:root{--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace;--bg-dark: #090D16;--bg-card: #111827;--bg-card-hover: #1F2937;--bg-light: #F8FAFC;--surface-glass: rgba(17, 24, 39, .75);--primary: #4F46E5;--primary-hover: #4338CA;--primary-light: rgba(79, 70, 229, .15);--secondary: #06B6D4;--accent-gold: #F59E0B;--accent-green: #10B981;--accent-red: #EF4444;--cd-ielts-blue: #0056B3;--cd-ielts-header: #1E293B;--cd-ielts-highlight: #FEF08A;--text-main: #F3F4F6;--text-muted: #9CA3AF;--text-dark: #1F2937;--border-color: rgba(255, 255, 255, .1);--border-active: rgba(99, 102, 241, .5);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--shadow-glow: 0 0 25px rgba(79, 70, 229, .3);--shadow-card: 0 10px 30px -5px rgba(0, 0, 0, .5)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-body);background-color:var(--bg-dark);color:var(--text-main);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;letter-spacing:-.02em;color:#fff}.glass-panel{background:#111827b3;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.1);box-shadow:0 20px 40px #0006}.glass-card{background:#1e293b80;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-md);transition:all .3s cubic-bezier(.4,0,.2,1)}.glass-card:hover{transform:translateY(-4px);border-color:#6366f166;box-shadow:0 12px 30px #4f46e533}.text-gradient{background:linear-gradient(135deg,#6366f1,#06b6d4,#38bdf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.text-gradient-gold{background:linear-gradient(135deg,#f59e0b,#fbbf24,#fde047);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.8rem 1.6rem;font-family:var(--font-heading);font-weight:600;font-size:.95rem;border-radius:var(--radius-md);cursor:pointer;transition:all .25s ease;border:none;text-decoration:none}.btn-primary{background:linear-gradient(135deg,#4f46e5,#06b6d4);color:#fff;box-shadow:0 4px 15px #4f46e566}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #4f46e599;filter:brightness(1.1)}.btn-cd{background:linear-gradient(135deg,#0056b3,#08f);color:#fff;font-family:var(--font-mono);box-shadow:0 4px 15px #06c6}.btn-cd:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0066ccb3}.btn-outline{background:#ffffff0d;color:#fff;border:1px solid rgba(255,255,255,.15)}.btn-outline:hover{background:#ffffff1f;border-color:#ffffff4d;transform:translateY(-2px)}.btn-secondary{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 4px 15px #10b9814d}.btn-secondary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #10b98180}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes pulseGlow{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}.animate-float{animation:float 4s ease-in-out infinite}.animate-pulse-glow{animation:pulseGlow 3s ease-in-out infinite}.badge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .85rem;border-radius:var(--radius-full);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge-indigo{background:#4f46e533;color:#a5b4fc;border:1px solid rgba(99,102,241,.4)}.badge-gold{background:#f59e0b33;color:#fde047;border:1px solid rgba(245,158,11,.4)}.badge-green{background:#10b98133;color:#6ee7b7;border:1px solid rgba(16,185,129,.4)}.cd-test-header{background-color:#1e293b;color:#fff;border-bottom:2px solid #0056B3;font-family:var(--font-mono)}.cd-passage-box{background-color:#0f172a;color:#e2e8f0;border:1px solid #334155;border-radius:8px;line-height:1.8;font-size:.95rem}.cd-question-card{background-color:#182234;border:1px solid #2D3D54;border-radius:8px;transition:border-color .2s}.cd-question-card.active{border-color:#08f;box-shadow:0 0 12px #0088ff4d}.cd-highlight-yellow{background-color:#fef08a;color:#1e293b;padding:0 4px;border-radius:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0b0f19}::-webkit-scrollbar-thumb{background:#1f2937;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#374151}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 1.5rem}.section-padding{padding:5rem 0}@media (max-width: 768px){.section-padding{padding:3rem 0}}