/* ============================================================
   [Nombre del artista] — escultura, Bogotá
   Composición: libro abierto, crema desgastada + óxido + azul
   ============================================================ */

:root {
  --bg: #f4ecdc;
  --bg-2: #ece1cb;
  --paper: #faf4e7;
  --ink: #1a1b2e;
  --ink-soft: #4a4a5c;
  --accent: #6b1f1a;
  --secondary: #1e2a4a;
  --rule: rgba(26, 27, 46, 0.16);
  --rule-soft: rgba(26, 27, 46, 0.09);
  --glow-a: rgba(107, 31, 26, 0.10);
  --glow-b: rgba(30, 42, 74, 0.12);
  --shadow: 0 1px 0 rgba(26, 27, 46, 0.05), 0 18px 40px -28px rgba(26, 27, 46, 0.45);
  --sans: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --measure: 34rem;
}

html[data-theme="dark"] {
  --bg: #14151f;
  --bg-2: #1b1c28;
  --paper: #1c1d2a;
  --ink: #f0e8d8;
  --ink-soft: #b9b3a6;
  --accent: #d98b7e;
  --secondary: #9fb0d8;
  --rule: rgba(240, 232, 216, 0.20);
  --rule-soft: rgba(240, 232, 216, 0.10);
  --glow-a: rgba(217, 139, 126, 0.10);
  --glow-b: rgba(159, 176, 216, 0.10);
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.4), 0 18px 40px -28px rgba(0, 0, 0, 0.9);
}

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

body {
  min-height: 100vh;
  font-family: var(--sans);
  font-weight: 700;                 /* deliberately wrong weight: heavy body */
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  line-height: 1.62;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 8% -6%, var(--glow-a) 0, transparent 58%),
    radial-gradient(ellipse at 96% 104%, var(--glow-b) 0, transparent 55%),
    radial-gradient(ellipse at 50% 45%, rgba(255, 255, 255, 0.35) 0, transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}

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

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--secondary); }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--paper);
  color: var(--ink);
  padding: 0.6rem 1rem;
  z-index: 99;
}
.skip:focus { left: 0.75rem; top: 0.75rem; }

/* ---------------- top bar ---------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}

.mark { display: flex; flex-direction: column; text-decoration: none; color: var(--ink); line-height: 1.15; }
.mark__name { font-family: var(--serif); font-weight: 300; font-size: 1.05rem; letter-spacing: 0.01em; }
.mark__sub { font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); font-weight: 600; }

.nav { display: flex; flex-wrap: wrap; gap: 0.15rem 1.1rem; margin-left: auto; }
.nav a {
  position: relative;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.55rem 0.1rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.35rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--accent); }
.nav a:hover::after, .nav a[aria-current="true"]::after { transform: scaleX(1); }

.theme {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.theme:hover { border-color: var(--accent); color: var(--accent); }
.theme__dot {
  width: 0.7rem; height: 0.7rem; border-radius: 50%;
  background: var(--accent);
  box-shadow: inset -3px -2px 0 0 var(--bg);
}

/* ---------------- book spread ---------------- */

.book {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3.5rem) clamp(1rem, 4vw, 2.5rem) 4rem;
}

.spread {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.25rem;
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.1rem, 3vw, 2.25rem);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  box-shadow: var(--shadow);
  scroll-margin-top: 5.5rem;
}

.page { min-width: 0; }
.gutter { display: none; }

.folio {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
  margin: 0 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule-soft);
}

.eyebrow {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 0.9rem;
}

/* deliberately wrong weight: extra-thin display, heavy body */
h1 {
  font-family: var(--serif);
  font-weight: 200;
  font-size: clamp(2.4rem, 1.4rem + 5.2vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 1.4rem;
  color: var(--ink);
}
h1 em { font-style: italic; font-weight: 300; color: var(--accent); }

h2 {
  font-family: var(--serif);
  font-weight: 200;
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.7rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 1.1rem;
  color: var(--ink);
}

h3 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
  color: var(--secondary);
}

p { margin: 0 0 1rem; max-width: var(--measure); }
.lede { font-size: 1.02em; color: var(--ink); }
.body { color: var(--ink-soft); }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--accent);
  border-radius: 2px;
  background: var(--accent);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.btn:hover { background: var(--secondary); border-color: var(--secondary); color: var(--paper); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--accent); }
.btn--ghost:hover { background: transparent; color: var(--secondary); border-color: var(--secondary); }

/* ---------------- plates ---------------- */

.plate { margin: 0 0 1.5rem; }
.plate img {
  width: 100%;
  border: 1px solid var(--rule-soft);
  filter: saturate(0.82) contrast(1.02);
}
.plate figcaption {
  margin-top: 0.6rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  line-height: 1.5;
}
.plate__num {
  display: inline-block;
  margin-right: 0.5rem;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.66rem;
}

.plates { display: grid; gap: 1.25rem; margin-bottom: 1.5rem; }

/* ---------------- dictated quote (signature) ---------------- */

.dictated {
  margin: 0 0 0.5rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--rule);
}
.dictated p {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.15rem, 1rem + 1vw, 1.5rem);
  line-height: 1.42;
  color: var(--ink);
  max-width: 30rem;
}
.dictated .w {
  display: inline-block;
  opacity: 0;
  animation: word-in 0.42s ease forwards;
}
.dictated .caret {
  display: inline-block;
  width: 0.5ch;
  height: 1em;
  margin-left: 0.12em;
  vertical-align: -0.12em;
  background: var(--accent);
  animation: caret-blink 1s steps(2, start) infinite;
}
.dictated.is-done .caret { display: none; }

@keyframes word-in {
  from { opacity: 0; transform: translateY(0.18em); }
  to   { opacity: 1; transform: none; }
}
@keyframes caret-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.sign {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0;
}

/* ---------------- entries / notes ---------------- */

.entry { padding: 1.25rem 0; border-top: 1px solid var(--rule-soft); }
.entry:first-of-type { border-top: 1px solid var(--rule); }
.entry__meta {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 0.8rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  margin-left: 0.4rem;
}
.entry__spec {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 0;
}

.note {
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
  border-left: 2px solid var(--secondary);
  background: color-mix(in srgb, var(--bg-2) 55%, transparent);
}
.note__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.15rem;
  letter-spacing: 0;
  color: var(--ink);
  margin-bottom: 0.6rem;
}
.note p:last-child { margin-bottom: 0; }

.steps { list-style: none; margin: 1.5rem 0 0; padding: 0; counter-reset: step; }
.steps li { padding: 1.1rem 0; border-top: 1px solid var(--rule-soft); }
.steps h3 { color: var(--accent); letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.78rem; }
.steps p { margin-bottom: 0; }

.facts { margin: 1.5rem 0; padding: 0; }
.facts > div {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--rule-soft);
}
.facts dt {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 700;
  padding-top: 0.15rem;
}
.facts dd { margin: 0; color: var(--ink); }

.colophon {
  font-size: 0.74rem;
  color: var(--ink-soft);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
}

/* ---------------- form ---------------- */

.form { margin-top: 1.5rem; max-width: 30rem; }
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.field input, .field textarea {
  width: 100%;
  min-height: 46px;
  padding: 0.7rem 0.85rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  background: color-mix(in srgb, var(--paper) 70%, var(--bg));
  border: 1px solid var(--rule);
  border-radius: 2px;
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  border-color: var(--accent);
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 1px;
}
.form-status {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--secondary);
  font-weight: 700;
}

/* ---------------- footer ---------------- */

.foot {
  max-width: 1240px;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2.5rem) 4.5rem;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
}
.foot__line {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0;
}
.muted.attribution {
  position: static;
  margin: 0;
  font-size: 0.72rem;
  opacity: 1;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-weight: 600;
}
.muted.attribution a { color: var(--ink-soft); }
.muted.attribution a:hover { color: var(--accent); }

/* ============================================================
   Wide screens: the open book
   ============================================================ */

@media (min-width: 900px) {
  .spread {
    grid-template-columns: minmax(0, 1fr) 4px minmax(0, 1fr);
    gap: 0;
    padding: 0;
    align-items: stretch;
  }
  .page--left {
    grid-column: 1;
    grid-row: 1;
    padding: clamp(2rem, 3.2vw, 3.25rem) clamp(1.75rem, 3vw, 3rem);
  }
  .gutter {
    grid-column: 2;
    grid-row: 1;
    display: block;
    position: relative;
    background: linear-gradient(90deg,
      var(--rule-soft) 0%,
      color-mix(in srgb, var(--ink) 22%, transparent) 50%,
      var(--rule-soft) 100%);
  }
  .gutter__rule {
    position: absolute;
    inset: 0;
    box-shadow: 0 0 18px 2px color-mix(in srgb, var(--ink) 12%, transparent);
  }
  .page--right {
    grid-column: 3;
    grid-row: 1;
    padding: clamp(2rem, 3.2vw, 3.25rem) clamp(1.75rem, 3vw, 3rem);
  }
  .plates { grid-template-columns: 1fr 1fr; }

  /* anchor-positioned scroll labels */
  @supports (anchor-name: --x) {
    .page--left h2 { anchor-name: --heading; }
    .page--left h2::after {
      content: "§";
      position-anchor: --heading;
      position-area: right span-block;
      position-try-fallbacks: flip-inline;
      margin-left: 0.6rem;
      font-family: var(--serif);
      font-weight: 300;
      font-size: 0.7rem;
      color: var(--accent);
      opacity: 0.75;
      animation: label-drift linear both;
      animation-timeline: view();
      animation-range: entry 10% exit 70%;
    }
  }
}

@keyframes label-drift {
  from { transform: translateY(0.6rem); opacity: 0; }
  30%  { opacity: 0.75; }
  to   { transform: translateY(-0.6rem); opacity: 0.35; }
}

/* scroll-driven reveal for spreads, where supported */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .spread {
      animation: spread-in linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 55%;
    }
  }
}
@keyframes spread-in {
  from { opacity: 0.4; transform: translateY(1.5rem); }
  to   { opacity: 1; transform: none; }
}

/* ---------------- reduced motion ---------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .dictated .w { opacity: 1 !important; transform: none !important; }
  .dictated .caret { display: none; }
  .spread { opacity: 1 !important; transform: none !important; }
}