:root {
            --primary-color: #003366; /* สีน้ำเงิน มมส */
            --secondary-color: #fdb913; /* สีเหลือง มมส */
            --bg-light: #f4f7f6;
        }

        body {
            font-family: 'Prompt', sans-serif;
            background-color: var(--bg-light);
            color: #333;
        }

        /* Top Bar */
        .top-bar {
            background-color: var(--primary-color);
            color: #fff;
            font-size: 0.85rem;
            padding: 5px 0;
        }

        /* Header / Navbar */
        .navbar {
            background-color: #ffffff;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            padding: 15px 0;
        }
        .navbar-brand img {
            height: 50px;
            margin-right: 15px;
        }
        .navbar-brand-text {
            display: flex;
            flex-direction: column;
        }
        .navbar-brand-text .title {
            font-weight: 600;
            color: var(--primary-color);
            font-size: 1.2rem;
            line-height: 1.2;
        }
        .navbar-brand-text .subtitle {
            font-size: 0.85rem;
            color: #666;
        }

        /* Page Banner */
        .page-banner {
            background: linear-gradient(135deg, var(--primary-color) 0%, #0d6efd 100%);
            color: white;
            padding: 40px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        
        .page-banner h1 {
            font-weight: 600;
        }

        /* Infographic Steps */
        .step-card {
            text-align: center;
            padding: 20px;
            background: transparent;
            border: none;
            transition: transform 0.3s ease;
        }
        .step-card:hover {
            transform: translateY(-5px);
        }
        .icon-wrapper {
            width: 80px;
            height: 80px;
            background: white;
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.2rem;
            margin: 0 auto 15px;
            box-shadow: 0 10px 20px rgba(0, 51, 102, 0.1);
            position: relative;
            border: 3px solid #e9ecef;
            transition: all 0.3s ease;
        }
        .step-card:hover .icon-wrapper {
            border-color: var(--secondary-color);
            color: var(--secondary-color);
        }
        .step-arrow {
            position: absolute;
            top: 40px;
            right: -25%;
            font-size: 1.5rem;
            color: #ccc;
        }

        /* Form Section */
        .form-section {
            background: #ffffff;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
            margin-bottom: 60px;
            border-top: 5px solid var(--secondary-color);
        }
        .form-title {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f0f0;
        }
        .form-label {
            font-weight: 500;
            color: #444;
        }
        .form-control, .form-select {
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid #ced4da;
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(0, 51, 102, 0.1);
        }
        .btn-submit {
            background-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            font-size: 1.1rem;
            font-weight: 500;
            border-radius: 8px;
            border: none;
            transition: all 0.3s;
        }
        .btn-submit:hover {
            background-color: #002244;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 51, 102, 0.3);
        }

        /* Mega Footer */
        .mega-footer {
            background-color: #1a1e23;
            color: #a0a5aa;
            padding-top: 60px;
            padding-bottom: 20px;
        }
        .mega-footer h5 {
            color: #ffffff;
            font-weight: 600;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .mega-footer h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #a0a5aa;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .footer-contact i {
            color: var(--secondary-color);
            margin-right: 10px;
            font-size: 1.2rem;
        }
        .footer-bottom {
            background-color: #111418;
            padding: 15px 0;
            text-align: center;
            font-size: 0.9rem;
            margin-top: 40px;
        }

        @media (max-width: 991px) {
            .step-arrow { display: none; }
        }