/* ═══════════════════════════════════════
   vLink Engineering — Shared Styles
   ═══════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --white:      #ffffff;
  --off:        #f4f6f8;
  --off2:       #e8edf1;
  --border:     #dce3e8;
  --border-d:   #b5c2ca;
  --ink:        #111827;
  --ink-2:      #1f2937;
  --ink-dim:    #4b5563;
  --ink-mute:   #9ca3af;
  --accent:     #1a7896;
  --accent-d:   #135b73;
  --accent-l:   #e3f2f8;
  --accent-mid: rgba(26,120,150,0.1);
  --blue:       #2f45a5;
  --green:      #1a6b3a;
  --green-l:    #ebf5f0;
  --green-text: #1a6b3a;
  --radius:     10px;
  --radius-sm:  6px;
  --radius-lg:  18px;
  --shadow-sm:  0 1px 4px rgba(14,26,32,0.07);
  --shadow:     0 4px 20px rgba(14,26,32,0.09);
  --shadow-lg:  0 16px 56px rgba(14,26,32,0.13);
  --mono:       'IBM Plex Mono', monospace;
  --display:    'Syne', sans-serif;
  --body:       'DM Sans', sans-serif;
  --header-h:   94px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }
body {
  background: var(--white);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--off); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ── HEADER ── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  transition: transform .3s ease;
}
.site-header.scrolled {
  transform: translateY(-32px);
}

/* top utility strip */
.hdr-top {
  height: 32px;
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.hdr-top-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hdr-top-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hdr-top-tag {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.26);
}
.hdr-top-dot {
  width: 2px; height: 2px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}
.hdr-top-phone {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.45);
  transition: color .15s;
}
.hdr-top-phone:hover { color: rgba(255,255,255,0.82); }

/* main bar */
.hdr-main {
  height: 62px;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.hdr-main-inner {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
}

/* wordmark logo */
.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: auto;
}
.logo-mark-v {
  font-family: var(--display);
  font-weight: 800;
  font-size: 20px;
  color: var(--accent);
  letter-spacing: -0.01em;
  line-height: 1;
}
.logo-mark-link {
  font-family: var(--display);
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1;
}
.logo-sep {
  width: 1px;
  height: 16px;
  background: var(--border-d);
  flex-shrink: 0;
}
.logo-eng {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-link {
  font-family: var(--display);
  font-weight: 500;
  font-size: 13.5px;
  color: var(--ink-dim);
  padding: 6px 14px;
  white-space: nowrap;
  transition: color .15s;
  position: relative;
}
.nav-link:hover { color: var(--ink); }
.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -14px;
  left: 14px; right: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* header cta */
.hdr-cta {
  font-family: var(--display);
  font-weight: 600;
  font-size: 13px;
  background: var(--accent);
  color: #fff;
  padding: 8px 20px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background .18s, box-shadow .18s;
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: 16px;
}
.hdr-cta:hover {
  background: var(--accent-d);
  box-shadow: 0 4px 16px rgba(26,120,150,0.28);
}

.btn-cta {
  font-family: var(--display);
  font-weight: 600;
  font-size: 13px;
  background: var(--ink);
  color: #fff;
  padding: 9px 20px;
  border-radius: 9px;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background .18s, transform .15s, box-shadow .18s;
  white-space: nowrap;
}
.btn-cta:hover {
  background: var(--ink-2);
}
.btn-ghost {
  font-family: var(--display);
  font-weight: 500;
  font-size: 13px;
  color: var(--ink-dim);
  background: transparent;
  border: 1.5px solid var(--border-d);
  padding: 8px 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: border-color .15s, color .15s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ── MOBILE NAV (hamburger) ── */
.hdr-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  margin-left: 12px;
  flex-shrink: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.hdr-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  margin: 0 auto;
  transition: transform .28s ease, opacity .2s ease;
}
.hdr-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hdr-burger.open span:nth-child(2) { opacity: 0; }
.hdr-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: rgba(17,24,39,0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.mobile-nav.open { opacity: 1; visibility: visible; }
.mobile-nav-panel {
  position: absolute;
  top: 0; right: 0;
  height: 100%;
  width: min(84vw, 340px);
  background: var(--white);
  box-shadow: -12px 0 40px rgba(14,26,32,0.18);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + 26px) 28px 32px;
  transform: translateX(100%);
  transition: transform .32s cubic-bezier(.4,0,.2,1);
}
.mobile-nav.open .mobile-nav-panel { transform: translateX(0); }
.mobile-nav-links { display: flex; flex-direction: column; }
.mobile-nav-link {
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: color .15s, padding-left .15s;
}
.mobile-nav-link:hover { color: var(--accent); padding-left: 4px; }
.mobile-nav-link.active { color: var(--accent); }
.mobile-nav-foot { margin-top: auto; padding-top: 28px; }
.mobile-nav-phone {
  font-family: var(--display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: block;
  margin-bottom: 16px;
  transition: color .15s;
}
.mobile-nav-phone:hover { color: var(--accent); }
.mobile-nav-cta {
  margin-left: 0;
  width: 100%;
  justify-content: center;
  padding: 13px 20px;
  font-size: 14px;
}
.mobile-nav-meta {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  margin-top: 18px;
  text-align: center;
  line-height: 1.6;
}

/* ── WRAP ── */
.wrap { padding: 0 60px; }
.section { padding: 96px 0; }

/* ── SECTION LABEL ── */
.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-label::before {
  content: '';
  width: 4px; height: 4px;
  background: currentColor;
  border-radius: 50%;
  flex-shrink: 0;
}
h2.section-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(30px, 3vw, 44px);
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1.08;
}
h2.section-title em { font-style: normal; color: var(--accent); }

/* ── REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.vis { opacity: 1; transform: translateY(0); }

/* ── FOOTER ── */
.site-footer {
  background: var(--ink);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(26,120,150,0.55), transparent);
}

/* ── main grid ── */
.footer-grid {
  max-width: 1300px;
  margin: 0 auto;
  padding: 52px 40px 44px;
  display: grid;
  grid-template-columns: 2.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand { max-width: 320px; }
.footer-tagline {
  font-size: 12.5px;
  color: rgba(255,255,255,0.36);
  line-height: 1.75;
  margin: 16px 0 22px;
}
.footer-contacts { display: flex; flex-direction: column; gap: 11px; }
.footer-contact {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  transition: color .15s;
}
.footer-contact .lucide { width: 14px; height: 14px; color: var(--accent); stroke-width: 1.8; flex-shrink: 0; }
a.footer-contact:hover { color: #fff; }
.footer-col-head {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.32);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  transition: color .15s, transform .15s;
}
.footer-links a:hover { color: #fff; transform: translateX(3px); }

/* ── bottom bar ── */
.footer-bottom {
  max-width: 1300px;
  margin: 0 auto;
  padding: 18px 40px;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.22);
}
.footer-bottom-right { display: flex; align-items: center; gap: 22px; }
.footer-top-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.32);
  background: none;
  transition: color .15s;
}
.footer-top-link:hover { color: var(--accent); }
.footer-top-link .lucide { width: 12px; height: 12px; stroke-width: 2; }

/* ── STATUS BADGE ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-text);
  background: var(--green-l);
  border: 1px solid rgba(26,107,58,0.15);
  padding: 4px 10px;
  border-radius: 20px;
}
.status-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green-text);
  animation: blink 2.4s infinite;
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:.25; } }

/* ═══════════ RESPONSIVE ═══════════ */

/* ── TV / ultra-wide ── */
@media (min-width: 1800px) {
  html { font-size: 18px; }
  .hdr-top-inner, .hdr-main-inner, .footer-grid, .footer-bottom { max-width: 1600px; }
}

/* ── laptop / small desktop ── */
@media (max-width: 1024px) {
  .hdr-top-inner { padding: 0 28px; }
  .hdr-main-inner { padding: 0 28px; }
  .wrap { padding: 0 40px; }
}

/* ── tablet & below: hamburger nav ── */
@media (max-width: 900px) {
  :root { --header-h: 62px; }
  .hdr-top { display: none; }
  .site-header.scrolled { transform: none; }
  .site-nav, .hdr-main .hdr-cta { display: none; }
  .hdr-burger { display: flex; }
  .logo-sep, .logo-eng { display: none; }
  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; gap: 36px 28px; padding: 44px 28px 36px; }
  .footer-brand { grid-column: 1 / -1; max-width: 420px; }
  .footer-bottom { padding-left: 28px; padding-right: 28px; }
}

/* ── phone ── */
@media (max-width: 600px) {
  .hdr-main-inner { padding: 0 18px; }
  .wrap { padding: 0 18px; }
  .section { padding: 52px 0; }
  h2.section-title { font-size: clamp(26px, 7vw, 34px); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; padding: 36px 18px 32px; }
  .footer-brand { grid-column: 1 / -1; max-width: none; }
  .footer-tagline { max-width: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px 18px; }
  .footer-bottom-right { width: 100%; justify-content: space-between; }
}