:root{color-scheme:light dark;font-family:Segoe UI,Noto Sans KR,sans-serif;background-color:#0f172a;color:#f8fafc}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top,#1e293b,#0f172a 55%)}#app{width:min(720px,92vw)}.main-card{background:#0f172ad9;border:1px solid rgba(148,163,184,.3);border-radius:18px;padding:36px 32px;box-shadow:0 18px 45px #0f172a73;backdrop-filter:blur(6px)}h1{margin:0 0 18px;font-size:1.8rem;letter-spacing:.04rem;text-align:center}p{margin:0 0 16px;color:#cbd5f5;text-align:center}label{display:block;margin-bottom:12px;font-weight:600}input[type=text]{width:100%;padding:14px 16px;border-radius:12px;border:1px solid rgba(148,163,184,.4);background:#0f172a99;color:inherit;font-size:1rem;transition:all .3s ease}input[type=text].error{border-color:#ef4444;background:#ef444426;animation:shake .3s ease}button{appearance:none;background:linear-gradient(135deg,#38bdf8,#2563eb);border:none;border-radius:12px;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:14px 20px;width:100%;transition:transform .2s .3s ease}button:hover{transform:translateY(-2px);box-shadow:0 12px 24px #2563eb59}button+button{margin-top:12px}button:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}@keyframes hitEffect{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(0);opacity:0}}@keyframes missEffect{0%{transform:translate(0)}25%{transform:translate(-10px)}50%{transform:translate(10px)}75%{transform:translate(-10px)}to{transform:translate(0);opacity:0}}.screen{display:flex;flex-direction:column;gap:20px}.countdown-number{font-size:clamp(3rem,10vw,6rem);text-align:center;font-weight:700;margin-top:24px}.game-header{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:center;align-items:center}.stat-block{background:#0f172a99;padding:12px 16px;border-radius:12px;border:1px solid rgba(148,163,184,.25)}.stat-block .stat-label{display:block;font-size:.85rem;color:#94a3b8}.stat-block .stat-value{font-size:1.3rem;font-weight:700;margin-top:6px}.game-area{position:relative;height:320px;border-radius:14px;border:1px solid rgba(148,163,184,.25);background:linear-gradient(160deg,#1e293be6,#0f172ad9);overflow:hidden}.word{position:absolute;left:0;top:0;padding:6px 12px;border-radius:10px;background:#38bdf81a;border:1px solid rgba(56,189,248,.4);color:#e0f2fe;font-weight:600;transition:transform .12s linear}.word.hit{background:#22c55e2e;border-color:#22c55e99;color:#bbf7d0;animation:hitEffect .18s ease-out forwards}.word.miss{background:#f8717133;border-color:#f87171b3;color:#fecaca;animation:missEffect .24s ease-out forwards}.game-input{display:flex;gap:12px;margin-top:18px;align-items:center}.game-input input{flex:1;min-width:0;padding:14px 16px;border-radius:12px;border:1px solid rgba(148,163,184,.4);background:#0f172aa6;color:inherit;font-size:1.05rem}.game-input button{flex:0 0 auto;width:auto;min-width:108px;padding:12px 18px}.game-input button:disabled{opacity:.5;cursor:not-allowed;background:#94a3b833}.badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 12px;border-radius:999px;background:#38bdf826;color:#e0f2fe;font-weight:600;letter-spacing:.02em}.result-score{font-size:clamp(2rem,6vw,3rem);font-weight:700;text-align:center}.result-details{display:grid;gap:12px;margin:24px 0 12px}.result-row{display:flex;justify-content:space-between;padding:12px 14px;border-radius:10px;background:#0f172a99;border:1px solid rgba(148,163,184,.25)}#name-form button{margin-top:20px}.difficulty-section{margin:20px 0}.difficulty-section label{display:block;margin-bottom:12px;font-weight:500}.button-group{display:flex;gap:12px;justify-content:center}.difficulty-btn{flex:1;padding:12px;border:2px solid;border-radius:8px;cursor:pointer;transition:all .3s ease;font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;background:none!important;width:auto}.difficulty-btn[data-difficulty=easy]{border-color:#10b981!important;background-color:#10b9811a!important;color:#10b981!important}.difficulty-btn[data-difficulty=easy]:hover{background-color:#10b98133!important;transform:translateY(-2px);box-shadow:0 4px 12px #10b9814d}.difficulty-btn[data-difficulty=easy].active{background-color:#10b981!important;color:#fff!important;box-shadow:0 6px 16px #10b98166}.difficulty-btn[data-difficulty=normal]{border-color:#f59e0b!important;background-color:#f59e0b1a!important;color:#f59e0b!important}.difficulty-btn[data-difficulty=normal]:hover{background-color:#f59e0b33!important;transform:translateY(-2px);box-shadow:0 4px 12px #f59e0b4d}.difficulty-btn[data-difficulty=normal].active{background-color:#f59e0b!important;color:#fff!important;box-shadow:0 6px 16px #f59e0b66}.difficulty-btn[data-difficulty=hard]{border-color:#ef4444!important;background-color:#ef44441a!important;color:#ef4444!important}.difficulty-btn[data-difficulty=hard]:hover{background-color:#ef444433!important;transform:translateY(-2px);box-shadow:0 4px 12px #ef44444d}.difficulty-btn[data-difficulty=hard].active{background-color:#ef4444!important;color:#fff!important;box-shadow:0 6px 16px #ef444466}.ranking-card{margin-top:24px}.ranking-card h2{margin:0 0 20px;font-size:1.5rem;text-align:center;color:#fbbf24}.ranking-list{display:flex;flex-direction:column;gap:12px}.ranking-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#1e293b80;border:1px solid rgba(148,163,184,.25);border-radius:10px;transition:all .2s ease}.ranking-item:hover{background:#1e293bb3;border-color:#94a3b866}.ranking-item.current{background:#3b82f626;border-color:#3b82f6;box-shadow:0 0 12px #3b82f64d}.ranking-item .rank{min-width:40px;font-weight:700;font-size:1.1rem;color:#fbbf24}.ranking-item .player-name{flex:1;font-weight:600;color:#f8fafc}.ranking-item .score{font-weight:700;font-size:1.1rem;color:#38bdf8}.difficulty-badge{padding:4px 10px;border-radius:12px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.difficulty-badge.easy{background:#10b981;color:#fff}.difficulty-badge.normal{background:#f59e0b;color:#fff}.difficulty-badge.hard{background:#ef4444;color:#fff}@media (max-width: 768px){body{align-items:flex-start;padding:20px 0}#app{width:95vw}.main-card{padding:24px 20px;border-radius:14px}h1{font-size:1.5rem;margin-bottom:14px}.game-header{flex-wrap:wrap;gap:12px}.stat-block{min-width:calc(50% - 5px)}.game-area{height:350px}.word{font-size:1rem;padding:8px 14px}.ranking-item{padding:12px;gap:8px}.ranking-item .rank{min-width:35px;font-size:1rem}.ranking-item .score{font-size:1rem}.difficulty-badge{padding:3px 8px;font-size:.7rem}}@media (max-width: 480px){body{padding:12px 0;min-height:100svh}#app{width:100vw}.main-card{padding:20px 16px;border-radius:12px;margin:0}h1{font-size:1.3rem;margin-bottom:12px}p{font-size:.9rem;margin-bottom:12px}button{padding:12px 16px;font-size:.95rem}input[type=text]{padding:12px 14px;font-size:.95rem}.game-header{gap:8px}.stat-block{min-width:100%;padding:12px 14px}.stat-block .stat-label{font-size:.8rem}.stat-block .stat-value{font-size:1.1rem}.game-area{height:300px;margin:12px 0}.word{font-size:.9rem;padding:6px 12px}.game-input{gap:8px}.game-input #skip-button{padding:12px 14px;font-size:.85rem;min-width:70px}.result-score{font-size:2.5rem}.result-details{gap:8px}.result-row{padding:12px 14px;font-size:.9rem}.ranking-card{margin-top:16px}.ranking-card h2{font-size:1.3rem;margin-bottom:16px}.ranking-item{flex-wrap:nowrap;padding:8px 12px;gap:6px}.ranking-item .rank{min-width:30px;font-size:.9rem}.ranking-item .player-name{font-size:.9rem;max-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ranking-item .score{font-size:.95rem}.difficulty-badge{padding:2px 6px;font-size:.65rem}.countdown-number{font-size:clamp(2.5rem,15vw,5rem)}.difficulty-container{gap:8px}.difficulty-btn{padding:12px 14px;font-size:.85rem}}@media (max-width: 360px){.main-card{padding:16px 12px}h1{font-size:1.2rem}.game-area{height:250px}.word{font-size:.85rem;padding:5px 12px}.ranking-item .player-name{max-width:60px}.result-score{font-size:2rem}}@media (max-height: 600px) and (orientation: landscape){body{align-items:flex-start;padding:12px 0}.main-card{padding:16px 20px}.game-area{height:200px}h1{font-size:1.2rem;margin-bottom:8px}.stat-block{padding:8px 12px}.countdown-number{font-size:clamp(2rem,8vh,4rem)}}@media (max-width: 520px){.game-header{grid-template-columns:1fr}}