/* ── 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 {
    max-width: 100%;
    height: auto;
}

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

/* ── Scroll Reveal (progressive enhancement) ─────── */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

/* Fallback: always visible if JS is disabled or prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .scroll-reveal {
        opacity: 1;
        transform: none;
    }
}

/* ── Navbar scroll state ──────────────────────────── */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(13, 14, 16, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

#navbar.scrolled .nav-link {
    color: rgba(255, 255, 255, 0.85);
}

#navbar.scrolled .nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

/* ── Button micro-interactions ────────────────────── */
a[href="#contact"] {
    position: relative;
}

/* ── Mobile menu transitions ──────────────────────── */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.25s ease;
    opacity: 0;
}

#mobileMenu.open {
    max-height: 400px;
    opacity: 1;
}

.mobile-link {
    display: block;
}

/* ── Custom scrollbar ─────────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1b1e;
}

::-webkit-scrollbar-thumb {
    background: #5c606a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #7a7e8a;
}

/* ── Selection color ──────────────────────────────── */
::selection {
    background: rgba(255, 107, 53, 0.3);
    color: #1a1b1e;
}

/* ── Focus visible ────────────────────────────────── */
:focus-visible {
    outline: 2px solid #ff6b35;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Touch device adjustments ─────────────────────── */
@media (hover: none) {
    .group:hover {
        transform: none;
    }

    .group:hover img {
        transform: none;
    }
}

/* ── Print styles ─────────────────────────────────── */
@media print {
    #navbar, .scroll-reveal {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 0.75rem;
        color: #666;
    }
}