:root {
  --paper: #f7f7f2;
  --paper-strong: #ffffff;
  --ink: #111111;
  --muted: #5a5a55;
  --line: #d9d9d0;
  --accent: #d7ff32;
  --accent-strong: #b7ea00;
  --charcoal: #1f1f1b;
  --shadow: 0 24px 60px rgba(17, 17, 17, 0.12);
  --radius: 8px;
  --max-width: 1180px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.035) 1px, transparent 1px) 0 0 / 72px 72px,
    var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR",
    "Apple SD Gothic Neo", Arial, sans-serif;
  line-height: 1.6;
}

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

button {
  font: inherit;
}

.lang.lang-ko {
  display: contents;
}

.lang.lang-en,
body[data-lang="en"] .lang.lang-ko {
  display: none !important;
}

body[data-lang="en"] .lang.lang-en {
  display: contents !important;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 16px auto 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(247, 247, 242, 0.88);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 30px rgba(17, 17, 17, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-size: 0.95rem;
  font-weight: 950;
  letter-spacing: 0.08em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: var(--accent);
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 950;
}

.brand--footer {
  margin-bottom: 8px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
}

.site-nav a,
.language-switcher button,
.filter-button,
.button {
  border: 1px solid var(--ink);
  border-radius: 999px;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

.site-nav a {
  padding: 8px 13px;
  color: var(--charcoal);
  font-size: 0.85rem;
  font-weight: 850;
}

.site-nav a:hover,
.language-switcher button:hover,
.filter-button:hover,
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 0 var(--ink);
}

.language-switcher {
  display: inline-flex;
  gap: 6px;
}

.language-switcher button {
  min-width: 44px;
  padding: 8px 10px;
  background: var(--paper-strong);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 950;
}

.language-switcher button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--accent);
}

main {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.68fr);
  gap: 24px;
  align-items: stretch;
}

.hero {
  padding: 46px 0 32px;
}

.hero-copy,
.hero-panel,
.feature-card,
.mini-card,
.trend-card,
.data-card,
.legal-card {
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: var(--shadow);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 500px;
  padding: clamp(24px, 4vw, 46px);
}

.eyebrow,
.mini-label,
.data-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 850px;
  margin-bottom: 22px;
  font-size: clamp(2.9rem, 6.2vw, 5.35rem);
  font-weight: 1000;
  line-height: 0.95;
  letter-spacing: 0;
  text-wrap: balance;
}

body[data-lang="ko"] h1 {
  font-size: clamp(2.55rem, 5.2vw, 4.35rem);
  line-height: 1.04;
  word-break: keep-all;
}

.hero-deck {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.22rem);
  font-weight: 650;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  font-weight: 950;
}

.button--primary {
  background: var(--accent);
}

.button--ghost {
  background: var(--paper-strong);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: var(--charcoal);
  color: var(--paper-strong);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.panel-header strong {
  color: var(--paper-strong);
  font-size: 1.1rem;
}

.signal-list {
  display: grid;
  gap: 12px;
  padding-top: 14px;
}

.signal-list article {
  min-height: 132px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
}

.signal-list h2 {
  margin-bottom: 8px;
  font-size: 1.25rem;
  line-height: 1.12;
}

.signal-list p {
  margin-bottom: 0;
  color: #d6d6cf;
  font-size: 0.95rem;
}

.signal-index {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 950;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin: 0 0 32px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
}

.stats-bar div {
  min-height: 112px;
  padding: 16px;
  background: var(--accent);
}

.stats-bar strong {
  display: block;
  font-size: clamp(1.65rem, 3.4vw, 2.75rem);
  font-weight: 1000;
  line-height: 1;
}

.stats-bar span {
  display: block;
  margin-top: 10px;
  font-size: 0.92rem;
  font-weight: 850;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  margin: 32px 0;
}

.feature-card {
  padding: clamp(26px, 5vw, 48px);
}

.feature-card h2,
.section-heading h2,
.legal-hero h1 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 5vw, 4.4rem);
  font-weight: 1000;
  line-height: 0.98;
  letter-spacing: 0;
}

.feature-card p:not(.eyebrow),
.section-heading p:not(.eyebrow),
.legal-card p {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 620;
}

.side-stack {
  display: grid;
  gap: 24px;
}

.mini-card {
  padding: 22px;
}

.mini-card ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 20px;
  color: var(--charcoal);
  font-weight: 850;
}

.section-block {
  margin: 54px 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 24px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.filter-button {
  padding: 9px 14px;
  background: var(--paper-strong);
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 950;
}

.filter-button.is-active {
  background: var(--ink);
  color: var(--accent);
}

.trend-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.trend-card {
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 24px;
}

.trend-card.is-hidden {
  display: none;
}

.trend-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--accent);
  font-size: 0.8rem;
  font-weight: 1000;
}

.trend-card h3 {
  margin-bottom: 12px;
  font-size: 1.55rem;
  font-weight: 1000;
  line-height: 1.05;
}

.trend-card p {
  color: var(--muted);
  font-weight: 620;
}

.trend-card strong {
  display: block;
  margin-top: auto;
  padding-top: 20px;
  color: var(--charcoal);
  font-size: 0.88rem;
  font-weight: 950;
}

.split-section {
  display: grid;
  grid-template-columns: 0.76fr 1.24fr;
  gap: 24px;
  align-items: start;
}

.wiki-table {
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper-strong);
  box-shadow: var(--shadow);
}

.wiki-row {
  display: grid;
  grid-template-columns: 0.95fr 1.15fr 1.5fr;
  border-top: 1px solid var(--line);
}

.wiki-row:first-child {
  border-top: 0;
}

.wiki-row > div {
  padding: 16px;
  border-left: 1px solid var(--line);
  font-weight: 700;
}

.wiki-row > div:first-child {
  border-left: 0;
}

.wiki-row--head > div {
  background: var(--charcoal);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.data-card {
  min-height: 260px;
  padding: 22px;
}

.data-card strong {
  display: block;
  margin: 18px 0 14px;
  font-size: clamp(2.1rem, 5vw, 4rem);
  font-weight: 1000;
  line-height: 1;
}

.data-card p {
  color: var(--muted);
  font-weight: 720;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 60px auto 24px;
  padding: 26px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--charcoal);
  color: var(--paper-strong);
}

.site-footer p {
  max-width: 600px;
  margin: 0;
  color: #d6d6cf;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.footer-links a {
  color: var(--accent);
  font-weight: 850;
}

.legal-page {
  max-width: 920px;
}

.legal-hero {
  padding: 74px 0 28px;
}

.legal-hero p:not(.eyebrow) {
  color: var(--muted);
  font-weight: 750;
}

.legal-card {
  padding: clamp(24px, 5vw, 46px);
}

.legal-card section + section {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.legal-card h2 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  font-weight: 1000;
}

.legal-card a {
  color: var(--ink);
  font-weight: 950;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .section-grid,
  .content-layout,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: auto;
  }

  .hero-panel {
    min-height: auto;
  }

  .trend-grid,
  .data-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  body {
    background-size: 48px 48px;
  }

  .site-header,
  main,
  .site-footer {
    width: min(100% - 20px, var(--max-width));
  }

  .site-nav a {
    padding: 7px 10px;
  }

  h1 {
    font-size: clamp(2.35rem, 14vw, 4rem);
  }

  body[data-lang="ko"] h1 {
    font-size: clamp(2.15rem, 11.5vw, 3.35rem);
  }

  .hero {
    padding-top: 34px;
  }

  .hero-copy,
  .feature-card,
  .trend-card,
  .data-card,
  .legal-card {
    padding: 20px;
  }

  .stats-bar,
  .trend-grid,
  .data-grid {
    grid-template-columns: 1fr;
  }

  .wiki-table {
    overflow-x: auto;
  }

  .wiki-row {
    min-width: 760px;
  }

  .site-footer {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}