       :root {
            --primary-color: #2C7C80;
            --secondary-color: #2C7C80;
            --light-color: #f8f9fa;
            --dark-color: #212529;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f0f2f5;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
        }

        .navbar-brand span {
            color: var(--primary-color);
        }

        .hero-section {
            position: relative;
            height: 100vh;
            background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('/static/assets/media/customer_view/background.jpg');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding: 5%;
        }

        .signin-card {
            background-color: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
            padding: 2rem;
            max-width: 450px;
            width: 100%;
        }

        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }

        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
        }

        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem;
            margin-bottom: 0.75rem;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .btn-google {
            background-color: white;
            color: #444;
            border: 1px solid #ddd;
        }

        .btn-facebook {
            background-color: #4267B2;
            color: white;
            border: 1px solid #4267B2;
        }

        .btn-apple {
            background-color: #000;
            color: white;
            border: 1px solid #000;
        }

        .divider {
            margin: 1.5rem 0;
            position: relative;
            text-align: center;
        }

        .divider::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background-color: #e0e0e0;
        }

        .divider span {
            position: relative;
            background-color: white;
            padding: 0 1rem;
            color: #6c757d;
        }

        .footer {
            background-color: #fff;
            padding: 3rem 0;
        }

        .footer h5 {
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .footer-links {
            list-style: none;
            padding-left: 0;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            color: #6c757d;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary-color);
        }

        .social-icon {
            color: #6c757d;
            font-size: 1.25rem;
            margin-right: 1rem;
            transition: color 0.3s ease;
        }

        .social-icon:hover {
            color: var(--primary-color);
        }

        .qr-code {
            max-width: 120px;
            height: auto;
        }

        .bottom-footer {
            background-color: #f8f9fa;
            padding: 1rem 0;
            border-top: 1px solid #e0e0e0;
        }

        .bottom-footer a {
            color: #6c757d;
            text-decoration: none;
            margin-left: 1.5rem;
            font-size: 0.875rem;
        }

        .copyright {
            font-size: 0.875rem;
            color: #6c757d;
        }