/* Vertex Internet Services, company website
   Faithful build of the hi-fi design. Two background tones, hairline rules,
   numbered sections, no shadows, no gradients. */

:root {
  --ink: #1B1915;
  --bg: #F6F3EC;
  --sand: #ECE5D8;
  --text-secondary: #4A453C;
  --muted: #6C6559;
  --muted-2: #8A8375;
  --nav-link: #3A362E;
  --on-dark: #F6F3EC;
  --on-dark-muted: #C7C0B2;
  --on-dark-label: #9A9384;

  --hairline: rgba(27, 25, 21, .14);
  --hairline-strong: rgba(27, 25, 21, .16);
  --hairline-btn: rgba(27, 25, 21, .28);
  --hairline-dark: rgba(246, 243, 236, .16);
  --hairline-dark-2: rgba(246, 243, 236, .2);

  --sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, monospace;

  --pad-x: 60px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body { overflow-x: hidden; }

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

/* grid/flex children must be allowed to shrink below their content,
   otherwise minmax(auto,1fr) tracks overflow the viewport on mobile */
.hero > *, .why-grid > *, .contact-grid > *, .service-row > *,
.step > *, .header-inner > *, .section-head > * { min-width: 0; }

::selection { background: var(--ink); color: var(--bg); }

img { max-width: 100%; }

/* centered 1280px container */
.wrap {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font: 600 15px/1 var(--sans);
  text-decoration: none;
  color: inherit;
  border-radius: 2px;
  padding: 16px 26px;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn-sm { font-size: 13px; padding: 11px 18px; }

.btn-solid { background: var(--ink); color: var(--bg); }
.btn-solid:hover { background: #000; }

.btn-outline { border: 1px solid var(--hairline-btn); }
.btn-outline:hover { border-color: var(--ink); background: var(--ink); color: var(--bg); }

.header-cta { border-color: var(--ink); }

.btn-light { background: var(--bg); color: var(--ink); }
.btn-light:hover { background: #fff; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--hairline);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 26px;
  padding-bottom: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.mark {
  width: 22px;
  height: 22px;
  background: var(--ink);
  transform: rotate(45deg);
}
.mark-sm { width: 16px; height: 16px; }
.brand-name { font: 600 17px/1 var(--sans); letter-spacing: .02em; }

.nav { display: flex; gap: 36px; font: 500 14px/1 var(--sans); }
.nav a { color: var(--nav-link); text-decoration: none; transition: color .18s ease; }
.nav a:hover { color: var(--ink); }

/* mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}
.mobile-nav { display: none; }

/* ---------- hero ---------- */
.hero {
  padding-top: 96px;
  padding-bottom: 88px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 56px;
  align-items: end;
}
.eyebrow {
  font: 600 12px/1 var(--mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 34px;
}
.hero h1 {
  font: 400 68px/1.04 var(--sans);
  letter-spacing: -.02em;
  margin: 0 0 30px;
  text-wrap: balance;
}
.lead {
  font: 400 20px/1.55 var(--sans);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 0 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-mark {
  aspect-ratio: 1 / 1;
  border: 1px solid var(--hairline-strong);
  position: relative;
  overflow: hidden;
}
.hero-mark .hm-inset { position: absolute; inset: 22%; border: 1px solid rgba(27, 25, 21, .3); }
.hero-mark .hm-core { position: absolute; inset: 38%; background: var(--ink); }
.hero-mark .hm-v { position: absolute; top: 0; left: 50%; width: 1px; height: 100%; background: var(--hairline); }
.hero-mark .hm-h { position: absolute; top: 50%; left: 0; height: 1px; width: 100%; background: var(--hairline); }

/* ---------- trust strip ---------- */
.trust {
  background: var(--sand);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.trust-inner {
  padding-top: 26px;
  padding-bottom: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.mono-label {
  font: 500 13px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.trust-tags { display: flex; gap: 44px; font: 600 16px/1 var(--sans); color: var(--muted-2); }

/* ---------- generic section ---------- */
.section { padding-top: 96px; padding-bottom: 96px; }
.section-sand { background: var(--sand); }
.section-ink { background: var(--ink); color: var(--on-dark); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
}
.section-head h2 {
  font: 400 40px/1.1 var(--sans);
  letter-spacing: -.02em;
  margin: 0;
}
.section-index {
  font: 500 13px/1 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.section-index.on-ink { color: var(--on-dark-label); }
.inline-index { display: inline-block; }

/* ---------- services ---------- */
.services { border-top: 1px solid var(--hairline); }
.service-row {
  display: grid;
  grid-template-columns: 80px 1fr 1.4fr;
  gap: 40px;
  padding: 34px 0;
  border-bottom: 1px solid var(--hairline);
}
.service-num { font: 500 15px/1 var(--mono); color: var(--muted-2); }
.service-row h3 { font: 500 26px/1.15 var(--sans); letter-spacing: -.01em; margin: 0; }
.service-row p { font: 400 17px/1.55 var(--sans); color: var(--text-secondary); margin: 0; }

/* ---------- approach steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--hairline-dark);
}
.step { background: var(--ink); padding: 32px 26px 40px; }
.step-num { display: block; font: 500 14px/1 var(--mono); color: var(--on-dark-label); margin-bottom: 60px; }
.step h3 { font: 500 22px/1.2 var(--sans); margin: 0 0 12px; }
.step p { font: 400 15px/1.55 var(--sans); color: var(--on-dark-muted); margin: 0; }

/* ---------- why + stats ---------- */
.why-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 80px; }
.why-title { font: 400 40px/1.08 var(--sans); letter-spacing: -.02em; margin: 22px 0 28px; }
.why-list { display: flex; flex-direction: column; gap: 22px; }
.why-item { border-top: 1px solid var(--hairline); padding-top: 18px; }
.why-item h3 { font: 500 18px/1.3 var(--sans); margin: 0 0 6px; }
.why-item p { font: 400 15px/1.5 var(--sans); color: var(--text-secondary); margin: 0; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--hairline);
  align-self: start;
}
.stat { background: var(--bg); padding: 36px 30px; }
.stat-num { font: 400 54px/1 var(--sans); letter-spacing: -.03em; }
.stat-label { font: 400 15px/1.4 var(--sans); color: var(--muted); margin-top: 10px; }

/* ---------- industries ---------- */
.industries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
.industry { background: var(--sand); padding: 26px 24px; font: 500 18px/1.3 var(--sans); }

/* ---------- testimonial ---------- */
.testimonial { padding-top: 110px; padding-bottom: 110px; text-align: center; }
.testimonial blockquote {
  font: 400 34px/1.35 var(--sans);
  letter-spacing: -.015em;
  max-width: 860px;
  margin: 0 auto 34px;
  text-wrap: balance;
}
.quote-role { font: 500 15px/1.4 var(--sans); }
.quote-org { font: 400 14px/1.4 var(--sans); color: var(--muted); }

/* ---------- careers ---------- */
.careers { border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.careers-inner {
  padding-top: 44px;
  padding-bottom: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.careers-title { font: 400 26px/1.2 var(--sans); letter-spacing: -.01em; margin: 12px 0 0; }
.careers-cta { border-color: var(--ink); white-space: nowrap; }

/* ---------- contact ---------- */
.contact { padding-top: 110px; padding-bottom: 110px; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 60px; align-items: end; }
.contact-title { font: 400 52px/1.05 var(--sans); letter-spacing: -.02em; margin: 22px 0 26px; text-wrap: balance; }
.contact-lead { font: 400 19px/1.55 var(--sans); color: var(--on-dark-muted); max-width: 520px; margin: 0 0 34px; }
.on-ink-label { color: var(--on-dark-label); }
.contact-meta { display: flex; flex-direction: column; gap: 22px; }
.meta-block { border-top: 1px solid var(--hairline-dark-2); padding-top: 14px; }
.meta-block .mono-label { display: block; margin-bottom: 8px; }
.meta-value { font: 400 16px/1.5 var(--sans); }

/* ---------- footer ---------- */
.site-footer { background: var(--bg); }
.footer-inner {
  padding-top: 40px;
  padding-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-name { font: 500 14px/1 var(--sans); }
.footer-meta { font: 400 13px/1 var(--sans); color: var(--muted); }

.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-links a {
  font: 400 13px/1 var(--sans);
  color: var(--muted);
  text-decoration: none;
  transition: color .18s ease;
}
.footer-links a:hover { color: var(--ink); }

/* ---------- legal / doc pages ---------- */
.doc { padding-top: 72px; padding-bottom: 100px; }
.doc-head { max-width: 760px; margin: 0 auto 48px; }
.doc-head .eyebrow { margin-bottom: 18px; }
.doc-head h1 {
  font: 400 46px/1.06 var(--sans);
  letter-spacing: -.02em;
  margin: 0 0 16px;
  text-wrap: balance;
}
.doc-updated {
  font: 500 13px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.doc-body { max-width: 760px; margin: 0 auto; }
.doc-body .lede { font-size: 19px; color: var(--ink); }
.doc-body h2 {
  font: 500 24px/1.28 var(--sans);
  letter-spacing: -.01em;
  margin: 46px 0 14px;
}
.doc-body h3 { font: 500 18px/1.35 var(--sans); margin: 28px 0 10px; }
.doc-body p { font: 400 17px/1.65 var(--sans); color: var(--text-secondary); margin: 0 0 16px; }
.doc-body ul { margin: 0 0 16px; padding-left: 22px; }
.doc-body li { font: 400 17px/1.65 var(--sans); color: var(--text-secondary); margin-bottom: 8px; }
.doc-body a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }
.doc-body strong { color: var(--ink); font-weight: 600; }
.doc-contact {
  border-top: 1px solid var(--hairline);
  margin-top: 44px;
  padding-top: 26px;
}
.doc-contact p { margin-bottom: 6px; }

/* contact cards */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-top: 8px;
}
.contact-card { background: var(--bg); padding: 30px 28px; }
.contact-card .mono-label { display: block; margin-bottom: 12px; }
.contact-card .card-value { font: 400 20px/1.4 var(--sans); letter-spacing: -.01em; }
.contact-card a { color: var(--ink); text-decoration: none; }
.contact-card a:hover { text-decoration: underline; text-underline-offset: 2px; }
.contact-card .card-note { font: 400 15px/1.5 var(--sans); color: var(--muted); margin-top: 8px; }

/* ============ responsive ============ */

/* collapse the nav to a hamburger before the desktop links get cramped */
@media (max-width: 860px) {
  .nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .mobile-nav {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px var(--pad-x) 24px;
    border-top: 1px solid var(--hairline);
  }
  body.nav-open .mobile-nav { display: flex; }
  .mobile-nav a { font: 500 16px/1 var(--sans); color: var(--nav-link); text-decoration: none; padding: 12px 0; }
  .mobile-nav a.btn { color: var(--bg); text-align: center; margin-top: 8px; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}

@media (max-width: 960px) {
  :root { --pad-x: 40px; }

  .hero { grid-template-columns: minmax(0, 1fr); gap: 48px; padding-top: 72px; padding-bottom: 64px; }
  .hero h1 { font-size: 52px; }
  .hero-mark { max-width: 380px; width: 100%; }

  .why-grid { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 44px; align-items: start; }

  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .industries { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .trust-inner { flex-direction: column; align-items: flex-start; gap: 18px; }
  .trust-tags { flex-wrap: wrap; gap: 24px; }
}

@media (max-width: 640px) {
  :root { --pad-x: 24px; }

  /* hero mark is cramped and adds nothing on a phone, so hide it */
  .hero-mark { display: none; }

  .section { padding-top: 64px; padding-bottom: 64px; }
  .hero { padding-top: 56px; padding-bottom: 56px; }
  .testimonial, .contact { padding-top: 72px; padding-bottom: 72px; }

  .hero h1 { font-size: 40px; }
  .lead { font-size: 18px; }
  .section-head { flex-direction: column; gap: 10px; margin-bottom: 40px; }
  .section-head h2, .why-title { font-size: 30px; }
  .contact-title { font-size: 36px; }
  .testimonial blockquote { font-size: 26px; }

  /* services rows: number moves inline above the title */
  .service-row { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .service-num { order: -1; }

  .steps { grid-template-columns: minmax(0, 1fr); }
  .industries { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: 1fr 1fr; }

  .careers-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-actions .btn { flex: 1; text-align: center; }

  .doc-head h1 { font-size: 34px; }
  .doc-body p, .doc-body li { font-size: 16px; }
  .contact-cards { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}