:root{color-scheme:dark;font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#000a14;color:#e0f0ff}.game-screen{position:relative;width:100vw;height:100vh;overflow:hidden}.game-canvas{display:block;width:100%;height:100%}.hud{position:absolute;top:0;left:0;right:0;pointer-events:none;padding:16px 24px}.hud-top{display:flex;align-items:center;gap:20px}.hud-health{flex:1;max-width:250px}.shark-label{font-size:11px;color:#4ecdc4cc;letter-spacing:.05em;display:block;margin-bottom:2px}.health-bar-bg{width:100%;height:16px;background:#00000080;border-radius:8px;overflow:hidden;border:1px solid rgba(255,255,255,.15)}.health-bar-fill{height:100%;border-radius:8px;transition:width .2s,background .3s;box-shadow:0 0 10px 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rotate(5deg)}}.title{font-size:52px;font-weight:900;letter-spacing:.08em;line-height:1.1;background:linear-gradient(135deg,#4ecdc4,#8cf,#4ecdc4);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:titleShimmer 4s ease-in-out infinite;text-shadow:none}@keyframes titleShimmer{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.subtitle{font-size:18px;color:#8cf9;margin-top:8px;letter-spacing:.3em;text-transform:uppercase}.menu-stats{display:flex;justify-content:center;gap:24px;margin-bottom:30px;font-size:14px;color:#ffffff80}.menu-buttons{display:flex;flex-direction:column;align-items:center;gap:12px}.panel{position:relative;z-index:1;background:linear-gradient(135deg,#002846d9,#001428e6);border:1px solid rgba(78,205,196,.2);border-radius:20px;padding:32px;max-width:680px;width:90vw;max-height:90vh;overflow-y:auto}.panel h2{font-size:28px;color:#4ecdc4;margin-bottom:8px;text-align:center}.shop-coins{text-align:center;font-size:20px;font-weight:700;color:gold;margin-bottom:20px}.upgrade-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px}.upgrade-card{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:16px;text-align:center;transition:border-color .2s}.upgrade-card:hover{border-color:#4ecdc44d}.upgrade-card.maxed{border-color:#ffd7004d}.upgrade-icon{font-size:28px;margin-bottom:6px}.upgrade-name{font-weight:600;font-size:14px;margin-bottom:4px}.upgrade-desc{font-size:11px;color:#ffffff80;margin-bottom:8px}.upgrade-level{display:flex;justify-content:center;gap:4px;margin-bottom:10px}.level-pip{width:12px;height:12px;border-radius:50%;background:#ffffff1a;border:1px solid rgba(255,255,255,.2)}.level-pip.filled{background:#4ecdc4;border-color:#4ecdc4;box-shadow:0 0 6px #4ecdc466}.upgrade-maxed{font-size:12px;color:gold;font-weight:700;letter-spacing:.1em}.shark-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:16px}.shark-card{background:#ffffff0a;border:2px solid rgba(255,255,255,.08);border-radius:14px;padding:18px;text-align:center;cursor:pointer;transition:all .2s;position:relative}.shark-card:hover{border-color:#4ecdc44d}.shark-card.selected{border-color:#4ecdc4;background:#4ecdc414}.shark-card.locked{opacity:.7;cursor:default}.shark-emoji{font-size:40px;margin-bottom:8px}.shark-name{font-size:16px;font-weight:700;margin-bottom:4px}.shark-desc{font-size:11px;color:#ffffff80;margin-bottom:12px}.shark-stats{margin-bottom:12px}.stat{display:flex;align-items:center;gap:8px;margin-bottom:6px}.stat-label{font-size:11px;color:#ffffff80;width:50px;text-align:right}.stat-bar{flex:1;height:6px;background:#ffffff14;border-radius:3px;overflow:hidden}.stat-fill{height:100%;border-radius:3px;transition:width .3s}.selected-badge{position:absolute;top:8px;right:8px;background:#4ecdc4;color:#001a2e;font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;letter-spacing:.05em}.mission-subtitle{text-align:center;font-size:13px;color:#ffffff80;margin-bottom:20px}.mission-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.mission-card{display:flex;justify-content:space-between;align-items:center;background:#ffffff0a;border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:12px 16px}.mission-card.completed{opacity:.5;border-color:#4ecdc433}.mission-info{display:flex;flex-direction:column}.mission-name{font-weight:600;font-size:14px}.mission-desc{font-size:12px;color:#ffffff80}.mission-reward{font-size:14px;font-weight:600}.gameover-screen{background:linear-gradient(180deg,#0a0000,#1a0000 30%,#001a2e)}.gameover-panel{text-align:center}.gameover-title{font-size:36px;color:#f44!important;margin-bottom:8px}.gameover-shark{font-size:48px;margin-bottom:20px}.gameover-stats{margin-bottom:24px}.stat-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:15px}.stat-val{font-weight:700;color:#fff}.stat-row.highlight{border-bottom-color:#ffd70033;color:gold}.stat-row.highlight .stat-val{color:gold}.stat-row.mission-complete{color:#4ecdc4;border-bottom-color:#4ecdc433}.new-high-score{font-size:18px;font-weight:900;color:gold;margin-top:12px;animation:comboPulse .5s ease-out}.gameover-btns{gap:16px}.panel::-webkit-scrollbar{width:6px}.panel::-webkit-scrollbar-track{background:transparent}.panel::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:3px}@media(max-width:600px){.title{font-size:36px}.title-shark{font-size:48px}.panel{padding:20px}.upgrade-grid{grid-template-columns:repeat(2,1fr)}.shark-grid{grid-template-columns:1fr}.hud-top{flex-wrap:wrap;gap:10px}}