:root{--bg-color:#0b0f19;--text-color:#ffffff;--accent-color:#3b82f6;--accent-hover:#2563eb;}*{box-sizing:border-box;margin:0;padding:0;}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-color);min-height:100vh;display:flex;flex-direction:column;align-items:center;}header{width:100%;max-width:1200px;padding:20px;display:flex;justify-content:space-between;align-items:center;}.back-btn{display:inline-flex;align-items:center;color:var(--text-color);text-decoration:none;font-size:0.95rem;font-weight:500;opacity:0.8;transition:opacity 0.2s ease;}.back-btn:hover{opacity:1;}.back-btn svg{margin-right:8px;}main{flex:1;width:100%;max-width:1000px;padding:0 20px 40px 20px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:24px;}h1{font-size:2rem;font-weight:700;text-align:center;letter-spacing:-0.02em;}.unmute-text{font-size:1.1rem;color:#9ca3af;font-weight:500;text-align:center;animation:pulse 2s infinite;}@keyframes pulse{0%{opacity:0.6;}50%{opacity:1;}100%{opacity:0.6;}}.video-container{width:100%;max-width:800px;aspect-ratio:16 / 9;background-color:#000000;border-radius:12px;overflow:hidden;box-shadow:0 20px 25px -5px rgba(0,0,0,0.3);border:1px solid rgba(255,255,255,0.1);position:relative;}video{width:100%;height:100%;object-fit:contain;display:block;}.fullscreen-overlay-btn{position:absolute;top:15px;right:15px;background:rgba(0,0,0,0.6);color:white;border:1px solid rgba(255,255,255,0.2);padding:8px 12px;border-radius:6px;cursor:pointer;font-size:0.85rem;font-weight:500;z-index:10;transition:background 0.2s;display:flex;align-items:center;gap:6px;}.fullscreen-overlay-btn:hover{background:rgba(0,0,0,0.9);}.cta-button{display:inline-block;background-color:var(--accent-color);color:white;text-decoration:none;padding:14px 32px;font-size:1rem;font-weight:600;border-radius:8px;transition:background-color 0.2s ease,transform 0.1s ease;margin-top:10px;box-shadow:0 4px 6px -1px rgba(59,130,246,0.2);}.cta-button:hover{background-color:var(--accent-hover);}