/* ============================================================
   Apex Integration — design tokens
   ============================================================ */
:root {
  --ink: #0e1420;        /* night-flight navy */
  --ridge: #1a2434;      /* raised panels on ink */
  --cloud: #f3f5f2;      /* light section background */
  --paper: #ffffff;
  --amber: #e9a23b;      /* first-light accent */
  --amber-deep: #c77f1f;
  --text: #1b2430;
  --text-dim: #5d6b7c;
  --text-inv: #e8edf2;
  --text-inv-dim: #97a3b2;
  --line: #dbe1e6;
  --line-inv: rgba(232, 237, 242, 0.14);

  --font-display: 'Sora', 'Avenir Next', 'Segoe UI', sans-serif;
  --font-body: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --radius: 10px;
  --container: 1120px;
  --section-pad: clamp(64px, 9vw, 120px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.3rem, 5.2vw, 3.9rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.22rem; font-weight: 600; }
p { margin: 0 0 1em; }
a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.section { padding: var(--section-pad) 0; }
.section--ink { background: var(--ink); color: var(--text-inv); }
.section--cloud { background: var(--cloud); }

/* mono eyebrow labels, aviation-log style */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber-deep);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 2px;
  background: var(--amber);
}
.section--ink .eyebrow { color: var(--amber); }

.lede {
  font-size: 1.12rem;
  color: var(--text-dim);
  max-width: 62ch;
}
.section--ink .lede { color: var(--text-inv-dim); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--amber { background: var(--amber); color: var(--ink); }
.btn--amber:hover { background: #f2b155; }
.btn--ghost { border-color: var(--line-inv); color: var(--text-inv); background: transparent; }
.btn--ghost:hover { border-color: var(--amber); color: var(--amber); }
.btn--ink { background: var(--ink); color: var(--text-inv); }
.btn--ink:hover { background: var(--ridge); }
.btn[disabled] { opacity: 0.6; cursor: wait; transform: none; }

/* ============================================================
   Navbar
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(14, 20, 32, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-inv);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-inv);
}
.nav__brand svg { height: 34px; width: auto; }
.nav__name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.95rem;
}
.nav__name span { color: var(--amber); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__links a {
  text-decoration: none;
  color: var(--text-inv-dim);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease;
}
.nav__links a:hover { color: var(--text-inv); }
.nav__links a.active { color: var(--amber); border-bottom-color: var(--amber); }
.nav__cta { margin-left: 6px; padding: 10px 20px; }
.nav__toggle {
  display: none;
  background: none;
  border: 0;
  color: var(--text-inv);
  padding: 8px;
  cursor: pointer;
}

/* ============================================================
   Hero — contour terrain + soaring mark (site signature)
   ============================================================ */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--text-inv);
  overflow: hidden;
}
.hero__contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}
.hero__inner {
  position: relative;
  padding: clamp(90px, 12vw, 150px) 0 clamp(80px, 10vw, 130px);
  max-width: 720px;
}
.hero__motto {
  font-family: var(--font-mono);
  color: var(--amber);
  letter-spacing: 0.24em;
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero h1 { margin-bottom: 22px; }
.hero h1 em {
  font-style: normal;
  color: var(--amber);
}
.hero__sub {
  font-size: 1.15rem;
  color: var(--text-inv-dim);
  max-width: 56ch;
  margin-bottom: 38px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero__mark {
  position: absolute;
  right: -40px;
  top: 70px;
  width: clamp(280px, 34vw, 480px);
  opacity: 0.95;
  animation: soar 9s ease-in-out infinite;
  pointer-events: none;
}
@keyframes soar {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-16px) rotate(-1.2deg); }
}

/* stat strip under hero */
.stats {
  border-top: 1px solid var(--line-inv);
  background: var(--ridge);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 34px 0;
}
.stat { color: var(--text-inv); }
.stat__num {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--amber);
}
.stat__label {
  font-size: 0.88rem;
  color: var(--text-inv-dim);
}

/* ============================================================
   Service cards
   ============================================================ */
.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}
.svc-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.svc-card:hover {
  transform: translateY(-4px);
  border-color: var(--amber);
  box-shadow: 0 14px 34px rgba(14, 20, 32, 0.08);
}
.svc-card__icon {
  width: 46px;
  height: 46px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--amber);
  display: grid;
  place-items: center;
}
.svc-card__icon svg { width: 24px; height: 24px; }
.svc-card p { color: var(--text-dim); font-size: 0.97rem; margin: 0; }
.svc-card__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

/* ============================================================
   Feature panels (connectivity / digital twin)
   ============================================================ */
.feature {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}
.feature--flip .feature__copy { order: 2; }
.feature h2 { margin-bottom: 18px; }
.feature__points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.feature__points li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature__points strong { display: block; font-family: var(--font-display); font-size: 1rem; }
.feature__points span { color: var(--text-inv-dim); font-size: 0.95rem; }
.section--cloud .feature__points span,
.section--paper .feature__points span { color: var(--text-dim); }
.feature__bullet {
  flex: none;
  margin-top: 6px;
  width: 12px;
  height: 12px;
  background: var(--amber);
  clip-path: polygon(0 100%, 50% 0, 100% 100%, 50% 72%);
}
.feature__visual {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-inv);
}
.section--cloud .feature__visual { border-color: var(--line); }
.feature__visual svg { width: 100%; height: auto; }

/* ============================================================
   CTA band
   ============================================================ */
.cta-band {
  background: linear-gradient(120deg, var(--ink) 0%, var(--ridge) 100%);
  color: var(--text-inv);
  border-radius: 14px;
  padding: clamp(40px, 6vw, 64px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { margin: 0 0 8px; }
.cta-band p { margin: 0; color: var(--text-inv-dim); }

/* ============================================================
   Page headers (inner pages)
   ============================================================ */
.page-head {
  background: var(--ink);
  color: var(--text-inv);
  padding: clamp(64px, 8vw, 96px) 0;
  position: relative;
  overflow: hidden;
}
.page-head h1 { font-size: clamp(2rem, 4.2vw, 3rem); margin-bottom: 12px; }
.page-head p { color: var(--text-inv-dim); max-width: 60ch; margin: 0; }

/* ============================================================
   About page
   ============================================================ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 40px;
}
.value-card {
  border-left: 3px solid var(--amber);
  padding: 6px 0 6px 22px;
}
.value-card h3 { margin-bottom: 6px; }
.value-card p { color: var(--text-dim); font-size: 0.97rem; margin: 0; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: start;
}
.contact-info h2 { margin-bottom: 14px; }
.contact-info__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.contact-info__item svg { flex: none; width: 22px; height: 22px; color: var(--amber-deep); margin-top: 3px; }
.contact-info__item strong { font-family: var(--font-display); display: block; font-size: 0.98rem; }
.contact-info__item span { color: var(--text-dim); font-size: 0.95rem; }

.form {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: clamp(26px, 4vw, 42px);
  box-shadow: 0 18px 44px rgba(14, 20, 32, 0.07);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.field label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 13px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--cloud);
  color: var(--text);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--amber);
  background: var(--paper);
}
.field--invalid input,
.field--invalid textarea { border-color: #c04434; }
.field__error { color: #c04434; font-size: 0.85rem; }
.form__status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
}
.form__status--ok { background: #e8f4e9; color: #1e6b2e; border: 1px solid #bfe0c4; }
.form__status--err { background: #fbeae8; color: #9c3527; border: 1px solid #efc5be; }

.spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(14, 20, 32, 0.25);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--ink);
  color: var(--text-inv-dim);
  padding: 56px 0 34px;
  border-top: 1px solid var(--line-inv);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 {
  color: var(--text-inv);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer a { color: var(--text-inv-dim); text-decoration: none; font-size: 0.95rem; }
.footer a:hover { color: var(--amber); }
.footer__brand svg { height: 40px; width: auto; margin-bottom: 14px; }
.footer__motto {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}
.footer__bar {
  border-top: 1px solid var(--line-inv);
  padding-top: 22px;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px) {
  .svc-grid, .value-grid { grid-template-columns: repeat(2, 1fr); }
  .feature, .contact-grid { grid-template-columns: 1fr; }
  .feature--flip .feature__copy { order: 0; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__mark { position: static; margin: 40px auto 0; opacity: 0.9; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav__links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 18px 24px 24px;
    border-bottom: 1px solid var(--line-inv);
    display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links a { display: block; padding: 10px 0; font-size: 1.05rem; }
  .nav__toggle { display: block; }
  .nav__cta { display: none; }
  .svc-grid, .value-grid, .form__row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__mark { animation: none; }
  .btn:hover, .svc-card:hover { transform: none; }
  * { transition-duration: 0.01ms !important; }
}