:root {
  --bg: #f7f4ee;
  --bg-alt: #efeae0;
  --fg: #111013;
  --fg-muted: #5a5653;
  --rule: #d8d1c2;
  --accent: #6b4f2a;
  --font-serif: 'Cormorant Garamond', 'Noto Serif KR', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Noto Sans KR', sans-serif;
  --max: 1120px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
  --space-7: 9rem;
}

[data-theme='dark'] {
  --bg: #111013;
  --bg-alt: #17161a;
  --fg: #eae6dd;
  --fg-muted: #8a857d;
  --rule: #2a282e;
  --accent: #c9a876;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #111013;
    --bg-alt: #17161a;
    --fg: #eae6dd;
    --fg-muted: #8a857d;
    --rule: #2a282e;
    --accent: #c9a876;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { overflow-x: hidden; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--fg); color: var(--bg); padding: 0.5rem 1rem;
}
.skip-link:focus { left: 1rem; top: 1rem; z-index: 100; }

/* ---------------- Header ---------------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.header--scrolled { border-bottom-color: var(--rule); }
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem;
}
.brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav { display: flex; gap: 2rem; }
.nav-link {
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  color: var(--fg-muted);
  position: relative;
  padding-bottom: 0.25rem;
}
.nav-link--active { color: var(--fg); }
.nav-link--active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--accent);
}
.header-end { display: flex; align-items: center; gap: 0.75rem; }
.btn-lang {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  border: 1px solid var(--rule);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  transition: all 0.15s ease;
}
.btn-lang:hover { color: var(--fg); border-color: var(--fg-muted); }

/* ---------------- Layout ---------------- */
.container { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--space-6) 0; }
.section--hero { padding: var(--space-7) 0 var(--space-6); }
.section--alt { background: var(--bg-alt); }

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 1.5rem;
}

h1, h2, h3 { font-family: var(--font-serif); font-weight: 500; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.75rem, 6vw, 4.5rem); line-height: 1.05; margin: 0 0 1.5rem; }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); line-height: 1.15; margin: 0 0 1.25rem; }
h3 { font-size: 1.5rem; line-height: 1.3; margin: 0 0 0.75rem; }
p { margin: 0 0 1.25rem; max-width: 60ch; }
.lead { font-size: 1.25rem; color: var(--fg-muted); line-height: 1.55; max-width: 52ch; }

hr.rule { border: none; border-top: 1px solid var(--rule); margin: var(--space-5) 0; }

/* ---------------- Hero ---------------- */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.hero-heading {
  font-size: clamp(2.25rem, 8.5vw, 6rem);
  line-height: 1.05;
  font-weight: 400;
  margin: 0;
  overflow-wrap: break-word;
  word-break: keep-all;
}
.hero-heading em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 40ch;
  margin-top: 2rem;
}
.hero-meta {
  display: flex; gap: 2.5rem; flex-wrap: wrap;
  margin-top: var(--space-4);
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  font-size: 0.85rem;
  color: var(--fg-muted);
}
.hero-meta-item { display: flex; flex-direction: column; gap: 0.25rem; }
.hero-meta-label { letter-spacing: 0.15em; text-transform: uppercase; font-size: 0.7rem; }
.hero-meta-value { color: var(--fg); font-family: var(--font-serif); font-size: 1.15rem; }

/* ---------------- Prose blocks ---------------- */
.prose-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-4);
  align-items: start;
}
.prose-grid .eyebrow { margin: 0; padding-top: 0.4rem; }
.prose-grid p:last-child { margin-bottom: 0; }
@media (max-width: 720px) {
  .prose-grid { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* ---------------- Projects pager (carousel) ---------------- */
.section--projects { padding: var(--space-2) 0; }
.pager {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.pager-arrow {
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--fg-muted);
  padding: 0.25rem 0.75rem;
  transition: color 0.15s ease;
}
.pager-arrow:hover { color: var(--fg); }
.pager-stage {
  flex: 1;
  min-width: 0;
  text-align: center;
}
.pager-index {
  position: relative;
  height: 3.4rem;
  margin: 0 0 var(--space-4);
  perspective: 1000px;
  transform-style: preserve-3d;
  overflow: hidden;
}
.pager-idx {
  position: absolute;
  top: 50%;
  left: 50%;
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.1;
  white-space: nowrap;
  backface-visibility: hidden;
  transition: transform 0.5s ease, opacity 0.5s ease, color 0.5s ease, font-size 0.5s ease;
}
/* Slots on the turntable. */
.pager-idx--c {
  transform: translate(-50%, -50%) translateZ(60px);
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  color: var(--fg);
  opacity: 1;
  z-index: 3;
}
.pager-idx--r {
  transform: translate(-50%, -50%) translateX(150px) rotateY(-58deg);
  font-size: 1.15rem;
  color: var(--fg-muted);
  opacity: 0.5;
  z-index: 2;
}
.pager-idx--l {
  transform: translate(-50%, -50%) translateX(-150px) rotateY(58deg);
  font-size: 1.15rem;
  color: var(--fg-muted);
  opacity: 0.5;
  z-index: 2;
}
.pager-idx--far {
  transform: translate(-50%, -50%) translateZ(-130px);
  opacity: 0;
  z-index: 1;
}
.pager-projects {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 1.5rem 2.5rem;
}
.pager-proj { display: flex; flex-direction: column; align-items: center; gap: 0.2rem; }
.pager-proj:hover .pager-proj-name { color: var(--accent); }
.pager-proj--sel .pager-proj-name { color: var(--accent); }
.pager-proj-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 1.2;
  color: var(--fg);
  transition: color 0.15s ease;
}
.pager-proj-role {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* The title turntable spins via .pager-idx transitions (above). The project
   list gets a light directional fade to match. */
@keyframes pagerFadeR { from { opacity: 0; transform: translateX(14px); } to { opacity: 1; transform: none; } }
@keyframes pagerFadeL { from { opacity: 0; transform: translateX(-14px); } to { opacity: 1; transform: none; } }
.pager-anim--right { animation: pagerFadeR 0.35s ease both; }
.pager-anim--left  { animation: pagerFadeL 0.35s ease both; }
@media (prefers-reduced-motion: reduce) {
  .pager-idx { transition: none; }
  .pager-anim--right, .pager-anim--left { animation: none; }
}

/* ---------------- Project detail ---------------- */
.proj-detail {
  max-width: 62ch;
  margin: var(--space-5) auto 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--rule);
  text-align: left;
  animation: pagerFadeR 0.3s ease both;
}
.proj-detail-back {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
}
.proj-detail-back:hover { color: var(--fg); }
.proj-detail-role {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}
.proj-detail-name {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
  margin: 0.5rem 0 1rem;
}
.proj-detail-desc {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0;
}
.proj-legal { margin-top: var(--space-4); border-top: 1px solid var(--rule); }
.proj-legal details {
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0;
}
.proj-legal summary {
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--fg);
}
.proj-legal p {
  margin: 0.85rem 0 0;
  color: var(--fg-muted);
  line-height: 1.65;
}
.proj-legal-links { margin-top: var(--space-4); }
.proj-legal-links h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}
.proj-legal-links ul { list-style: none; margin: 0; padding: 0; }
.proj-legal-links li { margin: 0.4rem 0; }
.proj-legal-links a {
  color: var(--fg-muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.proj-legal-links a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------------- FootHeart legal pages ---------------- */
.section--legal { padding: var(--space-4) 0 var(--space-6); }
.legal-doc { max-width: 64ch; text-align: left; }
.legal-back {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  margin-bottom: 1.25rem;
}
.legal-back:hover { color: var(--fg); }
.legal-doc h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 0 0 1rem; }
.legal-meta {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.legal-intro { color: var(--fg); line-height: 1.7; }
.legal-sec { margin-top: var(--space-4); }
.legal-sec h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin: 0 0 0.6rem;
}
.legal-sec p, .legal-sec li { color: var(--fg-muted); line-height: 1.7; }
.legal-sec ul { padding-left: 1.2rem; margin: 0.5rem 0; }
.legal-sec li { margin: 0.3rem 0; }
.legal-sec strong { color: var(--fg); font-weight: 500; }
.legal-note { font-size: 0.9rem; }
.legal-list { list-style: none; margin: var(--space-3) 0; padding: 0; }
.legal-list li { border-top: 1px solid var(--rule); }
.legal-list li:last-child { border-bottom: 1px solid var(--rule); }
.legal-link {
  display: block;
  padding: 1rem 0.25rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--fg);
  transition: color 0.15s ease;
}
.legal-link:hover { color: var(--accent); }
.legal-foot {
  margin-top: var(--space-5);
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

@media (max-width: 640px) {
  .pager { gap: 0.25rem; }
  .pager-arrow { font-size: 2.25rem; padding: 0.5rem; }
  /* On small screens: keep projects horizontal but left-aligned (not centered),
     drop the sub-title role, and shrink the titles so they fit. */
  .pager-projects {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.1rem;
  }
  .pager-proj-name { font-size: 1.05rem; }
  .pager-proj-role { display: none; }
  /* Pull the side titles closer so the turntable fits a narrow screen. */
  .pager-idx--r { transform: translate(-50%, -50%) translateX(95px) rotateY(-58deg); }
  .pager-idx--l { transform: translate(-50%, -50%) translateX(-95px) rotateY(58deg); }
}

/* ---------------- Contact ---------------- */
.contact-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-4);
  align-items: start;
}
.contact-link {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  display: inline-block;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.25rem;
  transition: border-color 0.2s ease;
}
.contact-link:hover { border-color: var(--accent); }
.contact-text {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0;
  color: var(--fg);
}
@media (max-width: 720px) {
  .contact-block { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* ---------------- Footer ---------------- */
.footer {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0;
  margin-top: var(--space-6);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--fg-muted);
}
.footer-mark {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--fg);
}
.footer-legal {
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}
.footer-legal:hover { color: var(--accent); }
.footer-copy { margin-left: auto; }

/* ---------------- Route transitions ---------------- */
@keyframes routeEnter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.route-enter { animation: routeEnter 0.32s ease-out both; }
@media (prefers-reduced-motion: reduce) {
  .route-enter { animation: none; }
}

@media (max-width: 720px) {
  .footer-copy { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
  .nav { gap: 1.25rem; font-size: 0.8rem; }
  .header-inner { padding: 1rem; gap: 1rem; }
  .section { padding: var(--space-5) 0; }
  .section--hero { padding: var(--space-5) 0 var(--space-4); }
  h1 { font-size: clamp(2.1rem, 9vw, 3rem); }
  .hero-heading { font-size: clamp(2.1rem, 9vw, 3.25rem); }
  .lead { font-size: 1.1rem; }
}

@media (max-width: 480px) {
  /* Only three short nav items, so keep them visible (no hamburger) and
     just tighten spacing so brand + nav + language toggle all fit. */
  .header-inner { padding: 0.875rem 1rem; gap: 0.5rem; }
  .brand { font-size: 1.25rem; }
  .nav { gap: 0.9rem; font-size: 0.78rem; }
  .btn-lang { padding: 0.3rem 0.6rem; font-size: 0.72rem; }
}