*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#f5f5f5;--text:#222;--header-bg:#fff;--header-border:#ddd;--cell-bg:#fff;--cell-border:#888;--cell-selected:#a8d8ea;--cell-word:#d4eaf7;--cell-black:#222;--correct:#6aaa64;--wrong:#e63946;--accent:#4a90d9;--modal-bg:#fff;--modal-text:#222;--overlay-bg:rgba(0,0,0,0.4);--clue-bg:#fff;--clue-highlight:#e8f4fd}
[data-theme="dark"]{--bg:#1a1a2e;--text:#e0e0e0;--header-bg:#16213e;--header-border:#0f3460;--cell-bg:#2a2a4a;--cell-border:#555;--cell-selected:#1a5276;--cell-word:#1a3a5a;--cell-black:#111;--modal-bg:#16213e;--modal-text:#e0e0e0;--overlay-bg:rgba(0,0,0,0.6);--clue-bg:#1e293b;--clue-highlight:#1a3a5a}
html,body{height:100%;font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);-webkit-user-select:none;user-select:none}
body{display:flex;justify-content:center}
.app{width:100%;max-width:500px;display:flex;flex-direction:column;align-items:center}
.app-header{width:100%;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--header-bg);border-bottom:1px solid var(--header-border)}
.app-title{font-size:1.25rem;font-weight:700}
.icon-btn{background:none;border:none;cursor:pointer;color:var(--text);padding:6px;border-radius:8px;display:flex;align-items:center;justify-content:center;width:36px;height:36px}
.icon-btn:hover{background:rgba(128,128,128,0.15)}
.icon-btn svg{width:20px;height:20px}
[data-theme="light"] .icon-moon{display:none}[data-theme="dark"] .icon-sun{display:none}[data-theme="dark"] .icon-moon{display:block}
.game-container{padding:12px;display:flex;flex-direction:column;align-items:center;gap:10px;width:100%}
.timer{font-size:.85rem;font-weight:600;opacity:.6}
.grid{display:grid;grid-template:repeat(5,1fr)/repeat(5,1fr);gap:2px;width:min(300px,calc(100vw - 40px));aspect-ratio:1}
.cell{position:relative;display:flex;align-items:center;justify-content:center;background:var(--cell-bg);border:1.5px solid var(--cell-border);font-size:1.4rem;font-weight:600;text-transform:uppercase;cursor:pointer}
.cell.black{background:var(--cell-black);border-color:var(--cell-black);cursor:default}
.cell.word-highlight{background:var(--cell-word)}
.cell.selected{background:var(--cell-selected)}
.cell .num{position:absolute;top:1px;left:3px;font-size:.5rem;font-weight:700;opacity:.7}
.cell.wrong{color:var(--wrong)}
.cell.correct-check{color:var(--correct)}
.clues-panel{display:flex;gap:16px;width:100%;font-size:.8rem}
.clue-section{flex:1;background:var(--clue-bg);border-radius:8px;padding:10px}
.clue-section h3{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;opacity:.6;margin-bottom:6px}
.clue{padding:4px 6px;border-radius:4px;margin-bottom:2px;cursor:pointer;line-height:1.3}
.clue:hover,.clue.active{background:var(--clue-highlight)}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.action-btn{padding:8px 18px;font-family:inherit;font-size:.8rem;font-weight:600;border:1px solid var(--header-border);border-radius:8px;background:var(--cell-bg);color:var(--text);cursor:pointer}
.action-btn:hover{opacity:.8}
.action-btn.accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.modal-overlay{position:fixed;inset:0;background:var(--overlay-bg);display:none;align-items:center;justify-content:center;z-index:100}
.modal-overlay.active{display:flex}
.modal{background:var(--modal-bg);color:var(--modal-text);border-radius:16px;padding:28px;text-align:center;max-width:300px;width:90%;box-shadow:0 12px 40px rgba(0,0,0,0.2)}
.win-icon{font-size:48px;margin-bottom:6px}
.modal-title{font-size:1.2rem;font-weight:700;margin-bottom:4px}
.modal-sub{font-size:.85rem;opacity:.7;margin-bottom:14px}
.play-again-btn{width:100%;padding:12px;font-family:inherit;font-size:1rem;font-weight:600;border:none;border-radius:10px;background:var(--accent);color:#fff;cursor:pointer}