/* ==========================================
   EDITORIAL DESIGN SYSTEM
   Blog-first. Warm paper, serif display,
   comfortable reading measure, hairline rules.
   ========================================== */
:root {
    /* Type */
    --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    /* Reading layout */
    --measure: 680px;       /* comfortable line length for prose */
    --page: 1080px;         /* outer page width */
    --navbar-height: 72px;

    /* Spacing scale */
    --space-2xs: 0.5rem;
    --space-xs: 0.75rem;
    --space-sm: 1.25rem;
    --space-md: 2rem;
    --space-lg: 3.5rem;
    --space-xl: 6rem;

    --radius: 6px;
    --radius-lg: 14px;

    --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Light (warm sand) ---- */
[data-theme="light"] {
    --bg: #fcfaf5;
    --bg-elev: #ffffff;
    --bg-sunken: #f4efe3;
    --bg-navbar: rgba(252, 250, 245, 0.82);

    --text: #1f1a12;
    --text-soft: #5c5340;
    --text-mute: #968a70;

    --accent: #b8860b;          /* golden amber */
    --accent-soft: rgba(184, 134, 11, 0.12);
    --accent-contrast: #ffffff; /* text on accent fills */

    --rule: rgba(31, 26, 18, 0.12);
    --rule-strong: rgba(31, 26, 18, 0.22);

    --code-bg: #f3eddd;
    --code-block-bg: #1f1a10;
    --code-block-text: #efe7d2;
    --shadow: 0 14px 40px -22px rgba(31, 26, 18, 0.40);
}

/* ---- Dark (warm gold ink) ---- */
[data-theme="dark"] {
    --bg: #14110a;
    --bg-elev: #1d1810;
    --bg-sunken: #0f0c07;
    --bg-navbar: rgba(20, 17, 10, 0.78);

    --text: #f0ead9;
    --text-soft: #b9af96;
    --text-mute: #847a63;

    --accent: #f0b429;          /* bright amber */
    --accent-soft: rgba(240, 180, 41, 0.15);
    --accent-contrast: #14110a; /* dark text on bright amber */

    --rule: rgba(240, 234, 217, 0.12);
    --rule-strong: rgba(240, 234, 217, 0.24);

    --code-bg: #241e12;
    --code-block-bg: #0b0905;
    --code-block-text: #ece4cf;
    --shadow: 0 18px 50px -24px rgba(0, 0, 0, 0.85);
}

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

html {
    scroll-behavior: smooth;
    font-size: 17px;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.65;
    font-feature-settings: "kern", "liga", "calt";
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
pre, code { font-family: var(--font-mono); }
::selection { background: var(--accent); color: var(--accent-contrast); }

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--navbar-height);
    z-index: 100;
    background-color: var(--bg-navbar);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background-color var(--transition);
}

.navbar.scrolled { border-bottom-color: var(--rule); }

.nav-container {
    max-width: var(--page);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}
.logo-accent { color: var(--accent); }

.nav-menu { display: flex; align-items: center; gap: var(--space-sm); }

.nav-link {
    position: relative;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-soft);
    padding: 0.35rem 0;
}
.nav-link i { display: none; }      /* editorial: text-only nav */

.nav-link::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 100%;
    height: 1.5px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: var(--space-sm); }

.theme-toggle-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    border: 1px solid var(--rule);
    color: var(--text-soft);
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.theme-toggle-btn:hover { color: var(--accent); border-color: var(--rule-strong); }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: none; }

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px; height: 16px;
}
.hamburger-bar {
    display: block; width: 100%; height: 1.5px;
    background-color: var(--text);
    transition: var(--transition);
}

/* ==========================================
   PAGE STRUCTURE
   ========================================== */
.content-wrapper {
    flex: 1;
    width: 100%;
    max-width: var(--page);
    margin: var(--navbar-height) auto 0;
    padding: 0 var(--space-md);
}

.view-section {
    display: none;
    padding: var(--space-xl) 0 var(--space-lg);
    min-height: calc(100vh - var(--navbar-height) - 140px);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}
.view-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Eyebrow label used above section titles */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: var(--space-xs);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 4vw, 2.8rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* ==========================================
   MASTHEAD (top of Writing/home)
   ========================================== */
.masthead {
    max-width: var(--measure);
    padding-bottom: var(--space-lg);
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid var(--rule);
}
.masthead h1 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.6rem, 6vw, 4rem);
    line-height: 1.04;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-sm);
}
.masthead h1 .accent { color: var(--accent); }
.masthead .lede {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-soft);
    max-width: 36em;
}
.masthead .lede a { color: var(--text); border-bottom: 1px solid var(--accent); padding-bottom: 1px; }
.masthead .lede a:hover { color: var(--accent); }

.masthead-now {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: var(--space-sm);
    font-size: 0.92rem;
    color: var(--text-mute);
}
.now-label {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 50px;
    padding: 0.12rem 0.55rem;
}

.masthead-socials {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    font-size: 1.15rem;
    color: var(--text-mute);
}
.masthead-socials a:hover { color: var(--accent); transform: translateY(-2px); }
.masthead-socials a { transition: var(--transition); display: inline-block; }

/* ==========================================
   WRITING LIST CONTROLS
   ========================================== */
.writing-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}
.writing-head h2 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.7rem;
    letter-spacing: -0.01em;
}

.blog-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.search-wrapper { position: relative; min-width: 240px; flex: 1; max-width: 340px; }
.search-icon {
    position: absolute; left: 0; top: 50%;
    transform: translateY(-50%);
    color: var(--text-mute);
    font-size: 0.85rem;
}
#blog-search {
    width: 100%;
    padding: 0.5rem 0 0.5rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--rule);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition);
}
#blog-search::placeholder { color: var(--text-mute); }
#blog-search:focus { outline: none; border-bottom-color: var(--accent); }

.blog-tag-filters { display: flex; gap: var(--space-2xs); flex-wrap: wrap; }
.tag-btn {
    padding: 0.3rem 0.85rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-mute);
    border: 1px solid var(--rule);
    border-radius: 50px;
    transition: var(--transition);
}
.tag-btn:hover { color: var(--text); border-color: var(--rule-strong); }
.tag-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
}

/* ==========================================
   ARTICLE ROWS (the main event)
   ========================================== */
/* ==========================================
   WRITING TABS + SERIES CARD GRID
   ========================================== */
.writing-tabs {
    display: flex;
    gap: var(--space-md);
    border-bottom: 1px solid var(--rule);
    margin-bottom: var(--space-lg);
}
.writing-tab {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-mute);
    padding: 0.7rem 0.1rem;
    margin-bottom: -1px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}
.writing-tab:hover { color: var(--text); }
.writing-tab.active { color: var(--text); border-bottom-color: var(--accent); }

.view-pane[hidden] { display: none; }

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
}

.series-card {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    text-align: left;
    padding: var(--space-md);
    background: var(--bg-elev);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
}
.series-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}
.series-card-icon {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 1.2rem;
}
.series-card-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.01em;
}
.series-card-desc {
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.55;
    flex-grow: 1;
}
.series-card-posts {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.85rem;
    color: var(--text-mute);
    border-top: 1px solid var(--rule);
    padding-top: 0.8rem;
}
.series-card-posts li {
    display: flex;
    gap: 0.45rem;
    align-items: baseline;
}
.series-card-posts li::before { content: '›'; color: var(--accent); }
.series-card-posts li.more { color: var(--text-soft); font-style: italic; }
.series-card-posts li.more::before { content: ''; }
.series-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.2rem;
}
.series-card-count {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--text-mute);
}
.series-card-go {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.series-card:hover .series-card-go i { transform: translateX(3px); transition: var(--transition); }

/* Dedicated series page (#series/<key>) */
.series-page {
    max-width: var(--measure);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md) var(--space-xl);
    animation: fadeUp 0.4s ease;
}
.series-page-head {
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-sm);
    border-bottom: 1px solid var(--rule);
}
.series-page-head .series-card-icon { margin-bottom: var(--space-sm); }
.series-page-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2rem, 5vw, 2.8rem);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}
.series-page-desc {
    color: var(--text-soft);
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 52ch;
    margin-bottom: 0.75rem;
}
.series-page-count {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-mute);
}
.series-page-posts {
    border-top: 1px solid var(--rule-strong);
    margin-top: var(--space-md);
}
.series-empty { color: var(--text-mute); padding: var(--space-md) 0; }

.blog-grid { display: block; }

/* Series groupings */
.series-block { margin-bottom: var(--space-xl); }
.series-block:last-child { margin-bottom: 0; }

.series-head { margin-bottom: var(--space-sm); }
.series-title {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.01em;
}
.series-title i { color: var(--accent); font-size: 1.1rem; }
.series-count {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-mute);
    margin-left: 0.7rem;
    white-space: nowrap;
}
.series-desc {
    color: var(--text-soft);
    font-size: 0.95rem;
    margin-top: 0.5rem;
    max-width: 60ch;
}
.series-posts {
    margin-top: var(--space-sm);
    border-top: 1px solid var(--rule-strong);
}

.post-row {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-md);
    align-items: start;
    padding: var(--space-md) var(--space-sm);
    margin: 0 calc(-1 * var(--space-sm));
    border-bottom: 1px solid var(--rule);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background-color var(--transition);
    animation: rowIn 0.5s ease backwards;
}
.post-row:hover { background: var(--bg-elev); }

/* accent bar slides in on hover */
.post-row::before {
    content: '';
    position: absolute;
    left: 0; top: 14%;
    width: 2px; height: 72%;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition);
}
.post-row:hover::before { transform: scaleY(1); }

@keyframes rowIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.post-row:nth-child(2) { animation-delay: 0.05s; }
.post-row:nth-child(3) { animation-delay: 0.10s; }
.post-row:nth-child(4) { animation-delay: 0.15s; }
.post-row:nth-child(5) { animation-delay: 0.20s; }
.post-row:nth-child(n+6) { animation-delay: 0.25s; }

.post-row-kicker {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.55rem;
}

.post-row-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin-bottom: 0.5rem;
    transition: color var(--transition);
}
.post-row:hover .post-row-title { color: var(--accent); }

.post-row-excerpt {
    color: var(--text-soft);
    font-size: 0.98rem;
    line-height: 1.6;
    max-width: 56ch;
    margin-bottom: 0.85rem;
}

.post-row-tags { display: flex; gap: 0.85rem; flex-wrap: wrap; }
.post-row-tags span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-mute);
}
.post-row-tags span::before { content: '#'; opacity: 0.6; }

.post-row-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.15rem;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-mute);
    white-space: nowrap;
    padding-top: 0.5rem;
}
.post-row-meta .date { color: var(--text-soft); }
.post-row-go {
    margin-top: 0.7rem;
    font-size: 0.85rem;
    color: var(--accent);
    opacity: 0;
    transform: translateX(-6px);
    transition: var(--transition);
}
.post-row:hover .post-row-go { opacity: 1; transform: translateX(0); }

/* Featured lead article */
.post-row.featured { padding-top: var(--space-md); }
.post-row.featured .post-row-title { font-size: 2.2rem; }
.post-row.featured .post-row-excerpt { font-size: 1.1rem; max-width: 58ch; }

/* Empty / loading state */
.loader-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xl) 0;
    color: var(--text-mute);
}
.spinner {
    width: 32px; height: 32px;
    border: 2px solid var(--rule);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.9s infinite linear;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================
   READER OVERLAY (article view)
   ========================================== */
.blog-reader-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--bg);
    overflow-y: auto;
    display: none;
}
.blog-reader-overlay.active { display: block; }

/* Reading progress (fixed across viewport top) */
.reader-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0;
    background: var(--accent);
    z-index: 210;
    transition: width 0.08s linear;
}

/* Sticky toolbar with back + copy-link */
.reader-topbar {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--bg-navbar);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--rule);
}
.reader-topbar-inner {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 0.85rem var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.reader-topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.reader-topbar-actions .theme-toggle-btn { width: 34px; height: 34px; font-size: 0.85rem; }

.close-reader-btn, .copy-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    color: var(--text-mute);
    transition: var(--transition);
}
.close-reader-btn:hover, .copy-link-btn:hover { color: var(--accent); }
.copy-link-btn.copied { color: #15803d; }
[data-theme="dark"] .copy-link-btn.copied { color: #6ee7a8; }

.reader-container {
    max-width: 1060px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md) var(--space-xl);
    display: grid;
    grid-template-columns: 200px minmax(0, var(--measure));
    gap: var(--space-lg);
    justify-content: center;
    align-items: start;
    animation: fadeUp 0.4s ease;
}
.reader-main { min-width: 0; }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Table of contents (sticky sidebar) */
.reader-toc {
    position: sticky;
    top: 90px;
    align-self: start;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    border-left: 1px solid var(--rule);
    padding-left: var(--space-sm);
}
.reader-toc.empty { display: none; }
.reader-toc-title {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-mute);
    margin-bottom: 0.75rem;
}
.reader-toc a {
    display: block;
    font-size: 0.83rem;
    line-height: 1.4;
    color: var(--text-mute);
    padding: 0.28rem 0;
    transition: color var(--transition);
}
.reader-toc a.sub { padding-left: 0.9rem; font-size: 0.78rem; }
.reader-toc a:hover { color: var(--text); }
.reader-toc a.active { color: var(--accent); font-weight: 500; }

/* offset anchored headings below the sticky toolbar */
.reader-content h2, .reader-content h3 { scroll-margin-top: 90px; }

/* Prev / Next pager */
.reader-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid var(--rule);
}
.pager-link {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: var(--space-sm);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}
.pager-link:hover { border-color: var(--accent); background: var(--bg-elev); }
.pager-link.next { text-align: right; align-items: flex-end; }
.pager-dir {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-mute);
}
.pager-ttl {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.02rem;
    line-height: 1.25;
    color: var(--text);
    transition: color var(--transition);
}
.pager-link:hover .pager-ttl { color: var(--accent); }
.pager-empty { border: none; cursor: default; background: none; }

/* Newsletter */
.newsletter {
    margin-top: var(--space-xl);
    padding: var(--space-lg) var(--space-md);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    background: var(--bg-elev);
    text-align: center;
}
.newsletter-inner { max-width: 30rem; margin: 0 auto; }
.newsletter h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.65rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}
.newsletter > .newsletter-inner > p { color: var(--text-soft); margin-bottom: var(--space-sm); }
.newsletter-form {
    display: flex;
    gap: 0.5rem;
    max-width: 26rem;
    margin: 0 auto;
}
.newsletter-form input {
    flex: 1;
    min-width: 0;
    padding: 0.7rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}
.newsletter-form input:focus { outline: none; border-color: var(--accent); }
.newsletter-form .btn { white-space: nowrap; }
.newsletter-status { font-size: 0.85rem; margin-top: 0.75rem; min-height: 1.1em; }
.newsletter-status.success { color: #15803d; }
[data-theme="dark"] .newsletter-status.success { color: #6ee7a8; }

/* Drop cap on the opening paragraph */
.reader-content h1 + p::first-letter {
    float: left;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 3.6rem;
    line-height: 0.78;
    padding: 0.08em 0.12em 0 0;
    color: var(--accent);
}

/* Reader typography */
.reader-content { color: var(--text-soft); line-height: 1.8; }
.reader-content h1 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 2.9rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: var(--space-sm);
}
.reader-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-mute);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-md);
    border-bottom: 1px solid var(--rule);
}
.reader-meta .category { color: var(--accent); }
.reader-meta i { margin-right: 0.3rem; }

.reader-content h2 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.55rem;
    letter-spacing: -0.01em;
    color: var(--text);
    margin: var(--space-md) 0 0.75rem;
}
.reader-content h3 {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.12rem;
    color: var(--text);
    margin: var(--space-sm) 0 0.5rem;
}
.reader-content p { margin-bottom: 1.3rem; font-size: 1.08rem; }
.reader-content strong { color: var(--text); font-weight: 600; }

.reader-content code {
    background: var(--code-bg);
    color: var(--text);
    padding: 0.12em 0.4em;
    border-radius: 4px;
    font-size: 0.86em;
}
.reader-content pre {
    background: var(--code-block-bg);
    border-radius: var(--radius);
    padding: 1.15rem 1.3rem;
    margin: 1.5rem 0;
    overflow-x: auto;
}
.reader-content pre code {
    background: transparent;
    color: var(--code-block-text);
    padding: 0;
    font-size: 0.88rem;
    line-height: 1.6;
}
.reader-content ul, .reader-content ol { margin: 0 0 1.3rem 1.3rem; }
.reader-content li { margin-bottom: 0.5rem; }
.reader-content blockquote {
    border-left: 3px solid var(--accent);
    background: var(--bg-sunken);
    padding: 1rem 1.3rem;
    margin: 1.5rem 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text);
}
.reader-content .code-box {
    background: var(--bg-sunken);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 1rem 1.3rem;
    margin: 1.5rem 0;
}
.reader-content .code-box ul { margin-bottom: 0; }

/* ==========================================
   ABOUT
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: var(--space-xl);
    align-items: start;
    margin-top: var(--space-md);
}
.about-text { color: var(--text-soft); max-width: var(--measure); }
.about-text p { margin-bottom: 1.2rem; font-size: 1.05rem; }
.about-text p strong { color: var(--text); }
.about-text code {
    background: var(--code-bg);
    padding: 0.12em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--text);
}

.tech-stack-container { margin-top: var(--space-md); display: grid; gap: var(--space-sm); }
.tech-category h3 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.6rem;
}
.tech-category ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.2rem;
}
.tech-category li {
    font-size: 0.9rem;
    color: var(--text-soft);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.tech-category li i { color: var(--accent); font-size: 0.7rem; }

/* Timeline */
.about-timeline h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.4rem;
    margin-bottom: var(--space-md);
}
.timeline {
    position: relative;
    border-left: 1px solid var(--rule);
    padding-left: var(--space-md);
}
.timeline-item { position: relative; margin-bottom: var(--space-md); }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
    position: absolute;
    left: calc(-1 * var(--space-md) - 4.5px);
    top: 7px;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--accent);
    transition: var(--transition);
}
.timeline-item:hover .timeline-dot { background: var(--accent); }
.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-mute);
    margin-bottom: 0.25rem;
}
.timeline-title {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 0.35rem;
}
.timeline-desc { font-size: 0.94rem; color: var(--text-soft); }

/* ==========================================
   CONTACT
   ========================================== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
    margin-top: var(--space-md);
}
.contact-info-panel h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.6rem;
    margin-bottom: var(--space-sm);
}
.contact-info-panel p { color: var(--text-soft); margin-bottom: 1rem; max-width: 40ch; }

.contact-details { margin-top: var(--space-md); display: flex; flex-direction: column; gap: var(--space-sm); }
.contact-details li { display: flex; align-items: center; gap: var(--space-sm); }
.contact-icon {
    width: 40px; height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid var(--rule);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
}
.contact-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-mute);
}
.contact-value { font-size: 0.95rem; color: var(--text); }
.contact-value:hover { color: var(--accent); }

/* Form */
.contact-form-panel {
    background: var(--bg-elev);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    box-shadow: var(--shadow);
}
.form-group-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: var(--space-sm); }
.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-soft);
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.7rem 0.85rem;
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group textarea { resize: vertical; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.4rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius);
    transition: var(--transition);
}
.btn-primary { background: var(--accent); color: var(--accent-contrast); }
.btn-primary:hover { filter: brightness(1.07); transform: translateY(-1px); }
.btn-block { width: 100%; justify-content: center; }

.form-status-message { margin-top: var(--space-sm); font-size: 0.9rem; text-align: center; }
.form-status-message.success { color: #15803d; }
[data-theme="dark"] .form-status-message.success { color: #6ee7a8; }
.form-status-message.error { color: #b91c1c; }

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    border-top: 1px solid var(--rule);
    margin-top: var(--space-xl);
    padding: var(--space-md) 0;
}
.footer-container {
    max-width: var(--page);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2xs);
    color: var(--text-mute);
    font-size: 0.82rem;
}
.footer-container span.highlight { color: var(--text); font-weight: 600; }
.footer-small { font-size: 0.75rem; }

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 980px) {
    /* No room for the TOC sidebar — drop to a single reading column */
    .reader-container { grid-template-columns: minmax(0, var(--measure)); }
    .reader-toc { display: none; }
}

@media (max-width: 880px) {
    .about-grid, .contact-container { grid-template-columns: 1fr; gap: var(--space-lg); }
}

@media (max-width: 560px) {
    .reader-pager { grid-template-columns: 1fr; }
    .pager-link.next { text-align: left; align-items: flex-start; }
    .pager-empty { display: none; }
    .newsletter-form { flex-direction: column; }
}

@media (max-width: 680px) {
    html { font-size: 16px; }
    :root { --navbar-height: 64px; }
    .content-wrapper { padding: 0 var(--space-sm); }
    .view-section { padding: var(--space-lg) 0 var(--space-md); }

    .nav-menu {
        position: fixed;
        inset: var(--navbar-height) 0 auto 0;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
        background: var(--bg);
        border-bottom: 1px solid var(--rule);
        padding: var(--space-md) var(--space-md) var(--space-lg);
        transform: translateY(-110%);
        transition: transform var(--transition);
        z-index: 99;
    }
    .nav-menu.active { transform: translateY(0); }
    .nav-link { font-size: 1.1rem; }
    .mobile-menu-toggle { display: flex; }
    .mobile-menu-toggle.active .hamburger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .mobile-menu-toggle.active .hamburger-bar:nth-child(2) { opacity: 0; }
    .mobile-menu-toggle.active .hamburger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .post-row { grid-template-columns: 1fr; gap: 0.6rem; }
    .post-row-meta { text-align: left; padding-top: 0; order: -1; }
    .post-row-meta .date { display: inline; }
    .post-row-meta .date::after { content: ' · '; color: var(--text-mute); }

    .form-group-row { grid-template-columns: 1fr; }
}