* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1a1a2e;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container { width: 100%; max-width: 400px; padding: 20px; }

.login-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.login-header { text-align: center; margin-bottom: 32px; }
.login-header h1 { color: #06479b; font-size: 28px; margin-bottom: 4px; }
.login-header p { color: #666; font-size: 14px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; color: #333; }
.form-group input {
    width: 100%; padding: 12px 16px; border: 1px solid #ddd;
    border-radius: 8px; font-size: 15px; transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: #06479b; box-shadow: 0 0 0 3px rgba(6, 71, 155, 0.1); }

.btn {
    display: inline-block; padding: 12px 24px; border: none; border-radius: 8px;
    font-size: 15px; font-weight: 600; cursor: pointer; transition: background-color 0.2s;
    text-decoration: none; text-align: center;
}
.btn-primary { background: #06479b; color: #fff; }
.btn-primary:hover { background: #053a7d; }
.btn-block { display: block; width: 100%; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }