:root {
  --ink-bg: #07090c;
  --ink-panel: #0c1014;
  --ink-line: rgba(0, 240, 255, 0.12);
  --ink-line-strong: rgba(0, 240, 255, 0.28);
  --ink-fg: #e8fdff;
  --ink-muted: #7d8a92;
  --accent: #00f0ff;
  --accent-soft: #7ee8f2;
  --accent-glow: rgba(0, 240, 255, 0.45);
  --radius: 14px;
  --max: 1160px;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-bg);
  color: var(--ink-fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
code, pre { font-family: var(--mono); }
code { color: var(--accent-soft); font-size: 0.9em; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; color: var(--ink-fg); }
p { margin: 0 0 1em; color: var(--ink-fg); opacity: 0.9; }

/* ===== Background ambience ===== */
.bg-field {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse 1200px 800px at 50% -10%, rgba(0,240,255,0.08), transparent 60%),
    radial-gradient(ellipse 900px 600px at 85% 110%, rgba(0,240,255,0.05), transparent 60%),
    radial-gradient(ellipse 900px 600px at 15% 110%, rgba(126,232,242,0.03), transparent 60%),
    var(--ink-bg);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,240,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* ===== Nav ===== */
.nav {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  background: rgba(7, 9, 12, 0.6);
  border-bottom: 1px solid var(--ink-line);
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-weight: 700;
  letter-spacing: 0.3em; font-size: 14px;
}
.nav-brand img { filter: drop-shadow(0 0 10px var(--accent-glow)); }
.nav-word { color: var(--ink-fg); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-muted);
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border: 1px solid var(--ink-line-strong);
  border-radius: 999px; color: var(--ink-fg) !important;
  background: rgba(0,240,255,0.04);
  transition: all .2s ease;
}
.nav-cta:hover { background: rgba(0,240,255,0.1); border-color: var(--accent); }

/* ===== Hero ===== */
.hero {
  min-height: calc(100vh - 66px);
  display: grid; place-items: center;
  padding: 80px 24px 120px;
  position: relative;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at 50% 40%, rgba(0,240,255,0.08), transparent 55%);
}
.hero-lockup { text-align: center; max-width: 780px; position: relative; }
.hero-mark {
  display: inline-block; margin-bottom: 24px;
  filter: drop-shadow(0 0 40px rgba(0,240,255,0.45));
  animation: floaty 8s ease-in-out infinite;
}
@keyframes floaty {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%     { transform: translateY(-6px) rotate(0.5deg); }
}
.hero-title {
  font-family: var(--mono); font-weight: 700; font-size: clamp(72px, 13vw, 172px);
  letter-spacing: 0.12em; line-height: 1; margin: 0;
  background: linear-gradient(180deg, #ffffff 0%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 30px rgba(0,240,255,0.18));
}
.hero-sub {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.5em;
  color: var(--accent-soft); margin: 10px 0 28px; text-transform: uppercase;
  opacity: 0.85;
}
.hero-sub .dot { color: var(--ink-muted); margin: 0 10px; }
.hero-lede {
  font-size: clamp(16px, 2vw, 20px); color: var(--ink-fg); opacity: 0.8;
  max-width: 620px; margin: 0 auto 36px;
}
.hero-lede strong { color: var(--accent-soft); font-weight: 600; }
.hero-ctas {
  display: inline-flex; flex-wrap: wrap; gap: 12px; justify-content: center;
  margin-bottom: 40px;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px;
  font-family: var(--mono); font-size: 13px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  transition: all .2s ease;
  cursor: pointer; border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #00b8c4);
  color: #03181d; box-shadow: 0 0 30px rgba(0,240,255,0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 40px rgba(0,240,255,0.55); }
.btn-ghost {
  border-color: var(--ink-line-strong); color: var(--ink-fg);
  background: rgba(0,240,255,0.02);
}
.btn-ghost:hover { border-color: var(--accent); background: rgba(0,240,255,0.08); }

.hero-badges {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 26px;
  list-style: none; margin: 0; padding: 0;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  color: var(--ink-muted); text-transform: uppercase;
}
.dot-live {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  margin-right: 8px; vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: 0.5; transform: scale(0.85); }
}

/* ===== Section shell ===== */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid var(--ink-line);
}
.section-head { margin-bottom: 56px; max-width: 720px; }
.kicker {
  display: inline-block; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.35em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 16px;
  padding: 5px 12px; border: 1px solid var(--ink-line-strong); border-radius: 999px;
  background: rgba(0,240,255,0.04);
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.02em; line-height: 1.15;
}

/* ===== About ===== */
.about-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  margin-bottom: 40px;
}
.about-card {
  padding: 28px;
  background: linear-gradient(180deg, rgba(0,240,255,0.02), rgba(0,240,255,0));
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
}
.about-card h3 { font-size: 18px; color: var(--accent-soft); margin-bottom: 14px; font-family: var(--mono); letter-spacing: 0.02em; }
.about-card p { font-size: 15px; line-height: 1.7; }

.manifesto {
  margin: 0; padding: 32px 36px;
  background: linear-gradient(135deg, rgba(0,240,255,0.06), rgba(0,240,255,0.01));
  border: 1px solid var(--ink-line-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  font-size: 17px; line-height: 1.7;
}
.manifesto p { margin: 0 0 12px; font-style: italic; color: var(--ink-fg); opacity: 0.95; }
.manifesto cite {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--accent-soft); font-style: normal;
}

/* ===== Architecture layers ===== */
.layers {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-bottom: 48px;
}
.layer {
  position: relative; padding: 28px 24px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  transition: all .3s ease;
}
.layer:hover {
  border-color: var(--ink-line-strong);
  transform: translateY(-3px);
  box-shadow: 0 20px 50px -30px var(--accent-glow);
}
.layer-num {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--accent); margin-bottom: 14px;
}
.layer h3 { font-size: 18px; margin-bottom: 10px; }
.layer p { font-size: 14px; line-height: 1.65; color: var(--ink-fg); opacity: 0.75; margin-bottom: 14px; }
.layer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.layer ul li {
  font-size: 11px; font-family: var(--mono);
  padding: 3px 9px; border-radius: 6px;
  background: rgba(0,240,255,0.06); color: var(--accent-soft);
}

.arch-diagram {
  margin: 0; padding: 24px;
  background: #040608;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 12px; line-height: 1.35;
  color: var(--accent-soft);
}

/* ===== Tools grid ===== */
.tools {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.tool {
  display: flex; align-items: center; gap: 18px;
  padding: 18px 22px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: 12px;
  transition: all .2s ease;
}
.tool:hover { border-color: var(--ink-line-strong); background: rgba(0,240,255,0.03); }
.tool code {
  font-size: 13px; color: var(--accent); font-weight: 500;
  flex-shrink: 0; min-width: 150px;
}
.tool span { font-size: 13px; color: var(--ink-muted); }

/* ===== Security ===== */
.sec-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.sec {
  padding: 24px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
}
.sec h4 {
  font-size: 14px; color: var(--accent-soft);
  font-family: var(--mono); letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.sec p { font-size: 13.5px; line-height: 1.6; color: var(--ink-muted); margin: 0; }

/* ===== Install steps ===== */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 16px;
}
.steps li {
  padding: 24px 28px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
}
.steps h4 {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.08em;
  color: var(--accent-soft); text-transform: uppercase;
  margin-bottom: 14px;
}
.steps pre {
  margin: 0; padding: 14px 16px;
  background: #040608;
  border: 1px solid var(--ink-line);
  border-radius: 8px;
  font-size: 12.5px; line-height: 1.6;
  overflow-x: auto;
  color: var(--accent-soft);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--ink-line);
  padding: 40px 24px 28px;
  margin-top: 60px;
}
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 18px;
  padding-bottom: 18px;
}
.footer-brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); letter-spacing: 0.25em; font-size: 13px;
}
.footer-brand img { filter: drop-shadow(0 0 8px var(--accent-glow)); }
.footer-tagline {
  color: var(--ink-muted); font-size: 11px;
  letter-spacing: 0.3em; text-transform: uppercase;
}
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  font-family: var(--mono); font-size: 12px;
  color: var(--ink-muted); letter-spacing: 0.14em;
  text-transform: uppercase; transition: color .2s ease;
}
.footer-links a:hover { color: var(--accent); }
.footer-fine {
  max-width: var(--max); margin: 0 auto; text-align: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--ink-muted); opacity: 0.6; text-transform: uppercase;
  padding-top: 14px; border-top: 1px solid var(--ink-line);
}

/* ===== Mobile ===== */
@media (max-width: 720px) {
  .nav { padding: 12px 18px; }
  .nav-links { gap: 14px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .section { padding: 72px 18px; }
  .hero { padding: 60px 18px 80px; }
  .tool { flex-direction: column; align-items: flex-start; gap: 6px; }
  .tool code { min-width: 0; }
  .footer-inner { flex-direction: column; text-align: center; }
}