* { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, -apple-system, sans-serif; }
body { background: #f3f4f6; color: #111827; }
.auth { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1rem; }
.auth-card { background: white; padding: 2rem; border-radius: 12px; box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1); width: 100%; max-width: 400px; }
h1 { font-size: 1.5rem; margin-bottom: 1.5rem; text-align: center; color: #1e3a8a; }
label { display: block; margin-bottom: 1rem; font-weight: 500; font-size: 0.9rem; }
input { width: 100%; padding: 0.75rem; border: 1px solid #d1d5db; border-radius: 8px; margin-top: 0.25rem; font-size: 1rem; }
button, .btn { display: block; width: 100%; padding: 0.75rem; background: #2563eb; color: white; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; text-align: center; text-decoration: none; margin-bottom: 1rem; font-size: 1rem; }
.btn-outline { background: transparent; color: #2563eb; border: 2px solid #2563eb; }
.err { color: #dc2626; font-size: 0.875rem; margin-top: 0.5rem; text-align: center; font-weight: bold; }
.topbar { background: white; padding: 1rem; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 1px 3px rgb(0 0 0 / 0.1); }
.topbar h1 { margin-bottom: 0; font-size: 1.2rem; }
.topbar button { width: auto; margin-bottom: 0; background: #ef4444; padding: 0.5rem 1rem; font-size: 0.875rem; }
.container { padding: 2rem; max-width: 800px; margin: 0 auto; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }