/* Base */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 80px; }
    body { margin: 0; }
    img { max-width: 100%; height: auto; }

    /* Selection */
    ::selection { background: #15803d; color: #fefdf8; }

    /* Header */
    #site-header { background: transparent; }
    #site-header.scrolled {
        background: rgba(6, 36, 20, 0.95);
        backdrop-filter: blur(12px);
        box-shadow: 0 1px 0 rgba(255,255,255,0.08);
    }

    /* Nav link hover underline */
    .nav-link {
        position: relative;
    }
    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 1.5px;
        background: #86efac;
        transition: width 0.25s ease;
    }
    .nav-link:hover::after { width: 100%; }

    /* Mobile menu */
    #mobile-menu { animation: slideDown 0.25s ease; }
    @keyframes slideDown {
        from { opacity: 0; transform: translateY(-8px); }
        to { opacity: 1; transform: translateY(0); }
    }
    .mobile-link {
        position: relative;
        display: block;
    }

    /* Reveal animations */
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 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; }

    /* Button focus */
    button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
        outline: 2px solid #86efac;
        outline-offset: 2px;
    }

    /* Smooth image loading */
    img { background-color: rgb(253 249 237); }

    /* Custom scrollbar */
    ::-webkit-scrollbar { width: 8px; }
    ::-webkit-scrollbar-track { background: #0a361f; }
    ::-webkit-scrollbar-thumb { background: #1d7a45; border-radius: 4px; }
    ::-webkit-scrollbar-thumb:hover { background: #2d9b5c; }

    /* Form focus states */
    input:focus, select:focus, textarea:focus {
        box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.15);
    }

    /* Gallery grid responsive */
    @media (max-width: 767px) {
        .col-span-2 { grid-column: span 2; }
    }