/* ==========================================================
   Carrying Home: a Do Ho Suh microsite (initial build)
   Mobile-first. Breakpoints: 640px (tablet), 1024px (desktop)
   ========================================================== */

/* ---------- 1. Variables ----------
   Lydia's palettes, lightened after the mockup review
   ("make colors lighter", "colors look muddy"). */
:root {
  --brown: #5A322A;        /* text + headings */
  --clay: #A9665A;         /* links on hover, numbers */
  --page: #FBF5F3;         /* lighter than #F5E9E7 */
  --blush: #F6E6E3;        /* section color: "Every door..." */
  --sky: #E9EEF2;          /* section color: the cities */
  --stone: #EDEBE6;        /* image placeholders */
  --line: rgba(90, 50, 42, 0.25);
  --muted: #7A5A52;

  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Work Sans", "Helvetica Neue", Arial, sans-serif;
  --korean: "Noto Serif KR", serif;

  --max: 72rem;
}

/* ---------- 2. Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--brown);
  /* very soft gradient, barely visible, like light through fabric */
  background: var(--page);
}

img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }

/* One rule for every heading: serif, regular weight, never bold or italic.
   Italic is saved for artwork titles only (.work-title). */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-style: normal;
  line-height: 1.15;
  margin: 0 0 1rem;
}
h1 { font-size: clamp(2.75rem, 8vw, 5.5rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h3 { font-size: 1.5rem; }

p { margin: 0 0 1.1rem; max-width: 38rem; }

a { color: var(--brown); text-underline-offset: 0.25em; }
a:hover { color: var(--clay); }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; }

.work-title { font-family: var(--serif); }
.korean { font-family: var(--korean); }

/* Small, spaced-out uppercase labels (year, materials, dates) */
.label {
  font-family: var(--sans);
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Text link with an arrow: "See all works →" */
.arrow-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}
.arrow-link::after {
  content: " \2192";
  display: inline-block;
  transition: transform 0.2s;
}
.arrow-link:hover::after { transform: translateX(4px); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--brown);
  color: var(--page);
  z-index: 100;
}
.skip-link:focus { left: 0.5rem; }

/* The same side margins for text AND images, so everything lines up */
.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

section { padding-block: 3.5rem; }

/* Sections that get their own background color */
.band { padding-block: 4rem; }
.band--blush { background: var(--blush); }
.band--sky { background: var(--sky); }

/* ---------- 3. Header + navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 245, 243, 0.95);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
}
.site-title {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 500;
  text-decoration: none;
}
.nav-toggle {
  font: inherit;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brown);
  background: none;
  border: 1px solid var(--line);
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}
.site-nav { display: none; flex-basis: 100%; }
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 0.75rem 0 0.25rem; }
.site-nav a {
  display: block;
  padding: 0.5rem 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.site-nav a[aria-current="page"] { color: var(--clay); }

/* ---------- 4. Hero (shorter than the mockup) ---------- */
.hero { padding-top: 1.5rem; padding-bottom: 0; }
.hero-image {
  position: relative;
}
.hero-image img {
  width: 100%;
  height: clamp(16rem, 52vh, 34rem);
  object-fit: cover;
}
.kr-vertical {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  writing-mode: vertical-rl;
  letter-spacing: 0.3em;
  font-size: 1.1rem;
  color: var(--page);
}
.hero-text { padding-top: 2rem; }
.hero-text h1 { margin-bottom: 0.75rem; }
.hero-text p { font-size: 1.15rem; }

/* ---------- 5. Images + captions underneath ---------- */
.photo img,
.placeholder {
  width: 100%;
  /* about 1.5 photos per screen */
  height: clamp(14rem, 62vh, 40rem);
  object-fit: cover;
}
.placeholder {
  display: grid;
  place-items: center;
  padding: 1.5rem;
  text-align: center;
  background: var(--stone);
  border: 1px solid var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.placeholder--portrait { height: auto; aspect-ratio: 4 / 5; max-width: 26rem; }

/* Caption sits under the photo, left edge lined up with the photo */
.photo figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1rem;
  padding-top: 1rem;
}
.photo .num {
  font-family: var(--serif);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--clay);
}
.photo .work-title { font-size: 1.5rem; line-height: 1.2; display: block; }
.photo figcaption p { grid-column: 2; margin: 0.5rem 0 0; font-size: 0.98rem; }

/* Space between photos */
.photo img.fit-contain { object-fit: contain; background: var(--stone); }
.photo img.fit-low { object-position: center 75%; }

.photo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4.5rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  margin-bottom: 2rem;
}
.section-head h2 { margin: 0; }

/* ---------- 6. "Every door..." intro section ---------- */
.statement {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3.6vw, 2.6rem);
  line-height: 1.25;
  max-width: 34rem;
}
.intro-cols { display: grid; gap: 2rem; align-items: start; }
.floor-plan { width: 100%; max-width: 16rem; height: auto; color: var(--brown); }

/* ---------- 7. The cities (timeline line) ---------- */
.city-line {
  list-style: none;
  margin: 2rem 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 1rem;
}
.city-line li {
  border-top: 1px solid var(--brown);
  padding-top: 0.75rem;
  font-family: var(--serif);
  font-size: 1.35rem;
}

/* ---------- 8. About the artist ---------- */
.artist { display: grid; gap: 2rem; align-items: center; }
.portrait { width: 100%; max-width: 26rem; aspect-ratio: 4 / 5; object-fit: cover; }
strong, b { font-weight: 500; }

/* ---------- 9. Interior pages ---------- */
.two-col { display: grid; gap: 2rem; align-items: start; }

.timeline { list-style: none; margin: 2rem 0 0; padding: 0; }
.timeline li {
  display: grid;
  gap: 0.25rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.timeline h3 { margin: 0; }
.timeline .city { color: var(--muted); }
.timeline p { margin: 0.25rem 0 0; }

.theme-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 2rem;
}
.theme-list li { border-top: 1px solid var(--brown); padding-top: 1rem; }
.theme-list h3 { margin-bottom: 0.5rem; }

.plain-list { list-style: none; margin: 1rem 0 0; padding: 0; }
.plain-list li {
  display: grid;
  gap: 0.1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}
.plain-list li:first-child { border-top: 1px solid var(--line); }

.works-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  font-size: 0.9rem;
}

/* Contact form */
.form { display: grid; gap: 1.25rem; max-width: 34rem; }
.form label { margin-bottom: 0.35rem; }
.form input,
.form textarea {
  width: 100%;
  font: inherit;
  color: var(--brown);
  background: #fff;
  border: 1px solid var(--line);
  padding: 0.75rem;
}
.form button {
  justify-self: start;
  font: inherit;
  font-weight: 500;
  color: var(--page);
  background: var(--brown);
  border: 0;
  padding: 0.8rem 1.6rem;
  cursor: pointer;
}
.form button:hover { background: var(--clay); }
.form-status { min-height: 1.5rem; }

/* ---------- 10. Page-to-page link + footer ---------- */
.next-page {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  margin-top: 3rem;
}
.next-page a { text-decoration: none; }
.next-page strong { font-family: var(--serif); font-size: 1.4rem; font-weight: 500; }
.next-page .next { margin-left: auto; text-align: right; }

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}
.footer-inner { display: grid; gap: 1rem; }
.footer-inner p { margin: 0; }

/* ==========================================================
   Tablet: 640px and up
   ========================================================== */
@media (min-width: 640px) {
  .city-line { grid-template-columns: repeat(5, 1fr); }
  .theme-list { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
  .footer-inner { grid-template-columns: 1fr auto; align-items: end; }
  .timeline li { grid-template-columns: 9rem 1fr; column-gap: 2rem; }
  .timeline li > .label { padding-top: 0.45rem; }
}

/* ==========================================================
   Desktop: 1024px and up
   ========================================================== */
@media (min-width: 1024px) {
  section { padding-block: 5rem; }
  .band { padding-block: 5.5rem; }
  .hero { padding-top: 2rem; padding-bottom: 0; }

  .nav-toggle { display: none; }
  .header-inner { flex-wrap: nowrap; }
  .site-nav { display: block; flex-basis: auto; }
  .site-nav ul { display: flex; gap: 1.4rem; padding: 0; }
  .site-nav a { padding: 0.2rem 0; font-size: 0.7rem; }
  .site-nav a:hover,
  .site-nav a[aria-current="page"] { border-bottom-color: currentColor; }

  .intro-cols { grid-template-columns: 1fr 1.4fr; gap: 4rem; margin-top: 2.5rem; }
  .two-col { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .artist { grid-template-columns: 1fr 1.2fr; gap: 4rem; }
  .photo-list { gap: 6rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}