:root {
  --ink: #1a2332;
  --muted: #5a6a7e;
  --line: rgba(26, 35, 50, 0.12);
  --accent: #c45c26;
  --teal: #0f7a62;
  --paper: #f7f4ee;
  --band: #ebe4d8;
  /* CJK/Arabic first so localized titles do not fall through to Latin-only serifs. */
  --font: "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Hiragino Sans",
    "PingFang SC", "Noto Sans SC", "Noto Sans Arabic",
    "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Hiragino Sans",
    "PingFang SC", "Segoe UI", "Avenir Next", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 92, 38, 0.14), transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(15, 122, 98, 0.12), transparent 45%),
    linear-gradient(165deg, var(--band), var(--paper) 55%, #fffef9);
}
body.landing {
  position: relative;
  isolation: isolate;
  background: #c9e4f7;
  --halo: #ffffff;
}
body.landing .wrap {
  position: relative;
  z-index: 1;
}
body.landing .kicker,
body.landing h1,
body.landing .lede,
body.landing .block h2,
body.landing .block p,
body.landing .block li,
body.landing .block strong,
body.landing .site-nav a,
body.landing .pol-net-dir,
body.landing .pol-net-list a,
body.landing .pol-net-list .is-current {
  -webkit-text-stroke: 0.55px var(--halo);
  text-shadow:
    0 0 28px var(--halo),
    0 0 16px var(--halo),
    0 0 8px var(--halo),
    0 0 3px var(--halo),
    1px 0 0 var(--halo),
    -1px 0 0 var(--halo),
    0 1px 0 var(--halo),
    0 -1px 0 var(--halo),
    2px 1px 0 var(--halo),
    -2px 1px 0 var(--halo),
    1px 2px 0 var(--halo),
    -1px 2px 0 var(--halo),
    2px 2px 0 var(--halo),
    -2px 2px 0 var(--halo);
}
body.landing .kicker { font-weight: 800; }
body.landing h1 { font-weight: 800; }
body.landing .lede { font-weight: 700; }
body.landing .block h2 { font-weight: 800; }
body.landing .block p { font-weight: 700; }
@media (prefers-color-scheme: dark) {
  body.landing {
    background: #16101a;
    --halo: #f4ead8;
  }
}
html[data-theme="light"] body.landing {
  background: #c9e4f7;
  --halo: #ffffff;
}
html[data-theme="dark"] body.landing {
  background: #16101a;
  --halo: #f4ead8;
}
.wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
  animation: rise 0.7s ease both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: none; }
}
.kicker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}
.kicker::before {
  content: "";
  width: 1.7rem;
  height: 1.7rem;
  flex: none;
  border-radius: 0.45rem;
  background: url("/favicon.svg") center / cover no-repeat;
}
h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font);
  font-size: clamp(1.75rem, 4.5vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.lede {
  margin: 0 0 1.75rem;
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 700;
}
.block {
  margin: 0 0 1.5rem;
}
.block h2 {
  margin: 0 0 0.45rem;
  font-family: var(--font);
  font-size: 1.15rem;
  font-weight: 700;
}
.block p, .block li {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-weight: 700;
}
.block ul {
  margin: 0 0 0.65rem;
  padding-left: 1.25rem;
  color: var(--muted);
}
.block a { color: var(--teal); font-weight: 600; }
.block a:hover { color: var(--accent); }
.block strong { color: var(--ink); font-weight: 600; }
.updated {
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin: 0 0 1rem;
}
.toolbar .lang { margin: 0; }
.lang {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 1rem;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.34);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow:
    0 10px 28px rgba(30, 50, 70, 0.1),
    0 1px 0 rgba(255, 255, 255, 0.7) inset;
}
.lang button,
.theme-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.4rem 0.82rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.lang button[aria-pressed="true"],
.theme-btn[aria-pressed="true"] {
  color: var(--teal);
  background: linear-gradient(180deg, #fff, rgba(255, 255, 255, 0.78));
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 4px 12px rgba(15, 122, 98, 0.16);
}
.theme-btn {
  background: rgba(255, 255, 255, 0.34);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow:
    0 10px 28px rgba(30, 50, 70, 0.1),
    0 1px 0 rgba(255, 255, 255, 0.7) inset;
  letter-spacing: 0.12em;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}
.site-nav a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--teal);
  text-decoration: none;
}
.site-nav a:hover { text-decoration: underline; color: var(--accent); }
.pol-net {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.pol-net-dir {
  display: inline-block;
  margin-bottom: 0.55rem;
  text-decoration: none;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}
.pol-net-dir:hover { text-decoration: underline; }
.pol-net-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
}
.pol-net-list a,
.pol-net-list .is-current {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
}
.pol-net-list a:hover { color: var(--teal); }
.pol-net-list .is-current {
  color: var(--ink);
  font-weight: 600;
}
@media (prefers-reduced-motion: reduce) {
  .wrap { animation: none; }
  .cta { transition: none; }
  .cta:hover { transform: none; }
}
.cta-row { margin: 0 0 2rem; }
.cta {
  display: inline-block;
  padding: 0.88rem 2rem;
  border-radius: 999px;
  color: #fffef9;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.38);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0) 46%),
    linear-gradient(165deg, #1caa88, #0f7a62 52%, #0b5e4b);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 -2px 0 rgba(0, 0, 0, 0.14) inset,
    0 12px 28px rgba(15, 122, 98, 0.32);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.cta:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.55) inset,
    0 -2px 0 rgba(0, 0, 0, 0.14) inset,
    0 16px 32px rgba(15, 122, 98, 0.38);
}

html[data-theme="dark"] body.landing {
  --ink: #f6ead8;
  --muted: #e4d5c3;
  --line: rgba(232, 160, 74, 0.35);
  --accent: #f0bc74;
  --teal: #e8a04a;
  --halo: #1a1014;
}
html[data-theme="dark"] body.landing .lang {
  background: rgba(12, 8, 10, 0.48);
  border-color: rgba(232, 160, 74, 0.28);
  box-shadow:
    0 12px 32px rgba(0, 0, 0, 0.32),
    0 1px 0 rgba(255, 220, 160, 0.14) inset;
}
html[data-theme="dark"] body.landing .theme-btn {
  background: rgba(12, 8, 10, 0.48);
  color: #f6ead8;
  border-color: rgba(232, 160, 74, 0.28);
  box-shadow:
    0 12px 32px rgba(0, 0, 0, 0.32),
    0 1px 0 rgba(255, 220, 160, 0.14) inset;
}
html[data-theme="dark"] body.landing .lang button {
  color: rgba(246, 234, 216, 0.72);
}
html[data-theme="dark"] body.landing .lang button[aria-pressed="true"],
html[data-theme="dark"] body.landing .theme-btn[aria-pressed="true"] {
  color: #1a1014;
  background: linear-gradient(180deg, #f6d08a, #e8a04a 70%);
  box-shadow:
    0 1px 0 rgba(255, 248, 230, 0.7) inset,
    0 4px 14px rgba(232, 160, 74, 0.35);
}
html[data-theme="dark"] body.landing .cta {
  color: #1a1014;
  border-color: rgba(255, 236, 190, 0.55);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0) 48%),
    linear-gradient(165deg, #f6d08a, #e8a04a 48%, #c9842c);
  box-shadow:
    0 1px 0 rgba(255, 248, 230, 0.75) inset,
    0 -2px 0 rgba(90, 50, 10, 0.22) inset,
    0 14px 32px rgba(232, 160, 74, 0.42),
    0 0 28px rgba(232, 160, 74, 0.22);
}
html[data-theme="dark"] body.landing .cta:hover {
  filter: brightness(1.05);
  box-shadow:
    0 1px 0 rgba(255, 248, 230, 0.8) inset,
    0 -2px 0 rgba(90, 50, 10, 0.22) inset,
    0 18px 36px rgba(232, 160, 74, 0.5),
    0 0 34px rgba(232, 160, 74, 0.28);
}