/* ═══════════════════════════════════════════════════════════
   EIP Book — Paul Marquina Brand Theme
   ═══════════════════════════════════════════════════════════ */

/* ── Color Palette ── */
:root {
  --md-primary-fg-color: #1a1a2e;
  --md-primary-fg-color--light: #16213e;
  --md-primary-fg-color--dark: #0f0f1a;
  --md-accent-fg-color: #e94560;
  --pm-brand-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --pm-accent: #e94560;
  --pm-gold: #f0a500;
  --pm-light-bg: #f8f9fb;
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #0f0f1a;
  --md-primary-fg-color--light: #1a1a2e;
  --md-primary-fg-color--dark: #080812;
  --md-accent-fg-color: #e94560;
}

/* ── Header ── */
.md-header {
  background: var(--pm-brand-gradient);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.md-header__title {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ── Navigation tabs ── */
.md-tabs {
  background: var(--md-primary-fg-color--dark);
}

.md-tabs__link--active,
.md-tabs__link:hover {
  color: var(--pm-accent) !important;
}

/* ── Hero on landing page ── */
.pm-hero {
  background: var(--pm-brand-gradient);
  color: white;
  padding: 4rem 2rem;
  border-radius: 12px;
  margin: -1rem -0.5rem 2rem;
  text-align: center;
}

.pm-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: white;
}

.pm-hero .pm-subtitle {
  font-size: 1.15rem;
  opacity: 0.85;
  max-width: 700px;
  margin: 0.5rem auto 1.5rem;
  line-height: 1.6;
}

.pm-hero .pm-author {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.1);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.95rem;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,0.15);
}

.pm-hero .pm-author strong {
  color: var(--pm-gold);
}

.pm-hero .pm-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.pm-hero .pm-stat {
  text-align: center;
}

.pm-hero .pm-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--pm-gold);
  display: block;
}

.pm-hero .pm-stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

/* ── Content badges ── */
.pm-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pm-badge--high { background: #2ecc71; color: white; }
.pm-badge--medium { background: #f39c12; color: white; }
.pm-badge--low { background: #e74c3c; color: white; }

/* ── Footer ── */
.md-footer {
  background: var(--md-primary-fg-color--dark);
}

.md-copyright {
  color: rgba(255,255,255,0.6);
}

.md-social__link {
  color: rgba(255,255,255,0.7);
}

.md-social__link:hover {
  color: var(--pm-accent);
}

/* ── Pattern section headers ── */
.md-content h2 {
  border-bottom: 2px solid var(--pm-accent);
  padding-bottom: 0.4rem;
}

/* ── Diagram tabs ── */
.md-typeset .tabbed-labels > label {
  font-weight: 600;
}

/* ── Admonition styling ── */
.md-typeset details.example {
  border-color: var(--md-primary-fg-color--light);
}

/* ── Code blocks ── */
.md-typeset pre > code {
  font-size: 0.82rem;
}

/* ── Tables ── */
.md-typeset table:not([class]) th {
  background: var(--md-primary-fg-color);
  color: white;
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background: var(--md-primary-fg-color--light);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .pm-hero { padding: 2rem 1rem; }
  .pm-hero h1 { font-size: 1.6rem; }
  .pm-hero .pm-stats { gap: 1rem; }
  .pm-hero .pm-stat-number { font-size: 1.4rem; }
}