/*
  ============================================================
  [Claude] InViNode marketing site — shared stylesheet
  Written by Claude, 2026-07-02. One file, no build step,
  reused (via <link>) across every page in /website.
  ============================================================
*/

:root {
  --blue: #2b3bff;
  --blue-dark: #1b23b8;
  --blue-soft: #eef0ff;
  --ink: #14141c;
  --ink-soft: #52546b;
  --paper: #ffffff;
  --paper-soft: #f5f6fc;
  --line: #e6e7f2;
  --coral: #ff6a4d;
  --coral-dark: #e04e30;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 30px -12px rgba(20, 20, 40, 0.18);
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-weight: 800; line-height: 1.15; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: clamp(34px, 5vw, 56px); }
h2 { font-size: clamp(24px, 3vw, 34px); margin: 0 0 12px; }
h3 { font-size: 19px; margin: 0 0 6px; }
p { color: var(--ink-soft); }
.lede { font-size: 19px; color: var(--ink-soft); max-width: 640px; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-soft);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--coral); color: #fff; box-shadow: 0 10px 24px -10px rgba(255, 106, 77, 0.6); }
.btn-primary:hover { background: var(--coral-dark); }
.btn-secondary { background: var(--ink); color: #fff; }
.btn-secondary:hover { background: #000; }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--ink); }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

/* ── Nav ── */
header.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--ink); }
.brand img { width: 512px; height: 256px; border-radius: 8px; }
.brand:hover { text-decoration: none; }
nav.links { display: flex; align-items: center; gap: 26px; }
nav.links a { color: var(--ink-soft); font-weight: 600; font-size: 15px; }
nav.links a:hover { color: var(--blue); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; }

@media (max-width: 760px) {
  nav.links { position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 24px 20px; border-bottom: 1px solid var(--line); gap: 14px; display: none; }
  nav.links.open { display: flex; }
  .nav-toggle { display: inline-flex; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--ink); }
  .nav-cta .btn-outline { display: none; }
}

/* ── Hero ── */
.hero {
  padding: 84px 0 70px;
  background:
    radial-gradient(circle at 82% 8%, var(--blue-soft) 0%, rgba(238,240,255,0) 55%),
    var(--paper);
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-art {
  background: var(--ink);
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.hero-art img { border-radius: 12px; width: 100%; }
.hero-art .caption { color: #9698b3; font-size: 12px; padding: 10px 6px 2px; text-align: center; }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
}

/* ── Sections ── */
section { padding: 72px 0; }
section.alt { background: var(--paper-soft); }
.section-head { max-width: 620px; margin: 0 auto 44px; text-align: center; }
.section-head.left { margin: 0 0 40px; text-align: left; }

/* ── Feature grid ── */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.card .icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-soft); color: var(--blue);
  border-radius: 12px; font-size: 20px; margin-bottom: 14px;
}
.card p { font-size: 14.5px; margin: 0; }

/* ── Audience strip ── */
.strip {
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
}
.pill {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ── Showcase / screenshots ── */
.shot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--ink);
}
.shot img { width: 100%; }
.shot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 760px) { .shot-grid { grid-template-columns: 1fr; } }

/* ── CTA band ── */
.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: 24px;
  padding: 56px 44px;
  text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #b9bad0; max-width: 480px; margin: 0 auto; }
.cta-band .btn-row { justify-content: center; }

/* ── Generic content pages (about / faq / privacy / contact / links) ── */
.page-hero { padding: 56px 0 20px; }
.prose { max-width: 720px; }
.prose h2 { margin-top: 44px; }
.prose h3 { margin-top: 26px; }
.prose ul, .prose ol { color: var(--ink-soft); padding-left: 22px; }
.prose li { margin-bottom: 6px; }

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin-bottom: 14px;
  background: var(--paper);
}
.faq-item h3 { margin-bottom: 8px; }
.faq-item p { margin: 0; font-size: 15px; }

.link-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 700px) { .link-list { grid-template-columns: 1fr; } }
.link-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: var(--paper);
}
.link-card .kicker { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--coral); margin-bottom: 4px; display: block; }
.link-card a { font-weight: 700; font-size: 16px; }
.link-card p { font-size: 14px; margin: 6px 0 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.contact-card .icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--blue-soft); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 12px;
}

/* ── Footer ── */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 44px 0 32px;
  margin-top: 40px;
  background: var(--paper-soft);
}
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; }
.footer-brand img { width: 28px; height: 28px; border-radius: 7px; }
.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); margin: 0 0 12px; }
.footer-col a { display: block; color: var(--ink-soft); font-size: 14px; margin-bottom: 8px; }
.footer-col a:hover { color: var(--blue); }
.footer-bottom { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }