@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── Theme tokens (mirror of app.component.scss) ─────────────── */
:root {
  --bg-primary: #05050a;
  --bg-secondary: rgba(10, 10, 18, 0.45);
  --bg-tertiary: rgba(99, 102, 241, 0.08);
  --text-primary: #ffffff;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --text-accent: #a78bfa;
  --border-primary: rgba(255, 255, 255, 0.08);
  --border-secondary: rgba(255, 255, 255, 0.03);
  --border-accent: rgba(168, 85, 247, 0.4);
  --shadow-primary: rgba(0, 0, 0, 0.5);
  --glass-backdrop: blur(40px) saturate(200%);
  --gradient-shimmer: linear-gradient(135deg, #c084fc, #818cf8, #38bdf8);
  --gradient-hero: linear-gradient(135deg, #ffffff, #c7d2fe, #a78bfa);
  --global-bg: #030308;
  --global-text: #f8fafc;
  --grid-line: rgba(255, 255, 255, 0.02);
  --bg-aurora-1: rgba(99, 102, 241, 0.16);
  --bg-aurora-2: rgba(168, 85, 247, 0.13);
  --bg-aurora-3: rgba(56, 189, 248, 0.09);
  --bg-vignette: rgba(0, 0, 0, 0.5);
  --selection-bg: rgba(168, 85, 247, 0.4);
  --selection-color: #fff;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f8fafc;
    --bg-secondary: rgba(255, 255, 255, 0.88);
    --bg-tertiary: rgba(99, 102, 241, 0.04);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-accent: #6366f1;
    --border-primary: rgba(0, 0, 0, 0.08);
    --border-secondary: rgba(0, 0, 0, 0.05);
    --border-accent: rgba(99, 102, 241, 0.25);
    --shadow-primary: rgba(0, 0, 0, 0.08);
    --glass-backdrop: blur(28px) saturate(1.3);
    --gradient-shimmer: linear-gradient(135deg, #6366f1, #818cf8, #a78bfa);
    --gradient-hero: linear-gradient(135deg, #1e293b, #3730a3, #4338ca);
    --global-bg: #f0f2ff;
    --global-text: #1e293b;
    --grid-line: rgba(15, 23, 42, 0.025);
    --bg-aurora-1: rgba(99, 102, 241, 0.14);
    --bg-aurora-2: rgba(236, 72, 153, 0.08);
    --bg-aurora-3: rgba(14, 165, 233, 0.1);
    --bg-vignette: rgba(203, 213, 225, 0.35);
    --selection-bg: rgba(99, 102, 241, 0.25);
    --selection-color: #1e293b;
  }
}

/* ── Base ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 2rem 1rem;
  min-height: 100vh;
  line-height: 1.7;
  color: var(--global-text);
  background-color: var(--global-bg);
  background-image:
    radial-gradient(ellipse 90% 55% at 15% -5%, var(--bg-aurora-1), transparent 60%),
    radial-gradient(ellipse 70% 45% at 85% 5%, var(--bg-aurora-2), transparent 60%),
    radial-gradient(ellipse 85% 60% at 50% 108%, var(--bg-aurora-3), transparent 65%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 30px 30px, 30px 30px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 120% 90% at 50% 40%, transparent 55%, var(--bg-vignette) 100%);
}

::selection { background: var(--selection-bg); color: var(--selection-color); }

/* ── Glass container ─────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 2rem;
  background: var(--bg-secondary);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-primary);
  border-radius: 24px;
  box-shadow:
    0 12px 40px var(--shadow-primary),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ── Typography ──────────────────────────────────────────────── */
h1 {
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 0.5rem 0 0.75rem;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 2rem;
  color: var(--text-accent);
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 1.5rem;
  color: var(--text-primary);
}

p, li { color: var(--text-muted); }

strong { color: var(--text-secondary); }

a { color: var(--text-accent); text-decoration: none; transition: opacity 0.2s ease; }
a:hover { opacity: 0.8; text-decoration: underline; }

.lede { font-size: 1.05rem; color: var(--text-secondary); }

.breadcrumbs { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.5rem; }

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-secondary);
}

/* ── Lists ───────────────────────────────────────────────────── */
ul { padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }
li::marker { color: var(--text-accent); }

/* ── Tables ──────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.92rem;
  border-radius: 12px;
  overflow: hidden;
}

th, td {
  border: 1px solid var(--border-primary);
  padding: 0.65rem 0.9rem;
  text-align: left;
  color: var(--text-muted);
}

th {
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  font-weight: 600;
}

/* ── Disclaimer box ──────────────────────────────────────────── */
.disclaimer {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-left: 3px solid var(--text-accent);
  border-radius: 12px;
  padding: 0.9rem 1.2rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 2.5rem;
}

/* ── Related guides ──────────────────────────────────────────── */
.related {
  border-top: 1px solid var(--border-secondary);
  margin-top: 2rem;
  padding-top: 1.25rem;
}

/* ── Back link ───────────────────────────────────────────────── */
.back {
  display: inline-flex;
  margin-top: 2rem;
  padding: 0.6rem 1.2rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-accent);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-accent);
  border-radius: 12px;
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.25s ease;
}

.back:hover {
  text-decoration: none;
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-primary);
}

/* ── Guide cards grid ────────────────────────────────────────── */
.guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.guide-card {
  display: block;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 16px;
  padding: 1.1rem 1.3rem;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.3s ease, box-shadow 0.3s ease;
}

.guide-card:hover {
  text-decoration: none;
  opacity: 1;
  transform: translateY(-3px);
  border-color: var(--border-accent);
  box-shadow: 0 12px 32px var(--shadow-primary);
}

.guide-card strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.98rem;
}

.guide-card span { color: var(--text-muted); font-size: 0.88rem; line-height: 1.5; }

/* ── Contact card ────────────────────────────────────────────── */
.contact-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.contact-card a { font-weight: 600; }

/* ── FAQ items ───────────────────────────────────────────────── */
.faq-item {
  border-bottom: 1px solid var(--border-secondary);
  padding: 0.9rem 0;
}

.faq-item:last-of-type { border-bottom: none; }

.faq-item h3 { margin: 0 0 0.4rem; }
.faq-item p { margin: 0; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (min-width: 640px) {
  .guide-grid { grid-template-columns: 1fr 1fr; }
  .container { padding: 3rem 2.75rem; }
}

@media (max-width: 480px) {
  body { padding: 1rem 0.6rem; }
  .container { padding: 1.75rem 1.25rem; border-radius: 20px; }
  h1 { font-size: 1.55rem; }
  table { font-size: 0.82rem; }
  th, td { padding: 0.5rem 0.6rem; }
}