@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;600;800&display=swap";:root{--bg-color:#0f172a;--surface-color:#1e293bb3;--surface-border:#ffffff1a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#38bdf8;--accent-glow:#38bdf880;--gradient-primary:linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);--gradient-surface:linear-gradient(180deg, #1e293bcc 0%, #0f172ae6 100%);--font-primary:"Inter", system-ui, -apple-system, sans-serif;--font-heading:"Outfit", system-ui, -apple-system, sans-serif;--radius-md:12px;--radius-lg:24px;--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.4s cubic-bezier(.16, 1, .3, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-primary);flex-direction:column;min-height:100vh;line-height:1.6;display:flex;position:relative;overflow-x:hidden}body:before{content:"";background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);opacity:.15;z-index:-1;pointer-events:none;width:60vw;height:60vw;position:fixed;top:-20%;left:-10%}body:after{content:"";opacity:.15;z-index:-1;pointer-events:none;background:radial-gradient(circle,#818cf84d 0%,#0000 70%);width:50vw;height:50vw;position:fixed;bottom:-20%;right:-10%}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);margin-bottom:1rem;font-weight:800;line-height:1.2}a{color:var(--accent-color);transition:var(--transition-fast);text-decoration:none}a:hover{text-shadow:0 0 10px var(--accent-glow)}.glass-panel{background:var(--surface-color);-webkit-backdrop-filter:blur(16px);border:1px solid var(--surface-border);border-radius:var(--radius-lg);padding:2rem;box-shadow:0 25px 50px -12px #00000080}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 2rem}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--surface-border);background:#0f172acc;padding:1rem 0;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;display:flex}.brand{font-family:var(--font-heading);background:var(--gradient-primary);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;background-clip:text;font-size:1.5rem;font-weight:800}.btn{background:var(--gradient-primary);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-smooth);border:none;padding:.75rem 1.5rem;font-weight:600;display:inline-block;position:relative;overflow:hidden;color:#fff!important}.btn:after{content:"";opacity:0;width:100%;height:100%;transition:var(--transition-fast);background:#fff;position:absolute;top:0;left:0}.btn:hover{box-shadow:0 10px 20px -5px var(--accent-glow);transform:translateY(-2px)}.btn:hover:after{opacity:.1}.btn:active{transform:translateY(0)}.course-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:2rem;margin-top:3rem;display:grid}.course-card{color:var(--text-primary);background:var(--gradient-surface);border:1px solid var(--surface-border);border-radius:var(--radius-lg);transition:var(--transition-smooth);padding:2rem;display:block;position:relative;overflow:hidden}.course-card:hover{box-shadow:0 20px 40px -10px #00000080, 0 0 20px -5px var(--accent-glow);border-color:#38bdf84d;transform:translateY(-5px)scale(1.02)}.course-card .chapter-number{font-family:var(--font-heading);color:var(--surface-border);transition:var(--transition-smooth);font-size:3rem;font-weight:800;position:absolute;top:1rem;right:1.5rem}.course-card:hover .chapter-number{color:var(--accent-glow);transform:scale(1.1)}.course-card h3{z-index:1;margin-top:1rem;font-size:1.25rem;position:relative}.course-card .status{color:var(--text-secondary);background:#ffffff0d;border-radius:999px;align-items:center;gap:.5rem;margin-top:1.5rem;padding:.25rem .75rem;font-size:.875rem;display:inline-flex}.chapter-header{text-align:center;border-bottom:1px solid var(--surface-border);padding:4rem 0}.chapter-header h1{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;max-width:800px;margin:0 auto;font-size:3.5rem}.chapter-content{max-width:800px;color:var(--text-secondary);margin:3rem auto;font-size:1.125rem}.chapter-content h2{color:var(--text-primary);margin-top:3rem;font-size:2rem}.chapter-content h3{color:var(--text-primary);margin-top:2rem;font-size:1.5rem}.chapter-content p{margin-bottom:1.5rem}.chapter-content ul,.chapter-content ol{margin-bottom:1.5rem;padding-left:2rem}.chapter-content li{margin-bottom:.5rem}.chapter-content strong{color:var(--text-primary)}.audio-player-wrapper{border:1px solid var(--surface-border);border-radius:var(--radius-md);z-index:10;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0f172acc;align-items:center;gap:1rem;margin-bottom:3rem;padding:1rem 1.5rem;display:flex;position:sticky;top:5rem}audio{outline:none;width:100%;height:40px}@keyframes fadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-up{animation:.6s cubic-bezier(.16,1,.3,1) forwards fadeUp}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.progress-container{background:#ffffff0d;border-radius:999px;width:100%;height:8px;margin-top:1rem;overflow:hidden}.progress-bar{background:var(--gradient-primary);width:0%;height:100%;transition:width 1s cubic-bezier(.16,1,.3,1)}