/* ==========================================================================
   RouteGameHub — Design System
   Cinematic dark theme: near-black canvas, glowing accent gradients,
   bold display type, full-width long-scroll sections.
   ========================================================================== */

:root {
  --bg: #05070d;
  --bg-alt: #080b14;
  --bg-elevated: #0d1220;
  --bg-card: #10162a;
  --bg-card-hover: #141b33;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text: #eef1f7;
  --text-dim: #9aa4bd;
  --text-faint: #667089;

  --blue: #38bdf8;
  --purple: #a78bfa;
  --orange: #fb923c;
  --green: #4ade80;
  --cyan: #67e8f9;

  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #a78bfa 100%);
  --gradient-warm: linear-gradient(135deg, #fb923c 0%, #f472b6 100%);

  --shadow-glow: 0 0 80px -20px rgba(56, 189, 248, 0.35);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --font-display: 'Segoe UI', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-body: 'Segoe UI', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;

  --header-height: 72px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
  color: var(--text-dim);
}

ul {
  padding-left: 1.2em;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Background ambience -------------------------------------------------- */

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(560px circle at 12% -5%, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(680px circle at 88% 10%, rgba(167, 139, 250, 0.14), transparent 60%),
    radial-gradient(600px circle at 50% 100%, rgba(251, 146, 60, 0.08), transparent 60%);
}

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gradient-primary);
  color: #04101c;
}

.btn-primary:hover {
  box-shadow: 0 8px 30px -8px rgba(56, 189, 248, 0.55);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 0.85rem;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #04101c;
  font-weight: 900;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-dim);
  transition: color 0.15s ease;
  position: relative;
}

.main-nav a:hover,
.main-nav a[aria-current='page'] {
  color: var(--text);
}

.main-nav a.nav-cta,
.main-nav a.nav-cta:hover {
  color: #04101c;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* Footer -------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 64px 0 32px;
  margin-top: 96px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-dim);
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-faint);
  font-size: 0.82rem;
}

.footer-disclaimer {
  color: var(--text-faint);
  font-size: 0.8rem;
  max-width: 720px;
  margin: 0 0 24px;
}

/* Hero ------------------------------------------------------------------- */

.hero {
  position: relative;
  padding: 96px 0 72px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  max-width: 900px;
  margin: 0 auto 20px;
}

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

.hero-sub {
  max-width: 620px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.hero-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
}

.hero-stat span {
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* Section shell ------------------------------------------------------- */

.section {
  padding: 72px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0;
}

.section-kicker {
  color: var(--purple);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}

/* Game grid / cards ----------------------------------------------------- */

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.game-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(220px circle at 20% 0%, var(--card-accent, var(--blue)) 0%, transparent 70%);
  opacity: 0.12;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.game-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.game-card:hover::before {
  opacity: 0.2;
}

.game-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.game-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--card-accent, var(--blue)) 18%, transparent);
  color: var(--card-accent, var(--blue));
}

.game-icon svg {
  width: 26px;
  height: 26px;
}

.badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  text-transform: uppercase;
}

.badge-age {
  color: var(--orange);
  border-color: rgba(251, 146, 60, 0.4);
}

.game-card h3 {
  font-size: 1.35rem;
  margin: 0;
}

.game-card p {
  font-size: 0.92rem;
  margin: 0;
  flex-grow: 1;
}

.game-card-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-faint);
}

.game-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--card-accent, var(--blue));
}

.game-card-cta svg {
  width: 16px;
  height: 16px;
  transition: transform 0.15s ease;
}

.game-card:hover .game-card-cta svg {
  transform: translateX(4px);
}

/* Game hero (individual game pages) ------------------------------------ */

.game-hero {
  position: relative;
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(700px circle at 50% -10%, color-mix(in srgb, var(--card-accent, var(--blue)) 22%, transparent), transparent 65%);
}

.game-hero-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.game-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 14px;
}

.game-hero-tagline {
  font-size: 1.1rem;
  max-width: 640px;
  margin-bottom: 28px;
}

.game-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 8px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-item span:first-child {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

.meta-item span:last-child {
  font-weight: 700;
  color: var(--text);
}

/* Game stage (canvas area) ---------------------------------------------- */

.game-stage-wrap {
  padding: 40px 0 24px;
}

.game-stage {
  position: relative;
  background: #01030a;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
}

.game-stage canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
}

.game-hud {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  pointer-events: none;
  z-index: 3;
  flex-wrap: wrap;
}

.game-hud .hud-pill {
  background: rgba(5, 7, 13, 0.65);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
  color: var(--text);
}

.game-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 18px;
  text-align: center;
  background: rgba(1, 3, 10, 0.86);
  z-index: 5;
  padding: 24px;
}

.game-overlay[hidden] {
  display: none;
}

.game-overlay h2 {
  font-size: 1.8rem;
  margin: 0;
}

.game-overlay p {
  margin: 0;
  max-width: 420px;
}

.game-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 18px;
  color: var(--text-faint);
  font-size: 0.85rem;
}

.game-controls-bar .btn {
  flex-shrink: 0;
}

/* How to play / info cards ------------------------------------------------ */

.info-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.steps-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--card-accent, var(--blue));
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.info-card dl {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-card dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
}

.info-card dd {
  margin: 0;
  font-weight: 600;
}

/* Generic content page ---------------------------------------------------- */

.page-hero {
  padding: 80px 0 40px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
}

.prose {
  max-width: 760px;
  margin: 0 auto;
}

.prose h2 {
  font-size: 1.5rem;
  margin-top: 2em;
}

.prose h3 {
  font-size: 1.15rem;
  margin-top: 1.6em;
}

.prose p,
.prose li {
  color: var(--text-dim);
}

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.updated-note {
  color: var(--text-faint);
  font-size: 0.85rem;
  margin-bottom: 2.5em;
}

/* Cards row (about/contact stats) ----------------------------------------- */

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.value-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.9rem;
  margin: 0;
}

/* Contact form -------------------------------------------------------- */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.field-error {
  color: var(--orange);
  font-size: 0.8rem;
  margin-top: 6px;
}

.form-alert {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.form-alert.success {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.35);
  color: var(--green);
}

.form-alert.error {
  background: rgba(251, 146, 60, 0.1);
  border: 1px solid rgba(251, 146, 60, 0.35);
  color: var(--orange);
}

.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-info-list .icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-list .icon-wrap svg {
  width: 20px;
  height: 20px;
}

/* Age gate ------------------------------------------------------------ */

.age-gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(2, 4, 10, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.age-gate[hidden] {
  display: none;
}

.age-gate-card {
  max-width: 440px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  box-shadow: var(--shadow-glow);
}

.age-gate-card h2 {
  font-size: 1.5rem;
}

.age-gate-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.age-gate-fine {
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-top: 18px;
}

/* Cookie banner --------------------------------------------------------- */

.cookie-banner {
  position: fixed;
  left: 20px;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner p {
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* CTA band ---------------------------------------------------------------- */

.cta-band {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(500px circle at 50% 0%, rgba(167, 139, 250, 0.25), transparent 70%);
}

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

.cta-band h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

/* Responsive ------------------------------------------------------------- */

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .info-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 16px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .main-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-cta {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero {
    padding: 64px 0 48px;
  }

  .section {
    padding: 56px 0;
  }
}