/* ================================================================
   Yossi Eliaz — "a living preprint", v2
   Paper-and-ink editorial system: Fraunces / Spectral / IBM Plex Mono
   ================================================================ */

:root {
  --paper:      #f6f1e6;
  --paper-deep: #ece3d0;
  --ink:        #191510;
  --ink-soft:   #4a4237;
  --ink-faint:  #8d8372;
  --vermilion:  #c23a1e;
  --vermilion-deep: #97290f;
  --gold:       #b8892c;
  --rule:       #d9cdb5;
  --card:       #fffdf7;
  --shadow:     0 1px 2px rgba(35, 25, 10, .08), 0 14px 36px -14px rgba(35, 25, 10, .25);
  --serif:  "Spectral", Georgia, serif;
  --display:"Fraunces", "Spectral", serif;
  --mono:   "IBM Plex Mono", ui-monospace, monospace;
  --col: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  background-image:
    radial-gradient(1100px 520px at 88% -140px, rgba(184, 137, 44, .12), transparent 70%),
    radial-gradient(900px 620px at -12% 6%, rgba(194, 58, 30, .07), transparent 65%);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.mono { font-family: var(--mono); }
::selection { background: var(--vermilion); color: var(--paper); }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--vermilion); outline-offset: 3px; }

/* paper grain */
.grain-defs { position: absolute; }
.grain {
  position: fixed; inset: -50%;
  width: 200%; height: 200%;
  filter: url(#grain);
  opacity: .05;
  pointer-events: none;
  z-index: 2000;
}

/* ---------------- masthead ---------------- */
.masthead {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
  box-shadow: 0 -3px 0 0 var(--vermilion) inset 0 0 0 0; /* keep simple */
}
.masthead::before {
  content: ""; display: block; height: 3px;
  background: linear-gradient(90deg, var(--vermilion), var(--vermilion-deep) 55%, var(--gold));
}
.masthead-inner {
  max-width: var(--col); margin: 0 auto; padding: 13px 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.mast-id { font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); }
.mast-nav { display: flex; gap: 22px; font-size: 12px; letter-spacing: .04em; }
.mast-nav a { text-decoration: none; color: var(--ink-soft); transition: color .2s; }
.mast-nav a:hover { color: var(--vermilion); }
.mast-gh { color: var(--vermilion); font-weight: 500; }

/* ---------------- hero ---------------- */
.hero { max-width: var(--col); margin: 0 auto; padding: 64px 32px 24px; }

.hero-rule {
  display: flex; align-items: center; gap: 18px;
  font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--vermilion);
}
.hero-rule-line { flex: 1; height: 5px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }

.hero-title {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 540;
  font-size: clamp(70px, 13.8vw, 178px);
  line-height: .9;
  letter-spacing: -.025em;
  margin: 36px 0 6px;
}
.ht-line { display: block; }
.hero-title > .hero-title-row { display: flex; align-items: center; gap: .16em; }
.hero-title-row em { font-style: italic; font-weight: 480; color: var(--vermilion-deep); }

.hero-portrait {
  flex: none;
  width: .58em; height: .58em;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--ink);
  box-shadow: 7px 7px 0 var(--gold);
  transform: rotate(-3deg);
  transition: transform .5s cubic-bezier(.2, .9, .25, 1.3), box-shadow .5s;
}
.hero-portrait:hover { transform: rotate(4deg) scale(1.07); box-shadow: -7px 7px 0 var(--vermilion); }
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; display: block; }

.hero-meta {
  display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
  gap: 56px; margin-top: 46px; padding-top: 30px;
  border-top: 1px solid var(--rule);
}
.hero-abstract { font-size: 20px; line-height: 1.65; max-width: 58ch; }
.hero-abstract::first-letter {
  font-family: var(--display);
  font-size: 3.1em; font-weight: 600;
  float: left; line-height: .78;
  padding: .07em .12em 0 0;
  color: var(--vermilion-deep);
}
.hero-abstract .thin { color: var(--ink-soft); font-weight: 300; }
.abstract-label {
  display: block;
  font-size: 11px; color: var(--vermilion); letter-spacing: .24em; text-transform: uppercase;
  margin-bottom: 14px;
}

.hero-affil { font-size: 13px; line-height: 2.3; color: var(--ink-soft); margin-top: 26px; }
.affil-label { display: block; font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px; }
.hero-affil a {
  text-decoration: none; margin-right: 14px;
  border-bottom: 1px solid var(--rule);
  transition: color .2s, border-color .2s;
}
.hero-affil a:hover { color: var(--vermilion); border-color: var(--vermilion); }
.hero-affil sup { color: var(--vermilion); font-size: 9px; margin-left: 1px; }

/* contents box */
.toc {
  border: 1.5px solid var(--ink);
  background: var(--card);
  box-shadow: 10px 10px 0 var(--paper-deep);
  padding: 24px 26px 20px;
  align-self: start;
  position: relative;
}
.toc::after {
  content: "✂"; position: absolute; top: -11px; right: 18px;
  background: var(--card); padding: 0 8px;
  color: var(--vermilion); font-size: 14px; transform: rotate(90deg);
}
.toc-head { display: block; font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--vermilion); margin-bottom: 14px; }
.toc ol { list-style: none; }
.toc li + li { margin-top: 3px; }
.toc a {
  display: flex; align-items: baseline; gap: 10px;
  font-size: 12.5px; text-decoration: none; color: var(--ink-soft);
  padding: 4px 0;
  transition: color .15s;
}
.toc a:hover { color: var(--vermilion-deep); }
.toc-no { color: var(--vermilion); min-width: 30px; }
.toc-t { white-space: nowrap; }
.toc-dots { flex: 1; border-bottom: 1.5px dotted var(--ink-faint); transform: translateY(-3px); min-width: 20px; }
.toc-n { color: var(--ink-faint); }
.toc a:hover .toc-n { color: var(--vermilion); }

/* stats band */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin-top: 52px; border: 1.5px solid var(--ink);
  background: var(--card); box-shadow: 10px 10px 0 var(--paper-deep);
}
.stat { padding: 22px 26px; border-right: 1px solid var(--rule); }
.stat:last-child { border-right: none; }
.stat-n { font-family: var(--display); font-size: 46px; font-weight: 520; line-height: 1; display: block; color: var(--vermilion-deep); }
.stat-l { display: block; margin-top: 8px; font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------------- latest : full-bleed ink band ---------------- */
.latest {
  width: 100vw; margin: 84px 0 0 calc(50% - 50vw);
  background: var(--ink);
  background-image: radial-gradient(900px 400px at 80% 120%, rgba(184, 137, 44, .16), transparent 70%);
  border-top: 3px solid var(--vermilion);
  border-bottom: 3px solid var(--vermilion);
}
.latest-inner {
  max-width: var(--col); margin: 0 auto; padding: 72px 32px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 64px; align-items: center;
}
.latest-body { color: var(--paper); display: flex; flex-direction: column; gap: 16px; }
.kicker { font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--gold); }
.latest-body h2 {
  font-family: var(--display); font-weight: 520;
  font-size: clamp(36px, 4.6vw, 62px); line-height: 1.0; letter-spacing: -.02em;
}
.latest-body h2 em { font-style: italic; color: #e8b75a; }
.latest-body p { color: #cfc7b6; font-size: 17.5px; max-width: 44ch; }
.read-cta {
  display: inline-block; margin-top: 10px; width: fit-content;
  font-size: 13px; letter-spacing: .08em; text-decoration: none;
  color: var(--paper); background: var(--vermilion);
  padding: 12px 22px;
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: 5px 5px 0 rgba(0,0,0,.45);
}
.read-cta:hover { background: var(--vermilion-deep); transform: translate(-2px, -2px); box-shadow: 8px 8px 0 rgba(0,0,0,.5); }

.latest-plate {
  display: block; position: relative;
  background: var(--card); padding: 12px 12px 38px;
  transform: rotate(1.6deg);
  box-shadow: 0 24px 50px -18px rgba(0, 0, 0, .65);
  transition: transform .45s cubic-bezier(.2, .8, .25, 1.2);
}
.latest-plate:hover { transform: rotate(0deg) scale(1.015); }
.latest-plate img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; }
.plate-caption {
  position: absolute; bottom: 11px; left: 14px;
  font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint);
}

/* ---------------- sections ---------------- */
.section { max-width: var(--col); margin: 0 auto; padding: 84px 32px 8px; }
.asterism { text-align: center; color: var(--vermilion); font-size: 13px; letter-spacing: .4em; margin-bottom: 42px; }
.colophon .asterism { margin-bottom: 34px; }

.section-head { margin-bottom: 38px; }
.section-no { font-size: 12px; letter-spacing: .3em; color: var(--vermilion); display: inline-block; margin-bottom: 10px; }
.section-head h2 {
  font-family: var(--display); font-weight: 540;
  font-size: clamp(34px, 5vw, 58px); line-height: 1; letter-spacing: -.02em;
}
.section-head h2 em { font-style: italic; color: var(--vermilion-deep); font-weight: 440; }
.section-sub { margin-top: 12px; color: var(--ink-soft); max-width: 64ch; font-size: 16px; }

/* ---------------- figure grid ---------------- */
.figure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.figure-grid-2 { grid-template-columns: repeat(2, 1fr); }

.figure-card {
  display: flex; flex-direction: column;
  background: var(--card);
  border: 1px solid var(--rule);
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(35, 25, 10, .06);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.figure-card:hover {
  transform: translateY(-5px);
  border-color: var(--ink);
  box-shadow: var(--shadow);
}

.figure-thumb {
  position: relative; display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: repeating-linear-gradient(-45deg, var(--paper-deep) 0 10px, var(--card) 10px 20px);
}
.figure-thumb img {
  width: 100%; height: 100%; object-fit: cover; object-position: top;
  display: block;
  transition: transform .55s ease;
}
.figure-card:hover .figure-thumb img { transform: scale(1.05); }
.figure-thumb.thumb-missing img { display: none; }

.fig-caption {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--card) 60%, var(--paper));
  padding: 7px 14px;
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-faint);
}
.fig-caption .fc-no { color: var(--vermilion); }
.figure-card:hover .fig-caption .fc-live { color: var(--gold); }

.figure-body { display: flex; flex-direction: column; gap: 8px; padding: 16px 18px 18px; flex: 1; }
.figure-title {
  font-family: var(--display); font-weight: 560;
  font-size: 21px; line-height: 1.12; letter-spacing: -.01em;
  color: var(--ink);
}
.figure-card:hover .figure-title { color: var(--vermilion-deep); }
.figure-tldr { font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); }
.figure-link {
  margin-top: auto; padding-top: 12px;
  font-size: 11.5px; letter-spacing: .1em; color: var(--ink-faint);
  transition: color .2s, letter-spacing .25s;
}
.figure-card:hover .figure-link { color: var(--vermilion); letter-spacing: .16em; }

/* wide plate card : leads each section */
.figure-card.plate { grid-column: 1 / -1; flex-direction: row; }
.figure-card.plate .figure-thumb { width: 58%; aspect-ratio: auto; min-height: 340px; }
.figure-card.plate .fig-side { display: flex; flex-direction: column; width: 42%; border-left: 1px solid var(--rule); }
.figure-card.plate .fig-caption { border-top: none; }
.figure-card.plate .figure-body { padding: 28px 30px 26px; }
.figure-card.plate .figure-title { font-size: clamp(26px, 2.6vw, 36px); }
.figure-card.plate .figure-tldr { font-size: 16.5px; }

.figure-card.plate.plate-flip { flex-direction: row-reverse; }
.figure-card.plate.plate-flip .fig-side { border-left: none; border-right: 1px solid var(--rule); }

/* ---------------- stats embeds ---------------- */
.stats-cards { display: flex; flex-wrap: wrap; gap: 26px; }
.stat-embed {
  display: flex; flex-direction: column; gap: 10px;
  background: var(--card); border: 1px solid var(--rule);
  padding: 20px; text-decoration: none;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
}
.stat-embed:hover { transform: translateY(-4px); border-color: var(--ink); box-shadow: var(--shadow); }
.stat-embed img { display: block; max-width: 100%; }
.stat-embed span { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------------- planners ---------------- */
.planner-list { list-style: none; border-top: 1.5px solid var(--ink); }
.planner-list li { border-bottom: 1px solid var(--rule); }
.planner-list a {
  display: grid;
  grid-template-columns: 48px 290px 1fr 32px;
  align-items: center; gap: 20px;
  padding: 22px 8px;
  text-decoration: none;
  transition: background .25s, padding-left .25s;
}
.planner-list a:hover { background: var(--card); padding-left: 18px; }
.planner-emoji { font-size: 24px; }
.planner-name { font-family: var(--display); font-weight: 560; font-size: 21px; letter-spacing: -.01em; }
.planner-list a:hover .planner-name { color: var(--vermilion-deep); }
.planner-for { color: var(--ink-soft); font-size: 15px; }
.planner-arrow { color: var(--ink-faint); font-size: 15px; transition: color .2s, transform .25s; }
.planner-list a:hover .planner-arrow { color: var(--vermilion); transform: translate(3px, -3px); }

/* ---------------- colophon ---------------- */
.colophon { max-width: var(--col); margin: 96px auto 0; padding: 0 32px 72px; text-align: center; }
.colophon-sign {
  font-family: var(--display); font-weight: 480;
  font-size: clamp(26px, 4vw, 42px); letter-spacing: -.015em;
}
.colophon-sign em { color: var(--vermilion-deep); }
.colophon-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 28px; margin: 28px 0 36px; font-size: 13px; }
.colophon-links a { text-decoration: none; color: var(--ink-soft); border-bottom: 1px solid var(--rule); transition: color .2s, border-color .2s; }
.colophon-links a:hover { color: var(--vermilion); border-color: var(--vermilion); }
.colophon-note { font-size: 11px; letter-spacing: .08em; color: var(--ink-faint); }

/* ---------------- reveal ---------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .25, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .06s; }
.reveal.d2 { transition-delay: .15s; }
.reveal.d3 { transition-delay: .28s; }
.reveal.d4 { transition-delay: .4s; }
.reveal.d5 { transition-delay: .52s; }
.figure-grid .figure-card:nth-child(3n+2) { transition-delay: .08s; }
.figure-grid .figure-card:nth-child(3n+3) { transition-delay: .16s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------------- responsive ---------------- */
@media (max-width: 1000px) {
  .figure-grid { grid-template-columns: repeat(2, 1fr); }
  .figure-card.plate { flex-direction: column; }
  .figure-card.plate .figure-thumb { width: 100%; aspect-ratio: 16 / 10; min-height: 0; }
  .figure-card.plate .fig-side { width: 100%; border-left: none; }
  .figure-card.plate .fig-caption { border-top: 1px solid var(--rule); }
}
@media (max-width: 900px) {
  .hero-meta { grid-template-columns: 1fr; gap: 36px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .latest-inner { grid-template-columns: 1fr; gap: 44px; }
  .latest-plate { transform: rotate(0); }
}
@media (max-width: 640px) {
  .masthead-inner { padding: 11px 18px; }
  .mast-nav { gap: 12px; font-size: 10.5px; }
  .mast-nav a:not(.mast-gh) { display: none; }
  .mast-id { letter-spacing: .1em; }
  .hero, .section, .colophon { padding-left: 18px; padding-right: 18px; }
  .latest-inner { padding: 52px 18px; }
  .figure-grid, .figure-grid-2 { grid-template-columns: 1fr; }
  .planner-list a { grid-template-columns: 40px 1fr 32px; }
  .planner-for { display: none; }
}