/* ─────────────────────────────────────────────────────────────────────────────
   style.css — Shared styles for all pages
   Jonathan Brine Photography
   ───────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────────────────────── */

:root {
    --bg:     #f9f8f6;
    --fg:     #222;
    --muted:  #777;
    --border: #e8e5e0;
    --radius: 6px;
}

/* ── Reset ──────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background-color: var(--bg);
    color: var(--fg);
    margin: 0;
    padding: 0;
    line-height: 1.65;
}

img { max-width: 100%; }

/* ── Film grain overlay ─────────────────────────────────────────────────────── */

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-size: 128px 128px;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */

header {
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(249,248,246,0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
}

.nav-pfp {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
}

.site-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    font-weight: 400;
    margin: 0;
    letter-spacing: -0.2px;
}

/* ── Navigation ─────────────────────────────────────────────────────────────── */

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--fg); }

/* ── Back link (gallery / about pages) ──────────────────────────────────────── */

.back {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    transition: color 0.2s;
    flex-shrink: 0;
}
.back:hover { color: var(--fg); }

/* ── Footer ─────────────────────────────────────────────────────────────────── */

footer {
    text-align: center;
    padding: 2.4rem 5%;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
}

footer nav {
    justify-content: center;
    gap: 1.8rem;
    margin-bottom: 1rem;
}

/* ── Hamburger (mobile nav toggle) ─────────────────────────────────────────── */

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 200;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--fg);
    border-radius: 2px;
    transition: transform 0.22s ease, opacity 0.15s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Accessibility ──────────────────────────────────────────────────────────── */

:focus-visible {
    outline: 2px solid var(--fg);
    outline-offset: 3px;
    border-radius: 2px;
}

/* ── Reduced motion ─────────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ── Mobile ─────────────────────────────────────────────────────────────────── */

@media (max-width: 620px) {
    .nav-toggle { display: flex; }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        padding: 1.2rem 5%;
        gap: 1.1rem;
        background: rgba(249,248,246,0.97);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 6px 24px rgba(0,0,0,0.06);
    }
    nav.open { display: flex; }
    nav a { font-size: 0.9rem; }
}