/* Vinculum - Borg hive landing */
:root {
  --bg:          #020805;
  --bg-elev:    #071609;
  --bg-card:    #0a1d10;
  --border:     #163020;
  --border-hot: #2a5a38;
  --fg:         #c8e6c9;
  --fg-dim:     #6b8a72;
  --fg-faint:   #3f5a47;
  --borg:       #00ff41;
  --borg-2:     #5eff8b;
  --deep:       #0b6623;
  --cyan:       #00e5ff;
  --amber:      #ffb000;
  --red:        #ff3b3b;
  --mono: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  overflow-x: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 70% 50% at 50% -5%, rgba(0,255,65,0.10), transparent 65%),
    radial-gradient(ellipse 50% 35% at 92% 18%, rgba(0,229,255,0.05), transparent 65%),
    radial-gradient(ellipse 60% 40% at 8% 85%, rgba(0,255,65,0.04), transparent 70%);
  background-attachment: fixed;
  min-height: 100%;
}

html, body {
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  scroll-behavior: smooth;
}

body {
  position: relative;
  background: transparent;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -3;
  background-image:
    linear-gradient(rgba(0,255,65,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,65,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 20%, transparent 90%);
          mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 20%, transparent 90%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background: repeating-linear-gradient(
    180deg,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,255,65,0.015) 3px,
    rgba(0,0,0,0) 4px
  );
}

#bg-net {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.85;
}

a { color: var(--borg-2); text-decoration: none; }
a:hover { color: var(--borg); text-shadow: 0 0 8px rgba(0,255,65,0.5); }

code, pre, .mono { font-family: var(--mono); }
pre {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hot) transparent;
}
pre::-webkit-scrollbar { height: 8px; background: transparent; }
pre::-webkit-scrollbar-thumb {
  background: var(--border-hot);
  border-radius: 4px;
}
pre::-webkit-scrollbar-thumb:hover { background: var(--borg); }

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  color: var(--fg-dim);
  background: rgba(13, 38, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  opacity: 0;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: opacity 0.15s, color 0.15s, border-color 0.15s, background 0.15s;
}
.copy-btn svg {
  width: 14px;
  height: 14px;
  display: block;
}
.copy-btn .icon-check { display: none; }
.codeblock:hover .copy-btn,
.step pre:hover .copy-btn,
.copy-btn:focus-visible { opacity: 1; }
.copy-btn:hover {
  color: var(--borg-2);
  border-color: var(--border-hot);
  background: rgba(0,255,65,0.12);
}
.copy-btn.copied {
  opacity: 1;
  color: var(--borg);
  border-color: var(--borg);
  background: rgba(0,255,65,0.18);
}
.copy-btn.copied .icon-copy { display: none; }
.copy-btn.copied .icon-check { display: block; }
@media (hover: none) {
  .copy-btn { opacity: 0.9; }
}

/* Layout */
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: 0; }

/* Nav */
nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(5,18,10,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
nav .brand {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--borg);
  letter-spacing: 0.08em;
  text-shadow: 0 0 12px rgba(0,255,65,0.35);
}
nav .brand::before { content: "▚ "; color: var(--borg-2); }
nav ul { list-style: none; display: flex; gap: 28px; }
nav ul a { color: var(--fg-dim); font-size: 14px; font-family: var(--mono); }
nav ul a:hover { color: var(--borg); }

/* Hero */
.hero { padding: 120px 0 80px; text-align: center; border-top: 0; }
.hero .status {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-hot);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--borg-2);
  margin-bottom: 32px;
  background: rgba(0,255,65,0.04);
}
.hero .status::before {
  content: "";
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--borg);
  box-shadow: 0 0 10px var(--borg);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50%     { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  padding-bottom: 0.12em;
  color: #b8ffc4;
  text-shadow:
    0 0 1px #9effb0,
    0 0 10px rgba(0,255,65,0.95),
    0 0 28px rgba(0,255,65,0.7),
    0 0 60px rgba(0,255,65,0.45),
    0 0 120px rgba(0,255,65,0.25);
  margin-bottom: 24px;
  animation: borg-flicker 5.5s infinite;
}
@keyframes borg-flicker {
  0%, 96%, 100% { opacity: 1; }
  97%           { opacity: 0.82; }
  97.5%         { opacity: 1; }
  98.2%         { opacity: 0.88; }
  98.6%         { opacity: 1; }
}
.hero .tagline {
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--fg-dim);
  max-width: 720px;
  margin: 0 auto 40px;
}
.hero .tagline em { color: var(--fg); font-style: normal; }

.cta { display: inline-flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--borg);
  color: #001b0a;
  box-shadow: 0 0 0 0 rgba(0,255,65,0.4);
}
.btn-primary:hover {
  background: var(--borg-2);
  color: #001b0a;
  text-shadow: none;
  box-shadow: 0 0 30px rgba(0,255,65,0.5);
  transform: translateY(-1px);
}
.btn-ghost:hover {
  text-shadow: none;
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-hot);
}
.btn-ghost:hover {
  border-color: var(--borg);
  color: var(--borg);
}

.demo {
  margin-top: 72px;
  padding: 12px;
  border: 1px solid var(--border-hot);
  border-radius: 12px;
  background: var(--bg-elev);
  box-shadow: 0 20px 60px rgba(0,255,65,0.08),
              inset 0 1px 0 rgba(94,255,139,0.1);
}
.demo img { display: block; width: 100%; border-radius: 6px; }
.demo .bar {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  font-family: var(--mono); font-size: 11px; color: var(--fg-faint);
}
.demo .bar .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--fg-faint); }
.demo .bar .dot.red { background: #ff5f57; }
.demo .bar .dot.yellow { background: #febc2e; }
.demo .bar .dot.green { background: #28c840; }
.demo .bar .title { margin-left: 12px; }

/* Section header */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--borg-2);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.eyebrow::before { content: "» "; color: var(--borg); }
h2 {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 20px;
}
section p.lede {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 720px;
  margin-bottom: 48px;
}

/* Grid */
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  position: relative;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--border-hot); transform: translateY(-2px); }
.card .icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 8px;
  background: rgba(0,255,65,0.08);
  color: var(--borg);
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--fg);
}
.card p { color: var(--fg-dim); font-size: 15px; }
.card code { color: var(--borg-2); font-size: 13px; }

/* Steps timeline */
.steps { display: flex; flex-direction: column; gap: 20px; }
.step {
  display: grid; grid-template-columns: 72px minmax(0, 1fr);
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.step .num {
  font-family: var(--mono);
  font-size: 28px;
  color: var(--borg);
  font-weight: 700;
  text-shadow: 0 0 12px rgba(0,255,65,0.4);
}
.step h3 { font-size: 18px; margin-bottom: 12px; }
.step pre {
  position: relative;
  margin-top: 12px;
  padding: 16px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  overflow-x: auto;
  max-width: 100%;
  color: var(--fg);
}
.step pre .cmt { color: var(--fg-faint); }
.step pre .cmd { color: var(--borg-2); }
.step pre .flag { color: var(--cyan); }

/* Code block */
.codeblock {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 100%;
}
.codeblock pre {
  overflow-x: auto;
  max-width: 100%;
}
.codeblock .head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono); font-size: 12px; color: var(--fg-dim);
}
.codeblock .head .lang { color: var(--borg-2); }
.codeblock pre { padding: 20px 24px; font-size: 14px; line-height: 1.7; color: var(--fg); }
.codeblock .cmt { color: var(--fg-faint); }
.codeblock .cmd { color: var(--borg-2); }
.codeblock .flag { color: var(--cyan); }
.codeblock .str { color: var(--amber); }

/* Quote */
.quote {
  max-width: 820px;
  margin: 0 auto;
  text-align: left;
  font-size: 20px;
  font-style: italic;
  color: var(--fg);
  padding: 40px 32px 36px;
  border-left: 2px solid var(--borg);
  background: linear-gradient(90deg, rgba(0,255,65,0.05), transparent);
  border-radius: 0 12px 12px 0;
  line-height: 1.55;
}
.quote p { margin-bottom: 14px; }
.quote p:last-of-type { margin-bottom: 20px; }
.quote cite {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  font-style: normal;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}

/* Footer */
footer {
  padding: 64px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--fg-faint);
  font-size: 13px;
  font-family: var(--mono);
}
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--fg-dim); }
footer a:hover { color: var(--borg); }

@media (max-width: 860px) {
  nav ul { gap: 20px; }
  nav ul a { font-size: 13px; }
}

@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  nav .wrap {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
    row-gap: 10px;
    column-gap: 16px;
    justify-content: center;
  }
  nav .brand { font-size: 13px; }
  nav ul {
    width: 100%;
    justify-content: center;
    gap: 18px;
  }
  nav ul a { font-size: 12px; }
}

@media (max-width: 640px) {
  section { padding: 64px 0; }
  .hero { padding: 72px 0 48px; }
  .step { grid-template-columns: 1fr; }
  .codeblock pre { padding: 16px; font-size: 13px; }
  .quote { padding: 32px 20px 28px; font-size: 17px; }
}

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  nav ul { gap: 12px; }
  nav ul a { font-size: 11px; }
  .hero h1 { font-size: 40px; }
  .btn { padding: 12px 18px; font-size: 13px; }
  .codeblock pre { font-size: 11.5px; padding: 14px; }
  .codeblock .head { padding: 8px 12px; font-size: 11px; }
}