:root {
    --primary: #0c4a6e;
    --accent: #06b6d4;
    --bg: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --gray-200: #e2e8f0;
    --danger: #ef4444;
    --warning: #f59e0b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}
.login-card {
    width: 100%;
    max-width: 440px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    padding: 2.5rem 2rem;
}
.brand { display: flex; align-items: center; justify-content: center; gap: 0.75rem; margin-bottom: 1.5rem; }
.brand-icon {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.brand-text { font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 1.25rem; line-height: 1.1; }
.brand-text small { display: block; font-family: 'Inter', sans-serif; font-weight: 400; font-size: 0.7rem; color: var(--text-secondary); }
h1 { font-size: 1.1rem; font-weight: 600; text-align: center; margin-bottom: 0.25rem; }
.subtitle { font-size: 0.8rem; color: var(--text-secondary); text-align: center; margin-bottom: 1.5rem; }
.form-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-secondary); margin-bottom: 0.4rem; }
.form-control { font-size: 0.9rem; padding: 0.65rem 0.85rem; border-radius: 8px; }
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.12); }
.btn-primary { background: var(--primary); border-color: var(--primary); font-weight: 500; padding: 0.65rem; border-radius: 8px; width: 100%; }
.btn-primary:hover { background: #083344; border-color: #083344; }
.alert { font-size: 0.8rem; border-radius: 8px; padding: 0.65rem 0.85rem; margin-bottom: 1rem; }
.alert-danger { background: rgba(239, 68, 68, 0.08); border: 1px solid rgba(239, 68, 68, 0.2); color: var(--danger); }
.alert-warning { background: rgba(245, 158, 11, 0.08); border: 1px solid rgba(245, 158, 11, 0.2); color: #92400e; }
.footnote { text-align: center; font-size: 0.7rem; color: var(--text-secondary); margin-top: 1.25rem; }
.footnote code { background: #f1f5f9; padding: 0.1rem 0.35rem; border-radius: 4px; font-size: 0.7rem; }
.mono { font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; }