:root{
  --bg:#070912;
  --bg-2:#0b1020;
  --ink:#eaf0fb;
  --muted:#93a0bd;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --accent:#7c5cff;       /* violet */
  --accent-2:#22d3ee;     /* cyan   */
  --accent-3:#f472b6;     /* pink   */
  --ok:#34d399;
  --grad:linear-gradient(120deg,var(--accent),var(--accent-2));
  --shadow:0 20px 60px -20px rgba(0,0,0,.7);
  --radius:20px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  line-height:1.6; overflow-x:hidden;
}
h1,h2,h3,h4,.brand{font-family:"Space Grotesk",Inter,sans-serif; letter-spacing:-.02em}
a{color:inherit; text-decoration:none}
.muted{color:var(--muted)}
.hidden{display:none !important}

/* ── aurora backdrop ─────────────────────────────────────────── */
.bg-aurora{position:fixed; inset:0; z-index:-1; overflow:hidden; background:
  radial-gradient(1200px 700px at 80% -10%, rgba(124,92,255,.18), transparent 60%),
  radial-gradient(900px 600px at 0% 10%, rgba(34,211,238,.12), transparent 55%),
  var(--bg);}
.blob{position:absolute; border-radius:50%; filter:blur(80px); opacity:.5; animation:float 18s ease-in-out infinite}
.b1{width:480px;height:480px;background:#6d4bff;top:-120px;left:-80px}
.b2{width:520px;height:520px;background:#1bc6e6;bottom:-160px;right:-100px;animation-delay:-6s}
.b3{width:380px;height:380px;background:#f472b6;top:40%;left:55%;opacity:.28;animation-delay:-11s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-30px) scale(1.08)}}

/* ── glass primitive ─────────────────────────────────────────── */
.glass{background:var(--glass); backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%); border:1px solid var(--border);
  border-radius:var(--radius); box-shadow:var(--shadow)}

/* ── nav ─────────────────────────────────────────────────────── */
.nav{position:sticky; top:14px; z-index:50; margin:14px auto; max-width:1180px;
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 20px; border-radius:16px}
.brand{font-weight:700; font-size:18px; display:flex; align-items:center; gap:10px}
.brand-thin{font-weight:500; color:var(--muted)}
.logo-dot{width:14px;height:14px;border-radius:50%;background:var(--grad);box-shadow:0 0 16px var(--accent)}
.nav-right{display:flex; align-items:center; gap:18px}
.nav-link{color:var(--muted); font-size:14px; font-weight:500; transition:color .2s}
.nav-link:hover{color:var(--ink)}

.badge{font-size:12px; font-weight:600; padding:4px 11px; border-radius:999px; border:1px solid var(--border)}
.badge-muted{color:var(--muted)}
.badge-gpu{color:#04121c; background:linear-gradient(120deg,var(--ok),var(--accent-2)); border:none}
.badge-cpu{color:var(--ink); background:var(--glass-2)}

/* ── hero ────────────────────────────────────────────────────── */
.hero{max-width:1000px; margin:60px auto 30px; padding:0 24px; text-align:center}
.eyebrow{text-transform:uppercase; letter-spacing:.22em; font-size:12px; color:var(--muted); margin-bottom:18px}
.hero h1{font-size:clamp(38px,6vw,68px); line-height:1.04; margin:0 0 18px; font-weight:700}
.grad-text{background:linear-gradient(120deg,var(--accent),var(--accent-3),var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent}
.lede{font-size:clamp(16px,2vw,20px); color:#c2cce0; max-width:680px; margin:0 auto 30px}
.hero-cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}

.btn{cursor:pointer; font-family:inherit; font-weight:600; font-size:15px; border-radius:12px;
  padding:13px 22px; border:1px solid transparent; transition:transform .15s, box-shadow .2s, background .2s; display:inline-flex; align-items:center; gap:8px}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad); color:#0a0c16; box-shadow:0 10px 30px -8px rgba(124,92,255,.6)}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 16px 40px -8px rgba(124,92,255,.8)}
.btn-ghost{background:var(--glass-2); color:var(--ink); border-color:var(--border)}
.btn-ghost:hover{border-color:var(--border-strong)}
.btn-mini{padding:8px 14px; font-size:13px; background:var(--glass-2); border-color:var(--border)}
.btn-mini:hover{border-color:var(--border-strong)}

/* ── service cards ───────────────────────────────────────────── */
.cards{display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin:48px auto 0; max-width:780px}
.card{padding:24px; text-align:left; transition:transform .2s, border-color .2s}
.card:hover{transform:translateY(-4px); border-color:var(--border-strong)}
.card h3{margin:14px 0 8px; font-size:21px}
.card p{color:var(--muted); font-size:14.5px; margin:0 0 16px}
.card-tag{display:inline-block; font-size:11px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  padding:4px 10px; border-radius:999px}
.tag-eu{background:rgba(34,211,238,.14); color:#7fe9fb}
.tag-us{background:rgba(124,92,255,.16); color:#c3b4ff}
.card-link{color:var(--accent-2); font-weight:600; font-size:14px}
.card-link:hover{text-decoration:underline}

/* ── studio ──────────────────────────────────────────────────── */
.studio{max-width:1180px; margin:80px auto 0; padding:0 24px}
.section-head h2{font-size:clamp(26px,4vw,38px); margin:0 0 8px}
.section-head p{margin:0 0 22px}
.tabs{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:18px}
.tab{cursor:pointer; font-family:inherit; font-weight:600; font-size:13.5px; padding:9px 16px; border-radius:12px;
  background:var(--glass); border:1px solid var(--border); color:var(--muted); transition:all .15s}
.tab:hover{color:var(--ink); border-color:var(--border-strong)}
.tab.on{background:var(--grad); color:#0a0c16; border-color:transparent; box-shadow:0 8px 22px -8px rgba(124,92,255,.6)}
.studio-grid{display:grid; grid-template-columns:330px 1fr; gap:22px; align-items:start}

.controls{padding:22px; position:sticky; top:90px; display:flex; flex-direction:column; gap:20px}
.ctrl{display:flex; flex-direction:column; gap:9px}
.ctrl > label{font-size:13px; font-weight:600; color:#cdd6ea; display:flex; justify-content:space-between; align-items:center}
.val{color:var(--accent-2); font-weight:700}
.hint{color:var(--muted); font-size:11.5px; font-weight:400}
input[type=date]{background:var(--bg-2); color:var(--ink); border:1px solid var(--border);
  border-radius:10px; padding:10px 12px; font-family:inherit; font-size:14px; color-scheme:dark}
input[type=date]:focus{outline:none; border-color:var(--accent)}

.chips{display:flex; flex-wrap:wrap; gap:8px}
.chip{cursor:pointer; user-select:none; font-size:13px; font-weight:600; padding:7px 14px; border-radius:999px;
  background:var(--glass-2); border:1px solid var(--border); color:var(--muted); transition:all .15s}
.chip:hover{border-color:var(--border-strong); color:var(--ink)}
.chip.on{background:var(--grad); color:#0a0c16; border-color:transparent; box-shadow:0 6px 18px -6px rgba(124,92,255,.6)}
.add-row{display:flex; align-items:center; gap:8px; margin-top:4px}
.add-row input{width:90px; background:var(--bg-2); color:var(--ink); border:1px solid var(--border);
  border-radius:10px; padding:8px 10px; font-family:inherit; font-size:13px}
.add-row input:focus{outline:none;border-color:var(--accent)}
.pct{color:var(--muted)}

input[type=range]{-webkit-appearance:none; appearance:none; height:6px; border-radius:6px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2)); outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none; width:18px; height:18px; border-radius:50%;
  background:#fff; cursor:pointer; box-shadow:0 2px 8px rgba(0,0,0,.5); border:3px solid var(--accent)}

.btn-run{justify-content:center; width:100%; margin-top:4px}
.btn-run.loading{opacity:.8; pointer-events:none}
.spinner{width:16px;height:16px;border:2px solid rgba(10,12,22,.35);border-top-color:#0a0c16;border-radius:50%;
  animation:spin .7s linear infinite; display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.run-meta{font-size:12px; color:var(--muted); text-align:center; min-height:16px}

/* ── results ─────────────────────────────────────────────────── */
.placeholder{padding:60px 30px; text-align:center}
.ph-icon{font-size:46px; margin-bottom:10px}
.placeholder h3{margin:0 0 8px}

.summary{display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:14px; margin-bottom:22px}
.stat{padding:16px 18px}
.stat .k{font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:.05em}
.stat .v{font-size:26px; font-weight:700; font-family:"Space Grotesk"; margin-top:4px}
.stat .d{font-size:13px; margin-top:2px}
.up{color:var(--accent-3)} .down{color:var(--ok)}

.country-block{margin-bottom:22px; padding:18px; animation:rise .5s ease both}
@keyframes rise{from{opacity:0; transform:translateY(14px)}to{opacity:1; transform:none}}
.cb-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:6px}
.cb-head h3{margin:0; font-size:20px}
.toggle{display:flex; background:var(--bg-2); border:1px solid var(--border); border-radius:10px; padding:3px}
.toggle button{cursor:pointer; font-family:inherit; font-weight:600; font-size:13px; color:var(--muted);
  background:transparent; border:none; padding:6px 16px; border-radius:7px; transition:all .15s}
.toggle button.on{background:var(--grad); color:#0a0c16}
.chart{width:100%; height:360px}
.tableWrap{margin-top:8px}
details{border-top:1px solid var(--border); margin-top:8px; padding-top:8px}
summary{cursor:pointer; font-size:13px; color:var(--muted); font-weight:600}
table{width:100%; border-collapse:collapse; font-size:12.5px; margin-top:10px}
th,td{padding:6px 9px; text-align:right; border-bottom:1px solid var(--border)}
th:first-child,td:first-child{text-align:left; color:var(--muted)}

.banner{padding:11px 16px; border-radius:12px; background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.3); font-size:13.5px; margin-bottom:18px}

/* ── about ───────────────────────────────────────────────────── */
.about{max-width:1180px; margin:90px auto 0; padding:0 24px}
.about-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:16px}
.about-card{padding:20px}
.about-card h4{margin:0 0 8px; color:var(--accent-2)}
.about-card p{margin:0; color:#c2cce0; font-size:14px}
.model-cards{display:flex; flex-wrap:wrap; gap:14px; margin-top:18px}
.mcard{padding:14px 18px; border-radius:14px; background:var(--glass); border:1px solid var(--border); font-size:13px}
.mcard b{font-family:"Space Grotesk"}

.footer{max-width:1180px; margin:80px auto 40px; padding:24px; border-top:1px solid var(--border);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; font-size:13px; color:var(--muted)}

/* ── responsive ──────────────────────────────────────────────── */
@media(max-width:900px){
  .studio-grid{grid-template-columns:1fr}
  .controls{position:static}
  .cards{grid-template-columns:1fr}
}