/* =========================================================================
   Writing + About — page styles
   ========================================================================= */

/* ---------- generic page header (light or dark) ---------- */
.page-head { padding-top: clamp(140px, 18vh, 200px); }
.page-head .display { max-width: 18ch; }

/* =========================================================================
   WRITING
   ========================================================================= */
.authors-intro {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: clamp(28px, 4vw, 56px);
  margin-top: 36px;
  max-width: 920px;
}
.authors-intro .rule-v { background: var(--sand); }
.author-blurb { display: flex; flex-direction: column; gap: 10px; }
.author-blurb .who { display: flex; align-items: center; gap: 12px; }
.author-blurb p { margin: 0; color: var(--ink-soft); font-size: 1.02rem; line-height: 1.5; }

.avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.95rem;
  flex: 0 0 auto;
}
.avatar.strategy { background: var(--tw-accent); color: #fff; }
.avatar.building { background: var(--ink); color: var(--bone); }
.avatar.sm { width: 30px; height: 30px; font-size: 0.78rem; }
.author-name { font-weight: 500; font-size: 1.06rem; color: var(--ink); }
.author-role {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.subscribe-row { margin-top: 34px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

/* filter bar */
.letters-bar {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 20px; margin-bottom: 36px; flex-wrap: wrap;
}
.letters-filter { display: flex; gap: 8px; }
.letters-filter button {
  font-family: var(--sans); font-size: 0.9rem;
  padding: 7px 16px; border-radius: 999px;
  border: 1px solid var(--sand); background: transparent;
  color: var(--ink-soft); cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.letters-filter button .swatch { width: 9px; height: 9px; border-radius: 50%; }
.letters-filter button.strategy .swatch { background: var(--tw-accent); }
.letters-filter button.building .swatch { background: var(--ink); }
.letters-filter button.on { border-color: var(--ink); color: var(--ink); background: var(--card); }
.letters-filter button:hover { color: var(--ink); }

/* letters grid */
.letters-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.6vw, 24px);
}
.letter-card {
  background: var(--card);
  border: 1px solid var(--sand);
  border-radius: 6px;
  padding: clamp(24px, 2.4vw, 34px);
  display: flex; flex-direction: column;
  gap: 16px;
  min-height: 300px;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.letter-card:hover { background: #fff; transform: translateY(-3px); box-shadow: 0 16px 38px -22px rgba(0,0,0,0.28); border-color: color-mix(in srgb, var(--ink) 12%, var(--sand)); }
.letter-card::after {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: transparent;
  transition: background .25s ease;
}
.letter-card.strategy:hover::after { background: var(--tw-accent); }
.letter-card.building:hover::after { background: var(--ink); }

.letter-byline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.letter-byline .who { display: flex; align-items: center; gap: 10px; }
.letter-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.letter-tag.strategy { color: var(--tw-accent-ink); background: var(--seedling-tint); }
.letter-tag.building { color: var(--ink); background: rgba(14,23,20,0.07); }

.letter-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 2vw, 1.85rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
  text-wrap: balance;
}
.letter-excerpt {
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.letter-meta {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  display: flex; align-items: center; gap: 10px;
}
.letter-meta .arrow { margin-left: auto; transition: transform .2s ease; }
.letter-card:hover .letter-meta .arrow { transform: translateX(3px); }

/* inline subscribe band */
.subscribe-band { text-align: center; }
.subscribe-band .heading { margin: 0 auto; max-width: 18ch; }
.subscribe-band .lead { margin: 16px auto 30px; text-align: center; max-width: 44ch; }
.subscribe-form {
  display: flex; gap: 12px; justify-content: center; max-width: 480px; margin: 0 auto;
  flex-wrap: wrap;
}
.subscribe-input {
  flex: 1; min-width: 240px;
  padding: 15px 20px;
  border: 1.5px solid var(--sand);
  border-radius: 999px;
  background: var(--card);
  font-family: var(--sans); font-size: 1rem; color: var(--ink);
}
.subscribe-input::placeholder { color: var(--ink-faint); }
.subscribe-input:focus { outline: none; border-color: var(--tw-accent); }

.load-more { text-align: center; margin-top: 44px; }
.letters-end {
  text-align: center;
  margin: 40px 0 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
#letters-sentinel { height: 1px; }

/* =========================================================================
   STORIES — index (full-width stacked editorial rows)
   ========================================================================= */
.case-index { display: flex; flex-direction: column; margin-top: 8px; }
.case-row {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: clamp(24px, 4vw, 64px);
  padding: clamp(40px, 5vw, 72px) 0;
  border-top: 1px solid var(--sand);
  text-decoration: none;
  color: inherit;
  align-items: start;
  transition: background .2s ease;
}
.case-row:last-of-type { border-bottom: 1px solid var(--sand); }
.case-num {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.6rem, 4.4vw, 3.8rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--tw-accent-ink);
}
.case-kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 16px;
}
.case-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.9rem, 3.2vw, 2.85rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
  color: var(--ink);
  text-wrap: balance;
  transition: color .2s ease;
}
.case-row:hover .case-title { color: var(--tw-accent-ink); }
.case-standfirst {
  font-size: clamp(1.12rem, 1.5vw, 1.32rem);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 46ch;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.case-excerpt {
  margin: 0 0 24px;
  font-size: 1.04rem;
  line-height: 1.62;
  color: var(--ink-soft);
  max-width: 60ch;
}
.case-metalink {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}
.case-metalink .read {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 1rem;
  color: var(--tw-accent-ink);
  letter-spacing: 0;
  display: inline-flex; align-items: center; gap: 8px;
}
.case-metalink .read .arr { transition: transform .2s ease; }
.case-row:hover .case-metalink .read .arr { transform: translateX(4px); }

/* leaves-behind trio (reuse tenets-like but standalone) */
.leaves {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: 8px;
}
.leaves-item .num {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tw-accent-ink);
  display: block;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sand);
}
.leaves-item h4 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.2vw, 1.9rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
  color: var(--ink);
  text-wrap: balance;
}
.leaves-item p { margin: 0; font-size: 1.02rem; line-height: 1.6; color: var(--ink-soft); }

/* =========================================================================
   STORIES — case detail (editorial feature)
   ========================================================================= */
.breadcrumb {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 28px;
}
.breadcrumb:hover { color: var(--tw-accent-ink); }
.case-head-kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tw-accent-ink);
  margin: 0 0 20px;
}
.case-head-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.6rem, 5.2vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  color: var(--ink);
  max-width: 18ch;
  text-wrap: balance;
}
.case-head-standfirst {
  font-size: clamp(1.25rem, 1.9vw, 1.6rem);
  line-height: 1.4;
  color: var(--ink-soft);
  max-width: 40ch;
  margin: 0 0 26px;
  font-weight: 400;
}
.case-head-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.case-measure { max-width: 70ch; margin: 0 auto; }
.case-prose p {
  font-size: 1.18rem;
  line-height: 1.72;
  color: var(--ink-soft);
  margin: 0 0 1.5em;
}
.case-prose p.dropcap-first::first-letter,
.case-prose > p:first-of-type::first-letter {
  font-family: var(--display);
  font-weight: 500;
  font-size: 3.4em;
  line-height: 0.82;
  float: left;
  margin: 0.04em 0.12em 0 0;
  color: var(--ink);
}
.case-prose em { color: var(--ink); font-style: italic; }
.case-sub {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(1.3rem, 1.9vw, 1.6rem);
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 2.4em 0 0.9em;
  line-height: 1.2;
}

/* dark full-width pull band — biggest typographic moment */
.case-band {
  margin: clamp(56px, 7vw, 96px) 0;
  background: var(--soil);
  color: var(--bone);
  padding: clamp(64px, 9vw, 120px) var(--gutter);
  text-align: center;
}
.case-band blockquote {
  margin: 0 auto;
  max-width: 22ch;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.2rem, 4.4vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--bone);
  text-wrap: balance;
}
.case-band cite {
  display: block;
  margin-top: 28px;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--bone-soft);
}

/* inline left-border pull-quote inside prose */
.case-pull {
  border-left: 3px solid var(--tw-accent);
  padding: 6px 0 6px 26px;
  margin: 2em 0;
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 24ch;
  text-wrap: balance;
}

/* closing line — set apart, not a quote block */
.case-closeline {
  margin: clamp(48px, 6vw, 76px) auto 0;
  max-width: 70ch;
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  line-height: 1.34;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: balance;
}
.case-closeline em { color: var(--tw-accent-ink); font-style: normal; }

/* end-of-case nav */
.case-nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.case-nav a {
  font-family: var(--sans);
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 10px;
}
.case-nav a:hover { color: var(--tw-accent-ink); }

/* =========================================================================
   ABOUT
   ========================================================================= */
.bio {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}
.bio.flip { grid-template-columns: 1fr 420px; }
.bio.flip .bio-photo { order: 2; }

/* portrait placeholder with hover swap (real -> AI) */
.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  width: 100%;
  border-radius: 6px;
  overflow: hidden;
  background: var(--mist);
  cursor: pointer;
}
.portrait-layer {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  transition: opacity .5s ease;
}
.portrait-layer .ph-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
/* real (default) */
.portrait-real {
  background:
    linear-gradient(160deg, #d9e2dd 0%, #c5d2cb 100%);
  color: var(--ink-soft);
  opacity: 1;
}
.portrait-real .ph-initial {
  font-family: var(--display);
  font-size: 8rem;
  font-weight: 500;
  color: rgba(14,23,20,0.16);
  line-height: 1;
}
/* AI portrait (on hover) — duotone emerald */
.portrait-ai {
  background:
    repeating-linear-gradient(45deg, color-mix(in srgb, var(--tw-accent) 80%, #000) 0 2px, transparent 2px 5px),
    linear-gradient(160deg, var(--tw-accent) 0%, color-mix(in srgb, var(--tw-accent) 60%, #06231a) 100%);
  color: rgba(255,255,255,0.92);
  opacity: 0;
}
.portrait-ai .ph-initial {
  font-family: var(--display);
  font-size: 8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.22);
  line-height: 1;
}
.portrait:hover .portrait-ai { opacity: 1; }
/* real photo layers */
.portrait-photo { width: 100%; height: 100%; object-fit: cover; display: block; }
.portrait.has-photo .portrait-real,
.portrait.has-photo .portrait-ai { background: var(--mist); }
.portrait-tag {
  position: absolute;
  left: 14px; bottom: 14px;
  z-index: 3;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid var(--sand);
  padding: 6px 12px;
  border-radius: 999px;
  display: flex; align-items: center; gap: 7px;
  pointer-events: none;
}
.portrait-tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--tw-accent); }

.bio-role {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tw-accent-ink);
  margin: 0 0 14px;
}
.bio-name {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.6rem, 4.4vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--ink);
}
.bio-tagline {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem);
  color: var(--ink-soft);
  margin: 0 0 26px;
  font-weight: 400;
}
.bio-body { color: var(--ink-soft); max-width: 56ch; }
.bio-body p { margin: 0 0 1.1em; line-height: 1.62; }
.bio-body strong { color: var(--ink); font-weight: 500; }

.cred-pills { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0 26px; }
.cred-pill {
  font-family: var(--sans);
  font-size: 0.86rem;
  color: var(--ink);
  border: 1px solid var(--sand);
  background: var(--card);
  padding: 8px 16px;
  border-radius: 999px;
}

.bio-quote {
  border-left: 3px solid var(--tw-accent);
  padding: 4px 0 4px 24px;
  margin: 0 0 26px;
  font-size: clamp(1.2rem, 1.7vw, 1.5rem);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 30ch;
  text-wrap: balance;
}
.bio-links { display: flex; gap: 20px; }

/* The Name — Butler */
.name-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: start;
  margin-top: 8px;
}
.name-body { color: var(--bone-soft); }
.name-body p { margin: 0 0 1.3em; line-height: 1.66; font-size: 1.06rem; }
.butler-quote {
  border-left: 3px solid var(--tw-accent-bright);
  padding: 8px 0 8px 28px;
}
.butler-quote p {
  font-family: var(--display);
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--bone);
  margin: 0 0 18px;
  font-weight: 500;
}
.butler-quote cite {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--bone-faint);
}

/* =========================================================================
   Closing CTA (About) — centered, with a deliberate pause before the button
   ========================================================================= */
.cta-block { text-align: center; }
.cta-block .heading { margin: 0 auto; max-width: 24ch; }
.cta-block .cta-actions {
  margin-top: clamp(52px, 6vw, 76px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 900px) {
  .authors-intro { grid-template-columns: 1fr; }
  .authors-intro .rule-v { display: none; }
  .letters-grid { grid-template-columns: 1fr; }
  .bio, .bio.flip { grid-template-columns: 1fr; gap: 32px; }
  .bio.flip .bio-photo { order: 0; }
  .bio-photo { max-width: 360px; }
  .name-grid { grid-template-columns: 1fr; }
  .case-row { grid-template-columns: 1fr; gap: 12px; }
  .case-num { font-size: 2.2rem; }
  .leaves { grid-template-columns: 1fr; gap: 32px; }
}