/* ============================================================
   ZER0DAY R&D — SIGINT console × editorial tech
   ============================================================ */

:root {
  /* Palette */
  --bg:            #0a0b10;
  --bg-deep:       #05060a;
  --surface:       #10141c;
  --surface-alt:   #161b26;
  --surface-hi:    #1c2432;
  --border:        #1e2636;
  --border-bright: #2d3a52;
  --text:          #e6ebf5;
  --muted:         #7d8a9f;
  --faint:         #4a5468;

  /* Accents */
  --cyan:          #00e5ff;
  --cyan-soft:     #6df2ff;
  --cyan-dim:      #0096a8;
  --cyan-glow:     rgba(0, 229, 255, 0.4);
  --amber:         #ffb347;
  --amber-glow:    rgba(255, 179, 71, 0.3);
  --magenta:       #ff2d95;
  --red:           #ff4d6d;

  /* Type */
  --display:       "Chakra Petch", ui-sans-serif, system-ui, sans-serif;
  --mono:          "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --editorial:     "Fraunces", "Iowan Old Style", Georgia, serif;

  /* Rhythm */
  --gutter: 2rem;
  --max:    1280px;
  --ease:   cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* === Atmospheric overlays === */

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(255, 255, 255, 0.008) 3px,
    rgba(255, 255, 255, 0.008) 3px
  );
  mix-blend-mode: overlay;
}

.grain {
  position: fixed;
  inset: -50%;
  pointer-events: none;
  z-index: 3;
  opacity: 0.035;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .5 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 180px;
  animation: grain-shift 8s steps(8) infinite;
}

@keyframes grain-shift {
  0%   { transform: translate(0,0); }
  25%  { transform: translate(-3%, 2%); }
  50%  { transform: translate(2%, -3%); }
  75%  { transform: translate(-2%, -2%); }
  100% { transform: translate(0,0); }
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 20%, rgba(0,0,0,0.95) 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 20%, rgba(0,0,0,0.95) 0%, transparent 75%);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 120vw;
  height: 70vh;
  z-index: 0;
  background:
    radial-gradient(ellipse at 25% 40%, rgba(0, 229, 255, 0.07), transparent 55%),
    radial-gradient(ellipse at 75% 30%, rgba(255, 45, 149, 0.04), transparent 55%),
    radial-gradient(ellipse at 50% 80%, rgba(255, 179, 71, 0.03), transparent 50%);
  filter: blur(60px);
  pointer-events: none;
}

main, .site-header, .site-footer, .status-bar { position: relative; z-index: 5; }

/* === Typography === */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin: 0 0 0.5em;
  color: var(--text);
}

h1 {
  font-size: clamp(2.4rem, 6.2vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}
h2 {
  font-size: clamp(1.8rem, 3.8vw, 3rem);
  font-weight: 600;
}
h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

p { margin: 0 0 1em; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.18s var(--ease), text-shadow 0.18s var(--ease);
}
a:hover { color: var(--cyan-soft); text-shadow: 0 0 18px var(--cyan-glow); }

::selection { background: var(--cyan); color: var(--bg-deep); }

/* === Status bar === */

.status-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.status-bar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.45rem var(--gutter);
  display: flex;
  gap: 1.75rem;
  align-items: center;
  white-space: nowrap;
  overflow: hidden;
}
.status-item { display: inline-flex; align-items: center; gap: 0.45rem; }
.status-marker {
  margin-left: auto;
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 0.1rem 0.55rem;
  letter-spacing: 0.18em;
  font-size: 0.62rem;
}

.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}
.dot-live {
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  animation: pulse 1.8s var(--ease) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.75); }
}

@media (max-width: 780px) {
  .status-hide-sm { display: none; }
  .status-bar-inner { gap: 1rem; }
}

/* === Header / nav === */

.site-header {
  position: sticky;
  top: 28px;
  z-index: 55;
  background: rgba(10, 11, 16, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.09em;
  color: var(--text);
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  text-transform: uppercase;
}
.brand:hover { text-shadow: none; color: var(--text); }
.brand-mark { color: var(--text); }
.brand-zero {
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan-glow);
  font-weight: 700;
  position: relative;
  display: inline-block;
}
.brand-zero::after {
  content: "";
  position: absolute;
  left: 0.08em;
  right: 0.08em;
  top: 50%;
  height: 0.085em;
  background: var(--cyan);
  transform: translateY(-50%) rotate(-22deg);
  border-radius: 1px;
  box-shadow: 0 0 6px var(--cyan-glow);
  pointer-events: none;
}
.brand-sub {
  color: var(--cyan);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  padding-left: 0.6rem;
  margin-left: 0.55rem;
  border-left: 1px solid var(--border-bright);
  align-self: stretch;
  display: inline-flex;
  align-items: center;
}

.nav-links { display: flex; gap: 1.6rem; }
.nav-links a {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  padding-bottom: 2px;
}
.nav-links a:hover { color: var(--text); text-shadow: none; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-num {
  color: var(--faint);
  font-weight: 400;
  margin-right: 0.4rem;
  font-size: 0.72rem;
}

@media (max-width: 860px) {
  .nav-links { gap: 1rem; }
  .nav-links a { font-size: 0.7rem; }
  .nav-num { display: none; }
}
@media (max-width: 600px) {
  .nav { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .nav-links { flex-wrap: wrap; }
}

/* === Layout primitives === */

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.wrap-narrow { max-width: 960px; margin: 0 auto; padding: 0 var(--gutter); }

.section {
  padding: 8rem 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--cyan);
}

.section-intro {
  max-width: 720px;
  margin-bottom: 4rem;
}
.section-intro h2 { margin-bottom: 1rem; }
.section-intro p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* === HERO === */

.hero {
  position: relative;
  padding: 10rem 0 7rem;
  overflow: hidden;
  min-height: 95vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-copy { position: relative; z-index: 2; }

.hero-bracket {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
}
.hero-bracket::before, .hero-bracket::after {
  content: "";
  height: 1px;
  background: var(--border-bright);
}

.hero h1 {
  margin-bottom: 1.75rem;
  max-width: 16ch;
}
.hero h1 .accent {
  color: var(--cyan);
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.hero h1 .block {
  display: block;
}

.hero-lead {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 52ch;
  margin-bottom: 2.5rem;
}

.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.22s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn .btn-arrow { transition: transform 0.22s var(--ease); display: inline-block; }
.btn:hover .btn-arrow { transform: translateX(4px); }

.btn.primary {
  background: var(--cyan);
  color: var(--bg-deep);
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 0 30px rgba(0, 229, 255, 0.25);
}
.btn.primary:hover {
  background: var(--cyan-soft);
  border-color: var(--cyan-soft);
  color: var(--bg-deep);
  text-shadow: none;
  box-shadow: 0 0 0 1px var(--cyan-soft), 0 0 40px rgba(0, 229, 255, 0.5);
  transform: translateY(-1px);
}

.btn.ghost {
  background: transparent;
  border-color: var(--border-bright);
  color: var(--text);
}
.btn.ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  text-shadow: none;
}

/* Hero topology canvas */
.hero-topology {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--border);
  background: linear-gradient(140deg, var(--surface) 0%, var(--surface-alt) 100%);
  overflow: hidden;
  border-radius: 2px;
}
.hero-topology::before, .hero-topology::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--cyan);
}
.hero-topology::before {
  top: -1px; left: -1px;
  border-right: none;
  border-bottom: none;
}
.hero-topology::after {
  bottom: -1px; right: -1px;
  border-left: none;
  border-top: none;
}
#topology-canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.topology-meta {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  right: 0.85rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  pointer-events: none;
}
.topology-meta .live { color: var(--cyan); display: inline-flex; align-items: center; gap: 0.4rem; }
.topology-caption {
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.85rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  pointer-events: none;
  display: flex;
  justify-content: space-between;
}

/* Hero stats strip below */
.hero-stats {
  max-width: var(--max);
  margin: 6rem auto 0;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat {
  padding: 1.5rem 1.25rem;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.stat-num .unit { color: var(--cyan); font-size: 1rem; margin-left: 0.15rem; }
.stat-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-topology { max-width: 460px; margin: 0 auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
}

/* === CAPABILITIES (dossier rows) === */

.dossier {
  border-top: 1px solid var(--border);
}
.dossier-row {
  display: grid;
  grid-template-columns: 80px 1fr 2.4fr 1.2fr;
  gap: 2rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.25s var(--ease), padding 0.25s var(--ease);
  position: relative;
}
.dossier-row:hover {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.03), transparent 70%);
  padding-left: 1rem;
}
.dossier-row::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s var(--ease);
}
.dossier-row:hover::before { transform: scaleY(1); }

.dossier-code {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding-top: 0.3rem;
}
.dossier-title h3 {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.core-mark {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  padding: 0.15rem 0.5rem;
  background: rgba(0, 229, 255, 0.06);
  line-height: 1.4;
}
.dossier-title p {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.dossier-body {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
}
.dossier-tags {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-end;
}
.tag {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border-bright);
  padding: 0.28rem 0.6rem;
  background: var(--surface);
}

@media (max-width: 900px) {
  .dossier-row {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }
  .dossier-body { grid-column: 2; }
  .dossier-tags {
    grid-column: 2;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
  }
}

/* === PROCESS === */

.process {
  background: var(--surface-alt);
}
.process-stages {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin-top: 3rem;
  position: relative;
}
.process-stages::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-dim) 10%, var(--cyan-dim) 90%, transparent);
}
.stage {
  position: relative;
  padding: 0 1rem;
  text-align: left;
}
.stage-node {
  width: 14px;
  height: 14px;
  border: 2px solid var(--cyan);
  background: var(--bg);
  border-radius: 50%;
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 2;
  margin-left: 0;
  transition: box-shadow 0.3s var(--ease);
}
.stage:hover .stage-node {
  box-shadow: 0 0 0 4px rgba(0, 229, 255, 0.15), 0 0 20px var(--cyan-glow);
}
.stage-num {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--faint);
  margin-bottom: 0.5rem;
}
.stage h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.stage p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 900px) {
  .process-stages {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .process-stages::before {
    left: 7px;
    right: auto;
    top: 0;
    bottom: 0;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, transparent, var(--cyan-dim) 10%, var(--cyan-dim) 90%, transparent);
  }
  .stage {
    padding-left: 2.5rem;
    position: relative;
  }
  .stage-node { position: absolute; left: 0; top: 6px; margin: 0; }
}

/* === DOCTRINE (editorial break) === */

.doctrine {
  padding: 10rem 0;
  position: relative;
  background: var(--bg-deep);
  overflow: hidden;
}
.doctrine::before {
  content: "PRACTICE";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(8rem, 22vw, 22rem);
  color: rgba(0, 229, 255, 0.025);
  letter-spacing: -0.05em;
  pointer-events: none;
  white-space: nowrap;
  z-index: 1;
}
.doctrine-inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.practice-heading {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--text);
  margin: 0 0 1.5rem;
  max-width: 22ch;
}
.practice-accent {
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
  color: var(--cyan);
}
.practice-lede {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 68ch;
  margin: 0 0 2.5rem;
}

.tenets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border);
}
.tenet-num {
  font-family: var(--display);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.tenet h4 {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tenet p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

/* === ENGAGEMENTS === */

.engagements .wrap { position: relative; }

.engagement-card {
  display: block;
  position: relative;
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: all 0.25s var(--ease);
  overflow: hidden;
}
.engagement-card:hover {
  color: var(--text);
  border-color: var(--border-bright);
  text-shadow: none;
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 229, 255, 0.15);
}
.engagement-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.engagement-card:hover::before { transform: scaleX(1); }

.engagement-meta {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
}
.engagement-meta .classification { color: var(--amber); }
.engagement-card h3 {
  font-family: var(--display);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.005em;
}
.engagement-card p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.engagement-more {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.engagement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.5rem;
}

.engagement-empty {
  padding: 3rem 2rem;
  border: 1px dashed var(--border-bright);
  background: var(--surface);
  text-align: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.engagement-empty .empty-code {
  color: var(--amber);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 0.75rem;
}

/* === SIGNAL (contact) === */

.signal {
  padding: 10rem 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  position: relative;
  overflow: hidden;
}

.signal-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 var(--gutter);
  text-align: center;
  position: relative;
  z-index: 2;
}
.signal h2 {
  font-size: clamp(2rem, 4.8vw, 3.5rem);
  margin-bottom: 1.25rem;
}
.signal h2 .accent {
  font-family: var(--editorial);
  font-style: italic;
  color: var(--cyan);
  font-weight: 400;
}
.signal-lead {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 60ch;
  margin: 0 auto 2.5rem;
}

.transmission {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border-bright);
  padding: 1.5rem;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.9rem;
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.08);
  position: relative;
}
.transmission::before {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid var(--cyan);
  opacity: 0.25;
  pointer-events: none;
}
.transmission-header {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.transmission-header .live { color: var(--cyan); display: inline-flex; align-items: center; gap: 0.4rem; }
.transmission-body { line-height: 1.9; }
.transmission-body .prompt { color: var(--cyan); font-weight: 600; }
.transmission-body .output { color: var(--muted); }
.transmission-body .output a { color: var(--text); font-weight: 500; }
.transmission-body .output a:hover { color: var(--cyan); }
.transmission-body .cursor {
  display: inline-block;
  width: 9px;
  height: 1.1em;
  background: var(--cyan);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* === Engagement article page === */

.engagement-article {
  padding: 7rem 0 5rem;
}
.engagement-article .eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.engagement-article h1 {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  margin: 1rem 0 1.5rem;
}
.engagement-article .lead {
  font-size: 1.15rem;
  color: var(--muted);
  line-height: 1.65;
  max-width: 66ch;
}
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  margin: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.meta-grid > div {
  padding: 1.25rem 1.5rem;
  border-right: 1px solid var(--border);
}
.meta-grid > div:last-child { border-right: none; }
.meta-grid dt {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.meta-grid dd { margin: 0; color: var(--text); font-weight: 500; }

.engagement-body {
  max-width: 72ch;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--text);
}
.engagement-body h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  border-left: 2px solid var(--cyan);
  padding-left: 1rem;
}
.engagement-body ul { padding-left: 1.2rem; color: var(--muted); }
.engagement-body blockquote {
  border-left: 2px solid var(--magenta);
  padding: 0.5rem 1.25rem;
  color: var(--muted);
  font-style: italic;
  margin: 2rem 0;
  font-family: var(--editorial);
  font-size: 1.1rem;
}
.engagement-body code {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.1rem 0.4rem;
  color: var(--cyan);
  font-size: 0.88em;
}

.back {
  margin-top: 4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* === Footer === */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
  font-family: var(--mono);
  color: var(--muted);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--magenta), transparent);
  opacity: 0.4;
}

.footer-cta {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem var(--gutter) 4rem;
  text-align: center;
}
.footer-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 1rem;
}
.footer-headline {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 0 0 2rem;
}

.footer-base {
  border-top: 1px solid var(--border);
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.footer-sig {
  font-family: var(--editorial);
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  color: var(--cyan-dim);
  font-size: 0.88rem;
}

@media (max-width: 600px) {
  .footer-base {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

.footer-attribution {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--gutter) 1.5rem;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--faint);
  border-top: 1px solid var(--border);
}
.footer-attribution a {
  color: var(--muted);
  border-bottom: 1px dotted var(--border-bright);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.footer-attribution a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  text-shadow: none;
}
.footer-attribution .heart {
  display: inline-block;
  animation: heart-pulse 2.4s ease-in-out infinite;
  font-style: normal;
}
@keyframes heart-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.18); }
}

/* === Scroll reveal === */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

/* === Scrollbar === */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: var(--border-bright);
  border: 2px solid var(--bg-deep);
  border-radius: 0;
}
::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }

/* === Reduced motion === */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}