:root {
  --bg: #070a0e;
  --surface: #0c1118;
  --surface-2: #101720;
  --line: #243240;
  --line-bright: #385164;
  --cyan: #39dcff;
  --cyan-soft: #9beeff;
  --white: #f2f7fa;
  --text: #c4d0d8;
  --muted: #7f919e;
  --mono: "Space Mono", monospace;
  --sans: "IBM Plex Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--sans);
  line-height: 1.55;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: .75rem 1rem;
  color: var(--bg);
  background: var(--cyan);
}
.skip-link:focus { top: 1rem; }
.page-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .4;
  background-image:
    linear-gradient(rgba(57, 220, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 220, 255, .025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; position: relative; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(56, 81, 100, .6);
  background: rgba(7, 10, 14, .9);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  width: max-content;
  color: var(--white);
  font: 700 .85rem var(--mono);
  letter-spacing: .12em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  color: var(--bg);
  background: var(--cyan);
  clip-path: polygon(0 0, 80% 0, 100% 20%, 100% 100%, 20% 100%, 0 80%);
}
.site-header nav { display: flex; gap: 2rem; }
.site-header nav a, footer nav a {
  color: var(--muted);
  font: 700 .7rem var(--mono);
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-header nav a:hover, footer nav a:hover { color: var(--cyan); }
.header-action {
  justify-self: end;
  padding: .65rem .9rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font: 700 .7rem var(--mono);
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
}
.menu-button { display: none; }
.hero {
  min-height: 660px;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
  padding-block: 7rem 5rem;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font: 700 .7rem var(--mono);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow::before { content: "[ "; color: var(--line-bright); }
.eyebrow::after { content: " ]"; color: var(--line-bright); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 700px;
  margin-bottom: 1.5rem;
  color: var(--white);
  font-size: clamp(3rem, 6.4vw, 5.8rem);
  line-height: .98;
  letter-spacing: -.055em;
}
h1 span { color: var(--cyan-soft); }
.lead {
  max-width: 610px;
  margin-bottom: 2rem;
  color: var(--muted);
  font-size: 1.08rem;
}
.actions, .support-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.25rem;
  font: 700 .72rem var(--mono);
  letter-spacing: .09em;
  text-decoration: none;
  text-transform: uppercase;
}
.button.primary { color: #031015; background: var(--cyan); border: 1px solid var(--cyan); }
.button.secondary { color: var(--white); border: 1px solid var(--line-bright); background: rgba(12, 17, 24, .7); }
.button:hover { transform: translateY(-2px); }
.access-panel {
  border: 1px solid var(--line-bright);
  background: linear-gradient(145deg, rgba(16, 23, 32, .96), rgba(8, 13, 19, .96));
  box-shadow: 18px 18px 0 rgba(57, 220, 255, .035);
}
.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 1.4rem;
  border-bottom: 1px solid var(--line);
}
.panel-kicker { color: var(--muted); font: 700 .62rem var(--mono); letter-spacing: .15em; }
.panel-heading h2 { margin: .25rem 0 0; color: var(--white); font-size: 1.25rem; }
.status { color: #67e8a5; font: 700 .62rem var(--mono); text-transform: uppercase; white-space: nowrap; }
.status i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #67e8a5; }
.access-panel > a {
  display: grid;
  grid-template-columns: 35px 1fr auto;
  align-items: center;
  gap: .8rem;
  min-height: 92px;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.access-panel > a:last-child { border-bottom: 0; }
.access-panel > a:hover { background: rgba(57, 220, 255, .045); }
.access-number { color: var(--cyan); font: 700 .67rem var(--mono); }
.access-panel strong { display: block; color: var(--white); font-size: .95rem; }
.access-panel small { display: block; margin-top: .2rem; color: var(--muted); font-size: .82rem; }
.access-panel b { color: var(--cyan); font-size: 1.1rem; }
.trust-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 8rem;
  border-block: 1px solid var(--line);
}
.trust-line span {
  padding: 1.15rem;
  color: var(--muted);
  font: 700 .67rem var(--mono);
  letter-spacing: .12em;
  text-align: center;
  text-transform: uppercase;
}
.trust-line span + span { border-left: 1px solid var(--line); }
.section-intro { max-width: 650px; margin-bottom: 2.5rem; }
.section-intro h2, .support h2 {
  margin-bottom: .8rem;
  color: var(--white);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -.035em;
}
.section-intro > p:last-child, .support > div > p:last-child { color: var(--muted); }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.tool-card {
  min-height: 330px;
  padding: 1.6rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--text);
  background: rgba(10, 15, 21, .82);
  text-decoration: none;
  transition: background .2s, transform .2s;
}
.tool-card:nth-child(3n) { border-right: 0; }
.tool-card:nth-child(n+4) { border-bottom: 0; }
.tool-card:hover { position: relative; z-index: 1; background: var(--surface-2); transform: translateY(-4px); }
.card-index { display: block; margin-bottom: 3rem; color: var(--muted); font: 700 .62rem var(--mono); letter-spacing: .12em; }
.card-icon { margin-bottom: 1.2rem; color: var(--cyan); font: 400 1.8rem var(--mono); }
.tool-card h3 { margin-bottom: .55rem; color: var(--white); font-size: 1.35rem; }
.tool-card p { min-height: 3.2rem; color: var(--muted); font-size: .9rem; }
.card-link { display: block; margin-top: 2rem; color: var(--cyan); font: 700 .68rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.card-link b { float: right; font-size: 1rem; }
.support {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-block: 8rem;
  padding: 3rem;
  border: 1px solid var(--line-bright);
  background: linear-gradient(110deg, var(--surface), rgba(57, 220, 255, .035));
}
.support > div:first-child { max-width: 600px; }
footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 1rem 2rem;
  min-height: 160px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .78rem;
}
footer nav { display: flex; gap: 1.2rem; }
.footer-brand { display: none; }

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    padding: 1.2rem 20px;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }
  .site-header nav.open { display: flex; }
  .menu-button {
    display: block;
    color: var(--white);
    background: none;
    border: 1px solid var(--line);
    padding: .55rem .75rem;
    font: 700 .68rem var(--mono);
    text-transform: uppercase;
  }
  .header-action { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-block: 5rem; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-card:nth-child(3n) { border-right: 1px solid var(--line); }
  .tool-card:nth-child(2n) { border-right: 0; }
  .tool-card:nth-child(n+4) { border-bottom: 1px solid var(--line); }
  .tool-card:nth-child(n+5) { border-bottom: 0; }
  .support { align-items: start; flex-direction: column; }
}

@media (max-width: 580px) {
  .shell { width: min(100% - 28px, 1180px); }
  h1 { font-size: clamp(2.7rem, 14vw, 4.3rem); }
  .trust-line { grid-template-columns: 1fr; margin-bottom: 5rem; }
  .trust-line span + span { border-left: 0; border-top: 1px solid var(--line); }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card, .tool-card:nth-child(3n), .tool-card:nth-child(2n) { border-right: 0; border-bottom: 1px solid var(--line); }
  .tool-card:last-child { border-bottom: 0; }
  .support { margin-block: 5rem; padding: 2rem 1.25rem; }
  .support-actions, .support-actions .button { width: 100%; }
  footer { grid-template-columns: 1fr; padding-block: 2rem; }
}

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