:root {
  color-scheme: dark;
  --space: #04050a; --space-2: #0a0c18;
  --glass: rgba(14, 16, 26, 0.72);
  --ink: #f0efec; --ink-2: #c3c2b7; --muted: #8d8b96;
  --hair: rgba(255, 255, 255, 0.08); --ring: rgba(255, 255, 255, 0.12);
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500; --s5: #d55181;
  --accent: #b9c6ff;
  --font: "Pretendard", system-ui, -apple-system, "Apple SD Gothic Neo", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font); color: var(--ink); -webkit-font-smoothing: antialiased; line-height: 1.6;
  background:
    radial-gradient(ellipse 70% 50% at 20% 0%, rgba(57, 135, 229, 0.14), transparent 70%),
    radial-gradient(ellipse 60% 50% at 90% 10%, rgba(213, 81, 129, 0.10), transparent 70%),
    linear-gradient(180deg, var(--space-2), var(--space) 60%) fixed;
  min-height: 100vh;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; opacity: 0.5; z-index: -1;
  background-image:
    radial-gradient(1px 1px at 12% 18%, #fff8 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 12%, #fff6 50%, transparent 51%),
    radial-gradient(1px 1px at 33% 82%, #fff5 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 66%, #fff6 50%, transparent 51%),
    radial-gradient(1px 1px at 52% 8%, #fff4 50%, transparent 51%),
    radial-gradient(1px 1px at 6% 58%, #fff5 50%, transparent 51%),
    radial-gradient(1px 1px at 64% 92%, #fff4 50%, transparent 51%);
  background-size: 320px 320px;
}
a { color: inherit; }
button, input { font: inherit; color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.02em; font-size: 18px; text-decoration: none; }
.brand .mark { width: 26px; height: 26px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff, #b9c6ff 45%, #3987e5 100%); box-shadow: 0 0 18px rgba(185, 198, 255, 0.6); }
.nav-links { display: flex; gap: 16px; font-size: 14px; color: var(--ink-2); align-items: center; }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; gap: 10px; border: 0; cursor: pointer; text-decoration: none;
  background: var(--ink); color: #0b0b0b; border-radius: 999px; padding: 13px 22px; font-weight: 700; font-size: 15px;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.06), 0 10px 34px rgba(185, 198, 255, 0.25); transition: transform 0.15s; }
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--ring); box-shadow: none; }
.btn.small { padding: 8px 14px; font-size: 13px; }

.card { background: var(--glass); border: 1px solid var(--ring); border-radius: 20px; padding: 22px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.muted { color: var(--muted); }
.en { color: var(--muted); font-size: 0.86em; font-weight: 500; }

/* landing */
.hero { padding: 72px 0 56px; text-align: center; }
.eyebrow { font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.hero h1 { font-size: clamp(38px, 6vw, 68px); line-height: 1.05; letter-spacing: -0.045em; margin: 0; font-weight: 800;
  background: linear-gradient(120deg, #ffffff 30%, #b9c6ff 70%, #f3b3cf); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lede { font-size: 18px; color: var(--ink-2); max-width: 620px; margin: 18px auto 0; }
.hero .cta { margin-top: 30px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.notice { margin: 18px auto 0; max-width: 520px; font-size: 14px; padding: 10px 14px; border-radius: 12px; border: 1px solid var(--ring); background: rgba(255,255,255,0.04); display: none; }
.notice.on { display: block; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding-bottom: 56px; }
.features .card h3 { margin: 10px 0 6px; font-size: 17px; letter-spacing: -0.01em; }
.features .card p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.features .dot { width: 12px; height: 12px; border-radius: 50%; box-shadow: 0 0 14px currentColor; }
.steps { padding-bottom: 64px; }
.steps h2 { font-size: 22px; letter-spacing: -0.02em; margin: 0 0 14px; }
.steps ol { margin: 0; padding-left: 20px; color: var(--ink-2); }
.steps li { margin: 6px 0; }
@media (max-width: 760px) { .features { grid-template-columns: 1fr; } .hero { padding-top: 40px; } }

/* docs */
.doc { max-width: 760px; margin: 0 auto; padding: 24px 20px 64px; }
.doc h1 { font-size: 32px; letter-spacing: -0.03em; margin: 12px 0 4px; }
.doc h2 { font-size: 19px; margin: 34px 0 8px; letter-spacing: -0.01em; }
.doc p, .doc li { color: var(--ink-2); font-size: 15px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0; }
.doc th, .doc td { border-bottom: 1px solid var(--hair); padding: 9px 8px; text-align: left; vertical-align: top; color: var(--ink-2); }
.doc th { color: var(--muted); font-weight: 500; }
.doc .lang { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--ring); }
.doc .meta { color: var(--muted); font-size: 13px; }

footer.site { border-top: 1px solid var(--hair); padding: 26px 0 40px; font-size: 13px; color: var(--muted); }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: space-between; }
footer.site nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer.site a { text-decoration: none; color: var(--ink-2); }
footer.site .company { line-height: 1.8; }
footer.site .company b { color: var(--ink-2); }
footer.site a:hover { color: var(--ink); }

/* app */
.userbox { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; background: #222; border: 1px solid var(--ring); }
.avatar.lg { width: 64px; height: 64px; }
.app-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; padding: 8px 0 56px; }
@media (max-width: 900px) { .app-grid { grid-template-columns: 1fr; } }
.section-title { display: flex; align-items: baseline; gap: 10px; margin: 0 0 4px; font-size: 19px; letter-spacing: -0.02em; }
.perm { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; color: var(--accent); border: 1px solid rgba(185, 198, 255, 0.35); border-radius: 6px; padding: 2px 6px; }
.form { display: flex; gap: 8px; margin: 14px 0 6px; flex-wrap: wrap; }
.input { flex: 1; min-width: 180px; border: 1px solid var(--ring); background: rgba(255, 255, 255, 0.04); border-radius: 999px; padding: 11px 16px; outline: none; }
.input:focus { border-color: rgba(255, 255, 255, 0.4); }
.seg { display: inline-flex; border: 1px solid var(--ring); border-radius: 999px; overflow: hidden; }
.seg button { border: 0; background: transparent; padding: 9px 14px; cursor: pointer; font-size: 13px; color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: rgba(255, 255, 255, 0.12); color: var(--ink); }
.result { margin-top: 14px; }
.status { font-size: 14px; color: var(--muted); padding: 10px 0; }
.status.err { color: #ff9b9b; }
.pcard { display: flex; gap: 14px; align-items: flex-start; }
.pcard h3 { margin: 0; font-size: 18px; }
.pcard .bio { margin: 6px 0 0; color: var(--ink-2); font-size: 14px; white-space: pre-line; }
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--accent); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 14px 0; }
.stat { border: 1px solid var(--hair); border-radius: 12px; padding: 10px 12px; background: rgba(255, 255, 255, 0.03); }
.stat b { display: block; font-size: 19px; }
.stat span { font-size: 12px; color: var(--muted); }
.post { border-top: 1px solid var(--hair); padding: 12px 0; }
.post .who { font-size: 13px; color: var(--muted); display: flex; gap: 8px; justify-content: space-between; }
.post .who b { color: var(--ink); font-weight: 600; }
.post p { margin: 4px 0 0; font-size: 14.5px; white-space: pre-line; color: var(--ink-2); }
.post a { font-size: 12.5px; color: var(--muted); }
.authors { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.authors button { border: 1px solid var(--ring); background: rgba(255, 255, 255, 0.04); border-radius: 999px; padding: 4px 10px; font-size: 12.5px; cursor: pointer; }
.authors button:hover { border-color: rgba(255, 255, 255, 0.35); }

/* ---------- 대화 은하 (galaxy.js) ---------- */
.galaxy-section { padding: 6px 0 56px; scroll-margin-top: 16px; }
.galaxy-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 4px 0 12px; }
.galaxy-head h2 { margin: 0; font-size: 22px; letter-spacing: -0.02em; }
.gx { --panel-w: 340px; --gap: 16px; --unk: #6f6e7d; --star: #c9c8d4; --edge: rgba(190, 200, 255, 0.5);
  position: relative; height: min(84vh, 860px); min-height: 600px; border: 1px solid var(--ring); border-radius: 22px; overflow: hidden;
  background: radial-gradient(ellipse 60% 50% at 40% 50%, rgba(57, 135, 229, 0.09), transparent 70%), linear-gradient(180deg, var(--space-2), var(--space)); }
.gx-loading { display: grid; place-items: center; text-align: center; color: var(--muted); padding: 24px; }
.gx .gx-canvas { position: absolute; inset: 0; }
.gx .dust { position: absolute; inset: 0; pointer-events: none; opacity: 0.55;
  background-image: radial-gradient(1px 1px at 12% 18%, #fff8 50%, transparent 51%), radial-gradient(1px 1px at 78% 12%, #fff6 50%, transparent 51%),
    radial-gradient(1px 1px at 33% 82%, #fff5 50%, transparent 51%), radial-gradient(1px 1px at 88% 66%, #fff6 50%, transparent 51%),
    radial-gradient(1px 1px at 52% 8%, #fff4 50%, transparent 51%), radial-gradient(1px 1px at 6% 58%, #fff5 50%, transparent 51%);
  background-size: 300px 300px; }
.gx .gx-svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
.gx .gx-svg:active { cursor: grabbing; }
.gx .gx-toolbar { position: absolute; left: var(--gap); bottom: var(--gap); right: calc(var(--panel-w) + var(--gap) * 2 + 60px); z-index: 3;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.gx .chip { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; white-space: nowrap; border: 1px solid var(--ring);
  background: var(--glass); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-radius: 999px; padding: 6px 12px; font-size: 13px; }
.gx .chip:hover { border-color: rgba(255, 255, 255, 0.3); }
.gx .chip .dot { width: 9px; height: 9px; border-radius: 50%; }
.gx .chip .n { color: var(--muted); font-size: 12px; }
.gx .chip[aria-pressed="true"] { border-color: var(--ink); background: rgba(255, 255, 255, 0.12); }
.gx .gx-toggle { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; color: var(--ink-2); background: var(--glass);
  border: 1px solid var(--ring); border-radius: 999px; padding: 6px 12px; cursor: pointer; }
.gx .gx-toggle[hidden] { display: none; }
.gx .gx-zoom { position: absolute; right: calc(var(--panel-w) + var(--gap) * 2); bottom: var(--gap); z-index: 3; display: flex; flex-direction: column; overflow: hidden; border-radius: 14px; padding: 0; }
.gx .gx-zoom button { width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer; font-size: 18px; color: var(--ink); }
.gx .gx-zoom button + button { border-top: 1px solid var(--hair); }
.gx .gx-zoom button:hover { background: rgba(255, 255, 255, 0.08); }
.gx .gx-zoom .lvl { font-size: 11px; color: var(--muted); text-align: center; padding: 5px 0; border-top: 1px solid var(--hair); font-variant-numeric: tabular-nums; }
.gx .gx-focusbar { position: absolute; top: var(--gap); left: calc((100% - var(--panel-w) - var(--gap)) / 2); transform: translateX(-50%); z-index: 3;
  display: none; align-items: center; gap: 12px; padding: 7px 7px 7px 15px; font-size: 14px; white-space: nowrap; border-radius: 999px; }
.gx .gx-focusbar.on { display: flex; }
.gx .gx-focusbar button { border: 1px solid var(--ring); background: rgba(255, 255, 255, 0.06); border-radius: 999px; padding: 5px 11px; cursor: pointer; font-size: 13px; }
.gx .gx-tip { position: absolute; pointer-events: none; z-index: 6; opacity: 0; transition: opacity 0.12s; background: rgba(14, 16, 26, 0.94);
  border: 1px solid var(--ring); border-radius: 12px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); padding: 9px 12px; font-size: 13px; line-height: 1.5; max-width: 270px; }
.gx .gx-tip .t-name { font-weight: 650; }
.gx .gx-tip .t-sub, .gx .gx-tip .t-quote { color: var(--ink-2); }
.gx .gx-panel { position: absolute; top: var(--gap); right: var(--gap); bottom: var(--gap); width: var(--panel-w); z-index: 4; overflow: auto;
  padding: 18px; border-radius: 18px; scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, 0.15) transparent; }

/* marks */
.gx .nebula, .gx .edge, .gx .label, .gx .ringguide, .gx .ringtext { pointer-events: none; }
.gx .edge { transition: opacity 0.3s; }
.gx .node { cursor: pointer; transition: opacity 0.35s; outline: none; }
.gx .node.hidden { opacity: 0; pointer-events: none; }
.gx .dim { opacity: 0.08 !important; }
.gx .edge.hot { opacity: 0.95 !important; stroke: #fff !important; }
.gx .node.hl .mark { stroke: #fff !important; stroke-width: 2px !important; }
.gx .quiet .mark { animation: gx-twinkle 4.5s ease-in-out infinite; }
@keyframes gx-twinkle { 0%, 100% { opacity: 0.25; } 50% { opacity: 0.95; } }
.gx .label { font-size: calc(11.5px / var(--k, 1)); fill: var(--ink-2); paint-order: stroke; stroke: var(--space); stroke-width: calc(3px / var(--k, 1)); stroke-linejoin: round; display: none; }
.gx .me-label { font-size: calc(12.5px / var(--k, 1)); fill: var(--ink); font-weight: 700; display: inline; }
.gx .anchor-label { font-size: calc(15px / var(--k, 1)); font-weight: 750; fill: var(--ink); paint-order: stroke; stroke: var(--space); stroke-width: calc(5px / var(--k, 1)); stroke-linejoin: round; }
.gx .anchor-count { font-size: calc(12px / var(--k, 1)); font-weight: 500; fill: var(--ink-2); }
.gx .ringguide { fill: none; stroke: rgba(255, 255, 255, 0.07); stroke-dasharray: 2 6; }
.gx .ringtext { font-size: calc(11px / var(--k, 1)); fill: var(--muted); letter-spacing: 0.04em; }
.gx .layer { transition: opacity 0.9s ease; }
.gx:not(.in) .layer { opacity: 0; }

/* panel */
.gx-panel h2 { font-size: 18px; margin: 0 0 4px; letter-spacing: -0.02em; line-height: 1.35; }
.gx-panel h3 { font-size: 12px; margin: 22px 0 8px; color: var(--muted); font-weight: 600; letter-spacing: 0.06em; }
.gx-panel .muted { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 4px 0 0; }
.gx-panel .back { border: 0; background: none; color: var(--ink-2); font-size: 13px; padding: 0; cursor: pointer; margin-bottom: 12px; }
.gx-panel .rank { list-style: none; margin: 6px -8px 0; padding: 0; }
.gx-panel .rank li { display: flex; align-items: center; gap: 11px; padding: 8px; border-radius: 12px; cursor: pointer; }
.gx-panel .rank li:hover { background: rgba(255, 255, 255, 0.06); }
.gx-panel .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; display: inline-block; }
.gx-panel .who { flex: 1; min-width: 0; }
.gx-panel .who b { display: block; font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gx-panel .who span { font-size: 12px; color: var(--muted); }
.gx-panel .cnt { font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.gx-panel .meter { display: block; height: 3px; border-radius: 2px; margin-top: 5px; }
.gx-panel .badges { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.gx-panel .badge { font-size: 12px; border: 1px solid var(--ring); border-radius: 999px; padding: 3px 10px; color: var(--ink-2); display: inline-flex; gap: 6px; align-items: center; }
.gx-panel .badge .dot { width: 8px; height: 8px; }
.gx-panel .badge.hub { border-color: rgba(255, 255, 255, 0.5); color: var(--ink); }
.gx-panel .tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.gx-panel .tile { border: 1px solid var(--hair); background: rgba(255, 255, 255, 0.03); border-radius: 12px; padding: 9px; }
.gx-panel .tile b { display: block; font-size: 19px; }
.gx-panel .tile span { font-size: 11px; color: var(--muted); }
.gx-panel .quote { border-left: 2px solid var(--ring); padding: 2px 0 2px 12px; margin: 12px 0; }
.gx-panel .q-post, .gx-panel .q-date { font-size: 12px; color: var(--muted); }
.gx-panel .q-text { font-size: 14px; line-height: 1.6; white-space: pre-line; margin: 3px 0 0; color: var(--ink-2); }
.gx-panel .ext { display: inline-block; margin-top: 14px; font-size: 13px; text-decoration: none; border: 1px solid var(--ring); border-radius: 999px; padding: 7px 13px; }
.gx-panel .note { font-size: 12px; color: var(--muted); line-height: 1.6; padding: 9px 11px; border-radius: 10px; background: rgba(255, 255, 255, 0.03); border: 1px dashed var(--ring); }
.gx-panel .catbars { display: grid; gap: 7px; }
.gx-panel .catbar { display: grid; grid-template-columns: 92px 1fr 30px; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-2); cursor: pointer; }
.gx-panel .catbar .track { height: 8px; border-radius: 4px; background: rgba(255, 255, 255, 0.05); overflow: hidden; }
.gx-panel .catbar .fill { height: 100%; border-radius: 4px; }
.gx-panel .catbar .v { text-align: right; color: var(--ink); font-variant-numeric: tabular-nums; }
.gx-panel .legend { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 13px; color: var(--ink-2); }
.gx-panel .legend li { display: flex; gap: 10px; align-items: center; }
.gx-panel .pcard { display: flex; gap: 12px; align-items: center; }

@media (max-width: 900px) {
  .gx { height: auto; min-height: 0; overflow: visible; border: 0; border-radius: 0; background: none; }
  .gx .gx-canvas { position: relative; height: 70vh; min-height: 440px; border: 1px solid var(--ring); border-radius: 18px; overflow: hidden;
    background: linear-gradient(180deg, var(--space-2), var(--space)); }
  .gx .gx-toolbar { position: static; margin-bottom: 12px; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .gx .gx-zoom { right: 12px; bottom: 12px; }
  .gx .gx-focusbar { left: 50%; top: 12px; max-width: calc(100% - 24px); }
  .gx .gx-panel { position: static; width: auto; margin-top: 14px; }
}
@media (prefers-reduced-motion: reduce) { .gx .quiet .mark { animation: none; opacity: 0.55; } .gx .layer, .gx .node, .gx .edge { transition: none; } }