/* ============================================================
   Techimpossible — shared site primitives
   Imported by every page. Inherits tokens + fonts loaded first
   by application.css. Build-kit's @imports removed here to avoid
   Propshaft resolving to non-existent filenames.
   ============================================================ */

/* -----------  Reset-ish  ----------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* Prevent horizontal shift when navigating between pages of different heights.
   Three layers of defence:
   1. Always show the vertical scrollbar lane (so its width never appears/disappears)
   2. Reserve the gutter explicitly via scrollbar-gutter (modern browsers)
   3. Clip any accidental horizontal overflow so a stray wide element can't
      trigger a horizontal scrollbar that would also push content sideways */
html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
  overflow-x: clip;
}
body { overflow-x: clip; }
body {
  background: var(--bg-1);
  color: var(--fg-1);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11", "liga", "calt";
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; padding: 0; color: inherit; }
img { max-width: 100%; display: block; }

/* ----------- Selection ----------- */
::selection { background: var(--ti-blue); color: #fff; }

/* ----------- Container ----------- */
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 880px; margin: 0 auto; padding: 0 32px; }
.wrap-wide { max-width: 1440px; margin: 0 auto; padding: 0 32px; }

/* ----------- Typography helpers ----------- */
.eyebrow {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.eyebrow--blue { color: var(--ti-blue); }
.eyebrow--red  { color: var(--ti-red); }

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0;
  font-feature-settings: "tnum" 1, "zero" 1;
}

/* ----------- Reusable buttons ----------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  line-height: 1;
  transition: background .18s var(--ease-standard), color .18s var(--ease-standard), box-shadow .18s var(--ease-standard), transform .12s var(--ease-standard);
  white-space: nowrap;
}
.btn--primary { background: var(--ti-blue); color: #fff; }
.btn--primary:hover { background: var(--ti-blue-600); box-shadow: var(--shadow-brand); }
.btn--primary:active { transform: translateY(1px); }
.btn--dark { background: var(--ink-950); color: #fff; }
.btn--dark:hover { background: #000; }
.btn--outline { background: transparent; color: var(--ink-900); box-shadow: inset 0 0 0 1.5px var(--ink-900); }
.btn--outline:hover { background: var(--ink-900); color: #fff; }
.btn--ghost { color: var(--fg-2); padding: 10px 14px; }
.btn--ghost:hover { color: var(--fg-1); background: var(--ink-50); }
.btn--md-download {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  background: var(--ink-50);
  color: var(--fg-2);
  padding: 7px 12px;
  border-radius: 6px;
  box-shadow: inset 0 0 0 1px var(--border-2);
}
.btn--md-download:hover { background: var(--ink-100); color: var(--ink-900); }

/* ----------- Link styles ----------- */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--ti-blue); font-weight: 600; font-size: 15px;
}
.link-arrow:hover .arrow { transform: translateX(3px); }
.arrow { transition: transform .18s var(--ease-standard); }

.link-underline {
  color: var(--ink-900);
  background-image: linear-gradient(var(--ti-blue), var(--ti-blue));
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: 0 100%;
  transition: color .18s var(--ease-standard), background-size .24s var(--ease-emphasis);
  padding-bottom: 2px;
}
.link-underline:hover { color: var(--ti-blue); background-size: 100% 2px; }

/* ----------- Pill / badge ----------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.02em;
  box-shadow: inset 0 0 0 1px var(--border-1);
  background: #fff; color: var(--fg-2);
}
.pill--blue { background: var(--ti-blue-50); color: var(--ti-blue-700); box-shadow: inset 0 0 0 1px var(--ti-blue-200); }
.pill--dot::before { content:""; width:6px; height:6px; border-radius:50%; background:currentColor; display:inline-block; }
.pill--live::before { background: var(--ok-600); animation: live-pulse 1.8s ease-in-out infinite; }
@keyframes live-pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.35); } }

/* ----------- Divider primitives ----------- */
.rule { height: 1px; background: var(--border-1); border: 0; margin: 0; }
.rule--strong { background: var(--ink-900); height: 1px; }

/* ----------- Torn-edge utility -----------
   A subtle 1px red seismograph line. Used once per page as the brand signature.
*/
.torn {
  display: block;
  height: 14px;
  width: 100%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 14' preserveAspectRatio='none'><polyline points='0,7 40,4 70,10 100,3 130,9 170,4 210,11 240,3 270,9 310,4 350,10 380,3 420,9 460,5 500,11 540,4 580,9 600,6' fill='none' stroke='%23FD2D0C' stroke-width='1.25' stroke-linejoin='round' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

/* ----------- Utility: grid rules (site-wide 12 col pinstripe) ----------- */
.pinstripe {
  background-image:
    linear-gradient(90deg, var(--border-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-2) 1px, transparent 1px);
  background-size: calc(100% / 12) 100%;
}

/* ============================================================
   Site nav (sticky top, 56px) + footer
   ============================================================ */

.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.78);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
          backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border-2);
  height: 68px;
  display: flex; align-items: center;
}
.site-nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; height: 68px;
}
.site-nav__brand {
  display: flex; align-items: center; gap: 10px;
}
.site-nav__mark {
  width: 32px; height: 32px;
  display: block;
  object-fit: contain;
}
.site-nav__name {
  font-family: var(--font-ui);
  font-size: 17px; font-weight: 700;
  letter-spacing: -0.02em; color: var(--ink-900);
}
.site-nav__links {
  display: flex; align-items: center; gap: 32px;
}
.site-nav__link {
  font-family: var(--font-ui);
  font-size: 15.5px; font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink-800);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}
.site-nav__link:hover { color: var(--ti-blue); }
.site-nav__link[aria-current="page"] {
  color: var(--ink-900);
  border-bottom: 2px solid var(--ti-blue);
}
.site-nav__md {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  background: var(--ink-50);
  color: var(--ink-800);
  box-shadow: inset 0 0 0 1px var(--border-1);
  padding: 8px 12px; border-radius: 6px;
  transition: background 0.18s, color 0.18s;
}
.site-nav__md:hover { background: var(--ink-100); color: var(--ink-900); }
.site-nav__cta {
  font-family: var(--font-ui);
  font-size: 15px; font-weight: 600;
  letter-spacing: -0.005em;
  color: #fff; background: var(--ink-950);
  padding: 12px 20px;
  border-radius: 8px;
  transition: background 0.18s;
}
.site-nav__cta:hover { background: var(--ti-blue); color: #fff; }
.site-nav__actions { display: flex; align-items: center; gap: 14px; }

.site-nav__toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  color: var(--ink-800);
}
.site-nav__toggle-icon, .site-nav__toggle-icon::before, .site-nav__toggle-icon::after {
  display: block; width: 22px; height: 1.5px; background: currentColor;
  content: ""; position: relative;
  transition: transform 0.18s, top 0.18s, bottom 0.18s;
}
.site-nav__toggle-icon::before { position: absolute; top: -7px; }
.site-nav__toggle-icon::after  { position: absolute; bottom: -7px; }

@media (max-width: 820px) {
  .site-nav__toggle { display: inline-flex; }
  .site-nav__links {
    position: fixed; inset: 68px 0 auto 0; background: #fff;
    flex-direction: column; align-items: stretch; gap: 0;
    border-bottom: 1px solid var(--border-1);
    padding: 16px 0;
    transform: translateY(-100%); transition: transform 0.22s ease;
    visibility: hidden;
  }
  body.nav-open .site-nav__links {
    transform: translateY(0); visibility: visible;
  }
  body.nav-open .site-nav__toggle-icon { transform: rotate(45deg); }
  body.nav-open .site-nav__toggle-icon::before { top: 0; transform: rotate(-90deg); }
  body.nav-open .site-nav__toggle-icon::after { display: none; }
  .site-nav__link {
    padding: 14px 32px; font-size: 16px; border-bottom: 0;
  }
  .site-nav__link[aria-current="page"] { border-bottom: 0; color: var(--ti-blue); }
  .site-nav__md, .site-nav__cta {
    margin: 8px 32px;
    text-align: center; justify-content: center;
  }
  .site-nav__actions { flex-direction: column; align-items: stretch; gap: 0; }
}

.site-footer {
  background: #fff;
  border-top: 1px solid var(--border-1);
  padding: 72px 0 28px;
  color: var(--ink-700);
  margin-top: 80px;
}
.site-footer__grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 56px;
  align-items: start;
}
@media (max-width: 960px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
  .site-footer__grid > div:nth-child(5) { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .site-footer__grid > div:nth-child(5) { grid-column: auto; }
}
@media (max-width: 520px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}
.site-footer__brand {
  display: flex; align-items: center; gap: 10px; margin-bottom: 18px;
}
.site-footer__mark {
  width: 34px; height: 34px;
  display: block;
  object-fit: contain;
}
.site-footer__name {
  font-family: var(--font-ui);
  font-size: 16px; font-weight: 700;
  letter-spacing: -0.02em; color: var(--ink-900);
}
.site-footer__tag {
  font-size: 15px; color: var(--ink-800);
  line-height: 1.6; margin: 0 0 20px; max-width: 340px;
}
.site-footer__pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-ui); font-size: 13px; font-weight: 600;
  background: var(--ok-100); color: var(--ok-600);
  padding: 6px 12px; border-radius: 999px;
}
.site-footer__pill-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok-600);
}
.site-footer__col-title {
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-900);
  margin-bottom: 18px;
}
.site-footer__list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.site-footer__link {
  font-size: 15px; color: var(--ink-800);
  transition: color 0.18s;
}
.site-footer__link:hover { color: var(--ti-blue); }
.site-footer__agents-note {
  font-size: 12px; color: var(--ink-700); line-height: 1.55;
  margin-top: 16px; max-width: 200px;
}
.site-footer__agents-note code {
  font-family: var(--font-mono); font-size: 11.5px;
  background: var(--ink-50); padding: 1px 5px; border-radius: 3px;
  color: var(--ti-blue);
}
.site-footer__meta {
  padding-top: 20px;
  border-top: 1px solid var(--border-1);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  flex-wrap: wrap;
  font-size: 13.5px; color: var(--ink-700);
}
.site-footer__meta-line {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
}
.site-footer__sep { opacity: 0.4; }
.site-footer__meta-links {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
}
.site-footer__meta-link {
  color: var(--ink-700); transition: color 0.18s;
}
.site-footer__meta-link:hover { color: var(--ti-blue); }

/* ============================================================
   Homepage responsive collapses (1240 -> 800 -> 380)
   ============================================================ */
@media (max-width: 960px) {
  .home-hero__grid,
  .home-section__grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
  .home-principal__grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
  .home-codex__cards { grid-template-columns: repeat(2, 1fr) !important; }
  .home-programs__grid { grid-template-columns: 1fr !important; }
  .home-partners__grid { grid-template-columns: repeat(3, 1fr) !important; }
  .home-writing__row {
    grid-template-columns: 1fr !important;
    gap: 4px !important;
  }
}
@media (max-width: 520px) {
  .home-codex__cards { grid-template-columns: 1fr !important; }
  .home-partners__grid { grid-template-columns: repeat(2, 1fr) !important; }
}

/* Public articles index row hover — indents 14px per blog-index.jsx */
.writing-row:hover { padding-left: 14px !important; }

/* Homepage writing-list row hover — indents 12px per homepage-real.jsx */
.home-writing__row:hover { padding-left: 12px; }
@media (prefers-reduced-motion: reduce) {
  .home-writing__row { transition: none !important; }
  .home-writing__row:hover { padding-left: 0 !important; }
}

/* ============================================================
   Article body prose (public article show)
   ============================================================ */
.article-prose {
  font-family: var(--font-editorial-light);
  font-size: 20px;
  line-height: 1.7;
  color: var(--ink-800);
  max-width: 680px;
}
.article-prose > p:first-of-type {
  font-size: 24px;
  line-height: 1.5;
  color: var(--ink-800);
  font-weight: 400;
}
.article-prose p { margin: 0 0 1.4em; text-wrap: pretty; font-weight: 400; }
.article-prose h2 {
  font-family: var(--font-editorial);
  font-weight: 380;
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 2.4em 0 0.6em;
  font-variation-settings: "opsz" 96, "SOFT" 30;
}
.article-prose h3 {
  font-family: var(--font-grotesk);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 2em 0 0.4em;
}
.article-prose blockquote {
  font-family: var(--font-editorial);
  font-style: italic;
  font-size: 1.6rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
  border-left: 2px solid var(--ti-red);
  padding: 4px 0 4px 28px;
  margin: 2em 0;
  color: var(--ink-800);
}
.article-prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(26,30,59,0.06);
  padding: 2px 6px;
  border-radius: 4px;
}
.article-prose pre { overflow-x: auto; margin: 1.6em 0; border-radius: 6px; }
.article-prose pre code { background: transparent; padding: 0; }
.article-prose a {
  color: var(--ti-blue);
  background-image: linear-gradient(var(--ti-blue), var(--ti-blue));
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: 0 100%;
  padding-bottom: 2px;
}
.article-prose ul, .article-prose ol { padding-left: 1.4em; margin: 1em 0 1.4em; }
.article-prose li { margin: 0.4em 0; }
.article-prose hr { border: 0; border-top: 1px solid rgba(26,30,59,0.2); margin: 3em 0; }
.article-prose table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-family: var(--font-ui); font-size: 15.5px; }
.article-prose th, .article-prose td { text-align: left; padding: 10px 14px; border: 1px solid rgba(26,30,59,0.14); }
.article-prose th { background: rgba(26,30,59,0.04); font-family: var(--font-grotesk); font-weight: 700; font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; }

.article-toc a:hover { color: var(--ti-blue); }

/* ----------- Citation footnotes ([^key] commonmark refs) ----------- */
.article-prose .footnote-ref {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
  cursor: help;
}
.article-prose .footnote-ref a {
  color: var(--ti-blue);
  border-bottom: 0;
  padding: 0 2px;
  text-decoration: none;
}
.article-prose .footnote-ref:hover { color: var(--ti-red); }
.article-prose .footnote-ref:hover a { color: var(--ti-red); }

.article-prose .footnotes {
  margin-top: 4em;
  padding-top: 1.4em;
  border-top: 1px solid rgba(26,30,59,0.14);
  font-size: 14px;
  color: var(--fg-2);
}
.article-prose .footnotes ol { padding-left: 1.6em; }
.article-prose .footnotes li { margin: 0.6em 0; }
.article-prose .citation-block {
  font-family: var(--font-ui);
  margin: 0;
  line-height: 1.55;
}
.article-prose .footnote-backref {
  margin-left: 6px;
  color: var(--ti-blue);
  text-decoration: none;
  font-size: 12px;
}

@media (max-width: 820px) {
  .article-show { grid-template-columns: 1fr !important; }
  .article-toc { position: static !important; border-top: 1px solid rgba(26,30,59,0.14); padding-top: 24px; margin-top: 32px; }
}