*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;user-select:none}
html,body{width:100%;height:100%;overflow:hidden;font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:#0a0014}
#app{width:100%;height:100%;position:relative;overflow:hidden}

.page{position:absolute;top:0;left:0;width:100%;height:100%;display:none;flex-direction:column;align-items:center;justify-content:center}
.page.active{display:flex}

/* ===== START PAGE ===== */
#page-start{background:linear-gradient(180deg,#0a0014 0%,#1a0030 30%,#2d1050 60%,#1a0030 100%);overflow:hidden}
#page-start::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 50% 30%,rgba(168,85,247,0.15),transparent 50%),radial-gradient(circle at 30% 70%,rgba(236,72,153,0.1),transparent 40%),radial-gradient(circle at 70% 50%,rgba(249,115,22,0.08),transparent 35%);z-index:0}
#page-start::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(0deg,transparent,transparent 80px,rgba(168,85,247,0.03) 80px,rgba(168,85,247,0.03) 81px),repeating-linear-gradient(90deg,transparent,transparent 80px,rgba(168,85,247,0.03) 80px,rgba(168,85,247,0.03) 81px);z-index:0;pointer-events:none}

.start-bg-elements{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:hidden}
.float-emoji{position:absolute;font-size:28px;opacity:0.25;animation:floatEmoji 6s ease-in-out infinite;filter:blur(0.5px)}
@keyframes floatEmoji{0%,100%{transform:translateY(0) rotate(0deg);opacity:0.15}25%{transform:translateY(-15px) rotate(8deg);opacity:0.35}50%{transform:translateY(-8px) rotate(-5deg);opacity:0.25}75%{transform:translateY(-20px) rotate(3deg);opacity:0.3}}
.bg-orb{position:absolute;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(168,85,247,0.12),transparent 70%);animation:orbPulse 5s ease-in-out infinite;filter:blur(20px)}
@keyframes orbPulse{0%,100%{transform:scale(1);opacity:0.5}50%{transform:scale(1.3);opacity:0.8}}

.start-content{position:relative;z-index:1;text-align:center;padding:16px 20px;max-width:400px;width:90%}
.start-icon-wrap{position:relative;display:inline-block;margin-bottom:8px}
.start-icon{font-size:72px;animation:iconFloat 3s ease-in-out infinite;filter:drop-shadow(0 8px 30px rgba(168,85,247,0.5))}
@keyframes iconFloat{0%,100%{transform:translateY(0) rotate(0deg)}25%{transform:translateY(-12px) rotate(-5deg)}75%{transform:translateY(-6px) rotate(5deg)}}
.start-icon-ring{position:absolute;top:50%;left:50%;width:100px;height:100px;margin:-50px 0 0 -50px;border:2px solid rgba(168,85,247,0.3);border-radius:50%;animation:ringPulse 2s ease-in-out infinite}
@keyframes ringPulse{0%,100%{transform:scale(1);opacity:0.5;border-color:rgba(168,85,247,0.3)}50%{transform:scale(1.3);opacity:0;border-color:rgba(236,72,153,0.5)}}
.start-title{font-size:36px;background:linear-gradient(135deg,#e879f9,#ec4899,#f97316);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:10px 0 4px;letter-spacing:4px;text-shadow:none}
.start-sub{font-size:14px;color:rgba(168,85,247,0.6);letter-spacing:8px;margin-bottom:8px}
.start-highscore{font-size:14px;color:rgba(251,191,36,0.7);margin-bottom:16px;text-shadow:0 0 10px rgba(251,191,36,0.3);letter-spacing:1px}
.start-rules{background:rgba(168,85,247,0.08);border:1px solid rgba(168,85,247,0.2);border-radius:16px;padding:14px 16px;margin-bottom:20px;text-align:left;backdrop-filter:blur(4px);position:relative;overflow:hidden}
.start-rules::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(135deg,transparent,transparent 20px,rgba(168,85,247,0.03) 20px,rgba(168,85,247,0.03) 21px);pointer-events:none}
.rule-item{display:flex;align-items:center;gap:10px;padding:5px 0;color:rgba(255,255,255,0.8);font-size:13px;position:relative;z-index:1}
.rule-emoji{font-size:18px;flex-shrink:0;width:26px;text-align:center}
.btn-start{display:block;width:100%;padding:16px;border:none;border-radius:25px;font-size:20px;font-weight:bold;cursor:pointer;background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff;letter-spacing:4px;box-shadow:0 4px 20px rgba(168,85,247,0.4),0 0 40px rgba(168,85,247,0.15);transition:transform .15s,box-shadow .15s;margin-bottom:12px;position:relative;overflow:hidden}
.btn-start::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 40%,rgba(255,255,255,0.1) 50%,transparent 60%);animation:btnShine 3s ease-in-out infinite}
@keyframes btnShine{0%{transform:translateX(-100%) rotate(45deg)}100%{transform:translateX(100%) rotate(45deg)}}
.btn-start:active{transform:scale(0.95);box-shadow:0 2px 10px rgba(168,85,247,0.3)}
.btn-back{display:block;width:100%;padding:12px;border:1px solid rgba(168,85,247,0.3);border-radius:25px;font-size:14px;cursor:pointer;background:rgba(168,85,247,0.1);color:rgba(255,255,255,0.7);letter-spacing:2px;transition:transform .15s}
.btn-back:active{transform:scale(0.95)}

/* ===== GAME PAGE ===== */
#page-game{background:#0a0014;position:relative;overflow:hidden}
#gameCanvas{width:100%;height:100%;display:block;touch-action:none}

.game-hud{position:absolute;top:0;left:0;right:0;padding:8px 12px;display:flex;justify-content:space-between;align-items:center;pointer-events:none;z-index:10}
.hud-center{flex:1;display:flex;justify-content:center;gap:6px}
.hud-wave{border-color:rgba(96,165,250,0.4)!important;background:rgba(96,165,250,0.1)!important}
.hud-wave-val{color:#60a5fa!important;text-shadow:0 0 10px rgba(96,165,250,0.5)!important}
.hud-combo{border-color:rgba(249,115,22,0.5)!important;background:rgba(249,115,22,0.15)!important}
.hud-combo-val{color:#f97316!important;text-shadow:0 0 10px rgba(249,115,22,0.5)!important}
.game-guide{position:absolute;top:45%;left:50%;transform:translate(-50%,-50%);font-size:18px;color:rgba(232,121,249,0.9);text-shadow:0 0 20px rgba(168,85,247,0.5);pointer-events:none;z-index:20;animation:guidePulse 2s ease-in-out infinite;letter-spacing:2px;white-space:nowrap;background:rgba(10,0,20,0.5);backdrop-filter:blur(4px);padding:12px 24px;border-radius:20px;border:1px solid rgba(168,85,247,0.3)}
@keyframes guidePulse{0%,100%{opacity:0.7;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.03)}}
.game-guide.hidden{display:none}
.fusion-bar-wrap{position:absolute;bottom:70px;left:12px;right:12px;z-index:10;pointer-events:none}
.fusion-bar-label{font-size:10px;color:rgba(168,85,247,0.6);margin-bottom:2px;letter-spacing:1px}
.fusion-bar{width:100%;height:6px;background:rgba(0,0,0,0.4);border-radius:3px;overflow:hidden;border:1px solid rgba(168,85,247,0.2)}
.fusion-fill{height:100%;width:0%;border-radius:3px;background:linear-gradient(90deg,#a855f7,#ec4899,#f97316);transition:width .3s}
.fusion-tier{font-size:9px;color:rgba(255,255,255,0.3);margin-top:2px;text-align:center;letter-spacing:1px}
.hud-box{display:flex;align-items:center;gap:6px;background:rgba(10,0,20,0.7);backdrop-filter:blur(8px);border:1px solid rgba(168,85,247,0.3);border-radius:12px;padding:6px 14px;transition:border-color .3s,box-shadow .3s}
.hud-label{font-size:11px;color:rgba(255,255,255,0.5);text-transform:uppercase;letter-spacing:1px}
.hud-emoji{font-size:16px}
.hud-val{font-size:18px;font-weight:bold;color:#e879f9;text-shadow:0 0 10px rgba(168,85,247,0.5);transition:transform .15s}
.hud-val.bump{animation:hudBump .3s ease-out}
@keyframes hudBump{0%{transform:scale(1)}40%{transform:scale(1.3)}100%{transform:scale(1)}}
.hud-coin{color:#fbbf24;text-shadow:0 0 10px rgba(251,191,36,0.5)}

.game-bottom{position:absolute;bottom:0;left:0;right:0;padding:8px 12px;display:flex;justify-content:center;gap:8px;z-index:10;background:linear-gradient(transparent,rgba(10,0,20,0.8))}
.tool-btn{width:48px;height:48px;border-radius:12px;border:2px solid rgba(168,85,247,0.3);background:linear-gradient(135deg,rgba(168,85,247,0.15),rgba(10,0,20,0.8));color:#e879f9;font-size:18px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;transition:transform .15s,box-shadow .15s;backdrop-filter:blur(4px);box-shadow:0 2px 12px rgba(168,85,247,0.15)}
.tool-btn:active{transform:scale(0.9);box-shadow:0 0 20px rgba(168,85,247,0.4)}
.tool-btn .tool-label{font-size:8px;margin-top:1px;color:rgba(255,255,255,0.5)}
.tool-btn .tool-count{position:absolute;top:-6px;right:-6px;background:linear-gradient(135deg,#ec4899,#a855f7);color:#fff;font-size:10px;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:bold;box-shadow:0 2px 8px rgba(168,85,247,0.4)}
.tool-btn:disabled{opacity:0.4;cursor:default}
.tool-btn.zero .tool-count{background:linear-gradient(135deg,#f97316,#ef4444);animation:countPulse 1.5s ease-in-out infinite}
.tool-btn.zero{animation:toolBtnGlow 2s ease-in-out infinite}
@keyframes toolBtnGlow{0%,100%{border-color:rgba(249,115,22,0.3);box-shadow:0 2px 12px rgba(168,85,247,0.15)}50%{border-color:rgba(249,115,22,0.6);box-shadow:0 2px 16px rgba(249,115,22,0.3)}}
@keyframes countPulse{0%,100%{box-shadow:0 2px 8px rgba(249,115,22,0.4)}50%{box-shadow:0 2px 16px rgba(249,115,22,0.8)}}
.pause-btn{width:48px;height:48px;border-radius:12px;border:2px solid rgba(255,255,255,0.15);background:rgba(10,0,20,0.6);color:#e879f9;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}

.slow-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:28px;color:#60a5fa;text-shadow:0 0 20px rgba(96,165,250,0.8);pointer-events:none;z-index:20;animation:slowPulse 0.5s ease-in-out infinite}
@keyframes slowPulse{0%,100%{opacity:1;transform:translate(-50%,-50%) scale(1)}50%{opacity:0.6;transform:translate(-50%,-50%) scale(1.1)}}
.hidden{display:none!important}

.freeze-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(96,165,250,0.08);border:3px solid rgba(96,165,250,0.3);pointer-events:none;z-index:5;animation:freezePulse 1s ease-in-out infinite}
@keyframes freezePulse{0%,100%{border-color:rgba(96,165,250,0.3)}50%{border-color:rgba(96,165,250,0.6)}}

/* ===== COUNTDOWN ===== */
.countdown-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(10,0,20,0.6);display:none;align-items:center;justify-content:center;z-index:100;backdrop-filter:blur(3px)}
.countdown-overlay.active{display:flex}
.countdown-num{font-size:120px;font-weight:900;color:#e879f9;text-shadow:0 0 40px rgba(168,85,247,0.8),0 0 80px rgba(236,72,153,0.4);animation:countPop 0.8s ease-out}
@keyframes countPop{0%{transform:scale(2);opacity:0}30%{transform:scale(0.9);opacity:1}50%{transform:scale(1.1)}100%{transform:scale(1);opacity:0.9}}
.countdown-go{font-size:80px;font-weight:900;background:linear-gradient(135deg,#fbbf24,#f97316);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none;animation:goPop 0.6s ease-out}
@keyframes goPop{0%{transform:scale(3);opacity:0}40%{transform:scale(0.8);opacity:1}60%{transform:scale(1.2)}100%{transform:scale(1)}}

/* ===== GAME OVER ===== */
#page-over{background:rgba(10,0,20,0.95);backdrop-filter:blur(10px)}
.over-content{text-align:center;padding:20px;max-width:360px;width:90%}
.over-icon{font-size:64px;animation:overShake 0.5s ease-in-out}
@keyframes overShake{0%,100%{transform:rotate(0)}20%{transform:rotate(-10deg)}40%{transform:rotate(10deg)}60%{transform:rotate(-5deg)}80%{transform:rotate(5deg)}}
.over-title{font-size:32px;color:#ef4444;text-shadow:0 0 20px rgba(239,68,68,0.5);margin:8px 0 4px;letter-spacing:4px}
.over-sub{font-size:12px;color:rgba(255,255,255,0.3);letter-spacing:6px;margin-bottom:16px}
.result-row{display:flex;gap:12px;margin-bottom:12px}
.result-item{flex:1;background:rgba(168,85,247,0.1);border:1px solid rgba(168,85,247,0.2);border-radius:12px;padding:10px}
.result-label{font-size:11px;color:rgba(255,255,255,0.5);margin-bottom:4px}
.result-value{font-size:24px;font-weight:bold;color:#e879f9;text-shadow:0 0 10px rgba(168,85,247,0.5)}
.btn-double{display:block;width:100%;padding:14px;border:2px solid rgba(249,115,22,0.5);border-radius:25px;font-size:15px;cursor:pointer;background:linear-gradient(135deg,rgba(249,115,22,0.2),rgba(236,72,153,0.2));color:#f97316;letter-spacing:2px;margin-bottom:12px;transition:transform .15s;position:relative;overflow:hidden}
.btn-double:active{transform:scale(0.95)}
.btn-double:disabled{opacity:0.4;cursor:default}
.btn-restart{display:block;width:100%;padding:14px;border:none;border-radius:25px;font-size:18px;font-weight:bold;cursor:pointer;background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff;letter-spacing:3px;box-shadow:0 4px 20px rgba(168,85,247,0.4);margin-bottom:12px;transition:transform .15s}
.btn-restart:active{transform:scale(0.95)}
.btn-back{display:block;width:100%;padding:12px;border:1px solid rgba(168,85,247,0.3);border-radius:25px;font-size:14px;cursor:pointer;background:rgba(168,85,247,0.1);color:rgba(255,255,255,0.7);letter-spacing:2px;transition:transform .15s}
.btn-back:active{transform:scale(0.95)}

/* ===== PAUSE OVERLAY ===== */
.pause-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(10,0,20,0.85);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;z-index:50;flex-direction:column;gap:16px}
.pause-overlay.active{display:flex}
.pause-title{font-size:32px;color:#e879f9;text-shadow:0 0 20px rgba(168,85,247,0.5);letter-spacing:6px;margin-bottom:10px}
.pause-btn{padding:14px 40px;border:2px solid rgba(168,85,247,0.4);border-radius:25px;font-size:16px;cursor:pointer;background:linear-gradient(135deg,rgba(168,85,247,0.2),rgba(10,0,20,0.8));color:#e879f9;letter-spacing:3px;transition:transform .15s;min-width:200px}
.pause-btn:active{transform:scale(0.95)}
.pause-btn.primary{background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff;border:none;box-shadow:0 4px 20px rgba(168,85,247,0.4)}

/* ===== BUFF ACTIVE INDICATOR ===== */
.buff-indicator{position:absolute;top:50px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:15;pointer-events:none}
.buff-tag{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:bold;animation:buffGlow 1s ease-in-out infinite}
.buff-tag.gravity{background:rgba(239,68,68,0.3);color:#fca5a5;border:1px solid rgba(239,68,68,0.5)}
.buff-tag.sticky{background:rgba(34,197,94,0.3);color:#86efac;border:1px solid rgba(34,197,94,0.5)}
.buff-tag.freeze{background:rgba(96,165,250,0.3);color:#93c5fd;border:1px solid rgba(96,165,250,0.5)}
.buff-tag.double{background:rgba(251,191,36,0.3);color:#fde68a;border:1px solid rgba(251,191,36,0.5)}
@keyframes buffGlow{0%,100%{opacity:1}50%{opacity:0.7}}

/* ===== NEXT MATERIAL PREVIEW ===== */
.next-preview{position:absolute;top:8px;left:50%;transform:translateX(-50%);z-index:10;pointer-events:none;display:flex;align-items:center;gap:6px;background:rgba(10,0,20,0.7);backdrop-filter:blur(8px);border:1px solid rgba(168,85,247,0.3);border-radius:12px;padding:4px 14px;animation:nextPreviewPulse 2s ease-in-out infinite}
.next-label{font-size:11px;color:rgba(255,255,255,0.5)}
.next-emoji{font-size:22px;filter:drop-shadow(0 2px 6px rgba(168,85,247,0.5));animation:nextEmojiBounce 1.5s ease-in-out infinite}
@keyframes nextPreviewPulse{0%,100%{border-color:rgba(168,85,247,0.3);box-shadow:0 0 8px rgba(168,85,247,0.1)}50%{border-color:rgba(168,85,247,0.6);box-shadow:0 0 16px rgba(168,85,247,0.25)}}
@keyframes nextEmojiBounce{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-3px) scale(1.1)}}

/* ===== COMBO DISPLAY ===== */
.combo-display{position:absolute;top:40%;left:50%;transform:translate(-50%,-50%);font-size:48px;font-weight:bold;pointer-events:none;z-index:20;opacity:0;text-shadow:0 0 30px rgba(168,85,247,0.8),0 0 60px rgba(236,72,153,0.4)}
.combo-display.show{animation:comboPop 1s ease-out forwards}
@keyframes comboPop{0%{opacity:0;transform:translate(-50%,-50%) scale(0.3)}15%{opacity:1;transform:translate(-50%,-50%) scale(1.4)}30%{transform:translate(-50%,-50%) scale(1)}70%{opacity:1;transform:translate(-50%,-55%) scale(1.05)}100%{opacity:0;transform:translate(-50%,-65%) scale(0.9)}}

/* ===== FUSION FLASH ===== */
.fusion-flash{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:15;opacity:0}
.fusion-flash.active{animation:fusionFlash 0.4s ease-out}
@keyframes fusionFlash{0%{opacity:0.3;background:radial-gradient(circle,rgba(168,85,247,0.4),transparent 60%)}100%{opacity:0;background:transparent}}

/* ===== SCREEN SHAKE ===== */
.screen-shake{animation:screenShake 0.15s ease-out}
@keyframes screenShake{0%{transform:translate(0,0)}25%{transform:translate(-3px,2px)}50%{transform:translate(3px,-2px)}75%{transform:translate(-2px,1px)}100%{transform:translate(0,0)}}
.screen-shake-heavy{animation:screenShakeHeavy 0.25s ease-out}
@keyframes screenShakeHeavy{0%{transform:translate(0,0)}20%{transform:translate(-5px,4px)}40%{transform:translate(5px,-4px)}60%{transform:translate(-3px,2px)}80%{transform:translate(3px,-1px)}100%{transform:translate(0,0)}}

/* ===== WAVE ALERT ===== */
.wave-alert{position:absolute;top:35%;left:50%;transform:translate(-50%,-50%);pointer-events:none;z-index:25;opacity:0}
.wave-alert.show{animation:waveAlertAnim 1.5s ease-out forwards}
.wave-alert-text{font-size:36px;font-weight:900;color:#60a5fa;text-shadow:0 0 30px rgba(96,165,250,0.8),0 0 60px rgba(96,165,250,0.4);letter-spacing:4px;white-space:nowrap}
.wave-alert-sub{font-size:14px;color:rgba(96,165,250,0.7);text-align:center;margin-top:4px;letter-spacing:2px}
@keyframes waveAlertAnim{0%{opacity:0;transform:translate(-50%,-50%) scale(0.5)}15%{opacity:1;transform:translate(-50%,-50%) scale(1.1)}30%{transform:translate(-50%,-50%) scale(1)}70%{opacity:1}100%{opacity:0;transform:translate(-50%,-60%) scale(0.95)}}

/* ===== AD TOAST ===== */
.ad-toast{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(10,0,20,0.9);border:1px solid rgba(168,85,247,0.4);border-radius:16px;padding:16px 24px;z-index:200;backdrop-filter:blur(8px);text-align:center;animation:toastIn 0.3s ease-out}
.ad-toast-text{color:#e879f9;font-size:14px;letter-spacing:1px}
@keyframes toastIn{0%{opacity:0;transform:translate(-50%,-50%) scale(0.8)}100%{opacity:1;transform:translate(-50%,-50%) scale(1)}}

@media(max-height:600px){
  .tool-btn{width:42px;height:42px;font-size:16px}
  .hud-box{padding:4px 10px}
  .hud-val{font-size:16px}
  .start-icon{font-size:56px}
  .start-title{font-size:28px}
  .start-rules{padding:10px 12px}
  .rule-item{font-size:12px;padding:3px 0}
}