/* Baryon AX intro site — no external requests, system fonts only */
:root {
  --bg: #0b1020;
  --bg-2: #0d1728;
  --surface: #101b2d;
  --surface-2: #14223a;
  --surface-3: #182a49;
  --border: #273a59;
  --border-strong: #35507a;
  --text: #e9edf5;
  --muted: #98a8bf;
  --muted-2: #71829b;
  --blue: #6c9dec;
  --blue-light: #8cb3f2;
  --blue-strong: #4f76b8;
  --green: #64d9a5;
  --gold: #f0b45a;
  --red: #ff8f8f;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 80px rgba(0, 0, 0, .35);
  --maxw: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR",
    "Malgun Gothic", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "D2Coding", monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(900px 520px at 86% -6%, rgba(79, 118, 184, .26), transparent 62%),
    radial-gradient(720px 420px at -8% 18%, rgba(100, 217, 165, .08), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-light); text-underline-offset: 3px; }
a:hover { color: #dceaff; }
code, pre { font-family: var(--mono); font-size: .88em; }
:not(pre) > code {
  padding: .08em .38em;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #0d1728;
  color: #cfe0ff;
}
::selection { background: rgba(108, 157, 236, .35); color: #fff; }
:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 3px; border-radius: 4px; }
.small { font-size: .85rem; }
.muted { color: var(--muted); }

.wrap { width: min(var(--maxw), 100%); margin: 0 auto; padding: 0 24px; }
.skip {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  padding: 10px 14px; border-radius: 8px; background: #fff; color: #071324; font-weight: 700;
}
.skip:focus { left: 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid rgba(39, 58, 89, .8);
  background: rgba(11, 16, 32, .82);
  backdrop-filter: blur(14px);
}
.site-header .wrap { display: flex; align-items: center; gap: 18px; padding-top: 13px; padding-bottom: 13px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 760; letter-spacing: -.02em; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--blue-strong); border-radius: 10px;
  background: linear-gradient(145deg, #1d3a63, #14223a); color: #dce7ff;
}
.brand-mark svg { width: 19px; height: 19px; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 3px 18px; margin-left: auto; font-size: .93rem; }
.site-nav a { color: #c3d0e2; text-decoration: none; }
.site-nav a:hover, .site-nav a:focus-visible { color: #fff; }
.site-nav .lang { padding: 2px 11px; border: 1px solid var(--border-strong); border-radius: 999px; color: #b9cbe8; }
.nav-toggle {
  display: none; margin-left: auto; width: 42px; height: 40px;
  border: 1px solid var(--border-strong); border-radius: 9px;
  background: var(--surface); color: var(--text); cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 10px 20px; border-radius: 11px;
  border: 1px solid transparent; font-weight: 700; font-size: .95rem;
  text-decoration: none; cursor: pointer; transition: transform .16s ease, background .16s ease, border-color .16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, #8cb3f2, #6c9dec); color: #071324; }
.btn-primary:hover { background: linear-gradient(135deg, #a5c6ff, #7ba9f7); color: #071324; }
.btn-ghost { border-color: var(--border-strong); background: rgba(16, 27, 45, .5); color: #d8e4f5; }
.btn-ghost:hover { border-color: var(--blue-light); color: #fff; }
.text-link { font-weight: 650; text-decoration: none; }
.text-link::after { content: " →"; }

/* Hero */
.hero { position: relative; padding: 72px 0 64px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 44px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--blue-light); font-size: .75rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.release { margin: 0 0 18px; color: var(--muted); font-size: .9rem; }
.release a { color: var(--green); text-decoration: none; font-weight: 700; }
.release a:hover { text-decoration: underline; }
.hero h1 {
  margin: 0 0 20px; font-size: clamp(2.3rem, 5.2vw, 4.15rem);
  line-height: 1.16; letter-spacing: -.045em; font-weight: 800;
}
.hero h1 span {
  background: linear-gradient(100deg, #9dc2ff 5%, #6c9dec 55%, #64d9a5 110%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
html[lang="en"] .hero h1 { font-size: clamp(2.1rem, 2.6vw + .8rem, 2.65rem); letter-spacing: -.04em; }
@media (max-width: 760px) { html[lang="en"] .hero h1 { font-size: clamp(1.9rem, 7vw, 2.6rem); } }
.lead { max-width: 620px; margin: 0 0 12px; color: #d7e1ef; font-size: clamp(1.05rem, 2vw, 1.2rem); line-height: 1.65; }
.sub { max-width: 620px; margin: 0 0 26px; color: var(--muted); font-size: .98rem; }
.cta { display: flex; flex-wrap: wrap; gap: 11px; margin-bottom: 32px; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; padding: 0; margin: 0; list-style: none; }
.facts li { padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .55); }
.facts b { display: block; color: #fff; font-size: 1.45rem; letter-spacing: -.03em; line-height: 1.2; }
.facts span { display: block; margin-top: 4px; color: var(--muted-2); font-size: .76rem; line-height: 1.45; }

.hero-visual { position: relative; min-width: 0; }
.hero-visual::before {
  content: ""; position: absolute; inset: 8% 2% auto auto; width: 78%; height: 78%;
  background: radial-gradient(circle, rgba(108, 157, 236, .28), transparent 66%);
  filter: blur(24px); z-index: -1;
}
.browser {
  position: relative; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 18px;
  background: #0d1728; box-shadow: var(--shadow);
}
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--border); background: #0f1a2c; }
.browser-bar span { width: 9px; height: 9px; border-radius: 50%; background: #334966; }
.browser-bar span:nth-child(1) { background: #ff8f8f; }
.browser-bar span:nth-child(2) { background: #f0b45a; }
.browser-bar span:nth-child(3) { background: #64d9a5; }
.browser-bar em { margin-left: 8px; color: var(--muted-2); font-style: normal; font-size: .72rem; }
.browser > img { width: 100%; }
.float-card {
  position: absolute; display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; border: 1px solid rgba(79, 118, 184, .55); border-radius: 12px;
  background: rgba(13, 23, 40, .9); box-shadow: 0 14px 38px rgba(0, 0, 0, .4);
  backdrop-filter: blur(10px);
}
.float-card strong { color: #fff; font-size: .84rem; }
.float-card span { color: var(--muted); font-size: .7rem; }
.float-citations { left: -22px; bottom: 38px; }
.float-mascot { right: -16px; top: 82px; flex-direction: row; align-items: center; gap: 9px; }
.float-mascot img { width: 34px; height: 34px; }
.float-mascot span { color: #d8e4f5; font-size: .72rem; line-height: 1.35; }

/* Sections */
.section { padding: 78px 0 10px; }
.section.alt { margin-top: 54px; padding-top: 64px; border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(20, 34, 58, .24), transparent 55%); }
.section-head { max-width: 760px; margin-bottom: 30px; }
.section-head h2 { margin: 0 0 12px; font-size: clamp(1.55rem, 3.2vw, 2.35rem); line-height: 1.28; letter-spacing: -.035em; }
.section-head p { margin: 0; color: var(--muted); }
.center { text-align: center; margin-top: 26px; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card {
  padding: 22px; border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(24, 42, 73, .56), rgba(16, 27, 45, .72));
}
.card h3 { margin: 0 0 8px; font-size: 1.06rem; }
.card p { margin: 0; color: var(--muted); font-size: .93rem; }
.icon {
  display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 14px;
  border: 1px solid var(--border-strong); border-radius: 11px; background: #14223a; color: var(--blue-light);
}
.icon svg { width: 21px; height: 21px; }

.overview { margin: 24px 0 0; padding: 10px; border: 1px solid var(--border); border-radius: 14px; background: rgba(16, 27, 45, .55); }
.overview img { border-radius: 9px; border: 1px solid rgba(39, 58, 89, .8); }
.overview figcaption { padding: 10px 6px 2px; color: var(--muted); font-size: .86rem; }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.feature {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px; border: 1px solid var(--border); border-radius: 14px;
  background: rgba(16, 27, 45, .58);
  transition: border-color .16s ease, transform .16s ease, background .16s ease;
}
.feature:hover { transform: translateY(-2px); border-color: var(--border-strong); background: rgba(24, 42, 73, .55); }
.feature-icon {
  flex: 0 0 46px; width: 46px; height: 46px; display: grid; place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent, #6c9dec) 42%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent, #6c9dec) 14%, #101b2d);
}
.feature-icon img { width: 30px; height: 30px; }
.feature h3 { margin: 1px 0 5px; font-size: 1rem; }
.feature p { margin: 0; color: var(--muted); font-size: .88rem; line-height: 1.55; }
.feature .text-link, .start-side .card .text-link { display: inline-block; margin-top: 8px; font-size: .82rem; }

/* Tacit knowledge loop */
.tacit-section { margin-top: 54px; padding-top: 64px; border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(240, 180, 90, .045), transparent 55%); }
.loop-grid { list-style: none; padding: 0; margin: 20px 0 26px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.loop-grid > *, .why-grid > *, .loop-key > * { min-width: 0; }
.loop-grid li { position: relative; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: linear-gradient(160deg, rgba(240, 180, 90, .06), rgba(16, 27, 45, .72)); }
.loop-grid li::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 2px; border-radius: 14px 14px 0 0; background: linear-gradient(90deg, rgba(240, 180, 90, .7), transparent 65%); }
.loop-num { display: inline-block; margin-bottom: 8px; color: var(--gold); font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; }
.loop-grid h3 { margin: 0 0 6px; font-size: 1rem; }
.loop-grid p { margin: 0 0 10px; color: var(--muted); font-size: .88rem; line-height: 1.55; }
.loop-api { display: inline-block; padding: 3px 7px; border: 1px solid var(--border); border-radius: 6px; background: #0d1728; color: var(--blue-light); font-family: var(--mono); font-size: .66rem; overflow-wrap: anywhere; }
.loop-key { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; align-items: center; margin: 26px 0; padding: 24px; border: 1px solid rgba(240, 180, 90, .28); border-radius: 16px; background: linear-gradient(135deg, rgba(240, 180, 90, .08), rgba(16, 27, 45, .62)); }
.loop-key h3 { margin: 0 0 8px; font-size: 1.25rem; letter-spacing: -.02em; }
.loop-key p { margin: 0; color: var(--muted); font-size: .92rem; }
.pipeline { display: flex; flex-wrap: wrap; gap: 7px; }
.pipeline span { padding: 5px 9px; border: 1px solid rgba(240, 180, 90, .3); border-radius: 999px; background: rgba(240, 180, 90, .06); color: #f3d3a5; font-family: var(--mono); font-size: .68rem; }
.pipeline span:not(:last-child)::after { content: " →"; color: var(--muted-2); }
.why-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 18px 0 22px; }
.why-grid .card p { font-size: .88rem; }
.role-panel { margin: 24px 0; }
.role-panel h3 { margin: 0 0 12px; font-size: 1.12rem; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .5); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table-wrap th, .table-wrap td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table-wrap th { background: var(--surface-2); color: #dce7ff; font-weight: 700; white-space: nowrap; }
.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap td strong { color: #eef5ff; }
.tacit-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
@media (max-width: 1020px) { .loop-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .loop-key { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .loop-grid, .why-grid { grid-template-columns: 1fr; } .tacit-section { margin-top: 38px; padding-top: 48px; } }

/* Supported formats */
.formats-section { margin-top: 54px; padding-top: 64px; border-top: 1px solid var(--border); }
.format-callout { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 18px 20px; margin-bottom: 16px; border: 1px solid rgba(108, 157, 236, .28); border-radius: 14px; background: linear-gradient(135deg, rgba(108, 157, 236, .08), rgba(16, 27, 45, .6)); }
.format-callout p { margin: 4px 0 0; color: var(--muted); font-size: .9rem; }
.format-badge { flex: 0 0 auto; padding: 5px 10px; border: 1px solid rgba(108, 157, 236, .4); border-radius: 999px; color: #b9d4ff; font-family: var(--mono); font-size: .7rem; }
.format-table table { min-width: 960px; }
.format-table td, .format-table th { font-size: .88rem; }
.format-table td:first-child, .format-table th:first-child { min-width: 110px; white-space: nowrap; }
.format-table code { font-size: .78rem; white-space: nowrap; }
.format-need { display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: .72rem; font-weight: 700; white-space: nowrap; }
.format-need.basic { color: #bdf3dd; border: 1px solid rgba(100, 217, 165, .35); background: rgba(100, 217, 165, .08); }
.format-need.parsers { color: #f3d3a5; border: 1px solid rgba(240, 180, 90, .35); background: rgba(240, 180, 90, .08); }
.format-need.tika { color: #b9d4ff; border: 1px solid rgba(108, 157, 236, .35); background: rgba(108, 157, 236, .08); }
.format-note { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; margin-top: 14px; border: 1px dashed var(--border-strong); border-radius: 12px; background: rgba(16, 27, 45, .4); }
.format-note strong { flex: 0 0 auto; color: #f0c37a; }
.format-note p { margin: 0; color: var(--muted); font-size: .88rem; }
@media (max-width: 760px) { .formats-section { margin-top: 38px; padding-top: 48px; } .format-callout { flex-direction: column; align-items: flex-start; } .format-note { flex-direction: column; gap: 6px; } }

/* Open-source inventory */
.oss-page .oss-hero { padding-bottom: 30px; }
.oss-hero h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); }
.oss-section { padding-top: 10px; }
.oss-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 0 0 16px; }
.oss-stat { padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .55); }
.oss-stat b { display: block; color: #fff; font-size: 1.7rem; line-height: 1.2; letter-spacing: -.03em; }
.oss-stat span { color: var(--muted); font-size: .8rem; }
.oss-license-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 10px; }
.oss-chip { display: inline-flex; align-items: center; gap: 7px; padding: 5px 9px; border: 1px solid var(--border); border-radius: 999px; background: #0d1728; color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.oss-chip b { color: #cfe0ff; font-weight: 600; }
.oss-chip span { color: var(--green); }
.oss-summary-note { margin: 0 0 22px; color: var(--muted); font-size: .84rem; }
.oss-toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0 0 18px; padding: 12px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .55); }
.oss-toolbar label { display: flex; }
.oss-search { flex: 1 1 240px; }
.oss-search input, .oss-toolbar select { width: 100%; min-height: 38px; padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: 8px; background: #0d1728; color: var(--text); font: inherit; font-size: .85rem; }
.oss-search input::placeholder { color: var(--muted-2); }
.oss-toolbar select { width: auto; min-width: 120px; }
.oss-result { margin-left: auto; color: var(--muted); font-size: .8rem; white-space: nowrap; }
.oss-result b { color: #fff; }
.oss-empty { padding: 24px; margin-bottom: 16px; border: 1px dashed var(--border-strong); border-radius: 12px; color: var(--muted); text-align: center; }
.oss-group { margin: 0 0 26px; }
.oss-group[hidden] { display: none; }
.oss-group-head { display: flex; align-items: baseline; gap: 10px; margin: 0 0 10px; }
.oss-group-head h2 { margin: 0; font-size: 1.15rem; letter-spacing: -.02em; }
.oss-group-head span { color: var(--muted-2); font-family: var(--mono); font-size: .72rem; }
.oss-table { min-width: 680px; }
.oss-table td, .oss-table th { font-size: .85rem; }
.oss-table td:first-child { min-width: 190px; }
.oss-table td:nth-child(2) { min-width: 190px; color: var(--muted); }
.oss-table td:nth-child(3) { min-width: 150px; }
.oss-name { color: inherit; text-decoration: none; }
.oss-name:hover strong { color: var(--blue-light); }
.oss-license { display: inline-block; padding: 3px 7px; border: 1px solid var(--border); border-radius: 5px; background: #0d1728; color: #cfe0ff; font-family: var(--mono); font-size: .72rem; overflow-wrap: anywhere; }
.oss-badge { display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: .7rem; font-weight: 700; white-space: nowrap; }
.oss-badge.active { color: #bdf3dd; border: 1px solid rgba(100, 217, 165, .35); background: rgba(100, 217, 165, .08); }
.oss-badge.optional { color: #b9d4ff; border: 1px solid rgba(108, 157, 236, .35); background: rgba(108, 157, 236, .08); }
.oss-badge.test { color: #c3cbd8; border: 1px solid rgba(152, 168, 191, .3); background: rgba(152, 168, 191, .08); }
.oss-note { display: block; margin-top: 3px; color: var(--muted-2); font-size: .72rem; font-weight: 400; line-height: 1.4; }
.oss-caveats { margin: 34px 0 20px; padding-top: 26px; border-top: 1px solid var(--border); }
.oss-caveats h2 { margin: 0 0 14px; font-size: 1.3rem; }
.oss-caveat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.oss-caveat-grid article { padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .5); }
.oss-caveat-grid h3 { margin: 0 0 6px; font-size: .98rem; }
.oss-caveat-grid p { margin: 0; color: var(--muted); font-size: .86rem; }
.oss-source-note { margin-top: 20px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .45); color: var(--muted); font-size: .86rem; }
.oss-source-note p { margin: 0 0 6px; }
.oss-source-note p:last-child { margin-bottom: 0; }
.oss-source-note code { font-size: .78rem; }
@media (max-width: 1020px) { .oss-stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) {
  .oss-caveat-grid { grid-template-columns: 1fr; }
  .oss-result { margin-left: 0; }
  .oss-toolbar select { min-width: 0; width: 100%; }
  .oss-toolbar label { flex: 1 1 100%; }
  .oss-table { min-width: 0; width: 100%; }
  .oss-table th:nth-child(2), .oss-table td:nth-child(2) { display: none; }
  .oss-table td:first-child, .oss-table td:nth-child(3) { min-width: 0; }
  .oss-table th, .oss-table td { padding: 10px 8px; font-size: .8rem; }
  .oss-license { font-size: .68rem; }
}

/* Gallery */
.gallery { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; align-items: start; }
.gallery figure { margin: 0; padding: 10px; border: 1px solid var(--border); border-radius: 14px; background: rgba(16, 27, 45, .55); }
.gallery figure:first-child { grid-row: span 2; }
.gallery img { border-radius: 9px; border: 1px solid rgba(39, 58, 89, .8); }
.gallery figcaption { padding: 10px 6px 2px; color: var(--muted); font-size: .86rem; }
.gallery figcaption strong { display: block; margin-bottom: 2px; color: #dce7ff; font-size: .92rem; }

/* Start */
.start-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 22px; align-items: start; }
.steps { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 10px; counter-reset: step; }
.steps li { position: relative; padding: 14px 16px 14px 54px; border: 1px solid var(--border); border-radius: 12px; background: rgba(16, 27, 45, .55); }
.steps li::before {
  counter-increment: step; content: counter(step); position: absolute; left: 16px; top: 14px;
  width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%;
  background: var(--blue); color: #071324; font-weight: 800; font-size: .78rem;
}
.steps b { display: block; margin-bottom: 2px; font-size: .95rem; }
.steps span { color: var(--muted); font-size: .86rem; }
.start-side { display: grid; gap: 14px; }
.start-side .card h3 { display: flex; align-items: center; gap: 7px; }
.start-side ul { margin: 8px 0 0; padding-left: 18px; color: var(--muted); font-size: .88rem; }
.start-side li { margin: 3px 0; }
.note { margin: 12px 0 0; color: var(--muted); font-size: .88rem; }

/* Code */
.code-block { max-width: 100%; overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: #08111f; }
.hero-grid > *, .start-grid > *, .security-grid > *, .gallery > *, .grid-3 > *, .feature-grid > *, .help-grid > *, .doc-grid > * { min-width: 0; }
.code-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--border); background: #0d1728; color: var(--muted-2); font-family: var(--mono); font-size: .72rem; }
.copy { padding: 3px 9px; border: 1px solid var(--border-strong); border-radius: 6px; background: #14223a; color: #b9cbe8; font-size: .7rem; cursor: pointer; }
.copy:hover { background: #1d3555; color: #fff; }
.code-block pre { margin: 0; padding: 14px 16px; overflow-x: auto; line-height: 1.6; color: #dbe7f7; }
.code-block pre code { white-space: pre; }

/* Help */
.help-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.help-card { padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: rgba(16, 27, 45, .58); }
.help-num { display: inline-block; margin-bottom: 8px; color: var(--blue); font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; }
.help-card h3 { margin: 0 0 7px; font-size: 1.02rem; }
.help-card p { margin: 0 0 12px; color: var(--muted); font-size: .9rem; }
.help-card .code-block pre { font-size: .78rem; }
.faq { margin-top: 30px; }
.faq h3 { margin: 0 0 12px; font-size: 1.2rem; }
details { border: 1px solid var(--border); border-radius: 11px; background: rgba(16, 27, 45, .48); }
details + details { margin-top: 8px; }
summary { display: flex; justify-content: space-between; gap: 14px; padding: 14px 16px; color: #dce7ff; font-weight: 650; font-size: .94rem; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--blue-light); font-size: 1.2rem; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 16px 16px; color: var(--muted); font-size: .9rem; }
details p + p { padding-top: 0; }
.help-more { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* Security */
.security { margin-top: 58px; padding: 64px 0 10px; border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(24, 42, 73, .34), transparent 70%); }
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.security h2 { margin: 0 0 14px; font-size: clamp(1.5rem, 3vw, 2.2rem); line-height: 1.3; letter-spacing: -.035em; }
.security p { color: var(--muted); }
.security-panel { padding: 22px; border: 1px solid rgba(100, 217, 165, .34); border-radius: 16px; background: linear-gradient(160deg, rgba(23, 52, 47, .5), rgba(16, 27, 45, .7)); box-shadow: 0 20px 60px rgba(0, 0, 0, .25); }
.pipe { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-bottom: 18px; }
.pipe span { padding: 6px 10px; border: 1px solid rgba(100, 217, 165, .34); border-radius: 999px; background: rgba(100, 217, 165, .08); color: #bdf3dd; font-family: var(--mono); font-size: .72rem; }
.pipe span:not(:last-child)::after { content: " →"; color: var(--muted-2); }
.sec-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 0; margin: 0 0 14px; list-style: none; }
.sec-stats li { padding: 12px; border: 1px solid rgba(100, 217, 165, .2); border-radius: 10px; background: rgba(8, 20, 22, .35); }
.sec-stats b { display: block; color: #fff; font-size: 1.35rem; line-height: 1.2; }
.sec-stats span { color: #9fcbb9; font-size: .76rem; }
.security .small { margin: 0; font-size: .8rem; }

/* Docs */
.doc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.doc-card {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 15px 17px; border: 1px solid var(--border); border-radius: 11px;
  background: rgba(16, 27, 45, .5); color: #d8e4f5; text-decoration: none; font-size: .92rem; font-weight: 600;
}
.doc-card span { color: var(--muted-2); font-family: var(--mono); font-size: .7rem; font-weight: 400; }
.doc-card:hover { border-color: var(--border-strong); background: rgba(24, 42, 73, .6); color: #fff; }

/* Footer */
.site-footer { margin-top: 64px; padding: 42px 0 34px; border-top: 1px solid var(--border); background: rgba(8, 14, 27, .6); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: start; }
.footer-brand p { max-width: 460px; margin: 14px 0 0; color: var(--muted); font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: flex-end; font-size: .86rem; }
.footer-links a { color: #b9cbe8; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted-2); font-size: .76rem; }

/* Responsive */
@media (max-width: 1020px) {
  .hero-grid, .security-grid, .start-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 760px; margin-top: 10px; }
  .float-citations { left: 12px; bottom: 16px; }
  .float-mascot { right: 10px; top: 58px; }
  .grid-3, .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery { grid-template-columns: 1fr; }
  .gallery figure:first-child { grid-row: auto; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .site-header .wrap { gap: 10px; }
  .nav-toggle { display: inline-grid; place-items: center; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    padding: 12px 18px 16px; border-bottom: 1px solid var(--border);
    background: rgba(11, 16, 32, .98); box-shadow: 0 20px 40px rgba(0, 0, 0, .35);
  }
  .site-nav.open { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
  .site-nav a { width: 100%; padding: 9px 4px; }
  .site-nav .lang { width: auto; margin-top: 6px; }
  .hero { padding: 48px 0 38px; }
  .hero h1 { font-size: clamp(2.1rem, 10vw, 3.1rem); }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .feature-grid, .help-grid, .doc-grid, .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
  .section { padding-top: 56px; }
  .section.alt { margin-top: 38px; padding-top: 48px; }
  .security { margin-top: 38px; padding-top: 48px; }
  .float-citations { display: none; }
  .float-mascot { top: -18px; right: 8px; }
  .browser-bar em { display: none; }
  .sec-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ==========================================================================
   A+B hybrid light theme — warm paper, forest accent, editorial serif
   ========================================================================== */
:root {
  --paper: #f6f1e7;
  --cream: #fffdf8;
  --forest: #0f5b4e;
  --forest-2: #0a4138;
  --terracotta: #c96f4a;
  --ink: #17211d;
  --ink-soft: #4d5a53;
  --bg: var(--paper);
  --bg-2: #fbf8f1;
  --surface: #fffdf8;
  --surface-2: #f1eadc;
  --surface-3: #e8ddc8;
  --border: #ddd2c0;
  --border-strong: #c9bca6;
  --text: var(--ink);
  --muted: #4d5a53;
  --muted-2: #7d877f;
  --blue: var(--forest);
  --blue-light: var(--forest);
  --blue-strong: var(--forest-2);
  --green: var(--forest);
  --gold: #c8a45c;
  --red: var(--terracotta);
  --shadow: 0 30px 80px rgba(23, 33, 29, .14);
  --font: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --font-serif: "AppleMyungjo", "Nanum Myeongjo", "Noto Serif KR", "Batang", serif;
  color-scheme: light;
}
html { scroll-padding-top: 88px; }
body {
  background:
    radial-gradient(900px 500px at 78% -8%, rgba(200, 164, 92, .14), transparent 62%),
    radial-gradient(700px 500px at -8% 12%, rgba(15, 91, 78, .06), transparent 58%),
    var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
}
a { color: var(--forest); }
::selection { background: rgba(15, 91, 78, .16); color: var(--ink); }
:focus-visible { outline-color: var(--forest); }
:not(pre) > code { background: #efe6d6; border-color: var(--border); color: var(--forest-2); }
h1, h2 { font-family: var(--font-serif); font-weight: 400; letter-spacing: -.04em; }
h3 { font-weight: 700; }

/* Header */
.site-header { background: rgba(246, 241, 231, .88); border-bottom-color: var(--border); }
.brand { color: var(--ink); }
.brand:hover { color: var(--forest); }
.brand-mark { background: var(--forest); border-color: var(--forest); color: var(--cream); box-shadow: 0 6px 16px rgba(15, 91, 78, .16); }
.site-nav { gap: 3px 14px; font-size: .88rem; }
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--forest); }
.site-nav .lang { border-color: var(--border-strong); color: var(--ink-soft); }
.nav-toggle { background: var(--cream); border-color: var(--border); color: var(--ink); }
.header-cta { display: inline-flex; align-items: center; min-height: 38px; padding: 0 16px; border-radius: 8px; background: var(--forest); color: #fffdf7; font-size: .82rem; font-weight: 700; text-decoration: none; }
.header-cta:hover { background: var(--forest-2); color: #fffdf7; }

/* Buttons */
.btn-primary { background: var(--forest); color: #fffdf7; box-shadow: 0 10px 24px rgba(15, 91, 78, .14); }
.btn-primary:hover { background: var(--forest-2); color: #fffdf7; }
.btn-ghost { border-color: var(--border-strong); background: rgba(255, 253, 248, .55); color: var(--ink); }
.btn-ghost:hover { border-color: var(--forest); color: var(--forest); }
.text-link { color: var(--forest); }

/* Hero */
.hero { padding: 64px 0 58px; background: transparent; overflow: visible; }
.hero-grid { grid-template-columns: 1.02fr .98fr; gap: 44px; align-items: center; }
@media (max-width: 1020px) { .hero-grid { grid-template-columns: 1fr; } .hero-visual { margin: 12px auto 0; } }
.eyebrow { color: var(--forest); font-family: var(--font); font-size: .7rem; letter-spacing: .2em; }
.release { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 22px; padding: 5px 11px; border: 1px solid var(--border); border-radius: 999px; background: rgba(255, 253, 248, .65); color: var(--ink-soft); font-size: .74rem; }
.release::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--terracotta); }
.release a { color: var(--forest); }
.hero h1 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(2.6rem, 4.6vw, 3.9rem); line-height: 1.15; letter-spacing: -.05em; color: var(--ink); }
.hero h1 span { background: none; -webkit-background-clip: initial; background-clip: initial; color: var(--forest); }
.lead { color: var(--ink); font-size: clamp(1.05rem, 1.6vw, 1.22rem); }
.sub { color: var(--ink-soft); }
.facts { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.facts li { padding: 14px 18px 14px 0; border: 0; background: transparent; border-radius: 0; }
.facts li + li { border-left: 1px solid var(--border); padding-left: 18px; }
.facts li:nth-child(3) { border-left: 0; padding-left: 0; }
.facts li:nth-child(3), .facts li:nth-child(4) { border-top: 1px solid var(--border); }
.facts li:nth-child(4) { border-left: 1px solid var(--border); }
.facts b { color: var(--ink); font-size: 1.5rem; }
.facts span { color: var(--muted); }
.hero-visual { position: relative; min-width: 0; }
.hero-visual::before { content: ""; position: absolute; width: 88%; aspect-ratio: 1; left: 8%; top: 1%; border-radius: 52% 48% 44% 56% / 46% 54% 46% 54%; background: #e8ddc8; filter: none; z-index: 0; }
.hero-visual::after { content: ""; position: absolute; width: 42%; aspect-ratio: 1; right: -3%; bottom: -4%; border-radius: 50%; border: 1px solid rgba(200, 164, 92, .55); z-index: 0; }
.browser { position: relative; z-index: 2; padding: 9px; border: 1px solid var(--border); border-radius: 18px; background: var(--cream); box-shadow: var(--shadow); transform: rotate(-1.1deg); }
.browser-bar { display: none; }
.browser > img { border-radius: 11px; }
.float-card { z-index: 3; border-color: var(--border); background: rgba(255, 253, 248, .94); box-shadow: 0 14px 34px rgba(23, 33, 29, .12); }
.float-card strong { color: var(--ink); }
.float-card span { color: var(--muted); }
.float-citations { left: -18px; bottom: 34px; }
.float-mascot { right: -12px; top: -18px; }
.float-mascot span { color: var(--ink-soft); }

/* Section rhythm */
.section { padding: 84px 0 10px; }
.section.alt { margin-top: 54px; padding-top: 72px; border-top-color: var(--border); background: linear-gradient(180deg, rgba(255, 253, 248, .55), transparent 60%); }
.section-head { max-width: 820px; }
.section-head h2 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.8rem, 3vw, 2.6rem); line-height: 1.28; letter-spacing: -.04em; color: var(--ink); }
.section-head p { color: var(--muted); }
.card { background: rgba(255, 253, 248, .66); border-color: var(--border); }
.card h3 { color: var(--ink); }
.card p { color: var(--muted); }
.icon { border-color: var(--border); background: var(--surface-2); color: var(--forest); }
.feature { background: rgba(255, 253, 248, .5); border-color: var(--border); }
.feature:hover { background: var(--cream); border-color: var(--border-strong); }
.feature-icon { background: color-mix(in srgb, var(--accent, #0f5b4e) 12%, #fffdf8); border-color: color-mix(in srgb, var(--accent, #0f5b4e) 30%, #ddd2c0); }
.feature h3 { color: var(--ink); }
.feature p { color: var(--muted); }
.feature .text-link { color: var(--forest); }
.overview { background: rgba(255, 253, 248, .6); border-color: var(--border); }
.overview figcaption { color: var(--muted); }
.gallery figure { background: rgba(255, 253, 248, .6); border-color: var(--border); }
.gallery img { border-color: var(--border); }
.gallery figcaption { color: var(--muted); }
.gallery figcaption strong { color: var(--ink); }

/* Start + code */
.steps li { background: rgba(255, 253, 248, .55); border-color: var(--border); }
.steps li::before { background: var(--forest); color: #fffdf7; }
.steps b { color: var(--ink); }
.steps span { color: var(--muted); }
.start-side, .start-side > *, .start-side .card, .help-card, .help-card .code-block { min-width: 0; }
.start-side .card { background: rgba(255, 253, 248, .6); }
.start-side ul { color: var(--muted); }
.start-side .card .text-link { color: var(--forest); }
.note { color: var(--muted); }
.code-block { background: #efe6d6; border-color: var(--border); }
.code-head { background: #e8ddc8; border-bottom-color: var(--border); color: var(--muted); }
.copy { background: var(--cream); border-color: var(--border-strong); color: var(--forest); }
.copy:hover { background: #fffdf8; color: var(--forest-2); }
.code-block pre { color: var(--ink); }
.code-block pre code { color: var(--ink); }

/* Help + FAQ */
.help-card { background: rgba(255, 253, 248, .6); border-color: var(--border); }
.help-num { color: var(--gold); }
.help-card h3 { color: var(--ink); }
.help-card p { color: var(--muted); }
.faq h3 { color: var(--ink); }
details { background: rgba(255, 253, 248, .55); border-color: var(--border); }
summary { color: var(--ink); }
summary::after { color: var(--forest); }
details p { color: var(--muted); }

/* Security */
.security { background: #edf1ea; border-top-color: var(--border); }
.security h2 { font-family: var(--font-serif); font-weight: 400; color: var(--ink); }
.security p { color: var(--muted); }
.security-panel { background: rgba(255, 253, 248, .75); border-color: rgba(15, 91, 78, .28); box-shadow: 0 20px 60px rgba(23, 33, 29, .08); }
.pipe span { color: var(--forest); border-color: rgba(15, 91, 78, .25); background: rgba(15, 91, 78, .07); }
.pipe span::after { color: var(--muted-2); }
.sec-stats li { background: rgba(255, 253, 248, .65); border-color: rgba(15, 91, 78, .18); }
.sec-stats b { color: var(--ink); }
.sec-stats span { color: var(--forest); }
.security .small { color: var(--muted); }

/* Docs + footer */
.doc-card { background: rgba(255, 253, 248, .55); border-color: var(--border); color: var(--ink); }
.doc-card span:first-child { color: var(--ink); font-family: var(--font); font-size: .92rem; font-weight: 600; }
.doc-card span:last-child { color: var(--muted-2); font-family: var(--font); font-size: .72rem; font-weight: 400; }
.doc-card:hover { background: var(--cream); border-color: var(--forest); color: var(--forest); }
.site-footer { background: rgba(255, 253, 248, .45); border-top-color: var(--border); }
.footer-brand p { color: var(--muted); }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--forest); }
.footer-bottom { color: var(--muted-2); border-top-color: var(--border); }

/* Formats */
.formats-section { border-top-color: var(--border); background: transparent; }
.format-callout { background: rgba(255, 253, 248, .65); border-color: rgba(15, 91, 78, .2); }
.format-callout p { color: var(--muted); }
.format-badge { border-color: rgba(15, 91, 78, .3); color: var(--forest); }
.format-table { background: rgba(255, 253, 248, .55); border-color: var(--border); }
.format-table th { background: var(--surface-2); color: var(--ink); }
.format-table td { color: var(--ink); }
.format-table td:last-child { color: var(--muted); }
.format-table code { background: #efe6d6; border-color: var(--border); color: var(--forest-2); }
.format-need.basic { color: var(--forest); background: rgba(15, 91, 78, .08); border-color: rgba(15, 91, 78, .25); }
.format-need.parsers { color: #8a6420; background: rgba(200, 164, 92, .14); border-color: rgba(200, 164, 92, .35); }
.format-need.tika { color: var(--forest); background: rgba(15, 91, 78, .06); border-color: rgba(15, 91, 78, .2); }
.format-note { background: rgba(255, 253, 248, .55); border-color: var(--border-strong); }
.format-note strong { color: var(--terracotta); }
.format-note p { color: var(--muted); }

/* Tacit */
.tacit-section { background: linear-gradient(180deg, rgba(200, 164, 92, .08), transparent 55%); border-top-color: var(--border); }
.loop-grid li { background: rgba(255, 253, 248, .65); border-color: var(--border); }
.loop-grid li::before { background: linear-gradient(90deg, rgba(200, 164, 92, .7), transparent 65%); }
.loop-num { color: var(--gold); }
.loop-grid h3 { color: var(--ink); }
.loop-grid p { color: var(--muted); }
.loop-api { background: #efe6d6; border-color: var(--border); color: var(--forest); }
.loop-key { background: rgba(255, 253, 248, .7); border-color: rgba(200, 164, 92, .35); }
.loop-key h3 { color: var(--ink); }
.loop-key p { color: var(--muted); }
.pipeline span { background: rgba(200, 164, 92, .1); border-color: rgba(200, 164, 92, .3); color: #8a6420; }
.pipeline span::after { color: var(--muted-2); }
.why-grid .card { background: rgba(255, 253, 248, .6); }
.role-panel h3 { color: var(--ink); }
.table-wrap { background: rgba(255, 253, 248, .6); border-color: var(--border); }
.table-wrap th { background: var(--surface-2); color: var(--ink); }
.table-wrap td { color: var(--ink); }
.table-wrap td strong { color: var(--ink); }
.table-wrap th, .table-wrap td { border-bottom-color: var(--border); }

/* Open-source page */
.oss-stats, .oss-toolbar, .oss-caveat-grid article, .oss-source-note { background: rgba(255, 253, 248, .62); border-color: var(--border); }
.oss-stat { background: rgba(255, 253, 248, .62); border-color: var(--border); }
.oss-stat b { color: var(--ink); }
.oss-stat span { color: var(--muted); }
.oss-chip { background: var(--cream); border-color: var(--border); color: var(--muted); }
.oss-chip b { color: var(--forest); }
.oss-chip span { color: var(--terracotta); }
.oss-summary-note { color: var(--muted); }
.oss-search input, .oss-toolbar select { background: var(--cream); border-color: var(--border); color: var(--ink); }
.oss-search input::placeholder { color: var(--muted-2); }
.oss-result { color: var(--muted); }
.oss-result b { color: var(--ink); }
.oss-empty { border-color: var(--border-strong); color: var(--muted); }
.oss-group-head h2 { font-family: var(--font-serif); font-weight: 400; color: var(--ink); }
.oss-group-head span { color: var(--muted-2); }
.oss-table th { background: var(--surface-2); color: var(--ink); }
.oss-table td { color: var(--ink); }
.oss-table td:nth-child(2) { color: var(--muted); }
.oss-name { color: var(--ink); }
.oss-name:hover strong { color: var(--forest); }
.oss-license { background: #efe6d6; border-color: var(--border); color: var(--forest-2); }
.oss-badge.active { color: var(--forest); background: rgba(15, 91, 78, .08); border-color: rgba(15, 91, 78, .25); }
.oss-badge.optional { color: #8a6420; background: rgba(200, 164, 92, .12); border-color: rgba(200, 164, 92, .3); }
.oss-badge.test { color: var(--muted); background: rgba(125, 135, 127, .08); border-color: rgba(125, 135, 127, .25); }
.oss-note { color: var(--muted-2); }
.oss-caveats h2 { font-family: var(--font-serif); font-weight: 400; color: var(--ink); }
.oss-caveat-grid h3 { color: var(--ink); }
.oss-caveat-grid p { color: var(--muted); }
.oss-source-note { color: var(--muted); }
.oss-source-note a { color: var(--forest); }

/* Mobile */
@media (max-width: 1020px) {
  .site-header .wrap { flex-wrap: nowrap; gap: 10px; }
  .brand { white-space: nowrap; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; padding: 12px 18px 16px; border-bottom: 1px solid var(--border); background: var(--paper); box-shadow: 0 20px 40px rgba(23, 33, 29, .12); }
  .site-nav.open { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
  .site-nav a { width: 100%; padding: 9px 4px; }
  .site-nav .lang { width: auto; margin-top: 6px; }
  .nav-toggle { display: inline-grid; place-items: center; margin-left: 0; }
  .header-cta { margin-left: auto; white-space: nowrap; }
}
@media (max-width: 760px) {
  .site-header .wrap { gap: 10px; }
  .site-nav { background: var(--paper); border-bottom-color: var(--border); box-shadow: 0 20px 40px rgba(23, 33, 29, .12); }
  .header-cta { margin-left: auto; }
  .nav-toggle { margin-left: 0; }
  .hero { padding-top: 48px; overflow: hidden; }
  .hero-visual::before { left: 4%; width: 92%; }
  .hero-visual::after { right: 0; }
  .browser { transform: none; }
  .oss-hero h1 { font-size: clamp(1.9rem, 8vw, 2.6rem); }
  .float-citations { display: none; }
  .float-mascot { top: -14px; right: 2px; }
  .section { padding-top: 60px; }
  .section.alt { margin-top: 38px; padding-top: 50px; }
  .security { margin-top: 38px; padding-top: 50px; }
  .facts b { font-size: 1.35rem; }
  .format-callout { flex-direction: column; align-items: flex-start; }
  .format-note { flex-direction: column; gap: 6px; }
  .oss-result { margin-left: 0; }
  .oss-toolbar select { min-width: 0; width: 100%; }
  .oss-toolbar label { flex: 1 1 100%; }
  .oss-table { min-width: 0; width: 100%; }
  .oss-table th:nth-child(2), .oss-table td:nth-child(2) { display: none; }
  .oss-table td:first-child, .oss-table td:nth-child(3) { min-width: 0; }
  .oss-table th, .oss-table td { padding: 10px 8px; font-size: .8rem; }
  .oss-license { font-size: .68rem; }
  .doc-card span:first-child { font-size: .86rem; }
}

/* ==========================================================================
   Benefit-first landing — problem, benefits, scroll story, start, support
   ========================================================================== */
.hero { overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: .62; }
.hero > .wrap { position: relative; z-index: 1; }
@media (prefers-reduced-motion: reduce) { .hero-canvas { display: none; } }

/* Overview video */
.video-section { padding-top: 30px; }
.video-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 38px; align-items: center; }
.video-copy h2 { margin: 0 0 12px; font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.8rem, 3vw, 2.55rem); line-height: 1.28; letter-spacing: -.04em; color: var(--ink); }
.video-copy p { margin: 0 0 14px; color: var(--muted); font-size: .94rem; }
.overview-video { margin: 0; padding: 10px; border: 1px solid var(--border); border-radius: 18px; background: var(--cream); box-shadow: 0 24px 60px rgba(23, 33, 29, .08); }
.overview-video video { display: block; width: 100%; border-radius: 10px; background: var(--paper); }
.overview-video figcaption { padding: 10px 6px 2px; color: var(--muted); font-size: .78rem; }
@media (max-width: 980px) { .video-grid { grid-template-columns: 1fr; } }

/* Problem */
.pain-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.pain-card { padding: 24px; border-top: 2px solid var(--forest); border-radius: 0 0 14px 14px; background: rgba(255, 253, 248, .55); }
.pain-num { display: block; margin-bottom: 16px; color: var(--terracotta); font-size: .7rem; font-weight: 800; letter-spacing: .16em; }
.pain-card h3 { margin: 0 0 8px; font-size: 1.04rem; line-height: 1.45; }
.pain-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.pain-bridge { margin: 28px 0 0; padding: 18px 0 0; border-top: 1px solid var(--border); color: var(--ink-soft); font-family: var(--font-serif); font-size: clamp(1.15rem, 2vw, 1.45rem); line-height: 1.5; }
.pain-bridge strong { color: var(--forest); font-weight: 400; }

/* Benefits */
.benefit-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.benefit-card { padding: 26px; border: 1px solid var(--border); border-radius: 16px; background: rgba(255, 253, 248, .66); }
.benefit-label { display: inline-block; margin-bottom: 14px; color: var(--terracotta); font-size: .7rem; font-weight: 800; letter-spacing: .12em; }
.benefit-card h3 { margin: 0 0 8px; font-size: 1.1rem; line-height: 1.45; }
.benefit-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.benefit-shift { display: inline-block; margin-top: 18px; padding-top: 12px; border-top: 1px solid var(--border); color: var(--forest); font-size: .78rem; font-weight: 700; }

/* Scroll story */
.how-section { border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(255, 253, 248, .5), transparent 60%); }
.how-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.how-steps { display: grid; gap: 0; }
.how-step { padding: 22px 0 22px 28px; border-left: 1px solid var(--border); opacity: .42; transition: opacity .25s ease; }
.how-step:first-child { padding-top: 0; }
.how-step:last-child { padding-bottom: 0; }
.how-step.is-active { opacity: 1; }
.how-num { display: inline-block; margin-bottom: 8px; color: var(--gold); font-size: .7rem; font-weight: 800; letter-spacing: .14em; }
.how-step h3 { margin: 0 0 6px; font-size: 1.12rem; }
.how-step p { margin: 0; color: var(--muted); font-size: .9rem; }
.how-stage { position: sticky; top: 100px; min-height: 480px; padding: 18px; border: 1px solid var(--border); border-radius: 20px; background: rgba(255, 253, 248, .72); box-shadow: 0 24px 60px rgba(23, 33, 29, .08); }
.how-slide { position: absolute; inset: 18px; opacity: 0; transform: translateY(12px); transition: opacity .3s ease, transform .3s ease; pointer-events: none; }
.how-slide.is-active { opacity: 1; transform: none; pointer-events: auto; }
.how-progress { position: absolute; left: -1px; top: 18px; bottom: 18px; width: 2px; background: var(--border); }
.how-progress span { display: block; width: 100%; height: 25%; background: var(--forest); transition: height .3s ease; }

/* Mock chat */
.mock-chat { display: flex; flex-direction: column; gap: 12px; height: 100%; padding: 16px; border: 1px solid var(--border); border-radius: 14px; background: var(--cream); }
.mock-chat-head { display: flex; align-items: center; gap: 8px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.mock-avatar { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--forest); color: var(--cream); font-size: .7rem; font-weight: 800; }
.mock-chat-head strong { font-size: .9rem; }
.mock-status { margin-left: auto; color: var(--muted-2); font-size: .7rem; }
.mock-bubble.user { align-self: flex-end; max-width: 82%; padding: 10px 14px; border-radius: 12px 12px 3px 12px; background: var(--forest); color: var(--cream); font-size: .88rem; }
.mock-typing { display: flex; gap: 4px; padding: 8px 0; }
.mock-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); animation: mockBlink 1.2s infinite; }
.mock-typing span:nth-child(2) { animation-delay: .15s; }
.mock-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes mockBlink { 0%, 80%, 100% { opacity: .3; } 40% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .mock-typing span { animation: none; } }
.mock-composer { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fbf8f1; color: var(--muted-2); font-size: .76rem; }
.mock-composer span { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--forest); color: var(--cream); font-size: .7rem; }
.mock-search { padding: 12px; border: 1px solid var(--border); border-radius: 12px; background: #fbf8f1; }
.mock-search-title { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--ink); font-size: .8rem; font-weight: 700; }
.mock-pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.mock-doc { display: flex; align-items: center; gap: 9px; padding: 8px 0; border-top: 1px solid var(--border); }
.mock-doc-type { flex: 0 0 auto; padding: 3px 5px; border-radius: 4px; background: rgba(15, 91, 78, .08); color: var(--forest); font-family: var(--mono); font-size: .58rem; font-weight: 700; }
.mock-doc div { display: grid; min-width: 0; gap: 1px; }
.mock-doc strong { overflow: hidden; color: var(--ink); font-size: .8rem; text-overflow: ellipsis; white-space: nowrap; }
.mock-doc small { color: var(--muted-2); font-size: .68rem; }
.mock-doc em { margin-left: auto; color: var(--forest); font-size: .7rem; font-style: normal; }
.mock-answer { padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: #fbf8f1; }
.mock-answer p { margin: 0 0 10px; color: var(--ink); font-size: .86rem; line-height: 1.6; }
.mock-citations { display: flex; flex-wrap: wrap; gap: 5px; align-items: center; }
.mock-citations span { padding: 3px 7px; border-radius: 999px; background: rgba(15, 91, 78, .08); color: var(--forest); font-size: .68rem; font-weight: 700; }
.mock-citations i { padding: 3px 7px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: .66rem; font-style: normal; }
.mock-audit { display: grid; gap: 0; padding: 4px 0; }
.mock-audit div { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--border); }
.mock-audit div:last-child { border-bottom: 0; }
.mock-audit span { color: var(--muted); font-size: .78rem; }
.mock-audit strong { color: var(--ink); font-size: .78rem; text-align: right; }

/* Security concerns */
.security-concerns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 22px; }
.concern-card { padding: 22px; border: 1px solid var(--border); border-radius: 14px; background: rgba(255, 253, 248, .62); }
.concern-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 12px; border-radius: 10px; background: rgba(15, 91, 78, .08); color: var(--forest); }
.concern-card h3 { margin: 0 0 7px; font-size: 1.02rem; }
.concern-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.security-panel-wide { padding: 24px; border-radius: 16px; }
.security-panel-head { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 18px; }
.security-panel-head h3 { margin: 0 0 6px; font-size: 1.2rem; }
.security-panel-head p { max-width: 640px; margin: 0; color: var(--muted); font-size: .9rem; }
.security-pipe { display: flex; flex-wrap: wrap; gap: 6px; }
.security-pipe span { padding: 5px 9px; border: 1px solid rgba(15, 91, 78, .25); border-radius: 999px; background: rgba(15, 91, 78, .06); color: var(--forest); font-size: .7rem; }
.security-pipe span:not(:last-child)::after { content: " →"; color: var(--muted-2); }
.security-panel-wide .sec-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.security-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

/* Start one-liner */
.oneline-block { margin: 0 0 24px; }
.oneline-block pre { padding: 16px; }
.oneline-block pre code { white-space: pre; }

/* Support */
.support-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.support-card { padding: 22px; border: 1px solid var(--border); border-radius: 14px; background: rgba(255, 253, 248, .6); }
.support-card span { display: block; margin-bottom: 10px; color: var(--terracotta); font-size: .7rem; font-weight: 800; letter-spacing: .12em; }
.support-card h3 { margin: 0 0 6px; font-size: 1rem; }
.support-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.support-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.support-fab { position: fixed; right: 22px; bottom: 22px; z-index: 70; display: inline-flex; align-items: center; gap: 8px; padding: 11px 16px; border-radius: 999px; background: var(--forest); color: #fffdf7; font-size: .82rem; font-weight: 700; text-decoration: none; box-shadow: 0 14px 30px rgba(15, 91, 78, .24); }
.support-fab:hover { background: var(--forest-2); color: #fffdf7; transform: translateY(-1px); }
.support-fab svg { width: 17px; height: 17px; }

@media (max-width: 1020px) {
  .how-grid { grid-template-columns: 1fr; gap: 24px; }
  .how-stage { position: sticky; top: 76px; min-height: 340px; order: -1; }
  .security-concerns { grid-template-columns: 1fr; }
  .security-panel-head { flex-direction: column; }
  .security-panel-wide .sec-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .pain-grid, .benefit-grid, .support-grid { grid-template-columns: 1fr; }
  .how-stage { min-height: 300px; }
  .mock-chat { padding: 12px; }
  .mock-audit div { padding: 9px 0; }
  .oneline-block pre { font-size: .75rem; }
  .support-fab { right: 14px; bottom: 14px; padding: 10px 13px; font-size: .76rem; }
}