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700px){.mobile-hud{gap:4px}.mobile-hud-title{font-size:16px;letter-spacing:2px}.hud-icon{width:34px;height:34px;font-size:14px;border-radius:10px}.mobile-next,.mobile-scoreboard{padding:5px 8px;border-radius:13px}.next-piece-canvas-mobile{width:40px;height:40px}.next-piece-canvas-mobile-sm{width:28px;height:28px}.mobile-score-value{font-size:18px}.mobile-metric{padding:3px 2px}}@media (max-width: 360px){.pad-cluster{gap:6px}.pad-btn{width:48px;height:48px;border-radius:16px}.pad-btn-action{width:54px;height:54px;font-size:22px}}@media (max-height: 520px) and (orientation: landscape){.game-container{gap:0;padding:calc(6px + env(safe-area-inset-top)) calc(8px + env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) calc(8px + env(safe-area-inset-left))}.mobile-hud{position:fixed;top:calc(6px + env(safe-area-inset-top));left:calc(8px + 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8px}.next-piece-canvas-mobile{width:46px;height:46px}.next-piece-canvas-mobile-sm{width:32px;height:32px}.mobile-score-value{font-size:21px}.leaderboard-header h2{font-size:20px}.next-piece-canvas{width:60px;height:60px}.button-group{gap:5px}.pause-button,.reset-button{padding:8px;font-size:13px}}.game-over{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--overlay-bg);color:var(--overlay-text);padding:clamp(20px,5vw,40px);width:max-content;max-width:min(92vw,460px);border-radius:20px;text-align:center;z-index:1000;border:3px solid var(--overlay-border)}.game-over h1{font-size:clamp(26px,7vw,48px);margin-bottom:clamp(10px,2vw,20px);color:#ef4444}.game-over p{font-size:clamp(17px,4vw,24px);margin-bottom:clamp(16px,4vw,30px)}.game-over button{font-size:clamp(15px,4vw,20px);padding:clamp(11px,3vw,15px) clamp(18px,6vw,40px);background:var(--btn-primary-bg);color:var(--btn-text);border:none;border-radius:10px;cursor:pointer;font-weight:700;transition:background .3s}.game-over button:hover{background:var(--btn-primary-hover-bg)}.game-over-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.game-over .menu-button{background:var(--btn-menu-bg)}.game-over .menu-button:hover{background:var(--btn-menu-hover-bg)}.pause-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--overlay-bg);color:var(--overlay-text);padding:clamp(12px,2.5vh,30px) clamp(20px,5vh,60px);border-radius:15px;text-align:center;z-index:999;font-size:clamp(20px,4vh,36px);font-weight:700;max-width:90%;white-space:nowrap}.button-group{display:flex;flex-direction:column;gap:clamp(5px,.9vh,9px)}.button-row{display:flex;gap:10px}.button-row button{flex:1;width:auto;font-size:15px;padding:14px 8px}.start-button,.pause-button,.reset-button,.menu-button{width:100%;padding:clamp(6px,1.1vh,11px);font-size:clamp(12px,1.5vh,16px);font-weight:700;color:var(--btn-text);border:2px solid rgba(255,255,255,.25);border-radius:10px;cursor:pointer;transition:all .3s;text-transform:uppercase;letter-spacing:1px}.start-button{background:var(--btn-save-bg)}.start-button:hover{background:var(--btn-save-hover-bg);transform:translateY(-2px);box-shadow:0 4px 12px var(--btn-save-glow)}.pause-button{background:var(--btn-pause-bg)}.pause-button:hover{background:var(--btn-pause-hover-bg);transform:translateY(-2px);box-shadow:0 4px 12px var(--btn-pause-glow)}.reset-button{background:var(--btn-reset-bg)}.reset-button:hover{background:var(--btn-reset-hover-bg);transform:translateY(-2px);box-shadow:0 4px 12px var(--btn-reset-glow)}.menu-button{background:var(--btn-menu-bg)}.menu-button:hover{background:var(--btn-menu-hover-bg);transform:translateY(-2px);box-shadow:0 4px 12px var(--btn-menu-glow)}.start-button:active,.pause-button:active,.reset-button:active,.menu-button:active{transform:translateY(0)}.nickname-prompt{margin-top:20px;display:flex;flex-direction:column;gap:15px}.prompt-text{font-size:18px!important;margin-bottom:5px!important;color:var(--overlay-text)}.nickname-prompt input{padding:12px 15px;font-size:16px;border:2px solid var(--input-border);border-radius:8px;background:var(--input-bg);color:var(--input-text);text-align:center;transition:all .3s}.nickname-prompt input::placeholder{color:var(--input-placeholder)}.nickname-prompt input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 10px #667eea80}.nickname-prompt input:disabled{opacity:.6;cursor:not-allowed}.prompt-buttons{display:flex;gap:10px;justify-content:center}.save-button,.skip-button{flex:1;font-size:clamp(14px,3.6vw,16px);padding:12px clamp(10px,3vw,20px);white-space:nowrap;border:none;border-radius:8px;cursor:pointer;font-weight:700;transition:all .3s}.save-button{background:var(--btn-save-bg);color:var(--btn-text)}.save-button:hover:not(:disabled){background:var(--btn-save-hover-bg);transform:translateY(-2px);box-shadow:0 4px 12px var(--btn-save-glow)}.save-button:disabled{opacity:.6;cursor:not-allowed}.skip-button{background:var(--key-bg);color:var(--overlay-text);border:1px solid var(--key-border)}.skip-button:hover:not(:disabled){background:var(--key-border);transform:translateY(-2px)}.skip-button:disabled{opacity:.6;cursor:not-allowed}.leaderboard-button{background:var(--btn-primary-bg);color:var(--btn-text);font-size:clamp(13px,1.8vh,19px);padding:clamp(7px,1.3vh,13px) 25px;font-weight:900;position:relative;overflow:hidden;box-shadow:0 6px 20px #667eea99,0 0 30px #764ba24d;border:2px solid rgba(255,255,255,.3);animation:rankingPulse 2s ease-in-out infinite}.leaderboard-button:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent,rgba(255,255,255,.1),transparent);transform:rotate(45deg);animation:rankingShine 3s linear infinite}.leaderboard-button:hover{background:var(--btn-primary-hover-bg);transform:translateY(-3px) scale(1.02);box-shadow:0 8px 25px #667eeacc,0 0 40px #764ba280,inset 0 0 20px #ffffff1a;animation:none}.trophy-icon{display:inline-block;font-size:24px;animation:trophyBounce 1s ease-in-out infinite;filter:drop-shadow(0 0 8px rgba(255,215,0,.8))}@keyframes rankingPulse{0%,to{box-shadow:0 6px 20px #667eea99,0 0 30px #764ba24d}50%{box-shadow:0 8px 25px #667eeacc,0 0 45px #764ba280}}@keyframes rankingShine{0%{left:-50%}to{left:150%}}@keyframes trophyBounce{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-3px) scale(1.1)}}.leaderboard-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--scrim);display:flex;justify-content:center;align-items:center;z-index:2000}.leaderboard-modal{background:var(--modal-bg);border:3px solid var(--accent);border-radius:20px;padding:clamp(16px,4vw,30px);width:min(600px,92vw);max-height:80vh;display:flex;flex-direction:column;box-shadow:0 8px 32px var(--accent-glow)}.leaderboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid var(--accent-glow)}.leaderboard-header h2{color:var(--text);font-size:32px;margin:0;text-shadow:0 0 10px var(--accent-glow)}.close-button{background:var(--key-bg);border:2px solid var(--key-border);color:var(--text);font-size:32px;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;justify-content:center;align-items:center;line-height:1;transition:all .3s;padding:0}.close-button:hover{background:#ff6b6bcc;border-color:#ff6b6b;transform:rotate(90deg)}.leaderboard-content{flex:1;overflow-y:auto}.leaderboard-message{color:var(--score-color);font-size:14px;font-weight:600;text-align:center;margin:-8px 0 16px}.loading-text,.empty-text{color:var(--text-muted);font-size:18px;text-align:center;padding:40px 20px}.leaderboard-list{display:flex;flex-direction:column;gap:10px}.leaderboard-entry{display:flex;justify-content:space-between;align-items:center;background:var(--entry-bg);border:2px solid var(--entry-border);border-radius:10px;padding:15px 20px;transition:all .3s}.leaderboard-entry:hover{background:var(--key-bg);border-color:var(--accent);transform:translate(5px)}.leaderboard-entry.rank-1{background:#ffd7001a;border-color:#ffd70080}.leaderboard-entry.rank-2{background:#c0c0c01a;border-color:#c0c0c080}.leaderboard-entry.rank-3{background:#cd7f321a;border-color:#cd7f3280}.rank{color:var(--accent);font-weight:700;font-size:20px;min-width:50px}.leaderboard-entry.rank-1 .rank{color:gold;text-shadow:0 0 10px rgba(255,215,0,.8)}.leaderboard-entry.rank-2 .rank{color:silver;text-shadow:0 0 10px rgba(192,192,192,.8)}.leaderboard-entry.rank-3 .rank{color:#cd7f32;text-shadow:0 0 10px rgba(205,127,50,.8)}.player-name{flex:1;color:var(--text);font-size:18px;font-weight:500;margin:0 20px}.player-score{color:var(--score-color);font-size:20px;font-weight:700;text-shadow:0 0 5px var(--btn-save-glow)}.landing{position:relative;width:100%;height:100dvh;display:flex;align-items:center;justify-content:center;padding:20px}.landing-card{background:var(--surface-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--surface-border);border-radius:24px;box-shadow:0 20px 60px 0 var(--surface-shadow),inset 0 1px 1px var(--surface-inset);padding:48px 44px;width:min(100%,460px);display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center}.landing-title{font-family:Orbitron,Arial,sans-serif;font-size:56px;font-weight:900;letter-spacing:8px;text-align:center;background:var(--title-gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 12px var(--title-glow))}.landing-subtitle{color:var(--text-muted);font-size:14px;letter-spacing:1px;margin-top:-8px}.landing-start-button{width:100%;padding:18px;font-family:Orbitron,Arial,sans-serif;font-size:20px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--btn-text);background:var(--btn-start-bg);border:none;border-radius:14px;cursor:pointer;box-shadow:0 10px 30px var(--btn-start-glow);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}.landing-start-button:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 14px 36px var(--btn-start-glow)}.landing-start-button:active{transform:translateY(0);box-shadow:0 6px 18px var(--btn-start-glow)}.landing-start-button:focus-visible{outline:3px solid var(--overlay-border);outline-offset:3px}.landing-ranking-button{width:100%;margin-top:-10px;padding:13px;display:flex;align-items:center;justify-content:center;gap:10px;font-family:Orbitron,Arial,sans-serif;font-size:15px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--text);background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:14px;cursor:pointer;box-shadow:inset 0 1px 1px var(--panel-inset);transition:transform .2s ease,background .2s ease,border-color .2s ease}.landing-ranking-button:hover{transform:translateY(-2px);background:var(--key-bg);border-color:var(--accent)}.landing-ranking-button:active{transform:translateY(0)}.landing-ranking-button:focus-visible{outline:3px solid var(--overlay-border);outline-offset:3px}.landing-ranking-button .trophy-icon{font-size:18px}.landing-controls{width:100%;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:14px;padding:18px 20px;box-shadow:inset 0 1px 1px var(--panel-inset)}.landing-controls h2{color:var(--text-muted);font-size:12px;font-weight:700;letter-spacing:2px;text-transform:uppercase;margin-bottom:14px}.landing-controls-grid p,.landing-touch-grid p{color:var(--text-soft);font-size:13px;margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;gap:12px}.landing-touch-grid,.landing-mobile-hint{display:none}@media (max-width: 768px),(max-height: 520px){.landing-controls-grid{display:none}.landing-touch-grid,.landing-mobile-hint{display:block}}.landing-mobile-hint{color:var(--text-faint);font-size:11px;line-height:1.5;margin-top:4px}.theme-picker{position:absolute;top:24px;right:24px;display:flex;gap:4px;padding:5px;border-radius:999px;border:1px solid var(--surface-border);background:var(--surface-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 8px 20px var(--surface-shadow)}.theme-option{display:flex;align-items:center;gap:7px;padding:8px 14px;border:none;border-radius:999px;background:transparent;color:var(--text-muted);font-family:inherit;font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;cursor:pointer;transition:color .2s ease,background .2s ease}.theme-option:hover{color:var(--text);background:var(--key-bg)}.theme-option.is-active{color:var(--text);background:var(--key-bg);box-shadow:inset 0 0 0 1px var(--key-border)}.theme-option:focus-visible{outline:3px solid var(--overlay-border);outline-offset:2px}.theme-option-icon{font-size:15px;line-height:1}@media (max-width: 768px){.theme-option-label{display:none}.theme-option{padding:8px 12px}}@media (max-width: 480px){.landing-card{padding:32px 24px;gap:18px}.landing-title{font-size:40px}.theme-picker{top:14px;right:14px;padding:4px}.theme-option{padding:7px 10px}}