:root{--bg:#121820;--panel:#1d2430;--text:#e7edf7;--accent:#67c1ff}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,sans-serif;background:linear-gradient(145deg,#0f141b,#182230);color:var(--text)}main{max-width:1280px;margin:0 auto;padding:24px}.card{background:var(--panel);border:1px solid #34455b;border-radius:12px;padding:16px}a{color:var(--accent)}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;background:#131a23;color:var(--text);border:1px solid #34455b;border-radius:10px;padding:10px 12px}textarea{resize:vertical}button{background:#263344;color:var(--text);border:1px solid #46607c;border-radius:10px;padding:10px 14px;cursor:pointer}button:disabled{opacity:.6;cursor:default}