:root {
            --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
            --dark: #0f0f23;
            --light: #ffffff;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
            --gray-700: #334155;
            --gray-800: #1e293b;
            --gray-900: #0f172a;
            --success: #10b981;
            --warning: #f59e0b;
            --error: #ef4444;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
            --blur-sm: 4px;
            --blur-md: 8px;
            --blur-lg: 16px;
        }

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

        body {
            font-family: 'Kanit', sans-serif;
            line-height: 1.6;
            color: var(--gray-800);
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            overflow-x: hidden;
        }

        /* Animated Background */
        .bg-animated {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            opacity: 0.03;
        }

        .bg-animated::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            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="%23ffffff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            animation: float 20s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            33% { transform: translateY(-10px) rotate(1deg); }
            66% { transform: translateY(5px) rotate(-1deg); }
        }
         /* Top Action Bar */
        .top-action-bar {
            background: var(--primary);
            padding: 0.75rem 0;
            position: relative;
            z-index: 1001;
        }

        .top-action-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 1.5rem;
        }

        .phone-info {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: white;
            font-weight: 500;
            font-size: 1rem;
        }

        .phone-info i {
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }

        .apply-button {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1.5rem;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-xl);
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .apply-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }

        .apply-button:hover::before {
            transform: translateX(0);
        }

        .apply-button:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }

        .apply-button i {
            animation: bounce 1s infinite alternate;
        }

        @keyframes bounce {
            0% { transform: translateY(0); }
            100% { transform: translateY(-3px); }
        }

        /* Modern Header */
        .modern-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(var(--blur-md));
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
            box-shadow: var(--shadow-sm);
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo-section img {
            height: auto;
            width: auto;
            /* border-radius: var(--radius-md); */
            /* box-shadow: var(--shadow-md); */
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            background: var(--primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gray-100);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gray-600);
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .social-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--primary);
            transform: scale(0);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: 50%;
        }

        .social-link:hover::before {
            transform: scale(1);
        }

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

        .social-link i {
            position: relative;
            z-index: 1;
            font-size: 1rem;
        }

        /* Hero Section */
        .hero-section {
            padding: 4rem 0 6rem;
            text-align: center;
            position: relative;
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            margin-bottom: 1rem;
            background: var(--primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            animation: slideUp 1s ease-out;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--gray-600);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            animation: slideUp 1s ease-out 0.2s both;
        }

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

        /* Modern Tabs */
        .tabs-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .tabs-nav {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }

        .tab-button {
            padding: 1rem 2rem;
            border: none;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(var(--blur-sm));
            border-radius: var(--radius-xl);
            font-size: 1.1rem;
            font-weight: 600;
            font-family: 'Kanit', sans-serif;
            color: var(--gray-700);
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

        .tab-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--primary);
            transform: translateX(-100%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .tab-button:hover::before,
        .tab-button.active::before {
            transform: translateX(0);
        }

        .tab-button:hover,
        .tab-button.active {
            color: white;
            transform: translateY(-2px);
            box-shadow: var(--shadow-xl);
        }

        .tab-button span {
            position: relative;
            z-index: 1;
        }

        /* Tab Content */
        .tab-content {
            display: none;
            animation: fadeInUp 0.5s ease-out;
        }

        .tab-content.active {
            display: block;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 3rem;
            background: var(--primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Modern Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .modern-card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(var(--blur-md));
            border-radius: var(--radius-xl);
            padding: 2rem;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }


        .modern-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        .modern-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-2xl);
        }

        .card-image {
            /* width: 100%; */
            height: 300px;
            border-radius: var(--radius-lg);
            object-fit: cover;
            margin-bottom: 1.5rem;
            transition: transform 0.3s ease;
        }
        .card-image-fac {
            /* width: 100%; */
            /* height: 250px; */
            border-radius: var(--radius-lg);
            object-fit: cover;
            margin-bottom: 1.5rem;
            transition: transform 0.3s ease;
            margin-left: auto;
            margin-right: auto;

        }

        #faculty .card-title {
            width: 100%;
            text-align: left;
        }

        #office .card-title {
            width: 100%;
            text-align: left;
        }

        .modern-card:hover .card-image {
            transform: scale(1.05);
        }

        .card-title-dek68 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--gray-800);
        }

        .card-title {
            /* font-size: 1.2rem; */
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--gray-800);
        }

        .card-links {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            width: 100%;
        }

        .card-link {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: var(--gray-50);
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--gray-700);
            transition: all 0.3s ease;
            border: 1px solid var(--gray-200);
        }

        .card-link:hover {
            background: var(--gray-100);
            transform: translateX(5px);
            box-shadow: var(--shadow-md);
        }

        .card-link i {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: white;
            flex-shrink: 0;
        }

        .card-link.facebook i {
            background: #1877f2;
        }

        .card-link.line i {
            background: #06c755;
        }

        /* QR Code Section */
        .qr-card {
            text-align: center;
        }

        .qr-code-container {
            background: white;
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--gray-200);
        }

        .qr-code-img {
            width: 200px;
            height: 200px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .qr-button {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 2rem;
            background: linear-gradient(135deg, #06c755 0%, #00b04f 100%);
            color: white;
            text-decoration: none;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 1.1rem;
            box-shadow: var(--shadow-lg);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .qr-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #05a848 0%, #009643 100%);
            transform: scale(0);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: var(--radius-xl);
        }

        .qr-button:hover::before {
            transform: scale(1);
        }

        .qr-button:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
        }

        .qr-button span {
            position: relative;
            z-index: 1;
        }

        /* Modern Footer */
        .modern-footer {
            background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 6rem;
            position: relative;
        }

        .modern-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: var(--primary);
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: var(--secondary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

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

        .footer-links a {
            color: var(--gray-300);
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }

        .footer-bottom {
            border-top: 1px solid var(--gray-700);
            padding-top: 2rem;
            text-align: center;
            color: var(--gray-400);
        }
        .footer-links-list {
            margin-top: 1.5rem;

        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
                padding: 0 1rem;
            }

            .hero-section {
                padding: 2rem 0 3rem;
            }

            .hero-container {
                padding: 0 1rem;
            }

            .tabs-container {
                padding: 0 1rem;
            }

            .tabs-nav {
                flex-direction: column;
                align-items: center;
            }

            .tab-button {
                width: 100%;
                max-width: 300px;
            }

            .cards-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                padding: 0 1rem;
            }

            .modern-card {
                padding: 1.5rem;
            }

            .footer-container {
                padding: 0 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* Loading Animation */
        .loading {
            opacity: 0;
            animation: fadeIn 0.5s ease-out forwards;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
            }
        }

        /* Scroll to Top Button */
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            background: var(--primary);
            border: none;
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-xl);
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
            transform: translateY(100px);
        }

        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .scroll-top:hover {
            transform: translateY(-3px);
        }

         /* Top Action Bar */
        .top-action-bar {
            background: var(--primary);
            padding: 0.75rem 0;
            position: relative;
            z-index: 1001;
        }

        .top-action-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 1.5rem;
        }

        .phone-info {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: white;
            font-weight: 500;
            font-size: 1rem;
        }

        .phone-info i {
            animation: pulse 2s infinite;
        }