/* ================================================================
   SNOW RIDER — Cyber Glacier Theme
   ================================================================ */
:root{
  --ice:#D2EAF1;
  --ice-dim:#8ab8cc;
  --dark:#080e1a;
  --dark-card:rgba(8,14,26,.72);
  --neon:#00e5ff;
  --neon-glow:0 0 20px rgba(0,229,255,.35), 0 0 60px rgba(0,229,255,.12);
  --pink:#ff2d75;
  --gold:#ffd93d;
  --glass:rgba(210,234,241,.06);
  --glass-border:rgba(210,234,241,.18);
  --radius:24px;
  --shadow:0 20px 60px rgba(0,0,0,.7);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:#080e1a;
  color:var(--ice);
  min-height:100vh;
  overflow-x:hidden;
}
a{color:var(--neon);text-decoration:none}
a:hover{color:#fff}

.bg-grid{
  position:fixed;inset:0;z-index:0;
  background-image:
    linear-gradient(rgba(0,229,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,.04) 1px, transparent 1px);
  background-size:60px 60px;
  pointer-events:none;
}
.bg-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(0,229,255,.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 70%, rgba(255,45,117,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(210,234,241,.04) 0%, transparent 40%);
}
.bg-orb{
  position:fixed;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0;
  animation:orbFloat 20s ease-in-out infinite alternate;
}
.bg-orb.o1{width:500px;height:500px;top:-10%;left:-10%;background:rgba(0,229,255,.08)}
.bg-orb.o2{width:400px;height:400px;bottom:-10%;right:-5%;background:rgba(255,45,117,.06);animation-delay:-7s}
.bg-orb.o3{width:300px;height:300px;top:40%;left:50%;background:rgba(210,234,241,.05);animation-delay:-14s}
@keyframes orbFloat{0%{transform:translate(0,0) scale(1)}100%{transform:translate(40px,-30px) scale(1.15)}}

.wrap{max-width:1140px;margin:0 auto;padding:0 22px;position:relative;z-index:1}

/* ===== HEADER ===== */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(8,14,26,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--glass-border);
}
.site-head .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;gap:12px;flex-wrap:wrap;
}
.logo{
  display:flex;align-items:center;gap:12px;
  font-weight:900;font-size:18px;letter-spacing:.5px;
  color:#fff;text-decoration:none!important;
}
.logo-icon{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(135deg,#00e5ff,#0066ff);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;box-shadow:var(--neon-glow);
}
.logo-text{line-height:1.1}
.logo-text small{display:block;font-size:9px;letter-spacing:2.5px;color:var(--ice-dim);font-weight:600}
.nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav a{
  padding:8px 16px;border-radius:999px;font-weight:700;font-size:13px;
  color:var(--ice-dim);border:1px solid transparent;transition:all .25s;
}
.nav a:hover,.nav a.on{
  color:#fff;border-color:rgba(0,229,255,.3);background:rgba(0,229,255,.06);
}
.nav a.play{
  background:linear-gradient(135deg,#00e5ff,#0066ff);
  color:#080e1a;border-color:transparent;
  box-shadow:var(--neon-glow);
}
.nav a.play:hover{transform:scale(1.04)}

/* ===== HERO ===== */
.hero{padding:20px 0 10px;text-align:center;position:relative}
.hero h1{
  font-size:clamp(32px,6vw,64px);font-weight:900;letter-spacing:-1px;
  background:linear-gradient(180deg,#ffffff 20%,#D2EAF1 50%,#00e5ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 60px rgba(0,229,255,.2);
}
.hero h1 .hl{color:var(--neon);-webkit-text-fill-color:var(--neon)}
.hero p{
  font-size:clamp(15px,2vw,20px);color:var(--ice-dim);
  margin:8px 0 16px;font-weight:500;
}
.chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.chip{
  padding:6px 18px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--glass);border:1px solid var(--glass-border);
  backdrop-filter:blur(4px);color:var(--ice);
}

/* ===== GAME CONSOLE ===== */
.console-wrap{
  display:grid;grid-template-columns:1fr 260px;gap:24px;
  margin:28px 0 0;position:relative;
}
.console{
  background:var(--dark-card);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  overflow:hidden;
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(210,234,241,.06);
}
.console-top{
  display:flex;align-items:center;gap:10px;
  padding:12px 18px;
  border-bottom:1px solid var(--glass-border);
  font-size:12px;font-weight:600;color:var(--ice-dim);
}
.console-top .dot{width:10px;height:10px;border-radius:50%}
.dot.green{background:#2ecc71;box-shadow:0 0 10px rgba(46,204,113,.4)}
.dot.yellow{background:#f1c40f}
.dot.red{background:#e74c3c}
.console-top .tag{margin-left:auto;color:var(--neon);font-size:10px;letter-spacing:1.5px;text-transform:uppercase}
#gameContainer{
  width:100%;aspect-ratio:1100/685;background:#0a1628;
  position:relative;overflow:hidden;
}
.console-bottom{
  display:flex;gap:12px;padding:14px 18px;
  border-top:1px solid var(--glass-border);
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;border:none;border-radius:14px;
  font-weight:800;font-size:14px;font-family:inherit;
  cursor:pointer;transition:all .2s;
  background:linear-gradient(135deg,#00e5ff,#0066ff);
  color:#080e1a;box-shadow:var(--neon-glow);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(0,229,255,.4)}
.btn:active{transform:scale(.96)}
.btn.gold{background:linear-gradient(135deg,#ffd93d,#f09300);box-shadow:0 0 20px rgba(255,217,61,.3)}
.btn.gold:hover{box-shadow:0 0 30px rgba(255,217,61,.4)}
.btn.outline{background:transparent;border:1px solid var(--glass-border);color:var(--ice)}
.btn.outline:hover{background:rgba(210,234,241,.06)}

/* ===== SIDE PANEL ===== */
.side-panel{display:flex;flex-direction:column;gap:16px}
.side-card{
  background:var(--dark-card);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:20px 22px;
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.side-card h3{
  font-size:13px;text-transform:uppercase;letter-spacing:2px;
  color:var(--ice-dim);margin-bottom:12px;font-weight:700;
}
.side-card .stat-row{
  display:flex;justify-content:space-between;padding:6px 0;
  border-bottom:1px solid rgba(210,234,241,.06);
}
.side-card .stat-row:last-child{border-bottom:0}
.side-card .stat-label{color:var(--ice-dim);font-size:13px}
.side-card .stat-value{font-weight:800;font-size:15px;color:#fff}
.side-card .stat-value.gold{color:var(--gold)}
.side-card .stat-value.pink{color:var(--pink)}
.controls-mini{
  display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px;
}
.controls-mini kbd{
  background:rgba(210,234,241,.08);
  border:1px solid var(--glass-border);
  border-radius:8px;
  padding:6px 10px;font-size:12px;font-weight:700;
  text-align:center;color:var(--ice);
  font-family:inherit;
}

/* ===== SECTIONS ===== */
section{margin:56px 0 0}
.sec-head{
  display:flex;align-items:center;gap:14px;margin-bottom:22px;
}
.sec-head .line{flex:1;height:1px;background:linear-gradient(90deg,var(--glass-border),transparent)}
.sec-head h2{
  font-size:clamp(20px,2.8vw,28px);font-weight:800;
  background:linear-gradient(90deg,#fff,var(--ice));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.sec-head .badge{
  font-size:10px;font-weight:800;letter-spacing:1.5px;
  padding:4px 14px;border-radius:999px;
  background:rgba(0,229,255,.12);border:1px solid rgba(0,229,255,.2);
  color:var(--neon);text-transform:uppercase;
}

/* ===== FEATURES ===== */
.features-grid{
  display:grid;grid-template-columns:1.4fr 0.6fr 1fr;
  gap:18px;
}
.feature-card{
  background:var(--dark-card);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  padding:24px 22px;
  backdrop-filter:blur(8px);
  transition:all .3s;
}
.feature-card:hover{
  border-color:rgba(0,229,255,.3);
  transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,.4);
}
.feature-card .icon{font-size:36px;margin-bottom:10px;display:block}
.feature-card h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:6px}
.feature-card p{font-size:13.5px;color:var(--ice-dim);line-height:1.6}
.feature-card.tall{grid-row:span 2}
.feature-card.wide{grid-column:span 2}
.feature-card.accent{border-color:rgba(0,229,255,.15)}

/* ===== GUIDES ===== */
.guides-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.post-card{
  background:var(--dark-card);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:all .3s;
  text-decoration:none!important;display:block;
}
.post-card:hover{
  transform:translateY(-6px);
  border-color:rgba(0,229,255,.3);
  box-shadow:0 16px 48px rgba(0,0,0,.5);
}
.post-card img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  display:block;
}
.post-card .pc-body{padding:14px 16px 16px}
.post-card .pc-tag{
  font-size:9px;font-weight:800;letter-spacing:1.8px;
  text-transform:uppercase;color:var(--neon);
}
.post-card h3{
  font-size:15px;font-weight:800;color:#fff;
  margin:4px 0 6px;line-height:1.3;
}
.post-card p{
  font-size:12.5px;color:var(--ice-dim);
  margin:0;line-height:1.5;
}
.post-card.large{grid-column:span 2;grid-row:span 2}
.post-card.large img{aspect-ratio:16/7}

/* ===== ABOUT + FAQ ===== */
.about-faq-grid{
  display:grid;grid-template-columns:1.3fr 0.7fr;
  gap:24px;
}
.about-text p{
  font-size:15px;line-height:1.8;color:var(--ice-dim);
  margin-bottom:14px;
}
.about-text strong{color:#fff}
.details-list{display:flex;flex-direction:column;gap:8px}
.details-list details{
  background:var(--dark-card);
  border:1px solid var(--glass-border);
  border-radius:14px;
  padding:12px 16px;
}
.details-list details summary{
  cursor:pointer;font-weight:700;font-size:14px;color:#fff;
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.details-list details summary::-webkit-details-marker{display:none}
.details-list details summary::after{
  content:'▸';color:var(--neon);transition:transform .25s;
}
.details-list details[open] summary::after{transform:rotate(90deg)}
.details-list details p{
  color:var(--ice-dim);font-size:13.5px;margin-top:10px;line-height:1.6;
}

/* ===== FOOTER ===== */
.site-foot{
  margin-top:70px;padding:44px 0 24px;
  border-top:1px solid var(--glass-border);
  background:rgba(8,14,26,.5);
}
.foot-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:30px;padding-bottom:24px;
}
.foot-brand .logo{margin-bottom:10px}
.foot-brand p{color:var(--ice-dim);font-size:13.5px;line-height:1.7;max-width:320px}
.foot-grid h4{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--ice-dim);font-weight:700;margin-bottom:12px}
.foot-grid ul{list-style:none}
.foot-grid li{margin:6px 0}
.foot-grid a{color:var(--ice-dim);font-size:13px;transition:color .2s}
.foot-grid a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid var(--glass-border);
  padding-top:18px;text-align:center;
  font-size:12px;color:var(--ice-dim);
}
.foot-bottom b{color:var(--neon)}

/* ===== START SCREEN OVERLAY ===== */
#startScreen{
  position:absolute;top:0;left:0;right:0;bottom:0;z-index:20;
  display:flex;align-items:center;justify-content:center;
  background:rgba(8,14,26,.7);backdrop-filter:blur(8px);
  transition:opacity .5s;
}
#startScreen.hidden{opacity:0;pointer-events:none}
.start-card{
  text-align:center;padding:40px 36px;
  background:rgba(8,14,26,.85);border:1px solid var(--glass-border);
  border-radius:var(--radius);max-width:480px;width:94%;
  box-shadow:0 30px 80px rgba(0,0,0,.8);
}
.start-card .logo-icon-big{
  font-size:72px;display:block;margin-bottom:10px;
}
.start-card h2{
  font-size:clamp(28px,5vw,42px);font-weight:900;
  background:linear-gradient(180deg,#ffffff,#00e5ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:6px;
}
.start-card .sub{color:var(--ice-dim);font-size:16px;font-weight:600;margin-bottom:18px}
.start-card .btn-start{
  display:inline-block;padding:16px 56px;border:none;border-radius:16px;
  font-weight:900;font-size:22px;font-family:inherit;
  background:linear-gradient(135deg,#00e5ff,#0066ff);
  color:#080e1a;cursor:pointer;box-shadow:var(--neon-glow);
  transition:transform .15s;
}
.start-card .btn-start:hover{transform:scale(1.05)}
.start-card .btn-start:active{transform:scale(.95)}
.start-card .controls-hint{
  margin-top:16px;font-size:13px;color:var(--ice-dim);
}
.start-card .controls-hint kbd{
  background:rgba(255,255,255,.1);border:1px solid var(--glass-border);
  border-radius:6px;padding:2px 10px;font-family:inherit;font-weight:700;color:var(--ice);
}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .console-wrap{grid-template-columns:1fr}
  .side-panel{display:grid;grid-template-columns:1fr 1fr;gap:16px}
}
@media(max-width:900px){
  .features-grid{grid-template-columns:1fr 1fr}
  .feature-card.tall{grid-row:span 1}
  .feature-card.wide{grid-column:span 2}
  .guides-grid{grid-template-columns:repeat(2,1fr)}
  .post-card.large{grid-column:span 2;grid-row:span 1}
  .about-faq-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .site-head .wrap{flex-direction:column;align-items:stretch;gap:8px}
  .nav{justify-content:center}
  .hero h1{font-size:28px}
  .console-wrap{grid-template-columns:1fr}
  .side-panel{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .feature-card.wide{grid-column:span 1}
  .guides-grid{grid-template-columns:1fr}
  .post-card.large{grid-column:span 1}
  .foot-grid{grid-template-columns:1fr}
  .btn{padding:10px 18px;font-size:13px}
  .console-top .tag{display:none}
}
@media(max-width:420px){
  .nav a:not(.play){display:none}
  .logo-text{font-size:15px}
}