:root {
  --bg: #07141c;
  --bg-2: #0b1e29;
  --panel: #0d2431;
  --line: #17465a;
  --cyan: #35c9db;
  --cyan-hi: #7af1ff;
  --cube-top: #eaf8fb;
  --cube-l: #b4d6df;
  --cube-r: #7eaebd;
  --text: #d9eef3;
  --muted: #7d9ca8;
  --cut: 14px;
  --f-head: 'Unbounded', system-ui, sans-serif;
  --f-body: 'Manrope', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 500 16px/1.6 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }
code { font-family: var(--f-mono); }

/* isometric grid, fades out downwards */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 75% 30%, rgba(53, 201, 219, .14), transparent 70%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='34.64'%3E%3Cpath d='M0 0L60 34.64M60 0L0 34.64' stroke='%2335c9db' stroke-opacity='.07' stroke-width='1'/%3E%3C/svg%3E");
  -webkit-mask-image: linear-gradient(#000 40%, transparent 100%);
          mask-image: linear-gradient(#000 40%, transparent 100%);
}

/* chamfered frame, echoes the hexagon in the logo */
.chamfer {
  --c: var(--cut);
  clip-path: polygon(var(--c) 0, calc(100% - var(--c)) 0, 100% var(--c), 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, var(--c) 100%, 0 calc(100% - var(--c)), 0 var(--c));
  background: linear-gradient(135deg, var(--cyan-hi), var(--cyan) 40%, var(--line));
  padding: 1.5px;
}
.chamfer-in {
  clip-path: inherit;
  background: var(--panel);
}

/* header */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font: 800 18px var(--f-head);
  letter-spacing: .08em;
}
.brand img { border-radius: 8px; }
.brand b { color: var(--cyan); font-weight: 800; }
.nav { display: flex; gap: 28px; }
.nav a {
  font: 500 13px var(--f-mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s;
}
.nav a:hover { color: var(--cyan-hi); }

main { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* hero */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 40px;
  min-height: min(calc(100vh - 90px), 820px);
  min-height: min(calc(100svh - 90px), 820px);
  padding: 20px 0 60px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font: 500 12px var(--f-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.tag #version:not(:empty)::before { content: '· '; }
.dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  transform: rotate(45deg);
}
h1 {
  margin: 0;
  font: 800 clamp(34px, 5.4vw, 64px)/1.05 var(--f-head);
  letter-spacing: -.01em;
}
h1 em {
  font-style: normal;
  color: transparent;
  background: linear-gradient(90deg, var(--cyan-hi), var(--cyan));
  -webkit-background-clip: text;
          background-clip: text;
}
.lead {
  max-width: 520px;
  margin: 24px 0 36px;
  font-size: 18px;
  color: var(--muted);
}

.ip-card { max-width: 520px; filter: drop-shadow(0 0 24px rgba(53, 201, 219, .18)); }
.ip-card .chamfer-in { padding: 18px 22px 20px; }
.ip-label {
  display: block;
  margin-bottom: 8px;
  font: 500 11px var(--f-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.ip-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.ip {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  color: var(--cube-top);
  word-break: break-all;
}

.copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 0;
  background: var(--cyan);
  color: var(--bg);
  font: 600 13px var(--f-mono);
  letter-spacing: .04em;
  cursor: pointer;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background .2s, transform .1s;
}
.copy:hover { background: var(--cyan-hi); }
.copy:active { transform: translateY(1px); }
.copy:focus-visible { outline: 2px solid var(--cyan-hi); outline-offset: 3px; }
.copy.sm { padding: 8px 10px; }

/* iso build */
.hero-art { position: relative; }
#build { width: 100%; max-width: 520px; display: block; margin: 0 auto; overflow: visible; }
#build .cube { animation: drop .55s cubic-bezier(.2, .9, .3, 1.15) both; }
#build .ghost { animation: drop .55s cubic-bezier(.2, .9, .3, 1.15) both, pulse 2.4s ease-in-out infinite; }
#build .ghost polygon { fill: rgba(122, 241, 255, .06); stroke: var(--cyan-hi); stroke-width: 1; stroke-dasharray: 3 3; }
#build .plate { filter: drop-shadow(0 0 18px rgba(53, 201, 219, .55)); }
#build .scan { animation: scan 4.5s ease-in-out infinite; }
@keyframes drop {
  from { transform: translateY(-46px); opacity: 0; }
  to { transform: none; opacity: 1; }
}
@keyframes pulse { 50% { opacity: .35; } }
@keyframes scan {
  0%, 100% { transform: translateY(-120px); opacity: 0; }
  15%, 85% { opacity: 1; }
  50% { transform: translateY(70px); }
}
.legend {
  display: flex;
  justify-content: center;
  gap: 22px;
  margin-top: 6px;
  font: 500 11px var(--f-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.sw { width: 10px; height: 10px; display: inline-block; transform: rotate(45deg); }
.sw-solid { background: var(--cube-top); }
.sw-ghost { border: 1px dashed var(--cyan-hi); }

/* sections */
.block { padding: 80px 0; border-top: 1px solid var(--line); }
.h {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin: 0 0 40px;
  font: 700 clamp(24px, 3vw, 34px)/1.2 var(--f-head);
}
.h .n {
  font: 600 13px var(--f-mono);
  color: var(--cyan);
  padding: 4px 8px;
  border: 1px solid var(--cyan);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.steps li { display: flex; gap: 18px; align-items: flex-start; }
.steps .k {
  flex: none;
  display: grid;
  place-items: center;
  width: 44px; height: 50px;
  font: 800 18px var(--f-head);
  color: var(--bg);
  background: var(--cube-top);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}
.steps li:nth-child(2) .k { background: var(--cube-l); }
.steps li:nth-child(3) .k { background: var(--cyan); }
.steps h3 { margin: 4px 0 6px; font: 700 16px var(--f-head); }
.steps p { margin: 0; color: var(--muted); }
.steps code { color: var(--cyan-hi); }

.addr-list { display: grid; gap: 10px; max-width: 720px; }
.addr {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 14px 14px 18px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cube-r);
}
.addr.main { border-left-color: var(--cyan); background: var(--panel); }
.addr-tag {
  font: 500 11px var(--f-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.addr.main .addr-tag { color: var(--cyan); }
.addr code { font-size: 17px; color: var(--cube-top); word-break: break-all; }
.addr-note { max-width: 720px; margin: 18px 0 0; color: var(--muted); font-size: 14px; }

/* footer */
.foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.foot p { margin: 0; max-width: 460px; text-align: right; }
.foot-brand { display: flex; align-items: center; gap: 10px; font: 700 13px var(--f-head); letter-spacing: .1em; color: var(--text); }
.foot-brand img { border-radius: 6px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  padding: 10px 18px;
  background: var(--cyan);
  color: var(--bg);
  font: 600 13px var(--f-mono);
  transform: translate(-50%, 20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 30px; }
  .hero-art { order: -1; max-width: 360px; margin: 0 auto; width: 100%; }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .top { padding: 16px; }
  main { padding: 0 16px; }
  .nav { display: none; }
  .block { padding: 56px 0; }
  .addr { grid-template-columns: 1fr auto; }
  .addr-tag { grid-column: 1 / -1; }
  .foot { flex-direction: column; align-items: flex-start; padding: 28px 16px 32px; }
  .foot p { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}