/* Mobile Styles - Chỉ áp dụng cho màn hình <= 768px */
@media screen and (max-width: 768px) {
    /* Reset some base styles for mobile */
    body {
        font-size: 14px;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

    /* Header & Navbar */
    header {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 1000;
        background-color: #fff;
        height: 80px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .navbar {
        padding: 0;
        width: 100%;
        height: 80px;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
    }

    /* Logo */
    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        height: 80px;
        margin: 0;
        animation: fadeIn 1s ease-in;
        display: flex;
        align-items: center;
    }

    .logo img {
        max-height: 70px;
        width: auto;
        display: block;
        margin: 0;
        padding: 0;
    }

    /* Navigation Container */
    .nav-container {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        padding: 80px 20px 20px;
        transition: all 0.3s ease;
        z-index: 1000;
        display: flex;
        flex-direction: column;
        align-items: center;
        backdrop-filter: blur(5px);
    }

    .nav-container.active {
        right: 0;
    }

    /* Navigation Links */
    .nav-links {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 30px;
        margin-bottom: 30px;
        width: 100%;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 15px;
        font-size: 18px;
        color: #000;
        text-decoration: none;
        transition: all 0.3s ease;
        font-weight: 500;
    }

    /* Hero Section */
    #hero {
        height: 100%;
        margin-top: -59px;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 73px;
    }

    #hero .hero-content {
        padding: 20px;
    }

    #hero .hero-content h1 {
        font-size: 22px;
        letter-spacing: 2px;
        margin-bottom: 9px;
    }

    /* Button Collection */
    .cta-button,
    .index-page .cta-button {
        padding: 8px 15px;
        font-size: 8px;
        letter-spacing: 2px;
        background: transparent;
        border: 2px solid #000;
        color: #000;
        cursor: pointer;
        transition: all 0.3s ease;
        text-transform: uppercase;
        font-weight: 500;
    }

    .cta-button:hover,
    .cta-button:active {
        background: #000;
        color: #fff;
    }

    /* Menu Toggle Button */
    .menu-toggle {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        cursor: pointer;
        z-index: 1001;
    }

    .menu-toggle span {
        width: 100%;
        height: 2px;
        background-color: #000;
        transition: all 0.3s ease;
        border-radius: 2px;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }

    /* Text Section */
    .text-section {
        padding: 26px 3px;
        text-align: center;
    }

    .text-section h1 {
        font-size: 18px;
        letter-spacing: 6px;
        line-height: 1.6;
        margin: 0;
    }

    /* Model Section */
    .model {
        padding: 20px;
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .left-column,
    .right-column {
        width: 100%;
    }

    /* Images */
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    /* Footer */
    footer {
        padding: 0;
        width: 100%;
        margin: 0;
    }

    .footer-content {
        display: flex;
        flex-direction: column;
        width: 100%;
        margin: 0;
    }

    .footer-info {
        text-align: left;
        width: 100%;
        padding: 14px;
        margin-top: -24px;
        margin-left: -23px;
    }

    .footer-info h1 {
        font-size: 14px;
        margin: 8px 0;
        font-weight: 400;
        color: #fff;
        letter-spacing: 1px;
    }

    .designer-credit {
        font-size: 10px;
        padding: 22px 17px;
        opacity: 0.8;
        letter-spacing: 1px;
        margin-right: -33px;
    }

    /* Social Icons */
    .social-icons {
        display: flex;
        justify-content: space-around;
        align-items: center;
        gap: 30px;
        margin: 15px 0;
        padding: 15px 30px;
    }

    .social-icon {
        text-decoration: none !important;
        color: #333;
        font-size: 22px;
        width: 45px;
        height: 45px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: transform 0.3s ease, color 0.3s ease;
        position: relative;
    }

    .social-icon:hover {
        transform: translateY(-3px);
    }

    .social-icon i {
        text-decoration: none !important;
    }

    /* Specific colors for each social icon */
    .social-icon .fa-facebook {
        color: #1877f2;
    }

    .social-icon .fa-instagram {
        background: -webkit-linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .social-icon .fa-tiktok {
        color: #000;
    }

    .social-icon .fa-phone {
        color: #28a745;
    }

    /* Remove nav-container duplicate styles */
    .nav-container .social-icons {
        border-top: 1px solid rgba(0,0,0,0.1);
        margin: 20px 0;
    }

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

    /* tablet */
    @media (min-width: 768px) and (max-width: 1024px) {
        .text-section h1 {
            font-size: 22px;
            letter-spacing: 15px;
            color: #333;
            position: relative;
            padding: 13px 37px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }
        ul.nav-links {
            display: flex;
            justify-content: center;
            padding-left: 350px;
            font-size: 19px;
        }
        .about-images {
            flex: 117px;
            display: flex;
            position: relative;
            margin-top: -15px;
            flex-direction: column;
            align-items: center;
        }

        .img_about2, .img_about2_2 {
            width: 75%;
            height: 480px;
            object-fit: cover;
            border-radius: 10px;
            position: relative;
        }
        .img_about2_2 {
            margin-top: 0px;
        }
        .about-section-2 {
            padding: 60px 30px;
        }

        .about-text-2 {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 20px;
            font-size: 17px;
        }

        .main-title-2 {
            font-size: 2em;
        }
    }
}
/*button collection*/
.index-page .cta-button {
    padding: 8px 15px;
    font-size: 8px;
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.3sease;
}

.page-title {
    font-size: 45px;
    margin-bottom: 10px;
    margin-top: -19px;
    padding: inherit;
}