/* ============================================================
   BADWOLF // SOCKET SERVER — docs site theme
   Shared by index / features / use-cases / architecture / docs
   ============================================================ */

:root {
  --bg-0: #03000a; --bg-1: #06010f; --bg-2: #0a0418; --bg-3: #11082a;
  --card: rgba(14, 7, 34, 0.66); --card-2: rgba(18, 9, 44, 0.9);
  --line: rgba(5, 217, 232, 0.22);
  --cyan: #05d9e8; --pink: #ff2a6d; --violet: #b14aff; --lime: #00ff9f;
  --yellow: #f9f871; --amber: #ff9b00;
  --text: #d8e0ee; --bright: #ffffff; --dim: #7f8db0; --faint: #46557a;
  --sans: "Orbitron", system-ui, sans-serif;
  --mono: "Share Tech Mono", monospace;
  --code: "JetBrains Mono", monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--mono); background: var(--bg-0); color: var(--text);
  line-height: 1.65; letter-spacing: 0.02em; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

/* backdrop */
.bg { position: fixed; inset: 0; z-index: -2; }
.bg::before { content: ""; position: absolute; inset: -50%;
  background:
    radial-gradient(circle at 18% 12%, rgba(5,217,232,0.10), transparent 40%),
    radial-gradient(circle at 82% 26%, rgba(255,42,109,0.10), transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(177,74,255,0.10), transparent 45%); }
.grid-bg { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(5,217,232,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5,217,232,0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 82%); }
.scan { position: fixed; inset: 0; z-index: 999; pointer-events: none; opacity: 0.5;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.16) 0 1px, transparent 1px 3px); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(10px);
  background: rgba(3,0,10,0.72); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.nav-brand { font-family: var(--sans); font-weight: 900; font-size: 17px; letter-spacing: 0.13em;
  color: #fff; text-decoration: none; display: flex; align-items: center; gap: 9px; }
.nav-brand .glyph { color: var(--cyan); text-shadow: 0 0 12px var(--cyan); font-size: 21px; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { color: var(--dim); text-decoration: none; font-size: 12.5px; letter-spacing: 0.1em; transition: color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--cyan); }
.nav-cta { border: 1px solid var(--cyan); border-radius: 3px; padding: 6px 14px; color: var(--cyan) !important; }
.nav-cta:hover { background: rgba(5,217,232,0.14); box-shadow: 0 0 14px rgba(5,217,232,0.3); }
.nav-hamburger { display: none; background: none; border: none; color: var(--cyan); font-size: 22px; cursor: pointer; }

/* headings */
h1 { font-family: var(--sans); font-weight: 900; letter-spacing: 0.04em; line-height: 1.06; color: #fff; }
h2 { font-family: var(--sans); font-weight: 700; letter-spacing: 0.04em; font-size: clamp(24px, 3.6vw, 34px); color: #fff; }
h3 { font-family: var(--sans); font-weight: 700; letter-spacing: 0.04em; font-size: 19px; color: #fff; }
h4 { font-family: var(--sans); font-weight: 500; letter-spacing: 0.03em; color: #fff; }
.gradient-text { background: linear-gradient(120deg, var(--cyan), var(--pink));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.label { display: inline-block; color: var(--cyan); font-size: 12px; letter-spacing: 0.34em; text-transform: uppercase; margin-bottom: 12px; }
.subtitle { color: var(--dim); font-size: 15px; max-width: 720px; }

/* hero */
.hero { text-align: center; padding: 92px 0 46px; }
.hero .kicker { color: var(--cyan); font-size: 12px; letter-spacing: 0.42em; text-transform: uppercase; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); margin: 18px 0 16px;
  background: linear-gradient(120deg, #fff 20%, var(--cyan) 55%, var(--pink) 92%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-tagline { font-size: clamp(17px, 2.4vw, 21px); color: var(--text); max-width: 760px; margin: 0 auto; }
.hero-tagline b { color: var(--yellow); }
.hero-subtitle { color: var(--dim); font-size: 15px; max-width: 680px; margin: 16px auto 0; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

/* buttons */
.btn { font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em; text-decoration: none;
  padding: 12px 24px; border-radius: 4px; border: 1px solid transparent; cursor: pointer; transition: all .15s; display: inline-block; }
.btn-primary { background: rgba(5,217,232,0.14); border-color: var(--cyan); color: var(--cyan); }
.btn-primary:hover { background: rgba(5,217,232,0.24); box-shadow: 0 0 18px rgba(5,217,232,0.35); }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--pink); color: var(--pink); }

/* badges */
.badges { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.badge { font-family: var(--code); font-size: 11px; letter-spacing: 0.06em; color: var(--dim);
  border: 1px solid var(--line); border-radius: 3px; padding: 5px 11px; }
.badge b { color: var(--cyan); font-weight: 700; }

/* stats strip */
.stats-strip { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin: 30px 0 6px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 18px 26px; text-align: center; min-width: 130px; }
.stat-val { font-family: var(--sans); font-weight: 900; font-size: 30px; line-height: 1;
  background: linear-gradient(135deg, var(--cyan), var(--pink));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-lbl { font-size: 11px; color: var(--dim); margin-top: 8px; letter-spacing: 0.07em; }

/* sections */
.section { padding: 60px 0; }
.section-sm { padding: 30px 0; }
.section:nth-of-type(even) { background: rgba(255,255,255,0.012); }

/* glass card */
.glass { background: var(--card); border: 1px solid var(--line); border-radius: 10px; backdrop-filter: blur(6px); }

/* grids */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }

.feature-card { padding: 26px; transition: transform .18s, border-color .18s, box-shadow .18s; }
.feature-card:hover { transform: translateY(-3px); border-color: var(--cyan); box-shadow: 0 10px 34px rgba(5,217,232,0.12); }
.feature-card h4 { font-size: 17px; margin-bottom: 10px; }
.feature-card p { color: var(--dim); font-size: 14px; }
.feature-card ul { list-style: none; margin-top: 14px; display: flex; flex-direction: column; gap: 7px; }
.feature-card li { color: var(--text); font-size: 13px; padding-left: 18px; position: relative; }
.feature-card li::before { content: "▸"; color: var(--cyan); position: absolute; left: 0; }
.vp-icon { width: 50px; height: 50px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px; }

/* category cards */
.cat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.cat-card { padding: 24px; text-decoration: none; display: block; transition: transform .18s, border-color .18s, box-shadow .18s; }
.cat-card:hover { transform: translateY(-3px); border-color: var(--cyan); box-shadow: 0 10px 34px rgba(5,217,232,0.12); }
.cat-count { font-family: var(--sans); font-weight: 900; font-size: 34px; line-height: 1;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 10px; }
.cat-card h4 { font-size: 16px; margin-bottom: 8px; }
.cat-card p { color: var(--dim); font-size: 13px; }

/* feature page: accented cards */
.feat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.feat-card { padding: 22px; position: relative; overflow: hidden; transition: transform .18s, border-color .18s, box-shadow .18s; }
.feat-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent, var(--cyan)); opacity: .85; }
.feat-card:hover { transform: translateY(-3px); border-color: var(--accent, var(--cyan)); box-shadow: 0 8px 30px rgba(5,217,232,0.12); }
.feat-card .ic { font-size: 24px; display: block; margin-bottom: 12px; color: var(--accent, var(--cyan)); }
.feat-card h4 { font-size: 15px; margin-bottom: 8px; }
.feat-card p { color: var(--dim); font-size: 13px; }
.c-cyan { --accent: var(--cyan); } .c-pink { --accent: var(--pink); } .c-violet { --accent: var(--violet); }
.c-lime { --accent: var(--lime); } .c-amber { --accent: var(--amber); } .c-yellow { --accent: var(--yellow); }

/* code + inline */
code { font-family: var(--code); font-size: 12px; color: var(--cyan); background: rgba(5,217,232,0.09); padding: 1px 6px; border-radius: 3px; }
pre { background: var(--bg-1); border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; overflow-x: auto; margin: 14px 0; }
pre code { background: none; color: var(--text); padding: 0; font-size: 12.5px; line-height: 1.7; }
.cat-header { margin-bottom: 34px; }

/* tables */
table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid rgba(5,217,232,0.14); }
th { color: var(--cyan); font-weight: 700; letter-spacing: 0.06em; }
td code { font-size: 11.5px; }

/* quote / positioning */
.quote-section { padding: 70px 0; text-align: center; }
.quote-section blockquote { font-family: var(--sans); font-weight: 500; font-size: clamp(20px, 3vw, 28px);
  line-height: 1.4; max-width: 860px; margin: 0 auto; color: #fff; }
.quote-section blockquote .gradient-text { font-weight: 900; }
.quote-section cite { display: block; margin-top: 18px; color: var(--dim); font-size: 14px; font-style: normal; letter-spacing: 0.1em; }

/* callout */
.callout { border-radius: 10px; padding: 26px 28px; margin: 30px 0;
  background: linear-gradient(120deg, rgba(255,42,109,0.06), rgba(177,74,255,0.06)); border: 1px solid rgba(255,42,109,0.28); }
.callout h3 { color: var(--pink); font-size: 16px; margin-bottom: 10px; }
.callout p { color: var(--text); font-size: 14.5px; }
.callout p b { color: #fff; }

/* CTA */
.cta-section { padding: 74px 0; text-align: center; }
.cta-section .glass { padding: 54px 30px; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

/* steps */
.steps { counter-reset: step; display: flex; flex-direction: column; gap: 14px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step::before { counter-increment: step; content: counter(step); flex-shrink: 0;
  width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--cyan); color: var(--cyan);
  display: flex; align-items: center; justify-content: center; font-family: var(--sans); font-weight: 700; font-size: 14px; }
.step div h4 { font-size: 15px; margin-bottom: 4px; }
.step div p { color: var(--dim); font-size: 13.5px; }

/* footer */
.footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 42px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.footer-brand .logo { font-family: var(--sans); font-weight: 900; color: #fff; font-size: 16px; letter-spacing: 0.1em; margin-bottom: 10px; }
.footer-brand .logo .glyph { color: var(--cyan); }
.footer-brand p { color: var(--dim); font-size: 13px; max-width: 340px; }
.footer-col h5 { font-family: var(--sans); font-weight: 500; color: var(--cyan); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 12px; }
.footer-col a { display: block; color: var(--dim); text-decoration: none; font-size: 13px; margin-bottom: 8px; transition: color .15s; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(5,217,232,0.1); color: var(--faint); font-size: 12px; }

/* reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .06s; } .reveal-delay-2 { transition-delay: .12s; } .reveal-delay-3 { transition-delay: .18s; }

@media (max-width: 760px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-2, .cat-cards, .feat-grid { grid-template-columns: 1fr; }
}