/* =========================================================
   Bootstack Ventures — shared stylesheet
   Brand tokens are defined in :root for easy rebranding.
   ========================================================= */

:root {
  /* Brand palette (placeholder — adjust to Bootstack brand) */
  --ink: #0d1b2a;
  --ink-soft: #243447;
  --muted: #5b6b7b;
  --bg: #ffffff;
  --surface: #f5f7fa;
  --surface-2: #eef2f7;
  --border: #e1e7ef;
  --primary: #1b4dd6;
  --primary-dark: #1740b0;
  --primary-soft: #eef3ff;
  --accent: #0ea5a4;
  --navy: #0a1726;
  --navy-soft: #122438;

  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(13, 27, 42, .04), 0 2px 8px rgba(13, 27, 42, .05);
  --shadow-md: 0 12px 32px rgba(13, 27, 42, .10);
  --maxw: 1140px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); letter-spacing: -.01em; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; color: var(--ink-soft); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.section { padding: 88px 0; }
.section--surface { background: var(--surface); }
.section--navy { background: var(--navy); color: #fff; }
.section--navy h1, .section--navy h2, .section--navy h3 { color: #fff; }
.section--navy p { color: #c3cfdb; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}
.section--navy .eyebrow { color: #6ea8ff; }

.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.lead { font-size: 1.12rem; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: .95rem;
  padding: 12px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); color: #fff; box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn--light { background: #fff; color: var(--navy); }
.btn--light:hover { background: #eef2f7; color: var(--navy); }
.btn--lg { padding: 14px 28px; font-size: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: inline-flex; align-items: baseline; font-weight: 800; font-size: 1.2rem; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand .dot { color: var(--primary); }
.brand .ventures { font-weight: 500; color: var(--muted); font-size: .92em; margin-left: .3em; letter-spacing: 0; }
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--ink-soft); font-weight: 500; font-size: .95rem; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta-mobile { display: none; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .2s; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 92px 0 84px; overflow: hidden; background: var(--navy); color: #fff; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 60% at 80% 10%, rgba(20,82,204,.35), transparent 60%),
    radial-gradient(50% 50% at 10% 90%, rgba(14,165,164,.25), transparent 60%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; max-width: 860px; }
.hero h1 { color: #fff; }
.hero p { color: #c8d4e0; font-size: 1.18rem; max-width: 640px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-note { margin-top: 22px; font-size: .9rem; color: #9fb1c4; }

/* ---------- Stats strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; padding: 8px; }
.stat .num { font-size: 2.2rem; font-weight: 800; color: var(--primary); letter-spacing: -.02em; }
.stat .label { color: var(--muted); font-size: .92rem; }

/* ---------- Card grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: .96rem; }
.card .icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 18px;
  display: grid; place-items: center; background: var(--primary-soft); color: var(--primary);
}
.card .icon svg { width: 24px; height: 24px; }
.card ul { margin: 14px 0 0; padding-left: 18px; color: var(--ink-soft); font-size: .94rem; }
.card ul li { margin-bottom: 6px; }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.step { position: relative; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; }
.step .step-num {
  width: 38px; height: 38px; border-radius: 50%; background: var(--primary); color: #fff;
  font-weight: 700; display: grid; place-items: center; margin-bottom: 14px;
}
.step h3 { margin-bottom: 6px; }
.step p { margin: 0; font-size: .95rem; }

/* ---------- Trust list ---------- */
.trust-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px 32px; margin: 0; padding: 0; list-style: none; }
.trust-list li { display: flex; gap: 12px; align-items: flex-start; }
.trust-list .check {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(20,82,204,.1); color: var(--primary);
  display: grid; place-items: center; font-weight: 700; font-size: .8rem; margin-top: 2px;
}
.trust-list strong { display: block; color: var(--ink); }
.trust-list span { color: var(--muted); font-size: .93rem; }

/* ---------- Tech / tag groups ---------- */
.tech-group { margin-bottom: 30px; }
.tech-group h3 { margin-bottom: 14px; font-size: 1.05rem; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.tag {
  background: #fff; border: 1px solid var(--border); color: var(--ink-soft);
  padding: 8px 14px; border-radius: 999px; font-size: .9rem; font-weight: 500;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); }
table { width: 100%; border-collapse: collapse; min-width: 560px; background: #fff; }
th, td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--border); font-size: .95rem; vertical-align: top; }
th { background: var(--surface); color: var(--ink); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td strong { color: var(--ink); }

/* ---------- Split (text + panel) ---------- */
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 640px; margin: 0 auto .4rem; }
.cta-band p { max-width: 560px; margin: 0 auto 24px; }

/* ---------- Forms ---------- */
.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: .9rem; color: var(--ink); }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: .96rem; color: var(--ink);
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: #fff;
  transition: border .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(20,82,204,.12);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: .85rem; color: var(--muted); }
.form-success {
  display: none; background: rgba(14,165,164,.1); border: 1px solid rgba(14,165,164,.4);
  color: #0a6b6a; padding: 16px 18px; border-radius: 10px; font-size: .95rem;
}
.form-success.show { display: block; }

/* ---------- Contact info ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.info-block { margin-bottom: 26px; }
.info-block h4 { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.info-block p { margin: 0; }

/* ---------- Legal pages ---------- */
.legal { max-width: 800px; }
.legal h2 { margin-top: 36px; font-size: 1.3rem; }
.legal h2:first-of-type { margin-top: 0; }
.legal p, .legal li { color: var(--ink-soft); }
.legal .updated { color: var(--muted); font-size: .9rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #c3cfdb; padding: 56px 0 28px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 32px; }
.site-footer .brand { color: #fff; margin-bottom: 14px; }
.site-footer .brand .dot { color: #6ea8ff; }
.site-footer .brand .ventures { color: #9fb1c4; }
.site-footer p { color: #9fb1c4; font-size: .92rem; }
.footer-col h4 { color: #fff; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: #c3cfdb; font-size: .92rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .85rem; color: #8aa0b6;
}
.footer-bottom a { color: #8aa0b6; }
.footer-bottom a:hover { color: #fff; }

/* ---------- Reveal animation ---------- */
/* Reveal is a progressive enhancement: only hide when JS is active,
   so content stays visible if scripts do not run. */
html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
html.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Trusted-by logo strip ---------- */
.logos-strip { padding: 40px 0; border-bottom: 1px solid var(--border); }
.logos-label { text-align: center; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 22px; }
.logos { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 16px 44px; }
.logo-chip {
  font-weight: 700; font-size: 1.05rem; letter-spacing: -.01em; color: #9aa7b4;
  opacity: .85; transition: color .15s ease, opacity .15s ease; white-space: nowrap;
}
.logo-chip:hover { color: var(--ink-soft); opacity: 1; }

/* ---------- Capability cards (function-grouped) ---------- */
.cap-card { display: flex; flex-direction: column; height: 100%; }
.cap-card .cap-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.cap-card .cap-head h3 { margin: 0; }
.cap-card .icon { margin-bottom: 0; }
.cap-card .roles { font-size: .82rem; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin: 0 0 14px; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 18px; }
.card-tags .tag { font-size: .82rem; padding: 6px 12px; background: var(--surface); }

/* ---------- Industries band ---------- */
.industries { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.industry {
  display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center;
  padding: 22px 12px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff;
  transition: border .15s ease, transform .15s ease;
}
.industry:hover { border-color: var(--primary); transform: translateY(-2px); }
.industry .icon { width: 30px; height: 30px; color: var(--primary); }
.industry span { font-size: .9rem; font-weight: 600; color: var(--ink-soft); }

/* ---------- Testimonials ---------- */
.quote-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.quote-card .mark { font-size: 2.4rem; line-height: 1; color: var(--primary); font-weight: 800; margin-bottom: 6px; }
.quote-card blockquote { margin: 0 0 20px; font-size: 1rem; color: var(--ink-soft); }
.quote-card .who { margin-top: auto; display: flex; align-items: center; gap: 12px; }
.quote-card .avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; }
.quote-card .who strong { display: block; color: var(--ink); font-size: .92rem; }
.quote-card .who span { color: var(--muted); font-size: .85rem; }

/* ---------- FAQ accordion ---------- */
.faq { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  font-family: inherit; font-size: 1.02rem; font-weight: 600; color: var(--ink);
  padding: 22px 40px 22px 0; position: relative;
}
.faq-q::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; font-weight: 400; color: var(--primary); transition: transform .2s ease;
}
.faq-item.open .faq-q::after { content: "\2212"; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-a p { margin: 0 0 22px; color: var(--ink-soft); font-size: .96rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4, .steps, .stats { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .industries { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .nav-links {
    position: absolute; top: 70px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 10px 24px 20px; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 0; width: 100%; }
  .nav-links a.active { color: var(--primary); }
  .nav-toggle { display: block; }
  .nav-cta > .btn { display: none; }
  .nav-cta-mobile { display: block; padding: 14px 0 4px; border-top: 1px solid var(--border); margin-top: 6px; }
  .nav-cta-mobile a { display: inline-flex !important; width: auto; padding: 12px 22px; color: #fff !important; }
  .brand { font-size: 1.08rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .grid-3, .grid-4, .steps, .stats, .grid-2 { grid-template-columns: 1fr; }
  .trust-list { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .industries { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 56px 0; }
}