:root{--bg-primary: #0B1628;--bg-secondary: #111F35;--bg-elevated: #16263F;--bg-sidebar: #08111F;--text-primary: #FFFFFF;--text-white: #FFFFFF;--text-muted: #8A9BB0;--text-faint: #5C6E84;--accent-blue: #4F8EF7;--accent-blue-strong: #2E6FE0;--accent-gold: #C9A84C;--success: #2ECC71;--warning: #F39C12;--danger: #E74C3C;--coral: #F07B6B;--teal: #2EB1A8;--border: #1E3A5F;--border-strong: #2A4D7A;--divider: rgba(255, 255, 255, .08);--surface-hover: rgba(255, 255, 255, .04);--code-surface: rgba(255, 255, 255, .06);--overlay-bg: rgba(0, 0, 0, .7);--nav-bg-top: rgba(11, 22, 40, .55);--nav-bg-scrolled: rgba(11, 22, 40, .85);--radius-card: 12px;--radius-btn: 8px;--radius-pill: 999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .25);--shadow-md: 0 8px 24px rgba(0, 0, 0, .35);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .5);--transition: .2s ease;--container: 1200px;--container-wide: 1320px}[data-theme=light]{--bg-primary: #F8FAFB;--bg-secondary: #FFFFFF;--bg-elevated: #FFFFFF;--bg-sidebar: #1A2E4A;--text-primary: #0D1B2E;--text-muted: #4A5568;--text-faint: #718096;--accent-blue: #2563EB;--accent-blue-strong: #1D4ED8;--border: #E2E8F0;--border-strong: #CBD5E0;--divider: rgba(0, 0, 0, .06);--surface-hover: rgba(0, 0, 0, .04);--code-surface: rgba(0, 0, 0, .05);--overlay-bg: rgba(0, 0, 0, .55);--nav-bg-top: rgba(248, 250, 251, .8);--nav-bg-scrolled: rgba(248, 250, 251, .95);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .08);--shadow-md: 0 8px 24px rgba(0, 0, 0, .12);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .2)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg-primary);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}img,svg{display:block;max-width:100%}input,textarea,select{font:inherit;color:inherit}::selection{background:var(--accent-blue);color:#fff}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}.container-wide{width:100%;max-width:var(--container-wide);margin:0 auto;padding:0 24px}.label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-blue);font-weight:600;margin-bottom:16px}.headline-xl{font-size:clamp(40px,6vw,72px);line-height:1.05;font-weight:800;letter-spacing:-.025em}.headline-lg{font-size:clamp(32px,4.5vw,56px);line-height:1.1;font-weight:800;letter-spacing:-.02em}.headline-md{font-size:clamp(28px,3.5vw,44px);line-height:1.15;font-weight:800;letter-spacing:-.015em}.headline-sm{font-size:clamp(22px,2.5vw,32px);line-height:1.2;font-weight:700;letter-spacing:-.01em}.gradient-blue{background:linear-gradient(135deg,#4f8ef7,#7fb3ff,#c9a84c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subtext{color:var(--text-muted);font-size:17px;line-height:1.65;max-width:720px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;letter-spacing:.01em;transition:all var(--transition);border:1px solid transparent;white-space:nowrap;-webkit-user-select:none;user-select:none}.btn:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}.btn-primary{background:var(--accent-blue);color:#fff}.btn-primary:hover{background:var(--accent-blue-strong);transform:translateY(-1px);box-shadow:0 6px 20px #4f8ef759}.btn-coral{background:var(--coral);color:#fff}.btn-coral:hover{background:#d96658;transform:translateY(-1px);box-shadow:0 6px 20px #f07b6b59}.btn-gold{background:var(--accent-gold);color:#1a1208}.btn-gold:hover{background:#d6b558;transform:translateY(-1px);box-shadow:0 6px 20px 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auto}}.quiz-nw-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.quiz-nw-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:8px 8px 14px;background:var(--bg-secondary);border:2px solid var(--border);border-radius:16px;cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;box-shadow:0 1px 4px #0000000d;outline:none;width:100%;text-align:center}.quiz-nw-card:hover{border-color:#2563eb59;box-shadow:0 6px 20px #00000017;transform:translateY(-2px)}.quiz-nw-card--active{border-color:var(--accent-blue);box-shadow:0 4px 20px #2563eb2e;background:#2563eb05}.quiz-nw-card:focus-visible{outline:2px solid var(--accent-blue);outline-offset:2px}.quiz-nw-card:active{transform:translateY(0)}.quiz-nw-img-wrap{position:relative;width:100%;aspect-ratio:1 / 1;border-radius:10px;overflow:hidden}.quiz-nw-img{width:100%;height:100%;object-fit:cover;object-position:center 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560px){.quiz-nw-grid{grid-template-columns:repeat(2,1fr);gap:10px}}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}.flex-wrap{flex-wrap:wrap}.full{width:100%}.hide-mobile{display:initial}.show-mobile{display:none}@media (max-width: 768px){.hide-mobile{display:none}.show-mobile{display:initial}}.score-good{color:var(--success);stroke:var(--success)}.score-mid{color:var(--warning);stroke:var(--warning)}.score-low{color:var(--danger);stroke:var(--danger)}.placeholder-img{background:var(--bg-elevated);border-radius:var(--radius-card);position:relative;overflow:hidden}.placeholder-img:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(110deg,transparent 30%,var(--divider) 50%,transparent 70%);animation:shimmer 3s infinite;background-size:1000px 100%}.amber-card{background:#f39c1214;border:1px solid rgba(243,156,18,.3);border-radius:var(--radius-card);padding:20px;color:#f5c062;font-size:14px;line-height:1.6}