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

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

    body {
        margin: 0;
        overflow-x: hidden;
    }

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

    ::selection {
        background: #7B2D3B;
        color: #FDF8F6;
    }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar {
        width: 6px;
    }
    ::-webkit-scrollbar-track {
        background: #FDF8F6;
    }
    ::-webkit-scrollbar-thumb {
        background: #dd7687;
        border-radius: 3px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #7B2D3B;
    }

    /* ===== Navbar ===== */
    #navbar {
        background: transparent;
        border-bottom: 1px solid transparent;
    }

    #navbar.scrolled {
        background: rgba(253, 248, 246, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(123, 45, 59, 0.08);
        box-shadow: 0 1px 0 rgba(123, 45, 59, 0.05);
    }

    /* ===== Mobile Menu ===== */
    #mobile-menu.open {
        transform: translateX(0);
    }

    .mobile-nav-link {
        opacity: 0;
        transform: translateY(16px);
        transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
    }

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

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

    /* ===== Hero Floating Cards ===== */
    .floating-card {
        animation: float 6s ease-in-out infinite;
    }

    .floating-card:nth-child(2) {
        animation-delay: -2s;
    }

    .floating-card:nth-child(3) {
        animation-delay: -4s;
    }

    @keyframes float {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-12px); }
    }

    /* ===== Scroll Indicator ===== */
    @keyframes scrollDot {
        0% { top: 0; opacity: 1; }
        100% { top: 48px; opacity: 0; }
    }

    .scroll-dot {
        animation: scrollDot 1.5s ease-in-out infinite;
    }

    /* ===== Space Cards ===== */
    .space-card {
        transform: translateY(0);
        transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.5s ease;
    }

    .space-card:hover {
        transform: translateY(-6px);
    }

    /* ===== Intersection Observer Animations ===== */
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }

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

    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1px;
        background: #7B2D3B;
        transition: width 0.3s ease;
    }

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

    /* ===== Form Select ===== */
    select {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237B2D3B' stroke-width='1.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 0 center;
        padding-right: 2rem;
    }

    /* ===== Responsive ===== */
    @media (max-width: 767px) {
        .font-serif {
            font-size: clamp(1.75rem, 5vw, 2.5rem);
        }
    }