:root{--bg: #667eea;--panel: #ffffff;--panel-2: #f3f4f6;--text: #000000;--muted: #666666;--accent: #f093fb;--good: #4caf50;--bad: #f44336;--focus: #ff9800;--safe-area-inset-top: env(safe-area-inset-top);--safe-area-inset-bottom: env(safe-area-inset-bottom)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:linear-gradient(135deg,#667eea,#764ba2,#f093fb,#4facfe,#00f2fe);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;overflow-x:hidden}.app{min-height:100vh;display:flex;flex-direction:column;padding:calc(var(--safe-area-inset-top) + 20px) 12px calc(var(--safe-area-inset-bottom) + 20px) 12px;max-width:900px;margin:0 auto}.app>header{text-align:center;margin-bottom:32px;flex-shrink:0}.app>header h1{font-size:32px;font-weight:700;margin:0 0 8px;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.2)}.home-btn,.modul-btn{padding:8px 16px;background:linear-gradient(135deg,#c66fc4,#ff6b9d);color:#fff;border:none;border-radius:12px;font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap}.subtitle{font-size:16px;color:#ffffffe6;font-weight:400}.courses-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:20px}.course-card{background:var(--panel);border-radius:18px;box-shadow:0 10px 30px #00000026;padding:24px;transition:transform .2s ease,box-shadow .2s ease;cursor:pointer}.course-card:hover{transform:translateY(-4px);box-shadow:0 15px 40px #0003}.course-card:active{transform:scale(.98)}.course-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.course-icon{width:48px;height:48px;background:linear-gradient(135deg,#f093fb,#764ba2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}.course-title{font-size:20px;font-weight:600;margin:0 0 4px}.course-subtitle{font-size:14px;color:var(--muted)}.modules-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.module-btn{background:linear-gradient(135deg,#c66fc4,#ff6b9d);color:#fff;border:none;padding:8px 16px;border-radius:10px;font-size:14px;font-weight:500;text-decoration:none;display:inline-block;transition:transform .1s ease,opacity .2s ease}.module-btn:hover{transform:scale(1.05);opacity:.9;text-decoration:none;color:#fff}.module-btn:active{transform:scale(.98)}.module-btn.coming-soon{opacity:.5;pointer-events:none;background:var(--panel-2);color:var(--muted)}.stats{background:var(--panel-2);border-radius:10px;padding:12px;margin-top:16px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}.progress-mini{flex:1;height:4px;background:#ddd;border-radius:99px;overflow:hidden}.progress-mini>div{height:100%;background:linear-gradient(90deg,var(--accent),#a78bfa);transition:width .3s ease}.app>footer{text-align:center;margin-top:32px;color:#fffc;font-size:14px}.wrap{max-width:920px;margin:24px auto;padding:0 16px;min-height:100vh}.module-header{margin-bottom:16px}.module-header h1{color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.2)}.mut{color:#fffc;font-size:14px}.card{background:var(--panel);border:1px solid #eee;border-radius:18px;box-shadow:0 10px 30px #00000026;padding:16px;margin-top:12px}.card>header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:16px}.progress{flex:1;max-width:200px}.bar{height:6px;background:var(--panel-2);border-radius:99px;overflow:hidden}.bar>div{height:100%;background:linear-gradient(90deg,var(--accent),#a78bfa);transition:width .25s ease}.question{font-size:18px;font-weight:600;margin:16px 0;line-height:1.3}.options{list-style:none;padding:0;margin:16px 0;display:grid;gap:8px}.option{position:relative;background:var(--panel-2);border:1px solid #ddd;border-radius:12px;padding:12px 12px 12px 40px;cursor:pointer;transition:transform .06s ease;-webkit-user-select:none;user-select:none;font-size:15px;line-height:1.4;min-height:48px;display:flex;align-items:center}.option:active{transform:scale(.98);background:#e5e7eb}.option.selected{outline:2px solid var(--focus);outline-offset:-2px}.option:before{content:"";position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;border-radius:6px;background:#fff;border:1px solid #ccc}.option.correct{border-color:#4caf50b3;background:linear-gradient(180deg,rgba(76,175,80,.1),transparent 70%),var(--panel-2)}.option.correct:before{background:var(--good)}.option.incorrect{border-color:#f44336b3;background:linear-gradient(180deg,rgba(244,67,54,.1),transparent 70%),var(--panel-2)}.option.incorrect:before{background:var(--bad)}.status{margin:16px 0 8px;font-weight:600;font-size:15px}.status.good{color:var(--good)}.status.bad{color:var(--bad)}.explain{margin-top:12px;border-left:4px solid #4caf50;padding:16px 20px;background:#f8fffe;border-radius:12px;white-space:pre-wrap;font-size:15px;line-height:1.6;color:#2d3748;box-shadow:0 2px 8px #00000014}.card>footer{display:flex;justify-content:space-between;margin-top:16px;gap:12px}button{background:var(--accent);border:none;color:#fff;padding:10px 16px;border-radius:10px;cursor:pointer;font-weight:600;font-size:15px;transition:opacity .2s ease}button:hover{opacity:.9}button:active{transform:scale(.98)}textarea{width:100%;min-height:320px;background:#f8f9fa;border:1px solid #ddd;color:var(--text);padding:16px;border-radius:12px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;resize:vertical}.flex{display:flex}.between{justify-content:space-between}.small{font-size:12px}.hidden{display:none}input,select,textarea,button{font-size:16px!important;-webkit-text-size-adjust:100%}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.course-card{animation:fadeIn .4s ease backwards}.course-card:nth-child(1){animation-delay:.1s}.course-card:nth-child(2){animation-delay:.2s}.course-card:nth-child(3){animation-delay:.3s}.course-card:nth-child(4){animation-delay:.4s}.module-header .row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px}.module-header .row h1{margin:0;text-align:center}