/* =========================================================================
   LazyBlog — standalone pages
   Archive (heatmap + log), Search, 404, Series index.
   ========================================================================= */

/* ---------- 404 page ---------- */
.not-found-section {
    text-align: center;
    padding-top: 24px;
}
.not-found-section .callsign,
.not-found-section .section-tag { text-align: center; }
.not-found-section p { margin: 14px 0; }

/* Retro block-art 404 — phosphor glow, no border, inline-block so the
   monospaced pre stays narrow and centered on its own line. */
.ascii-404 {
    display: inline-block;
    background: transparent;
    border: none;
    padding: 0;
    margin: 24px 0 12px;
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    font-size: clamp(7px, 1.6vw, 12px);
    line-height: 1.05;
    letter-spacing: 0;
    color: var(--primary);
    text-shadow:
        0 0 6px var(--primary),
        0 0 18px var(--primary-glow-strong),
        0 0 36px var(--primary-glow);
    white-space: pre;
    overflow-x: auto;
    user-select: none;
    /* Subtle flicker matches the home-page CRT vibe */
    animation: ascii-404-flicker 6s infinite;
}
@keyframes ascii-404-flicker {
    0%, 96%, 100% { opacity: 1; }
    97% { opacity: 0.85; }
    98% { opacity: 1; }
    99% { opacity: 0.92; }
}
@media (prefers-reduced-motion: reduce) {
    .ascii-404 { animation: none; }
}

.not-found-subtitle {
    margin-top: 8px;
    margin-bottom: 4px;
}

/* ---------- Archive page (transmission log heatmap) ----------
   GitHub-style activity grid: columns = weeks (Mon-start), rows = days.
   Cell intensity reflects post count for that day. Clicking a single-post
   cell jumps to the post; multi-post cells anchor to the date row in the
   list below. */
.archive-page { font-family: 'Share Tech Mono', monospace; }
.archive-title { font-family: 'VT323', monospace; color: var(--primary); margin: 8px 0 4px; }
.archive-range {
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 2px;
    margin: 0 0 24px;
}

.heatmap-wrap {
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 16px;
    margin: 16px 0 40px;
    overflow-x: auto;
}
.heatmap-months {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 14px;
    gap: 3px;
    margin-left: 28px;            /* match .heatmap-dow width */
    margin-bottom: 6px;
    color: var(--text-dim);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    min-height: 14px;
}
.heatmap-month-label { white-space: nowrap; }
.heatmap-body { display: flex; gap: 4px; }
.heatmap-dow {
    display: grid;
    grid-template-rows: repeat(7, 14px);
    gap: 3px;
    color: var(--text-dim);
    font-size: 9px;
    letter-spacing: 1px;
    text-transform: uppercase;
    width: 24px;
    align-items: center;
}
.heatmap-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 14px;
    gap: 3px;
}
.heatmap-week {
    display: grid;
    grid-template-rows: repeat(7, 14px);
    gap: 3px;
}
.heatmap-cell {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    display: block;
    text-decoration: none;
    transition: outline-color 0.15s, box-shadow 0.15s;
    outline: 1px solid transparent;
}
.heatmap-cell.cell-outside { background: transparent; }
.heatmap-cell.cell-0       { background: var(--panel); outline-color: var(--border); }
.heatmap-cell.cell-1       { background: var(--primary-dim); }
.heatmap-cell.cell-2       { background: var(--primary); opacity: 0.7; }
.heatmap-cell.cell-3       {
    background: var(--primary);
    box-shadow: 0 0 6px var(--primary-glow-strong);
}
a.heatmap-cell:hover {
    outline-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-dim);
}
.heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 10px;
    color: var(--text-dim);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.heatmap-legend .heatmap-cell { width: 12px; height: 12px; }

.archive-year { margin: 24px 0; }
.archive-year-label {
    color: var(--accent);
    font-family: 'Share Tech Mono', monospace;
    font-size: 14px;
    letter-spacing: 3px;
    margin: 12px 0 8px;
}
.archive-list { list-style: none; margin: 0; padding: 0; }
.archive-item {
    display: flex;
    gap: 16px;
    align-items: baseline;
    padding: 6px 0;
    border-bottom: 1px dashed var(--border);
    scroll-margin-top: 24px;
}
.archive-item:target {
    background: var(--primary-glow);
    padding-left: 8px;
    margin-left: -8px;
}
.archive-date {
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 1px;
    min-width: 92px;
    flex-shrink: 0;
}
.archive-link {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px dashed transparent;
    font-family: 'VT323', monospace;
    font-size: 22px;
    line-height: 1.2;
}
.archive-link:hover {
    color: var(--primary);
    border-bottom-color: var(--primary-dim);
    text-shadow: 0 0 6px var(--primary-glow-strong);
}
.archive-icon { margin-right: 4px; }

/* Archive rows are date + title + series-chip on a single flex row. On
   narrow viewports the chip on the right squeezes long titles into
   three+ line wraps that look broken. Hide the chip below 600px — the
   series info is still visible on the post page itself, on /series,
   and on the desktop archive. */
@media (max-width: 600px) {
    .archive-item .post-series-tag { display: none; }
}

/* ---------- Search page ----------
   Server-rendered search; no JS. Diacritic-insensitive (handled in PHP);
   matched terms wrapped in <mark> by the view. Input/button styled to
   feel like a terminal command prompt. */
.search-page { font-family: 'Share Tech Mono', monospace; }
.search-form {
    display: flex;
    gap: 8px;
    margin: 16px 0 24px;
    flex-wrap: wrap;
}
.search-input {
    flex: 1;
    min-width: 200px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    color: var(--text);
    font-family: 'Share Tech Mono', monospace;
    font-size: 16px;
    padding: 12px 16px;
    letter-spacing: 1px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.search-input:focus {
    border-color: var(--primary-dim);
    border-left-color: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
}
.search-input::placeholder { color: var(--text-dim); }
.search-submit {
    background: var(--panel);
    border: 1px solid var(--accent-dim);
    color: var(--accent);
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    letter-spacing: 2px;
    padding: 0 18px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.search-submit:hover {
    background: var(--primary-glow);
    border-color: var(--accent);
    color: var(--primary);
}
.search-hint, .search-empty, .search-meta {
    color: var(--text-dim);
    font-size: 13px;
    letter-spacing: 1px;
}
.search-empty { color: var(--accent); }
.search-meta { margin: 16px 0; }

.search-results { list-style: none; margin: 0; padding: 0; }
.search-item {
    padding: 16px 0;
    border-bottom: 1px dashed var(--border);
}
.search-item:last-child { border-bottom: none; }
.search-result-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 6px;
    font-size: 12px;
}
/* Search result tags mirror the tag-page treatment — plain text chips
   (no box / no border) so the page reads as one consistent typographic
   block instead of a row of competing pills. */
.search-result-meta .tag-chip {
    border: 0;
    background: transparent;
    padding: 0;
    color: var(--primary-dim);
    transition: color 0.18s ease, text-shadow 0.18s ease;
}
.search-result-meta .tag-chip:hover {
    background: transparent;
    color: var(--primary);
    text-shadow: 0 0 6px var(--primary-glow-strong);
}
.search-date { color: var(--text-dim); letter-spacing: 1px; }
.search-title-link { text-decoration: none; display: block; }
.search-title {
    font-family: 'VT323', monospace;
    font-size: 28px;
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: 2px;
}
.search-title-link:hover .search-title {
    text-shadow: 0 0 10px var(--primary), 0 0 24px var(--primary-glow-strong);
}
.search-icon { margin-right: 4px; }
.search-snippet {
    color: var(--text);
    font-family: 'Play', system-ui, sans-serif;
    margin: 6px 0 0;
    line-height: 1.5;
    font-size: 14px;
}
/* Same vertical rhythm as the snippet so the protected hits don't
   collapse against the title row. The pill carries its own margins. */
.search-lock-row { margin: 6px 0 0; }
.search-lock-row .post-lock { margin-left: 0; }
/* <mark> highlight — phosphor-block on matched terms, similar to the
   active-TOC item but inline. */
.search-page mark {
    background: var(--primary);
    color: var(--bg);
    padding: 0 3px;
    text-shadow: none;
    border-radius: 1px;
}

/* ---------- /series/{slug} page ---------- */
.series-page { font-family: 'Share Tech Mono', monospace; }
.series-page-title {
    font-family: 'VT323', monospace;
    color: var(--primary);
    margin: 8px 0 4px;
}
.series-meta {
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 2px;
    margin: 0 0 24px;
}
.series-meta code {
    font-size: 12px;
    padding: 1px 6px;
}
.series-list {
    list-style: none !important;
    margin: 0;
    padding: 0;
}
.series-item {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
}
.series-item::marker { content: ''; }
.series-item:last-child { border-bottom: none; }
.series-part-no {
    font-family: 'Share Tech Mono', monospace;
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 2px;
    min-width: 32px;
    flex-shrink: 0;
    text-shadow: 0 0 4px var(--accent-dim);
}
.series-item-body { flex: 1; min-width: 0; }
.series-item-title {
    font-family: 'VT323', monospace;
    font-size: 22px;
    color: var(--primary);
    text-decoration: none;
    line-height: 1.2;
}
.series-item-title:hover {
    text-shadow: 0 0 6px var(--primary), 0 0 14px var(--primary-glow-strong);
    /* Dashed underline matches the global `a` link affordance, so series
       part titles still signal "clickable" on themes (p7, p11) where the
       site-wide text-shadow strip removes the glow cue. Home post titles
       intentionally do NOT get this (operator preference) — series rows
       sit denser so the underline reads as helpful structure there, not
       noise. */
    text-decoration: underline;
    text-decoration-style: dashed;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}
.series-item-meta {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-dim);
}
/* Prose surface — opt back into Play (the universal body face that
   ships full Vietnamese glyph coverage). The ancestor .series-page
   forces Share Tech Mono which has no VN diacritics, so any tone
   marks fall through to the system monospace fallback and mid-word
   the typeface visibly switches. */
.series-summary {
    color: var(--text);
    font-family: 'Play', system-ui, sans-serif;
    /* Bump above the .series-item-meta 12px so the description reads
       as content sitting next to the date stamp (which stays small). */
    font-size: 14px;
    line-height: 1.5;
}
.series-icon { margin-right: 4px; }

/* ---------- /series index — Jukebox-style card grid ----------
   Each card: typographic cover (VT323 title fills the cover area) +
   part-count chip at top-right + repeated title + date-range meta.
   No images — the site doesn't store per-series covers, so the
   cover IS the typography. */
.series-card-grid {
    list-style: none !important;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    padding: 0;
    margin: 24px 0 0;
}
@media (max-width: 1024px) {
    .series-card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
    .series-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 420px) {
    .series-card-grid { grid-template-columns: 1fr; }
}
.series-card {
    border: 1px solid var(--border);
    border-radius: 3px;
    overflow: hidden;
    background: var(--bg);
    transition: border-color 0.22s ease, box-shadow 0.22s ease;
    /* Flex column so the inner link can stretch and pin the date to the
       bottom regardless of how short the description is. */
    display: flex;
}
.series-card:hover {
    border-color: var(--primary-dim);
    box-shadow: 0 0 18px var(--primary-glow);
}
.series-card-link {
    display: flex;
    flex-direction: column;
    width: 100%;
    text-decoration: none;
    color: inherit;
}
.series-card-cover {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--panel);
    display: flex;
    align-items: center;
    justify-content: center;
}
.series-card-cover-qr {
    /* SVG inherits color via fill="currentColor" — `color: var(--primary)`
       tints the QR to the active theme. width:100% lets the QR fill the
       square cover area minus the padding. */
    display: block;
    width: 78%;
    color: var(--primary);
    line-height: 0;
}
.series-card-cover-qr svg {
    width: 100%;
    height: auto;
    display: block;
}
/* Centre overlay — deterministic mark per series (greek, leet, glyph).
   Sits on top of the QR, masks ~20% of the modules. ECC H lets the QR
   still decode despite the overlay. */
.series-card-cover-mark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 20%;
    min-height: 20%;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--panel);
    border: 1px solid var(--primary);
    color: var(--primary);
    font-family: 'VT323', monospace;
    font-size: clamp(14px, 1.6vw, 22px);
    letter-spacing: 1px;
    line-height: 1;
    text-shadow:
        0 0 4px var(--primary),
        0 0 12px var(--primary-glow-strong);
}
.series-card-tag {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 1;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--accent-dim);
    padding: 2px 8px;
    border-radius: 2px;
    letter-spacing: 1px;
}
/* Manifest-backed cover: Atkinson dither pattern flowing the theme color
   through CSS mask. Same currentColor trick QR uses, so the 6 themes auto-
   tint without runtime overrides. */
.series-card-cover-dot {
    display: block;
    width: 100%;
    height: 100%;
    background-color: currentColor;
    -webkit-mask-image: var(--dot-mask);
    mask-image: var(--dot-mask);
    -webkit-mask-size: cover;
    mask-size: cover;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    color: var(--primary);
}
@supports not (mask-image: url('')) {
    /* Old browser without mask-image — hide the dot layer so the markup
       below it (which we don't render when cover exists) doesn't show,
       leaving the panel background as a safe fallback. */
    .series-card-cover-dot { display: none; }
}
/* Hover affordance: peel the theme-tint mask off the cover and surface
   the underlying 1-bit Bayer render in solid black-on-white — the same
   look as the reference dither aesthetic the cover was authored against.
   Scoped via :has() so the QR + greek-glyph fallback (rendered when no
   cover.webp exists) doesn't flash white on hover. (hover: hover) guards
   the rule from touch devices where :hover sticks after a tap. */
.series-card-cover,
.series-card-cover-dot {
    transition: background-color 0.18s ease, color 0.18s ease;
}
@media (hover: hover) {
    .series-card-cover:has(.series-card-cover-dot):hover {
        background-color: #fff;
    }
    .series-card-cover:has(.series-card-cover-dot):hover .series-card-cover-dot {
        color: #000;
    }
}
.series-card-body {
    padding: 10px 12px 14px;
    /* Fill remaining height so margin-top:auto on the meta row pins the
       date to the bottom of every card, keeping the grid baseline aligned
       even when descriptions wrap to different line counts. */
    display: flex;
    flex-direction: column;
    flex: 1;
}
.series-card-title {
    font-family: 'VT323', monospace;
    font-size: 18px;
    color: var(--primary);
    line-height: 1.2;
    margin: 0 0 2px;
    letter-spacing: 1px;
}
.series-card-link:hover .series-card-title {
    text-shadow: 0 0 8px var(--primary-glow-strong);
}
.series-card-desc {
    /* Play has full Vietnamese diacritic coverage; the Share Tech Mono
       face we use for terminal chrome does not, so VN tone marks fall
       through to the system monospace fallback mid-word otherwise. */
    font-family: 'Play', system-ui, sans-serif;
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
    margin: 4px 0 6px;
    /* Two-line clamp keeps card height predictable across descriptions. */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.series-card-meta {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
    /* Pin to bottom of the flex column so every card's date sits on
       the same baseline regardless of description length. */
    margin-top: auto;
    padding-top: 6px;
}
/* Detail header — cover inline-left, title/desc/meta stack to the right.
   Two-column grid collapses to single-column on narrow viewports so the
   cover and metadata stay legible without a giant centered image
   dominating the page. Both columns explicitly text-align: left + justify-
   self: start to override any header/main centering that might leak in. */
.series-detail-header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    /* Pull tight to the top of <main> — the page header band already
       provides separation from above, so the title/cover row doesn't
       need its own top margin. Bottom margin keeps a small gap above
       the posts list. */
    margin: -12px 0 12px;
    align-items: start;
    justify-items: start;
    text-align: left;
}
@media (min-width: 1200px) {
    .series-detail-header { margin-top: -20px; }
}
.series-detail-header.has-cover {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 22px;
}
@media (max-width: 640px) {
    /* Stay 2-column on mobile — shrink the cover instead of collapsing
       to a stack. Keeps the visual relationship "cover ↔ meta" intact
       on narrow viewports. */
    .series-detail-header.has-cover {
        grid-template-columns: 120px minmax(0, 1fr);
        gap: 14px;
    }
}
.series-detail-cover {
    position: relative;
    width: 200px;
    aspect-ratio: 1 / 1;
    color: var(--primary);
    border: 1px solid var(--border);
    padding: 6px;
    background: var(--panel);
    justify-self: start;
    margin: 0;
    overflow: hidden;
}
.series-detail-cover-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 1;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--accent-dim);
    padding: 2px 8px;
    border-radius: 2px;
    letter-spacing: 1px;
}
@media (max-width: 640px) {
    .series-detail-cover {
        width: 120px;
        padding: 4px;
    }
}
.series-detail-cover-dot,
.series-detail-cover-qr {
    display: block;
    width: 100%;
    height: 100%;
    color: var(--primary);
}
.series-detail-cover-dot {
    background-color: currentColor;
    -webkit-mask-image: var(--dot-mask);
    mask-image: var(--dot-mask);
    -webkit-mask-size: cover;
    mask-size: cover;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
}
/* Mirrors the .series-card-cover hover behaviour — see the comment block
   above the card rule. Same :has() + (hover: hover) scoping. */
.series-detail-cover,
.series-detail-cover-dot {
    transition: background-color 0.18s ease, color 0.18s ease;
}
@media (hover: hover) {
    .series-detail-cover:has(.series-detail-cover-dot):hover {
        background-color: #fff;
    }
    .series-detail-cover:has(.series-detail-cover-dot):hover .series-detail-cover-dot {
        color: #000;
    }
}
.series-detail-cover-qr {
    position: relative;
    line-height: 0;
}
.series-detail-cover-qr svg {
    width: 100%;
    height: 100%;
    display: block;
}
.series-detail-cover-qr .series-detail-cover-mark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: 24%;
    min-height: 24%;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--panel);
    border: 1px solid var(--primary);
    color: var(--primary);
    font-family: 'VT323', monospace;
    font-size: clamp(14px, 1.6vw, 22px);
    letter-spacing: 1px;
    line-height: 1;
}
.series-detail-meta {
    min-width: 0;
    text-align: left;
    justify-self: stretch;
    align-self: start;
    /* Cancel any inherited top margin on the first child so the title
       hugs the cover top edge instead of leaving a gap. */
    margin-top: 0;
}
.series-detail-meta > :first-child {
    margin-top: 0 !important;
}
.series-detail-meta .series-page-title {
    margin: 0 0 10px;
    text-align: left;
    /* VT323 has a generous ascent above cap height — without a negative
       top offset the title's visual top sits 6-10px below the cover's
       top edge despite both grid items being `align-items: start`. Pull
       the line box up so the highlight block's top matches the cover's
       border y. */
    line-height: 1;
    padding-top: 0;
    margin-top: -8px;
}
/* Selection-highlight treatment — inverted block that wraps tight around
   the text on each line. box-decoration-break: clone keeps the background
   from collapsing into one giant rectangle on multi-line titles, so
   wrapped titles read as multiple "selected" segments stacked, matching
   the real text-selection visual the user wants. */
.series-detail-meta .series-page-title-mark {
    display: inline;
    background-color: var(--primary);
    color: var(--bg);
    padding: 2px 10px 4px;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    /* Strip the global h1/h2 RGB-split text-shadow — it reads as chromatic
       noise on the inverted block instead of phosphor glow. */
    text-shadow: none;
    box-shadow: 0 0 16px var(--primary-glow);
}
.series-detail-desc {
    font-family: 'Share Tech Mono', monospace;
    font-size: 14px;
    color: var(--text);
    line-height: 1.55;
    max-width: 60ch;
    margin: 8px 0 12px;
    text-align: left;
}
.series-detail-meta .series-meta {
    margin: 0;
    text-align: left;
}
.series-detail-actions {
    margin-top: 32px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}