:root{
  --bg:#0f1226; --card:#151936; --muted:#8e95b3; --text:#e9ecff;
  --accent:#7c5cff; --accent2:#4ad1ff; --good:#37d67a;
  --ring:0 0 0 2px rgba(124,92,255,.35), 0 10px 30px rgba(124,92,255,.25);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color:var(--text); background:radial-gradient(1200px 800px at 10% -10%, #2a2f64 0%, transparent 60%),
                     radial-gradient(900px 700px at 120% 10%, #1b4c74 0%, transparent 60%),
                     radial-gradient(800px 700px at 50% 120%, #2a175a 0%, transparent 60%), var(--bg);
}

/* Header */
.site-header{position:sticky;top:0;z-index:20;padding:14px 16px;border-bottom:1px solid #ffffff12;
  background:linear-gradient(180deg,#0f1226cc,#0f1226a0 60%,transparent);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:34px;height:34px;border-radius:12px;background:radial-gradient(circle at 30% 30%,var(--accent),#4ad1ff);box-shadow:0 10px 30px #7c5cff55 inset,0 0 0 1px #ffffff11}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text strong{font-size:18px}
.brand-text span{font-size:12px;color:var(--muted)}
.nav{margin-left:auto;display:flex;gap:10px}
.nav a{color:#cfd6ff;text-decoration:none;padding:8px 10px;border-radius:10px;border:1px solid #ffffff14}
.nav a:hover{background:#11143a}
.nav a.active{background:#11143a;border-color:#ffffff2a}

/* Layout */
.container{max-width:1200px;margin:20px auto;padding:0 16px}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2n1{grid-template-columns:1.2fr .8fr}
@media (max-width:980px){.grid-2,.grid-3,.grid-2n1{grid-template-columns:1fr}}

.card{background:linear-gradient(180deg,#1a1f45,#14183a);border:1px solid #ffffff12;border-radius:var(--radius);
  box-shadow:0 10px 30px #0007,0 0 40px #6b63ff14 inset;padding:18px;position:relative;overflow:hidden;
  transform:translateY(0);transition:.25s}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 50px #000a,0 0 60px #6b63ff22 inset;border-color:#ffffff1f}
.card--full{grid-column:1 / -1}
h1,h2,h3{margin:.2rem 0 10px}
.muted{color:var(--muted)} .tiny{font-size:12px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.field{display:flex;flex-direction:column;gap:6px}
.field input, .field select, .share-row input{
  background:#0e1130;border:1px solid #ffffff13;color:var(--text);border-radius:12px;padding:11px 12px;font-size:14px;outline:none;
  transition:border-color .2s, box-shadow .2s
}
.field input:focus, .share-row input:focus{border-color:#7c5cff88;box-shadow:var(--ring)}
.hint{color:#a6add0;font-size:11px}

/* Sliders */
.slider{margin:8px 0}
.slider input[type=range]{width:100%}
.chip{color:#cfead9;background:#0e1130;border:1px solid #ffffff1a;padding:2px 8px;border-radius:999px;font-size:12px}

/* Buttons */
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.btn{border:0;border-radius:12px;padding:11px 14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:linear-gradient(180deg,var(--accent),#5f46ff);color:#fff;box-shadow:0 10px 30px rgba(124,92,255,.35)}
.btn-alt{background:linear-gradient(180deg,var(--accent2),#1aa9de);color:#00111e;box-shadow:0 10px 30px rgba(74,209,255,.35)}
.btn-ghost{background:#0e1130;color:#e9ecff;border:1px solid #ffffff18}
.btn-link{color:#cfe1ff;border:1px dashed #ffffff22;background:#0e113000}
.file-label{position:relative;overflow:hidden}
.file-label input{position:absolute;inset:0;opacity:0;cursor:pointer}

/* Metrics */
.metric-group{margin-top:12px;display:flex;flex-direction:column;gap:12px}
.metric{background:#0e1130;border:1px solid #ffffff12;border-radius:12px;padding:12px}
.bar{height:10px;background:#1a214e;border-radius:999px;overflow:hidden;margin:6px 0}
.bar>span{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .9s cubic-bezier(.22,1,.36,1)}
.labels{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}

.winner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;border:1px solid #ffffff2a;background:linear-gradient(180deg,rgba(55,214,122,.1),rgba(55,214,122,0));box-shadow:0 8px 26px rgba(55,214,122,.15)}
.winner-title{margin:.4rem 0}
.winner-reason{color:#cfead9;margin:.2rem 0}
.badge{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;border:1px solid #ffffff1a;background:#0e1130}
.scorechip{padding:6px 10px;border-radius:999px;background:#0e1130;border:1px solid #37d67a66;color:#8ff0b7;font-weight:800}

.radar{width:100%;height:360px;background:#0e1130;border:1px solid #ffffff12;border-radius:12px}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:50}

/* Hero */
.hero{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:20px}
.hero-inner{text-align:center;max-width:800px;animation:fadeUp .5s ease both}
.title{font-size:clamp(28px,5vw,44px);margin-bottom:10px}
.subtitle{color:#cbd2ff;margin:0 auto 18px;max-width:640px}
.bg-shine{position:absolute;inset:0;pointer-events:none;mix-blend-mode:screen;opacity:.35;background:conic-gradient(from 0deg,#7c5cff22,#4ad1ff22,#7c5cff22);animation:spin 18s linear infinite;mask:radial-gradient(700px 700px at 50% 20%,#000 0 60%,transparent 70%)}
@keyframes spin{to{transform:rotate(1turn)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)}}

/* Toast */
.toast{position:fixed;bottom:16px;right:16px;background:#0e1130;border:1px solid #ffffff1a;padding:12px 14px;border-radius:12px;opacity:0;transform:translateY(8px);transition:.25s;z-index:60}
.toast.show{opacity:1;transform:translateY(0)}

/* Share */
.sharebox{margin-top:16px}
.share-row{display:grid;grid-template-columns:1fr auto;gap:8px}