:root{--primary-color: #3b82f6;--primary-hover: #2563eb;--bg-dark: #080b11;--bg-card: rgba(20, 27, 45, .7);--text-light: #f3f4f6;--text-muted: #9ca3af;--accent-gold: #fbbf24;--text-success: #10b981;--text-warning: #f59e0b;--glow-shadow: 0 0 20px rgba(59, 130, 246, .25);--glass-border: 1px solid rgba(255, 255, 255, .08)}body{margin:0;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-dark);color:var(--text-light);background-image:radial-gradient(circle at top right,rgba(59,130,246,.12),transparent 500px),radial-gradient(circle at bottom left,rgba(99,102,241,.08),transparent 600px)}.app-container{display:flex;flex-direction:column;min-height:100vh}.game-header{display:flex;justify-content:space-between;align-items:center;padding:15px 40px;background-color:#0b0f19cc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:var(--glass-border);z-index:10;box-shadow:0 4px 30px #0003}@media (max-width: 768px){.game-header{flex-direction:column;gap:12px;padding:15px 20px}}.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;cursor:pointer;letter-spacing:.5px}.logo-icon{color:var(--primary-color);animation:spin 12s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.subtitle{font-size:11px;color:var(--primary-color);background:#3b82f626;padding:2px 8px;border-radius:20px;margin-left:5px;border:1px solid rgba(59,130,246,.3)}.parts-badge{display:flex;align-items:center;gap:8px;background:#fbbf241a;border:1px solid rgba(251,191,36,.25);padding:8px 16px;border-radius:30px;font-size:14px;box-shadow:0 0 15px #fbbf240d;transition:transform .2s}.parts-badge:hover{transform:scale(1.03)}.nav-buttons{display:flex;gap:8px}.nav-btn{display:flex;align-items:center;gap:6px;background:transparent;border:none;color:var(--text-muted);padding:10px 18px;border-radius:12px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:600;font-size:14px}.nav-btn:hover{color:#fff;background-color:#ffffff0d}.nav-btn.active{color:#fff;background-color:#3b82f626;border:1px solid rgba(59,130,246,.3);box-shadow:var(--glow-shadow)}.game-content{flex:1;padding:40px 20px;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.menu-screen{display:flex;flex-direction:column;gap:50px;align-items:center;text-align:center;padding-top:20px}.hero-section{max-width:800px}.badge{display:inline-flex;align-items:center;background:#3b82f61a;color:#60a5fa;border:1px solid rgba(59,130,246,.25);padding:6px 16px;border-radius:30px;font-size:13px;font-weight:600;margin-bottom:24px;box-shadow:var(--glow-shadow)}.hero-section h1{font-size:52px;margin:0 0 20px;font-weight:800;letter-spacing:-1px;background:linear-gradient(135deg,#fff 30%,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-section p{font-size:18px;color:var(--text-muted);line-height:1.6;margin-bottom:35px}.action-group{display:flex;gap:16px;justify-content:center}@media (max-width: 480px){.action-group{flex-direction:column}}.btn-primary{display:flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--primary-color),#1d4ed8);color:#fff;border:none;padding:14px 32px;border-radius:14px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 15px #3b82f666}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #3b82f699}.btn-secondary{display:flex;align-items:center;justify-content:center;gap:8px;background-color:#ffffff08;color:#fff;border:var(--glass-border);padding:14px 32px;border-radius:14px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.btn-secondary:hover{background-color:#ffffff14;border-color:#fff3;transform:translateY(-2px)}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;width:100%}.feat-card{background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:30px;border-radius:20px;border:var(--glass-border);transition:all .3s cubic-bezier(.4,0,.2,1);text-align:left}.feat-card:hover{transform:translateY(-6px);border-color:#3b82f64d;box-shadow:var(--glow-shadow)}.feat-icon{font-size:44px;margin-bottom:20px}.feat-card h3{margin:0 0 10px;font-size:20px;font-weight:700}.feat-card p{margin:0;color:var(--text-muted);line-height:1.6;font-size:14px}.section-title{font-size:36px;font-weight:800;margin:0 0 10px;text-align:center;background:linear-gradient(135deg,#fff,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.section-desc{text-align:center;color:var(--text-muted);margin-bottom:40px;font-size:16px}.level-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:30px;margin-top:30px}.level-card{background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:24px;overflow:hidden;border:var(--glass-border);display:flex;flex-direction:column;transition:all .3s cubic-bezier(.4,0,.2,1)}.level-card:hover{transform:translateY(-6px);border-color:#ffffff26;box-shadow:0 10px 30px #0000004d}.level-card-header{padding:35px 30px;position:relative;color:#fff}.level-num{position:absolute;right:20px;top:15px;font-size:56px;font-weight:900;opacity:.12}.level-card-header h3{margin:0;font-size:22px;font-weight:800}.level-card-body{padding:30px;flex:1;display:flex;flex-direction:column;justify-content:space-between;gap:24px}.level-card-body p{margin:0;color:var(--text-muted);line-height:1.6;font-size:15px}.level-meta{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--text-light);background:#ffffff05;padding:14px;border-radius:12px;border:1px solid rgba(255,255,255,.04)}.btn-start-level{display:flex;align-items:center;justify-content:center;gap:6px;background-color:var(--primary-color);color:#fff;border:none;padding:14px;border-radius:12px;font-weight:700;cursor:pointer;transition:all .2s}.btn-start-level:hover{background-color:var(--primary-hover);box-shadow:var(--glow-shadow)}.lock-notice{display:flex;align-items:center;justify-content:center;gap:8px;color:#ef4444;background:#ef444414;border:1px solid rgba(239,68,68,.2);padding:14px;border-radius:12px;font-size:14px;font-weight:600}.level-card.locked{opacity:.5}.tab-header{display:flex;justify-content:center;gap:16px;margin-bottom:40px}.tab-btn{display:flex;align-items:center;gap:8px;background-color:#ffffff05;border:var(--glass-border);color:var(--text-muted);padding:12px 28px;border-radius:14px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1)}.tab-btn.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 20px #3b82f666}.model-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:30px}.model-card{background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:24px;padding:30px;border:2px solid transparent;display:flex;flex-direction:column;align-items:center;text-align:center;transition:all .3s cubic-bezier(.4,0,.2,1)}.model-card.selected{border-color:var(--primary-color);background-image:linear-gradient(to bottom,rgba(59,130,246,.08),transparent);box-shadow:var(--glow-shadow)}.model-avatar{font-size:72px;margin-bottom:20px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.3))}.model-info{width:100%}.model-info h3{margin:0 0 10px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:20px;font-weight:800}.active-tag{font-size:11px;background-color:var(--primary-color);color:#fff;padding:2px 8px;border-radius:20px;font-weight:600}.model-info p{color:var(--text-muted);font-size:13px;line-height:1.5;height:60px;overflow:hidden;margin-bottom:20px}.stats{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}.stat-row{display:flex;justify-content:space-between;align-items:center;font-size:12px}.stat-bar{width:130px;height:6px;background-color:#ffffff0f;border-radius:10px;overflow:hidden}.stat-fill{height:100%;background-color:var(--primary-color);border-radius:10px}.btn-select-model{width:100%;background-color:#ffffff08;color:#fff;border:var(--glass-border);padding:12px;border-radius:10px;cursor:pointer;font-weight:700;transition:all .2s}.btn-select-model:hover{background-color:#ffffff14}.btn-select-model.active{background-color:var(--primary-color);border-color:var(--primary-color)}.btn-go-workshop{width:100%;background-color:#fbbf241a;border:1px solid rgba(251,191,36,.3);color:var(--accent-gold);padding:12px;border-radius:10px;cursor:pointer;font-weight:700;transition:all .2s}.btn-go-workshop:hover{background-color:#fbbf2426}.workshop-container{display:grid;grid-template-columns:300px 1fr;gap:30px;background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:24px;padding:30px;border:var(--glass-border)}@media (max-width: 900px){.workshop-container{grid-template-columns:1fr}}.workshop-sidebar h3{margin:0 0 20px;font-size:18px;font-weight:800}.blueprint-list{display:flex;flex-direction:column;gap:12px}.blueprint-item{display:flex;align-items:center;gap:14px;background-color:#ffffff05;border:var(--glass-border);color:#fff;padding:14px;border-radius:14px;cursor:pointer;text-align:left;transition:all .3s cubic-bezier(.4,0,.2,1)}.blueprint-item:hover{background-color:#ffffff0d}.blueprint-item.active{border-color:var(--primary-color);background-color:#3b82f626;box-shadow:var(--glow-shadow)}.bp-icon{font-size:32px}.bp-info{display:flex;flex-direction:column}.bp-name{font-weight:700;font-size:15px}.bp-status{font-size:11px;color:var(--text-muted);margin-top:2px}.blueprint-detail{display:flex;flex-direction:column;gap:30px}.bp-detail-header{display:flex;align-items:center;gap:24px;border-bottom:1px solid rgba(255,255,255,.06);padding-bottom:24px}.bp-large-icon{font-size:72px}.bp-detail-header h2{margin:0 0 8px;font-weight:800}.bp-detail-header p{margin:0;color:var(--text-muted);line-height:1.5;font-size:14px}.recipe-box{background-color:#ffffff03;border:1px dashed rgba(255,255,255,.12);border-radius:16px;padding:24px}.recipe-box h4{margin:0 0 18px;color:var(--accent-gold);font-weight:700}.recipe-steps{display:flex;gap:16px}@media (max-width: 600px){.recipe-steps{flex-direction:column}}.recipe-step{flex:1;background-color:#0003;padding:14px;border-radius:12px;display:flex;flex-direction:column;gap:6px;border:1px solid rgba(255,255,255,.03)}.step-label{font-size:11px;color:var(--text-muted);text-transform:uppercase}.step-val{font-size:14px;color:#fff;font-weight:700}.assembly-controls{background-color:#3b82f608;border:1px solid rgba(59,130,246,.15);border-radius:16px;padding:24px}.assembly-controls h3{margin:0 0 20px;font-weight:800}.selectors-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}@media (max-width: 600px){.selectors-grid{grid-template-columns:1fr}}.selector-group{display:flex;flex-direction:column;gap:8px}.selector-group label{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:6px;font-weight:600}.selector-group select{background-color:#0000004d;color:#fff;border:var(--glass-border);padding:12px;border-radius:10px;cursor:pointer;font-weight:600;outline:none;transition:all .2s}.selector-group select:focus{border-color:var(--primary-color);box-shadow:var(--glow-shadow)}.assembly-msg{padding:14px;border-radius:12px;font-size:14px;margin-bottom:24px;line-height:1.5;font-weight:600}.assembly-msg.success{background-color:#10b9811a;color:var(--text-success);border:1px solid rgba(16,185,129,.2)}.assembly-msg.error{background-color:#ef44441a;color:#ef4444;border:1px solid rgba(239,68,68,.2)}.already-unlocked-msg{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--text-success);font-weight:700;background:#10b9810d;padding:14px;border-radius:12px}.btn-assemble-action{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--accent-gold),#d97706);color:#fff;border:none;padding:14px;border-radius:12px;font-weight:800;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px #f59e0b4d}.btn-assemble-action:hover{transform:translateY(-2px);box-shadow:0 6px 20px #f59e0b80}.science-layout{display:grid;grid-template-columns:320px 1fr;gap:30px;margin-top:30px}@media (max-width: 768px){.science-layout{grid-template-columns:1fr}}.science-nav{display:flex;flex-direction:column;gap:12px}.science-nav-item{display:flex;align-items:center;gap:14px;background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:var(--glass-border);color:var(--text-muted);padding:18px;border-radius:16px;cursor:pointer;text-align:left;transition:all .3s cubic-bezier(.4,0,.2,1)}.science-nav-item:hover{background-color:#ffffff0d;color:#fff}.science-nav-item.active{background-color:#3b82f626;border-color:var(--primary-color);color:#fff;box-shadow:var(--glow-shadow)}.lesson-icon{font-size:28px}.science-detail{background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:var(--glass-border);padding:40px;border-radius:24px;display:flex;flex-direction:column;gap:24px}.detail-header{display:flex;align-items:center;gap:16px;border-bottom:1px solid rgba(255,255,255,.06);padding-bottom:20px}.detail-icon{font-size:40px}.detail-header h3{margin:0;font-size:24px;font-weight:800}.detail-content{font-size:16px;line-height:1.8;color:var(--text-light)}.btn-tts{align-self:flex-start;display:flex;align-items:center;gap:8px;background-color:#3b82f61a;border:1px solid rgba(59,130,246,.3);color:var(--primary-color);padding:12px 24px;border-radius:12px;font-weight:700;cursor:pointer;transition:all .2s}.btn-tts:hover{background-color:#3b82f633;box-shadow:var(--glow-shadow)}.game-stage-container{display:flex;flex-direction:column;gap:20px;background-color:#0b0f19e6;border:var(--glass-border);border-radius:24px;padding:24px;box-shadow:0 10px 40px #00000080}.hud-panel{display:flex;justify-content:space-between;align-items:center;background:#ffffff05;border:var(--glass-border);padding:14px 24px;border-radius:16px}@media (max-width: 768px){.hud-panel{flex-direction:column;gap:14px}}.btn-back{background:#ffffff0d;border:var(--glass-border);color:#fff;padding:8px 16px;border-radius:10px;cursor:pointer;font-weight:600;transition:all .2s}.btn-back:hover{background:#ffffff1a}.hud-stats{display:flex;gap:24px;align-items:center}@media (max-width: 600px){.hud-stats{flex-direction:column;gap:10px;width:100%}}.hud-item{display:flex;flex-direction:column;gap:4px}.hud-item .label{font-size:11px;color:var(--text-muted);font-weight:700;text-transform:uppercase}.hud-item .value{font-size:18px;font-weight:800}.fuel-bar{width:100px;height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden;margin-top:4px}.fuel-fill{height:100%;transition:width .1s linear}.btn-pause{background:var(--primary-color);border:none;color:#fff;padding:8px 16px;border-radius:10px;cursor:pointer;font-weight:700}.canvas-wrapper{position:relative;width:100%;border-radius:16px;overflow:hidden;border:1px solid rgba(59,130,246,.3);box-shadow:var(--glow-shadow)}.game-canvas{display:block;width:100%;height:auto;background-color:#000}.pause-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#0b0f19d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff}.pause-overlay h2{font-size:32px;margin-bottom:10px;font-weight:800}.control-guide{display:flex;flex-direction:column;gap:20px;align-items:center}.keyboard-guide{font-size:13px;color:var(--text-muted)}.keyboard-guide kbd{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:4px;padding:2px 6px;margin:0 2px}.mobile-controls{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;max-width:280px}.control-row{display:flex;gap:10px;width:100%;justify-content:center}.control-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;background:#ffffff08;border:var(--glass-border);color:#fff;padding:14px;border-radius:14px;cursor:pointer;font-weight:700;-webkit-user-select:none;user-select:none;touch-action:manipulation;transition:all .1s}.control-btn:active{background:var(--primary-color);box-shadow:var(--glow-shadow);transform:scale(.95)}.summary-screen{display:flex;justify-content:center;padding-top:40px}.summary-card{background-color:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:28px;padding:50px 40px;text-align:center;max-width:500px;width:100%;border:var(--glass-border);box-shadow:0 15px 40px #0006}.summary-icon{font-size:72px;margin-bottom:24px}.summary-card h2{font-size:32px;font-weight:800;margin:0 0 12px}.summary-card.win h2{color:var(--text-success)}.summary-card.lose h2{color:#ef4444}.summary-desc{color:var(--text-muted);line-height:1.6;font-size:15px;margin-bottom:30px}.score-board{display:flex;gap:16px;margin-bottom:35px}.score-item{flex:1;background-color:#0003;border:1px solid rgba(255,255,255,.03);padding:16px;border-radius:16px;display:flex;flex-direction:column;gap:6px}.score-item .label{font-size:11px;color:var(--text-muted);font-weight:700}.score-item .val{font-size:22px;font-weight:800}.summary-actions{display:flex;gap:14px}