:root{--primary-red: #FB4D56;--bg-white: #FFFFFF;--bg-silver: #F2F4F8;--text-dark: #161616;--text-muted: #525252;--font-family: "Avenir Next", "Avenir", "Helvetica Neue", sans-serif;--card-radius: 20px;--card-shadow: 0 4px 24px rgba(0, 0, 0, .08);--color-white: #FFFFFF;--color-silver: #a8a8a8;--color-dark-gray: #333333}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-family);background-color:var(--bg-silver);color:var(--text-dark);-webkit-font-smoothing:antialiased}.app-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.app-card{background:var(--bg-white);border-radius:var(--card-radius);box-shadow:var(--card-shadow);width:100%;max-width:680px;min-height:700px;overflow:hidden;display:flex;flex-direction:column;position:relative;transition:all .3s ease}h1,h2,h3{font-weight:200;margin-top:0;color:var(--text-dark)}h1{font-size:2.5rem;letter-spacing:-1px}h2{font-size:2rem;letter-spacing:-.5px}h3{font-size:1.5rem}p{font-weight:400;line-height:1.6;color:var(--text-muted)}.btn-primary{background-color:var(--primary-red);color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;font-weight:500;border-radius:50px;cursor:pointer;transition:opacity .2s;width:100%}.btn-primary:hover{opacity:.9}.btn-secondary{background-color:transparent;color:var(--text-muted);border:1px solid #e0e0e0;padding:.8rem 2rem;font-size:1rem;font-weight:500;border-radius:50px;cursor:pointer;width:100%}.fade-in{animation:fadeIn .5s ease-in-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.video-aspect-container{width:100%;aspect-ratio:4 / 3;position:relative;overflow:hidden;border-radius:8px;background:#333;margin:1rem auto}.video-aspect-container video,.video-aspect-container canvas{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.spinner{width:24px;height:24px;border:3px solid #e9ecef;border-top-color:var(--primary-red);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}