:root{--bg-color: #f8fafc;--text-primary: #1e293b;--text-secondary: #64748b;--accent-primary: #6366f1;--accent-secondary: #ec4899;--card-bg: rgba(255, 255, 255, .8);--card-border: rgba(226, 232, 240, .8);--header-bg: rgba(255, 255, 255, .7);--footer-bg: #ffffff;--blob-1: rgba(99, 102, 241, .15);--blob-2: rgba(236, 72, 153, .15);--glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, .07)}[data-theme=dark]{--bg-color: #0f172a;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #818cf8;--accent-secondary: #f472b6;--card-bg: rgba(30, 41, 59, .7);--card-border: rgba(51, 65, 85, .5);--header-bg: rgba(15, 23, 42, .8);--footer-bg: #1e293b;--blob-1: rgba(99, 102, 241, .2);--blob-2: rgba(236, 72, 153, .2);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,sans-serif;transition:background-color .4s cubic-bezier(.4,0,.2,1),color .4s cubic-bezier(.4,0,.2,1);overflow-x:hidden;min-height:100vh}h1,h2,h3{font-family:Outfit,sans-serif;font-weight:700}.app-container{display:flex;flex-direction:column;min-height:100vh;position:relative;z-index:1}.app-header{position:sticky;top:0;z-index:100;background:var(--header-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--card-border);padding:1rem 2rem}.header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo-section{display:flex;align-items:center;gap:1.5rem}.app-logo{height:48px;width:auto;filter:drop-shadow(0 0 8px var(--accent-primary))}.title-section h1{font-size:1.5rem;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-transform:uppercase;letter-spacing:1px}.title-section p{font-size:.875rem;color:var(--text-secondary);font-weight:500}.theme-switcher{background:var(--card-bg);border:1px solid var(--card-border);padding:.5rem;border-radius:12px;cursor:pointer;transition:all .3s ease;color:var(--text-primary);display:flex;align-items:center;justify-content:center;box-shadow:var(--glass-shadow)}.theme-switcher:hover{transform:translateY(-2px);border-color:var(--accent-primary)}.switcher-icon{display:flex;transition:transform .5s ease}.app-main{flex:1;padding:3rem 2rem;max-width:1400px;margin:0 auto;width:100%}.workout-container{width:100%}.schedule-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem}.day-card{background:var(--card-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--card-border);border-radius:24px;padding:2rem;box-shadow:var(--glass-shadow);transition:transform .3s ease,border-color .3s ease;display:flex;flex-direction:column;gap:1.5rem}.day-card:hover{transform:translateY(-8px);border-color:var(--accent-primary)}.day-header{position:relative}.day-number{font-size:.75rem;font-weight:800;text-transform:uppercase;color:var(--accent-primary);letter-spacing:2px;display:block;margin-bottom:.25rem}.day-header h2{font-size:2rem;color:var(--text-primary);margin-bottom:.25rem}.session-count{font-size:.875rem;color:var(--text-secondary);font-weight:600}.video-list{display:flex;flex-direction:column;gap:1rem}.video-item{display:flex;align-items:center;gap:1rem;text-decoration:none;background:rgba(255,255,255,.03);padding:.75rem;border-radius:16px;transition:all .3s ease;border:1px solid transparent}.video-item:hover{background:rgba(255,255,255,.08);border-color:var(--card-border);transform:translate(4px)}.thumbnail-container{width:80px;height:80px;position:relative;border-radius:12px;overflow:hidden;flex-shrink:0}.video-thumbnail{width:100%;height:100%;object-fit:cover}.play-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;color:#fff;opacity:0;transition:opacity .3s ease}.video-item:hover .play-overlay{opacity:1}.play-overlay svg{width:24px;height:24px}.video-info h3{font-size:1rem;color:var(--text-primary);margin-bottom:.25rem}.video-info span{font-size:.75rem;color:var(--accent-primary);font-weight:600;text-transform:uppercase;letter-spacing:1px}.app-footer{padding:3rem 2rem;background:var(--footer-bg);border-top:1px solid var(--card-border);margin-top:4rem}.footer-content{max-width:1200px;margin:0 auto;text-align:center;color:var(--text-secondary)}.footer-content a{color:var(--accent-primary);text-decoration:none;font-weight:600;transition:color .3s ease}.footer-content a:hover{color:var(--accent-secondary)}.bg-decoration{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;overflow:hidden;pointer-events:none}.blob{position:absolute;border-radius:50%;filter:blur(80px);animation:move 20s infinite alternate}.blob-1{width:400px;height:400px;background:var(--blob-1);top:-100px;right:-100px}.blob-2{width:300px;height:300px;background:var(--blob-2);bottom:-50px;left:-50px;animation-duration:25s}@keyframes move{0%{transform:translate(0)}to{transform:translate(100px,100px)}}@media (max-width: 768px){.app-header{padding:1rem}.logo-section{gap:.75rem}.app-logo{height:36px}.title-section h1{font-size:1.1rem}.app-main{padding:2rem 1rem}.schedule-grid{grid-template-columns:1fr}.day-card{padding:1.5rem}}