/* =========================================================
   13L Game — Design System
   Pure CSS, no framework. Mobile-first, luxury black/gold/orange.
   ========================================================= */

:root {
  /* Brand palette */
  --bg: #0A0A0A;
  --bg-elevated: #111111;
  --card: #171717;
  --card-hover: #1D1D1D;
  --primary: #FF5A2D;
  --primary-hover: #FF734D;
  --secondary: #FFB326;
  --gold: #FFD76A;
  --text: #FFFFFF;
  --text-secondary: #D5D5D5;
  --text-muted: #8F8F8F;
  --border: rgba(255, 183, 38, 0.18);
  --border-strong: rgba(255, 183, 38, 0.35);
  --glow: rgba(255, 183, 38, 0.22);
  --success: #3ED598;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --gradient-gold: linear-gradient(135deg, var(--secondary) 0%, var(--gold) 100%);
  --gradient-card: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0) 100%);
  --gradient-hero: radial-gradient(ellipse 80% 60% at 70% 30%, rgba(255,90,45,0.18), transparent 70%);

  /* Elevation */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px var(--glow);
  --shadow-glow-strong: 0 0 60px rgba(255,183,38,0.35);

  /* Radii */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 999px;

  /* Type scale */
  --font-display: "Clash Display", "Sora", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 2.875rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.25rem;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Layout */
  --container-max: 1280px;
  --header-height: 76px;

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 400ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
img, picture, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
::selection { background: var(--primary); color: var(--text); }

/* Skip link for a11y */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--primary); color: #fff; padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
@media (min-width: 768px) { .container { padding-inline: var(--space-7); } }

.section { padding-block: var(--space-8); position: relative; }
.section--tight { padding-block: var(--space-7); }
.section--alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015), transparent); }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--secondary); background: rgba(255,179,38,0.08);
  border: 1px solid var(--border); padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full); margin-bottom: var(--space-4);
}
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--gradient-primary); box-shadow: 0 0 8px var(--primary); }

.section-head { max-width: 640px; margin-bottom: var(--space-7); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-title { font-size: var(--fs-2xl); color: var(--text); margin-bottom: var(--space-3); }
.section-sub { color: var(--text-secondary); font-size: var(--fs-md); }
@media (min-width: 768px) { .section-title { font-size: var(--fs-3xl); } }

.text-gradient {
  background: var(--gradient-gold);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-weight: 700; font-size: var(--fs-sm); letter-spacing: 0.01em;
  padding: 14px 28px; border-radius: var(--radius-full);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
  white-space: nowrap; will-change: transform;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--gradient-primary); color: #fff;
  box-shadow: 0 4px 20px rgba(255,90,45,0.35);
}
.btn-primary:hover { box-shadow: 0 6px 28px rgba(255,90,45,0.5); transform: translateY(-2px); background: linear-gradient(135deg, var(--primary-hover) 0%, var(--secondary) 100%); }
.btn-outline {
  background: rgba(255,255,255,0.02); color: var(--text);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
}
.btn-outline:hover { border-color: var(--secondary); background: rgba(255,179,38,0.06); transform: translateY(-2px); }
.btn-ghost { color: var(--text-secondary); padding: 10px 18px; }
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: 17px 36px; font-size: var(--fs-base); }
.btn-sm { padding: 10px 20px; font-size: var(--fs-xs); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  padding-block: var(--space-4);
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), padding var(--dur-base) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10,10,10,0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border);
  padding-block: var(--space-3);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); }

.brand { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-display); font-weight: 800; font-size: var(--fs-lg); }
.brand-logo { height: 34px; width: auto; filter: drop-shadow(0 2px 10px rgba(255,90,45,0.35)); }
.footer-brand .brand-logo { height: 40px; }
.brand-name .accent { color: var(--secondary); }

.main-nav { display: none; }
.main-nav ul { display: flex; align-items: center; gap: var(--space-6); }
.main-nav a {
  font-size: var(--fs-sm); font-weight: 600; color: var(--text-secondary);
  position: relative; padding-block: 4px; transition: color var(--dur-fast);
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 2px;
  background: var(--gradient-primary); transition: width var(--dur-base) var(--ease); border-radius: 2px;
}
.main-nav a:hover { color: var(--text); }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { width: 100%; }
.main-nav a[aria-current="page"] { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: var(--space-3); }
.header-actions .btn-outline, .header-actions .btn-ghost { display: none; }

.nav-toggle {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); position: relative; transition: background var(--dur-fast); }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--text); transition: transform var(--dur-base) var(--ease), top var(--dur-base) var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; top: var(--header-height);
  background: rgba(10,10,10,0.98); backdrop-filter: blur(20px);
  z-index: 99; padding: var(--space-6) var(--space-5);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility var(--dur-base);
  overflow-y: auto;
}
.mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-6); }
.mobile-nav a { display: block; padding: var(--space-4); font-size: var(--fs-md); font-weight: 700; border-radius: var(--radius-md); }
.mobile-nav a:hover, .mobile-nav a[aria-current="page"] { background: var(--card); color: var(--secondary); }
.mobile-nav .mobile-actions { display: flex; flex-direction: column; gap: var(--space-3); }

@media (min-width: 1024px) {
  .main-nav { display: block; }
  .header-actions .btn-outline, .header-actions .btn-ghost { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ---------- Hero ---------- */
.hero { padding-top: var(--space-8); padding-bottom: var(--space-9); position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 700px;
  background: var(--gradient-hero); pointer-events: none; z-index: 0;
}
.hero .container { position: relative; z-index: 1; display: grid; gap: var(--space-8); }
.hero-copy { max-width: 640px; }
.hero-copy h1 { font-size: var(--fs-3xl); margin-bottom: var(--space-5); }
.hero-copy .lede { font-size: var(--fs-md); color: var(--text-secondary); margin-bottom: var(--space-6); max-width: 54ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }
.hero-trust { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--space-3); max-width: 460px; }
.hero-trust li { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--text-secondary); font-weight: 600; }
.hero-trust .tick {
  width: 20px; height: 20px; border-radius: 50%; background: rgba(62,213,152,0.12); color: var(--success);
  display: grid; place-items: center; flex: none; font-size: 0.7rem;
}

.hero-art { position: relative; display: flex; justify-content: center; }
.hero-art-frame {
  position: relative; width: 100%; max-width: 480px; aspect-ratio: 1/1;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at 30% 20%, rgba(255,183,38,0.14), transparent 60%), var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-glow-strong), var(--shadow-lg);
  display: grid; place-items: center; overflow: hidden;
}
.hero-art-frame img { width: 82%; height: auto; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5)); }
.hero-art-frame svg { width: 78%; height: auto; }
.coin {
  position: absolute; border-radius: 50%; background: var(--gradient-gold);
  box-shadow: 0 6px 16px rgba(255,183,38,0.4), inset 0 -3px 6px rgba(0,0,0,0.2);
  animation: float 6s ease-in-out infinite;
}
.coin::after { content: "13L"; position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; color: #1a1200; font-size: 0.6rem; }
.coin--1 { width: 56px; height: 56px; top: 8%; left: 6%; animation-delay: 0s; }
.coin--2 { width: 40px; height: 40px; bottom: 14%; left: 2%; animation-delay: 1.4s; }
.coin--3 { width: 46px; height: 46px; top: 18%; right: 4%; animation-delay: 0.7s; }
.coin--4 { width: 34px; height: 34px; bottom: 6%; right: 10%; animation-delay: 2.1s; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(6deg); }
}
@media (prefers-reduced-motion: reduce) {
  .coin { animation: none; }
  html { scroll-behavior: auto; }
}

@media (min-width: 900px) {
  .hero .container { grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: var(--space-7); }
  .hero-copy h1 { font-size: var(--fs-4xl); }
}
@media (min-width: 1200px) {
  .hero-copy h1 { font-size: var(--fs-5xl); }
}

/* ---------- Inner page hero ---------- */
.page-hero { padding-top: var(--space-6); padding-bottom: var(--space-7); position: relative; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 520px;
  background: var(--gradient-hero); pointer-events: none; z-index: 0;
}
.page-hero .container { position: relative; z-index: 1; max-width: 800px; }
.page-hero h1 { font-size: var(--fs-3xl); margin-bottom: var(--space-4); }
.page-hero .lede { font-size: var(--fs-md); color: var(--text-secondary); max-width: 62ch; margin-bottom: var(--space-6); }
.page-hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
@media (min-width: 900px) { .page-hero h1 { font-size: var(--fs-4xl); } }

/* ---------- Numbered steps ---------- */
.steps { display: grid; gap: var(--space-5); max-width: 760px; }
.step { display: flex; gap: var(--space-4); align-items: flex-start; }
.step .num {
  flex: none; width: 44px; height: 44px; border-radius: 50%;
  background: var(--gradient-primary); color: #fff; font-weight: 800; font-family: var(--font-display);
  display: grid; place-items: center; box-shadow: var(--shadow-glow);
}
.step .content h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); }
.step .content p { color: var(--text-secondary); font-size: var(--fs-sm); }

/* ---------- Stats ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-5); text-align: center;
}
.stat-card .value { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 800; color: var(--secondary); }
.stat-card .label { font-size: var(--fs-xs); color: var(--text-secondary); margin-top: var(--space-2); }

/* ---------- Cards / Grids ---------- */
.grid { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) { .grid-4 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--card); background-image: var(--gradient-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-5); transition: transform var(--dur-base) var(--ease), border-color var(--dur-base), box-shadow var(--dur-base);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }

.feature-card .icon {
  width: 52px; height: 52px; border-radius: var(--radius-md); display: grid; place-items: center;
  background: rgba(255,179,38,0.08); border: 1px solid var(--border); margin-bottom: var(--space-4); font-size: 1.4rem;
}
.feature-card h3 { font-size: var(--fs-md); margin-bottom: var(--space-2); }
.feature-card p { color: var(--text-secondary); font-size: var(--fs-sm); }

.game-card { padding: 0; overflow: hidden; }
.game-card .thumb {
  aspect-ratio: 4/3; background: linear-gradient(160deg, #1e1e1e, #0d0d0d);
  display: grid; place-items: center; position: relative; font-size: 2.2rem;
}
.game-card .thumb::after { content: ""; position: absolute; inset: 0; background: var(--gradient-hero); opacity: 0.6; }
.game-card .badge {
  position: absolute; top: 10px; left: 10px; z-index: 1;
  background: var(--gradient-primary); color: #fff; font-size: 0.65rem; font-weight: 800;
  padding: 4px 10px; border-radius: var(--radius-full); letter-spacing: 0.04em;
}
.game-card .body { padding: var(--space-4); }
.game-card h3 { font-size: var(--fs-base); margin-bottom: var(--space-1); }
.game-card p { color: var(--text-muted); font-size: var(--fs-xs); }

.category-pill {
  display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4);
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md);
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.category-pill:hover { border-color: var(--secondary); transform: translateY(-2px); }
.category-pill .emoji { font-size: 1.3rem; }
.category-pill span.name { font-weight: 700; font-size: var(--fs-sm); }

.review-card blockquote { color: var(--text-secondary); font-size: var(--fs-sm); margin-bottom: var(--space-4); }
.review-card .stars { color: var(--gold); font-size: var(--fs-sm); margin-bottom: var(--space-3); letter-spacing: 2px; }
.review-card .author { display: flex; align-items: center; gap: var(--space-3); }
.review-card .avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--gradient-primary); display: grid; place-items: center;
  font-weight: 800; font-size: var(--fs-xs);
}
.review-card .author strong { font-size: var(--fs-sm); display: block; }
.review-card .author span { font-size: var(--fs-xs); color: var(--text-muted); }

.article-card { padding: 0; overflow: hidden; }
.article-card .thumb {
  aspect-ratio: 16/9; background: linear-gradient(160deg, #1c1c1c, #0d0d0d); display: grid; place-items: center; font-size: 1.8rem;
}
.article-card .body { padding: var(--space-5); }
.article-card .tag { font-size: var(--fs-xs); color: var(--secondary); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.article-card h3 { font-size: var(--fs-md); margin: var(--space-2) 0; }
.article-card p { color: var(--text-secondary); font-size: var(--fs-sm); margin-bottom: var(--space-3); }
.article-card .meta { font-size: var(--fs-xs); color: var(--text-muted); }

/* ---------- FAQ Accordion ---------- */
.faq-list { display: flex; flex-direction: column; gap: var(--space-3); max-width: 820px; margin-inline: auto; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5); text-align: left; font-weight: 700; font-size: var(--fs-sm);
}
.faq-question .plus { flex: none; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; position: relative; transition: transform var(--dur-base) var(--ease); }
.faq-question .plus::before, .faq-question .plus::after { content: ""; position: absolute; background: var(--secondary); border-radius: 2px; }
.faq-question .plus::before { width: 12px; height: 2px; }
.faq-question .plus::after { width: 2px; height: 12px; transition: opacity var(--dur-fast); }
.faq-item[open] .faq-question .plus { transform: rotate(180deg); background: var(--gradient-primary); border-color: transparent; }
.faq-item[open] .faq-question .plus::after { opacity: 0; }
.faq-answer { padding: 0 var(--space-5) var(--space-5); color: var(--text-secondary); font-size: var(--fs-sm); }
.faq-item summary { list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { padding-block: var(--space-4); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); font-weight: 600; }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: var(--space-2); color: var(--text-muted); }
.breadcrumb li[aria-current="page"] { color: var(--secondary); }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, rgba(255,90,45,0.12), rgba(255,179,38,0.06));
  border: 1px solid var(--border-strong); border-radius: var(--radius-xl);
  padding: var(--space-7) var(--space-5); text-align: center; position: relative; overflow: hidden;
}
.cta-banner::before { content: ""; position: absolute; inset: 0; background: var(--gradient-hero); opacity: 0.5; }
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { font-size: var(--fs-2xl); margin-bottom: var(--space-3); }
.cta-banner p { color: var(--text-secondary); margin-bottom: var(--space-6); max-width: 560px; margin-inline: auto; }
.cta-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: center; }

/* ---------- Newsletter ---------- */
.newsletter { display: grid; gap: var(--space-5); align-items: center; }
.newsletter-form { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.newsletter-form input[type="email"] {
  flex: 1 1 240px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-full);
  padding: 14px 22px; color: var(--text);
}
.newsletter-form input[type="email"]::placeholder { color: var(--text-muted); }
@media (min-width: 900px) { .newsletter { grid-template-columns: 1fr auto; } }

/* ---------- Contact form ---------- */
.contact-form { display: grid; gap: var(--space-4); }
.form-field { display: flex; flex-direction: column; gap: var(--space-2); }
.form-field label { font-size: var(--fs-xs); font-weight: 700; color: var(--text-secondary); }
.form-field input, .form-field textarea {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 13px 16px; color: var(--text); resize: vertical;
}
.form-field input:focus, .form-field textarea:focus { border-color: var(--secondary); }
.form-row { display: grid; gap: var(--space-4); }
@media (min-width: 640px) { .form-row { grid-template-columns: 1fr 1fr; } }
.contact-channels { display: grid; gap: var(--space-4); }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-elevated); border-top: 1px solid var(--border); padding-block: var(--space-8) var(--space-6); }
.footer-top { display: grid; gap: var(--space-7); margin-bottom: var(--space-7); }
.footer-brand p { color: var(--text-secondary); font-size: var(--fs-sm); margin: var(--space-4) 0; max-width: 38ch; }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border); display: grid; place-items: center; font-size: 0.9rem;
  transition: border-color var(--dur-base), color var(--dur-base);
}
.footer-social a:hover { border-color: var(--secondary); color: var(--secondary); }
.footer-links-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.footer-col h4 { font-size: var(--fs-sm); color: var(--text); margin-bottom: var(--space-4); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: var(--fs-sm); color: var(--text-secondary); }
.footer-col a:hover { color: var(--secondary); }
.footer-legal-notice {
  font-size: var(--fs-xs); color: var(--text-muted); line-height: 1.7; border-top: 1px solid var(--border);
  padding-top: var(--space-6); margin-bottom: var(--space-5);
}
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); border-top: 1px solid var(--border); padding-top: var(--space-5); }
.footer-bottom p { font-size: var(--fs-xs); color: var(--text-muted); }
.footer-bottom-links { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.footer-bottom-links a { font-size: var(--fs-xs); color: var(--text-muted); }
.footer-bottom-links a:hover { color: var(--secondary); }

@media (min-width: 768px) { .footer-links-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .footer-top { grid-template-columns: 1.3fr repeat(4, 1fr); } }

/* ---------- Floating / sticky CTAs ---------- */
.floating-download {
  position: fixed; right: var(--space-4); bottom: var(--space-4); z-index: 80;
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--gradient-primary); color: #fff; padding: 14px 20px; border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(255,90,45,0.45); font-weight: 700; font-size: var(--fs-sm);
  transform: translateY(120%); transition: transform var(--dur-slow) var(--ease);
}
.floating-download.is-visible { transform: translateY(0); }

.sticky-cta-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 79;
  background: rgba(10,10,10,0.9); backdrop-filter: blur(16px);
  border-top: 1px solid var(--border); padding: var(--space-3) var(--space-4);
  display: flex; gap: var(--space-3); transform: translateY(100%); transition: transform var(--dur-slow) var(--ease);
}
.sticky-cta-bar.is-visible { transform: translateY(0); }
.sticky-cta-bar .btn { flex: 1; }
@media (min-width: 1024px) { .sticky-cta-bar { display: none; } }

/* ---------- Utility ---------- */
.mt-2 { margin-top: var(--space-2); } .mt-4 { margin-top: var(--space-4); } .mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); } .mb-4 { margin-bottom: var(--space-4); } .mb-6 { margin-bottom: var(--space-6); }
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* Prose content (article pages) */
.prose { max-width: 760px; margin-inline: auto; color: var(--text-secondary); font-size: var(--fs-md); }
.prose h2 { color: var(--text); font-size: var(--fs-xl); margin: var(--space-7) 0 var(--space-4); }
.prose h3 { color: var(--text); font-size: var(--fs-lg); margin: var(--space-6) 0 var(--space-3); }
.prose p { margin-bottom: var(--space-4); }
.prose ul, .prose ol { margin: 0 0 var(--space-4) var(--space-5); list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: var(--space-2); }
.prose a { color: var(--secondary); text-decoration: underline; text-underline-offset: 3px; }
.prose strong { color: var(--text); }

.related-articles { margin-top: var(--space-8); }
.internal-links-box {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--space-5); margin: var(--space-6) 0;
}
.internal-links-box h4 { font-size: var(--fs-sm); color: var(--secondary); margin-bottom: var(--space-3); }
.internal-links-box ul { display: flex; flex-direction: column; gap: var(--space-2); }
.internal-links-box a { font-size: var(--fs-sm); color: var(--text-secondary); font-weight: 600; }
.internal-links-box a:hover { color: var(--secondary); }