/* AI2SEE premium public-site shell and design tokens. */
:root {
  color-scheme: light;
  --paper: #F7F8FC;
  --paper-2: #EDF1F8;
  --bg: #F7F8FC;
  --white: #F7F8FC;
  --ink: #172033;
  --midnight: #11182D;
  --muted: #5c5663;
  --muted-2: #7a7380;
  --signal: #FF705E;
  --signal-dark: #E55A4C;
  --accent: #FF705E;
  --accent-text: #C44738;
  --accent-hover: #E55A4C;
  --accent-soft: #FFE4DE;
  --surface: #EDF1F8;
  --surface-2: #DCE8F4;
  --surface-inverse: #11182D;
  --panel-dark: #11182D;
  --line: #D8DFEB;
  --line-soft: #E7EBF3;
  --rule: #D8DFEB;
  --rule-soft: #E7EBF3;
  --pale: #DCE8F4;
  --navy: #11182D;
  --gray-200: #D8DFEB;
  --gray-600: #556078;
  --f-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter Tight", "Segoe UI", sans-serif;
  --f-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter Tight", "Segoe UI", sans-serif;
  --f-mono: var(--f-sans);
  --ease-rise: cubic-bezier(0.16, 1, 0.3, 1);
  --shell: 1280px;
  --gutter: clamp(24px, 5vw, 64px);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 40px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html {
  background: var(--bg);
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  scrollbar-color: var(--accent) var(--pale);
  scrollbar-width: thin;
}
body {
  margin: 0;
  min-width: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.47 var(--f-sans);
  letter-spacing: -0.011em;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; cursor: pointer; }
img, video, svg { display: block; max-width: 100%; }
video { background: var(--midnight); }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.07;
  text-rendering: optimizeLegibility;
}
h1 { letter-spacing: -0.03em; line-height: 1.02; }
h2 { letter-spacing: -0.025em; line-height: 1.05; }
h3 { letter-spacing: -0.02em; line-height: 1.12; }
h1, h2 { text-wrap: balance; }
p { overflow-wrap: break-word; }
.rise-line {
  display: block;
  overflow: clip;
  padding-bottom: 0.14em;
  margin-bottom: -0.1em;
}
.rise-line > span { display: block; }
.serif, em { font: inherit; }
.container, .footer-inner {
  width: 100%;
  max-width: calc(var(--shell) + 2 * var(--gutter));
  padding-inline: var(--gutter);
  margin-inline: auto;
}
::selection { background: var(--accent); color: var(--ink); }
:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 52px;
  padding: 12px 24px;
  border: 1px solid var(--ink);
  border-radius: 100px;
  font: 600 12px/1.35 var(--f-sans);
  letter-spacing: -0.01em;
  transition: background 180ms var(--ease-out), color 180ms var(--ease-out), border-color 180ms var(--ease-out), transform 180ms var(--ease-out);
}
.btn svg, .text-link svg {
  width: 18px;
  height: 18px;
  flex: none;
  transition: transform 180ms var(--ease-out);
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}
.btn-outline { background: transparent; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.016em;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  transition: text-decoration-color 180ms ease, color 180ms ease;
}
.text-link:hover { text-decoration-color: currentColor; }
p a { text-decoration: underline; text-underline-offset: 4px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

nav {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(20px);
  transition: background 220ms var(--ease-out), border-color 220ms var(--ease-out), transform 300ms var(--ease-out);
}
nav.is-solid, nav.story-nav {
  background: var(--bg);
  border-bottom-color: var(--line);
}
nav.is-hidden {
  transform: translateY(-100%);
}
nav .nav-inner {
  max-width: calc(var(--shell) + 2 * var(--gutter));
  height: 78px;
  padding-inline: var(--gutter);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 20px/1 var(--f-sans);
  letter-spacing: -0.035em;
}
.logo-mark { width: 25px; height: 25px; }
.logo-mark .accent { fill: var(--accent); }
.logo .num-2 { color: var(--accent); }
nav .nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav .nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font: 400 12px/1.3 var(--f-sans);
  letter-spacing: -0.01em;
}
nav .nav-links a:not(.nav-cta) {
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease;
}
nav .nav-links a.nav-cta {
  padding: 12px 22px;
  border: 1px solid var(--ink);
  border-radius: 100px;
  background: var(--ink);
  color: var(--bg) !important;
  transition: background 180ms var(--ease-out), color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

footer {
  padding: 72px 0 24px;
  background: var(--midnight);
  color: #C0CADE;
}
footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 52px;
}
footer .logo, footer h3, footer h4 { color: var(--bg); }
footer .footer-brand .logo > span > span { color: var(--accent); }
footer .footer-brand p { font-size: 14px; max-width: 320px; margin-top: 18px; }
footer ul { list-style: none; margin: 0; padding: 0; }
footer li { margin: 9px 0; }
footer a { font-size: 13px; transition: color 180ms ease; }
footer a:hover { color: var(--bg); }
footer .footer-bottom {
  border-top: 1px solid #47536D;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12px;
}
footer .social-links { display: flex; gap: 10px; }
footer .social-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid #47536D;
  border-radius: 100px;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}
footer .social-btn svg { width: 14px; height: 14px; }
.page-header {
  padding: 170px 0 80px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.page-title { font-size: clamp(42px, 6vw, 76px); max-width: 900px; }
.page-label, .section-eyebrow { display: none; }

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--signal-dark);
    border-color: var(--signal-dark);
    transform: translateY(-2px);
  }
  .btn-outline:hover { background: var(--ink); color: var(--bg); }
  .btn:hover svg, .text-link:hover svg { transform: translateX(4px); }
  nav .nav-links a:not(.nav-cta):hover { border-bottom-color: var(--ink); }
  nav .nav-links a.nav-cta:hover {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: var(--ink) !important;
  }
  footer .social-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--ink);
  }
}

@media (max-width: 800px) {
  nav .nav-inner { height: 68px; }
  footer .footer-grid { grid-template-columns: 1fr 1fr; }
  .page-header { padding: 130px 0 55px; }
}
@media (max-width: 480px) {
  footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  nav, .btn, .text-link, footer a, footer .social-btn {
    transition-duration: 0.01ms;
  }
}