/* ── GLOBAL & VARIABLES ── */
:root {
    --bg: #f7f3eb;
    --surface: #f0ead9;
    --text: #1c1714;
    --text-muted: #6b5e54;
    --accent: #c0603a;
    --border: #ddd5c4;
    --card-shadow: 0 2px 8px rgba(28,23,20,0.08);
    --heading-font: 'Lora', Georgia, serif;
    --heading-weight: 700;
    --heading-tracking: 0;
    --image-filter: none;
    --selection-bg: rgba(192,96,58,0.2);
    --nav-bg: rgba(247,243,235,0.92);
    --code-bg: #ede8df;
    --code-text: #1c1714;
    --scrollbar-thumb: #ddd5c4;
    --blockquote-border: #c0603a;
    --radius: 12px;
    --shadow-sm: 0 1px 3px rgba(28,23,20,0.06);
    --shadow-md: 0 4px 16px rgba(28,23,20,0.1);
    --shadow-lg: 0 8px 32px rgba(28,23,20,0.12);
    --max-width: 1200px;
    --content-width: 720px;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg: #08080b;
    --surface: #111114;
    --text: #ebe6db;
    --text-muted: #888073;
    --accent: #f5a623;
    --border: rgba(255,255,255,0.06);
    --card-shadow: 0 0 0 1px rgba(255,255,255,0.05);
    --heading-font: 'Inter', sans-serif;
    --heading-weight: 300;
    --heading-tracking: -0.02em;
    --image-filter: saturate(0.8) brightness(0.92);
    --selection-bg: rgba(245,166,35,0.3);
    --nav-bg: rgba(8,8,11,0.8);
    --code-bg: #111114;
    --code-text: #f5a623;
    --scrollbar-thumb: rgba(255,255,255,0.1);
    --blockquote-border: #f5a623;
    --shadow-sm: 0 0 0 1px rgba(255,255,255,0.05);
    --shadow-md: 0 0 0 1px rgba(255,255,255,0.06);
    --shadow-lg: 0 0 0 1px rgba(255,255,255,0.08);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #08080b;
        --surface: #111114;
        --text: #ebe6db;
        --text-muted: #888073;
        --accent: #f5a623;
        --border: rgba(255,255,255,0.06);
        --card-shadow: 0 0 0 1px rgba(255,255,255,0.05);
        --heading-font: 'Inter', sans-serif;
        --heading-weight: 300;
        --heading-tracking: -0.02em;
        --image-filter: saturate(0.8) brightness(0.92);
        --selection-bg: rgba(245,166,35,0.3);
        --nav-bg: rgba(8,8,11,0.8);
        --code-bg: #111114;
        --code-text: #f5a623;
        --scrollbar-thumb: rgba(255,255,255,0.1);
        --blockquote-border: #f5a623;
        --shadow-sm: 0 0 0 1px rgba(255,255,255,0.05);
        --shadow-md: 0 0 0 1px rgba(255,255,255,0.06);
        --shadow-lg: 0 0 0 1px rgba(255,255,255,0.08);
    }
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:18px}
body{
    font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.75;
    overflow-x:hidden;
    -webkit-font-smoothing: antialiased;
}
::selection{background:var(--selection-bg);color:var(--text)}
a{color:var(--accent);text-decoration:none;transition:all .2s var(--transition)}
a:hover{text-decoration:none;color:var(--accent)}
img{filter:var(--image-filter);max-width: 100%;height: auto;}
button,input,textarea,select{font:inherit}

h1, h2, h3, h4, h5 {
    font-family: var(--heading-font);
    font-weight: var(--heading-weight);
    letter-spacing: var(--heading-tracking);
    line-height: 1.15;
    color: var(--text);
}

[data-case="lowercase"] * {
    text-transform: none !important;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--accent);
    z-index: 1000;
    width: 0%;
    transition: width 0.1s linear;
}
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--accent);
    z-index: 1000;
    transition: width 0.1s linear;
}

/* ── NAV ── */
nav{
    position:fixed;top:0;left:0;right:0;z-index:100;
    padding:1rem 2rem;
    display:flex;justify-content:space-between;align-items:center;
    background:var(--nav-bg);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
    transition:all .3s var(--transition);
}
nav.scrolled{padding:.6rem 2rem}
.nav-logo{font-family:var(--heading-font);font-weight:700;font-size:1.25rem;letter-spacing:-.02em;color:var(--text);text-decoration:none}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:1.5rem;list-style:none;align-items:center}
.nav-links a{color:var(--text-muted);font-size:.9rem;font-weight:500;transition:color .2s;text-decoration:none;position: relative;}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s var(--transition);
}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ── NAV TOGGLES ── */
.theme-toggle,
.case-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 8px;
    cursor: pointer;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    min-height: 32px;
    transition: border-color 0.2s, color 0.2s;
}
.case-toggle {
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1;
}
.theme-toggle:hover,
.case-toggle:hover,
.case-toggle[aria-pressed="true"] {
    border-color: var(--accent);
    color: var(--accent);
}
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
    :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: block; }
}

/* ── BUTTONS ── */
.btn{
    display:inline-flex;align-items:center;gap:.5rem;
    padding:.75rem 1.75rem;border-radius:8px;
    font-weight:600;font-size:.9rem;
    transition:all .25s var(--transition);cursor:pointer;border:none;text-decoration:none;
    white-space: nowrap;
}
.btn-primary{
    background:var(--accent);color:#fff;
    box-shadow:0 4px 16px rgba(192,96,58,0.25);
}
.btn-primary:hover{opacity:.9;transform:translateY(-2px);color:#fff;text-decoration:none}
.btn-ghost{
    background:transparent;color:var(--text);
    border:1px solid var(--border);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);text-decoration:none}

/* ── HERO (HOMEPAGE) ── */
.hero{
    min-height:100vh;display:flex;align-items:center;justify-content:center;
    position:relative;overflow:hidden;
    padding:6rem 2rem 4rem;
}
.hero::before{
    content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
    background:radial-gradient(ellipse 70% 55% at 50% 15%, rgba(192,96,58,0.10), transparent 70%);
}
[data-theme="dark"] .hero::before{
    background:radial-gradient(ellipse 70% 55% at 50% 15%, rgba(245,166,35,0.09), transparent 70%);
}
@media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]) .hero::before{
        background:radial-gradient(ellipse 70% 55% at 50% 15%, rgba(245,166,35,0.09), transparent 70%);
    }
}
.hero-content{position:relative;max-width:800px;text-align:center;z-index:1}
.fade-up{opacity:1;transform:none;transition:opacity .55s var(--transition),transform .55s var(--transition)}
.fade-up.visible{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}
.hero-label{
    display:inline-block;
    padding:.35rem .9rem;border-radius:100px;
    background:rgba(192,96,58,0.1);border:1px solid rgba(192,96,58,0.2);
    font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
    color:var(--accent);margin-bottom:1.5rem;
}
[data-theme="dark"] .hero-label {
    background:rgba(245,166,35,0.1);border-color:rgba(245,166,35,0.2);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .hero-label {
        background:rgba(245,166,35,0.1);border-color:rgba(245,166,35,0.2);
    }
}
.hero h1{
    font-family:var(--heading-font);
    font-size:clamp(2.5rem,6vw,4.5rem);
    font-weight:var(--heading-weight);
    letter-spacing:var(--heading-tracking);
    line-height:1.15;margin-bottom:1.5rem;
    color:var(--text);
}
.hero h1 em{
    color:var(--accent);
    font-style:italic;
}
.hero-desc{
    font-size:1.125rem;color:var(--text-muted);max-width:600px;margin:0 auto 2.5rem;
    line-height:1.75;
}
.hero-buttons{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}

/* ── BLOG LAYOUT ── */
.blog-hero {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 8rem 2rem 2rem;
}

.section-title {
    max-width: var(--max-width);
    margin: 4rem auto 2rem;
    padding: 0 2rem;
    font-size: 2.25rem;
    letter-spacing: -0.02em;
}
.hero-card {
    display: block;
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    height: min(58vw, 560px);
    min-height: 420px;
    background: var(--surface);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
}
.hero-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.75;
    transition: transform 0.6s var(--transition), opacity 0.4s var(--transition);
}
.hero-card:hover img { transform: scale(1.03); opacity: 0.85; }
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,10,15,0.95) 0%, rgba(10,10,15,0.55) 48%, rgba(10,10,15,0.08) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 3.5rem;
}
.hero-category {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1.25rem;
    width: fit-content;
}
.hero-title {
    font-size: clamp(2rem, 4vw, 3.4rem);
    letter-spacing: -0.02em;
    color: white;
    margin-bottom: 1rem;
    max-width: 640px;
    line-height: 1.1;
}
.hero-excerpt {
    color: rgba(255,255,255,0.82);
    font-size: 1.125rem;
    max-width: 520px;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.hero-meta {
    flex-wrap: wrap;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}
.dot,
.divider {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.6;
    flex: 0 0 auto;
}

.categories-section {
    max-width: var(--max-width);
    margin: 0 auto 4rem;
    padding: 0 2rem;
}
.categories-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}
.categories-scroll {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: none;
}
.categories-scroll::-webkit-scrollbar { display: none; }
.category-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.25s var(--transition);
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-sm);
}
.category-chip:hover { border-color: var(--accent); transform: translateY(-2px); }
.category-chip-name { font-weight: 600; font-size: 0.9375rem; }
.category-chip-count {
    font-size: 0.8125rem;
    color: var(--text-muted);
    background: var(--bg);
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
}

.posts-grid {
    max-width: var(--max-width);
    margin: 0 auto 4rem;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}
.post-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.35s var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}
.post-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.post-card-image { position: relative; height: 220px; overflow: hidden; }
.post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--transition); }
.post-card:hover .post-card-image img { transform: scale(1.08); }
.post-card-content { padding: 1.75rem; flex: 1; display: flex; flex-direction: column; }
.post-card-category { color: var(--accent); font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.875rem; }
.post-card-title { font-size: 1.25rem; margin-bottom: 0.75rem; line-height: 1.3; color: var(--text); }
.post-card-excerpt { color: var(--text-muted); font-size: 0.9375rem; line-height: 1.6; margin-bottom: 1.25rem; flex: 1; }
.post-card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 1.25rem; border-top: 1px solid var(--border); gap: 1rem; }
.post-card-author { display: flex; align-items: center; gap: 0.75rem; }
.author-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; color: white; font-size: 0.75rem; font-weight: 700; }
.author-name { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.post-card-meta { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8125rem; color: var(--text-muted); }

/* ── POST LAYOUT ── */
.post-hero {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 8rem 2rem 3rem;
    text-align: center;
}
.post-category { color: var(--accent); font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1.5rem; display: block; }
.post-title { font-size: clamp(2.1rem, 5vw, 3.6rem); margin-bottom: 1.5rem; line-height: 1.15; letter-spacing: -0.02em; }
.post-meta { display: flex; align-items: center; justify-content: center; gap: 1.5rem; color: var(--text-muted); font-size: 0.9375rem; flex-wrap: wrap; }

.post-layout {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: minmax(170px, 220px) minmax(0, var(--content-width));
    gap: 4rem;
    align-items: start;
    justify-content: center;
}
.toc {
    position: sticky;
    top: 100px;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.toc-title { font-size: 0.875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 1rem; }
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 0.75rem; }
.toc-list a { font-size: 0.875rem; color: var(--text-muted); display: block; padding: 0.25rem 0; border-left: 2px solid transparent; padding-left: 0.875rem; margin-left: -0.875rem; transition: all 0.2s; }
.toc-list a:hover { color: var(--accent); }
.toc-list a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.toc-mobile-toggle { display: none; }

.post-content { max-width: var(--content-width); width: 100%; }
.post-content :where(pre, code) {
    max-width: 100%;
}
.post-content pre {
    overflow-x: auto;
    padding: 1rem;
    border-radius: 10px;
    background: var(--code-bg);
    color: var(--code-text);
}
.post-featured-image { width: 100%; height: auto; max-height: 500px; object-fit: cover; border-radius: 16px; margin-bottom: 3rem; box-shadow: var(--shadow-md); }
.post-content p { font-size: 1.1rem; line-height: 1.8; color: var(--text); margin-bottom: 1.75rem; }
.post-content h2 { font-size: 1.875rem; margin-top: 3rem; margin-bottom: 1.25rem; scroll-margin-top: 100px; }
.post-content h3 { font-size: 1.5rem; margin-top: 2.5rem; margin-bottom: 1rem; }
.post-content blockquote {
    border-left: 4px solid var(--blockquote-border);
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
    font-style: italic;
    color: var(--text-muted);
    font-size: 1.15rem;
    line-height: 1.7;
    background: rgba(192,96,58,0.04);
    border-radius: 0 10px 10px 0;
}
[data-theme="dark"] .post-content blockquote { background: rgba(245,166,35,0.05); }

.author-bio {
    margin: 4rem 0;
    padding: 2.5rem;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    gap: 2rem;
    align-items: center;
    box-shadow: var(--shadow-sm);
}
.author-bio-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; color: white; font-size: 1.75rem; font-weight: 700; flex-shrink: 0; }
.author-bio-name { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.25rem; }
.author-bio-text { font-size: 1rem; color: var(--text-muted); line-height: 1.6; }

.related-posts { max-width: var(--max-width); margin: 6rem auto; padding: 0 2rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.related-card { background: var(--surface); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: all 0.3s var(--transition); box-shadow: var(--shadow-sm); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.related-card-image { height: 180px; overflow: hidden; }
.related-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s var(--transition); }
.related-card:hover .related-card-image img { transform: scale(1.05); }
.related-card-content { padding: 1.5rem; }

/* ── ARCHIVE LAYOUT ── */
.archive-hero { max-width: var(--max-width); margin: 0 auto; padding: 8rem 2rem 3rem; text-align: center; }
.archive-title { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.02em; margin-bottom: 1rem; }
.archive-subtitle,
.tags-subtitle {
    max-width: 640px;
    margin: 0 auto 2rem;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}
.category-filter { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 4rem; padding: 0 2rem; }
.category-btn { padding: 0.6rem 1.25rem; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); font-size: 0.9rem; color: var(--text-muted); cursor: pointer; transition: all 0.25s; }
.category-btn:hover, .category-btn.active { border-color: var(--accent); color: var(--accent); }
.category-btn.active { background: var(--accent); color: white; }

.posts-list { max-width: var(--max-width); margin: 0 auto 6rem; padding: 0 2rem; display: flex; flex-direction: column; gap: 2rem; }
.post-row { display: grid; grid-template-columns: 320px 1fr; gap: 3rem; padding: 2rem; background: var(--surface); border-radius: 16px; border: 1px solid var(--border); transition: all 0.35s var(--transition); cursor: pointer; }
.post-row:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.post-row-image { border-radius: 12px; overflow: hidden; height: 200px; }
.post-row-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.post-row:hover .post-row-image img { transform: scale(1.05); }
.post-row-title { font-size: 1.75rem; margin-bottom: 1rem; line-height: 1.25; }
.post-row-meta,
.post-row-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.875rem;
}
.post-row-meta { margin-bottom: 0.75rem; }
.post-row-excerpt { color: var(--text-muted); margin-bottom: 1.25rem; line-height: 1.65; }
.post-tag { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; }
.read-time { color: var(--text-muted); font-size: 0.8125rem; }

/* ── TAGS LAYOUT ── */
.tags-hero { max-width: var(--max-width); margin: 0 auto; padding: 8rem 2rem 3rem; text-align: center; }
.tags-title { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.02em; margin-bottom: 1rem; }
.search-container {
    max-width: 480px;
    margin: 0 auto 3rem;
    position: relative;
    padding: 0 1rem;
}
.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text);
    font-size: 0.9375rem;
    outline: none;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}
.search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(192,96,58,0.1); }
.search-icon { position: absolute; left: 2rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }

.tag-cloud { max-width: var(--max-width); margin: 0 auto 4rem; padding: 0 2rem; display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.5rem; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; cursor: pointer; transition: all 0.25s var(--transition); font-weight: 500; }
.tag:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--accent); }
.tag.active { background: var(--accent); color: white; border-color: var(--accent); }
.tag-count { font-size: 0.85rem; padding: 0.2rem 0.6rem; border-radius: 100px; background: var(--bg); color: var(--text-muted); }
.tag.active .tag-count { background: rgba(255,255,255,0.2); color: white; }

.tagged-posts { max-width: var(--max-width); margin: 0 auto 5rem; padding: 0 2rem; }
.tagged-posts-title { font-size: 1.5rem; margin-bottom: 1.5rem; }
.tagged-posts-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }

/* ── ABOUT LAYOUT ── */
.about-hero { max-width: var(--max-width); margin: 0 auto; padding: 8rem 2rem 4rem; display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.about-image img { width: 100%; height: 500px; object-fit: cover; border-radius: 20px; box-shadow: var(--shadow-md); }
.about-intro h1 { font-size: 3.5rem; margin-bottom: 1.5rem; line-height: 1.1; }
.about-text { font-size: 1.125rem; color: var(--text-muted); line-height: 1.75; }
.about-text p + p { margin-top: 1rem; }

.philosophy-title { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; font-size: 1.75rem; }
.philosophy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; max-width: var(--max-width); margin: 4rem auto; padding: 0 2rem; }
.philosophy-card { padding: 2.5rem; background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); transition: transform 0.3s; }
.philosophy-card:hover { transform: translateY(-5px); }
.philosophy-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--accent); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; }
.philosophy-icon svg { width: 28px; height: 28px; color: white; }

/* ── SHARED COMPONENTS ── */
/* ── SECTIONS ── */
section{padding:6rem 2rem}
.about-section{padding-top:1rem}
.section-header{text-align:center;margin-bottom:4rem}
.section-header h2{ font-size:2.2rem; margin-bottom:.75rem; color:var(--text); }
.section-label{ display:inline-block; font-size:.7rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:.75rem; }
.about-content{max-width:760px;margin:0 auto}
.about-content p{font-size:1.08rem;color:var(--text-muted);line-height:1.85;margin-bottom:1.4rem}
.about-content strong{color:var(--text)}

/* ── FOOTER ── */
footer{ text-align:center;padding:4rem 2rem; border-top:1px solid var(--border); font-size:.9rem; color:var(--text-muted); background: var(--surface); }
.footer-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 1.5rem; }
.footer-links a:hover { color: var(--text); }

/* Back to top */
.back-to-top {
    position: fixed; bottom: 2rem; right: 2rem; width: 48px; height: 48px; border-radius: 50%;
    background: var(--surface); border: 1px solid var(--border); color: var(--text);
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.3s; z-index: 99;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── MOBILE OPTIMIZATION (768px) ── */
.mobile-toggle{display:none;background:none;border:1px solid transparent;color:var(--text);font-size:1.5rem;cursor:pointer;border-radius:8px;min-width:44px;min-height:44px;line-height:1}
@media(max-width:1024px){
    html { font-size: 17px; }
    nav { padding: 0.9rem 1.5rem; }
    nav.scrolled { padding: 0.7rem 1.5rem; }
    .nav-links { gap: 1rem; }
    .hero { min-height: auto; padding-top: 7rem; }
    .posts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.75rem; }
    .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .tagged-posts-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.75rem; }
    .post-layout { grid-template-columns: minmax(0, var(--content-width)); max-width: 820px; gap: 2rem; }
    .toc { display: none; }
    .about-hero { gap: 3rem; }
    .philosophy-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .post-row { grid-template-columns: minmax(220px, 280px) 1fr; gap: 2rem; }
}
@media(max-width:768px){
    html { font-size: 16px; }
    nav { padding: 0.7rem 1rem; }
    nav.scrolled { padding: 0.6rem 1rem; }
    .nav-links{
        display:none;position:absolute;top:100%;left:0;right:0;
        flex-direction:column;gap:0;align-items:stretch;
        background:var(--nav-bg);
        border-bottom:1px solid var(--border);
        padding:0.75rem 1rem 1rem;
        box-shadow: var(--shadow-md);
    }
    .nav-links.open{display:flex}
    .nav-links li { width: 100%; }
    .nav-links a{padding:.75rem 1rem;display:block; text-align: center;border-radius:8px;}
    .nav-links a:hover,.nav-links a.active{background:var(--surface)}
    .nav-links a::after { display: none; }
    .nav-controls { justify-content: center; padding: 0.75rem 1rem; }
    .mobile-toggle{display:block}

    .hero { padding: 6rem 1.25rem 3.5rem; min-height: 92svh; }
    .hero h1 { font-size: clamp(2.25rem, 13vw, 3rem); }
    .hero-desc { font-size: 1rem; margin-bottom: 2rem; }
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .hero-buttons .btn { justify-content: center; width: 100%; }

    .blog-hero { padding: 5.75rem 1rem 1rem; }
    .section-title { padding: 0 1rem; font-size: 1.75rem; margin: 3rem auto 1.5rem; }
    .hero-card { height: auto; min-height: 430px; border-radius: 14px; }
    .hero-overlay { padding: 1.5rem; }
    .hero-title { font-size: 1.8rem; }
    .hero-excerpt { font-size: 1rem; }
    .hero-meta { gap: 0.55rem; font-size: 0.82rem; }

    .posts-grid { grid-template-columns: 1fr; padding: 0 1rem; gap: 1.25rem; }
    .categories-section { padding: 0 1rem; margin-bottom: 3rem; }
    .categories-header { display: block; }
    .categories-title { font-size: 1.25rem; line-height: 1.35; }
    .post-card-content { padding: 1.25rem; }
    .post-card-footer { align-items: flex-start; flex-direction: column; }
    .post-card-meta { flex-wrap: wrap; }

    .post-hero { padding: 6rem 1rem 2rem; }
    .post-title { font-size: 2rem; }
    .post-meta { gap: 0.75rem; font-size: 0.875rem; }
    .post-layout { grid-template-columns: 1fr; gap: 2rem; padding: 0 1rem; }
    .toc { display: none; } /* TOC is handled via mobile toggle in JS if implemented */
    .toc.toc-visible { display: block; position: sticky; top: 5rem; z-index: 10; background: var(--surface); padding: 1.5rem; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 2rem; }
    .toc-mobile-toggle { display: block; width: 100%; padding: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); font-weight: 600; margin-bottom: 1rem; cursor: pointer; transition: all 0.3s; }
    .toc-mobile-toggle.open { background: var(--accent); color: white; border-color: var(--accent); }
    .post-featured-image { margin-bottom: 2rem; }
    .post-content p { font-size: 1rem; line-height: 1.75; }
    .post-content h2 { font-size: 1.55rem; }
    .post-content h3 { font-size: 1.3rem; }
    .post-content blockquote { padding: 1.25rem; margin: 2rem 0; font-size: 1rem; }
    .author-bio { flex-direction: column; text-align: center; padding: 2rem 1.5rem; }
    .related-grid { grid-template-columns: 1fr; }

    .archive-hero { padding: 6rem 1rem 2rem; }
    .archive-subtitle, .tags-subtitle { font-size: 1rem; }
    .category-filter { gap: 0.5rem; margin-bottom: 2rem; padding: 0; }
    .category-btn { flex: 1 1 auto; min-width: 92px; padding: 0.6rem 0.8rem; }
    .post-row { grid-template-columns: 1fr; gap: 1.25rem; padding: 1rem; border-radius: 12px; }
    .post-row-image { height: 180px; }
    .post-row-title { font-size: 1.4rem; }
    .posts-list { padding: 0 1rem; gap: 1.25rem; }
    .post-row-author { gap: 0.55rem; }

    .tags-hero { padding: 6rem 1rem 2rem; }
    .search-container { margin-bottom: 2rem; }
    .tag-cloud { gap: 0.75rem; padding: 0 1rem; }
    .tag { padding: 0.6rem 0.9rem; border-radius: 10px; }
    .tagged-posts { padding: 0 1rem; }
    .tagged-posts-list { grid-template-columns: 1fr; gap: 1.5rem; }

    .about-hero { grid-template-columns: 1fr; text-align: center; gap: 2rem; padding: 6rem 1rem 2rem; }
    .about-image img { height: 350px; }
    .about-intro h1 { font-size: 2.2rem; }
    .philosophy-title { padding: 0 1rem; }
    .philosophy-grid { grid-template-columns: 1fr; padding: 0 1rem; margin: 2rem auto 4rem; }
    .philosophy-card { padding: 1.5rem; }

    section { padding: 4rem 1rem; }
    .section-header { margin-bottom: 2.5rem; }
    .section-header h2 { font-size: 1.75rem; }
    .about-content p { font-size: 1rem; }
    footer { padding: 3rem 1.5rem 5rem; }
    .footer-links { flex-direction: column; gap: 1rem; align-items: center; }
    .back-to-top { width: 44px; height: 44px; right: 1rem; bottom: 1rem; }
}

@media(max-width:420px){
    .hero { padding-left: 1rem; padding-right: 1rem; }
    .hero-label { font-size: 0.68rem; padding: 0.3rem 0.7rem; }
    .hero h1 { font-size: 2.15rem; }
    .btn { padding: 0.75rem 1rem; white-space: normal; }
    .hero-card { min-height: 390px; }
    .hero-title { font-size: 1.55rem; }
    .hero-excerpt { display: none; }
    .hero-meta .dot,
    .post-meta .divider { display: none; }
    .post-meta { flex-direction: column; gap: 0.25rem; }
    .post-card-image { height: 190px; }
    .author-name,
    .reading-time { display: none; }
    .category-chip { padding: 0.7rem 0.9rem; }
    .category-chip-count { display: none; }
    .category-btn { min-width: 0; flex-basis: calc(50% - 0.25rem); }
    .post-row-image { height: 160px; }
    .tag-cloud { justify-content: flex-start; }
    .about-image img { height: 280px; border-radius: 14px; }
    .about-intro h1 { font-size: 1.9rem; }
    .philosophy-icon { width: 48px; height: 48px; border-radius: 12px; }
}

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

/* ── Focus-visible (a11y) ── */
:where(a, button, input, textarea, select, [tabindex]):focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ── Reduced motion: also kill fade-up transforms ── */
@media (prefers-reduced-motion: reduce) {
    .fade-up { opacity: 1 !important; transform: none !important; }
}

/* ── Heading anchor links (rehype-autolink-headings) ── */
.post-content :is(h2, h3, h4) { position: relative; }
.post-content .heading-anchor {
    margin-left: 0.4em;
    color: var(--text-muted);
    opacity: 0;
    text-decoration: none;
    font-weight: 400;
    transition: opacity 0.15s ease, color 0.15s ease;
}
.post-content :is(h2, h3, h4):hover .heading-anchor,
.post-content .heading-anchor:focus-visible { opacity: 1; color: var(--accent); }

/* ── Post pager (prev/next) ── */
.post-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 48px 0 24px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}
.pager-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    background: var(--surface);
    transition: border-color 0.2s var(--transition), transform 0.2s var(--transition);
}
.pager-link:hover { border-color: var(--accent); transform: translateY(-1px); }
.pager-link.next { text-align: right; }
.pager-link .pager-label { font-size: 0.78rem; color: var(--text-muted); letter-spacing: 0.04em; text-transform: uppercase; }
.pager-link .pager-title { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 1.05rem; line-height: 1.3; }
@media (max-width: 640px) {
    .post-pager { grid-template-columns: 1fr; }
    .pager-link.next { text-align: left; }
}

/* ── Reply by email link ── */
.reply-link {
    margin-top: 28px;
    color: var(--text-muted);
    font-style: italic;
}
.reply-link a { color: var(--accent); }

/* ── Home: latest posts ── */
.home-latest {
    max-width: var(--content-width);
    margin: 64px auto 96px;
    padding: 0 24px;
}
.home-latest-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}
.home-latest-header h2 {
    font-family: var(--heading-font);
    font-weight: var(--heading-weight);
    font-size: 1.6rem;
    letter-spacing: var(--heading-tracking);
}
.home-latest-more { color: var(--accent); text-decoration: none; font-size: 0.95rem; }
.home-latest-more:hover { text-decoration: underline; }
.home-latest-list { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.home-latest-item a {
    display: block;
    padding: 20px 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    background: var(--surface);
    transition: border-color 0.2s var(--transition), transform 0.2s var(--transition);
}
.home-latest-item a:hover { border-color: var(--accent); transform: translateY(-1px); }
.home-latest-cat { display: inline-block; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.home-latest-item h3 { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 1.2rem; line-height: 1.3; margin-bottom: 6px; }
.home-latest-item p { color: var(--text-muted); font-size: 0.96rem; line-height: 1.5; margin-bottom: 10px; }
.home-latest-meta { display: flex; gap: 8px; color: var(--text-muted); font-size: 0.82rem; }

/* ── /now page ── */
.now-main { max-width: var(--content-width); margin: 80px auto; padding: 0 24px; }
.now-eyebrow { color: var(--accent); font-family: var(--heading-font); font-size: 0.95rem; margin-bottom: 8px; }
.now-title { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 2.2rem; line-height: 1.2; letter-spacing: var(--heading-tracking); margin-bottom: 12px; }
.now-updated { color: var(--text-muted); font-style: italic; margin-bottom: 40px; }
.now-content h2 { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 1.3rem; margin: 28px 0 10px; letter-spacing: var(--heading-tracking); }
.now-content p { color: var(--text); line-height: 1.7; margin-bottom: 16px; }
.now-footnote { margin-top: 40px; color: var(--text-muted); font-size: 0.9rem; }
.now-footnote a { color: var(--accent); }

/* ── 404 recent posts ── */
.error-recent { margin-top: 56px; text-align: left; max-width: 520px; width: 100%; }
.error-recent h2 { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 1.15rem; margin-bottom: 14px; letter-spacing: var(--heading-tracking); }
.error-recent ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.error-recent a { color: var(--accent); text-decoration: none; }
.error-recent a:hover { text-decoration: underline; }

/* ── tag anchor + related posts ── */
a.tag { text-decoration: none; color: inherit; }
a.tag:hover { color: var(--accent); }
.related-posts { margin: 72px 0 32px; }
.related-posts-title { font-family: var(--heading-font); font-weight: var(--heading-weight); font-size: 1.3rem; margin-bottom: 20px; letter-spacing: var(--heading-tracking); }

/* ── Text-to-Speech control ── */
.tts-control {
    display: inline-flex; align-items: center; gap: 6px;
    background: transparent; border: 1px solid var(--border);
    color: var(--text-muted); cursor: pointer;
    padding: 3px 10px; border-radius: 999px;
    font: inherit; font-size: 0.82rem; line-height: 1;
    transition: color 0.2s var(--transition), border-color 0.2s var(--transition), background 0.2s var(--transition);
}
.tts-control:hover { color: var(--accent); border-color: var(--accent); }
.tts-control[data-state="playing"] { color: var(--accent); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.tts-control[data-state="paused"] { color: var(--accent); border-color: var(--accent); }
.tts-stop { padding: 3px 8px; }
.tts-stop svg { display: block; }