*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', sans-serif;
    margin: 0;
    background-color: #121212;
    color: #E0E0E0;
}

body.no-scroll {
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #1F1F1F;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #333;
    position: relative;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
}

.logo .site-name {
    font-size: 1.8em;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    margin-left: 15px;
}

.main-nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
}

.main-nav li {
    margin-left: 25px;
}

.main-nav a {
    text-decoration: none;
    color: #E0E0E0;
    font-size: 1.1em;
    font-weight: 400;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.main-nav a:hover {
    background-color: #FF4081;
    color: #FFFFFF;
}

.section-title {
    font-size: 2.2em;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 30px;
    border-left: 5px solid #FF4081;
    padding-left: 15px;
}

.content-grid {
    display: grid;
    gap: 25px;
}

.two-columns {
    grid-template-columns: repeat(2, 1fr);
}

.four-columns {
    grid-template-columns: repeat(4, 1fr);
}

.content-block {
    background-color: #1F1F1F;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.content-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(255, 64, 129, 0.2);
}

.content-block img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.content-block .block-description {
    padding: 15px;
    flex-grow: 1;
}

.content-block h3 {
    margin: 0 0 10px 0;
    font-size: 1.2em;
    color: #FFFFFF;
}

.content-block p {
    margin: 0;
    font-size: 0.9em;
    line-height: 1.6;
    color: #BDBDBD;
}

.separator {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(51, 51, 51, 0), rgba(51, 51, 51, 0.75), rgba(51, 51, 51, 0));
    margin: 50px 0;
}

footer {
    background-color: #1F1F1F;
    text-align: center;
    padding: 30px 20px;
    margin-top: 30px;
    border-top: 2px solid #333;
}

.footer-description {
    font-size: 0.9em;
    color: #BDBDBD;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto 20px auto;
}

.copyright {
    font-size: 0.9em;
    color: #757575;
}

.hamburger-menu {
    display: none;
}

.hamburger-line {
    width: 2rem;
    height: 0.25rem;
    background-color: #FFFFFF;
    border-radius: 10px;
    transition: all 0.3s ease-in-out;
}


/* --- Responsive Styles Start Here --- */

/* Tablet View */
@media (max-width: 992px) {
    .four-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile View */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
    }

    .hamburger-menu {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 2rem;
        height: 2rem;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 10;
    }

    .hamburger-menu.is-active .hamburger-line:nth-child(1) {
        transform: translateY(11px) rotate(45deg);
    }

    .hamburger-menu.is-active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger-menu.is-active .hamburger-line:nth-child(3) {
        transform: translateY(-11px) rotate(-45deg);
    }

    .main-nav ul {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background-color: rgba(31, 31, 31, 0.95);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
    
    .main-nav ul.is-active {
        display: flex;
    }

    .main-nav li {
        margin: 2rem 0;
    }

    .main-nav a {
        font-size: 1.5rem;
    }
    
    .two-columns {
        grid-template-columns: 1fr;
    }

    .secondary-content .four-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Small Mobile View */
@media (max-width: 576px) {
    .logo .site-name {
        font-size: 1.5em;
    }
    .section-title {
        font-size: 1.8em;
    }

}

.close-menu-item {
    display: none; 
}

@media (max-width: 768px) {
    .main-nav ul.is-active .close-menu-item {
        display: block;
        position: absolute;
        top: 1rem;
        right: 20px;
    }

    #close-menu-button {
        background: none;
        border: none;
        color: #FFFFFF;
        font-size: 2.5rem; 
        font-weight: 300;
        cursor: pointer;
        line-height: 1;
        padding: 0.5rem;
    }
}

a.content-link {
    color: inherit;
    text-decoration: none; 
}