:root{--neu-bg-primary:#e6e9ef;--neu-bg-secondary:#d1d5db;--neu-shadow-dark:#b8bcc2;--neu-shadow-light:#fff;--neu-text:#1f2937;--neu-text-soft:#4b5563;--neu-primary:#7c3aed}.dark{--neu-bg-primary:#374151;--neu-bg-secondary:#1f2937;--neu-shadow-dark:#111827;--neu-shadow-light:#4b5563;--neu-text:#f3f4f6;--neu-text-soft:#d1d5db}*{box-sizing:border-box}body{color:var(--neu-text);background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));min-height:100vh;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.container{max-width:1100px;margin:0 auto;padding:24px}.neu-raised{background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));box-shadow:8px 8px 16px var(--neu-shadow-dark), -8px -8px 16px var(--neu-shadow-light)}.neu-raised-sm{background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));box-shadow:4px 4px 8px var(--neu-shadow-dark), -4px -4px 8px var(--neu-shadow-light)}.neu-inset{background:linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg-primary));box-shadow:inset 4px 4px 8px var(--neu-shadow-dark), inset -4px -4px 8px var(--neu-shadow-light)}.grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.card{background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));box-shadow:8px 8px 16px var(--neu-shadow-dark), -8px -8px 16px var(--neu-shadow-light);border-radius:12px;margin-bottom:16px;padding:16px}.form{gap:10px;display:grid}label{color:var(--neu-text-soft);gap:6px;font-size:14px;display:grid}input,textarea,button{font:inherit;color:var(--neu-text);padding:10px}textarea{min-height:72px}input,textarea{background:linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg-primary));box-shadow:inset 4px 4px 8px var(--neu-shadow-dark), inset -4px -4px 8px var(--neu-shadow-light);border:none;border-radius:10px}button{background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));box-shadow:4px 4px 8px var(--neu-shadow-dark), -4px -4px 8px var(--neu-shadow-light);color:#fff;cursor:pointer;border:none;border-radius:8px}.neu-btn{transition:transform .15s,box-shadow .15s}.neu-btn:hover:not(:disabled){transform:translateY(-1px)}.neu-btn:active:not(:disabled){box-shadow:inset 2px 2px 4px var(--neu-shadow-dark), inset -2px -2px 4px var(--neu-shadow-light);transform:translateY(1px)}.neu-btn:disabled{opacity:.65;cursor:not-allowed}.theme-toggle{width:52px;height:52px;color:var(--neu-text);z-index:40;border-radius:14px;font-size:20px;position:fixed;top:16px;right:16px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #e5e7eb;padding:8px}.qr{object-fit:contain;width:220px;height:220px}.hint{color:var(--neu-text-soft);font-size:13px}.ok{color:#166534}.error{color:#b91c1c;white-space:pre-wrap}.actions{flex-wrap:wrap;gap:8px;display:flex}.action-btn{align-items:center;gap:6px;display:inline-flex}.btn-icon{justify-content:center;width:16px;display:inline-flex}.join{max-width:520px}.landing{text-align:center;max-width:640px;padding-top:80px}.landing-qr{background:linear-gradient(145deg, var(--neu-bg-primary), var(--neu-bg-secondary));width:320px;height:320px;box-shadow:8px 8px 16px var(--neu-shadow-dark), -8px -8px 16px var(--neu-shadow-light);border-radius:22px;margin:8px auto 16px;padding:12px}.landing-card{border-radius:28px;padding:28px}.landing-pill{color:var(--neu-text-soft);letter-spacing:.04em;text-transform:uppercase;box-shadow:4px 4px 8px var(--neu-shadow-dark), -4px -4px 8px var(--neu-shadow-light);border-radius:999px;margin:0 0 10px;padding:6px 12px;font-size:12px;display:inline-block}.landing-title{letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.8rem,4vw,2.8rem)}.landing-subtitle{color:var(--neu-text-soft);margin:0 0 18px}.landing-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:14px;display:flex}.landing-primary,.landing-secondary{border-radius:12px;padding:11px 16px;text-decoration:none}.landing-primary{color:#fff;background:linear-gradient(145deg,#7c3aed,#6d28d9);box-shadow:4px 4px 8px #4c1d9566,-4px -4px 8px #ffffff14}.landing-secondary{color:var(--neu-text);justify-content:center;align-items:center;transition:transform .15s,box-shadow .15s;display:inline-flex}.landing-secondary:hover{transform:translateY(-1px)}.landing-secondary:active{box-shadow:inset 2px 2px 4px var(--neu-shadow-dark), inset -2px -2px 4px var(--neu-shadow-light);transform:translateY(1px)}@media (width<=860px){.grid{grid-template-columns:1fr}.landing-qr{width:260px;height:260px}}