*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:#111;background:#f5f5f5;min-height:100vh;font-family:system-ui,sans-serif}.center-screen{justify-content:center;align-items:center;min-height:100vh;display:flex}.card{background:#fff;border:1px solid #e0e0e0;border-radius:8px;flex-direction:column;gap:16px;width:360px;max-width:90vw;padding:40px;display:flex}.card-header{justify-content:space-between;align-items:center;display:flex}h1{font-size:22px;font-weight:600}.logout-btn{color:#666;background:0 0;border:1px solid #ccc;width:auto;padding:6px 12px;font-size:13px}.subtitle{color:#666;font-size:14px}form{flex-direction:column;gap:12px;display:flex}input[type=email]{border:1px solid #ccc;border-radius:6px;outline:none;width:100%;padding:10px 12px;font-size:14px}input[type=email]:focus{border-color:#111}button{color:#fff;cursor:pointer;background:#111;border:none;border-radius:6px;width:100%;padding:10px 16px;font-size:14px}button:disabled{opacity:.5;cursor:not-allowed}.success{color:#16a34a;font-size:14px}.error{color:#dc2626;font-size:14px}.loading-screen{justify-content:center;align-items:center;min-height:100vh;display:flex}.spinner{border:3px solid #e0e0e0;border-top-color:#111;border-radius:50%;width:28px;height:28px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}