.auth-card {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    padding: 3rem;
    margin-top: 3rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: #94a3b8;
    font-size: 1rem;
}

.form-label {
    color: #cbd5e1;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control {
    background: #0f172a;
    border: 1px solid #334155;
    color: #f1f5f9;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.form-control:focus {
    background: #0f172a;
    border-color: #667eea;
    color: #f1f5f9;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    padding: 0.75rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s;
    margin-top: 1.5rem;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    color: #94a3b8;
}

.auth-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

.auth-link a:hover {
    color: #764ba2;
}

.error-text {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}