/* ============================================================
   Gears of War: E-Day Wiki — Shared Styles
   Dark Theme · Crimson Brand · Responsive
   ============================================================ */

/* ── CSS Variables ─────────────────────────────────────── */
:root {
  /* Brand */
  --nav-theme: 0 90% 39%;
  --nav-theme-light: 0 85% 49%;
  --color-brand: hsl(0 90% 39%);
  --color-brand-light: hsl(0 85% 49%);
  --color-brand-glow: hsl(0 90% 39% / 0.35);

  /* Neutrals */
  --color-bg: #030303;
  --color-bg-elevated: #0d0d0d;
  --color-bg-card: #141414;
  --color-bg-card-hover: #1a1a1a;
  --color-border: hsl(0 0% 14%);
  --color-border-light: hsl(0 0% 20%);

  /* Text */
  --color-text: #f5f5f5;
  --color-text-secondary: hsl(0 0% 70%);
  --color-text-muted: hsl(0 0% 50%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --section-gap: 5rem;
  --content-max: 1200px;

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

  /* Shadows */
  --shadow-card: 0 1px 3px hsl(0 0% 0% / 0.5);
  --shadow-card-hover: 0 8px 30px hsl(0 0% 0% / 0.6);
  --shadow-glow: 0 0 40px var(--color-brand-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-brand-light);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: hsl(var(--nav-theme-light)); }

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
}

ul, ol { list-style: none; }

/* ── Utility ───────────────────────────────────────────── */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-light);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 36rem;
  line-height: 1.7;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-brand);
  color: #fff;
  box-shadow: 0 2px 12px hsl(0 90% 30% / 0.4);
  border: 1px solid hsl(0 90% 45% / 0.3);
}

.btn-primary:hover {
  background: var(--color-brand-light);
  box-shadow: 0 4px 20px hsl(0 90% 30% / 0.55);
  transform: translateY(-1px);
  color: #fff;
}

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

.btn-secondary:hover {
  background: hsl(0 0% 100% / 0.06);
  border-color: hsl(0 0% 100% / 0.2);
  transform: translateY(-1px);
}

.btn-ghost {
  color: var(--color-text-muted);
  padding: 0.7rem 0.75rem;
  background: transparent;
}

.btn-ghost:hover { color: var(--color-text); }

/* ── Navigation ────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: hsl(0 0% 3% / 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  background: hsl(0 0% 3% / 0.95);
  border-bottom-color: var(--color-border-light);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-text) !important;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav-logo:hover { color: var(--color-text) !important; }

.nav-logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  filter: drop-shadow(0 0 10px var(--color-brand-glow));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
  background: hsl(0 0% 100% / 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  transition: all var(--duration-fast) var(--ease-out);
}

.nav-btn:hover {
  background: hsl(0 0% 100% / 0.08);
  color: var(--color-text);
}

.nav-lang {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--duration-fast) var(--ease-out);
}

.nav-lang:hover {
  background: hsl(0 0% 100% / 0.08);
  color: var(--color-text);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: var(--radius-sm);
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: all var(--duration-normal) var(--ease-out);
}

.nav-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 0.5rem 1.5rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background: hsl(0 0% 3% / 0.98);
  backdrop-filter: blur(16px);
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  padding: 0.75rem 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

/* ── Page Header (subpages) ────────────────────────────── */
.page-header {
  padding: 120px 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 30%, hsl(0 90% 20% / 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.page-header .section-label { margin-bottom: 0.5rem; }

.page-header .section-title {
  margin-bottom: 0.75rem;
}

.page-header .section-description {
  margin: 0 auto;
}

/* ── Breadcrumb ────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  justify-content: center;
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-text); }
.breadcrumb .sep { color: var(--color-border-light); }

/* ── Content Section (subpages) ────────────────────────── */
.content-section {
  padding: 3rem 0;
}

.content-section.alt {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* ── Card Grids ────────────────────────────────────────── */
.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

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

/* ── Info Card ─────────────────────────────────────────── */
.info-card {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.info-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-card-hover);
}

.info-card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.info-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.info-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Stat Table ────────────────────────────────────────── */
.stat-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.stat-table tr {
  border-bottom: 1px solid var(--color-border);
}

.stat-table tr:last-child { border-bottom: none; }

.stat-table td {
  padding: 0.9rem 1.25rem;
  background: var(--color-bg-card);
  font-size: 0.9rem;
}

.stat-table td:first-child {
  color: var(--color-text-muted);
  font-weight: 500;
  width: 200px;
}

.stat-table td:last-child {
  font-weight: 700;
  color: var(--color-text);
}

/* ── Footer ────────────────────────────────────────────── */
.footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.footer-about-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-end: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
  font-size: 0.78rem;
}

/* ── Final CTA (shared) ────────────────────────────────── */
.final-cta {
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, hsl(0 90% 12% / 0.6), hsl(0 0% 4% / 0.8));
  border: 1px solid hsl(0 90% 25% / 0.3);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 60% at 50% 0%, hsl(0 90% 39% / 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta > * { position: relative; }

.final-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.final-desc {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.final-ctas {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ── Scroll Reveal ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Selection & Scrollbar ─────────────────────────────── */
::selection {
  background: hsl(0 90% 39% / 0.35);
  color: #fff;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: hsl(0 0% 18%); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: hsl(0 0% 25%); }

/* ── Responsive: Navigation ────────────────────────────── */
@media (max-width: 1023px) {
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .nav-links,
  .nav-actions .nav-lang,
  .nav-actions .nav-btn { display: none; }

  .nav-hamburger { display: flex; }

  .card-grid-2,
  .card-grid-3,
  .card-grid-4 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .btn { width: 100%; justify-content: center; }
}

/* ── Accordion ─────────────────────────────────────────── */
.accordion {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child { border-bottom: none; }

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  transition: background var(--duration-fast) var(--ease-out);
}

.accordion-trigger:hover {
  background: var(--color-bg-card-hover);
}

.accordion-trigger::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: transform var(--duration-normal) var(--ease-out);
}

.accordion-item.open .accordion-trigger::after {
  content: '−';
  color: var(--color-brand-light);
}

.accordion-panel {
  display: none;
  padding: 0 1.5rem 1.25rem;
  background: var(--color-bg-card);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.accordion-item.open .accordion-panel {
  display: block;
}

/* ── Tab Bar ───────────────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 0.7rem 1.25rem;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.tab-btn:hover { color: var(--color-text); }

.tab-btn.active {
  color: var(--color-brand-light);
  border-bottom-color: var(--color-brand-light);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Badge ─────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-pve { background: hsl(25 90% 40% / 0.15); color: #f97316; }
.badge-pvp { background: hsl(210 90% 40% / 0.15); color: #3b82f6; }
.badge-green { background: hsl(140 60% 40% / 0.15); color: #22c55e; }
.badge-red { background: hsl(0 90% 40% / 0.15); color: #ef4444; }

/* ── Note/Callout ──────────────────────────────────────── */
.callout {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-brand);
  background: hsl(0 90% 39% / 0.08);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.callout strong { color: var(--color-text); }