/* CristobalVarela.com: site styles. Tokens live in tokens.css. */

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

a { color: inherit; }

[id] { scroll-margin-top: calc(var(--header-h) + 1rem); }

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -6rem;
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--color-accent);
  color: var(--color-dark);
  font-weight: 700;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: var(--space-3); }

/* ---------- Themes ---------- */
.theme-light, .theme-stone {
  --fg: var(--color-ink);
  --fg-muted: var(--color-muted);
  --line: rgba(34, 38, 46, 0.16);
  --accent-ink: var(--color-accent-text);
  --focus: var(--color-accent-text);
  color: var(--fg);
}
.theme-light { background: var(--color-bg); }
.theme-stone {
  --accent-ink: var(--color-accent-text-stone);
  --focus: var(--color-accent-text-stone);
  background: var(--color-surface);
}

.theme-dark {
  --fg: var(--color-white);
  --fg-muted: var(--color-on-dark-muted);
  --line: var(--color-line-dark);
  --accent-ink: var(--color-accent);
  --focus: var(--color-accent);
  background: var(--color-dark);
  color: var(--fg);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }

.section-head {
  display: grid;
  gap: var(--space-5);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.split { display: grid; gap: clamp(2rem, 5vw, 4.5rem); }
.split--center { align-items: center; }

@media (min-width: 62rem) {
  .split--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .split--4-8 { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
  .split--6-6 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

.stack { display: grid; gap: var(--space-5); align-content: start; justify-items: start; }
.stack--tight { gap: var(--space-3); }

.measure { max-width: var(--measure); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-4); }

/* ---------- Type ---------- */
h2 {
  font-size: var(--text-h2);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

h3 {
  font-size: var(--text-h3);
  line-height: var(--leading-snug);
  font-weight: 800;
  letter-spacing: -0.015em;
}

.display { font-size: var(--text-display); line-height: var(--leading-tight); }
.display--xl { font-size: clamp(2.4rem, 1.2rem + 4.6vw, 4.75rem); }
.display--lines span, .display--lines em { display: block; }

/* The one editorial flourish: a serif italic phrase inside a heading. */
h2 em, .hero__title-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-size: 1.08em;
  color: var(--accent-ink);
}

.lead {
  font-size: clamp(1.15rem, 1rem + 0.6vw, 1.35rem);
  line-height: 1.5;
  color: var(--fg);
  max-width: 40rem;
  text-wrap: pretty;
}
.theme-dark .lead { color: var(--fg-muted); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 2rem;
  height: 3px;
  background: var(--color-accent);
}
/* Long eyebrows put the rule above the words on small screens. */
@media (max-width: 39.99rem) {
  .eyebrow--stack { display: block; font-size: 0.6875rem; letter-spacing: 0.08em; }
  .eyebrow--stack::before { display: block; margin-bottom: var(--space-4); }
}

cite { font-style: italic; }

/* ---------- Buttons and links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 3.25rem;
  padding: 0.5rem 1.6rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration) var(--ease), border-color var(--duration) var(--ease), color var(--duration) var(--ease);
}
.btn--sm { min-height: 2.75rem; padding-inline: 1.15rem; font-size: var(--text-sm); }
@media (max-width: 30rem) {
  .btn { padding-inline: 1.1rem; }
}

.btn--accent { background: var(--color-accent); color: var(--color-dark); }
.btn--accent:hover { background: var(--color-accent-hover); }

.btn--dark { background: var(--color-dark); color: var(--color-white); }
.btn--dark:hover { background: var(--color-slate); }

.btn--outline { border-color: rgba(255, 255, 255, 0.55); color: var(--color-white); }
.btn--outline:hover { border-color: var(--color-white); background: rgba(255, 255, 255, 0.08); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--accent-ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
  transition: text-decoration-thickness var(--duration) var(--ease);
}
.text-link:hover { text-decoration-thickness: 4px; }
.text-link svg { color: var(--accent-ink); flex: none; }

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  white-space: nowrap;
}
.chip--accent { border-color: var(--color-accent); color: var(--color-accent); }
.chip--solid { background: var(--color-dark); border-color: var(--color-dark); color: var(--color-white); }
.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0 var(--space-5);
  min-height: var(--header-h);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-white);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  background: var(--color-accent);
}

.nav-toggle { display: none; }

/* Without JavaScript, small screens get one scrollable row of links. */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-basis: 100%;
  overflow-x: auto;
  padding-bottom: var(--space-3);
}
.site-nav__list { display: flex; gap: var(--space-5); white-space: nowrap; }
.site-nav__list a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-on-dark-muted);
  text-decoration: none;
}
.site-nav__list a:hover { color: var(--color-white); }
.site-nav__cta { flex: none; }

/* With JavaScript, small screens get a menu button and a panel. */
@media (max-width: 61.99rem) {
  .js .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 2.75rem;
    padding: 0 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-white);
    font: inherit;
    font-size: var(--text-sm);
    font-weight: 700;
    cursor: pointer;
  }
  .js .nav-toggle__icon--close,
  .js .nav-toggle[aria-expanded="true"] .nav-toggle__icon--open { display: none; }
  .js .nav-toggle[aria-expanded="true"] .nav-toggle__icon--close { display: block; }

  .js .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-h));
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    padding: var(--space-3) var(--gutter) var(--space-6);
    background: var(--color-dark);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.35);
  }
  .js .site-nav.is-open { display: block; }
  .js .site-nav__list { display: block; white-space: normal; }
  .js .site-nav__list a {
    display: flex;
    min-height: 3.25rem;
    font-size: 1.125rem;
    color: var(--color-white);
    border-bottom: 1px solid var(--line);
  }
  .js .site-nav__cta { display: flex; margin-top: var(--space-5); min-height: 3.25rem; font-size: var(--text-base); }
}

@media (min-width: 62rem) {
  .site-header__inner { flex-wrap: nowrap; }
  .site-nav { flex-basis: auto; overflow: visible; padding-bottom: 0; gap: var(--space-6); }
  .site-nav__list { gap: clamp(1rem, 2vw, 1.9rem); }
  .site-nav__list a:hover {
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 8px;
  }
}

/* ---------- 01 Hero ---------- */
.hero { padding-block: clamp(2.75rem, 7vw, 6rem) clamp(3.5rem, 8vw, 7rem); overflow: hidden; }
.hero__grid { display: grid; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.hero__copy { display: grid; gap: var(--space-5); justify-items: start; }

.hero__title {
  font-size: var(--text-hero);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.035em;
}
.hero__title span { display: block; }
.hero__title-accent { margin-top: 0.06em; }

.hero__lead {
  max-width: 35rem;
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
  line-height: 1.55;
  color: var(--fg-muted);
  text-wrap: pretty;
}

.hero__tags {
  width: 100%;
  max-width: 35rem;
  margin-top: var(--space-3);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--fg-muted);
}

.hero__portrait { position: relative; isolation: isolate; width: 100%; max-width: 26rem; }
.hero__portrait img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  object-position: 50% 0;
  border-radius: var(--radius-lg);
  background: var(--color-slate);
}
.hero__portrait::after {
  content: "";
  position: absolute;
  inset: 0.9rem -0.9rem -0.9rem 0.9rem;
  z-index: -1;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
}

@media (min-width: 40rem) {
  .hero__portrait img { aspect-ratio: 4 / 5; }
}
@media (min-width: 62rem) {
  .hero__grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); }
  .hero__portrait { max-width: none; }
}

/* ---------- 02 Proof points ---------- */
.proof { display: grid; gap: 0 var(--space-6); width: 100%; margin-top: var(--space-4); }
.proof li {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding-block: var(--space-5);
  border-top: 1px solid var(--line);
}
.proof__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--accent-ink);
}
.proof__text { font-weight: 500; line-height: 1.5; }

@media (min-width: 40rem) {
  .proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 03 Featured business ---------- */
.feature__eyebrow { margin-bottom: clamp(1.75rem, 4vw, 3rem); }
.feature__grid { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); }
.feature__aside { display: grid; gap: var(--space-6); align-content: start; }
@media (min-width: 62rem) {
  .feature__grid { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
  .feature__aside { grid-column: 1; grid-row: 1; }
  .feature__body { grid-column: 2; grid-row: 1; }
}
.feature__logo { width: min(100%, 17rem); height: auto; }

.facts { display: grid; }
.facts > div { display: grid; gap: 0.15rem; padding-block: var(--space-4); border-top: 1px solid var(--line); }
.facts > div:last-child { border-bottom: 1px solid var(--line); }
.facts dt {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.facts dd { font-weight: 700; }

/* ---------- 04 Origin ---------- */
.media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.media figcaption { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--fg-muted); }

/* ---------- 05 Ventures ---------- */
.ventures { display: grid; gap: var(--space-5); }

.venture {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-5);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--color-card-dark);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.venture > .text-link { margin-top: auto; }
.venture__top { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); width: 100%; }
.venture__name { font-size: clamp(1.35rem, 1.2rem + 0.6vw, 1.6rem); line-height: 1.2; letter-spacing: -0.02em; }
.venture--feature .venture__name { font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.6rem); line-height: 1.1; letter-spacing: -0.03em; }
.venture__summary { color: var(--fg-muted); max-width: 32rem; }

.logo-slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: 3.25rem;
  border: 1px dashed rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-md);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.steps { display: grid; width: 100%; }
.steps > div { display: grid; gap: var(--space-1); align-content: start; padding-block: var(--space-4); border-top: 1px solid var(--line); }
.steps dt {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent);
}
.steps dd { color: var(--fg-muted); }

@media (min-width: 48rem) {
  .ventures { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .venture--feature, .venture--std { grid-column: span 12; }
  .venture--compact { grid-column: span 6; }
  .venture--feature .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 var(--space-6); }
  .venture--std .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-6); }
}

/* ---------- 06 Books ---------- */
.books { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
.book {
  display: grid;
  gap: var(--space-5);
  align-content: start;
  padding-top: var(--space-6);
  border-top: 2px solid var(--color-ink);
}
.book__cover, .book__manuscript {
  width: 100%;
  max-width: 11rem;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius-sm);
}
.book__cover { object-fit: cover; box-shadow: 0 14px 30px rgba(28, 32, 38, 0.18); }
.book__manuscript {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.2;
  text-align: center;
  color: var(--color-ink);
}
.book__title { font-size: clamp(1.4rem, 1.2rem + 0.9vw, 1.85rem); line-height: 1.18; letter-spacing: -0.02em; }
.book__subtitle { font-family: var(--font-serif); font-style: italic; font-size: 1.4rem; line-height: 1.25; color: var(--color-muted); }

@media (min-width: 36rem) {
  .book { grid-template-columns: 11rem minmax(0, 1fr); gap: var(--space-6); }
}
@media (min-width: 62rem) {
  .books { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 07 Insights ---------- */
.topics { display: grid; align-content: start; }
.topics li {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: clamp(1.15rem, 1rem + 0.7vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
}
.topics li:last-child { border-bottom: 1px solid var(--line); }
.topics__n { font-family: var(--font-serif); font-style: italic; font-weight: 400; font-size: 1.25em; color: var(--accent-ink); }

/* ---------- 08 Speaking ---------- */
.tracks { display: grid; gap: var(--space-6); margin-bottom: clamp(2rem, 4vw, 3rem); }
.track {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--color-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.track__letter { font-family: var(--font-serif); font-style: italic; font-size: 3.5rem; line-height: 1; color: var(--accent-ink); }
.track ul { margin-top: var(--space-3); }
.track li { padding-block: var(--space-4); border-top: 1px solid var(--line); line-height: 1.45; }

@media (min-width: 48rem) {
  .tracks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 09 About ---------- */
.note {
  max-width: var(--measure);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: var(--text-sm);
  color: var(--fg-muted);
}

/* ---------- 10 Contact ---------- */
.ticks { display: grid; gap: var(--space-3); }
.ticks li { display: flex; align-items: baseline; gap: var(--space-3); font-size: 1.125rem; font-weight: 600; }
.ticks li::before { content: ""; flex: none; width: 0.6rem; height: 0.6rem; background: var(--color-accent); transform: translateY(-0.1em); }

.form {
  display: grid;
  gap: var(--space-5);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--color-card-dark);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.form__title { font-size: 1.5rem; }
.field { display: grid; gap: var(--space-2); }
.field label { font-size: var(--text-sm); font-weight: 700; }
.field input, .field select, .field textarea {
  width: 100%;
  min-height: 3.25rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-sm);
  background: var(--color-dark);
  color: var(--color-white);
  font: inherit;
}
.field textarea { resize: vertical; }
.field--trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { justify-self: start; }
.form__status { min-height: 1.5em; font-size: var(--text-sm); color: var(--fg-muted); }

/* ---------- Footer ---------- */
.site-footer { padding-block: clamp(3rem, 6vw, 4.5rem) var(--space-6); border-top: 1px solid var(--line); font-size: var(--text-sm); }
.site-footer__grid { display: grid; gap: var(--space-7); }
.site-footer__line { color: var(--fg-muted); }
.site-footer__title {
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--color-white);
  text-decoration: none;
}
.site-footer nav a:hover { text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.site-footer__legal { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--line); color: var(--fg-muted); }

@media (min-width: 48rem) {
  .site-footer__grid { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1.2fr); }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}