@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;600;700;800;900&display=swap");*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0a0a0f;--surface:#12121a;--surface2:#1a1a26;--surface3:#22223a;--border:hsla(0,0%,100%,.08);--text:#f0f0ff;--text2:#a0a0c0;--text3:#6b6b9a;--purple:#7c3aed;--purple-light:#a855f7;--pink:#ec4899;--cyan:#06b6d4;--gold:#f59e0b;--green:#22c55e;--red:#ef4444;--gradient:linear-gradient(135deg,#7c3aed,#ec4899 50%,#06b6d4);--gradient2:linear-gradient(135deg,#1a1a26,#12121a);--shadow:0 4px 24px rgba(124,58,237,.15);--shadow-lg:0 8px 48px rgba(124,58,237,.25);--radius:16px;--radius-sm:10px}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Inter,sans-serif;font-size:16px;line-height:1.6;min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;border-radius:var(--radius-sm)}.network-bar{background:linear-gradient(90deg,#7c3aed,#ec4899);padding:8px 20px;display:flex;justify-content:center;gap:8px;flex-wrap:wrap;align-items:center;font-size:13px;font-weight:700;color:#fff}.network-bar a{background:hsla(0,0%,100%,.15);color:#fff;padding:3px 12px;border-radius:20px;font-size:12px;transition:background .2s}.network-bar a:hover{background:hsla(0,0%,100%,.3)}.header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(10,10,15,.92);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;gap:24px;height:64px}.header-inner,.logo{display:flex;align-items:center}.logo{gap:10px;font-family:Outfit,sans-serif}.logo-icon{font-size:28px}.logo-text{font-size:22px;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}.header-nav a{padding:6px 14px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text2);transition:all .2s}.header-nav a:hover{background:var(--surface2);color:var(--text)}.btn-admin{padding:8px 16px;border-radius:8px;background:var(--surface2);color:var(--purple-light);font-size:13px;font-weight:600;transition:all .2s;border:1px solid var(--border)}.btn-admin:hover{background:var(--purple);color:#fff}.hero{padding:80px 24px 60px;text-align:center;background:radial-gradient(ellipse at 50% 0,rgba(124,58,237,.15) 0,transparent 70%)}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:rgba(124,58,237,.15);border:1px solid rgba(124,58,237,.3);border-radius:999px;font-size:13px;color:var(--purple-light);margin-bottom:24px}.hero h1{font-family:Outfit,sans-serif;font-size:clamp(2rem,5vw,4rem);font-weight:900;line-height:1.1;margin-bottom:16px}.hero h1 span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:1.1rem;color:var(--text2);max-width:600px;margin:0 auto 32px}.hero-stats{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}.hero-stat{text-align:center}.hero-stat-num{font-size:2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-stat-label{font-size:12px;color:var(--text3);margin-top:2px}.container{padding:0 24px}.container,.section{max-width:1280px;margin:0 auto}.section{padding:60px 24px}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;flex-wrap:wrap;gap:12px}.section-title{font-family:Outfit,sans-serif;font-size:1.75rem;font-weight:800}.section-title span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.see-all{color:var(--purple-light);font-size:14px;font-weight:600;transition:color .2s}.see-all:hover{color:var(--pink)}.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));grid-gap:16px;gap:16px}.category-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 16px;text-align:center;cursor:pointer;transition:all .3s;display:block}.category-card:hover{border-color:var(--purple);transform:translateY(-4px);box-shadow:var(--shadow)}.category-card .cat-icon{font-size:2.5rem;margin-bottom:8px}.category-card .cat-label{font-weight:700;font-size:14px;color:var(--text)}.category-card .cat-count{font-size:12px;color:var(--text3);margin-top:4px}.quiz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:24px;gap:24px}.quiz-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:all .3s;display:block;color:inherit}.quiz-card:hover{border-color:var(--purple);transform:translateY(-4px);box-shadow:var(--shadow-lg)}.quiz-card-image{height:180px;position:relative;overflow:hidden;background:linear-gradient(135deg,#1a1a26,#12121a)}.quiz-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.quiz-card:hover .quiz-card-image img{transform:scale(1.05)}.quiz-card-image-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:4rem}.quiz-card-badges{position:absolute;bottom:10px;left:10px;display:flex;gap:6px}.badge-cat{color:#fff;font-weight:600}.badge-cat,.badge-diff{background:rgba(0,0,0,.7);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:3px 10px;border-radius:999px;font-size:11px}.badge-diff{font-weight:700}.badge-q{background:rgba(124,58,237,.8);color:#fff;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:600;position:absolute;top:10px;right:10px}.quiz-card-body{padding:16px}.quiz-card-title{font-family:Outfit,sans-serif;font-size:1rem;font-weight:700;line-height:1.4;margin-bottom:8px;color:var(--text)}.quiz-card-desc{font-size:13px;color:var(--text2);line-height:1.5;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.quiz-card-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text3)}.quiz-card-cta{display:block;text-align:center;padding:10px;margin:12px 16px 16px;background:var(--gradient);color:#fff;border-radius:8px;font-weight:700;font-size:14px;transition:opacity .2s}.quiz-card-cta:hover{opacity:.9}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:all .2s}.btn-primary{background:var(--gradient);color:#fff;box-shadow:var(--shadow)}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-ghost{background:var(--surface2);color:var(--text2);border:1px solid var(--border)}.btn-ghost:hover{border-color:var(--purple);color:var(--purple-light)}.quiz-hero{padding:60px 24px 40px;max-width:860px;margin:0 auto}.quiz-meta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:20px}.quiz-title{font-family:Outfit,sans-serif;font-size:clamp(1.6rem,3vw,2.5rem);font-weight:900;margin-bottom:12px}.quiz-desc{color:var(--text2);font-size:1rem;margin-bottom:24px}.quiz-info-row{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:32px}.quiz-info-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text2)}.quiz-player{max-width:760px;margin:0 auto;padding:0 24px 80px}.quiz-progress{margin-bottom:24px}.quiz-progress-bar{height:6px;background:var(--surface2);border-radius:999px;overflow:hidden;margin-bottom:8px}.quiz-progress-fill{height:100%;background:var(--gradient);border-radius:999px;transition:width .4s ease}.quiz-progress-text{display:flex;justify-content:space-between;font-size:13px;color:var(--text3)}.quiz-timer{display:flex;justify-content:flex-end;margin-bottom:12px}.timer-badge{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:6px 14px;font-size:14px;font-weight:700;color:var(--gold)}.timer-badge.urgent{color:var(--red);border-color:var(--red);animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.question-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;margin-bottom:24px}.question-num{font-size:12px;color:var(--purple-light);font-weight:600;margin-bottom:12px}.question-text{font-family:Outfit,sans-serif;font-size:1.3rem;font-weight:700;line-height:1.4;margin-bottom:28px}.options-grid{display:grid;grid-gap:12px;gap:12px}.option-btn{background:var(--surface2);border:2px solid var(--border);border-radius:12px;padding:16px 20px;text-align:left;cursor:pointer;font-size:15px;color:var(--text);transition:all .2s;display:flex;align-items:center;gap:12px}.option-btn:hover:not(:disabled){border-color:var(--purple);background:rgba(124,58,237,.1);transform:translateX(4px)}.option-btn.correct{border-color:var(--green);background:rgba(34,197,94,.1);color:var(--green)}.option-btn.wrong{border-color:var(--red);background:rgba(239,68,68,.1);color:var(--red)}.option-btn:disabled{cursor:default}.option-letter{width:32px;height:32px;border-radius:8px;background:var(--surface3);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0}.explanation-box{background:rgba(124,58,237,.08);border:1px solid rgba(124,58,237,.2);border-radius:12px;padding:16px;margin-top:16px;font-size:14px;color:var(--text2)}.explanation-box strong{color:var(--purple-light)}.next-btn{width:100%;padding:16px;border-radius:12px;background:var(--gradient);color:#fff;font-size:16px;font-weight:700;cursor:pointer;border:none;transition:opacity .2s;margin-top:8px}.next-btn:hover{opacity:.9}.results-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:48px 32px;text-align:center}.results-score{font-size:5rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:16px 0}.results-label{font-size:1.2rem;color:var(--text2);margin-bottom:32px}.results-breakdown{display:flex;justify-content:center;gap:32px;margin-bottom:32px;flex-wrap:wrap}.result-stat{text-align:center}.result-stat-num{font-size:2rem;font-weight:800}.result-stat-label{font-size:13px;color:var(--text3)}.results-actions{justify-content:center}.filter-bar,.results-actions{display:flex;gap:12px;flex-wrap:wrap}.filter-bar{margin-bottom:32px}.filter-select{background:var(--surface);border:1px solid var(--border);color:var(--text2);padding:10px 14px;border-radius:8px;font-size:14px;cursor:pointer}.filter-select:focus{outline:none;border-color:var(--purple)}.search-input{flex:1 1;min-width:200px;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:10px 16px;border-radius:8px;font-size:14px}.search-input:focus{outline:none;border-color:var(--purple)}.search-input::placeholder{color:var(--text3)}.footer{background:var(--surface);border-top:1px solid var(--border);margin-top:80px}.footer-inner{max-width:1280px;margin:0 auto;padding:60px 24px 40px;display:grid;grid-template-columns:1fr 2fr;grid-gap:48px;gap:48px}.footer-brand p{color:var(--text3);font-size:14px;margin-top:12px;max-width:260px;line-height:1.6}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:32px;gap:32px}.footer-links h4{font-weight:700;margin-bottom:12px;color:var(--text);font-size:14px}.footer-links a{display:block;color:var(--text3);font-size:13px;margin-bottom:8px;transition:color .2s;text-transform:capitalize}.footer-links a:hover{color:var(--purple-light)}.footer-bottom{text-align:center;padding:20px 24px;border-top:1px solid var(--border);font-size:13px;color:var(--text3)}.footer-bottom a{color:var(--purple-light)}.admin-page{max-width:1200px;margin:0 auto;padding:40px 24px}.admin-login{max-width:400px;margin:100px auto;background:var(--surface);border-radius:var(--radius);padding:40px;border:1px solid var(--border);text-align:center}.admin-login h1{font-family:Outfit,sans-serif;font-size:1.8rem;margin-bottom:8px}.admin-login p{color:var(--text3);margin-bottom:24px;font-size:14px}.admin-input{width:100%;background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:12px 16px;border-radius:8px;font-size:15px;margin-bottom:12px}.admin-input:focus{outline:none;border-color:var(--purple)}.admin-btn{width:100%;padding:12px;border-radius:8px;background:var(--gradient);color:#fff;font-weight:700;font-size:15px;cursor:pointer;border:none}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:16px;gap:16px;margin-bottom:32px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.stat-num{font-size:2.5rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.stat-label{font-size:13px;color:var(--text3);margin-top:4px}.admin-tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}.admin-tab{padding:8px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text2);transition:all .2s}.admin-tab.active{background:var(--gradient);color:#fff;border-color:transparent}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th{background:var(--surface2);text-align:left;color:var(--text3);font-weight:600}.admin-table td,.admin-table th{padding:12px 16px;border-bottom:1px solid var(--border)}.admin-table td{color:var(--text2)}.admin-table tr:hover td{background:var(--surface2)}.gen-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:24px}.gen-panel h3{font-size:1.1rem;font-weight:700;margin-bottom:16px}.gen-row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}.gen-select{background:var(--surface2);border:1px solid var(--border);color:var(--text);padding:10px 14px}.gen-btn,.gen-select{border-radius:8px;font-size:14px}.gen-btn{padding:10px 24px;background:var(--gradient);color:#fff;font-weight:700;cursor:pointer;border:none;white-space:nowrap}.status-dot{width:8px;height:8px;border-radius:999px;display:inline-block;margin-right:6px}.status-ok{background:var(--green)}.status-err{background:var(--red)}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:11px;font-weight:700}.badge-easy{background:rgba(34,197,94,.15);color:var(--green)}.badge-medium{background:rgba(245,158,11,.15);color:var(--gold)}.badge-hard{background:rgba(239,68,68,.15);color:var(--red)}.action-btn{padding:5px 12px;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--surface2);color:var(--text2);margin-right:6px;transition:all .2s}.action-btn:hover{border-color:var(--purple);color:var(--purple-light)}.action-btn.del:hover{border-color:var(--red);color:var(--red)}.alert{padding:12px 16px;border-radius:8px;font-size:14px;margin-bottom:16px}.alert-success{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);color:var(--green)}.alert-error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:var(--red)}.spinning{animation:spin 1s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){.header-nav{display:none}.footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.quiz-grid{grid-template-columns:1fr}.category-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}.hero h1{font-size:2rem}}