/* Shared styles for Leslie Cross letters — index + individual letter pages.
   Matches the rest of understand-veganism.com (Archivo Black + IBM Plex Mono + Inter). */

:root {
  --black: #1e1c1a;
  --white: #f7f3ee;
  --red: #c0392b;
  --gray: #7a7570;
  --border: #d8d2ca;
  --card: #f0ece5;
  --font-read: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; overflow-x: hidden; }
body { font-family: var(--font-mono); background: var(--white); color: var(--black); line-height: 1.75; }
img, iframe, video { max-width: 100%; }
a { color: var(--red); }

/* HERO (shared) */
.hero { display: flex; align-items: center; justify-content: center; background: var(--black); color: var(--white); padding: 2.75rem 2rem 1.5rem; border-bottom: 4px solid var(--red); }
.hero-inner { max-width: 900px; text-align: center; width: 100%; }
.hero-back { display: inline-block; margin-bottom: 0.75rem; font-family: 'Archivo Black', sans-serif; font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(247,243,238,0.65); text-decoration: none; border-bottom: 2px solid transparent; padding-bottom: 2px; transition: all 0.15s; }
.hero-back:hover { color: var(--red); border-bottom-color: var(--red); }
.hero-year { font-family: 'Archivo Black', sans-serif; font-size: 0.75rem; letter-spacing: 0.22em; color: var(--red); margin-bottom: 0.5rem; }
h1 { font-family: 'Archivo Black', sans-serif; font-size: clamp(1.7rem, 4.5vw, 2.8rem); line-height: 1.05; letter-spacing: -0.01em; margin-bottom: 0.5rem; }
h1 .red { color: var(--red); }
.hero-subtitle { font-family: var(--font-read); font-style: italic; font-size: clamp(0.9rem, 1.6vw, 1rem); color: rgba(247,243,238,0.7); margin-bottom: 0.75rem; }
.hero-meta { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; color: rgba(247,243,238,0.5); text-transform: uppercase; }

/* INDEX LIST */
section.body { padding: 1.75rem 2rem 2.25rem; border-bottom: 1px solid var(--border); }
.container { max-width: 1100px; margin: 0 auto; }
.intro-block { max-width: 680px; margin: 0 auto 1rem; font-family: var(--font-read); font-size: 0.88rem; line-height: 1.5; color: var(--gray); text-align: left; padding: 0 0 0.85rem; border-bottom: 1px solid var(--border); }
.intro-block p { margin-bottom: 0.55rem; }
.intro-block p.closer { font-family: 'Archivo Black', sans-serif; font-size: 0.88rem; line-height: 1.35; color: var(--red); margin-top: 0.4rem; margin-bottom: 0; letter-spacing: 0; }

.quotes-inline { font-family: var(--font-read); font-size: 0.92rem; color: var(--gray); margin-top: 0.55rem; }
.quotes-inline strong { color: var(--black); font-weight: 700; }
.quotes-inline a { color: var(--red); text-decoration: none; border-bottom: 1px solid var(--red); padding-bottom: 1px; transition: color 0.15s, border-color 0.15s; }
.quotes-inline a:hover { color: var(--black); border-bottom-color: var(--black); }
.lede { max-width: 720px; margin: 0 auto 1rem; font-family: var(--font-read); font-size: 0.85rem; line-height: 1.5; color: var(--gray); text-align: center; }
.lede p.archive-section-title { font-family: 'Archivo Black', sans-serif; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--black); margin: 0; line-height: 1.2; }
.lede:has(.archive-section-title) { margin: 0 auto 0.5rem; }
.lede .archive-section-title + .key { margin-top: 0.3rem; font-size: 0.68rem; letter-spacing: 0.12em; }
.lede .key { display: inline-block; margin-top: 0.5rem; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.05em; color: var(--gray); text-transform: uppercase; }
.lede .key .star { color: var(--red); font-size: 0.95rem; vertical-align: -0.05em; }

/* Single-column row list — one line per letter, like a sober index */
.letter-list { border-top: 1px solid var(--border); }
.letter-row { display: grid; grid-template-columns: 28px 70px 1fr auto; gap: 1.1rem; align-items: baseline; padding: 1.15rem 0.4rem 1.1rem; border-bottom: 1px solid var(--border); text-decoration: none; color: var(--black); transition: background 0.15s, padding-left 0.15s; }
.letter-row:hover { background: var(--card); padding-left: 0.8rem; }
.letter-row.star { background: rgba(192,57,43,0.04); }
.letter-row.star:hover { background: rgba(192,57,43,0.08); }
.letter-row-mark { font-family: 'Archivo Black', sans-serif; font-size: 1.15rem; line-height: 1; color: var(--border); text-align: center; align-self: center; }
.letter-row.star .letter-row-mark { color: var(--red); font-size: 1.3rem; }
.letter-row-year { font-family: 'Archivo Black', sans-serif; font-size: 0.95rem; color: var(--red); letter-spacing: 0.03em; line-height: 1; }
.letter-row-body { min-width: 0; }
.letter-row-title { font-family: 'Archivo Black', sans-serif; font-size: 1.1rem; line-height: 1.25; color: var(--black); }
.letter-row-desc { font-family: var(--font-read); font-size: 0.9rem; line-height: 1.5; color: var(--gray); margin-top: 0.25rem; }
.letter-row-actions { display: flex; flex-direction: column; gap: 4px; align-self: center; align-items: flex-end; }
.letter-row-arrow { font-family: 'Archivo Black', sans-serif; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); white-space: nowrap; cursor: pointer; display: inline-block; padding: 2px 0; transition: opacity 0.15s; }
.letter-row-arrow:hover { text-decoration: underline; text-underline-offset: 2px; }
.letter-row-arrow.watch { color: var(--gray); font-size: 0.46rem !important; letter-spacing: 0.04em !important; opacity: 0.85; font-weight: 400; }
.letter-row-arrow.watch::before { content: "▶"; font-size: 0.65em; margin-right: 3px; color: var(--red); vertical-align: 0.05em; }
.letter-row-arrow.watch:hover { color: var(--red); opacity: 1; }
.letter-row-arrow.listen { color: var(--black); }
.letter-row-arrow.listen::before { content: "♪"; font-size: 0.95em; margin-right: 4px; color: var(--red); vertical-align: -0.05em; }
.letter-row-arrow.download { color: var(--black); }
.letter-row-arrow.download::before { content: "↓"; font-size: 0.95em; margin-right: 4px; color: var(--red); vertical-align: -0.05em; }
@media (max-width: 600px) {
  /* Title + year + description stacked tight on the left; actions sit on the right. */
  .letter-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto auto auto;
    gap: 0 0.35rem;
    padding: 0.7rem 0.55rem;
    align-items: baseline;
  }
  .letter-row-body { display: contents; }
  .letter-row-mark { grid-column: 1; grid-row: 1 / 4; align-self: center; font-size: 0.55rem; line-height: 1; padding: 0; }
  .letter-row.star .letter-row-mark { font-size: 0.72rem; }
  .letter-row-title { grid-column: 2; grid-row: 1; font-size: 0.95rem; line-height: 1.25; padding-right: 0.5rem; }
  .letter-row-year { grid-column: 2; grid-row: 2; font-size: 0.62rem; line-height: 1; letter-spacing: 0.02em; margin-top: 0.18rem; }
  .letter-row-desc { grid-column: 2; grid-row: 3; font-size: 0.62rem; line-height: 1.4; color: var(--gray); margin-top: 0.22rem; padding-right: 0.5rem; }
  .letter-row-actions { grid-column: 3; grid-row: 1 / 4; align-self: center; flex-direction: column; gap: 2px; align-items: flex-end; padding-left: 0.25rem; }
  .letter-row-arrow { font-size: 0.55rem; letter-spacing: 0.06em; padding: 0; }
  .letter-row-arrow.watch::before,
  .letter-row-arrow.listen::before,
  .letter-row-arrow.download::before { font-size: 0.65em; margin-right: 2px; }
}

/* INDIVIDUAL LETTER BODY */
.letter-body { padding: 4rem 2rem 3rem; border-bottom: 1px solid var(--border); }
.letter-inner { max-width: 720px; margin: 0 auto; font-family: var(--font-read); font-size: 1.08rem; line-height: 1.85; color: var(--black); }
.letter-source { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); margin-bottom: 1rem; padding-bottom: 0.85rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 0.4rem 0.85rem; }
.letter-note { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--gray); background: var(--card); border-left: 3px solid var(--red); padding: 0.85rem 1.1rem; margin-bottom: 2.5rem; line-height: 1.55; }
.letter-listen-top { display: inline-flex; align-items: center; gap: 0.3rem; font-family: 'Archivo Black', sans-serif; font-size: 0.6rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--red); text-decoration: none; padding: 0.28rem 0.65rem; border: 1.5px solid var(--red); margin: 0; transition: background 0.15s, color 0.15s; cursor: pointer; white-space: nowrap; flex-shrink: 0; }
.letter-listen-top::before { content: "♪"; font-size: 1.1em; line-height: 1; }
.letter-listen-top:hover { background: var(--red); color: var(--white); }
.letter-inner h2 { font-family: 'Archivo Black', sans-serif; font-size: 1.4rem; line-height: 1.2; margin: 2.5rem 0 1rem; color: var(--black); }
.letter-inner p { margin-bottom: 1.2rem; }
.letter-inner p.intro { font-family: 'Archivo Black', sans-serif; font-size: 1.05rem; line-height: 1.6; padding-bottom: 1.3rem; border-bottom: 1px solid var(--border); margin-bottom: 1.8rem; text-transform: none; }
.letter-inner blockquote { padding-left: 1.5rem; border-left: 3px solid var(--red); margin: 1.5rem 0; font-style: italic; color: var(--gray); }
.letter-inner em { font-style: italic; }
.letter-inner .divider { text-align: center; margin: 2rem 0; color: var(--red); font-family: 'Archivo Black', sans-serif; letter-spacing: 0.4em; }
.letter-inner .footnote { font-size: 0.85rem; color: var(--gray); border-top: 1px solid var(--border); padding-top: 1rem; margin-top: 2.5rem; }
.letter-inner .footnote p { margin-bottom: 0.6rem; }
.letter-inner .sig { text-align: right; font-family: var(--font-mono); font-size: 0.85rem; color: var(--gray); margin-top: 1.5rem; letter-spacing: 0.04em; }
.letter-inner .letter-download { text-align: right; margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px dashed var(--border); }
.letter-inner .letter-download a { display: inline-block; font-family: 'Archivo Black', sans-serif; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); text-decoration: none; border: 2px solid var(--red); padding: 0.55rem 1.1rem; transition: all 0.15s; }
.letter-inner .letter-download a:hover { background: var(--red); color: var(--white); }

/* Audio / video reading section */
.letter-audio { padding: 3.5rem 2rem; background: var(--black); color: var(--white); border-top: 4px solid var(--red); }
.letter-audio-inner { max-width: 720px; margin: 0 auto; }
.letter-audio-eyebrow { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--red); margin-bottom: 0.6rem; text-align: center; }
.letter-audio-title { font-family: 'Archivo Black', sans-serif; font-size: clamp(1.3rem, 3vw, 1.7rem); line-height: 1.2; color: var(--white); text-align: center; margin-bottom: 0.6rem; }
.letter-audio-title em { color: var(--red); font-style: normal; }
.letter-audio-sub { font-family: var(--font-read); font-size: 0.95rem; color: rgba(247,243,238,0.7); text-align: center; margin-bottom: 1.75rem; line-height: 1.5; }
.vWrap { position: relative; width: 100%; aspect-ratio: 16/9; border: 3px solid var(--white); background: #000; overflow: hidden; }
.v-facade { position: absolute; inset: 0; cursor: pointer; background: #000; display: block; }
.v-facade img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.v-title { position: absolute; top: 0; left: 0; right: 0; z-index: 2; padding: 0.7rem 1rem 1.6rem; background: linear-gradient(to bottom, rgba(0,0,0,0.85), rgba(0,0,0,0)); color: var(--white); font-family: 'Archivo Black', sans-serif; font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; text-align: center; pointer-events: none; }
.v-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 60px; height: 60px; background: var(--red); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.4); transition: transform 0.2s; }
.v-facade:hover .v-btn, .v-facade:focus-visible .v-btn { transform: translate(-50%, -50%) scale(1.12); }

/* Audio reading — uses the same dark "letter-audio" wrapper as the video version */
.letter-audio audio { width: 100%; max-width: 540px; display: block; margin: 0 auto; }
.letter-audio-note { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.04em; color: rgba(247,243,238,0.5); text-align: center; margin-top: 1rem; max-width: 540px; margin-left: auto; margin-right: auto; line-height: 1.5; }

/* PREV / NEXT NAV */
.letter-nav { background: var(--card); padding: 2rem; display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; max-width: 100%; }
.letter-nav a { font-family: 'Archivo Black', sans-serif; font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--black); text-decoration: none; border: 2px solid var(--black); padding: 0.7rem 1rem; background: var(--white); transition: all 0.15s; display: inline-block; }
.letter-nav a:hover { background: var(--red); color: var(--white); border-color: var(--red); }
.letter-nav .prev { justify-self: start; }
.letter-nav .next { justify-self: end; text-align: right; }
.letter-nav .all { justify-self: center; }
.letter-nav .disabled { opacity: 0.3; pointer-events: none; }
@media (max-width: 600px) {
  .letter-nav { grid-template-columns: 1fr; }
  .letter-nav .prev, .letter-nav .next, .letter-nav .all { justify-self: stretch; text-align: center; }
}

/* CTAs */
.actions { padding: 3rem 2rem; text-align: center; background: var(--white); }
.actions a { display: inline-block; margin: 0.4rem; padding: 0.85rem 1.5rem; background: var(--white); color: var(--black); border: 2px solid var(--black); font-family: 'Archivo Black', sans-serif; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; text-decoration: none; transition: all 0.2s; }
.actions a:hover { background: var(--red); color: var(--white); border-color: var(--red); }
.actions a.primary { background: var(--red); color: var(--white); border-color: var(--red); }
.actions a.primary:hover { background: var(--white); color: var(--black); border-color: var(--black); }
.actions a.download { border-style: dashed; }
.actions a.download:hover { border-style: solid; }

footer { padding: 2rem; text-align: center; font-size: 0.85rem; color: var(--gray); }
footer a { color: var(--gray); text-decoration: underline; text-underline-offset: 3px; }
footer a:hover { color: var(--red); }

.intro-toggle { display: none; background: none; border: 0; color: var(--red); font-family: 'Archivo Black', sans-serif; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; padding: 0.25rem 0; margin-top: 0.25rem; }
.intro-toggle:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Mobile compaction — keep the list near the top */
@media (max-width: 600px) {
  /* Letter pages keep a small hero (title is needed there). */
  .hero { padding: 1rem 1rem 0.85rem; }
  .hero-back { margin-bottom: 0.5rem; font-size: 0.6rem; letter-spacing: 0.14em; }
  .hero-year { font-size: 0.65rem; letter-spacing: 0.18em; margin-bottom: 0.3rem; }
  h1 { font-size: 1.6rem; line-height: 1.05; margin-bottom: 0.3rem; }
  .hero-subtitle { font-size: 0.82rem; margin-bottom: 0.4rem; }
  .hero-meta { font-size: 0.65rem; }
  section.body { padding: 1rem 1rem 1.75rem; }
  .letter-body { padding: 2rem 0.9rem 2.5rem; }
  .letter-inner { font-size: 1rem; line-height: 1.7; }
  .letter-inner p { margin-bottom: 0.95rem; font-size: 1rem; line-height: 1.7; }
  .letter-inner blockquote { padding-left: 1rem; margin: 1.25rem 0; }
  .letter-inner h2 { font-size: 1.2rem; margin: 1.8rem 0 0.75rem; }
  .letter-source { font-size: 0.65rem; margin-bottom: 0.85rem; padding-bottom: 0.75rem; }
  .letter-note { font-size: 0.72rem; padding: 0.75rem 0.95rem; margin-bottom: 1.75rem; }
  .intro-block { font-size: 0.85rem; line-height: 1.5; margin-bottom: 0.75rem; padding-bottom: 0.7rem; }
  .intro-block p { margin-bottom: 0.4rem; }
  .intro-block p.closer { font-size: 0.82rem; margin-top: 0.3rem; }
  /* Collapsed intro by default on mobile */
  .intro-block.collapsible .intro-rest { display: none; }
  .intro-block.collapsible.is-open .intro-rest { display: inline; }
  .intro-block.collapsible.is-open p.closer.intro-rest { display: block; }
  .intro-block.collapsible .intro-toggle { display: inline-block; }
  .intro-block.collapsible.is-open .intro-toggle { display: none; }
  .quotes-inline { font-size: 0.7rem; margin-top: 0.4rem; }
  .lede { margin-bottom: 0.75rem; }
}

/* Archive landing only — drop the "Founding Letters" hero block on mobile and
   let the intro paragraph sit in the dark area instead. */
@media (max-width: 600px) {
  body.archive .hero .hero-back,
  body.archive .hero .hero-year,
  body.archive .hero h1 { display: none; }
  body.archive .hero { padding: 0; border-bottom: none; min-height: 0; }
  body.archive section.body { padding-top: 0; padding-left: 0; padding-right: 0; }
  body.archive section.body .container { padding: 0; }
  body.archive .intro-block {
    background: var(--black);
    color: rgba(247,243,238,0.82);
    margin: 0 0 0.85rem;
    padding: 0.85rem 0.85rem 0.75rem;
    border-bottom: 3px solid var(--red);
    font-size: 0.7rem;
    line-height: 1.5;
    letter-spacing: 0.01em;
  }
  body.archive .intro-block p { margin-bottom: 0.35rem; font-size: 0.7rem; line-height: 1.5; letter-spacing: 0.01em; }
  body.archive .intro-block p.closer { color: var(--red); font-size: 0.7rem; line-height: 1.4; margin-top: 0.3rem; letter-spacing: 0.02em; font-weight: 700; }
  /* Show full text on mobile — no collapsing, no Read more button */
  body.archive .intro-block.collapsible .intro-rest { display: inline; }
  body.archive .intro-block.collapsible p.closer.intro-rest { display: block; }
  body.archive .intro-block.collapsible .intro-toggle { display: none; }
  body.archive .quotes-inline { color: rgba(247,243,238,0.7); margin-top: 0.4rem; font-size: 0.68rem; letter-spacing: 0.02em; }
  body.archive .quotes-inline strong { color: var(--white); }
  body.archive .quotes-inline a { color: var(--red); border-bottom-color: var(--red); }
  body.archive .quotes-inline a:hover { color: var(--white); border-bottom-color: var(--white); }
  body.archive .lede,
  body.archive .letter-list { margin-left: 1rem; margin-right: 1rem; }
}

/* Video modal — opens in-place when a row's "Watch →" is tapped */
body.video-modal-open { overflow: hidden; }
.video-modal { position: fixed; inset: 0; z-index: 2000; background: rgba(30,28,26,0.94); display: flex; align-items: center; justify-content: center; padding: 4vh 4vw; backdrop-filter: blur(4px); }
.video-modal[hidden] { display: none; }
.video-modal-close { position: absolute; top: 16px; right: 16px; width: 44px; height: 44px; background: var(--white); color: var(--black); border: 3px solid var(--black); font-family: 'Archivo Black', sans-serif; font-size: 24px; line-height: 1; cursor: pointer; transition: background 0.15s, color 0.15s; padding: 0; z-index: 2; }
.video-modal-close:hover { background: var(--red); color: var(--white); border-color: var(--red); }
.video-modal-stage { width: 100%; max-width: 960px; }
.video-modal-title { font-family: 'Archivo Black', sans-serif; font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--red); margin-bottom: 0.85rem; text-align: center; }
.video-modal-frame { width: 100%; aspect-ratio: 16/9; background: #000; border: 3px solid var(--white); overflow: hidden; }
.video-modal-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
@media (max-width: 600px) { .video-modal { padding: 7vh 3vw 3vh; } .video-modal-close { top: 8px; right: 8px; width: 40px; height: 40px; font-size: 20px; } .video-modal-title { font-size: 0.7rem; letter-spacing: 0.15em; } }

/* Audio modal — smaller than the video modal, no 16:9 frame */
.audio-modal { position: fixed; inset: 0; z-index: 2000; background: rgba(30,28,26,0.94); display: flex; align-items: center; justify-content: center; padding: 4vh 4vw; backdrop-filter: blur(4px); }
.audio-modal[hidden] { display: none; }
.audio-modal-close { position: absolute; top: 16px; right: 16px; width: 44px; height: 44px; background: var(--white); color: var(--black); border: 3px solid var(--black); font-family: 'Archivo Black', sans-serif; font-size: 24px; line-height: 1; cursor: pointer; transition: background 0.15s, color 0.15s; padding: 0; z-index: 2; }
.audio-modal-close:hover { background: var(--red); color: var(--white); border-color: var(--red); }
.audio-modal-stage { width: 100%; max-width: 540px; background: var(--black); border: 3px solid var(--red); padding: 2rem 1.5rem 1.75rem; text-align: center; }
.audio-modal-eyebrow { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: rgba(247,243,238,0.65); margin-bottom: 0.45rem; }
.audio-modal-title { font-family: 'Archivo Black', sans-serif; font-size: clamp(1.2rem, 3vw, 1.5rem); line-height: 1.2; color: var(--red); margin-bottom: 1.25rem; }
.audio-modal audio { width: 100%; display: block; }
.audio-modal-note { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.04em; color: rgba(247,243,238,0.5); margin-top: 0.85rem; line-height: 1.5; }
@media (max-width: 600px) { .audio-modal { padding: 7vh 3vw 3vh; } .audio-modal-close { top: 8px; right: 8px; width: 40px; height: 40px; font-size: 20px; } .audio-modal-stage { padding: 1.5rem 1rem 1.25rem; } }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } html { scroll-behavior: auto; } }