/* Segmara UI foundations, 2026-09-01.
   Final cascade layer: responsive geometry first, decoration second. */
:root {
  --sg-ui-max: 72rem;
  --sg-ui-reading: 68ch;
  --sg-ui-gutter: clamp(1rem, 0.75rem + 1.5vw, 1.5rem);
  --sg-ui-section: clamp(40px, 6vw, 72px);
  --sg-ui-gap: clamp(14px, 2vw, 24px);
  --sg-ui-control: 44px;
  --sg-ui-radius: 14px;
  --sg-ui-paper: #f4f6f4;
  --sg-ui-surface: #fbfcfb;
  --sg-ui-ink: #121815;
  --sg-ui-muted: #5c665f;
  --sg-ui-line: #d5ddd6;
  --sg-ui-accent: #1a6b3c;
  --sg-ui-accent-soft: #e7f3eb;
}

html {
  max-width: 100%;
  overflow-x: clip;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  max-width: 100%;
  overflow-x: clip;
}
img, svg, video, canvas { height: auto; max-width: 100%; }
main, main > *, section, article, aside, form, fieldset, .grid, .table-wrap {
  min-width: 0;
}
button, input, select, textarea { font: inherit; }
button, .btn, input[type="submit"] { min-height: var(--sg-ui-control); }
:where(.top, nav, .footer-links, header.site, body > header.top, header) a {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-height: var(--sg-ui-control);
  min-width: var(--sg-ui-control);
}
footer.site-footer > a {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-height: var(--sg-ui-control);
  min-width: var(--sg-ui-control);
}
:where(a, button, input, select, textarea, summary):focus-visible,
body.book-home :is(.btn, a, button, input, select, textarea, summary):focus-visible {
  box-shadow: 0 0 0 2px var(--sg-ui-paper);
  outline: 2px solid var(--sg-ui-accent);
  outline-offset: 2px;
}
:where(.brand, .ed-brand, .wm) {
  font-family: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -.03em;
  text-transform: lowercase;
}

/* Shared shell: one width, one gutter, no half-width tablet canvas. */
.book-main,
.auth-main {
  box-sizing: border-box;
  max-width: 74rem;
  padding-inline: var(--sg-ui-gutter);
  width: 100%;
}
body.book-home .home-top {
  margin-inline: calc(-1 * var(--sg-ui-gutter));
  padding-inline: var(--sg-ui-gutter);
}
body.book-home .v2-logo-strip {
  margin-inline: calc(-1 * var(--sg-ui-gutter));
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}
body.book-home .v2-logo-track {
  animation: none;
  transform: none;
}
body.book-home .v2-logo-item:nth-child(n + 11) {
  display: none;
}
.book-main > *,
.auth-main > *,
.auth-shell > *,
.book-hero > *,
.market-hero > * { min-width: 0; }
body.book-home .book-hero,
body.book-home .market-hero {
  box-sizing: border-box;
  margin-inline: 0;
  max-width: none;
  width: 100%;
}
body.book-home .section-head {
  align-items: end;
  text-align: left;
}
body.book-home .section-head > * { min-width: 0; }
body.book-home .listing-list {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)) !important;
}
body.book-home .listing-card,
body.book-home .listing-list > article.company-listing {
  min-width: 0;
  overflow: hidden;
}
.company-icon.logo:has(> img[hidden]) { display: none; }
body.book-home .listing-price,
body.book-home .listing-card .listing-price,
body.book-home .company-listing .listing-price {
  max-width: 100%;
  overflow-wrap: anywhere;
  white-space: normal !important;
}
body.book-home .listing-data-link {
  align-items: center;
  display: inline-flex;
  min-height: var(--sg-ui-control);
  padding-block: 8px;
}
body.book-home .review-process,
body.book-home .tracker-product,
body.book-home .book-section {
  margin-block: var(--sg-ui-section);
}
.review-process dl {
  background: var(--sg-ui-surface);
  border: 1px solid var(--sg-ui-line);
  border-radius: var(--sg-ui-radius);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  overflow: hidden;
}
.review-process dl > div {
  border-top: 0;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  padding: var(--sg-ui-gap);
}
.review-process dl > div + div { border-left: 1px solid var(--sg-ui-line); }
body.book-home .review-process dl > div {
  grid-template-columns: minmax(0, 1fr);
  padding: var(--sg-ui-gap);
}
body.book-home .review-process dl > div + div {
  border-left: 1px solid var(--sg-ui-line);
  border-top: 0;
}
@media (min-width: 761px) {
  body.book-home .review-process dl > div {
    align-content: start;
    gap: 0.5rem;
  }
}
.review-process dt { font-weight: 700; margin: 0; }
.review-process dd { color: var(--sg-ui-muted); margin: 0; }
body.book-home .tracker-product { padding: clamp(24px, 4vw, 48px); }
body.book-home .tracker-product form,
body.book-home .tracker-product form > label,
body.book-home .tracker-product button[type="submit"] {
  max-width: 36rem;
  width: 100%;
}
body.book-home .site-footer { gap: 8px 20px; }
body.book-home .footer-links { gap: 0 14px; }
body.book-home .footer-links a {
  justify-content: center;
  min-height: var(--sg-ui-control);
  min-width: var(--sg-ui-control);
}
body.book-home .subnav a {
  justify-content: center;
  min-width: var(--sg-ui-control);
}

/* Auth: zero-floor grid tracks and an Identity button that fits 320px. */
.auth-shell { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.auth-copy,
.auth-card,
.auth-methods,
.auth-methods > *,
.auth-alt,
.google-identity-wrap {
  max-width: 100%;
  min-width: 0;
}
.auth-card { padding: clamp(20px, 4vw, 34px); }
.google-identity-wrap {
  align-items: center;
  display: flex;
  justify-content: center;
  min-height: var(--sg-ui-control);
  overflow: visible;
  width: 100%;
}
.google-identity-wrap > div,
.google-identity-wrap iframe {
  max-width: 100% !important;
  width: 100% !important;
}

/* Editorial/topic pages: one content rail and a compact horizontal nav. */
body > main:not(.book-main):not(.auth-main):not(.wrap) {
  box-sizing: border-box;
  margin-inline: auto;
  max-width: var(--sg-ui-max);
  padding-inline: var(--sg-ui-gutter);
  width: 100%;
}
body > main:not(.book-main):not(.auth-main):not(.wrap) > nav:first-child {
  border-bottom: 1px solid var(--sg-ui-line);
  gap: 4px 18px;
  margin-bottom: clamp(28px, 4vw, 44px);
  padding-bottom: 10px;
}
body > main:not(.book-main):not(.auth-main):not(.wrap) > nav:first-child a {
  min-height: var(--sg-ui-control);
  padding-inline: 4px;
}
body > main:not(.book-main):not(.auth-main):not(.wrap) > header > h1,
body > main:not(.book-main):not(.auth-main):not(.wrap) > h1 {
  font-size: clamp(2.25rem, 1.6rem + 3.2vw, 4.75rem);
  letter-spacing: -.035em;
  line-height: 1.02;
  max-width: 18ch;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: normal;
}
body > main:not(.book-main):not(.auth-main):not(.wrap) > header .lede,
body > main:not(.book-main):not(.auth-main):not(.wrap) > .lede {
  max-width: var(--sg-ui-reading);
}
body > main:not(.book-main):not(.auth-main):not(.wrap) > section {
  margin-block: var(--sg-ui-section);
}
body > main:not(.book-main):not(.auth-main):not(.wrap) .grid {
  gap: var(--sg-ui-gap);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}
:where(.faq-card, .topic-card, .term-card, .qa-card, .analysis-card, .visual-card, .data-card) {
  border-radius: var(--sg-ui-radius);
  min-width: 0;
  padding: clamp(18px, 2.4vw, 26px);
}
:where(.faq-card, .topic-card, .term-card) > a:last-child,
:where(.faq-card, .topic-card, .term-card) h2 a {
  align-items: center;
  display: inline-flex;
  min-height: var(--sg-ui-control);
}
.answer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sg-ui-gap);
}
.answer-meta > span {
  align-items: baseline;
  display: inline-flex;
  gap: 0.5rem;
}
.answer-meta dfn {
  color: var(--sg-ui-muted);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

/* Data views: all columns remain inside the viewport on phones. */
.table-wrap {
  border-radius: 10px;
  max-width: 100%;
  overflow-x: auto !important;
  overscroll-behavior-inline: contain;
  scrollbar-color: var(--sg-ui-line) transparent;
  scrollbar-width: thin;
  width: 100%;
}
.table-wrap > table { margin-top: 0; max-width: 100%; }
.risk-track > span,
.stage-track > span,
.scrape-track > span { line-height: 0; }
@media (max-width: 640px) {
  body > main:not(.book-main):not(.auth-main):not(.wrap) .data-table th,
  body > main:not(.book-main):not(.auth-main):not(.wrap) .data-table td {
    font-size: 12px;
    line-height: 1.4;
    overflow-wrap: normal;
    padding: 9px 7px;
    word-break: normal;
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) .ai-fact-table th {
    min-width: 0 !important;
  }
}

/* IPO Watch / Pre-IPO Index: convert wide datasets to labeled cards. */
body:has(> header.site) > header.site {
  padding-inline: max(var(--sg-ui-gutter), calc((100vw - var(--sg-ui-max)) / 2 + var(--sg-ui-gutter)));
}
body:has(> header.site) > main { max-width: var(--sg-ui-max); }
body:has(> header.site) > footer.site-footer {
  padding-inline: max(var(--sg-ui-gutter), calc((100vw - var(--sg-ui-max)) / 2 + var(--sg-ui-gutter)));
}
body:has(> header.site) td.act a {
  align-items: center;
  display: inline-flex;
  min-height: var(--sg-ui-control);
  padding-inline: 10px;
}
@media (max-width: 720px) {
  body:has(> header.site) .table-wrap { border: 0; overflow: visible !important; }
  body:has(> header.site) .table-wrap table,
  body:has(> header.site) .table-wrap tbody {
    display: block;
    min-width: 0 !important;
    width: 100% !important;
  }
  body:has(> header.site) .table-wrap thead {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }
  body:has(> header.site) .table-wrap tr {
    background: var(--sg-ui-surface);
    border: 1px solid var(--sg-ui-line);
    border-radius: var(--sg-ui-radius);
    display: grid;
    gap: 0 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 12px;
    overflow: hidden;
    padding: 12px;
  }
  body:has(> header.site) .table-wrap tr.sec {
    background: var(--sg-ui-ink);
    border-color: var(--sg-ui-ink);
    display: block;
    margin: 28px 0 10px;
    padding: 0;
  }
  body:has(> header.site) .table-wrap tr.sec th {
    border: 0;
    display: block;
    padding: 12px 14px;
  }
  body:has(> header.site) .table-wrap td {
    border: 0;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow-wrap: anywhere;
    padding: 8px 4px;
    white-space: normal;
  }
  body:has(> header.site) .table-wrap td::before {
    color: var(--sg-ui-muted);
    content: attr(data-l);
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: .08em;
    line-height: 1.2;
    margin-bottom: 3px;
    text-transform: uppercase;
  }
  body:has(> header.site) .table-wrap td[data-l=""]::before { display: none; }
  body:has(> header.site) .table-wrap td.act {
    border-top: 1px solid var(--sg-ui-line);
    flex-direction: row;
    gap: 8px;
    grid-column: 1 / -1;
    margin-top: 4px;
    padding-top: 10px;
  }
  body:has(> header.site) .table-wrap td.act:empty { display: none; }
  body:has(> header.site) .table-wrap td.act a {
    background: var(--sg-ui-accent-soft);
    border-radius: 10px;
    color: var(--sg-ui-accent);
    flex: 1 1 auto;
    justify-content: center;
  }
}

/* Static legal/pricing pages: align their separate shell to the same grid. */
body > main.wrap > h1 { max-width: 24ch; }

body > header.top {
  box-sizing: border-box;
  min-height: 72px;
  padding-inline: max(var(--sg-ui-gutter), calc((100vw - var(--sg-ui-max)) / 2 + var(--sg-ui-gutter)));
}
body > header.top > .brand {
  align-items: flex-start;
  flex-direction: column;
}
body > main.wrap {
  box-sizing: border-box;
  max-width: 60rem;
  padding-inline: var(--sg-ui-gutter);
  width: 100%;
}
body > main.wrap h1 {
  font-size: clamp(2.25rem, 1.8rem + 2.4vw, 3.75rem);
  letter-spacing: -.035em;
  line-height: 1.02;
}
body > main.wrap > :where(h2, .tiers, .notice) { margin-top: clamp(32px, 5vw, 52px); }
body > footer {
  box-sizing: border-box;
  padding-inline: max(var(--sg-ui-gutter), calc((100vw - var(--sg-ui-max)) / 2 + var(--sg-ui-gutter)));
}

/* Small screens: one horizontal nav row, predictable gutters, no clipping. */
@media (max-width: 760px) {
  :root { --sg-ui-section: 42px; }
  .book-main, .auth-main { max-width: none; width: 100%; }
  .auth-shell { gap: 24px; grid-template-columns: minmax(0, 1fr); }
  body.book-home .book-hero,
  body.book-home .market-hero { max-width: none; }
  body.book-home .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  body.book-home .filter-clear { min-height: var(--sg-ui-control); }
  body.book-home .review-process,
  body.book-home .tracker-product,
  body.book-home .book-section { margin-block: var(--sg-ui-section); }
  .review-process dl { grid-template-columns: minmax(0, 1fr); }
  .review-process dl > div + div {
    border-left: 0;
    border-top: 1px solid var(--sg-ui-line);
  }
  body.book-home .review-process dl { grid-template-columns: minmax(0, 1fr); }
  body.book-home .review-process dl > div + div {
    border-left: 0;
    border-top: 1px solid var(--sg-ui-line);
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) {
    max-width: none;
    overflow: visible;
    padding-bottom: 88px;
    width: 100%;
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) > nav:first-child {
    flex-wrap: nowrap;
    gap: 4px;
    margin-bottom: 28px;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    padding-bottom: 7px;
    scrollbar-width: thin;
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) > nav:first-child a {
    flex: 0 0 auto;
    padding-inline: 9px;
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) > nav:first-child .ed-brand {
    background: var(--sg-ui-paper);
    left: 0;
    padding-left: 0;
    position: sticky;
    z-index: 2;
  }
  body > main:not(.book-main):not(.auth-main):not(.wrap) > header > h1,
  body > main:not(.book-main):not(.auth-main):not(.wrap) > h1 {
    font-size: clamp(2rem, 10vw, 2.8rem);
    line-height: 1.04;
    max-width: none;
  }
  header.site,
  body > header.top {
    align-items: start;
    display: grid;
    gap: 8px 16px;
    grid-template-columns: auto minmax(0, 1fr);
    padding-block: 12px;
    padding-inline: var(--sg-ui-gutter);
  }
  body > header.top .nav { grid-column: 1 / -1; }
  /* segmara-ui-mobile-nav-20260906: every link stays visible; a wrapped row beats a hidden scroller. */
  body:has(> header.site) > header.site { flex-wrap: wrap; row-gap: 10px; }
  header.site nav,
  body > header.top .nav {
    flex: 1 1 100%;
    flex-wrap: wrap;
    gap: 6px 14px;
    justify-content: flex-start;
    max-width: 100%;
    overflow: visible;
  }
  header.site nav a,
  body > header.top .nav a { flex: 0 0 auto; }
  body:has(> header.site) > main,
  body > main.wrap { padding-inline: var(--sg-ui-gutter); }
  body:has(> header.site) > footer.site-footer,
  body > footer { padding-inline: var(--sg-ui-gutter); }
  .ux-sound-toggle { min-height: var(--sg-ui-control) !important; padding-inline: 14px !important; }
}

@media (max-width: 340px) {
  .auth-card { padding-inline: 18px; }
  .google-identity-wrap > div {
    transform: scale(.88);
    transform-origin: center top;
    width: 113.64% !important;
  }
  .google-identity-wrap { margin-bottom: -5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}