:root {
  --bg: #071225;
  --panel: rgba(8, 18, 38, 0.75);
  --panel-strong: rgba(6, 17, 38, 0.9);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f2f6ff;
  --muted: #bfd0e8;
  --accent: #7ab8ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(rgba(3, 9, 22, 0.58), rgba(3, 9, 22, 0.9)),
    url('./assets/portal-bg.webp') center / cover fixed no-repeat,
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 86% 4%, rgba(94, 159, 255, 0.15), transparent 32%),
    radial-gradient(circle at 8% 25%, rgba(255, 207, 120, 0.08), transparent 28%);
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -70px;
  z-index: 100;
  padding: 12px 16px;
  border-radius: 12px;
  background: white;
  color: #071225;
  font-weight: 800;
  text-decoration: none;
}
.skip-link:focus { top: 16px; }

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero { padding: 44px 0 22px; }
.topbar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(12px);
  color: #cfddf1;
  font-size: 13px;
  letter-spacing: .08em;
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7ab8ff, #ffe09b);
  box-shadow: 0 0 16px rgba(122,184,255,.75);
}

.hero-card,
.category-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}
.hero-card {
  margin-top: 18px;
  padding: 36px;
  border-radius: 30px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr .9fr;
  gap: 28px;
}
.eyebrow {
  margin: 0 0 10px;
  color: #a9c9ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
}
h1 {
  margin: 0;
  font-size: clamp(2.15rem, 5vw, 4.35rem);
  line-height: 1.04;
  letter-spacing: -.045em;
}
h1 span {
  display: block;
  margin-top: 10px;
  color: #d6e4f7;
  font-size: clamp(1.15rem, 2vw, 1.75rem);
  font-weight: 650;
  letter-spacing: -.02em;
}
.subtitle {
  margin: 20px 0 10px;
  color: #e5edfa;
  font-size: 1.18rem;
  font-weight: 700;
}
.description,
.category-description,
.item-card p,
.info-panel li,
.footer-card p {
  color: var(--muted);
  line-height: 1.72;
}
.description { margin: 0; max-width: 760px; }

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 25px;
}
.quick-link {
  padding: 12px 15px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  text-decoration: none;
  font-weight: 750;
  transition: transform .18s ease, background .18s ease;
}
.quick-link:hover,
.quick-link:focus-visible {
  transform: translateY(-2px);
  background: rgba(255,255,255,.12);
}

.hero-side { display: grid; gap: 14px; }
.stats-panel,
.info-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel-strong);
}
.panel-title { margin: 0 0 15px; font-size: 1rem; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-card {
  padding: 15px 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 17px;
  background: rgba(255,255,255,.045);
}
.stat-number { display: block; font-size: 1.75rem; }
.stat-label { display: block; margin-top: 4px; color: var(--muted); font-size: .9rem; }
.info-panel ul { margin: 0; padding-left: 18px; }
.info-panel li + li { margin-top: 7px; }

.main { padding: 12px 0 46px; }
.portal-grid { display: grid; gap: 20px; }
.category-card {
  scroll-margin-top: 18px;
  padding: 28px;
  border-radius: 28px;
}
.category-head {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 20px;
}
.category-icon {
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  border-radius: 24px;
  font-size: 2rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.3), 0 16px 30px rgba(0,0,0,.25);
}
.media-icon { background: linear-gradient(135deg, #3e81f6, #7ab8ff); }
.publishing-icon { background: linear-gradient(135deg, #665eef, #a78bfa); }
.research-icon { background: linear-gradient(135deg, #3171d8, #48b7ef); }
.apps-icon { background: linear-gradient(135deg, #248fdc, #5bd5ff); }
.category-head h2 { margin: 3px 0 8px; font-size: 1.8rem; }
.category-description { margin: 0; }

.items-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.items-grid.one-item { grid-template-columns: minmax(0, 1fr); }
.item-card {
  display: flex;
  flex-direction: column;
  padding: 21px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 24px;
  background: rgba(255,255,255,.055);
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.item-card:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,.075);
  border-color: rgba(143,190,255,.28);
}
.item-top { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.item-meta,
.item-domain {
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.07);
  color: #d9e7fa;
  font-size: .82rem;
}
.item-card h3 { margin: 16px 0 9px; font-size: 1.35rem; line-height: 1.4; }
.item-card p { margin: 0; flex: 1; }
.item-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.visit-link,
.copy-btn {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 14px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform .16s ease, filter .16s ease, background .16s ease;
}
.visit-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: linear-gradient(135deg, #4489f5, #75b6ff);
  color: white;
  text-decoration: none;
}
.copy-btn { background: rgba(255,255,255,.055); color: var(--text); }
.visit-link:hover,
.copy-btn:hover { transform: translateY(-1px); filter: brightness(1.06); }
.visit-link:focus-visible,
.copy-btn:focus-visible,
.quick-link:focus-visible,
.footer-card a:focus-visible {
  outline: 3px solid rgba(143,190,255,.72);
  outline-offset: 3px;
}

.footer { padding: 0 0 50px; }
.footer-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(8,18,38,.82);
  text-align: center;
}
.footer-card strong { font-size: 1.08rem; }
.footer-card p { margin: 8px auto 12px; }
.footer-card a { color: #9fc7ff; font-weight: 800; text-decoration: none; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  transform: translate(-50%, 24px);
  padding: 12px 17px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  background: rgba(4,12,27,.94);
  color: white;
  font-weight: 750;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { background-attachment: scroll; }
  .hero { padding-top: 26px; }
  .hero-card, .category-card { padding: 22px; border-radius: 24px; }
  .category-head { grid-template-columns: 62px 1fr; gap: 14px; }
  .category-icon { width: 62px; height: 62px; border-radius: 19px; font-size: 1.55rem; }
  .category-head h2 { font-size: 1.45rem; }
  .items-grid, .items-grid.one-item { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .container { width: calc(100% - 18px); }
  .stats { grid-template-columns: 1fr; }
  .quick-link { width: 100%; text-align: center; }
  .item-top { flex-direction: column; align-items: flex-start; }
  .item-actions { display: grid; grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}