:root{--bg: #0a0a0c;--accent: #e50914;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#f2f2f5;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}main{min-height:calc(100vh - 65px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1.1rem;border-radius:8px;border:1px solid transparent;font-size:.9rem;font-weight:600;cursor:pointer;text-decoration:none;transition:opacity .15s ease,transform .15s ease}.btn:hover{opacity:.9}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);color:#fff}.btn.ghost{background:transparent;color:#e5e5ec;border-color:#3a3a44}.btn.danger{background:#5c1414;color:#ffd0d0}