:root{color-scheme:dark;--bg:#070b14;--panel:#111827;--line:#334155;--accent:#8b5cf6;--text:#f8fafc;--muted:#94a3b8}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#241447,var(--bg) 55%);color:var(--text);font-family:Inter,"Noto Sans KR",sans-serif}
.page-shell,.room-shell{width:min(1050px,92vw);margin:0 auto;padding:28px 0 60px}
.tool-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:32px}
.tool-tabs a,.back{color:var(--muted);text-decoration:none}
.tool-tabs a{padding:11px 17px;border:1px solid var(--line);border-radius:999px;background:#0f172a}
.tool-tabs a.active{color:#fff;border-color:var(--accent);background:#6d28d9}
.hero{text-align:center;margin:28px 0}.hero-icon{font-size:4rem}.hero p{color:#c4b5fd;font-weight:800}.hero h1{font-size:clamp(2.5rem,7vw,4.5rem);margin:8px}.hero span{color:#cbd5e1}
.join-card,.info,.modal-card,.room-head,.bulk,.add-timer,.participants{border:1px solid var(--line);border-radius:20px;background:#0f172ae8}
.join-card{max-width:570px;margin:32px auto;padding:28px;display:grid;gap:18px}
.join-card label,.add-timer label{display:grid;gap:8px;color:#cbd5e1;font-weight:700}
input,select,button{font:inherit}input,select{width:100%;border:1px solid #475569;border-radius:11px;background:#070d19;color:#fff;padding:12px}
.room-access-code{-webkit-text-security:disc;letter-spacing:.25em}
button,.button-link{border:1px solid #475569;border-radius:11px;background:#1e293b;color:#fff;padding:11px 15px;cursor:pointer;font-weight:800}
.button-link{display:inline-flex;align-items:center;text-decoration:none}
button:hover,.button-link:hover{border-color:#8b5cf6}button:disabled{opacity:.4;cursor:not-allowed}.primary{background:#6d28d9;border-color:#8b5cf6}
.join-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.error{min-height:1.2em;color:#fca5a5}
.info{max-width:700px;margin:20px auto;padding:24px;color:#cbd5e1}.info li{margin:10px 0}
.lifecycle-note{margin:20px 0 0;padding:14px 16px;border-radius:13px;background:#172033;color:#cbd5e1;font-size:.9rem;line-height:1.65}
.room-lifecycle{margin:14px 0 0;padding:11px 15px;display:flex;align-items:center;gap:9px;border:1px solid #334155;border-radius:14px;background:#0f172ad9;color:#cbd5e1;font-size:.88rem}
.gift-credit{margin:32px auto 0;display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:14px}.gift-credit a{display:inline-flex;align-items:center;gap:11px;padding:10px 15px;border:1px solid #334155;border-radius:16px;background:#0f172a99;color:#e2e8f0;text-decoration:none;transition:border-color .2s,transform .2s}.gift-credit a:hover{border-color:#38bdf8;transform:translateY(-1px)}.gift-credit img{width:42px;height:42px;object-fit:contain}.gift-credit span{display:grid;gap:2px}.gift-credit small{color:#64748b;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase}.gift-credit strong{font-size:.86rem}.gift-credit .guild-inquiry-button{border-color:#8b5cf6;background:#5b21b6;color:#fff;box-shadow:0 8px 24px #5b21b633}
.modal{position:fixed;inset:0;z-index:10;display:grid;place-items:center;background:#020617dd}.modal[hidden]{display:none}.modal-card{width:min(420px,90vw);padding:28px;display:grid;gap:15px}
.room-head{margin-top:20px;padding:23px;display:flex;justify-content:space-between;gap:18px;align-items:center}.room-head h1{margin:8px 0}.room-head p{color:var(--muted);margin:0}
.head-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.head-actions label{display:flex;align-items:center;gap:8px;color:#cbd5e1}
.bulk{margin-top:16px;padding:15px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.bulk span{margin-left:auto;color:var(--muted);font-size:.86rem}
.add-timer{margin-top:16px;padding:18px;display:grid;grid-template-columns:2fr 90px 90px auto auto;align-items:end;gap:10px}
.repeat{display:flex!important;align-items:center;grid-template-columns:auto 1fr!important}.repeat input{width:auto}
.timer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:15px;margin-top:18px}
.timer-card{border:1px solid var(--line);border-radius:20px;background:#111827;padding:20px}.timer-card.running{border-color:#8b5cf6;box-shadow:0 0 25px #7c3aed22}.timer-card.done{border-color:#ef4444}.timer-card h2{margin:0;color:#e2e8f0}
.timer-display{font:800 3rem/1 ui-monospace,monospace;margin:22px 0;color:#c4b5fd}.timer-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:.82rem}
.timer-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:15px}.timer-actions .delete{color:#fca5a5}
.empty{grid-column:1/-1;padding:45px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:20px}
.participants{padding:18px;margin-top:18px}.participants>small{display:block;margin-top:5px;color:var(--muted)}.participants>div{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.participant{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border-radius:999px;background:#1e293b;color:#cbd5e1}.participant.leader{border:1px solid #8b5cf6}.participant button{padding:3px 7px;border-radius:999px;color:#fecaca;font-size:.72rem}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#111827;border:1px solid #8b5cf6;border-radius:12px;padding:12px 18px}.toast[hidden]{display:none}
@media(max-width:720px){.room-head{align-items:flex-start;flex-direction:column}.add-timer{grid-template-columns:1fr 1fr}.add-timer>input:first-child{grid-column:1/-1}.add-timer button{grid-column:1/-1}.bulk span{width:100%;margin:0}.timer-display{font-size:2.5rem}}