:root{--bg-dark:#0a1628;--bg-card:#0f1d32;--border-color:rgba(103,232,249,0.3);--text-primary:#f0f0f0;--text-secondary:#94a3b8;--sky-cyan:#67e8f9;--sky-blue:#38bdf8;--sky-light:#e0f2fe;--cloud-white:#f1f5f9;--gold:#fbbf24;--danger-red:#ef4444;--zephyra-teal:#2dd4bf;--zephyra-glow:rgba(45,212,191,0.5)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;overflow-x:hidden;display:flex;flex-direction:column}.animated-header{background:transparent !important;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.game-title,.start-title,.end-title,.hud-item,.final-score{font-family:'Orbitron',sans-serif}.start-subtitle,.diff-btn,.start-btn,.retry-btn,.submit-btn{font-family:'Rajdhani',sans-serif}.game-background{position:fixed;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(103,232,249,0.15) 0,transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(56,189,248,0.1) 0,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(14,165,233,0.08) 0,transparent 60%),linear-gradient(180deg,#0a1628 0,#0c4a6e 50%,#075985 100%);z-index:-1}.game-container{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;min-height:100vh;padding:100px 1rem 2rem;flex:1}.game-header{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:900px;margin-bottom:1rem;padding:0 1rem}.game-title{font-size:1.8rem;font-weight:900;background:linear-gradient(135deg,#67e8f9,#2dd4bf,#38bdf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(103,232,249,0.5)}.back-btn{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:rgba(103,232,249,0.1);border:1px solid var(--border-color);border-radius:8px;color:var(--text-secondary);text-decoration:none;font-weight:500;transition:all .3s}.back-btn:hover{background:rgba(103,232,249,0.2);color:var(--sky-cyan)}.game-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:20px;padding:1.5rem;box-shadow:0 20px 60px rgba(0,0,0,0.5);position:relative;overflow:hidden}.game-card::before{content:'';position:absolute;inset:-2px;background:linear-gradient(135deg,rgba(103,232,249,0.3),transparent 50%,rgba(45,212,191,0.2));border-radius:22px;z-index:-1}#game-canvas{border-radius:12px;display:block;cursor:pointer;background:linear-gradient(180deg,#7dd3fc 0,#38bdf8 30%,#0ea5e9 70%,#0284c7 100%)}.game-hud{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding:.75rem 1rem;background:rgba(0,0,0,0.3);border-radius:12px;border:1px solid var(--border-color)}.hud-item{display:flex;align-items:center;gap:.5rem;font-family:'Orbitron',sans-serif;font-weight:700}.hud-item i{font-size:1.2rem}.hud-coins{color:var(--gold)}.hud-score{color:var(--sky-cyan)}.hud-best{color:var(--zephyra-teal)}.start-screen,.end-screen{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,rgba(10,22,40,0.9) 0,rgba(10,22,40,0.98) 70%);border-radius:12px;z-index:10;padding:1rem;text-align:center}.hidden{display:none !important}.zephyra-mascot{width:140px;height:140px;margin-bottom:1.5rem;border-radius:50%;background:linear-gradient(135deg,#67e8f9,#2dd4bf);display:flex;align-items:center;justify-content:center;box-shadow:0 0 60px var(--zephyra-glow);animation:float 3s ease-in-out infinite;position:relative;overflow:hidden}.zephyra-mascot::before{content:'';position:absolute;inset:3px;border-radius:50%;background:linear-gradient(180deg,rgba(255,255,255,0.3) 0,transparent 50%)}.zephyra-mascot i{font-size:4rem;color:white;text-shadow:0 2px 10px rgba(0,0,0,0.2)}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}.start-title{font-size:2.5rem;font-weight:900;margin-bottom:.5rem;background:linear-gradient(135deg,#67e8f9,#2dd4bf);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.start-subtitle{color:var(--text-secondary);font-size:1.1rem;margin-bottom:2rem;max-width:400px}.difficulty-buttons{display:flex;gap:1rem;margin-bottom:2rem;flex-wrap:wrap;justify-content:center}.diff-btn{padding:1rem 2rem;border:2px solid var(--border-color);border-radius:12px;background:rgba(103,232,249,0.1);color:var(--text-primary);font-family:'Rajdhani',sans-serif;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s;min-width:120px}.diff-btn:hover{background:rgba(103,232,249,0.3);border-color:var(--sky-cyan);transform:translateY(-2px)}.diff-btn.active{background:var(--sky-cyan);border-color:var(--sky-cyan);color:#0a1628}.diff-btn .reward{display:block;font-size:.8rem;color:var(--gold);margin-top:.25rem}.diff-btn.active .reward{color:#0a1628}.start-btn{padding:1rem 3rem;font-family:'Orbitron',sans-serif;font-size:1.2rem;font-weight:700;background:linear-gradient(135deg,#67e8f9,#2dd4bf);color:#0a1628;border:0;border-radius:50px;cursor:pointer;transition:all .3s;box-shadow:0 10px 30px var(--zephyra-glow)}.start-btn:hover{transform:translateY(-3px);box-shadow:0 15px 40px var(--zephyra-glow)}.end-title{font-size:2rem;margin-bottom:.5rem}.end-title.victory{color:var(--gold)}.end-title.defeat{color:var(--danger-red)}.final-score{font-size:2.5rem;font-weight:900;color:var(--gold);margin-bottom:.5rem}.score-breakdown{color:var(--text-secondary);margin-bottom:1rem;font-size:.9rem}.end-buttons{display:flex;gap:.75rem;margin-top:.75rem}.retry-btn,.submit-btn{padding:.7rem 1.5rem;font-family:'Rajdhani',sans-serif;font-size:1rem;font-weight:700;border:0;border-radius:50px;cursor:pointer;transition:all .3s}.retry-btn{background:rgba(103,232,249,0.2);color:var(--sky-cyan);border:2px solid var(--sky-cyan)}.submit-btn{background:linear-gradient(135deg,#22c55e,#16a34a);color:white}.retry-btn:hover,.submit-btn:hover{transform:translateY(-2px)}.instructions-bar{width:100%;max-width:832px;background:linear-gradient(135deg,rgba(103,232,249,0.12),rgba(45,212,191,0.08));border:1px solid rgba(103,232,249,0.25);border-radius:12px;padding:.75rem 1.25rem;margin-bottom:1rem;display:flex;align-items:center;gap:.75rem;font-size:.9rem;color:var(--text-secondary)}.instructions-bar i{color:var(--sky-cyan);font-size:1.1rem}.instructions-bar strong{color:var(--sky-cyan)}.ad-multiplier-section{margin:12px 0 8px;padding:10px 16px;background:rgba(103,232,249,0.12);border:1px solid rgba(103,232,249,0.35);border-radius:8px}.ad-multiplier-section h4{color:var(--gold);font-size:.85rem;margin-bottom:8px;font-weight:600}.multiplier-buttons{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.multiplier-btn{padding:6px 12px;border-radius:6px;border:1px solid rgba(103,232,249,0.4);background:rgba(103,232,249,0.1);color:var(--sky-cyan);font-family:'Rajdhani',sans-serif;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:4px}.multiplier-btn:hover{background:rgba(103,232,249,0.2);transform:translateY(-2px)}.multiplier-btn.gold{border-color:rgba(251,191,36,0.4);background:rgba(251,191,36,0.1);color:var(--gold)}.game-leaderboard{margin-top:24px;background:var(--bg-card);border-radius:16px;border:1px solid var(--border-color);overflow:hidden}.leaderboard-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:rgba(103,232,249,0.08);border-bottom:1px solid var(--border-color)}.leaderboard-header h3{font-family:'Orbitron',sans-serif;font-size:1.1rem;color:var(--gold);display:flex;align-items:center;gap:8px}.leaderboard-reset{font-size:.8rem;color:var(--text-secondary);background:rgba(255,255,255,0.05);padding:4px 10px;border-radius:12px}.leaderboard-list{padding:12px;max-height:300px;overflow-y:auto}.leaderboard-entry{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;margin-bottom:6px;background:rgba(255,255,255,0.02);transition:background .2s}.leaderboard-entry:hover{background:rgba(255,255,255,0.05)}.leaderboard-entry.current-user{background:rgba(103,232,249,0.12);border:1px solid rgba(103,232,249,0.25)}.leaderboard-rank{font-family:'Orbitron',sans-serif;font-size:1rem;font-weight:700;width:32px;text-align:center}.leaderboard-rank.gold{color:#fbbf24}.leaderboard-rank.silver{color:#94a3b8}.leaderboard-rank.bronze{color:#cd7f32}.leaderboard-name{flex:1;font-weight:500}.leaderboard-name a{color:inherit;text-decoration:none;transition:color .2s}.leaderboard-name a:hover{color:var(--gold)}.leaderboard-score{font-family:'Orbitron',sans-serif;font-weight:700;color:var(--sky-cyan)}.leaderboard-empty,.leaderboard-loading{text-align:center;padding:24px;color:var(--text-secondary)}@media(max-width:768px){.game-container{padding:90px 12px 24px}.game-card{border-radius:12px;padding:1rem}.game-header{flex-direction:column;align-items:center;text-align:center;gap:12px}.game-title{font-size:1.5rem}#game-canvas{max-width:100%;height:auto !important}.difficulty-selector{flex-wrap:wrap;gap:8px}.difficulty-btn{min-width:90px;padding:10px 14px}.start-screen,.end-screen{overflow-y:auto;padding:1rem}.zephyra-mascot{width:80px !important;height:80px !important}.zephyra-mascot img{width:100px !important;height:100px !important}.start-title{font-size:1.8rem !important}.start-subtitle{font-size:.85rem !important}.diff-btn{padding:.5rem .8rem !important;font-size:.8rem !important}.start-btn{padding:.7rem 1.5rem !important;font-size:1rem !important}}@media(max-width:600px){.game-card{padding:.75rem}.zephyra-mascot{width:60px !important;height:60px !important;margin-bottom:.5rem !important}.zephyra-mascot img{width:80px !important;height:80px !important}.start-title,.end-title{font-size:1.4rem !important}.start-subtitle{font-size:.75rem !important;margin-bottom:.5rem !important}.difficulty-selector{gap:6px !important;margin-bottom:.5rem !important}.diff-btn{padding:.4rem .6rem !important;font-size:.75rem !important;min-width:70px !important}.start-btn{padding:.5rem 1rem !important;font-size:.85rem !important}.final-score{font-size:1.5rem !important}.score-breakdown{font-size:.75rem !important;margin-bottom:.5rem !important}.retry-btn,.submit-btn{padding:.5rem 1rem !important;font-size:.85rem !important}.end-buttons{gap:.5rem !important;flex-wrap:wrap}}@media(max-width:480px){.game-container{padding:85px 8px 20px}.game-title{font-size:1.3rem}.difficulty-btn{min-width:100%}.game-card{padding:.5rem}.zephyra-mascot{width:50px !important;height:50px !important}.zephyra-mascot img{width:60px !important;height:60px !important}.start-title,.end-title{font-size:1.2rem !important}.diff-btn{min-width:60px !important}.final-score{font-size:1.3rem !important}.score-breakdown{font-size:.7rem !important}.retry-btn,.submit-btn{padding:.4rem .8rem !important;font-size:.75rem !important}}@keyframes toastSlide{from{opacity:0;transform:translateX(-50%) translateY(20px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}.end-title.victory{animation:victoryPulse .5s ease-out}@keyframes victoryPulse{0%{transform:scale(0.8);opacity:0}50%{transform:scale(1.1)}100%{transform:scale(1);opacity:1}}