body {
    background: linear-gradient(135deg, #1f2937 0%, #111827 50%, #030712 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
.login-container {
    width: 100%;
    max-width: 420px;
    padding: 15px;
}
.login-card {
    background: #ffffff;
    border-radius: 1rem;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.6);
    overflow: hidden;
}
.login-header {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    border-bottom: 3px solid #ef4444;
}
.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
}
.login-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.95rem;
}
.login-body {
    padding: 2rem;
}
.form-label {
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.form-control {
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s;
}
.form-control:focus {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}
.input-group-text {
    background: #fef2f2;
    border: 1px solid #d1d5db;
    border-right: none;
    color: #dc2626;
}
.input-group .form-control {
    border-left: none;
}
.btn-login {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    color: white;
    transition: all 0.3s;
    width: 100%;
}
.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}
.alert {
    border-radius: 0.5rem;
    font-size: 0.9rem;
}
.link-text {
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}
.link-text:hover {
    color: #991b1b;
    text-decoration: underline;
}
.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #6b7280;
    z-index: 10;
}
.password-toggle:hover {
    color: #dc2626;
}
.admin-badge {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border: 2px solid #ef4444;
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.admin-badge i {
    font-size: 1.5rem;
    color: #dc2626;
}
.admin-badge div {
    flex: 1;
}
.admin-badge h6 {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 700;
    color: #7f1d1d;
}
.admin-badge p {
    margin: 0;
    font-size: 0.75rem;
    color: #991b1b;
}
.security-notice {
    background: #f3f4f6;
    border-left: 4px solid #6b7280;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #374151;
}