/* DARKHOOK — the programmable privacy hook layer for onchain markets */

:root {
  /* Palette from the DARKHOOK logo: pure black, silver, violet ("HOOK"), electric-blue beam. */
  --bg: #000000;
  --bg-2: #07070c;
  --panel: #0b0a12;
  --line: #1c1a2b;
  --text: #e2dfe6;
  --dim: #8c88a3;
  --acid: #9062d7;      /* primary accent — the violet of "HOOK" */
  --acid-hi: #a57ceb;
  --on-acid: #ffffff;
  --violet: #7f8cf0;    /* secondary — the electric-blue beam */
  --cyan: #a9b6ff;      /* tertiary — icy highlight */
  --danger: #ff4d6d;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--acid); color: var(--on-acid); }

a { color: inherit; text-decoration: none; }

.wrap { width: min(1120px, 92vw); margin: 0 auto; }

/* ---------- nav ---------- */
nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 60px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: 0.32em;
  font-size: 14px;
  color: var(--text);
}
.logo img { width: 30px; height: 30px; border-radius: 7px; mix-blend-mode: screen; }
.logo .spark { color: var(--acid); }
/* The logo is drawn on pure black: "screen" turns that black transparent over any background. */
.hero-logo { display: block; width: min(440px, 80vw); height: auto; margin: 0 0 34px -18px; mix-blend-mode: screen; }
.nav-links { display: flex; gap: 22px; font-size: 13.5px; color: var(--dim); }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  border: 1px solid var(--acid);
  color: var(--acid);
  padding: 7px 14px;
  border-radius: 6px;
  transition: 0.18s;
}
.nav-cta:hover { background: var(--acid); color: var(--on-acid); }

/* ---------- hero ---------- */
header {
  padding: 150px 0 90px;
  position: relative;
  background:
    radial-gradient(900px 420px at 15% -10%, rgba(127, 140, 240, 0.16), transparent 60%),
    radial-gradient(700px 380px at 90% 10%, rgba(144, 98, 215, 0.08), transparent 60%);
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 22px;
}
h1 {
  font-family: var(--mono);
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 800;
}
h1 .glow {
  color: var(--acid);
  text-shadow: 0 0 34px rgba(144, 98, 215, 0.35);
}
.lede {
  margin-top: 26px;
  max-width: 640px;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--dim);
}
.lede strong { color: var(--text); font-weight: 600; }
.cta-row { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.cta-row.center { justify-content: center; }
.btn {
  font-family: var(--mono);
  font-size: 14px;
  padding: 13px 22px;
  border-radius: 8px;
  border: 1px solid var(--line);
  transition: 0.18s;
  cursor: pointer;
}
.btn.primary { background: var(--acid); color: var(--on-acid); border-color: var(--acid); font-weight: 700; }
.btn.primary:hover { box-shadow: 0 0 28px rgba(144, 98, 215, 0.45); transform: translateY(-1px); }
.btn.ghost:hover { border-color: var(--violet); color: var(--violet); }
.taglines { margin-top: 44px; display: flex; gap: 10px; flex-wrap: wrap; }
.tag {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  border: 1px dashed var(--line);
  padding: 8px 14px;
  border-radius: 999px;
}
.tag b { color: var(--acid); font-weight: 600; }
.ca {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  margin-top: 22px;
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  overflow-wrap: anywhere;
  text-align: left;
}
.ca[hidden] { display: none; }
.ca:hover { border-color: var(--acid); }
.ca b, .ca i { flex-shrink: 0; white-space: nowrap; }
.ca b { color: var(--acid); font-weight: 600; }
.ca i { font-style: normal; color: var(--dim); font-size: 11.5px; }

/* ---------- terminal ---------- */
.terminal {
  margin-top: 64px;
  background: #0a0a10;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.term-title { margin-left: 8px; }
.term-body {
  font-family: var(--mono);
  font-size: 13.5px;
  padding: 20px 22px 26px;
  min-height: 250px;
  line-height: 1.85;
}
.term-body .line { opacity: 0; transform: translateY(4px); transition: 0.35s; white-space: pre-wrap; }
.term-body .line.on { opacity: 1; transform: none; }
.c-dim { color: #56566e; }
.c-acid { color: var(--acid); }
.c-violet { color: var(--violet); }
.c-cyan { color: var(--cyan); }
.c-danger { color: var(--danger); }
.c-white { color: var(--text); }

/* ---------- sections ---------- */
section { padding: 96px 0; border-top: 1px solid var(--line); }
.sec-head { max-width: 720px; margin-bottom: 54px; }
.sec-kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--acid);
  margin-bottom: 14px;
}
h2 {
  font-family: var(--mono);
  font-size: clamp(28px, 3.6vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.sec-head p { margin-top: 16px; color: var(--dim); font-size: 16.5px; }

/* three pillars */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: 0.2s;
}
.card:hover { border-color: color-mix(in srgb, var(--acid) 45%, var(--line)); transform: translateY(-3px); }
.card .idx {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--violet);
  letter-spacing: 0.16em;
}
.card h3 { font-family: var(--mono); font-size: 19px; margin: 14px 0 10px; }
.card p { color: var(--dim); font-size: 14.5px; }
.card .glyph {
  position: absolute;
  right: -8px;
  bottom: -18px;
  font-family: var(--mono);
  font-size: 92px;
  font-weight: 800;
  color: color-mix(in srgb, var(--acid) 7%, transparent);
  pointer-events: none;
}

/* flow */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: step; }
.step {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 18px;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--acid);
}
.step h4 { font-family: var(--mono); font-size: 15px; margin: 12px 0 8px; }
.step p { font-size: 13.4px; color: var(--dim); }
.step .st {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  padding: 3px 8px;
  border-radius: 4px;
}
.st.hidden { background: rgba(127, 140, 240, 0.18); color: var(--violet); }
.st.revealed { background: rgba(169, 182, 255, 0.14); color: var(--cyan); }
.st.enforced { background: rgba(144, 98, 215, 0.12); color: var(--acid); }

/* mask widget */
.mask-lay { display: grid; grid-template-columns: 1.2fr 1fr; gap: 30px; align-items: start; }
.bits { display: grid; gap: 10px; }
.bit {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 16px;
  cursor: pointer;
  transition: 0.15s;
  user-select: none;
}
.bit:hover { border-color: #2c2c42; }
.bit.on { border-color: var(--acid); background: rgba(144, 98, 215, 0.05); }
.bit .sw {
  width: 34px; height: 19px;
  border-radius: 999px;
  background: #23233a;
  position: relative;
  flex: 0 0 auto;
  transition: 0.15s;
}
.bit .sw::after {
  content: "";
  position: absolute;
  top: 2.5px; left: 3px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: #6b6b8a;
  transition: 0.15s;
}
.bit.on .sw { background: rgba(144, 98, 215, 0.25); }
.bit.on .sw::after { left: 17px; background: var(--acid); }
.bit .lbl { font-family: var(--mono); font-size: 13.5px; }
.bit .val { margin-left: auto; font-family: var(--mono); font-size: 12px; color: var(--dim); }
.mask-out {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  font-family: var(--mono);
}
.mask-num { font-size: 64px; font-weight: 800; color: var(--acid); line-height: 1; }
.mask-bits { font-size: 15px; color: var(--violet); letter-spacing: 0.18em; margin-top: 10px; }
.mask-verdict {
  margin-top: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--dim);
  border-top: 1px dashed var(--line);
  padding-top: 16px;
}
.mask-verdict b { color: var(--text); }
.preset-row { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.preset {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--dim);
  cursor: pointer;
  transition: 0.15s;
  background: none;
}
.preset:hover { color: var(--acid); border-color: var(--acid); }

/* code tabs */
.tabs { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--bg-2); }
.tab-bar { display: flex; border-bottom: 1px solid var(--line); }
.tab-btn {
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 13px 20px;
  color: var(--dim);
  background: none;
  border: none;
  border-right: 1px solid var(--line);
  cursor: pointer;
}
.tab-btn.active { color: var(--acid); background: rgba(144, 98, 215, 0.05); }
.tab-pane { display: none; padding: 24px; overflow-x: auto; }
.tab-pane.active { display: block; }
.tab-pane pre {
  font-family: var(--mono);
  font-size: 12.8px;
  line-height: 1.7;
  color: #b9b9cf;
  white-space: pre;
}
.k { color: var(--violet); } .s { color: var(--acid); } .f { color: var(--cyan); } .c { color: #56566e; }

/* stats strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.stat .v { font-family: var(--mono); font-size: 26px; font-weight: 700; color: var(--text); }
.stat .l { font-size: 12.5px; color: var(--dim); margin-top: 6px; }
.stat .mono { font-family: var(--mono); font-size: 11px; color: var(--cyan); word-break: break-all; }

/* zerohook band */
.zband {
  background:
    linear-gradient(120deg, rgba(127, 140, 240, 0.14), rgba(169, 182, 255, 0.07) 55%, transparent),
    var(--bg-2);
}
.zband .inner { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.zkicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  margin-bottom: 16px;
}
.ztitle { font-family: var(--mono); font-size: clamp(30px, 4vw, 52px); font-weight: 800; letter-spacing: -0.02em; }
.ztitle em { font-style: normal; color: var(--cyan); text-shadow: 0 0 30px rgba(169, 182, 255, 0.4); }
.zsub { color: var(--dim); margin-top: 18px; font-size: 16.5px; max-width: 520px; }
.zlines { font-family: var(--mono); font-size: 15px; line-height: 2.2; color: var(--text); }
.zlines span { color: var(--cyan); }

footer { padding: 60px 0 70px; border-top: 1px solid var(--line); }
.foot-in { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: flex-start; }
.foot-note { color: var(--dim); font-size: 13px; max-width: 560px; margin-top: 10px; }
.foot-links { display: flex; gap: 18px; font-family: var(--mono); font-size: 13px; color: var(--dim); }
.foot-links a:hover { color: var(--acid); }

@media (max-width: 900px) {
  .grid-3, .flow, .stats { grid-template-columns: 1fr; }
  .mask-lay, .zband .inner { grid-template-columns: 1fr; }
  .nav-links a:not([data-social]) { display: none; }
  .nav-links { gap: 14px; }
  .nav-cta { white-space: nowrap; }
}