/* The Grand Book Archive Companion - Global Theme CSS */
:root {
  --color-bg: #1a1414;
  --color-bg-alt: #221a1a;
  --color-surface: #2c2222;
  --color-surface-card: #382b2b;
  --color-surface-hover: #463737;
  --color-primary: #8b2626;
  --color-primary-hover: #a83232;
  --color-gold: #d4af37;
  --color-gold-light: #ffd700;
  --color-gold-dim: #9c8227;
  --color-text: #f5eedb;
  --color-text-muted: #c8baa1;
  --color-text-dim: #948670;
  --color-border: #4a3a3a;
  --color-border-gold: rgba(212, 175, 55, 0.35);
  --color-success: #4e8a52;
  --color-warning: #c9822b;
  --font-serif: 'Cinzel', 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Anonymous Pro', 'Cascadia Code', Menlo, Monaco, Consolas, monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(212, 175, 55, 0.2);
  --container-width: 1140px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  background-image: radial-gradient(circle at 50% 0%, #322222 0%, var(--color-bg) 70%);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-gold-light);
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header & Navigation */
.site-header {
  background: rgba(26, 20, 20, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-brand:hover {
  color: var(--color-gold);
  text-decoration: none;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gold-dim);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  line-height: 1.2;
  letter-spacing: 0.5px;
}

.brand-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface);
  text-decoration: none;
}

.nav-btn {
  background: var(--color-primary);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gold-dim);
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 14px rgba(139, 38, 38, 0.6);
}

/* Hero Section */
.hero {
  padding: 3.5rem 0 2.75rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.hero-content h1 .gold-accent {
  color: var(--color-gold-light);
  display: block;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, #a62e2e 0%, var(--color-primary) 100%);
  color: #ffffff;
  border: 1px solid var(--color-gold);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #be3838 0%, #992828 100%);
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--color-surface-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-gold-dim);
  transform: translateY(-2px);
}

.hero-media-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  position: relative;
}

.hero-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.hero-media-caption {
  padding: 0.85rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.chip {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.chip-gold {
  border-color: var(--color-gold-dim);
  color: var(--color-gold-light);
}

/* Tactical Companion HUD Section */
.companion-hud {
  padding: 3.5rem 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.75rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  margin-bottom: 0.75rem;
  color: #ffffff;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.hud-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.hud-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.65rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.hud-card:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-2px);
}

.hud-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.85rem;
}

.hud-card-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.hud-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-text);
}

/* Keybindings Table */
.key-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin-bottom: 1.25rem;
}

.key-table th, .key-table td {
  padding: 0.65rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.key-table th {
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
}

.kbd-badge {
  background: #110d0d;
  border: 1px solid var(--color-gold-dim);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.8);
  display: inline-block;
  margin-right: 0.25rem;
}

/* Upgrade Tier Quick Guide */
.tier-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.tier-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.tier-rank {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  min-width: 38px;
  text-align: center;
  display: inline-block;
}

.tier-s { background: #6a1a1a; color: #ffd700; border: 1px solid #ffd700; }
.tier-a { background: #1a4a2a; color: #7cfc00; border: 1px solid #7cfc00; }
.tier-b { background: #1a3a5a; color: #63b3ed; border: 1px solid #63b3ed; }
.tier-c { background: #3a3a3a; color: #cbd5e0; border: 1px solid #718096; }

.tier-detail strong {
  color: #ffffff;
  font-size: 0.95rem;
  display: block;
}

.tier-detail p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  margin-top: 0.25rem;
}

/* Alert Boxes */
.alert-box {
  background: rgba(139, 38, 38, 0.18);
  border: 1px solid rgba(139, 38, 38, 0.5);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.15rem;
  margin: 1.25rem 0;
  font-size: 0.9rem;
}

.alert-box-warning {
  background: rgba(201, 130, 43, 0.15);
  border-color: rgba(201, 130, 43, 0.45);
  border-left-color: var(--color-warning);
}

.alert-title {
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Strategy Hub & Core Pages Grid */
.strategy-section {
  padding: 4rem 0;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.guide-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
  position: relative;
}

.guide-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.guide-card-icon {
  font-size: 2rem;
  margin-bottom: 0.85rem;
}

.guide-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 0.65rem;
  color: #ffffff;
}

.guide-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.guide-card-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-gold);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.guide-card-link:hover {
  color: var(--color-gold-light);
}

/* Visual Sorting Showcase */
.showcase-section {
  padding: 3.5rem 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.showcase-media {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-gold);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.showcase-steps {
  list-style: none;
  counter-reset: step-counter;
}

.showcase-step {
  position: relative;
  padding-left: 3.25rem;
  margin-bottom: 1.65rem;
}

.showcase-step::before {
  counter-increment: step-counter;
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  border: 1px solid var(--color-gold-dim);
}

.showcase-step h4 {
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.showcase-step p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* Steam CTA Banner Section */
.steam-cta-section {
  padding: 3.5rem 0;
  text-align: center;
}

.steam-banner-card {
  background: linear-gradient(135deg, #1b2838 0%, #171a21 100%);
  border: 1px solid #2a475e;
  border-radius: var(--radius-lg);
  padding: 2.75rem 2rem;
  box-shadow: var(--shadow-card);
  max-width: 860px;
  margin: 0 auto;
}

.steam-banner-card h2 {
  font-family: var(--font-serif);
  font-size: 1.95rem;
  color: #ffffff;
  margin-bottom: 0.75rem;
  letter-spacing: 0.5px;
}

.steam-banner-card p {
  color: #8f98a0;
  max-width: 600px;
  margin: 0 auto 1.85rem;
  font-size: 1.05rem;
  line-height: 1.6;
}

.steam-cta-btn {
  background: linear-gradient(90deg, #47bfff 0%, #1a9fff 100%);
  color: #ffffff !important;
  font-weight: 700;
  padding: 0.95rem 2.4rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  border: none;
  box-shadow: 0 4px 15px rgba(26, 159, 255, 0.4);
}

.steam-cta-btn:hover {
  background: linear-gradient(90deg, #66caff 0%, #38aeff 100%);
  box-shadow: 0 6px 20px rgba(26, 159, 255, 0.6);
  transform: translateY(-2px);
  text-decoration: none !important;
}

/* Site Footer */
.site-footer {
  margin-top: auto;
  background: #120e0e;
  border-top: 1px solid var(--color-border);
  padding: 3.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--color-text-dim);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  font-family: var(--font-serif);
  color: var(--color-text);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

.footer-col p {
  line-height: 1.65;
  margin-bottom: 0.85rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.55rem;
}

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

.footer-links a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.disclaimer-text {
  max-width: 650px;
  line-height: 1.55;
}

/* Responsive */
@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .showcase-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .site-header .header-inner {
    height: auto;
    padding: 0.85rem 0;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    gap: 1rem;
  }
}