:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:#070812;color:#edf7ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 0%,#1e1b4b 0,#070812 34%),radial-gradient(circle at 80% 10%,#164e63 0,#070812 30%)}.app-shell{max-width:1180px;margin:0 auto;padding:24px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:48px}.brand{font-size:1.5rem;font-weight:800;letter-spacing:.08em;color:#9cf6ff;text-decoration:none}nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}a,button{color:#edf7ff}nav a,nav button{border:1px solid #ffffff20;background:#ffffff0a;border-radius:999px;padding:9px 13px;text-decoration:none}button{cursor:pointer;font:inherit}.hero{text-align:center;max-width:900px;margin:0 auto}.hero h1{font-size:clamp(2.3rem,7vw,5.5rem);line-height:.95;margin:20px 0}.hero p,.muted{color:#a9bdd0}.badge,.notice{display:inline-block;border:1px solid #9cf6ff55;background:#9cf6ff12;color:#bffbff;border-radius:999px;padding:8px 12px}.notice{border-radius:16px}.actions{display:flex;gap:14px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:24px}.primary,.actions a,form button.primary{border:0;border-radius:999px;padding:12px 18px;background:linear-gradient(135deg,#9cf6ff,#c084fc);color:#071018;font-weight:800;text-decoration:none}.panel{background:linear-gradient(180deg,#ffffff12,#ffffff08);border:1px solid #ffffff20;border-radius:26px;padding:26px;box-shadow:0 20px 80px #0008}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}.stack{display:grid;gap:24px}.form{display:grid;gap:16px;max-width:620px}.form label{display:grid;gap:7px;color:#cfe2f3}.form input,.form select{width:100%;border:1px solid #ffffff26;background:#050712;color:#fff;border-radius:14px;padding:12px}.choice-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.choice{border:1px solid #ffffff26;background:#ffffff08;border-radius:18px;padding:22px}.choice.active{border-color:#9cf6ff;background:#9cf6ff1e;box-shadow:0 0 28px #9cf6ff25}.meter-wrap{margin:28px 0}.meter-labels{display:flex;justify-content:space-between;color:#a9bdd0;font-size:.9rem}.meter{position:relative;height:82px;margin-top:10px;border-radius:999px;background:linear-gradient(90deg,#7dd3fc22,#ffffff10,#c084fc22);border:1px solid #ffffff24;overflow:hidden}.center-line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:#fff9}.signal{position:absolute;top:50%;transform:translate(-50%,-50%);width:34px;height:34px;border-radius:50%;background:#fff;box-shadow:0 0 30px #9cf6ff,0 0 80px #c084fc;transition:left .4s ease}.blind-mask{position:absolute;inset:0;display:grid;place-items:center;background:#050712cc;color:#cbd5e1}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}.stat-card{border:1px solid #ffffff1f;background:#05071299;border-radius:20px;padding:18px;display:grid;gap:8px}.stat-card span,.stat-card small{color:#99aabd}.stat-card strong{font-size:1.55rem}.chart{min-height:330px}.readable{max-width:850px;margin:0 auto;line-height:1.7}.error{color:#fca5a5;white-space:pre-wrap}@media(max-width:800px){.grid.two{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.choice-row{grid-template-columns:1fr}}.language-switcher{display:flex;align-items:center;gap:6px;border:1px solid #ffffff20;background:#ffffff0a;border-radius:999px;padding:7px 10px;color:#edf7ff;font-size:.9rem}.language-switcher select{border:0;background:transparent;color:#edf7ff;font:inherit;outline:none}.language-switcher option{background:#071018;color:#edf7ff}