:root {
            --navy-dark: #0f172a;
            --navy: #1e3a5f;
            --navy-light: #2d4a6f;
            --orange: #f97316;
            --orange-light: #fb923c;
            --orange-glow: rgba(249, 115, 22, 0.2);
            --white: #ffffff;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-400: #94a3b8;
            --gray-600: #475569;
            --gray-800: #1e293b;
            --success: #22c55e;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
        }

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

        body {
            font-family: 'Sarabun', sans-serif;
            color: var(--gray-800);
            line-height: 1.6;
            background: var(--white);
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Kanit', sans-serif;
            font-weight: 600;
            line-height: 1.3;
        }

        /* Top Bar */
        .top-bar {
            background: var(--navy-dark);
            color: var(--gray-400);
            padding: 8px 0;
            font-size: 13px;
        }

        .top-bar-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar a {
            color: var(--gray-400);
            text-decoration: none;
            margin-left: 24px;
            transition: color 0.2s;
        }

        .top-bar a:hover {
            color: var(--white);
        }

        .lang-switch {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .lang-switch button {
            background: transparent;
            border: 1px solid var(--gray-600);
            color: var(--gray-400);
            padding: 4px 10px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            transition: all 0.2s;
        }

        .lang-switch button.active,
        .lang-switch button:hover {
            background: var(--orange);
            border-color: var(--orange);
            color: var(--white);
        }

        /* Header */
        header {
            background: var(--white);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
        }

        .header-main {
            max-width: 1280px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .logo-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 700;
            font-size: 18px;
            font-family: 'Kanit', sans-serif;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
        }

        .logo-text .name {
            font-family: 'Kanit', sans-serif;
            font-weight: 600;
            font-size: 22px;
            color: var(--navy);
            letter-spacing: -0.5px;
        }

        .logo-text .tagline {
            font-size: 12px;
            color: var(--gray-600);
        }

        /* Navigation */
        nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        nav a {
            text-decoration: none;
            color: var(--gray-600);
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 8px;
            transition: all 0.2s;
            font-size: 15px;
        }

        nav a:hover {
            color: var(--navy);
            background: var(--gray-100);
        }

        nav a.active {
            color: var(--orange);
        }

        .nav-dropdown {
            position: relative;
        }

        .nav-dropdown-content {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background: var(--white);
            min-width: 240px;
            border-radius: 12px;
            box-shadow: var(--shadow-xl);
            padding: 8px;
            margin-top: 8px;
            border: 1px solid var(--gray-200);
        }

        .nav-dropdown:hover .nav-dropdown-content {
            display: block;
        }

        .nav-dropdown-content a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
        }

        .nav-dropdown-content a .icon {
            font-size: 20px;
        }

        .btn-primary {
            background: var(--orange);
            color: var(--white);
            padding: 12px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-family: 'Kanit', sans-serif;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
        }

        .btn-primary:hover {
            background: var(--orange-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
            color: var(--white);
            padding: 80px 0 100px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }

        .hero-content {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 14px;
            margin-bottom: 24px;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--success);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .hero h1 span {
            color: var(--orange);
        }

        .hero p {
            font-size: 18px;
            color: var(--gray-200);
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255,255,255,0.3);
            color: var(--white);
            padding: 12px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-family: 'Kanit', sans-serif;
            transition: all 0.2s;
        }

        .btn-outline:hover {
            border-color: var(--white);
            background: rgba(255,255,255,0.1);
        }

        /* Transport Mode Cards in Hero */
        .transport-modes-hero {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .mode-card-hero {
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 16px;
            padding: 24px;
            text-decoration: none;
            color: var(--white);
            transition: all 0.3s;
        }

        .mode-card-hero:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-4px);
            border-color: var(--orange);
        }

        .mode-card-hero .icon {
            font-size: 36px;
            margin-bottom: 12px;
            display: block;
        }

        .mode-card-hero h3 {
            font-size: 18px;
            margin-bottom: 4px;
        }

        .mode-card-hero p {
            font-size: 13px;
            color: var(--gray-400);
            margin: 0;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--white);
            margin-top: -50px;
            position: relative;
            z-index: 10;
            max-width: 1100px;
            margin-left: auto;
            margin-right: auto;
            border-radius: 16px;
            box-shadow: var(--shadow-xl);
            padding: 32px 48px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 0 16px;
            border-right: 1px solid var(--gray-200);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-family: 'Kanit', sans-serif;
            font-size: 36px;
            font-weight: 700;
            color: var(--navy);
            line-height: 1;
        }

        .stat-number span {
            color: var(--orange);
        }

        .stat-label {
            color: var(--gray-600);
            font-size: 14px;
            margin-top: 8px;
        }

        /* Section Styles */
        section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }

        .section-header .label {
            display: inline-block;
            background: var(--orange-glow);
            color: var(--orange);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 36px;
            color: var(--navy);
            margin-bottom: 16px;
        }

        .section-header p {
            color: var(--gray-600);
            font-size: 16px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Course Categories */
        .course-categories {
            background: var(--gray-50);
        }

        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--white);
            border-radius: 20px;
            padding: 32px;
            text-align: center;
            text-decoration: none;
            color: inherit;
            transition: all 0.3s;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--orange);
            transform: scaleX(0);
            transition: transform 0.3s;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-xl);
            border-color: var(--orange);
        }

        .category-card:hover::before {
            transform: scaleX(1);
        }

        .category-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 40px;
            color: var(--white);
            transition: all 0.3s;
        }

        .category-card:hover .category-icon {
            background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
            transform: scale(1.1) rotate(5deg);
        }

        .category-card h3 {
            font-size: 20px;
            color: var(--navy);
            margin-bottom: 8px;
        }

        .category-card .standard {
            font-size: 14px;
            color: var(--gray-600);
            margin-bottom: 12px;
        }

        .category-card .course-count {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--orange);
            font-weight: 600;
            font-size: 14px;
        }

        /* Featured Courses */
        .featured-courses {
            background: var(--white);
        }

        .courses-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .course-card {
            background: var(--white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all 0.3s;
            border: 1px solid var(--gray-200);
        }

        .course-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }

        .course-image {
            height: 160px;
            position: relative;
            overflow: hidden;
        }

        .course-image.road { background: linear-gradient(135deg, #1e3a5f 0%, #3b5998 100%); }
        .course-image.sea { background: linear-gradient(135deg, #0e7490 0%, #06b6d4 100%); }
        .course-image.air { background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%); }
        .course-image.rail { background: linear-gradient(135deg, #059669 0%, #10b981 100%); }

        .course-image .mode-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 64px;
            opacity: 0.3;
        }

        .course-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--white);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            color: var(--navy);
        }

        .course-badge.popular {
            background: var(--orange);
            color: var(--white);
        }

        .course-content {
            padding: 24px;
        }

        .course-meta {
            display: flex;
            gap: 16px;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--gray-600);
        }

        .course-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .course-card h3 {
            font-size: 18px;
            color: var(--navy);
            margin-bottom: 8px;
        }

        .course-card p {
            font-size: 14px;
            color: var(--gray-600);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .course-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--gray-200);
        }

        .course-price {
            font-family: 'Kanit', sans-serif;
            font-size: 24px;
            font-weight: 600;
            color: var(--orange);
        }

        .course-price span {
            font-size: 14px;
            color: var(--gray-600);
            font-weight: 400;
        }

        .btn-small {
            background: var(--navy);
            color: var(--white);
            padding: 10px 20px;
            border-radius: 8px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s;
        }

        .btn-small:hover {
            background: var(--orange);
        }

        /* Why Choose Us */
        .why-us {
            background: var(--gray-50);
        }

        .why-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .why-card {
            background: var(--white);
            padding: 32px;
            border-radius: 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }

        .why-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .why-icon {
            width: 64px;
            height: 64px;
            background: var(--orange-glow);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
        }

        .why-card h3 {
            font-size: 18px;
            color: var(--navy);
            margin-bottom: 12px;
        }

        .why-card p {
            font-size: 14px;
            color: var(--gray-600);
        }

        /* Schedule Section */
        .schedule-section {
            background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%);
            color: var(--white);
        }

        .schedule-section .section-header h2 {
            color: var(--white);
        }

        .schedule-section .section-header p {
            color: var(--gray-400);
        }

        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .schedule-card {
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 16px;
            padding: 24px;
            text-decoration: none;
            color: var(--white);
            transition: all 0.3s;
        }

        .schedule-card:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-4px);
        }

        .schedule-date {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .schedule-date .day {
            font-family: 'Kanit', sans-serif;
            font-size: 32px;
            font-weight: 700;
            line-height: 1;
            color: var(--orange);
        }

        .schedule-date .month-year {
            font-size: 13px;
            color: var(--gray-400);
        }

        .schedule-card h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .schedule-card .location {
            font-size: 13px;
            color: var(--gray-400);
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 16px;
        }

        .schedule-card .seats {
            font-size: 13px;
            padding: 6px 12px;
            background: rgba(34, 197, 94, 0.2);
            color: var(--success);
            border-radius: 50px;
            display: inline-block;
        }

        .schedule-card .seats.limited {
            background: rgba(249, 115, 22, 0.2);
            color: var(--orange);
        }

        /* Accreditation */
        .accreditation {
            background: var(--white);
            text-align: center;
        }

        .accreditation-logos {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 32px;
        }

        .accreditation-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            padding: 24px;
            background: var(--gray-50);
            border-radius: 12px;
            min-width: 180px;
        }

        .accreditation-item img {
            height: 60px;
            width: auto;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: all 0.3s;
        }

        .accreditation-item:hover img {
            filter: grayscale(0%);
            opacity: 1;
        }

        .accreditation-item span {
            font-size: 13px;
            color: var(--gray-600);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
            color: var(--white);
            text-align: center;
            padding: 80px 0;
        }

        .cta-section h2 {
            font-size: 36px;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 32px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-white {
            background: var(--white);
            color: var(--orange);
            padding: 14px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-family: 'Kanit', sans-serif;
            transition: all 0.2s;
            box-shadow: var(--shadow-md);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline-white {
            background: transparent;
            border: 2px solid var(--white);
            color: var(--white);
            padding: 12px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-family: 'Kanit', sans-serif;
            transition: all 0.2s;
        }

        .btn-outline-white:hover {
            background: var(--white);
            color: var(--orange);
        }

        /* Footer */
        footer {
            background: var(--navy-dark);
            color: var(--gray-400);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .footer-brand .logo-text .name {
            color: var(--white);
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-contact {
            margin-top: 24px;
        }

        .footer-contact a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--gray-400);
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-contact a:hover {
            color: var(--orange);
        }

        footer h4 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 20px;
        }

        .footer-links a {
            display: block;
            color: var(--gray-400);
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        .social-links {
            display: flex;
            gap: 12px;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gray-400);
            text-decoration: none;
            transition: all 0.2s;
        }

        .social-links a:hover {
            background: var(--orange);
            color: var(--white);
        }

        /* Mobile Menu Button */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--navy);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero h1 {
                font-size: 36px;
            }

            .hero-cta {
                justify-content: center;
            }

            .transport-modes-hero {
                max-width: 500px;
                margin: 0 auto;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                margin: -40px 24px 0;
            }

            .stat-item:nth-child(2) {
                border-right: none;
            }

            .categories-grid,
            .courses-grid,
            .why-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .schedule-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            nav {
                display: none;
            }

            .hero {
                padding: 60px 0 80px;
            }

            .hero h1 {
                font-size: 28px;
            }

            .hero p {
                font-size: 16px;
            }

            .transport-modes-hero {
                grid-template-columns: 1fr;
            }

            .stats-bar {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--gray-200);
                padding-bottom: 24px;
            }

            .stat-item:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }

            .categories-grid,
            .courses-grid,
            .why-grid,
            .schedule-grid {
                grid-template-columns: 1fr;
            }

            .section-header h2 {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }

            .accreditation-logos {
                gap: 24px;
            }

            .accreditation-item {
                min-width: 140px;
                padding: 16px;
            }
        }