:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --bg-2: #edf2f9;
  --surface: rgba(255,255,255,0.88);
  --surface-strong: #ffffff;
  --surface-soft: #f5f8fc;
  --text: #0f172a;
  --muted: #475569;
  --muted-strong: #334155;
  --border: rgba(15,23,42,0.10);
  --border-strong: rgba(15,23,42,0.16);
  --accent: #0ea5e9;
  --accent-strong: #0369a1;
  --accent-soft: rgba(14,165,233,0.14);
  --success: #15803d;
  --success-soft: rgba(21,128,61,0.14);
  --warning: #b45309;
  --warning-soft: rgba(180,83,9,0.16);
  --violet: #8b5cf6;
  --violet-soft: rgba(124,58,237,0.14);
  --operator: #f97316;
  --operator-soft: rgba(234,88,12,0.14);
  --shadow: 0 24px 60px rgba(15,23,42,0.10);
  --shadow-sm: 0 10px 28px rgba(15,23,42,0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --max-width: 1160px;
  --content-width: 880px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #08101d;
    --bg-2: #0b1425;
    --surface: rgba(10,19,35,0.88);
    --surface-strong: #0f172a;
    --surface-soft: #101b31;
    --text: #e6eefb;
    --muted: #94a3b8;
    --muted-strong: #c4d1e5;
    --border: rgba(226,232,240,0.10);
    --border-strong: rgba(226,232,240,0.18);
    --accent: #38bdf8;
    --accent-strong: #7dd3fc;
    --accent-soft: rgba(56,189,248,0.20);
    --success: #86efac;
    --success-soft: rgba(74,222,128,0.14);
    --warning: #fbbf24;
    --warning-soft: rgba(251,191,36,0.16);
    --violet: #c4b5fd;
    --violet-soft: rgba(167,139,250,0.16);
    --operator: #fb923c;
    --operator-soft: rgba(251,146,60,0.18);
    --shadow: 0 24px 60px rgba(0,0,0,0.40);
    --shadow-sm: 0 10px 28px rgba(0,0,0,0.30);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(124,58,237,0.12), transparent 26%),
    radial-gradient(circle at 20% 80%, rgba(234,88,12,0.08), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent-strong); text-decoration-thickness: 0.08em; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 0.12em; }
p, ul, ol, dl { margin: 0 0 1rem; }
strong { font-weight: 800; }
code { font: 700 0.95em ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
.skip-link { position: absolute; left: 1rem; top: -4rem; background: var(--text); color: #fff; padding: 0.75rem 1rem; border-radius: 999px; z-index: 1000; text-decoration: none; }
.skip-link:focus { top: 1rem; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid rgba(37,99,235,0.45); outline-offset: 3px; border-radius: 10px; }
.site-header { position: sticky; top: 0; z-index: 40; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); background: rgba(245,247,251,0.84); border-bottom: 1px solid var(--border); }
@media (prefers-color-scheme: dark) { .site-header { background: rgba(8,16,29,0.82); } }
.site-header__inner, .container { width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.95rem 0; }
.brand { display: inline-flex; gap: 0.9rem; align-items: center; color: inherit; text-decoration: none; min-width: 0; }
.brand__icon { width: 54px; height: 54px; border-radius: 16px; box-shadow: var(--shadow-sm); flex: 0 0 auto; }
.brand__text { display: grid; gap: 0.08rem; min-width: 0; }
.brand__eyebrow { font-size: 0.75rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.brand__title { font-size: 1.06rem; font-weight: 800; line-height: 1.1; }
.brand__subtitle { font-size: 0.82rem; color: var(--muted); }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.42rem; margin: 0; padding: 0; }
.site-nav a { display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0.58rem 0.92rem; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 700; }
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-strong); }
main { padding-bottom: 3.6rem; }
.hero { padding: 3.1rem 0 2rem; }
.hero__panel, .section__panel { position: relative; overflow: hidden; background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.86)); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: clamp(1.35rem, 2vw, 2rem); box-shadow: var(--shadow); }
.section__panel { box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .hero__panel, .section__panel { background: linear-gradient(180deg, rgba(15,23,42,0.96), rgba(15,23,42,0.88)); } }
.hero__panel::after { content: ""; position: absolute; right: -8rem; bottom: -10rem; width: 26rem; height: 26rem; background: radial-gradient(circle, rgba(37,99,235,0.16) 0%, transparent 68%); pointer-events: none; }
.hero__grid { position: relative; display: grid; gap: 1.4rem; grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr); align-items: center; }
.hero__eyebrow, .badge, .eyebrow-link { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.42rem 0.78rem; border-radius: 999px; background: var(--surface-soft); border: 1px solid var(--border); color: var(--muted); font-size: 0.88rem; font-weight: 800; }
.hero h1 { margin: 0.95rem 0 0.85rem; max-width: 18ch; font-size: clamp(2.05rem, 5vw, 4.15rem); line-height: 1.02; letter-spacing: -0.04em; }
.article-prose h1 { max-width: 24ch; }
.hero p { margin: 0; max-width: 42rem; font-size: clamp(1rem, 2vw, 1.16rem); color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.button-link { display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem; min-height: 3rem; padding: 0.84rem 1.12rem; border-radius: 999px; text-decoration: none; font-weight: 800; box-shadow: var(--shadow-sm); }
.button-link--primary { background: linear-gradient(180deg, rgba(37,99,235,0.95), rgba(29,78,216,0.98)); color: #fff; }
.button-link--secondary { background: var(--surface-strong); color: var(--text); border: 1px solid var(--border); }
.button-link--tertiary { background: var(--accent-soft); color: var(--accent-strong); }
.chips { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1.05rem; }
.chip { display: inline-flex; align-items: center; padding: 0.4rem 0.72rem; border-radius: 999px; font-weight: 800; font-size: 0.86rem; }
.chip--success { background: var(--success-soft); color: var(--success); }
.chip--accent { background: var(--accent-soft); color: var(--accent-strong); }
.chip--warning { background: var(--warning-soft); color: var(--warning); }
.chip--violet { background: var(--violet-soft); color: var(--violet); }
.chip--operator { background: var(--operator-soft); color: var(--operator); }
.showcase { display: grid; gap: 0.9rem; }
.showcase-window { background: linear-gradient(180deg, rgba(239,244,255,0.9), rgba(255,255,255,0.88)); border: 1px solid var(--border); border-radius: 28px; padding: 1rem; box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .showcase-window { background: linear-gradient(180deg, rgba(17,28,50,0.96), rgba(12,19,34,0.92)); } }
.showcase-toolbar { display: flex; gap: 0.45rem; margin-bottom: 0.85rem; }
.showcase-toolbar span { display: inline-block; width: 0.72rem; height: 0.72rem; border-radius: 50%; background: rgba(148,163,184,0.45); }
.showcase-screen { display: grid; gap: 0.85rem; }
.showcase-heading { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.showcase-mode { padding: 0.38rem 0.72rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); font-size: 0.82rem; font-weight: 800; }
.showcase-expression { font-size: 1rem; font-weight: 700; color: var(--muted-strong); word-break: break-word; }
.showcase-result { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.03em; }
.showcase-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.showcase-mini, .metric { padding: 0.85rem; border-radius: 18px; border: 1px solid var(--border); background: rgba(255,255,255,0.72); }
@media (prefers-color-scheme: dark) { .showcase-mini, .metric { background: rgba(8,16,29,0.72); } }
.showcase-mini strong, .metric strong { display: block; margin-bottom: 0.22rem; }
.showcase-mini span, .metric span { color: var(--muted); font-size: 0.9rem; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; }
.metric strong { font-size: 1.1rem; }
.section { margin-top: 1.25rem; }
.section__header { max-width: 52rem; margin-bottom: 1.15rem; }
.section h2 { margin: 0 0 0.5rem; font-size: clamp(1.4rem, 2.2vw, 2rem); letter-spacing: -0.03em; }
.section .lead { margin: 0; color: var(--muted); }
.cards, .feature-grid, .policy-grid, .link-grid, .stats-grid, .contact-grid, .faq-grid, .quick-grid, .timeline-grid, .detail-grid { display: grid; gap: 1rem; }
.cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature-grid, .contact-grid, .faq-grid, .quick-grid, .timeline-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.policy-grid, .link-grid, .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.detail-grid { grid-template-columns: 1.15fr 0.85fr; align-items: start; }
.card, .feature-card, .policy-card, .link-card, .contact-card, .faq-card, .quick-card, .timeline-card, .stat-card { padding: 1.05rem 1.08rem; border-radius: var(--radius-lg); border: 1px solid var(--border); background: rgba(255,255,255,0.72); box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .card, .feature-card, .policy-card, .link-card, .contact-card, .faq-card, .quick-card, .timeline-card, .stat-card { background: rgba(11,20,37,0.72); } }
.card h2, .contact-card h2 { margin-top: 0; font-size: 1.25rem; }
.card h3, .feature-card h3, .policy-card h3, .link-card h3, .contact-card h3, .faq-card h3, .quick-card h3, .timeline-card h3, .stat-card h3 { margin: 0 0 0.45rem; font-size: 1.04rem; }
.card p:last-child, .feature-card p:last-child, .policy-card p:last-child, .quick-card p:last-child, .timeline-card p:last-child, .link-card p:last-child, .contact-card p:last-child { margin-bottom: 0; }
.feature-card ul, .policy-card ul, .quick-card ul, .list-clean, .faq-card ul, .contact-card ul { padding-left: 1.2rem; margin-bottom: 0; }
.card--accent, .callout--accent { border-color: rgba(37,99,235,0.24); background: rgba(37,99,235,0.08); }
.card--success, .callout--success { border-color: rgba(21,128,61,0.24); background: rgba(21,128,61,0.08); }
.card--warning, .callout--warning { border-color: rgba(180,83,9,0.25); background: rgba(180,83,9,0.10); }
.card--violet { border-color: rgba(124,58,237,0.24); background: rgba(124,58,237,0.08); }
.callout { padding: 1rem 1.08rem; border-radius: 18px; border: 1px solid var(--border); margin-top: 1rem; }
.callout p:last-child { margin-bottom: 0; }
.tag-list, .module-pills { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.module-pill { display: inline-flex; align-items: center; padding: 0.45rem 0.72rem; border-radius: 999px; background: var(--surface-soft); border: 1px solid var(--border); font-weight: 800; font-size: 0.9rem; }
.kicker { display: inline-flex; align-items: center; padding: 0.4rem 0.72rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); font-weight: 800; font-size: 0.84rem; }
.definition-list { display: grid; grid-template-columns: minmax(0, 180px) minmax(0, 1fr); gap: 0.55rem 1rem; margin: 0; }
.definition-list dt { font-weight: 800; color: var(--muted-strong); }
.definition-list dd { margin: 0; }
.support-template { margin: 1rem 0 0; padding: 1rem 1.08rem; border-radius: var(--radius-lg); border: 1px solid var(--border); background: rgba(255,255,255,0.72); box-shadow: var(--shadow-sm); color: var(--text); font: 600 0.90rem/1.6 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
@media (prefers-color-scheme: dark) { .support-template { background: rgba(11,20,37,0.72); } }
.small-note, .muted { color: var(--muted); }
.link-card { text-decoration: none; color: inherit; }
.link-card:hover { transform: translateY(-1px); }
.link-card__eyebrow { margin-bottom: 0.25rem; display: inline-flex; align-items: center; color: var(--muted); font-size: 0.78rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; }
.hero-note { margin-top: 0.75rem !important; color: var(--muted); }
footer { padding-bottom: 2rem; }
.footer-panel { display: flex; justify-content: space-between; gap: 1rem; padding: 1.1rem 1.2rem; border-radius: 22px; border: 1px solid var(--border); background: rgba(255,255,255,0.8); box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .footer-panel { background: rgba(15,23,42,0.84); } }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; align-items: flex-start; max-width: 560px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.legal-credit { width: min(var(--max-width), calc(100% - 2rem)); margin: 0.8rem auto 0; color: var(--muted); font-size: 0.82rem; }
hr.rule { border: 0; border-top: 1px solid var(--border); margin: 1.2rem 0; }
.tableless { display: grid; gap: 0.85rem; }
.tableless-row { display: grid; gap: 0.3rem; padding: 0.95rem 1rem; border-radius: 18px; border: 1px solid var(--border); background: rgba(255,255,255,0.68); }
@media (prefers-color-scheme: dark) { .tableless-row { background: rgba(11,20,37,0.68); } }
.tableless-row strong { font-size: 0.98rem; }
.tableless-row span { color: var(--muted); }
.notice { padding: 0.95rem 1rem; border-left: 4px solid var(--warning); background: var(--warning-soft); border-radius: 0 16px 16px 0; }
.notice p:last-child { margin-bottom: 0; }
.article-prose { max-width: var(--content-width); }
.article-prose h2 { margin-top: 1.4rem; }
.article-prose h3 { margin-top: 1rem; margin-bottom: 0.45rem; }
.article-prose ul, .article-prose ol { padding-left: 1.2rem; }
.article-prose li + li { margin-top: 0.3rem; }
.stat-strip { display: grid; gap: 0.8rem; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 1.2rem; }
.stat-strip .stat { padding: 1rem; border-radius: 18px; border: 1px solid var(--border); background: rgba(255,255,255,0.72); box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .stat-strip .stat { background: rgba(11,20,37,0.72); } }
.stat .label { display: block; color: var(--muted); font-size: 0.84rem; font-weight: 700; }
.stat .value { display: block; margin-top: 0.2rem; font-size: 1.28rem; font-weight: 900; letter-spacing: -0.03em; }
.anchor-grid { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1rem; }
.anchor-grid a { display: inline-flex; align-items: center; min-height: 2.5rem; padding: 0.55rem 0.9rem; border-radius: 999px; background: var(--surface-soft); border: 1px solid var(--border); text-decoration: none; color: var(--text); font-weight: 700; }
@media (max-width: 1024px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } .policy-grid, .link-grid, .stats-grid, .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) { .site-header__inner { flex-direction: column; align-items: stretch; } .site-nav ul { justify-content: flex-start; } .hero__grid, .detail-grid { grid-template-columns: 1fr; } .metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); } .hero h1 { max-width: none; } }
@media (max-width: 720px) { .site-header__inner, .container { width: min(100% - 1rem, var(--max-width)); } .cards, .feature-grid, .policy-grid, .link-grid, .stats-grid, .contact-grid, .faq-grid, .quick-grid, .timeline-grid, .stat-strip { grid-template-columns: 1fr; } .showcase-grid, .metrics { grid-template-columns: 1fr; } .definition-list { grid-template-columns: 1fr; } .footer-panel { flex-direction: column; } .site-nav a { padding-inline: 0.78rem; } .hero { padding-top: 1.6rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }


/* v187 Project Milepost public-site additions */
.milepost-mark, .app-mark {
  display: inline-grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(14,165,233,0.96), rgba(139,92,246,0.92));
  color: #fff;
  box-shadow: var(--shadow-sm);
  font-weight: 1000;
}
.milepost-mark { width: 54px; height: 54px; }
.app-mark { width: 74px; height: 74px; border-radius: 22px; overflow: hidden; }
.app-mark img { width: 100%; height: 100%; object-fit: cover; }
.timeline-preview { display: grid; gap: 0.8rem; padding: 1rem; border: 1px solid var(--border); border-radius: 28px; background: linear-gradient(180deg, rgba(240,249,255,0.92), rgba(255,255,255,0.84)); box-shadow: var(--shadow-sm); }
@media (prefers-color-scheme: dark) { .timeline-preview { background: linear-gradient(180deg, rgba(14,31,51,0.96), rgba(12,19,34,0.92)); } }
.timeline-axis { position: relative; height: 0.25rem; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--violet), var(--operator)); margin: 1.35rem 0; }
.timeline-axis::before, .timeline-axis::after { content: ''; position: absolute; top: 50%; width: 0.9rem; height: 0.9rem; border-radius: 999px; transform: translateY(-50%); background: var(--surface-strong); border: 3px solid var(--accent); box-shadow: var(--shadow-sm); }
.timeline-axis::before { left: 9%; }
.timeline-axis::after { right: 12%; border-color: var(--operator); }
.milestone-row { display: grid; grid-template-columns: auto 1fr auto; gap: 0.7rem; align-items: center; padding: 0.8rem; border-radius: 18px; background: rgba(255,255,255,0.68); border: 1px solid var(--border); }
@media (prefers-color-scheme: dark) { .milestone-row { background: rgba(8,16,29,0.68); } }
.milestone-date { font-weight: 900; color: var(--accent-strong); }
.milestone-title { font-weight: 800; }
.milestone-count { color: var(--success); font-weight: 900; }
.page-kicker { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem; font-weight: 900; color: var(--muted); }
.url-table { width: 100%; border-collapse: collapse; }
.url-table th, .url-table td { text-align: left; padding: 0.75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.url-table th { color: var(--muted-strong); }
@media (max-width: 720px) { .url-table, .url-table tbody, .url-table tr, .url-table th, .url-table td { display: block; width: 100%; } .url-table th { padding-bottom: 0.25rem; } .url-table td { padding-top: 0; } }