/* ============================================================
   Letters (the blog that is never called a blog).
   Loads AFTER main.css. Dark reading world, Oneness-adjacent.
   Adapted from design-system letters/letters.css with committed
   variants baked in: paper=wine, letter column=standard.
   (Original with all variants: reference/design-drop/letters/)

   Production <html data-*> mechanisms (all deliberate, keep):
     data-index:   lines | desk   (index A/B toggle — visitor-facing
                                   easter egg, persists in localStorage)
     data-size:    s | m | l      (letter reader type size, A/A/A)
     data-pointer: newsletter | coherence  (end-of-letter pointer,
                                   picked per letter in its markup)
   ============================================================ */

/* ---------- dark tokens (Oneness palette family, wine paper) ---------- */
body.page-letters {
  --paper:      rgb(26, 10, 11);
  --paper-deep: rgb(18, 7, 8);
  --wine:       rgb(133, 66, 72);
  --wine-soft:  rgb(189, 124, 130);   /* labels & accents — AA on wine */
  --cream-soft: rgba(236, 231, 217, .82);
  background: var(--paper); color: var(--cream);
}
body.page-letters .site-header { background: var(--paper); }
body.page-letters main a:not(.btn) { color: var(--wine-soft); }
body.page-letters main a:not(.btn):hover { opacity: .75; }

.l-eyebrow { letter-spacing: .16em; text-transform: uppercase; color: var(--wine-soft); }

/* ---------- quiet subscribe capture — the real Beehiiv embed ---------- */
.l-capture { width: 320px; max-width: 100%; }
.l-capture iframe { display: block; width: 100%; height: 52px; border: 0; }

/* ============================================================
   A · THE INDEX — two live forms behind the faint A/B toggle:
     data-index="lines" — first lines fading out (default)
     data-index="desk"  — overlapping letterhead sheets
   ============================================================ */
.l-head {
  padding: calc(var(--header-h) + 96px) 24px 56px;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.l-head h1 { color: var(--cream); }
.l-head .tagline { font-size: 20px; color: var(--cream-soft); }

/* on-page A/B view toggle — intentionally faint, top right */
.l-viewtoggle {
  position: fixed; top: calc(var(--header-h) + 14px); right: 24px; z-index: 10;
  display: flex; align-items: center; gap: 4px;
  font-family: var(--font-ui); font-size: 12px; letter-spacing: .04em;
  color: var(--cream); opacity: .35;
  transition: opacity .25s ease;
}
.l-viewtoggle:hover, .l-viewtoggle:focus-within { opacity: .9; }
.l-viewtoggle button { background: none; border: 0; color: inherit; font: inherit; cursor: pointer; padding: 8px 4px; }
.l-viewtoggle button[aria-pressed="true"] { text-decoration: underline; text-underline-offset: 4px; }
.l-viewtoggle .sep { opacity: .5; }

.l-index { max-width: 660px; margin: 0 auto; padding: 0 24px 88px; }

/* subscribe capture below the stack */
.l-sub { display: flex; justify-content: center; padding: 0 24px 140px; }

/* "the latest" pill */
.l-pill {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 999px;
  border: 1px solid rgba(189, 124, 130, .5);
  color: var(--wine-soft);
  font-size: 11px; letter-spacing: .12em;
}

/* shared entry bones */
.l-entry { display: block; }
.l-entry__date {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-ui); font-size: 13px; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase; color: var(--wine-soft);
}
.l-entry h2 { font-family: var(--font-display); font-size: 30px; font-weight: 400; letter-spacing: -0.03em; line-height: 1.13; margin: 0; color: var(--cream); }
.l-entry__tease { margin: 0; font-family: var(--font-serif); font-style: italic; font-size: 18px; line-height: 1.5; color: var(--cream-soft); }
.l-entry__body {
  margin: 0; font-family: var(--font-serif); font-size: 19px; line-height: 1.65; color: var(--cream-soft);
  max-height: 4.9em; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
}
.l-entry__more { font-family: var(--font-ui); font-size: 13px; font-weight: 500; letter-spacing: .04em; color: var(--wine-soft); }

/* --- desk form --- */
html[data-index="desk"] .l-entry {
  position: relative;
  background: rgb(33, 15, 16);
  border: 1px solid rgba(236, 231, 217, .14);
  border-radius: 14px;
  padding: 30px 36px 34px;
  box-shadow: 0 -14px 30px rgba(0, 0, 0, .45);
  display: flex; flex-direction: column; gap: 8px;
  /* own compositor layer: rotated cards painted into Chrome's scroll tiles
     rasterize through a different path and split the dark ground into two
     subtly different tones on P3 displays (boundary moved on hover) */
  will-change: transform;
}
html[data-index="desk"] .l-entry + .l-entry { margin-top: -16px; }
html[data-index="desk"] .l-entry:nth-child(odd) { transform: rotate(-.5deg); }
html[data-index="desk"] .l-entry:nth-child(even) { transform: rotate(.45deg); background: rgb(30, 13, 14); }
html[data-index="desk"] .l-entry:hover { border-color: rgba(236, 231, 217, .35); z-index: 5; }
html[data-index="desk"] .l-key {
  position: absolute; top: 30px; right: 32px;
  width: 44px; height: 14px; background-size: 100% 100%; opacity: .8;
}
html[data-index="desk"] .l-entry h2 { padding-right: 60px; }
html[data-index="desk"] .l-entry__body,
html[data-index="desk"] .l-entry__more { display: none; }

/* --- first-lines form (default) --- */
html[data-index="lines"] .l-entry { display: flex; flex-direction: column; gap: 12px; }
html[data-index="lines"] .l-entry + .l-entry { margin-top: 60px; }
html[data-index="lines"] .l-key,
html[data-index="lines"] .l-entry__tease { display: none; }
html[data-index="lines"] .l-entry:hover .l-entry__more { text-decoration: underline; text-underline-offset: 3px; }

/* ============================================================
   B · THE SINGLE LETTER — the 11pm reading experience
   ============================================================ */
.lt-main { padding: calc(var(--header-h) + 72px) 24px 140px; }
.lt-wrap { max-width: 68ch; margin: 0 auto; }

.lt-topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 44px; }
.lt-back { font-family: var(--font-ui); font-size: 14px; font-weight: 500; }

/* reader type-size control — A / A / A (production, not a preview tweak) */
.lt-tools { display: flex; gap: 8px; }
.lt-size-btn {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: none; cursor: pointer;
  border: 1px solid rgba(236, 231, 217, .25); border-radius: 8px;
  color: var(--cream); font-family: var(--font-serif);
  transition: background .2s ease, border-color .2s ease;
}
.lt-size-btn:hover { border-color: rgba(236, 231, 217, .5); }
.lt-size-btn[aria-pressed="true"] { background: rgba(236, 231, 217, .14); border-color: rgba(236, 231, 217, .65); }
.lt-size-btn--s { font-size: 14px; }
.lt-size-btn--m { font-size: 18px; }
.lt-size-btn--l { font-size: 22px; }

.lt-head { display: flex; flex-direction: column; gap: 16px; margin-bottom: 44px; }
.lt-head h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.2vw, 52px);
  font-weight: 400; letter-spacing: -0.03em; line-height: 1.08;
  margin: 0; color: var(--cream);
}
.lt-dateline { font-family: var(--font-serif); font-style: italic; font-size: 18px; color: var(--cream-soft); margin: 0; }

.lt-body { font-size: 20px; line-height: 1.7; letter-spacing: -0.01em; color: var(--cream); }
html[data-size="s"] .lt-body { font-size: 18px; }
html[data-size="l"] .lt-body { font-size: 22px; }
.lt-body p { margin: 0 0 1.35em; }
.lt-body h2 {
  font-family: var(--font-display);
  font-size: 1.45em; font-weight: 400; letter-spacing: -0.03em; line-height: 1.2;
  margin: 1.8em 0 .7em; color: var(--cream);
}
.lt-body em { font-style: italic; }

/* the one textural image (optional — letters can run text-only) */
.lt-image {
  margin: 2.2em 0;
  height: 320px;
  border-radius: 44px;
  background: var(--paper-deep);
  box-shadow: inset 0 0 0 1px rgba(133, 66, 72, .45);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; padding: 32px; text-align: center; color: var(--cream-soft);
}
.lt-image .ui-label { letter-spacing: .14em; text-transform: uppercase; color: var(--wine-soft); }
.lt-image__spec { font-family: var(--font-serif); font-style: italic; font-size: 17px; line-height: 1.5; max-width: 34ch; margin: 0; }

/* sign-off — the brand italic doing the handwriting's job */
.lt-signoff { margin-top: 56px; display: flex; flex-direction: column; gap: 14px; }
.lt-signoff__name {
  font-family: "TT Ramillas Trl Variable Italic Variable Regular",
               "TT Ramillas Trl Variable Italic Variable Regular Placeholder", serif;
  font-size: 34px; letter-spacing: -0.02em; color: var(--cream); margin: 0;
}
.lt-author { font-family: var(--font-ui); font-size: 14px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--wine-soft); margin: 0; }

/* end-of-letter pointer — ONE calm pointer, never a related-posts wall */
.lt-pointer { margin-top: 72px; padding-top: 44px; border-top: 1px solid rgba(236, 231, 217, .13); display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.lt-pointer p { margin: 0; }
.lt-pointer__lead { font-family: var(--font-serif); font-style: italic; font-size: 21px; color: var(--cream); }
.lt-pointer__micro { font-family: var(--font-serif-2); font-size: 17px; color: var(--cream-soft); }
.lt-pointer--news, .lt-pointer--coh { display: none; }
html[data-pointer="newsletter"] .lt-pointer--news { display: flex; }
html[data-pointer="coherence"] .lt-pointer--coh { display: flex; }

/* ---------- responsive ---------- */
@media (max-width: 809.98px) {
  .l-head { padding: calc(var(--header-h) + 56px) 24px 40px; }
  .l-index { padding-bottom: 64px; }
  .l-sub { padding-bottom: 100px; }
  .l-entry h2 { font-size: 25px; }
  .l-entry__body { font-size: 18px; }
  html[data-index="desk"] .l-entry { padding: 24px 24px 28px; }
  html[data-index="desk"] .l-entry h2 { padding-right: 48px; }
  html[data-index="desk"] .l-key { top: 24px; right: 24px; }
  html[data-index="lines"] .l-entry + .l-entry { margin-top: 48px; }
  .l-viewtoggle { top: calc(var(--header-h) + 6px); right: 14px; }
  .lt-main { padding-top: calc(var(--header-h) + 48px); padding-bottom: 100px; }
  .lt-body { font-size: 18px; }
  html[data-size="s"] .lt-body { font-size: 17px; }
  html[data-size="l"] .lt-body { font-size: 20px; }
  .lt-image { height: 260px; border-radius: 32px; }
}

/* ---------- coming soon (launch filler, 2026-08-20) ---------- */
.l-soon {
  min-height: calc(72vh / var(--page-zoom));
  padding: calc(var(--header-h) + 96px) 24px 140px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; text-align: center;
}
.l-soon .l-key { width: 56px; height: 17px; background-size: 100% 100%; margin-bottom: 10px; }
.l-soon h1 { color: var(--cream); }
.l-soon__line { font-size: 20px; color: var(--cream-soft); }
.l-soon .l-capture { margin-top: 22px; }
