-primary);
  font-weight: 600;
  text-decoration: underline;
}

.footer-help-links .beta-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.84rem;
}

.footer-help-links .beta-link:hover {
  color: var(--text-secondary);
  text-decoration: underline;
}

.footer-disclaimer {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-disclaimer p {
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

/* Mobile Adjustments (375px) */
@media (max-width: 480px) {
  body {
    font-size: 1rem;
  }
  .site-header {
    padding: 0.75rem 1rem;
  }
  .header-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .site-main {
    padding: 1.25rem 0.85rem;
  }
  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.2rem;
  }
  .hero-box {
    padding: 1.25rem;
  }
  .calculator-panel {
    padding: 1rem;
  }
}