/* ============================================================
   HunterOS — landing site styles
   Dark security / terminal aesthetic
   ============================================================ */

:root {
  --bg: #070b0c;
  --bg-alt: #0a1012;
  --panel: #0e1517;
  --panel-2: #111a1d;
  --border: #1c2a2e;
  --border-bright: #2a3f45;
  --text: #d7e2e4;
  --muted: #8aa0a4;
  --muted-dim: #5f7478;
  --accent: #4ade80;      /* neon green */
  --accent-dim: #22c55e;
  --cyan: #22d3ee;
  --amber: #fbbf24;
  --red: #f87171;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo,
    Consolas, "Liberation Mono", monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;

  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1140px;
  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.9);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 1rem; }
a { color: inherit; text-decoration: none; }
code, pre { font-family: var(--mono); }

.accent { color: var(--accent); }
.ok { color: var(--accent); font-weight: 700; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- background layers ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -3;
  background-image:
    linear-gradient(rgba(74, 222, 128, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 222, 128, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
}
.bg-glow {
  position: fixed; z-index: -2; pointer-events: none;
  top: -320px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(circle at center, rgba(34, 197, 94, 0.16), transparent 62%);
}
.scanline {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .35;
  background: repeating-linear-gradient(
    to bottom, transparent 0 3px, rgba(0, 0, 0, 0.16) 3px 4px
  );
  mix-blend-mode: overlay;
}

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(7, 11, 12, 0.78);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-weight: 700; font-size: 1.05rem; }
.brand-mark { color: var(--accent); font-weight: 700; }
.brand-name { letter-spacing: .02em; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: .9rem; transition: color .18s; }
.nav-links a:hover { color: var(--accent); }
.nav-cta { margin-left: 8px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px; border-radius: var(--radius-sm);
  font-family: var(--mono); font-size: .88rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .16s, background .2s, border-color .2s, box-shadow .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent); color: #04120a;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 34px -12px rgba(74, 222, 128, 0.6); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-bright); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ---------- hero ---------- */
.hero { padding: 84px 0 40px; position: relative; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: 54px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .04em;
  color: var(--muted); text-transform: uppercase;
  border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px; margin-bottom: 22px;
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 10px 1px var(--accent); animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: .35 } }
.lede { font-size: 1.12rem; color: var(--muted); max-width: 55ch; }
.hero-actions { display: flex; gap: 14px; margin: 28px 0 20px; flex-wrap: wrap; }
.hero-actions.center { justify-content: center; }
.hero-note { font-family: var(--mono); font-size: .82rem; color: var(--muted-dim); }

/* terminal window */
.hero-term { display: flex; justify-content: center; }
.term-window {
  width: 100%; max-width: 520px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  box-shadow: var(--shadow), 0 0 60px -30px rgba(74, 222, 128, 0.5);
  overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 14px; background: rgba(0,0,0,.35);
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.term-dot.red { background: #ff5f56; } .term-dot.yellow { background: #ffbd2e; } .term-dot.green { background: #27c93f; }
.term-title { margin-left: 10px; font-family: var(--mono); font-size: .76rem; color: var(--muted-dim); }
.term-body {
  margin: 0; padding: 18px 18px 22px; min-height: 300px;
  font-size: .82rem; line-height: 1.75; color: var(--text);
  white-space: pre-wrap; word-break: break-word;
}
.term-body .cmd { color: var(--accent); }
.term-body .lbl { color: var(--cyan); }
.term-body .pass { color: var(--accent); }
.term-body .good { color: var(--accent); }
.term-body .dim { color: var(--muted-dim); }
.cursor { color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0 } }

/* stat strip */
.stat-strip {
  margin-top: 60px;
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.stat { background: var(--bg-alt); padding: 22px 18px; text-align: center; }
.stat-num { display: block; font-family: var(--mono); font-size: 1.9rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: .78rem; color: var(--muted); letter-spacing: .02em; }

/* ---------- sections ---------- */
.section { padding: 92px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,.012), transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 760px; margin-bottom: 48px; }
.kicker { font-family: var(--mono); font-size: .82rem; color: var(--accent); letter-spacing: .06em; margin-bottom: 12px; }
.section-sub { color: var(--muted); font-size: 1.05rem; }

/* feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-alt));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-bright); box-shadow: var(--shadow); }
.card-icon { font-size: 1.5rem; margin-bottom: 14px; }
.card p { color: var(--muted); font-size: .95rem; margin: 0; }

/* capability grid */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cap {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; transition: transform .2s, border-color .2s;
}
.cap:hover { transform: translateY(-4px); border-color: var(--accent-dim); }
.cap-tag {
  display: inline-block; font-family: var(--mono); font-size: .68rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); border: 1px solid var(--border-bright);
  border-radius: 999px; padding: 3px 10px; margin-bottom: 14px;
}
.cap h4 { margin-bottom: 8px; }
.cap p { color: var(--muted); font-size: .86rem; margin: 0; }

/* cli block */
.cli-block { margin-top: 46px; }
.cli {
  background: #060a0b; border: 1px solid var(--border-bright); border-radius: var(--radius);
  padding: 22px 22px; overflow-x: auto; box-shadow: inset 0 0 60px -40px rgba(74,222,128,.6);
}
.cli code { font-size: .84rem; line-height: 1.8; color: var(--text); white-space: pre; }
.cli .prompt { color: var(--accent); }
.cli-note { margin-top: 14px; color: var(--muted); font-size: .9rem; }
.cli-note code { color: var(--accent); background: var(--panel); padding: 1px 6px; border-radius: 6px; font-size: .82rem; }

/* pipeline */
.pipeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.pipe-step {
  display: grid; grid-template-columns: 74px 1fr; align-items: start;
  background: linear-gradient(90deg, var(--panel), var(--bg-alt));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; position: relative; overflow: hidden;
  transition: border-color .2s, transform .2s;
}
.pipe-step::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--accent), transparent);
  opacity: .6;
}
.pipe-step:hover { border-color: var(--border-bright); transform: translateX(4px); }
.pipe-idx { font-family: var(--mono); font-size: 1.55rem; font-weight: 700; color: var(--accent); opacity: .85; }
.pipe-body h3 { margin-bottom: 6px; }
.pipe-body p { margin: 0; color: var(--muted); font-size: .95rem; }

/* ai passes */
.pass-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pass {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; position: relative; overflow: hidden;
}
.pass::after {
  content: ""; position: absolute; top: -40%; right: -30%;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34,197,94,.14), transparent 70%);
}
.pass-num { font-family: var(--mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); }
.pass h3 { margin: 10px 0 8px; }
.pass p { color: var(--muted); font-size: .92rem; margin: 0; }
.pass-note { margin-top: 26px; text-align: center; color: var(--muted); font-family: var(--mono); font-size: .9rem; }

/* brain */
.brain-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 56px; align-items: center; }
.brain-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.brain-list li {
  color: var(--muted); font-size: .95rem; padding-left: 24px; position: relative;
}
.brain-list li::before {
  content: "▸"; position: absolute; left: 0; color: var(--accent); font-family: var(--mono);
}
.brain-list strong { color: var(--text); }
.brain-visual { position: relative; height: 340px; }
.kb-node {
  position: absolute; font-family: var(--mono); font-size: .78rem;
  background: var(--panel); border: 1px solid var(--border-bright);
  border-radius: 999px; padding: 9px 16px; color: var(--text); white-space: nowrap;
  box-shadow: var(--shadow);
}
.kb-core {
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  color: var(--accent); border-color: var(--accent-dim); font-weight: 700; font-size: .85rem;
  box-shadow: 0 0 44px -10px rgba(74,222,128,.6);
}
.n1 { top: 6%; left: 6%; } .n2 { top: 8%; right: 6%; } .n3 { bottom: 8%; left: 4%; }
.n4 { bottom: 6%; right: 8%; } .n5 { top: 48%; left: -4%; }
.kb-line { position: absolute; top: 50%; left: 50%; height: 1px; width: 120px; background: linear-gradient(90deg, var(--border-bright), transparent); transform-origin: left center; opacity: .5; }
.l1 { transform: rotate(-160deg); } .l2 { transform: rotate(-25deg); }
.l3 { transform: rotate(150deg); } .l4 { transform: rotate(20deg); } .l5 { transform: rotate(180deg); }

/* ethics */
.ethics {
  background: linear-gradient(135deg, rgba(74,222,128,.05), rgba(34,211,238,.03));
  border: 1px solid var(--border-bright); border-radius: var(--radius);
  padding: 46px; display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center;
}
.ethics-head p { color: var(--muted); margin-bottom: 0; }
.ethics-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.ethics-list li { display: flex; gap: 12px; font-size: .93rem; color: var(--muted); align-items: flex-start; }
.ethics-list .ok { flex: 0 0 auto; }

/* cta */
.cta-section { text-align: center; }
.cta { max-width: 720px; margin: 0 auto; }
.cta p { color: var(--muted); font-size: 1.08rem; }
.cta h2 { margin-bottom: 14px; }

/* footer */
.footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 20px; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.footer-note { color: var(--muted); font-size: .86rem; margin: 0; }
.footer-copy { color: var(--muted-dim); font-size: .8rem; font-family: var(--mono); margin: 0; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .eyebrow .dot, .cursor { animation: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .pass-grid { grid-template-columns: 1fr; }
  .brain-grid { grid-template-columns: 1fr; gap: 30px; }
  .brain-visual { height: 300px; }
  .ethics { grid-template-columns: 1fr; gap: 28px; padding: 32px; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding-top: 56px; }
  .section { padding: 64px 0; }
  .feature-grid, .cap-grid { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr; }
  .pipe-step { grid-template-columns: 1fr; gap: 6px; }
  .term-body { min-height: 260px; font-size: .76rem; }
}