/* ===========================================================================
   LuCo Works — shared site styles
   used by: / (home) and /<category>/ index pages (ads · apps · web · data)
   (the ddp-seoul detail page keeps its own self-contained 수묵 theme)
   =========================================================================== */
:root {
  --bg: #0d0d0c;
  --bg-soft: #15151399;
  --ink: #f4f1ea;
  --ink-soft: #c9c4b8;
  --ink-muted: #807a6d;
  --line: #2a2824;
  --accent: #d4ff3a;
}

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

body {
  font-family:
    "Inter",
    -apple-system,
    sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}
body::after {
  content: "";
  position: fixed;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(
    circle,
    rgba(212, 255, 58, 0.06),
    transparent 60%
  );
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

/* ─── Navigation ─── */
nav {
  padding: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.logo {
  font-family: "Fraunces", serif;
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}
.logo-mark {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 0.5rem;
  transform: translateY(-3px);
}
.logo-sub {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--ink-muted);
  letter-spacing: 0.1em;
  font-weight: 400;
  text-transform: uppercase;
}
.nav-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}
.nav-meta span {
  color: var(--ink-soft);
}
.nav-back {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
  text-decoration: none;
}
.nav-back:hover {
  color: var(--accent);
}

/* ─── Hero / page head ─── */
.hero {
  padding: 7rem 0 5rem;
}
.page-head {
  padding: 4.5rem 0 3rem;
}

.hero-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero-label::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

h1 {
  font-family: "Fraunces", serif;
  font-size: clamp(2.6rem, 6.5vw, 4.8rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 2rem;
  max-width: 20ch;
}
h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.page-head h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 1.4rem;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 50ch;
  line-height: 1.75;
}

/* ─── Section ─── */
.section {
  padding: 5rem 0;
  border-top: 1px solid var(--line);
}
.section-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--ink-muted);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}
.section-title {
  font-family: "Fraunces", serif;
  font-size: clamp(1.7rem, 2.8vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-intro {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: rgba(237, 230, 214, 0.55);
  margin: 0.4rem 0 2.4rem;
}

/* ─── Category cards (home → /<category>/) ─── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.2rem;
}
.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.9rem 1.6rem 1.7rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  transition:
    transform 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}
a.cat-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}
.cat-card .k {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.cat-card h3 {
  font-family: "Fraunces", serif;
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.cat-card p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.cat-card .go {
  margin-top: 0.6rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.cat-card .count {
  position: absolute;
  top: 1.6rem;
  right: 1.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--ink-muted);
}

/* ─── Product card (operated products, e.g. RankBoard) ─── */
.product-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 2.5rem;
  align-items: start;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.product-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.product-info h3 {
  font-family: "Fraunces", serif;
  font-size: 1.6rem;
  font-weight: 400;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}
.product-info p {
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 0.6rem;
}
.product-info p:last-child {
  margin-bottom: 0;
}
.product-link {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}
.product-link:hover {
  text-decoration: underline;
}
.product-status {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}
.product-status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}

/* ─── Work cards (project grid inside a category) ─── */
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
}
.work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(237, 230, 214, 0.06);
  background: #1c1c19;
  box-shadow:
    0 1px 0 rgba(237, 230, 214, 0.05) inset,
    0 10px 30px rgba(0, 0, 0, 0.5);
  text-decoration: none;
  color: inherit;
  transition:
    transform 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}
a.work-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
}
.work-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  background:
    radial-gradient(
      120% 90% at 50% 18%,
      #2e6fb0 0%,
      #1b3a6b 32%,
      #1b1f28 64%,
      #0b0e14 100%
    ),
    #000000;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.work-badge {
  position: absolute;
  margin: 12px;
  padding: 0.28rem 0.6rem;
  z-index: 2;
  align-self: flex-start;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0d0d0c;
  background: var(--accent);
  border-radius: 999px;
}
.work-body {
  padding: 1.1rem 1.2rem 1.3rem;
}
.work-title {
  font-family: "Fraunces", serif;
  font-size: 1.35rem;
  line-height: 1.15;
  margin: 0 0 0.5rem;
  color: #ede6d6;
}
.work-desc {
  font-size: 0.9rem;
  line-height: 1.45;
  color: rgba(237, 230, 214, 0.7);
  margin: 0 0 0.9rem;
}
.work-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(237, 230, 214, 0.45);
  margin: 0;
}
/* empty / coming-soon slot */
.work-card--empty {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(237, 230, 214, 0.18);
  background: transparent;
  border-radius: 14px;
}
.work-empty-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.5;
  text-align: center;
}
.work-empty-plus {
  font-family: "Fraunces", serif;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--accent);
}
.work-empty-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(237, 230, 214, 0.55);
}

/* ─── Contact ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.contact-block {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.contact-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}
.contact-value {
  font-family: "Fraunces", serif;
  font-size: 1.3rem;
  color: var(--ink);
  font-weight: 400;
  text-decoration: none;
  word-break: break-all;
}
a.contact-value:hover {
  color: var(--accent);
}

/* ─── Footer ─── */
footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-meta {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--ink-muted);
  letter-spacing: 0.03em;
}
.footer-meta a {
  color: var(--ink-soft);
  text-decoration: none;
}
.footer-meta a:hover {
  color: var(--accent);
}
.footer-text {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: #5a554c;
  letter-spacing: 0.05em;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }
  nav {
    padding: 1.5rem 0;
  }
  .nav-meta {
    display: none;
  }
  .hero {
    padding: 4rem 0 3rem;
  }
  .page-head {
    padding: 3rem 0 2rem;
  }
  .product-card {
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
  }
  .product-status {
    grid-column: 1 / -1;
    justify-self: start;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ─── Entrance animation ─── */
.fade-up {
  animation: fadeUp 1s ease forwards;
  opacity: 0;
}
.delay-1 {
  animation-delay: 0.1s;
}
.delay-2 {
  animation-delay: 0.25s;
}
.delay-3 {
  animation-delay: 0.4s;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .fade-up {
    animation: none;
    opacity: 1;
  }
}