/* Zivive — hoja de especímenes / grafito y rosa */

:root {
  --bg: #191919;
  --bg-sheet: #212121;
  --bg-contrast: #f0eeec;
  --ink: #e8e6e4;
  --ink-soft: #918e8c;
  --ink-dark: #191919;
  --accent: #c96f76;
  --accent-2: #8ca0a8;
  --line: rgba(232, 230, 228, 0.16);
  --line-frame: rgba(201, 111, 118, 0.42);
  --line-dark: rgba(25, 25, 25, 0.22);
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --gap: 28px;
  --rhythm: 88px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  overflow-x: hidden;
}

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

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

a:hover { color: var(--accent); }

a:focus-visible,
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- estructura ---------- */

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 40px 0;
}

.sheet {
  background: var(--bg-sheet);
  border: 1px solid var(--line-frame);
  padding: 56px 56px 64px;
  overflow: hidden;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
  row-gap: 32px;
  align-items: start;
}

/* ---------- cabecera ---------- */

.topbar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 40px 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px 28px;
}

.brand {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.02em;
  border-bottom: none;
}

.brand:hover { color: var(--accent); }

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  font-size: 15px;
}

.nav-list a { border-bottom-color: rgba(201, 111, 118, 0.5); }

.nav-list a[aria-current="page"] { color: var(--accent); }

/* ---------- tipografía ---------- */

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  text-transform: none;
  margin: 0;
}

h1 {
  font-size: clamp(32px, 4.3vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.005em;
}

h2 {
  font-size: clamp(24px, 2.5vw, 31px);
  line-height: 1.24;
  margin-bottom: 18px;
}

h3 {
  font-style: italic;
  font-size: 21px;
  line-height: 1.34;
  margin: 30px 0 10px;
}

p { margin: 0 0 20px; max-width: 72ch; }

p:last-child { margin-bottom: 0; }

.label {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-2);
  margin: 0 0 14px;
}

.num {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-2);
  display: block;
  margin-bottom: 10px;
}

.lead { font-size: 19px; line-height: 1.66; }

.cap {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- portada ---------- */

.hero { padding-bottom: 8px; }

.hero-title { grid-column: 1 / 9; }

.hero-title p {
  margin-top: 26px;
  color: var(--ink-soft);
  max-width: 54ch;
}

.hero-meta { grid-column: 9 / 13; }

.spec {
  border: 1px solid var(--line);
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
}

.spec div {
  display: flex;
  gap: 14px;
  justify-content: space-between;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
}

.spec div:last-child { border-bottom: none; }

.spec dt { color: var(--accent-2); white-space: nowrap; }

.spec dd { margin: 0; text-align: right; color: var(--ink); }

.spec a { font-size: 13px; }

/* ---------- imagen principal ---------- */

.figure-main { grid-column: 1 / 6; margin: 0; }

.figure-main img { border: 1px solid var(--line); width: 100%; }

.figure-side { grid-column: 7 / 12; align-self: end; }

/* ---------- separadores ---------- */

.rule {
  position: relative;
  height: 1px;
  background: var(--line);
  border: 0;
  margin: var(--rhythm) 0;
}

.rule::before,
.rule::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: var(--accent-2);
}

.rule::before { left: 0; }
.rule::after { right: 0; }

.rule-dark { background: var(--line-dark); }
.rule-dark::before,
.rule-dark::after { background: #7d8e95; }

/* ---------- secciones de texto ---------- */

.block { margin: var(--rhythm) 0 0; }

.block:first-of-type { margin-top: 0; }

.col-main { grid-column: 1 / 8; }

.col-side { grid-column: 9 / 13; }

.col-wide { grid-column: 1 / 11; }

.col-full { grid-column: 1 / 13; }

ul, ol { margin: 0 0 20px; padding: 0 0 0 20px; max-width: 70ch; }

li { margin-bottom: 9px; }

ul { list-style: none; padding-left: 22px; }

ul li { position: relative; }

ul li::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--accent);
}

ol { list-style: decimal; }

ol li::marker { color: var(--accent-2); }

.note {
  border-left: 1px solid var(--accent);
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 16px;
  margin: 26px 0 0;
}

/* ---------- sección contrastada ---------- */

.contrast {
  background: var(--bg-contrast);
  color: var(--ink-dark);
  margin: var(--rhythm) -56px 0;
  padding: 72px 56px;
}

.contrast h2, .contrast h3, .contrast p, .contrast li { color: var(--ink-dark); }

.contrast .num, .contrast .label { color: #5d6f76; }

.contrast .cap { color: #5f5c5a; }

.contrast a { color: var(--ink-dark); border-bottom-color: var(--accent); }

.contrast a:hover { color: #a2545b; }

.contrast ul li::before { background: #a2545b; }

.contrast .spec { border-color: var(--line-dark); }

.contrast .spec div { border-bottom-color: var(--line-dark); }

.contrast .spec dt { color: #5d6f76; }

.contrast .spec dd { color: var(--ink-dark); }

.contrast-text { grid-column: 1 / 7; }

.contrast-figure { grid-column: 8 / 13; margin: 0; }

.contrast-figure img { border: 1px solid rgba(25, 25, 25, 0.3); width: 100%; }

.contrast-figure .cap { margin-top: 12px; }

/* ---------- about ---------- */

.stack-side { display: grid; row-gap: 20px; }

/* ---------- pie ---------- */

.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 40px 48px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px 24px;
}

.footer-name { font-family: var(--serif); font-size: 20px; }

.footer-line {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 22px 0;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 32px;
  align-items: flex-start;
}

.footer-bottom .nav-list { font-size: 14px; }

.footer-note {
  font-size: 13px;
  color: var(--ink-soft);
  max-width: 44ch;
  margin: 0;
}

/* ---------- adaptación ---------- */

@media (max-width: 1000px) {
  .col-main { grid-column: 1 / 9; }
  .col-side { grid-column: 9 / 13; }
  .figure-main { grid-column: 1 / 7; }
  .figure-side { grid-column: 8 / 13; }
  .contrast-text { grid-column: 1 / 8; }
  .contrast-figure { grid-column: 8 / 13; }
}

@media (max-width: 820px) {
  :root { --rhythm: 52px; --gap: 18px; }

  .wrap { padding: 18px 16px 0; }
  .topbar { padding: 20px 16px 20px; }
  .sheet { padding: 28px 20px 34px; }
  .site-footer { padding: 36px 16px 40px; }

  body { font-size: 16px; }

  .grid { grid-template-columns: 1fr; row-gap: 24px; }

  .hero-title,
  .hero-meta,
  .figure-main,
  .figure-side,
  .col-main,
  .col-side,
  .col-wide,
  .col-full,
  .contrast-text,
  .contrast-figure { grid-column: 1 / -1; }

  .figure-side { align-self: start; }

  .contrast { margin-left: -20px; margin-right: -20px; padding: 40px 20px; }

  h3 { font-size: 19px; }

  .lead { font-size: 17px; }

  .spec { font-size: 12.5px; }

  .spec div { padding: 9px 12px; }
}

@media (max-width: 420px) {
  .spec div { flex-direction: column; gap: 2px; }
  .spec dd { text-align: left; }
}

.cap-note { margin-top: 14px; }