.common-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);line-height:1;color:var(--color-text-inverse);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;box-shadow:0 2px 8px #6c3ce140;text-decoration:none}.common-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #6c3ce159}.common-btn:active:not(:disabled){transform:translateY(0)}.common-btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}.hero{position:relative;padding:var(--space-20) 0;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;background:radial-gradient(circle at 50% 50%,var(--color-primary-ghost) 0%,transparent 70%)}.hero-content{max-width:800px;padding:0 var(--space-6);z-index:1;animation:fadeInUp var(--transition-slow) ease-out}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);margin-bottom:var(--space-6);box-shadow:var(--shadow-sm)}.hero h1{font-size:var(--font-size-5xl);font-weight:800;color:var(--color-text);line-height:1.1;margin-bottom:var(--space-6);letter-spacing:-.02em}.hero-highlight{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;position:relative;display:inline-block}.typewriter-text:after{content:"|";display:inline-block;color:var(--color-text);-webkit-text-fill-color:var(--color-text);margin-left:2px;animation:blink 1s step-end infinite;font-weight:400}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.hero-description{font-size:var(--font-size-lg);color:var(--color-text-secondary);margin-bottom:var(--space-10);max-width:600px;margin-left:auto;margin-right:auto;line-height:1.6}.hero-actions{display:flex;align-items:center;justify-content:center;gap:var(--space-4)}.stats-section{padding:var(--space-12) 0;background:var(--color-surface);border-top:1px solid var(--color-border-light);border-bottom:1px solid var(--color-border-light)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-8);text-align:center}.stat-item{position:relative}.stat-item:not(:last-child):after{content:"";position:absolute;right:calc(var(--space-8) * -.5);top:10%;height:80%;width:1px;background:var(--color-border-light)}.stat-value{font-size:var(--font-size-3xl);font-weight:800;color:var(--color-text);margin-bottom:var(--space-1);background:linear-gradient(135deg,var(--color-text),var(--color-text-secondary));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:var(--font-weight-medium);letter-spacing:.05em;text-transform:uppercase}.features-header{text-align:center;max-width:700px;margin:0 auto var(--space-16)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--space-8)}.feature-card{background:var(--color-surface);padding:var(--space-8);border-radius:var(--radius-xl);border:1px solid var(--color-border-light);transition:all var(--transition-base);position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light));opacity:0;transition:opacity var(--transition-base)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-border)}.feature-card:hover:before{opacity:1}.feature-icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-2xl);margin-bottom:var(--space-6);transition:transform var(--transition-spring)}.feature-card:hover .feature-icon{transform:scale(1.1) rotate(5deg)}.feature-card h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-3)}.feature-card p{color:var(--color-text-secondary);line-height:1.6;font-size:var(--font-size-sm)}@media (max-width: 768px){.hero h1{font-size:var(--font-size-3xl)}.stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-8) var(--space-4)}.stat-item:after{display:none}.hero-actions{flex-direction:column;width:100%}.hero-actions .btn{width:100%}}.testimonials-header{text-align:center;margin-bottom:var(--space-12)}.testimonials-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-6)}.testimonial-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-8);transition:all var(--transition-base);display:flex;flex-direction:column;justify-content:space-between}.testimonial-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.testimonial-quote{position:relative;margin-bottom:var(--space-6)}.testimonial-quote svg{position:absolute;top:-4px;left:0;color:var(--color-primary)}.testimonial-quote p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);padding-top:var(--space-6);font-style:italic}.testimonial-author{display:flex;align-items:center;gap:var(--space-3)}.testimonial-avatar{width:44px;height:44px;border-radius:var(--radius-full);object-fit:cover;border:2px solid var(--color-border-light)}.testimonial-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text)}.testimonial-position{font-size:var(--font-size-xs);color:var(--color-text-muted)}@media (max-width: 768px){.testimonials-grid{grid-template-columns:1fr}.testimonial-card{padding:var(--space-6)}}.main-header{position:sticky;top:0;z-index:var(--z-sticky);background:var(--color-bg-alt);border-bottom:1px solid var(--color-border-light);transition:all var(--transition-base)}.header-scrolled{background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow-sm)}[data-theme=dark] .header-scrolled{background:#161821d9}.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-6);height:var(--header-height);display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:var(--space-2);text-decoration:none;font-weight:var(--font-weight-bold);font-size:var(--font-size-xl);color:var(--color-text);transition:color var(--transition-fast)}.logo:hover{color:var(--color-primary)}.logo-img{height:40px;width:auto;object-fit:contain;display:block}.nav-links{display:flex;align-items:center;gap:var(--space-1)}.nav-links a{padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);text-decoration:none;border-radius:var(--radius-md);transition:all var(--transition-fast)}.nav-links a:hover{color:var(--color-primary);background:var(--color-primary-ghost)}.nav-login-btn{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light))!important;color:var(--color-text-inverse)!important;padding:var(--space-2) var(--space-5)!important;border-radius:var(--radius-full)!important;font-weight:var(--font-weight-semibold)!important;box-shadow:0 2px 8px #6c3ce140}.nav-login-btn:hover{transform:translateY(-1px);box-shadow:0 4px 16px #6c3ce159;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light))!important;color:var(--color-text-inverse)!important}.header-actions{display:flex;align-items:center;gap:var(--space-2)}.theme-toggle{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border:none;background:var(--color-surface-hover);color:var(--color-text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.theme-toggle:hover{background:var(--color-primary-ghost);color:var(--color-primary)}.hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;width:38px;height:38px;border:none;background:transparent;cursor:pointer;padding:0;gap:5px}.hamburger span{display:block;width:20px;height:2px;background:var(--color-text);border-radius:2px;transition:all var(--transition-fast)}.hamburger-active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger-active span:nth-child(2){opacity:0}.hamburger-active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.nav-overlay{display:none}@media (max-width: 768px){.header-inner{padding:0 var(--space-4)}.hamburger{display:flex}.nav-links{position:fixed;top:var(--header-height);right:0;bottom:0;width:280px;flex-direction:column;align-items:stretch;gap:var(--space-1);padding:var(--space-4);background:var(--color-bg-alt);border-left:1px solid var(--color-border-light);box-shadow:var(--shadow-xl);transform:translate(100%);transition:transform var(--transition-base);z-index:var(--z-dropdown);overflow-y:auto}.nav-links.nav-open{transform:translate(0)}.nav-links a{padding:var(--space-3) var(--space-4);font-size:var(--font-size-base);border-radius:var(--radius-md)}.nav-login-btn{text-align:center;margin-top:var(--space-2)}.nav-overlay{display:block;position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:#0006;z-index:calc(var(--z-dropdown) - 1);animation:fadeIn var(--transition-fast) ease-out}}.auth-page{display:flex;min-height:calc(100vh - var(--header-height));background:var(--color-bg)}.auth-illustration{flex:1;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary) 0%,#4F46E5 50%,#7C3AED 100%);padding:var(--space-10);position:relative;overflow:hidden}.auth-illustration:before{content:"";position:absolute;width:400px;height:400px;border-radius:50%;background:#ffffff0f;top:-100px;right:-100px}.auth-illustration:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:#ffffff0a;bottom:-80px;left:-80px}.auth-illustration-content{position:relative;z-index:1;text-align:center;color:#fff}.auth-illustration-content .brand-symbol{font-size:4rem;font-weight:var(--font-weight-bold);margin-bottom:var(--space-4);opacity:.95}.auth-illustration-content h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-3)}.auth-illustration-content p{font-size:var(--font-size-base);opacity:.8;max-width:320px;line-height:var(--line-height-relaxed)}.auth-form-container{flex:1;display:flex;align-items:center;justify-content:center;padding:var(--space-8)}.auth-form{width:100%;max-width:400px;animation:fadeInUp var(--transition-slow) ease-out}.auth-form h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-2)}.auth-form .auth-subtitle{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-8)}.auth-form form{display:flex;flex-direction:column}.auth-form .form-group{margin-bottom:var(--space-5)}.auth-form label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);margin-bottom:var(--space-2)}.auth-form input[type=email],.auth-form input[type=password],.auth-form input[type=text],.auth-form input[type=number]{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-family);font-size:var(--font-size-sm);color:var(--color-text);background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast);outline:none}.auth-form input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-ghost)}.auth-form input::placeholder{color:var(--color-text-muted)}.auth-form .common-btn{width:100%;padding:var(--space-3) var(--space-6);font-size:var(--font-size-sm);margin-top:var(--space-2)}.auth-footer{text-align:center;margin-top:var(--space-6);font-size:var(--font-size-sm);color:var(--color-text-muted)}.auth-footer a{color:var(--color-primary);font-weight:var(--font-weight-semibold);text-decoration:none;transition:color var(--transition-fast)}.auth-footer a:hover{color:var(--color-primary-light)}.auth-divider{display:flex;align-items:center;gap:var(--space-4);margin:var(--space-6) 0;color:var(--color-text-muted);font-size:var(--font-size-xs)}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.captcha-wrapper{margin:var(--space-4) 0;display:flex;justify-content:center}.forgot-link{display:inline-block;font-size:var(--font-size-xs);color:var(--color-primary);text-decoration:none;margin-top:calc(-1 * var(--space-2));margin-bottom:var(--space-2);align-self:flex-end;font-weight:var(--font-weight-medium)}.forgot-link:hover{color:var(--color-primary-light)}@media (max-width: 768px){.auth-illustration{display:none}.auth-form-container{padding:var(--space-6) var(--space-4)}.auth-form{max-width:100%}}.main-footer{background:var(--color-bg-elevated);border-top:1px solid var(--color-border-light);margin-top:auto}.footer-inner{max-width:var(--max-width);margin:0 auto;padding:var(--space-16) var(--space-6) var(--space-8)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--space-12);margin-bottom:var(--space-12)}.footer-logo{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text);text-decoration:none;margin-bottom:var(--space-4)}.footer-logo:hover{color:var(--color-primary)}.footer-logo-symbol{font-size:var(--font-size-2xl);color:var(--color-primary)}.footer-tagline{font-size:var(--font-size-sm);color:var(--color-text-muted);line-height:var(--line-height-relaxed);max-width:320px}.footer-col h4{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-4)}.footer-col ul{list-style:none}.footer-col li{margin-bottom:var(--space-3)}.footer-col a{font-size:var(--font-size-sm);color:var(--color-text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-col a:hover{color:var(--color-primary)}.footer-social{display:flex;gap:var(--space-3)}.footer-social a{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);background:var(--color-surface-hover);color:var(--color-text-secondary);font-size:var(--font-size-xl);transition:all var(--transition-fast)}.footer-social a:hover{background:var(--color-primary-ghost);color:var(--color-primary);transform:translateY(-2px)}.footer-bottom{padding-top:var(--space-8);border-top:1px solid var(--color-border-light)}.footer-bottom p{font-size:var(--font-size-sm);color:var(--color-text-muted);text-align:center}.footer-bottom a{color:var(--color-primary);font-weight:var(--font-weight-medium)}@media (max-width: 768px){.footer-grid{grid-template-columns:1fr;gap:var(--space-8)}.footer-inner{padding:var(--space-10) var(--space-4) var(--space-6)}}.about-page{min-height:60vh}.about-hero{padding:var(--space-20) 0 var(--space-16);text-align:center;background:radial-gradient(ellipse at 50% 0%,rgba(108,60,225,.08) 0%,transparent 60%),var(--color-bg)}.about-hero h1{font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-6);letter-spacing:-.02em}.text-gradient{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.about-hero-text{font-size:var(--font-size-lg);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);max-width:640px;margin:0 auto}.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}.value-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-8);text-align:center;transition:all var(--transition-base)}.value-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.value-icon{width:56px;height:56px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xl);margin:0 auto var(--space-5)}.value-card h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-3)}.value-card p{font-size:var(--font-size-sm);color:var(--color-text-muted);line-height:var(--line-height-relaxed)}@media (max-width: 768px){.about-hero{padding:var(--space-12) 0 var(--space-10)}.about-hero h1{font-size:var(--font-size-3xl)}.values-grid{grid-template-columns:1fr}}.account-page{min-height:80vh;padding:var(--space-8) 0;display:flex;align-items:center;justify-content:center}.profile-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);padding:var(--space-10);max-width:480px;width:100%;box-shadow:var(--shadow-sm)}.profile-header{display:flex;align-items:center;gap:var(--space-5);margin-bottom:var(--space-8);padding-bottom:var(--space-8);border-bottom:1px solid var(--color-border-light)}.profile-avatar{width:64px;height:64px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);flex-shrink:0}.profile-details h2{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-1)}.profile-email{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-2)}.profile-actions{display:flex;flex-direction:column;gap:var(--space-3)}.profile-actions .common-btn,.profile-actions .btn{width:100%;justify-content:center}@media (max-width: 768px){.account-page{padding:var(--space-8) 0 var(--space-12)}.profile-card{padding:var(--space-6);border-radius:var(--radius-lg)}}.loading-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg)}.loading-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-6);animation:fadeIn var(--transition-slow) ease-out}.loading-logo{font-size:3.5rem;font-weight:var(--font-weight-bold);color:var(--color-primary);animation:pulse 2s ease-in-out infinite}.loading-bar{width:180px;height:4px;background:var(--color-border);border-radius:var(--radius-full);overflow:hidden}.loading-bar-fill{width:40%;height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-full);animation:loading-slide 1.4s ease-in-out infinite}@keyframes loading-slide{0%{transform:translate(-100%)}to{transform:translate(350%)}}.loading-text{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:var(--font-weight-medium)}.courses-page{min-height:60vh;padding:var(--space-12) 0 var(--space-20)}.courses-header{margin-bottom:var(--space-10)}.courses-header h1{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-2)}.courses-header p{font-size:var(--font-size-base);color:var(--color-text-muted)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-6)}@media (max-width: 768px){.courses-page{padding:var(--space-8) 0 var(--space-12)}.courses-grid{grid-template-columns:1fr}}.course-card{display:flex;flex-direction:column;background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-base)}.course-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.course-card-image{position:relative;height:200px;overflow:hidden}.course-card-image img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}.course-card:hover .course-card-image img{transform:scale(1.05)}.course-card-badge{position:absolute;top:var(--space-3);right:var(--space-3);font-size:var(--font-size-sm);font-weight:var(--font-weight-bold);background:#6c3ce1e6!important;color:#fff!important;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full)}.course-card-body{flex:1;display:flex;flex-direction:column;padding:var(--space-5)}.course-card-title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-3);line-height:var(--line-height-tight);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.course-card-meta{display:flex;flex-wrap:wrap;gap:var(--space-4);margin-bottom:var(--space-5)}.course-card-instructor,.course-card-duration{display:inline-flex;align-items:center;gap:var(--space-1);font-size:var(--font-size-xs);color:var(--color-text-muted)}.course-card-actions{margin-top:auto;display:flex;gap:var(--space-2);align-items:center}.course-card-actions .common-btn{flex:1;text-align:center;font-size:var(--font-size-xs);padding:var(--space-2) var(--space-4)}.course-card-actions .btn-danger{flex:none}.course-detail-page{min-height:60vh;padding:var(--space-12) 0 var(--space-20);animation:fadeIn var(--transition-slow) ease-out}.course-detail-layout{display:grid;grid-template-columns:1fr 360px;gap:var(--space-10);align-items:start}.course-detail-image{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:var(--space-8);border:1px solid var(--color-border-light)}.course-detail-image img{width:100%;height:auto;display:block}.course-detail-content h1{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-4);line-height:var(--line-height-tight)}.course-detail-description{font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.course-sidebar-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-6);position:sticky;top:calc(var(--header-height) + var(--space-6));box-shadow:var(--shadow-sm)}.course-price{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:var(--space-6);padding-bottom:var(--space-6);border-bottom:1px solid var(--color-border-light)}.price-label{font-size:var(--font-size-sm);color:var(--color-text-muted)}.price-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-primary)}.course-info-list{display:flex;flex-direction:column;gap:var(--space-4);margin-bottom:var(--space-6)}.course-info-item{display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.course-info-item svg{flex-shrink:0;color:var(--color-text-muted)}.course-info-item span{flex:1}.course-info-item strong{color:var(--color-text);font-weight:var(--font-weight-medium)}.course-cta-btn{width:100%;font-size:var(--font-size-sm)!important}@media (max-width: 768px){.course-detail-layout{grid-template-columns:1fr;gap:var(--space-6)}.course-detail-page{padding:var(--space-6) 0 var(--space-12)}.course-sidebar-card{position:static}.course-detail-content h1{font-size:var(--font-size-2xl)}}.payment-success-page{min-height:70vh;display:flex;align-items:center;justify-content:center;padding:var(--space-10);background:radial-gradient(ellipse at 50% 50%,rgba(16,185,129,.06) 0%,transparent 60%),var(--color-bg)}.success-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);padding:var(--space-12) var(--space-10);text-align:center;max-width:440px;width:100%;box-shadow:var(--shadow-md)}.success-icon{color:var(--color-success);margin-bottom:var(--space-6);animation:scaleIn var(--transition-spring) ease-out}.success-card h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-2)}.success-message{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-6)}.success-ref{display:flex;align-items:center;justify-content:space-between;background:var(--color-bg);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);margin-bottom:var(--space-8);font-size:var(--font-size-sm)}.success-ref span{color:var(--color-text-muted)}.success-ref code{color:var(--color-text);font-weight:var(--font-weight-medium);font-size:var(--font-size-xs)}.success-card .common-btn{width:100%}@media (max-width: 768px){.payment-success-page{padding:var(--space-6)}.success-card{padding:var(--space-8) var(--space-6)}}.dashboard-page{min-height:60vh;padding:var(--space-12) 0 var(--space-20)}.dashboard-header{margin-bottom:var(--space-10)}.dashboard-header h1{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-2)}.dashboard-header p{font-size:var(--font-size-base);color:var(--color-text-muted)}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-6)}@media (max-width: 768px){.dashboard-page{padding:var(--space-8) 0 var(--space-12)}.dashboard-grid{grid-template-columns:1fr}}.course-study-page{min-height:60vh;padding:var(--space-12) 0 var(--space-20)}.study-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-xl);overflow:hidden;display:grid;grid-template-columns:400px 1fr;gap:0;box-shadow:var(--shadow-sm)}.study-image{overflow:hidden}.study-image img{width:100%;height:100%;object-fit:cover}.study-info{padding:var(--space-10);display:flex;flex-direction:column;justify-content:center}.study-info h1{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-3)}.study-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);margin-bottom:var(--space-5)}.study-meta{display:flex;gap:var(--space-6);margin-bottom:var(--space-8)}.study-meta-item{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted)}.study-info .common-btn{align-self:flex-start}@media (max-width: 768px){.study-card{grid-template-columns:1fr}.study-image{height:220px}.study-info{padding:var(--space-6)}}.lecture-page{min-height:calc(100vh - var(--header-height))}.lecture-progress-bar{background:var(--color-bg-alt);border-bottom:1px solid var(--color-border-light);padding:var(--space-4) 0}.progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2);font-size:var(--font-size-xs);color:var(--color-text-muted)}.progress-percent{font-weight:var(--font-weight-semibold);color:var(--color-primary)}.lecture-layout{display:grid;grid-template-columns:1fr 360px;min-height:calc(100vh - var(--header-height) - 60px)}.lecture-main{padding:var(--space-6);background:var(--color-bg)}.lecture-loading{display:flex;align-items:center;justify-content:center;min-height:400px}.lecture-player video{border-radius:var(--radius-lg);background:#000;width:100%}.lecture-details{padding:var(--space-6) 0}.lecture-details h1{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-2)}.lecture-details p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.lecture-placeholder{display:flex;align-items:center;justify-content:center;min-height:50vh}.lecture-sidebar{background:var(--color-surface);border-left:1px solid var(--color-border-light);display:flex;flex-direction:column;overflow-y:auto;max-height:calc(100vh - var(--header-height) - 60px)}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5);border-bottom:1px solid var(--color-border-light);position:sticky;top:0;background:var(--color-surface);z-index:1}.sidebar-header h3{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text)}.lecture-form{padding:var(--space-5);border-bottom:1px solid var(--color-border-light);background:var(--color-bg)}.lecture-form .form-group{margin-bottom:var(--space-3)}.lecture-form .form-label{font-size:var(--font-size-xs)}.lecture-form .form-input{font-size:var(--font-size-xs);padding:var(--space-2) var(--space-3)}.video-preview{width:100%;border-radius:var(--radius-md);margin-top:var(--space-2)}.lecture-list{flex:1}.lecture-item-wrapper{border-bottom:1px solid var(--color-border-light)}.lecture-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);cursor:pointer;transition:all var(--transition-fast)}.lecture-item:hover{background:var(--color-surface-hover)}.lecture-item-active{background:var(--color-primary-ghost)!important;border-left:3px solid var(--color-primary)}.lecture-number{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-full);background:var(--color-bg);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);flex-shrink:0}.lecture-item-active .lecture-number{background:var(--color-primary);color:#fff}.lecture-title{flex:1;font-size:var(--font-size-sm);color:var(--color-text);font-weight:var(--font-weight-medium)}.lecture-completed{color:var(--color-success);font-size:var(--font-size-lg);display:flex;align-items:center}.lecture-item-wrapper .btn-danger{margin:0 var(--space-5) var(--space-3);font-size:var(--font-size-xs)}@media (max-width: 768px){.lecture-layout{grid-template-columns:1fr}.lecture-sidebar{border-left:none;border-top:1px solid var(--color-border-light);max-height:none}.lecture-main{padding:var(--space-4)}}.admin-dashboard{animation:fadeIn var(--transition-slow) ease-out}.admin-page-header{margin-bottom:var(--space-8)}.admin-page-header h1{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-1)}.admin-page-header p{font-size:var(--font-size-sm);color:var(--color-text-muted)}.admin-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}.metric-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-6);display:flex;align-items:center;gap:var(--space-5);transition:all var(--transition-base)}.metric-icon{width:52px;height:52px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.metric-info{display:flex;flex-direction:column}.metric-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text)}.metric-label{font-size:var(--font-size-sm);color:var(--color-text-muted)}@media (max-width: 768px){.admin-stats-grid{grid-template-columns:1fr}}.admin-courses{animation:fadeIn var(--transition-slow) ease-out}.add-course-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-8);margin-bottom:var(--space-10)}.add-course-card h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-6)}.add-course-form .form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4)}.add-course-form .form-group{margin-bottom:var(--space-4)}.image-preview{width:160px;height:auto;border-radius:var(--radius-md);margin-bottom:var(--space-4);border:1px solid var(--color-border)}.add-course-form .common-btn{margin-top:var(--space-2)}.existing-courses{margin-top:var(--space-4)}.existing-courses h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text);margin-bottom:var(--space-6)}@media (max-width: 768px){.add-course-card{padding:var(--space-5)}}.admin-users{animation:fadeIn var(--transition-slow) ease-out}.users-table-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);overflow:hidden}.user-name{font-weight:var(--font-weight-medium);color:var(--color-text)}.user-email{font-size:var(--font-size-sm);color:var(--color-text-muted)}.empty-cell{text-align:center;padding:var(--space-10)!important;color:var(--color-text-muted)}@media (max-width: 768px){.users-table-card{overflow-x:auto}.data-table{min-width:600px}}.admin-layout{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - var(--header-height))}.admin-content{padding:var(--space-8);background:var(--color-bg);overflow-y:auto}@media (max-width: 768px){.admin-layout{grid-template-columns:1fr}}.admin-sidebar{background:var(--color-bg-elevated);border-right:1px solid var(--color-border-light);display:flex;flex-direction:column;padding:var(--space-6) 0}.sidebar-brand{display:flex;align-items:center;gap:var(--space-2);padding:0 var(--space-6) var(--space-6);border-bottom:1px solid var(--color-border-light);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text)}.sidebar-brand-symbol{color:var(--color-primary);font-size:var(--font-size-xl)}.sidebar-nav{flex:1;padding:var(--space-4) var(--space-3);display:flex;flex-direction:column;gap:var(--space-1)}.sidebar-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);text-decoration:none;border-radius:var(--radius-md);transition:all var(--transition-fast)}.sidebar-link:hover{background:var(--color-surface-hover);color:var(--color-text)}.sidebar-link-active{background:var(--color-primary-ghost);color:var(--color-primary);font-weight:var(--font-weight-semibold)}.sidebar-icon{font-size:var(--font-size-base);display:flex;align-items:center}.sidebar-footer{padding:var(--space-4) var(--space-3) 0;border-top:1px solid var(--color-border-light)}@media (max-width: 768px){.admin-sidebar{flex-direction:row;padding:var(--space-3);border-right:none;border-bottom:1px solid var(--color-border-light);overflow-x:auto}.sidebar-brand{display:none}.sidebar-nav{flex-direction:row;padding:0}.sidebar-footer{border-top:none;padding:0}}:root{--color-primary: #8a4baf;--color-primary-light: #a36ac7;--color-primary-dark: #703396;--color-primary-ghost: rgba(138, 75, 175, .08);--color-secondary: #F59E0B;--color-secondary-light: #FBBF24;--color-bg: #F8F9FC;--color-bg-alt: #FFFFFF;--color-bg-elevated: #FFFFFF;--color-surface: #FFFFFF;--color-surface-hover: #F1F3F9;--color-border: #E2E5F1;--color-border-light: #ECEEF5;--color-text: #1A1D2B;--color-text-secondary: #5F6580;--color-text-muted: #9195AB;--color-text-inverse: #FFFFFF;--color-success: #10B981;--color-success-light: rgba(16, 185, 129, .1);--color-warning: #F59E0B;--color-error: #EF4444;--color-error-light: rgba(239, 68, 68, .1);--color-info: #3B82F6;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .1);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .12);--shadow-glow: 0 0 24px rgba(108, 60, 225, .2);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3.25rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-base: 1.5;--line-height-relaxed: 1.75;--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;--space-24: 6rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-sticky: 200;--z-modal: 300;--z-toast: 400;--header-height: 72px;--sidebar-width: 260px;--max-width: 1200px}[data-theme=dark]{--color-primary: #6C3CE1;--color-primary-light: #8B5CF6;--color-primary-dark: #5521C6;--color-primary-ghost: rgba(108, 60, 225, .08);--color-bg: #0F1117;--color-bg-alt: #161821;--color-bg-elevated: #1C1F2E;--color-surface: #1C1F2E;--color-surface-hover: #252839;--color-border: #2A2D3E;--color-border-light: #222539;--color-text: #E8EAF0;--color-text-secondary: #9CA0B8;--color-text-muted: #6B7094;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .2);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .35);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .5);--shadow-glow: 0 0 24px rgba(108, 60, 225, .3)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-base);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-base),color var(--transition-base)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-light)}img{max-width:100%;display:block}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-6)}.section{padding:var(--space-20) 0}.section-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-text);margin-bottom:var(--space-2)}.section-subtitle{font-size:var(--font-size-lg);color:var(--color-text-secondary);margin-bottom:var(--space-12)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);line-height:1;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));color:var(--color-text-inverse);box-shadow:0 2px 8px #6c3ce140}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #6c3ce159}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1.5px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-surface-hover);border-color:var(--color-primary);color:var(--color-primary)}.btn-danger{background:var(--color-error);color:var(--color-text-inverse)}.btn-danger:hover:not(:disabled){background:#dc2626;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-primary-ghost);color:var(--color-primary)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-base);border-radius:var(--radius-lg)}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--font-size-xs)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md);font-size:var(--font-size-lg)}.form-group{margin-bottom:var(--space-5)}.form-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text);margin-bottom:var(--space-2)}.form-input{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-family);font-size:var(--font-size-sm);color:var(--color-text);background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast);outline:none}.form-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-ghost)}.form-input::placeholder{color:var(--color-text-muted)}.form-select{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-family);font-size:var(--font-size-sm);color:var(--color-text);background:var(--color-bg);border:1.5px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;outline:none;transition:all var(--transition-fast);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235F6580' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.form-select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-ghost)}.form-file{position:relative}.form-file input[type=file]{width:100%;padding:var(--space-3) var(--space-4);font-family:var(--font-family);font-size:var(--font-size-sm);color:var(--color-text-secondary);background:var(--color-bg);border:1.5px dashed var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.form-file input[type=file]:hover{border-color:var(--color-primary)}.card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-body{padding:var(--space-6)}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-3);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);border-radius:var(--radius-full);line-height:1.4}.badge-primary{background:var(--color-primary-ghost);color:var(--color-primary)}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:#f59e0b1a;color:var(--color-warning)}.badge-secondary{background:var(--color-surface-hover);color:var(--color-text-secondary)}.skeleton{position:relative;overflow:hidden;background:var(--color-surface-hover);border-radius:var(--radius-md)}.skeleton:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.08) 50%,transparent 100%);animation:skeleton-shimmer 1.8s ease-in-out infinite}@keyframes skeleton-shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.skeleton-text{height:14px;margin-bottom:var(--space-2);width:80%}.skeleton-title{height:20px;margin-bottom:var(--space-3);width:60%}.skeleton-image{width:100%;height:200px}.skeleton-avatar{width:48px;height:48px;border-radius:var(--radius-full)}.skeleton-btn{height:40px;width:120px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-16) var(--space-6);color:var(--color-text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:var(--space-4);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);margin-bottom:var(--space-2)}.empty-state-description{font-size:var(--font-size-sm);max-width:360px}.data-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--color-surface);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border-light)}.data-table thead{background:var(--color-bg)}.data-table th{padding:var(--space-4) var(--space-5);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;text-align:left;border-bottom:1px solid var(--color-border-light)}.data-table td{padding:var(--space-4) var(--space-5);font-size:var(--font-size-sm);color:var(--color-text);border-bottom:1px solid var(--color-border-light)}.data-table tbody tr{transition:background var(--transition-fast)}.data-table tbody tr:hover{background:var(--color-surface-hover)}.data-table tbody tr:last-child td{border-bottom:none}.metric-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);padding:var(--space-6);display:flex;align-items:flex-start;gap:var(--space-4);transition:all var(--transition-base)}.metric-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.metric-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xl);flex-shrink:0}.metric-card-content{flex:1}.metric-card-label{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-1)}.metric-card-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text)}.progress-bar{width:100%;height:8px;background:var(--color-bg);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-full);transition:width var(--transition-slow)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(16px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes checkmark{0%{stroke-dashoffset:50}to{stroke-dashoffset:0}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-fade-in-up{animation:fadeInUp var(--transition-slow) ease-out}.animate-scale-in{animation:scaleIn var(--transition-base) ease-out}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}::selection{background:var(--color-primary);color:#fff}@media (max-width: 768px){:root{--font-size-3xl: 1.625rem;--font-size-4xl: 2rem;--font-size-5xl: 2.5rem;--header-height: 64px}.container{padding:0 var(--space-4)}.section{padding:var(--space-12) 0}}
