@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@400;500;600;700;800&display=swap";:root{--primary-50: #f0f9ff;--primary-100: #e0f2fe;--primary-200: #bae6fd;--primary-300: #7dd3fc;--primary-400: #38bdf8;--primary-500: #0ea5e9;--primary-600: #0284c7;--primary-700: #0369a1;--primary-800: #075985;--primary-900: #0c4a6e;--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);--gradient-accent: linear-gradient(135deg, #fa709a 0%, #fee140 100%);--gradient-dark: linear-gradient(135deg, #434343 0%, #000000 100%);--glass-bg: rgba(255, 255, 255, .95);--glass-border: rgba(255, 255, 255, .18);--glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, .15);--accent-purple: #8b5cf6;--accent-pink: #ec4899;--accent-orange: #f97316;--accent-blue: #3b82f6;--accent-cyan: #06b6d4;--white: #ffffff;--gray-50: #fafafa;--gray-100: #f5f5f5;--gray-200: #e5e5e5;--gray-300: #d4d4d4;--gray-400: #a3a3a3;--gray-500: #737373;--gray-600: #525252;--gray-700: #404040;--gray-800: #262626;--gray-900: #171717;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--info: #3b82f6;--shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-sm: 0 2px 4px -1px rgba(0, 0, 0, .06), 0 2px 2px -1px rgba(0, 0, 0, .06);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-2xl: 0 35px 60px -15px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px rgba(139, 92, 246, .3);--radius-xs: .25rem;--radius-sm: .375rem;--radius: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--radius-2xl: 2rem;--radius-3xl: 3rem;--radius-full: 9999px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.6;font-size:16px;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:Poppins,Inter,sans-serif;font-weight:700;line-height:1.2;color:var(--gray-900);margin-bottom:.5rem;letter-spacing:-.025em}h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800}h2{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700}h3{font-size:clamp(1.5rem,3vw,2rem)}h4{font-size:clamp(1.25rem,2.5vw,1.5rem)}h5{font-size:1.25rem}h6{font-size:1.125rem}p{margin-bottom:1rem;color:var(--gray-600);line-height:1.7}.container{max-width:1280px;margin:0 auto;padding:0 2rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.75rem;border-radius:var(--radius-xl);font-weight:600;font-size:.9375rem;border:none;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;white-space:nowrap;font-family:Inter,sans-serif;letter-spacing:.01em}.btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .6s ease}.btn:hover:before{left:100%}.btn-primary{background:var(--gradient-primary);color:var(--white);box-shadow:0 4px 15px #667eea66}.btn-primary:hover{box-shadow:0 6px 25px #667eea80;transform:translateY(-2px) scale(1.02)}.btn-secondary{background:var(--white);color:var(--accent-purple);border:2px solid var(--primary-200);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--primary-50);border-color:var(--accent-purple);box-shadow:var(--shadow-md);transform:translateY(-2px)}.btn-success{background:var(--gradient-success);color:var(--white);box-shadow:0 4px 15px #4facfe66}.btn-success:hover{box-shadow:0 6px 25px #4facfe80;transform:translateY(-2px) scale(1.02)}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:var(--white);box-shadow:0 4px 15px #ef444466}.btn-danger:hover{box-shadow:0 6px 25px #ef444480;transform:translateY(-2px) scale(1.02)}.btn-large{padding:1.125rem 2.5rem;font-size:1.0625rem;border-radius:var(--radius-2xl);font-weight:600}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important}.btn:active{transform:translateY(0) scale(.98)}.card{background:var(--white);border-radius:var(--radius-2xl);padding:2rem;box-shadow:var(--shadow-md);border:1px solid var(--gray-200);transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform .4s ease}.card:hover:before{transform:scaleX(1)}.card:hover{box-shadow:var(--shadow-xl);transform:translateY(-8px);border-color:var(--primary-300)}.card-glass{background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow)}.course-card{background:var(--white);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--gray-200);transition:all .4s cubic-bezier(.4,0,.2,1);cursor:pointer;height:100%;display:flex;flex-direction:column}.course-card:hover{box-shadow:var(--shadow-2xl);transform:translateY(-12px) scale(1.02);border-color:var(--primary-400)}.course-card-header{height:220px;background:var(--gradient-primary);position:relative;display:flex;align-items:center;justify-content:center;padding:2rem;overflow:hidden}.course-card-header:before{content:"";position:absolute;width:300%;height:300%;background:radial-gradient(circle,rgba(255,255,255,.15) 0%,transparent 70%);animation:rotate 20s linear infinite}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.course-card-title{font-size:1.5rem;font-weight:700;color:var(--white);text-align:center;line-height:1.3;position:relative;z-index:1;text-shadow:0 2px 10px rgba(0,0,0,.1)}.course-card-body{padding:1.75rem;flex:1;display:flex;flex-direction:column}.course-card-description{color:var(--gray-600);font-size:.9375rem;line-height:1.6;margin-bottom:1.25rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}.course-card-meta{display:flex;align-items:center;gap:1.25rem;font-size:.875rem;color:var(--gray-500);padding-top:1.25rem;border-top:1px solid var(--gray-200);margin-top:auto}.input-group{margin-bottom:1.5rem}.input-label{display:block;font-weight:600;font-size:.9375rem;color:var(--gray-700);margin-bottom:.625rem;font-family:Inter,sans-serif}.input{width:100%;padding:1rem 1.25rem;border:2px solid var(--gray-300);border-radius:var(--radius-xl);font-size:1rem;transition:all .3s ease;background:var(--white);color:var(--gray-900);font-family:Inter,sans-serif}.input:focus{outline:none;border-color:var(--accent-purple);box-shadow:0 0 0 4px #8b5cf61a;background:var(--white)}.input::placeholder{color:var(--gray-400)}.input-error{border-color:var(--error)}.input-error:focus{box-shadow:0 0 0 4px #ef44441a}.hero{background:var(--gradient-primary);color:var(--white);padding:8rem 0 6rem;text-align:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:200%;height:200%;top:-50%;left:-50%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);animation:float 15s ease-in-out infinite}@keyframes float{0%,to{transform:translate(0) rotate(0)}33%{transform:translate(30px,-50px) rotate(120deg)}66%{transform:translate(-20px,20px) rotate(240deg)}}.hero h1{color:var(--white);font-size:clamp(2.5rem,6vw,4rem);margin-bottom:1.5rem;font-weight:800;position:relative;z-index:1;text-shadow:0 4px 20px rgba(0,0,0,.15);line-height:1.1}.hero p{color:#fffffff2;font-size:clamp(1rem,2vw,1.25rem);max-width:700px;margin:0 auto 3rem;position:relative;z-index:1;line-height:1.6}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:2rem;margin-bottom:3rem}.stat-card{background:var(--white);padding:2.5rem;border-radius:var(--radius-2xl);box-shadow:var(--shadow-lg);border:1px solid var(--gray-200);text-align:center;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--gradient-primary)}.stat-card:hover{transform:translateY(-12px) scale(1.05);box-shadow:var(--shadow-2xl)}.stat-card-value{font-size:3.5rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.75rem;line-height:1}.stat-card-label{color:var(--gray-600);font-size:1.0625rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge{display:inline-flex;align-items:center;padding:.5rem 1.125rem;border-radius:var(--radius-full);font-size:.8125rem;font-weight:600;text-transform:uppercase;letter-spacing:.025em;transition:all .3s ease}.badge-primary{background:linear-gradient(135deg,#667eea26,#667eea40);color:var(--accent-purple);border:1px solid rgba(102,126,234,.3)}.badge-success{background:linear-gradient(135deg,#10b98126,#10b98140);color:var(--success);border:1px solid rgba(16,185,129,.3)}.badge-warning{background:linear-gradient(135deg,#f59e0b26,#f59e0b40);color:var(--warning);border:1px solid rgba(245,158,11,.3)}.badge-info{background:linear-gradient(135deg,#3b82f626,#3b82f640);color:var(--info);border:1px solid rgba(59,130,246,.3)}.badge-student{background:linear-gradient(135deg,#10b98126,#10b98140);color:#059669;border:1px solid rgba(16,185,129,.3)}.badge-instructor{background:linear-gradient(135deg,#3b82f626,#3b82f640);color:#2563eb;border:1px solid rgba(59,130,246,.3)}.badge-admin{background:linear-gradient(135deg,#8b5cf626,#8b5cf640);color:#7c3aed;border:1px solid rgba(139,92,246,.3)}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2.5rem}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2.5rem}.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2.5rem}.alert{padding:1.25rem 1.75rem;border-radius:var(--radius-xl);margin-bottom:1.5rem;border-left:4px solid;animation:slideIn .3s ease;box-shadow:var(--shadow-md)}.alert-info{background:#3b82f61a;border-color:var(--info);color:#1e40af}.alert-success{background:#10b9811a;border-color:var(--success);color:#065f46}.alert-error{background:#ef44441a;border-color:var(--error);color:#991b1b}.alert-warning{background:#f59e0b1a;border-color:var(--warning);color:#92400e}.spinner{display:inline-block;width:48px;height:48px;border:4px solid var(--gray-200);border-top-color:var(--accent-purple);border-radius:50%;animation:spin .8s linear infinite}.spinner-lg{width:64px;height:64px;border-width:5px}@keyframes spin{to{transform:rotate(360deg)}}.progress-bar{width:100%;height:10px;background:var(--gray-200);border-radius:var(--radius-full);overflow:hidden;box-shadow:inset 0 2px 4px #0000000f}.progress-bar-fill{height:100%;background:var(--gradient-primary);border-radius:var(--radius-full);transition:width .4s ease;position:relative;overflow:hidden}.progress-bar-fill:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 2s infinite}@keyframes shimmer{to{left:100%}}.gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.divider{height:1px;background:linear-gradient(90deg,transparent,var(--gray-300),transparent);margin:3rem 0}.nav-link{color:var(--gray-700);font-weight:600;font-size:.9375rem;padding:.625rem 1.25rem;border-radius:var(--radius-lg);transition:all .3s ease;font-family:Inter,sans-serif}.nav-link:hover{color:var(--accent-purple);background:#8b5cf61a}.search-container{max-width:600px;margin:0 auto 3rem}.search-input{width:100%;padding:1.125rem 1.25rem 1.125rem 3.5rem;border:2px solid var(--gray-300);border-radius:var(--radius-2xl);font-size:1rem;background:var(--white);transition:all .3s ease;box-shadow:var(--shadow-sm)}.search-input:focus{border-color:var(--accent-purple);box-shadow:0 0 0 4px #8b5cf61a,var(--shadow-md);outline:none}section{padding:6rem 0}.section-header{text-align:center;margin-bottom:5rem}.section-title{font-size:clamp(2rem,4vw,3rem);color:var(--gray-900);margin-bottom:1.25rem;font-weight:800}.section-subtitle{font-size:clamp(1rem,2vw,1.25rem);color:var(--gray-600);max-width:700px;margin:0 auto;line-height:1.6}@keyframes fadeIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes scaleIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.animate-fadeIn{animation:fadeIn .6s ease-out}.animate-slideIn{animation:slideIn .4s ease-out}.animate-scaleIn{animation:scaleIn .4s ease-out}.text-center{text-align:center}.text-right{text-align:right}.text-left{text-align:left}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:var(--space-4)}.gap-4{gap:var(--space-8)}.w-full{width:100%}.h-full{height:100%}@media (max-width: 1024px){.container{padding:0 1.5rem}.hero{padding:6rem 0 4rem}section{padding:4rem 0}}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}.hero h1{font-size:2.5rem}.hero p{font-size:1rem}.container{padding:0 1rem}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr;gap:1.5rem}.section-title{font-size:2rem}.btn{padding:.875rem 1.5rem}.btn-large{padding:1rem 2rem}.card{padding:1.5rem}}@media (max-width: 480px){.hero{padding:4rem 0 3rem}.hero h1{font-size:2rem}section{padding:3rem 0}}