/* ============ NOX // chatapp — marketing site styles ============ */
:root {
  --nox-bg: #07070c;
  --nox-bg-elev: #0d0d18;
  --nox-panel: #111122;
  --nox-panel-hi: #1a1a2e;
  --nox-border: #1f1f3a;
  --nox-text: #e6e6ff;
  --nox-text-dim: #8a8ab0;
  --nox-cyan: #00f0ff;
  --nox-magenta: #ff2bd6;
  --nox-yellow: #f9f871;
  --nox-danger: #ff3864;
  --nox-green: #3ff971;
  --nox-violet: #a06bff;
  --glow-cyan: 0 0 8px #00f0ff, 0 0 16px rgba(0, 240, 255, 0.4);
  --glow-magenta: 0 0 8px #ff2bd6, 0 0 16px rgba(255, 43, 214, 0.4);
}

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

body {
  background: var(--nox-bg);
  color: var(--nox-text);
  font-family: 'Rajdhani', system-ui, sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Rajdhani:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

.font-display { font-family: 'Orbitron', system-ui, sans-serif; font-weight: 900; letter-spacing: 0.15em; }
.font-mono    { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.font-ui      { font-family: 'Rajdhani', system-ui, sans-serif; }

/* Scanlines */
html::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, transparent 0, transparent 2px, rgba(0,0,0,0.18) 2px, rgba(0,0,0,0.18) 3px);
  z-index: 9999;
  mix-blend-mode: multiply;
  opacity: 0.5;
}
html::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.4) 100%);
  z-index: 9998;
}

/* Layout */
nav.top {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: rgba(7,7,12,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--nox-border);
}
nav.top .brand { display: flex; flex-direction: column; align-items: flex-start; gap: 0; }
nav.top .brand .logo { font-family: 'Orbitron'; font-weight: 900; font-size: 22px; letter-spacing: 0.12em; color: var(--nox-text); text-shadow: 0 0 8px rgba(0,240,255,0.4); }
nav.top .brand .sub { font-family: 'JetBrains Mono'; font-size: 9px; letter-spacing: 0.3em; color: var(--nox-text-dim); text-transform: uppercase; }
nav.top .links { margin-left: auto; display: flex; gap: 24px; }
nav.top .links a {
  color: var(--nox-text-dim);
  text-decoration: none;
  font-family: 'JetBrains Mono';
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: color 180ms;
}
nav.top .links a:hover { color: var(--nox-cyan); }

main { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Hero */
.hero {
  padding: 96px 0 64px;
  text-align: center;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(0,240,255,0.12), transparent 60%),
              radial-gradient(ellipse at 70% 60%, rgba(255,43,214,0.10), transparent 60%);
  z-index: -1;
}
.hero h1 {
  font-family: 'Orbitron';
  font-weight: 900;
  font-size: clamp(56px, 11vw, 120px);
  margin: 0;
  letter-spacing: 0.12em;
  line-height: 1;
  position: relative;
  display: inline-block;
  text-shadow: 0 0 20px rgba(0,240,255,0.5);
}
.hero h1::before, .hero h1::after {
  content: 'NOX';
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero h1::before {
  color: var(--nox-magenta);
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  transform: translate(-3px, 0);
  text-shadow: 2px 0 var(--nox-magenta);
  mix-blend-mode: screen;
  animation: glitch-a 4s infinite steps(1);
}
.hero h1::after {
  color: var(--nox-cyan);
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  transform: translate(3px, 0);
  text-shadow: -2px 0 var(--nox-cyan);
  mix-blend-mode: screen;
  animation: glitch-b 4s infinite steps(1);
}
@keyframes glitch-a {
  0%, 92%, 100% { transform: translate(-3px, 0); }
  93% { transform: translate(-6px, 0); }
  95% { transform: translate(2px, -1px); }
}
@keyframes glitch-b {
  0%, 90%, 100% { transform: translate(3px, 0); }
  91% { transform: translate(6px, 1px); }
  94% { transform: translate(-2px, 0); }
}
.hero .sub {
  font-family: 'JetBrains Mono';
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--nox-text-dim);
  margin-top: 8px;
  text-transform: uppercase;
}
.hero p.tagline {
  font-size: 22px;
  color: var(--nox-text-dim);
  max-width: 640px;
  margin: 24px auto 0;
  line-height: 1.5;
}
.hero .cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* Buttons */
.btn {
  font-family: 'Orbitron';
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 13px;
  padding: 12px 24px;
  border: 1px solid;
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 180ms;
}
.btn-cyan { border-color: var(--nox-cyan); color: var(--nox-cyan); }
.btn-cyan:hover { background: var(--nox-cyan); color: var(--nox-bg); box-shadow: var(--glow-cyan); }
.btn-magenta { border-color: var(--nox-magenta); color: var(--nox-magenta); }
.btn-magenta:hover { background: var(--nox-magenta); color: var(--nox-bg); box-shadow: var(--glow-magenta); }
.btn-ghost { border-color: var(--nox-border); color: var(--nox-text-dim); }
.btn-ghost:hover { border-color: var(--nox-cyan); color: var(--nox-text); }

/* Sections */
section.block {
  padding: 80px 0;
  border-top: 1px solid var(--nox-border);
}
section.block h2 {
  font-family: 'Orbitron';
  font-size: 36px;
  letter-spacing: 0.1em;
  margin: 0 0 8px;
  color: var(--nox-text);
}
section.block .label {
  font-family: 'JetBrains Mono';
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--nox-cyan);
  margin-bottom: 8px;
}
section.block .lead {
  color: var(--nox-text-dim);
  font-size: 18px;
  max-width: 640px;
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.feature {
  position: relative;
  background: linear-gradient(180deg, #131326 0%, #0d0d1e 100%);
  border: 1px solid var(--nox-border);
  padding: 20px;
  transition: all 180ms;
}
.feature::before, .feature::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--nox-cyan);
  box-shadow: var(--glow-cyan);
  pointer-events: none;
  opacity: 0;
  transition: opacity 180ms;
}
.feature::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.feature::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }
.feature:hover { border-color: var(--nox-cyan); transform: translateY(-2px); }
.feature:hover::before, .feature:hover::after { opacity: 1; }
.feature h3 {
  font-family: 'Orbitron';
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0 0 8px;
  color: var(--nox-cyan);
}
.feature p { margin: 0; color: var(--nox-text-dim); font-size: 14px; line-height: 1.6; }

/* Privacy/terms long text */
article.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}
article.doc h1 {
  font-family: 'Orbitron';
  font-size: 36px;
  letter-spacing: 0.1em;
  margin: 0 0 8px;
}
article.doc h1 + .label { color: var(--nox-magenta); margin-bottom: 24px; display: block; }
article.doc h2 {
  font-family: 'Orbitron';
  font-size: 18px;
  letter-spacing: 0.12em;
  margin: 32px 0 8px;
  color: var(--nox-cyan);
}
article.doc p, article.doc li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--nox-text);
}
article.doc ul { padding-left: 24px; }
article.doc strong { color: var(--nox-yellow); }
article.doc code {
  font-family: 'JetBrains Mono';
  font-size: 13px;
  background: var(--nox-bg-elev);
  border: 1px solid var(--nox-border);
  padding: 2px 6px;
  color: var(--nox-yellow);
}
article.doc .pillar {
  border: 1px solid var(--nox-cyan);
  padding: 16px 20px;
  margin: 24px 0;
  background: rgba(0, 240, 255, 0.04);
}
article.doc .meta {
  font-family: 'JetBrains Mono';
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--nox-text-dim);
  text-transform: uppercase;
  margin-top: 48px;
  border-top: 1px solid var(--nox-border);
  padding-top: 16px;
}

footer {
  border-top: 1px solid var(--nox-border);
  padding: 32px 24px;
  text-align: center;
  font-family: 'JetBrains Mono';
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--nox-text-dim);
  text-transform: uppercase;
}
footer a { color: var(--nox-cyan); text-decoration: none; }
footer .corner { color: var(--nox-magenta); }

/* Responsive */
@media (max-width: 720px) {
  nav.top { padding: 12px 16px; gap: 12px; }
  nav.top .links { gap: 14px; }
  .hero { padding: 64px 0 32px; }
  section.block { padding: 56px 0; }
  section.block h2 { font-size: 28px; }
}