/* ============================================================
   HUGH SIMPSON BLOG - PUBLIC STYLES
   Editorial style - clean, readable, authoritative
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700;900&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&display=swap');

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
    --color-bg: #faf9f7;
    --color-surface: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #6b6b6b;
    --color-accent: #8b1a1a;
    --color-accent-light: #b52a2a;
    --color-border: #e8e4de;
    --color-card-bg: #ffffff;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;

    --max-width: 1100px;
    --content-width: 740px;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
}

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

html { font-size: 18px; scroll-behavior: smooth; }

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent-light); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-accent);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.site-branding { flex-shrink: 0; }

.site-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-text);
    letter-spacing: -0.02em;
    display: block;
    line-height: 1.1;
}
.site-title:hover { color: var(--color-accent); }

.site-tagline {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 2px;
}

.site-nav {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    flex-wrap: wrap;
}

.site-nav a {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: color 0.2s;
}
.site-nav a:hover { color: var(--color-accent); }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--color-text);
    padding: var(--space-xs);
}

/* ============================================================
   MAIN LAYOUT
   ============================================================ */
.site-main { min-height: 70vh; }

.blog-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

/* ============================================================
   POST GRID (Homepage)
   ============================================================ */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.post-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}
.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}

.post-card-image-link { display: block; }

.post-card-image {
    width: 100%;
    height: 210px;
    background-size: cover;
    background-position: center top;
    background-color: var(--color-border);
    transition: transform 0.4s;
}
.post-card:hover .post-card-image { transform: scale(1.03); }

.post-card-body {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.post-category {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    display: inline-block;
}

.post-card-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-xs);
}
.post-card-title a { color: var(--color-text); }
.post-card-title a:hover { color: var(--color-accent); }

.post-card-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
    margin-bottom: var(--space-sm);
}

.post-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-sm);
    margin-top: auto;
}

.post-date {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.read-more {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent);
}

/* ============================================================
   CATEGORY HEADER
   ============================================================ */
.category-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-border);
    display: flex;
    align-items: baseline;
    gap: var(--space-md);
}

.category-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
}

.back-link {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.page-btn {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-sm);
    border: 2px solid var(--color-accent);
    border-radius: 3px;
    transition: all 0.2s;
}
.page-btn:hover {
    background: var(--color-accent);
    color: #fff;
}

.page-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ============================================================
   SINGLE POST
   ============================================================ */
.blog-container--single { max-width: var(--content-width); }

.post-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--color-border);
}

.post-title {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: var(--space-xs) 0 var(--space-sm);
    color: var(--color-text);
}

.post-meta {
    display: flex;
    gap: var(--space-md);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Post content typography */
.post-content {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--color-text);
}

.post-content p { margin-bottom: var(--space-md); }
.post-content h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--color-text);
}
.post-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin: var(--space-md) 0 var(--space-xs);
}
.post-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.post-content strong { font-weight: 700; }
.post-content em { font-style: italic; }
.post-content ul, .post-content ol {
    margin: var(--space-sm) 0 var(--space-md) var(--space-lg);
}
.post-content li { margin-bottom: var(--space-xs); }
.post-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--space-md);
    margin: var(--space-md) 0;
    color: var(--color-text-muted);
    font-style: italic;
}
.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: var(--space-md) auto;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* Post gallery */
.post-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.gallery-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 3px;
    transition: opacity 0.2s;
}
.gallery-item:hover img { opacity: 0.85; }

/* Post footer */
.post-footer {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.btn-back {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}
.btn-back:hover { color: var(--color-accent); }

/* Post navigation */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 2px solid var(--color-border);
}

.post-nav-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    transition: border-color 0.2s, background 0.2s;
}
.post-nav-link:hover {
    border-color: var(--color-accent);
    background: rgba(139,26,26,0.03);
}
.post-nav-next { text-align: right; }

.nav-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    font-weight: 700;
    display: block;
}

.nav-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text);
    display: block;
    line-height: 1.3;
}

/* Not found */
.not-found {
    text-align: center;
    padding: var(--space-xl) 0;
}
.not-found h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    margin-top: var(--space-xl);
    font-size: 0.82rem;
}

.site-footer a { color: rgba(255,255,255,0.8); }
.site-footer a:hover { color: #fff; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    html { font-size: 16px; }

    .header-inner { flex-wrap: wrap; }

    .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
        padding: var(--space-sm) 0;
        border-top: 1px solid var(--color-border);
    }
    .site-nav.is-open { display: flex; }

    .nav-toggle { display: block; }

    .post-grid { grid-template-columns: 1fr; }

    .post-title { font-size: 1.9rem; }

    .post-navigation { grid-template-columns: 1fr; }
    .post-nav-next { text-align: left; }

    .blog-container { padding: var(--space-lg) var(--space-sm); }
}

@media (max-width: 480px) {
    .post-title { font-size: 1.6rem; }
    .post-card-image { height: 180px; }
}