/* ===== Reset & Base ===== */
    *, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

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

    body {
        overflow-x: hidden;
    }

    img {
        display: block;
        max-width: 100%;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    /* ===== Hero ===== */
    .hero-bg {
        will-change: transform;
    }

    .hero-overlay {
        background: linear-gradient(
            to bottom,
            rgba(48, 17, 27, 0.55) 0%,
            rgba(48, 17, 27, 0.45) 40%,
            rgba(48, 17, 27, 0.70) 100%
        );
    }

    /* ===== Scroll Indicator ===== */
    @keyframes scrollLine {
        0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
        50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
        51% { transform-origin: bottom; }
        100% { transform: scaleY(0); transform-origin: bottom; opacity: 1; }
    }

    .animate-scroll-line {
        animation: scrollLine 1.8s ease-in-out infinite;
    }

    /* ===== Navigation ===== */
    .nav-link {
        position: relative;
    }

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

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

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

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

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

    #mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.1s; }
    #mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.2s; }
    #mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.3s; }
    #mobile-menu.active .mobile-link:nth-child(4) { transition-delay: 0.4s; }

    /* ===== Menu Toggle ===== */
    #menu-toggle.active .menu-line:nth-child(1) {
        transform: rotate(45deg) translate(3px, 3px);
    }

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

    /* ===== Collection Cards ===== */
    .collection-card {
        position: relative;
    }

    .collection-card::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background-color: #ff9800;
        transition: width 0.4s ease;
    }

    .collection-card:hover::after {
        width: 100%;
    }

    /* ===== Divider Line ===== */
    .divider-line {
        transition-delay: 0.2s;
    }

    /* ===== Reveal Animations ===== */
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

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

    /* ===== Hero Animations ===== */
    @media (prefers-reduced-motion: no-preference) {
        .hero-subtitle {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
        }

        .hero-title {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease 0.5s, transform 0.8s ease 0.5s;
        }

        .hero-divider {
            opacity: 0;
            transform: scaleY(0);
            transition: opacity 0.6s ease 0.8s, transform 0.6s ease 0.8s;
            transform-origin: center;
        }

        .hero-description {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.8s ease 1s, transform 0.8s ease 1s;
        }

        .hero-cta {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.8s ease 1.2s, transform 0.8s ease 1.2s;
        }

        .hero-subtitle.hero-in,
        .hero-title.hero-in,
        .hero-divider.hero-in,
        .hero-description.hero-in,
        .hero-cta.hero-in {
            opacity: 1;
            transform: translateY(0) scaleY(1);
        }
    }

    /* ===== Button Focus ===== */
    .btn-primary:focus-visible,
    .btn-secondary:focus-visible {
        outline: 2px solid #ff9800;
        outline-offset: 2px;
    }

    /* ===== Selection ===== */
    ::selection {
        background-color: rgba(255, 152, 0, 0.3);
        color: #30111b;
    }

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

    ::-webkit-scrollbar-track {
        background: #fdf4f6;
    }

    ::-webkit-scrollbar-thumb {
        background: #c46888;
        border-radius: 3px;
    }

    ::-webkit-scrollbar-thumb:hover {
        background: #a34566;
    }