:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #6366f1;
            --accent: #3b82f6;
            --light: #f1f5f9;
            --dark: #1e293b;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
            --gradient-premium: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.1);
            --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.15);
            --shadow-heavy: 0 15px 50px rgba(0, 0, 0, 0.2);
        }

         [data-theme="dark"] {
           --light: #1e293b;
		   --light2: #E0E0E0;
            --dark: #f1f5f9;
            --primary: #60a5fa;
            --accent: #93c5fd;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Sukhumvit Set', 'Prompt', -apple-system, BlinkMacSystemFont, sans-serif;
			/* new20250605*/
			 color: var(--light2);
        }

        body {
            background-color: #f8fafc;
            color: #334155;
            line-height: 1.6;
            overflow-x: hidden;
        }

        [data-theme="dark"] body {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #e2e8f0;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

         /* Header */
        header {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow-light);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            backdrop-filter: blur(20px);
            transition: all 0.3s ease;
        }

        [data-theme="dark"] header {
            background: rgba(30, 41, 59, 0.95);
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        /* Default: แสดงข้อความเต็มสำหรับหน้าจอปกติ */
        .logo .full-logo-text {
            display: inline;
        }
        .logo .short-logo-text {
            display: none;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: bold;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        .logo::before {
            content: "🚀";
            margin-right: 0.5rem;
            font-size: 1.5rem;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
        }

        .nav-links {
            display: flex;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            padding: 0.5rem 0;
        }
        
        .nav-links a::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--gradient-1);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-links a:hover::before,
        .nav-links a.active::before {
            width: 100%;
        }
        
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
        }

        .theme-toggle,
        .theme-toggle-menu {
            background: none;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 50%;
            transition: all 0.3s ease;
            color: var(--dark);
        }

        .theme-toggle:hover,
        .theme-toggle-menu:hover {
           
            transform: scale(1.1);
        }
        .login-button,
        .button {
            background: var(--gradient-1);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        }

        .button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
        }

        .hero {
            padding: 6rem 0;
            background: var(--gradient-1);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            animation: float 20s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateX(0px) translateY(0px); }
            25% { transform: translateX(5px) translateY(-5px); }
            50% { transform: translateX(-5px) translateY(-10px); }
            75% { transform: translateX(-5px) translateY(5px); }
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            animation: slideUp 1s ease-out;
        }

        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
            animation: slideUp 1s ease-out 0.2s both;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        
        /* CTA Section */
        .cta-section {
            padding: 8rem 0;
            background: var(--gradient-1);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-content h2 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }

        .cta-content p {
            font-size: 1.3rem;
            margin-bottom: 3rem;
            opacity: 0.9;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-buttons a {
            text-decoration: none;
        }

        .button-outline {
            background: transparent;
            color: white;
            border: 2px solid white;
            padding: 0.75rem 2rem;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

         .button-outline:hover {
            background: white;
            color: var(--primary);
            transform: translateY(-2px);
        }
        

        .mobile-menu-button {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.95);
            z-index: 999;
            padding: 2rem;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(10px);
        }
        
        .mobile-nav.active {
            display: flex;
        }
        
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-size: 1.25rem;
            font-weight: 500;
            margin: 1rem 0;
            transition: color 0.3s;
        }
        
        .mobile-nav a:hover {
            color: var(--primary);
        }
        
        .close-menu {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: none;
            border: none;
            font-size: 2rem;
            color: white;
            cursor: pointer;
        }

       

        .success-message {
            background: linear-gradient(45deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
            border: 2px solid var(--success);
            color: var(--success);
            padding: 1rem;
            border-radius: 10px;
            margin-bottom: 1rem;
            text-align: center;
            display: none;
        }

        .error-message {
            background: linear-gradient(45deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
            border: 2px solid var(--danger);
            color: var(--danger);
            padding: 1rem;
            border-radius: 10px;
            margin-bottom: 1rem;
            text-align: center;
            display: none;
        }
        /* Progress indicator */
        .progress-indicator {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: var(--gradient-1);
            z-index: 1001;
            transition: width 0.3s ease;
        }

        /* Back to top button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-1);
            color: white;
            border: none;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
        }

        footer {
            background-color: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
        }
        
        [data-theme="dark"] footer {
            background: linear-gradient(45deg, #0f172a 0%, #1e293b 100%);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .footer-logo {
            font-size: 1.8rem;
            font-weight: bold;
            margin-bottom: 1rem;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .footer-links h4 {
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.3s ease;
            position: relative;
            padding-left: 1rem;
        }

         .footer-links a::before {
            content: '→';
            position: absolute;
            left: 0;
            opacity: 0;
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: white;
            padding-left: 1.5rem;
        }

        .footer-links a:hover::before {
            opacity: 1;
        }

        .copyright {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #334155;
            text-align: center;
            color: #94a3b8;
        }

        @media (max-width: 768px) {

            .logo .full-logo-text {
                display: none; /* ซ่อนข้อความเต็ม */
            }

            .logo .short-logo-text {
                display: inline; /* แสดงข้อความสั้น */
            }
            
            .login-button{
                display: none;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .nav-links {
                display: none;
            }

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

            .hero h1 {
                font-size: 2rem;
            }
           
        }
    
/* Dark Mode Support */
/* comment code due make display error when using lightmode for darkmode browser
@media (prefers-color-scheme: dark) {
    body {
        background-color: #0f172a;
        color: #f8fafc;
    }
    header, .contact-info, .faq-section, .office-hours, footer, .map-overlay {
        background-color: #1e293b !important;
        color: #f8fafc;
    }
    .nav-links a, .info-content p, .section-subtitle, .footer-links a {
        color: #cbd5e1;
    }
    .footer-links a:hover {
        color: white;
    }
    .button, .submit-btn {
        background: var(--gradient-4);
    }
    .info-icon {
        background: var(--gradient-3);
    }
}
*/
/* Mobile First Adjustments */
body {
    font-size: 16px;
}
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}
@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}