/* ===========================================================
   The Language of War / Język wojny — static site styles
   Palette derived from the official book cover:
   ivory / cream, deep teal, gold-amber, sage green.
   =========================================================== */

:root {
  --bg:        #f4efe3;   /* warm ivory page background */
  --bg-alt:    #ece5d4;   /* slightly deeper band background */
  --card:      #faf6ec;   /* card surface */
  --ink:       #1c2a2a;   /* near-black charcoal-teal for big headings */
  --teal:      #1f4e54;   /* primary teal */
  --teal-deep: #163a3f;   /* darker teal (buttons/hover) */
  --gold:      #bf9134;   /* amber-gold accent */
  --sage:      #7c8a6f;   /* misty sage green */
  --text:      #3a403d;   /* body text */
  --muted:     #6c726e;   /* muted/secondary text */
  --line:      #d9d0bd;   /* hairline borders */
  --maxw:      1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .serif {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal-deep); }

img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
  margin: 0 0 18px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn-primary { background: var(--teal-deep); color: #f6f1e6; }
.btn-primary:hover { background: var(--ink); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,239,227,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-family: "Playfair Display", serif; font-weight: 700;
  font-size: 19px; color: var(--ink);
}
.brand svg { width: 20px; height: 20px; color: var(--teal); }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--ink); font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--teal); }
.header-right { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 4px;
  background: transparent; color: var(--ink);
  padding: 7px 11px; font-size: 13px; font-weight: 600; cursor: pointer;
}
.lang-toggle:hover { border-color: var(--teal); color: var(--teal); }

/* ---------- sections ---------- */
section { padding: 86px 0; }
.section-alt { background: var(--bg-alt); }
.section-head h2 { font-size: clamp(30px, 4vw, 46px); margin: 0 0 18px; max-width: 18ch; }
.lead { font-size: 19px; color: var(--muted); max-width: 60ch; margin: 0; }

/* ---------- hero ---------- */
.hero { padding: 70px 0 72px; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 56px; align-items: center;
}
.hero h1 { font-size: clamp(44px, 6.4vw, 86px); margin: 0 0 14px; }
.hero h1 .gold { color: var(--gold); font-style: italic; }
.hero .subtitle {
  font-family: "Playfair Display", serif; font-style: italic;
  color: var(--teal); font-size: clamp(20px, 2.4vw, 28px);
  margin: 0 0 26px;
}
.hero .hero-lead { font-size: 18px; color: var(--text); max-width: 52ch; margin: 0 0 28px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.cover-frame {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 26px 60px -28px rgba(22,42,42,0.5);
}
.cover-frame img { border-radius: 4px; }

/* ---------- word ladder ---------- */
.ladder {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 26px 28px; margin: 6px 0 4px;
}
.ladder .eyebrow { margin-bottom: 18px; }
.ladder ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.ladder li { display: flex; align-items: baseline; gap: 14px; }
.ladder .word {
  font-family: "Playfair Display", serif; font-size: 26px; font-weight: 700;
  color: var(--gold);
}
.ladder .word.ar { font-family: "Inter", sans-serif; }
.ladder .tag {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stat {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 30px 28px;
}
.stat .label { text-transform: uppercase; letter-spacing: 0.18em; font-size: 11px; color: var(--teal); font-weight: 600; }
.stat .num { font-family: "Playfair Display", serif; font-size: 52px; color: var(--ink); line-height: 1; margin: 12px 0 10px; }
.stat .desc { color: var(--muted); font-size: 15px; }

/* ---------- pull quote ---------- */
.pullquote {
  border-left: 3px solid var(--gold);
  padding: 6px 0 6px 30px;
  font-family: "Playfair Display", serif; font-style: italic;
  font-size: clamp(22px, 2.8vw, 30px); color: var(--ink); line-height: 1.4;
  max-width: 60ch;
}

/* ---------- two-column prose ---------- */
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.split p { margin: 0 0 18px; }

/* ---------- timeline cards ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.tcard {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 24px 22px;
}
.tcard .era { text-transform: uppercase; letter-spacing: 0.16em; font-size: 11px; color: var(--muted); font-weight: 600; }
.tcard h3 { font-size: 26px; color: var(--teal); margin: 10px 0 0; }
.tcard .rule { width: 34px; height: 2px; background: var(--gold); margin: 12px 0 14px; }
.tcard p { margin: 0; color: var(--text); font-size: 15px; }

/* ---------- author cards ---------- */
.authors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 44px; }
.acard { background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.acard .photo { aspect-ratio: 1 / 1; overflow: hidden; }
.acard .photo img { width: 100%; height: 100%; object-fit: cover; }
.acard .body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.acard .role { text-transform: uppercase; letter-spacing: 0.16em; font-size: 11px; color: var(--teal); font-weight: 600; }
.acard h3 { font-size: 26px; margin: 0; }
.acard p { margin: 0; color: var(--text); font-size: 15px; flex: 1; }
.acard .btn { margin-top: 8px; justify-content: center; }

/* ---------- visual world ---------- */
.visual { text-align: center; }
.visual .section-head { display: flex; flex-direction: column; align-items: center; }
.visual .section-head h2 { max-width: 22ch; }
.visual .caption { color: var(--muted); max-width: 60ch; margin: 0 auto 14px; }
.visual .rule { width: 60px; height: 2px; background: var(--gold); margin: 18px auto 40px; }
.visual .cover-frame { max-width: 460px; margin: 0 auto 28px; }

/* ---------- footer ---------- */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--line); padding: 40px 0; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.site-footer .brand { font-size: 17px; }
.site-footer .nav a { font-size: 14px; }

/* ---------- author profile pages ---------- */
.profile-hero { padding: 64px 0 56px; }
.profile-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.profile-hero h1 { font-size: clamp(40px, 5.5vw, 72px); margin: 0 0 16px; }
.profile-hero .tagline { font-size: 19px; color: var(--muted); max-width: 46ch; margin: 0 0 28px; }
.profile-photo { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px; box-shadow: 0 26px 60px -30px rgba(22,42,42,0.5); }
.profile-photo img { border-radius: 4px; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.facts { display: grid; gap: 14px; max-width: 60ch; }
.facts .source { text-transform: uppercase; letter-spacing: 0.16em; font-size: 11px; color: var(--muted); font-weight: 600; }
.facts li { margin: 0; }
.facts ul { margin: 6px 0 0; padding-left: 20px; display: grid; gap: 8px; }

/* ---------- helpers ---------- */
[hidden] { display: none !important; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .split, .profile-grid { grid-template-columns: 1fr; gap: 36px; }
  .stats { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .authors { grid-template-columns: 1fr; }
  .nav { display: none; }
  section { padding: 60px 0; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .wrap { padding: 0 20px; }
}


/* ===================== chapter reader ===================== */
.chapter-hero { background: var(--bg-alt); border-bottom: 1px solid var(--line); padding: 60px 0 40px; }
.chapter-hero h1 { font-size: clamp(30px, 4.4vw, 52px); margin: 6px 0 18px; max-width: 20ch; }
.chapter-hero .lead { max-width: 60ch; }
.chapter-hero .byline { font-family: "Playfair Display", serif; font-style: italic; color: var(--muted); margin: 18px 0 0; font-size: 18px; }
.chapter { padding: 46px 0 76px; }
.chapter .col { max-width: 72ch; margin: 0 auto; padding: 0 28px; }
.chapter h3 { font-size: clamp(21px, 2.6vw, 29px); margin: 46px 0 14px; }
.chapter p { font-size: 18px; line-height: 1.78; margin: 0 0 20px; color: var(--text); }
.chapter blockquote { margin: 26px 0; padding: 6px 0 6px 24px; border-left: 3px solid var(--gold);
  font-family: "Playfair Display", serif; font-style: italic; font-size: 20px; line-height: 1.6; color: var(--ink); }
.sixthreads { width: 100%; border-collapse: collapse; margin: 16px 0 10px; }
.sixthreads th, .sixthreads td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; font-size: 16px; line-height: 1.55; }
.sixthreads th { background: var(--teal); color: #f6f1e6; font-weight: 600; }
.sixthreads td:first-child { font-weight: 600; color: var(--ink); width: 36%; }
.sixthreads tr:nth-child(even) td { background: var(--card); }
.wordcloud { text-align: center; line-height: 2.1; margin: 14px 0 8px; }
.wordcloud .term { color: var(--teal); margin: 0 1px; }
.wordcloud .term.b { color: var(--gold); font-weight: 700; }
.wordcloud .sep { color: var(--muted); font-size: 13px; }
.chapter .backlinks { display: flex; gap: 12px; flex-wrap: wrap; margin: 44px 0 0; }
@media (max-width: 560px) { .chapter .col { padding: 0 20px; } .sixthreads td:first-child { width: 42%; } }


/* excerpt gate */
.excerpt-last { position: relative; }
.excerpt-gate { margin: 18px 0 8px; padding: 26px 0 6px; border-top: 1px solid var(--line); }
.excerpt-gate .gate-line { font-family: "Playfair Display", serif; font-style: italic; color: var(--muted); font-size: 19px; margin: 0 0 22px; }
.chapter .cloud-head { text-align: center; margin-top: 52px; }