:root { color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; padding: 24px; font-family: Tahoma, system-ui, sans-serif; background: #0f1115; color: #e8e8e8; }
body.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
h1 { font-size: 20px; margin: 0 0 12px; }
.card { width: 100%; max-width: 360px; background: #171a21; border: 1px solid #262b36; border-radius: 12px; padding: 24px; }
label { display: block; margin-bottom: 14px; font-size: 14px; color: #8b93a7; }
input { display: block; width: 100%; margin-top: 6px; padding: 10px; border-radius: 8px; border: 1px solid #333a48; background: #0f1115; color: #e8e8e8; font-size: 15px; }
button, .btn { cursor: pointer; border: 0; border-radius: 8px; padding: 10px 16px; font-size: 15px; color: #fff; background: #2d7ff9; text-decoration: none; display: inline-block; }
button:disabled { opacity: .6; cursor: default; }
button.ghost { background: #262b36; }
.error { color: #ff6b6b; font-size: 14px; }
.muted { color: #8b93a7; font-size: 14px; }
.top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
table { width: 100%; border-collapse: collapse; background: #171a21; border-radius: 8px; overflow: hidden; }
th, td { padding: 12px; text-align: right; border-bottom: 1px solid #262b36; }
th { color: #8b93a7; font-size: 13px; font-weight: 600; }