*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#1e293b,#0f172a);min-height:100vh;color:#fff}.lobby{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:20px}.lobby h1{font-size:2.5rem;margin-bottom:.5rem}.subtitle{font-size:1.2rem;color:#94a3b8;margin-bottom:2rem}.lobby-form{background:#ffffff1a;padding:2rem;border-radius:16px;display:flex;flex-direction:column;gap:1rem;width:100%;max-width:320px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.lobby-form input{padding:12px 16px;border:none;border-radius:8px;font-size:1rem;background:#ffffffe6;color:#1e293b}.lobby-form input::placeholder{color:#64748b}.btn-primary{padding:12px 24px;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary:hover{background:#2563eb;transform:translateY(-2px)}.btn-secondary{padding:12px 24px;background:#ef4444;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-secondary:hover{background:#dc2626;transform:translateY(-2px)}.divider{text-align:center;color:#64748b;position:relative}.divider:before,.divider:after{content:"";position:absolute;top:50%;width:35%;height:1px;background:#475569}.divider:before{left:0}.divider:after{right:0}.divider-line{width:100%;height:1px;background:#475569;margin:8px 0}.game-container{display:flex;flex-direction:column;align-items:center;padding:20px;min-height:100vh}.game-header{text-align:center;margin-bottom:1rem}.game-header h1{font-size:2rem;margin-bottom:.5rem}.room-info{display:flex;align-items:center;gap:8px;justify-content:center;color:#94a3b8}.room-id{font-family:monospace;font-size:1.2rem;font-weight:700;color:#fbbf24;background:#fbbf241a;padding:4px 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0}.difficulty-select{display:flex;gap:8px;justify-content:center;margin:1rem 0}.btn-diff{padding:8px 16px;background:#ffffff1a;border:2px solid transparent;border-radius:8px;color:#fff;cursor:pointer;transition:all .2s}.btn-diff:hover{background:#fff3}.btn-diff.active{background:#3b82f6;border-color:#60a5fa}.btn-start{padding:12px 32px;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;margin-top:1rem;transition:all .2s}.btn-start:hover{transform:translateY(-2px);box-shadow:0 4px 12px #22c55e66}.waiting-text{color:#94a3b8;margin-top:1rem}.game-stats{display:flex;gap:2rem;margin-bottom:1rem;font-size:1.2rem;align-items:center}.wrong-flag-warning{color:#fbbf24;background:#fbbf2433;padding:4px 12px;border-radius:6px;animation:pulse-warning 1s ease-in-out infinite}@keyframes pulse-warning{0%,to{opacity:1}50%{opacity:.6}}.game-result{font-size:1.5rem;font-weight:700;padding:12px 24px;border-radius:8px;margin-bottom:1rem}.game-result.won{background:#22c55e33;color:#4ade80}.game-result.lost{background:#ef444433;color:#f87171}.board{display:grid;gap:1px;background:#4b5563}.cell{width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;cursor:pointer;-webkit-user-select:none;user-select:none;transition:all .1s}.cell-hidden{background:linear-gradient(135deg,#9ca3af,#6b7280)}.cell-hidden:hover{background:linear-gradient(135deg,#d1d5db,#9ca3af)}.cell-hidden:active{background:#4b5563}.cell-revealed{background:#e5e7eb}.cell-mine{background:#ef4444}.cell-1{color:#2563eb}.cell-2{color:#16a34a}.cell-3{color:#dc2626}.cell-4{color:#7c3aed}.cell-5{color:#b45309}.cell-6{color:#0891b2}.cell-7{color:#1f2937}.cell-8{color:#6b7280}.game-controls{display:flex;gap:12px;margin-top:1rem}.btn-reset{padding:10px 20px;background:#22c55e;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all 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0}.setting-label{display:block;color:#94a3b8;margin-bottom:.5rem;font-size:.9rem}.setting-row{display:flex;gap:1.5rem;justify-content:center;align-items:center;margin:1rem 0;flex-wrap:wrap}.setting-item{display:flex;align-items:center;gap:8px;color:#fff}.setting-select{padding:8px 12px;border-radius:8px;border:none;background:#ffffffe6;color:#1e293b;font-size:1rem;cursor:pointer}.btn-toggle{padding:8px 16px;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s}.btn-toggle.on{background:#22c55e;color:#fff}.btn-toggle.off{background:#64748b;color:#fff}.size-select{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.btn-size{padding:8px 12px;background:#ffffff1a;border:2px solid transparent;border-radius:8px;color:#fff;cursor:pointer;transition:all 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#06b6d466}@keyframes borderPulse{0%,to{border-color:#06b6d466;box-shadow:inset 0 0 30px #06b6d41a,0 0 15px #06b6d44d}50%{border-color:#06b6d4cc;box-shadow:inset 0 0 50px #06b6d433,0 0 30px #06b6d480}}.item-info{margin-top:1rem;padding:12px 16px;background:#06b6d41a;border:1px solid rgba(6,182,212,.3);border-radius:8px;max-width:400px}.item-info-title{font-weight:700;color:#22d3ee;margin-bottom:6px}.item-info-text{color:#94a3b8;font-size:.85rem;line-height:1.5}.confetti-container{position:fixed;inset:0;pointer-events:none;z-index:100;overflow:hidden}.confetti{position:absolute;top:-20px;border-radius:2px;animation:confettiFall linear forwards}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.triggered-by{font-size:.9rem;margin-top:4px;opacity:.8}.explosion{position:absolute;pointer-events:none;z-index:100}.particle{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--color);animation:explode .8s ease-out forwards;transform-origin:center}@keyframes explode{0%{transform:rotate(var(--angle)) translate(0) scale(1);opacity:1}to{transform:rotate(var(--angle)) translate(80px) scale(0);opacity:0}}.explosion-text{position:absolute;top:-30px;left:50%;transform:translate(-50%);font-size:1.5rem;font-weight:700;color:#ffe66d;text-shadow:2px 2px 4px rgba(0,0,0,.5);animation:popText .8s ease-out forwards;white-space:nowrap}@keyframes popText{0%{transform:translate(-50%) scale(.5);opacity:1}50%{transform:translate(-50%) scale(1.2)}to{transform:translate(-50%) scale(1) translateY(-30px);opacity:0}}.board-container{position:relative;background:#6b7280;padding:8px;border-radius:8px;box-shadow:0 8px 32px #0000004d;overflow:hidden;max-width:100%}