/* ========== 1. CSS Variables ========== */
    :root {
        --primary: #0a4d8c;
        --primary-dark: #042449;
        --primary-light: #e8f2fb;
        --secondary: #1e3a5f;
        --accent: #2563eb;
        --accent-light: #60a5fa;
        --gold: #d4af37;
        --white: #ffffff;
        --gray-50: #f8fafc;
        --gray-100: #f1f5f9;
        --gray-200: #e2e8f0;
        --gray-300: #cbd5e1;
        --gray-400: #94a3b8;
        --gray-600: #475569;
        --gray-700: #334155;
        --gray-800: #1e293b;
        --text: #0f172a;
        --text-light: #64748b;
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
        --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);
        --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        --gradient-primary: linear-gradient(135deg, #0a4d8c 0%, #1e3a5f 100%);
        --gradient-accent: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
        --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f59e0b 100%);
        --gradient-green: linear-gradient(135deg, #059669 0%, #10b981 100%);
    }

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

    body {
        background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
        font-family: 'Prompt', 'Inter', system-ui, -apple-system, sans-serif;
        overflow-x: hidden;
    }

    /* ========== 2. Animation Keyframes ========== */
    @keyframes fadeInUp {
        from { opacity: 0; transform: translateY(40px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes fadeInLeft {
        from { opacity: 0; transform: translateX(-40px); }
        to { opacity: 1; transform: translateX(0); }
    }

    @keyframes fadeInRight {
        from { opacity: 0; transform: translateX(40px); }
        to { opacity: 1; transform: translateX(0); }
    }

    @keyframes scaleIn {
        from { opacity: 0; transform: scale(0.9); }
        to { opacity: 1; transform: scale(1); }
    }

    @keyframes float {
        0%, 100% { transform: translate(0, 0) rotate(0deg); }
        50% { transform: translate(30px, 20px) rotate(5deg); }
    }

    /* ========== 3. Animation Classes ========== */
    .animate-fade-up { animation: fadeInUp 0.8s ease forwards; }
    .animate-fade-left { animation: fadeInLeft 0.8s ease forwards; }
    .animate-fade-right { animation: fadeInRight 0.8s ease forwards; }
    .animate-scale { animation: scaleIn 0.6s ease forwards; }

    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    .delay-4 { animation-delay: 0.4s; }
    .delay-5 { animation-delay: 0.5s; }

    /* Scroll Reveal */
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .scroll-reveal.revealed { opacity: 1; transform: translateY(0); }

    .scroll-reveal-left {
        opacity: 0;
        transform: translateX(-30px);
        transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .scroll-reveal-left.revealed { opacity: 1; transform: translateX(0); }

    .scroll-reveal-right {
        opacity: 0;
        transform: translateX(30px);
        transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .scroll-reveal-right.revealed { opacity: 1; transform: translateX(0); }

    .scroll-reveal-scale {
        opacity: 0;
        transform: scale(0.95);
        transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .scroll-reveal-scale.revealed { opacity: 1; transform: scale(1); }

    /* ========== 4. Background Orbs ========== */
    .bg-orb {
        position: fixed;
        border-radius: 50%;
        filter: blur(80px);
        opacity: 0.3;
        z-index: 0;
        pointer-events: none;
    }

    .bg-orb-1 {
        width: 500px;
        height: 500px;
        background: radial-gradient(circle, var(--accent-light), transparent);
        top: -200px;
        right: -100px;
    }

    .bg-orb-2 {
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, var(--primary-light), transparent);
        bottom: -200px;
        left: -150px;
    }

    .bg-orb-3 {
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(212, 175, 55, 0.2), transparent);
        top: 40%;
        right: 10%;
    }

    /* ========== 5. Hero Section ========== */
    .hero-section {
        position: relative;
        background: var(--gradient-primary);
        padding: 60px 0 80px;
        overflow: hidden;
        z-index: 1;
    }

    .hero-section::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 80px;
        background: linear-gradient(to top, var(--gray-50), transparent);
        z-index: 2;
    }

    .hero-floating {
        position: absolute;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(255,255,255,0.08), transparent);
        border-radius: 50%;
        top: -150px;
        left: -100px;
        animation: float 20s infinite ease-in-out;
    }

    .hero-floating-2 {
        position: absolute;
        width: 200px;
        height: 200px;
        background: radial-gradient(circle, rgba(255,255,255,0.05), transparent);
        border-radius: 50%;
        bottom: -80px;
        right: 10%;
        animation: float 15s infinite ease-in-out reverse;
    }

    .hero-content {
        position: relative;
        z-index: 3;
        text-align: center;
        max-width: 800px;
        margin: 0 auto;
    }

    .hero-title {
        font-size: 3rem;
        font-weight: 700;
        color: var(--white);
        margin-bottom: 16px;
        letter-spacing: -0.02em;
        animation: fadeInUp 0.8s ease forwards;
        opacity: 0;
        animation-fill-mode: forwards;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        color: rgba(255,255,255,0.85);
        max-width: 650px;
        margin: 0 auto;
        line-height: 1.6;
        animation: fadeInUp 0.8s ease forwards;
        animation-delay: 0.1s;
        opacity: 0;
        animation-fill-mode: forwards;
    }

    /* ========== 6. Awards Section ========== */
    .awards-section {
        position: relative;
        padding: 60px 0 80px;
        z-index: 2;
    }

    .section-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .section-tag {
        display: inline-block;
        background: linear-gradient(135deg, var(--primary-light), rgba(37, 99, 235, 0.1));
        color: var(--primary);
        padding: 6px 16px;
        border-radius: 100px;
        font-size: 0.8rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 12px;
    }

    .section-title {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 16px;
    }

    .section-divider {
        width: 80px;
        height: 4px;
        background: var(--gradient-accent);
        margin: 0 auto;
        border-radius: 4px;
    }

    /* Awards Grid */
    .awards-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 30px;
        margin-bottom: 40px;
    }

    /* Award Card */
    .award-card {
        background: var(--white);
        border-radius: 28px;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
        border: 1px solid var(--gray-200);
        position: relative;
        height: 100%;
        cursor: pointer;
    }

    .award-card:hover {
        transform: translateY(-12px);
        box-shadow: var(--shadow-2xl);
    }

    .award-image-wrapper {
        position: relative;
        overflow: hidden;
        padding: 30px;
        background: linear-gradient(135deg, var(--gray-50), var(--white));
        text-align: center;
        cursor: pointer;
    }

    .award-image {
        width: 180px;
        height: 180px;
        object-fit: contain;
        transition: var(--transition);
        margin: 0 auto;
        display: block;
    }

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

    .zoom-icon {
        position: absolute;
        bottom: 20px;
        right: 20px;
        background: rgba(10, 77, 140, 0.8);
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white);
        font-size: 18px;
        opacity: 0;
        transition: var(--transition);
        backdrop-filter: blur(4px);
    }

    .award-card:hover .zoom-icon {
        opacity: 1;
    }

    .award-badge {
        position: absolute;
        top: 20px;
        right: 20px;
        background: var(--gradient-gold);
        color: var(--white);
        padding: 6px 14px;
        border-radius: 30px;
        font-size: 0.7rem;
        font-weight: 600;
        letter-spacing: 1px;
        z-index: 2;
    }

    .award-badge-green {
        background: var(--gradient-green);
    }

    .award-body {
        padding: 24px 28px 32px;
        text-align: center;
    }

    .award-title {
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
    }

    .award-year {
        display: inline-block;
        background: var(--primary-light);
        color: var(--primary);
        padding: 6px 20px;
        border-radius: 20px;
        font-size: 1.3rem; /* แก้ไข: ให้ตัวใหญ่เท่ากับหัวข้อการ์ดด้านบน */
        font-weight: 700;  /* แก้ไข: เพิ่มความหนาของตัวอักษรให้เท่ากัน */
        margin-bottom: 16px;
    }

    /* ========== 7. Lightbox Modal ========== */
    .lightbox-modal {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.95);
        z-index: 1000;
        cursor: pointer;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .lightbox-modal.active {
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 1;
    }

    .lightbox-content {
        max-width: 90%;
        max-height: 90%;
        position: relative;
        animation: zoomIn 0.3s ease;
    }

    @keyframes zoomIn {
        from {
            transform: scale(0.8);
            opacity: 0;
        }
        to {
            transform: scale(1);
            opacity: 1;
        }
    }

    .lightbox-image {
        max-width: 100%;
        max-height: 80vh;
        object-fit: contain;
        border-radius: 16px;
        box-shadow: var(--shadow-2xl);
    }

    .lightbox-caption {
        position: absolute;
        bottom: -50px;
        left: 0;
        right: 0;
        text-align: center;
        color: var(--white);
        font-size: 1rem;
        padding: 12px;
        background: rgba(0, 0, 0, 0.7);
        border-radius: 12px;
        backdrop-filter: blur(8px);
    }

    .lightbox-close {
        position: absolute;
        top: 20px;
        right: 30px;
        color: var(--white);
        font-size: 40px;
        font-weight: bold;
        cursor: pointer;
        transition: var(--transition);
        z-index: 1001;
        width: 50px;
        height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: rgba(255,255,255,0.1);
    }

    .lightbox-close:hover {
        background: rgba(255,255,255,0.2);
        transform: scale(1.1);
    }

    .lightbox-prev,
    .lightbox-next {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        color: var(--white);
        font-size: 40px;
        cursor: pointer;
        transition: var(--transition);
        width: 50px;
        height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: rgba(255,255,255,0.1);
    }

    .lightbox-prev {
        left: 30px;
    }

    .lightbox-next {
        right: 30px;
    }

    .lightbox-prev:hover,
    .lightbox-next:hover {
        background: rgba(255,255,255,0.2);
        transform: translateY(-50%) scale(1.1);
    }

    /* ========== 8. Floating CTA ========== */
    .floating-cta {
        position: fixed;
        bottom: 30px;
        right: 30px;
        z-index: 100;
    }

    .cta-button {
        width: 56px;
        height: 56px;
        background: var(--gradient-primary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white);
        font-size: 24px;
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
        cursor: pointer;
        border: none;
        text-decoration: none;
    }

    .cta-button:hover {
        transform: scale(1.1);
        box-shadow: var(--shadow-2xl);
    }

    /* ========== 9. Responsive ========== */
    @media (max-width: 991px) {
        .hero-title { font-size: 2rem; }
        .hero-section { padding: 50px 0 70px; }
        .section-title { font-size: 1.5rem; }
        .award-image { width: 150px; height: 150px; }
        .award-title { font-size: 1.2rem; }
        .award-year { font-size: 1.2rem; } /* แก้ไข: ย่อตามขนาดหัวข้อบนแท็บเล็ต */
        .award-body { padding: 20px 24px 28px; }
        .lightbox-prev, .lightbox-next { font-size: 30px; width: 40px; height: 40px; }
        .lightbox-close { font-size: 30px; width: 40px; height: 40px; top: 15px; right: 20px; }
    }

    @media (max-width: 767px) {
        .hero-section { padding: 40px 0 60px; }
        .hero-title { font-size: 1.4rem; }
        .hero-subtitle { font-size: 0.9rem; }
        .awards-section { padding: 40px 0 60px; }
        .awards-grid { gap: 20px; }
        .award-image { width: 120px; height: 120px; }
        .award-image-wrapper { padding: 20px; }
        .award-badge { top: 12px; right: 12px; padding: 4px 10px; font-size: 0.6rem; }
        .zoom-icon { width: 30px; height: 30px; font-size: 14px; bottom: 12px; right: 12px; }
        .award-title { font-size: 1.1rem; }
        .award-year { font-size: 1.1rem; } /* แก้ไข: ย่อตามขนาดหัวข้อบนมือถือ */
        .award-description { font-size: 0.85rem; }
        .award-body { padding: 16px 20px 24px; }
        .lightbox-prev, .lightbox-next { font-size: 24px; width: 35px; height: 35px; }
        .lightbox-prev { left: 15px; }
        .lightbox-next { right: 15px; }
        .lightbox-close { font-size: 24px; width: 35px; height: 35px; top: 10px; right: 15px; }
        .lightbox-caption { font-size: 0.8rem; bottom: -40px; }
        .floating-cta { bottom: 20px; right: 20px; }
        .cta-button { width: 48px; height: 48px; font-size: 20px; }
    }

    @media (max-width: 480px) {
        .hero-title { font-size: 1.2rem; }
        .award-image { width: 100px; height: 100px; }
        .lightbox-caption { font-size: 0.7rem; bottom: -35px; }
    }