/* ==========================================================================
   GateLink — site styles
   Self-contained. No build step, no runtime dependency, no JavaScript needed.
   ========================================================================== */

/* --- tokens ------------------------------------------------------------- */
:root {
  --bg:          #070b14;
  --bg-soft:     #0a1120;
  --panel:       #0c1526;
  --panel-2:     #101c30;
  --line:        rgba(148,163,184,.16);
  --line-strong: rgba(148,163,184,.30);

  --text:   #e6edf6;
  --muted:  #a3b3c9;
  --dim:    #7f92ab;

  --accent:      #2ce0da;
  --accent-deep: #14b8b3;
  --accent-soft: rgba(44,224,218,.10);
  --ink:         #04141a;

  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --nav-h: 4.25rem;
  --wrap: 1160px;
}

/* --- reset -------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
p  { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--ink);
  padding: .65rem 1rem;
  font-weight: 600;
}
.skip:focus { left: 1rem; top: 1rem; }

/* --- typography --------------------------------------------------------- */
.kicker {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}
.kicker .kicker__num { color: var(--dim); margin-right: .6rem; }

h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -.02em; font-weight: 600; }

.h1 { font-size: clamp(2.3rem, 6.2vw, 4.25rem); }
.h2 { font-size: clamp(1.85rem, 4.2vw, 3rem); }
.h3 { font-size: clamp(1.15rem, 2.2vw, 1.4rem); letter-spacing: -.01em; }

.lede  { font-size: clamp(1.05rem, 1.9vw, 1.3rem); color: var(--muted); max-width: 46ch; }
.lead  { font-size: clamp(1rem, 1.6vw, 1.15rem); color: var(--accent); margin-top: 1rem; font-weight: 500; }
.body  { color: var(--muted); max-width: 62ch; }
.mono  { font-family: var(--mono); }

/* --- buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .8rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--accent); color: var(--ink); }
.btn--primary:hover { background: #56ece7; transform: translateY(-1px); }
.btn--ghost { border-color: var(--line-strong); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--sm { padding: .55rem 1rem; font-size: .85rem; }

/* --- navigation --------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7,11,20,.88);
  border-bottom: 1px solid var(--line);
}
@supports (backdrop-filter: blur(10px)) {
  .nav { backdrop-filter: blur(12px); background: rgba(7,11,20,.72); }
}

.nav__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: var(--nav-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -.01em;
  margin-right: auto;
}
.brand__mark {
  width: 1.55rem;
  height: 1.55rem;
  flex: none;
  border-radius: 5px;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  position: relative;
}
.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  background: var(--accent);
}
.brand__mark::before { left: .28rem; top: .42rem; width: .95rem; height: 2px; }
.brand__mark::after  { left: .28rem; top: .82rem; width: .58rem; height: 2px; }
.brand__dot { color: var(--accent); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: .93rem;
}
.nav__links a { color: var(--muted); transition: color .15s ease; }
.nav__links a:hover { color: var(--text); }
/* the CTA is an anchor inside .nav__links, so it needs to out-specify the rule above */
.nav__links a.btn--primary,
.nav__links a.btn--primary:hover { color: var(--ink); }
.nav__cta { margin-left: .5rem; }

#nav-toggle { position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none; }

.nav__burger {
  display: none;
  width: 2.6rem;
  height: 2.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav__burger span {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: var(--text);
  transition: transform .2s ease, opacity .2s ease;
}
#nav-toggle:focus-visible + .nav__burger { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (max-width: 900px) {
  .nav__burger { display: inline-flex; }
  .nav__links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--nav-h);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .25rem 1.5rem 1.35rem;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0,0,0,.45);
    font-size: 1rem;
  }
  #nav-toggle:checked ~ .nav__links { display: flex; }
  .nav__links a { display: block; padding: .95rem 0; border-bottom: 1px solid var(--line); }
  .nav__links li:last-child a { border-bottom: 0; }
  /* the CTA keeps button padding, which the rule above would otherwise win over */
  .nav__links a.btn {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: .85rem 1.25rem;
    font-size: .95rem;
  }
  .nav__cta { margin: 1.15rem 0 0; }
  #nav-toggle:checked ~ .nav__burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  #nav-toggle:checked ~ .nav__burger span:nth-child(2) { opacity: 0; }
  #nav-toggle:checked ~ .nav__burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

/* --- hero --------------------------------------------------------------- */
.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100svh - var(--nav-h));
  display: flex;
  align-items: center;
  padding: 5rem 0 4rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
@supports not (height: 100svh) {
  .hero { min-height: calc(100vh - var(--nav-h)); }
}
.hero__glow,
.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.hero__glow {
  background:
    radial-gradient(1100px 620px at 72% -12%, rgba(44,224,218,.16), transparent 62%),
    radial-gradient(820px 520px at 8% 18%,  rgba(56,110,255,.14), transparent 60%);
}
.hero__grid {
  background-image:
    linear-gradient(to right, rgba(148,163,184,.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148,163,184,.10) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 35%, #000 20%, transparent 78%);
          mask-image: radial-gradient(70% 60% at 50% 35%, #000 20%, transparent 78%);
}

.hero__inner { max-width: 60rem; }
.hero .h1 { margin-bottom: 1.4rem; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2.25rem;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem .75rem;
  margin-top: 3.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.trust li {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .42rem .85rem;
  background: rgba(255,255,255,.015);
}
.trust li::before { content: "\2022"; color: var(--accent); margin-right: .5rem; }

/* --- sections ----------------------------------------------------------- */
.section {
  padding: clamp(4.5rem, 10vw, 8rem) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}
.section--soft { background: var(--bg-soft); }
.section__head { max-width: 58rem; }
.section__head .body { margin-top: 1.5rem; }

/* two-column feature/detail layout, stacks on mobile */
.split {
  display: grid;
  gap: 2.5rem;
  margin-top: 3rem;
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1.05fr .95fr; gap: 4rem; align-items: start; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(1.4rem, 3vw, 2rem);
}
.panel__title {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 1.25rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--line);
}
.checks li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--muted);
  font-size: .97rem;
  margin-bottom: .95rem;
}
.checks li:last-child { margin-bottom: 0; }
.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .5rem;
  height: .5rem;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* domain cards (telecom / defense) */
.cards {
  display: grid;
  gap: 1.25rem;
  margin-top: 3rem;
}
@media (min-width: 760px) { .cards { grid-template-columns: 1fr 1fr; } }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: clamp(1.4rem, 3vw, 2rem);
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.card__tag {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: .9rem;
}
.card p { color: var(--muted); font-size: .97rem; }

/* --- why band ----------------------------------------------------------- */
.pillars {
  display: grid;
  gap: 2.5rem;
  margin-top: 3.5rem;
}
@media (min-width: 900px) { .pillars { grid-template-columns: repeat(3, 1fr); gap: 3rem; } }
.pillar__num {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--accent);
  display: block;
  padding-bottom: 1rem;
  margin-bottom: 1.1rem;
  border-top: 2px solid var(--accent);
  padding-top: 1.1rem;
}
.pillar h3 { margin-bottom: .85rem; }
.pillar p { color: var(--muted); font-size: .97rem; }

/* --- contact ------------------------------------------------------------ */
.cta { text-align: center; }
.cta .body { margin-inline: auto; margin-top: 1.5rem; }
.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .9rem;
  margin-top: 2.5rem;
}
.cta__note {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--dim);
  margin-top: 2rem;
}

/* --- footer ------------------------------------------------------------- */
.footer { padding: 4rem 0 3rem; background: var(--bg-soft); }
.footer__grid { display: grid; gap: 2.5rem; }
@media (min-width: 820px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr; gap: 3rem; } }
.footer__tag { color: var(--muted); max-width: 34ch; margin-top: 1rem; font-size: .95rem; }
.footer__title {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 1.1rem;
}
.footer__list li { margin-bottom: .7rem; font-size: .95rem; color: var(--muted); }
.footer__list a:hover { color: var(--accent); }
.footer__legal {
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--dim);
}

/* --- optional motion (JS only; no-JS renders everything visible) --------- */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .card:hover { transform: none; }
}