:root{color-scheme:dark;--bg: #000;--text: rgba(255, 255, 255, .92);--muted: rgba(255, 255, 255, .78);--faint: rgba(255, 255, 255, .56);--card: rgba(255, 255, 255, .035);--border: rgba(255, 255, 255, .22);--border2: rgba(255, 255, 255, .3);--green: #1ea43a;--red: #ff3b30;--blue: #3b82f6;--focus: rgba(59, 130, 246, .45);--accent: rgba(59, 130, 246, 1);--accent-soft: rgba(59, 130, 246, .15)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:radial-gradient(1200px 600px at 35% 0%,rgba(255,255,255,.06),transparent 55%),var(--bg);color:var(--text)}.page{max-width:820px;margin:0 auto;padding:28px 18px 40px}.hero{text-align:center;margin:8px auto 40px;max-width:640px}.title{margin:0 0 6px;font-weight:500;letter-spacing:.2px;font-size:34px}.subtitle{margin:0 0 12px;color:var(--muted);font-size:14px}.card{border:1px solid 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var(--accent)}.selection-label{font-size:10px;text-transform:uppercase;letter-spacing:.5px;opacity:.8}.selection-value{font-size:15px;font-weight:600;letter-spacing:-.2px}.custom-input-reveal{margin-top:12px;animation:slideDown .2s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.actions{display:flex;gap:12px;align-items:center;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}.actions .cta{flex:1}.cta{background:var(--green);border:0;color:#fff;font-weight:600;padding:14px 20px;font-size:14px;letter-spacing:.3px;cursor:pointer;border-radius:12px;transition:all .2s}.cta:hover{filter:brightness(1.1);transform:translateY(-1px)}.cta:active{transform:translateY(0)}.cta:disabled{background:#ffffff1f;color:#ffffff4d;cursor:not-allowed;transform:none;filter:none}.secondary{background:transparent;border:1px solid rgba(255,255,255,.18);color:#ffffffe6;border-radius:12px;padding:14px 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