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

    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
        line-height: 1.6;
        color: #333;
        overflow-x: hidden;
    }

    /* Navigation */
    nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        padding: 1rem 5%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .logo {
        display: flex;
        flex-direction: column;
        line-height: 1.2;
    }

    .logo a {
    text-decoration: none;
    }

    .logo-main {
        font-size: 1.5rem;
        font-weight: 700;
        color: #111D29;
    }

    .logo-sub {
        font-size: 0.75rem;
        font-weight: 400;
        color: #666;
        letter-spacing: 0.5px;
    }

    .nav-links {
        display: flex;
        gap: 2.5rem;
        list-style: none;
    }

    .nav-links a {
        color: #1a1a1a;
        text-decoration: none;
        font-weight: 500;
        font-size: 0.95rem;
        transition: all 0.3s;
        position: relative;
    }

    .nav-links a::after {
        content: '';
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 0;
        height: 2px;
        background: #0066ff;
        transition: width 0.3s;
    }

.nav-links a:hover {
        color: #0066ff;
    }

    .nav-links a:hover::after {
        width: 100%;
    }



    /* Hero Section */

    .hero {
        height: 100vh;
        background: linear-gradient(135deg, #111D29 0%, #004a99 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        color: white;
        position: relative;
        overflow: hidden;
    }

    .hero-video {
        position: absolute;
        top: 50%;
        left: 50%;
        min-width: 100%;
        min-height: 100%;
        width: auto;
        height: auto;
        transform: translate(-50%, -50%);
        object-fit: cover;
        z-index: 0;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 102, 204, 0.6);
        z-index: 1;
    }

    @keyframes moveBackground {
        0% { transform: translate(0, 0); }
        100% { transform: translate(50px, 50px); }
    }

    .hero::before {
        content: '';
        position: absolute;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
        background-size: 50px 50px;
        animation: moveBackground 20s linear infinite;
    }

    @keyframes moveBackground {
        0% { transform: translate(0, 0); }
        100% { transform: translate(50px, 50px); }
    }

    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 900px;
        padding: 2rem;
        animation: fadeInUp 1s ease-out;
    }

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

    .hero h1 {
        font-size: 3rem;
        margin-bottom: 1rem;
        font-weight: 700;
        line-height: 1.2;
    }

    .hero p {
        font-size: 1.3rem;
        margin-bottom: 2.5rem;
        opacity: 0.95;
    }

    .cta-buttons {
        display: flex;
        gap: 1rem;
        justify-content: center;
        flex-wrap: wrap;
    }

    .btn {
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
        border: none;
        border-radius: 50px;
        cursor: pointer;
        transition: all 0.3s;
        text-decoration: none;
        display: inline-block;
        font-weight: 600;
    }

    .btn-primary {
        background: white;
        color: #111D29;
    }

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    }

    .btn-secondary {
        background: transparent;
        color: white;
        border: 2px solid white;
    }

    .btn-secondary:hover {
        background: white;
        color: #111D29;
    }

    /* Section Common Styles */
    section {
        padding: 5rem 5%;
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s ease-out;
    }

    section.visible {
        opacity: 1;
        transform: translateY(0);
    }

    .section-title {
        text-align: center;
        font-size: 2.5rem;
        margin-bottom: 1rem;
        color: #111D29;
        font-weight: 700;
    }

    .section-subtitle {
        text-align: center;
        font-size: 1.2rem;
        color: #666;
        margin-bottom: 3rem;
    }

    /* Space Section */
    .space-section {
        background: #f8f9fa;
    }

    .space-cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        max-width: 1200px;
        margin: 0 auto;
    }

    .space-card {
        background: white;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .space-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 40px rgba(0,102,204,0.2);
    }

    .space-card-content {
        padding: 2rem;
    }

    /* Image Slider */
    .image-slider {
        position: relative;
        width: 100%;
        height: 250px;
        overflow: hidden;
        background: #f0f0f0;
    }

    .slider-track {
        display: flex;
        transition: transform 0.5s ease-in-out;
        height: 100%;
    }

    .slide {
        min-width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 3rem;
        color: rgba(255,255,255,0.9);
        font-weight: 700;
        cursor: pointer;
        transition: transform 0.3s;
    }

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

  .slide-a1 {
      background: url('./room/image-a1.jpg') center/cover no-repeat;
  }
  .slide-a2 {
      background: url('./room/image-a2.jpg') center/cover no-repeat;
  }
  .slide-a3 {
      background: url('./room/image-a3.jpg') center/cover no-repeat;
  }
  .slide-b1 {
      background: url('./room/image-b1.jpg') center/cover no-repeat;
  }
  .slide-b2 {
      background: url('./room/image-b2.jpg') center/cover no-repeat;
  }
  .slide-b3 {
      background: url('./room/image-b3.jpg') center/cover no-repeat;
  }
  .slide-c1 {
      background: url('./room/image-c1.jpg') center/cover no-repeat;
  }
  .slide-c2 {
      background: url('./room/image-c2.jpg') center/cover no-repeat;
  }
  .slide-c3 {
      background: url('./room/image-c3.jpg') center/cover no-repeat;
  }

    .slider-controls {
        position: absolute;
        bottom: 15px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        gap: 10px;
        z-index: 20;
    }

    .slider-dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: rgba(255,255,255,0.5);
        cursor: pointer;
        transition: all 0.3s;
        border: 2px solid transparent;
    }

    .slider-dot:hover {
        background: rgba(255,255,255,0.8);
        transform: scale(1.2);
    }

    .slider-dot.active {
        background: white;
        border-color: rgba(0,102,204,0.5);
    }

    .slider-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background: rgba(255,255,255,0.8);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.3s;
        z-index: 20;
        font-size: 1.2rem;
        color: #111D29;
        font-weight: bold;
        user-select: none;
    }

    .slider-arrow:hover {
        background: white;
        box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    }

    .slider-arrow.prev {
        left: 10px;
    }

    .slider-arrow.next {
        right: 10px;
    }

    .space-card-content h3 {
        font-size: 1.8rem;
        color: #111D29;
        margin-bottom: 0.5rem;
    }

    .space-size {
        color: #999;
        margin-bottom: 1rem;
    }

    .space-features {
        list-style: none;
        margin: 1.5rem 0;
    }

    .space-features li {
        padding: 0.5rem 0;
        color: #555;
        position: relative;
        padding-left: 1.5rem;
    }

    .space-features li::before {
        content: '✓';
        position: absolute;
        left: 0;
        color: #111D29;
        font-weight: bold;
    }

    .price {
        font-size: 1.8rem;
        color: #111D29;
        font-weight: 700;
        margin-top: 1.5rem;
    }

    .price-unit {
        font-size: 1rem;
        color: #666;
    }

    /* Facility Section */
    .facility-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        max-width: 1200px;
        margin: 0 auto;
    }

    .facility-item {
        text-align: center;
        padding: 2rem;
        background: white;
        border-radius: 10px;
        box-shadow: 0 3px 15px rgba(0,0,0,0.08);
        transition: all 0.3s;
    }

    .facility-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0,102,204,0.15);
    }

    .facility-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }

    .facility-item h3 {
        color: #111D29;
        margin-bottom: 0.5rem;
    }

    /* Program Section */
    .program-section {
        background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    }

    .program-table {
        max-width: 1000px;
        margin: 2rem auto;
        background: white;
        border-radius: 15px;
        overflow: hidden;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    }

    .program-table table {
        width: 100%;
        border-collapse: collapse;
    }

    .program-table th {
        background: #111D29;
        color: white;
        padding: 1.2rem;
        text-align: left;
        font-weight: 600;
    }

    .program-table td {
        padding: 1.2rem;
        border-bottom: 1px solid #e9ecef;
    }

    .program-table tr:last-child td {
        border-bottom: none;
    }

    .program-table tr:hover {
        background: #f8f9fa;
    }

    .program-target {
        background: #e7f3ff;
        padding: 1.5rem;
        border-radius: 10px;
        margin: 2rem auto;
        max-width: 1000px;
        text-align: center;
    }

    .program-target strong {
        color: #111D29;
    }

    /* Contact Section */
    .contact-section {
        background: #111D29;
        color: white;
    }

    .contact-section .section-title {
        color: white;
    }

    .contact-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        max-width: 1000px;
        margin: 2rem auto;
    }

    .contact-item {
        background: rgba(255,255,255,0.1);
        padding: 2rem;
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    .contact-item h3 {
        margin-bottom: 1rem;
        font-size: 1.3rem;
    }

    .contact-item p {
        font-size: 1.1rem;
        line-height: 1.8;
    }

    /* Footer */
    footer {
        background: #001a33;
        color: white;
        text-align: center;
        padding: 2rem;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .hero h1 {
            font-size: 2rem;
        }

        .hero p {
            font-size: 1rem;
        }

        .section-title {
            font-size: 2rem;
        }

        .nav-links {
            display: none;
        }

        section {
            padding: 3rem 5%;
        }

        .program-table {
            overflow-x: auto;
        }
    }

    /* Scroll indicator */
    .scroll-indicator {
        position: absolute;
        bottom: 30px;
        left: 50%;
        transform: translateX(-50%);
        animation: bounce 2s infinite;
    }

    @keyframes bounce {
        0%, 20%, 50%, 80%, 100% {
            transform: translateX(-50%) translateY(0);
        }
        40% {
            transform: translateX(-50%) translateY(-10px);
        }
        60% {
            transform: translateX(-50%) translateY(-5px);
        }
    }

    .scroll-indicator::after {
        content: '↓';
        font-size: 2rem;
        color: white;
    }

    /* Modal */
    .modal {
        display: none;
        position: fixed;
        z-index: 2000;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.7);
        animation: fadeIn 0.3s ease-out;
    }

    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

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

    .modal-content {
        background-color: white;
        border-radius: 15px;
        width: 90%;
        max-width: 800px;
        max-height: 90vh;
        overflow: hidden;
        box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
        animation: slideUp 0.3s ease-out;
        position: relative;
    }

    @keyframes slideUp {
        from {
            transform: translateY(50px);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }

    .modal-header {
        background: linear-gradient(135deg, #111D29 0%, #004a99 100%);
        color: white;
        padding: 1.5rem 2rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .modal-header h2 {
        margin: 0;
        font-size: 1.5rem;
    }

    .modal-close {
        background: none;
        border: none;
        color: white;
        font-size: 2rem;
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: background 0.3s;
    }

    .modal-close:hover {
        background: rgba(255, 255, 255, 0.2);
    }

    .modal-body {
        padding: 2rem;
    }

    .map-container {
        width: 100%;
        height: 450px;
        border-radius: 10px;
        overflow: hidden;
        margin-bottom: 1.5rem;
    }

    .map-container iframe {
        width: 100%;
        height: 100%;
        border: 0;
    }

    .address-info {
        background: #f8f9fa;
        padding: 1.5rem;
        border-radius: 10px;
        border-left: 4px solid #111D29;
    }

    .address-info h3 {
        color: #111D29;
        margin-bottom: 0.5rem;
        font-size: 1.2rem;
    }

    .address-info p {
        margin: 0.5rem 0;
        color: #555;
        line-height: 1.8;
    }

    @media (max-width: 768px) {
        .modal-content {
            width: 95%;
            max-height: 95vh;
        }

        .modal-body {
            padding: 1.5rem;
        }

        .map-container {
            height: 300px;
        }
    }

    /* Image Modal */
    .image-modal {
        display: none;
        position: fixed;
        z-index: 3000;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.9);
        animation: fadeIn 0.3s ease-out;
    }

    .image-modal.active {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .image-modal-content {
        position: relative;
        max-width: 90%;
        max-height: 90vh;
        animation: zoomIn 0.3s ease-out;
    }

    @keyframes zoomIn {
        from {
            transform: scale(0.7);
            opacity: 0;
        }
        to {
            transform: scale(1);
            opacity: 1;
        }
    }

    .image-modal-content img {
        width: 100%;
        height: 100%;
        object-fit: contain;
        border-radius: 10px;
        box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    }

    .image-modal-close {
        position: absolute;
        top: -60px;
        right: 0;
        background: white;
        border: none;
        color: #333;
        font-size: 2rem;
        cursor: pointer;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s;
    }

    .image-modal-close:hover {
        background: #111D29;
        color: white;
        transform: rotate(90deg);
    }

    .image-modal-title {
        position: absolute;
        bottom: -60px;
        left: 0;
        right: 0;
        text-align: center;
        color: white;
        font-size: 1.3rem;
        font-weight: 600;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .hero h1 {
            font-size: 2.2rem;
        }

        .hero p {
            font-size: 1rem;
        }

        .section-title {
            font-size: 2rem;
        }

        .nav-links {
            display: none;
        }

        section {
            padding: 4rem 5%;
        }

        .program-table {
            overflow-x: auto;
        }

        .modal-content {
            width: 95%;
        }

        .modal-body {
            padding: 1.5rem;
        }

        .map-container {
            height: 300px;
        }

        .image-modal-close {
            top: 10px;
            right: 10px;
            width: 40px;
            height: 40px;
            font-size: 1.5rem;
        }

        .image-modal-title {
            bottom: 10px;
            font-size: 1rem;
        }
    }

    /* Scroll indicator */
    .scroll-indicator {
        position: absolute;
        bottom: 40px;
        left: 50%;
        transform: translateX(-50%);
        animation: bounce 2s infinite;
    }

    @keyframes bounce {
        0%, 20%, 50%, 80%, 100% {
            transform: translateX(-50%) translateY(0);
        }
        40% {
            transform: translateX(-50%) translateY(-10px);
        }
        60% {
            transform: translateX(-50%) translateY(-5px);
        }
    }

    .scroll-indicator::after {
        content: '↓';
        font-size: 2rem;
        color: rgba(255,255,255,0.7);
    }