/* ═══════════════════════════════════════
   Suhyeok Han — Global Stylesheet
   Style ref: Ann Demeulemeester
   ═══════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #ffffff;
  --fg:       #0a0a0a;
  --muted:    #888884;
  --accent:   #ff6000;
  --border:   #e0e0dd;
  --nav-h:    56px;
  --font:     Helvetica Neue, Helvetica, Arial, sans-serif;
  --max-w:    1320px;
}

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

a { color: inherit; text-decoration: none; }

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

/* ── HEADER ── */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 200;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
}

#site-header h1 {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg);
  white-space: nowrap;
}

/* no accent color on title */

nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

nav a {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s;
}

nav a:hover       { color: var(--fg); }
nav a:hover::after { transform: scaleX(1); }
nav a.active      { color: var(--fg); }
nav a.active::after { transform: scaleX(1); }

/* ── PAGE WRAPPER ── */
#page {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 120px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
  animation: fadeIn 0.5s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── PAGE HEADING ── */
.page-eyebrow {
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.page-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 72px;
  line-height: 1.1;
}

/* ── SECTION LABEL ── */
.section-label {
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ── CARD GRID ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.card {
  background: var(--bg);
  text-decoration: none;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  padding: 36px 28px 28px;
  position: relative;
  transition: background 0.2s;
}

.card:hover { background: #f9f9f7; }

.card-icon {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.card-icon svg {
  width: 20px; height: 20px;
  stroke: var(--fg);
  fill: none;
  stroke-width: 1;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-tag {
  font-size: 0.5rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.card-title {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: var(--fg);
}

.card-desc {
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--muted);
  line-height: 1.75;
  flex: 1;
}

.card-arrow {
  margin-top: 24px;
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}
.card:hover .card-arrow { color: var(--fg); }
.card-arrow svg {
  width: 12px; height: 12px;
  stroke: currentColor; fill: none;
  stroke-width: 1.5;
  transition: transform 0.2s;
}
.card:hover .card-arrow svg { transform: translateX(4px); }

.work-section { margin-bottom: 64px; }

/* ── BREADCRUMB ── */
.breadcrumb {
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.breadcrumb a:hover { color: var(--fg); }
.breadcrumb .sep { opacity: 0.4; font-size: 0.6rem; }
.breadcrumb .current { color: var(--fg); }

/* ── BOTTOM PAGE NAV (work pages) ── */
.page-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 52px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  z-index: 100;
}

.page-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 20px;
  border-right: 1px solid var(--border);
  text-decoration: none;
  color: var(--muted);
  font-size: 0.46rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: color 0.2s, background 0.2s;
}
.page-nav-item:first-child { border-left: 1px solid var(--border); }

.page-nav-item svg {
  width: 14px; height: 14px;
  stroke: currentColor; fill: none;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-nav-item:hover { color: var(--fg); background: #f5f5f3; }
.page-nav-item.current { color: var(--fg); }
.page-nav-item.current::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
}
.page-nav-item { position: relative; }

.nav-divider {
  width: 1px; height: 100%;
  background: var(--border);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  #site-header { padding: 0 20px; }
  #page { padding-left: 20px; padding-right: 20px; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  nav { gap: 20px; }
}
@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  nav { gap: 14px; }
}

#site-header h1 a {
  color: inherit;
  text-decoration: none;
}
#site-header h1 a:hover {
  opacity: 0.6;
  transition: opacity 0.2s;
}