/* ===== Base & Utilities ===== */
    *, *::before, *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        overflow-x: hidden;
    }

    ::selection {
        background: #5EEAD4;
        color: #0A2342;
    }

    /* ===== Scroll Reveal ===== */
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    /* ===== Navbar ===== */
    #navbar {
        background: transparent;
        backdrop-filter: none;
    }

    #navbar.scrolled {
        background: rgba(250, 250, 248, 0.92);
        backdrop-filter: blur(20px);
        box-shadow: 0 1px 0 rgba(10, 35, 66, 0.06);
    }

    .nav-link {
        position: relative;
    }

    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1px;
        background: #5EEAD4;
        transition: width 0.3s ease;
    }

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

    /* ===== Mobile Menu ===== */
    #mobile-menu.open {
        opacity: 1;
        pointer-events: all;
    }

    #mobile-menu .mobile-link {
        opacity: 0;
        transform: translateY(10px);
        transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
    }

    #mobile-menu.open .mobile-link {
        opacity: 1;
        transform: translateY(0);
    }

    #mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
    #mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
    #mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
    #mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

    /* ===== Menu Toggle ===== */
    #menu-toggle.active .menu-line:nth-child(1) {
        transform: rotate(45deg);
        top: 4px;
    }

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

    #menu-toggle.active .menu-line:nth-child(3) {
        transform: rotate(-45deg);
        width: 24px;
    }

    /* ===== Image Hover ===== */
    .aspect-\[3\/4\] img,
    .aspect-\[4\/5\] img {
        transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .aspect-\[3\/4\]:hover img,
    .aspect-\[4\/5\]:hover img {
        transform: scale(1.03);
    }

    /* ===== Schedule Row Hover ===== */
    .border-b:hover {
        padding-left: 8px;
    }

    /* ===== Custom Scrollbar ===== */
    ::-webkit-scrollbar {
        width: 6px;
    }

    ::-webkit-scrollbar-track {
        background: #FAFAF8;
    }

    ::-webkit-scrollbar-thumb {
        background: #5EEAD4;
        border-radius: 3px;
    }

    ::-webkit-scrollbar-thumb:hover {
        background: #3ECDB0;
    }

    /* ===== Focus Styles ===== */
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid #5EEAD4;
        outline-offset: 4px;
        border-radius: 2px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 768px) {
        .reveal {
            transform: translateY(20px);
        }
    }