:root {
  --bg: #000000;
  --panel: #0c0c10;
  --panel-2: #111118;
  --panel-light: #f5f5f7;
  --ink: #f5f5f7;
  --ink-dim: #86868b;
  --ink-mid: #b8b8c2;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #2bf0c8;
  --accent-2: #5aa9ff;
  --warm: #ffc15c;
  --grad-orb:
    radial-gradient(circle at 35% 30%, #6ee7d3 0%, transparent 45%),
    radial-gradient(circle at 70% 60%, #4a6bff 0%, transparent 55%),
    radial-gradient(circle at 50% 80%, #ff5a7a 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, #1a1a2e 0%, #000 80%);
  --radius: 22px;
  --radius-lg: 28px;
  --container: 1280px;
  --display: "Inter Tight", -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow: 1.2s;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  font-weight: 400;
  font-size: 17px;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}
::selection { background: rgba(43, 240, 200, 0.25); color: #fff; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

#neuro-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}
.nav, main, footer { position: relative; z-index: 1; }
body::before, body::after { display: none; }

/* NAV — slim translucent Apple-style */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease-soft);
}
.nav.scrolled { background: rgba(0, 0, 0, 0.85); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.015em;
}
.brand-mark svg { transition: transform 0.8s var(--ease); }
.brand:hover .brand-mark svg { transform: rotate(60deg); }
.brand-text strong { color: #fff; font-weight: 700; }
.brand-text { color: var(--ink-dim); font-weight: 400; }

.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  color: var(--ink-mid);
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: -0.005em;
  transition: color 0.3s var(--ease-soft);
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink) !important;
  background: rgba(255, 255, 255, 0.04);
  font-size: 13px !important;
  font-weight: 500 !important;
  transition: background 0.3s var(--ease-soft), border-color 0.3s;
}
.nav-cta:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--ink-mid); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  width: 40px; height: 40px;
  flex-direction: column; gap: 4px;
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-toggle span { width: 16px; height: 1.5px; background: var(--ink); display: block; }

/* HERO — Apple-style centered, generous whitespace */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  min-height: 92vh;
  overflow: hidden;
  background: var(--bg);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg-img {
  display: none;
}
.hero-bg-grad {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1000px 600px at 50% -10%, rgba(74,107,255,0.25), transparent 60%),
    radial-gradient(800px 600px at 20% 50%, rgba(43,240,200,0.12), transparent 60%),
    radial-gradient(800px 600px at 80% 50%, rgba(255,90,122,0.1), transparent 60%);
}
.hero-bg-noise {
  position: absolute;
  inset: 0;
  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='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.04 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.5;
  mix-blend-mode: overlay;
}

.hero-inner { max-width: 980px; position: relative; z-index: 1; text-align: center; }
.hero-center .eyebrow { margin: 0 auto; }

.eyebrow {
  display: inline-block;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid rgba(43,240,200,0.25);
  border-radius: 999px;
  background: rgba(43,240,200,0.04);
  text-transform: none;
}
.shimmer::after { display: none; }

.hero-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(56px, 9vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.045em;
  margin: 28px 0 24px;
  color: var(--ink);
}
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  animation: wordIn 1.1s var(--ease) forwards;
}
.hero-title .word:nth-child(1) { animation-delay: 0.05s; }
.hero-title .word:nth-child(3) { animation-delay: 0.2s; }
.hero-title .word:nth-child(4) { animation-delay: 0.35s; }
.hero-title .word + .word { margin-left: 0.22em; }
@keyframes wordIn { to { opacity: 1; transform: none; } }

.accent {
  background: linear-gradient(135deg, #6ee7d3 0%, #5aa9ff 50%, #ff5a7a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.gradient-text { background: linear-gradient(135deg, #6ee7d3, #5aa9ff 60%, #ff5a7a); -webkit-background-clip: text; background-clip: text; color: transparent; }

.lede {
  font-family: var(--sans);
  font-weight: 400;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.4;
  color: var(--ink-mid);
  max-width: 580px;
  margin: 0 auto;
  letter-spacing: -0.01em;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.55s forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14.5px;
  font-family: var(--sans);
  letter-spacing: -0.005em;
  transition: transform 0.3s var(--ease), background 0.3s, box-shadow 0.3s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn svg { transition: transform 0.4s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary {
  background: var(--ink);
  color: #000;
}
.btn-primary:hover { background: #fff; transform: translateY(-1px); box-shadow: 0 12px 30px rgba(255,255,255,0.15); }
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: rgba(255,255,255,0.04);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: var(--ink-mid); }

/* Lead form pill */
.lead-form {
  display: flex;
  gap: 6px;
  margin: 36px auto 12px;
  max-width: 460px;
  padding: 6px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.8s forwards;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
.lead-form:focus-within {
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.lead-form input[type="email"] {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--ink);
  padding: 12px 18px;
  font-family: var(--sans);
  font-size: 14.5px;
  outline: none;
  letter-spacing: -0.005em;
}
.lead-form input[type="email"]::placeholder { color: var(--ink-dim); }
.lead-form .btn { padding: 11px 20px; white-space: nowrap; }

.form-meta {
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink-dim);
  margin: 14px 0 0;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.95s forwards;
}

/* Hero abstract orb (reactive: --orb-h1/2/3 driven by JS) */
.hero-orb {
  --orb-h1: 165;
  --orb-h2: 225;
  --orb-h3: 345;
  position: relative;
  width: clamp(280px, 36vw, 460px);
  aspect-ratio: 1;
  margin: 56px auto 0;
  opacity: 0;
  animation: fadeUp 1.4s var(--ease) 1.1s forwards;
}
.orb-core {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, hsl(var(--orb-h1) 85% 65%) 0%, transparent 45%),
    radial-gradient(circle at 70% 60%, hsl(var(--orb-h2) 85% 60%) 0%, transparent 55%),
    radial-gradient(circle at 50% 80%, hsl(var(--orb-h3) 85% 65%) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, #1a1a2e 0%, #000 80%);
  filter: blur(2px) saturate(150%);
  animation: orbFloat 8s ease-in-out infinite;
  transition: background 0.6s var(--ease-soft);
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.orb-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, hsl(var(--orb-h2) 80% 55% / 0.5), transparent 65%);
  filter: blur(40px);
  opacity: 0.7;
  animation: orbFloat 8s ease-in-out infinite;
  transition: background 0.6s var(--ease-soft);
}
.orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid hsl(var(--orb-h1) 80% 70% / 0.12);
  animation: spin 60s linear infinite;
  transition: border-color 0.6s var(--ease-soft);
}
.orb-ring-2 { inset: -8%; border-color: hsl(var(--orb-h2) 80% 70% / 0.2); animation-duration: 80s; animation-direction: reverse; }
.orb-ring-3 { inset: -16%; border-color: hsl(var(--orb-h3) 80% 70% / 0.15); animation-duration: 120s; }
@keyframes spin { to { transform: rotate(360deg); } }

.hero-proof {
  display: flex;
  gap: 56px;
  justify-content: center;
  margin: 64px auto 0;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 1.3s forwards;
}
.hero-proof div { display: flex; flex-direction: column; align-items: center; }
.hero-proof strong {
  font-family: var(--display);
  font-weight: 700;
  font-size: 44px;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
  background: none;
  -webkit-text-fill-color: var(--ink);
}
.hero-proof span {
  font-size: 12.5px;
  color: var(--ink-dim);
  margin-top: 8px;
  font-family: var(--sans);
  font-weight: 400;
  letter-spacing: 0;
}

.scroll-cue { display: none; }
.marquee { display: none; }

/* ==== APPLE-STYLE TILES ==== */
.tiles {
  max-width: var(--container);
  margin: 24px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tile-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.tile-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--panel);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 580px;
  border: 1px solid var(--line);
  transition: transform 0.6s var(--ease), border-color 0.4s;
}
.tile-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.tile-feature { min-height: 720px; }
.tile-half { min-height: 520px; }
.tile-content {
  padding: 56px 56px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}
.tile-eyebrow {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--accent);
  margin-bottom: 12px;
}
.tile-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  color: var(--ink);
}
.tile-title-md {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  margin: 0 0 14px;
  color: var(--ink);
}
.tile-sub {
  color: var(--ink-mid);
  font-size: 17px;
  font-weight: 400;
  max-width: 520px;
  margin: 0 auto;
  letter-spacing: -0.005em;
  line-height: 1.5;
}
.tile-visual {
  flex: 1;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}
.tile-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(110%) contrast(105%);
  transition: transform 1.4s var(--ease);
}
.tile-card:hover .tile-visual img { transform: scale(1.04); }
.tile-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, transparent 60%, rgba(12,12,16,0.6) 100%);
  pointer-events: none;
}
.tile-visual-sm { margin-top: 32px; }

/* SECTIONS general */
.section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 120px 32px;
}
.section-head { text-align: center; max-width: 760px; margin: 0 auto 64px; }
.section-head h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 18px 0 16px;
  color: var(--ink);
}
.section-head .sub {
  color: var(--ink-mid);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: -0.005em;
}

/* SCIENCE */
.science { padding-top: 80px; }
.science-grid { grid-template-columns: repeat(4, 1fr); display: grid; gap: 16px; }
.sci-card {
  padding: 40px 32px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  text-align: left;
  transition: transform 0.5s var(--ease), border-color 0.3s, background 0.3s;
}
.sci-card:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--panel-2); }
.sci-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(43,240,200,0.1);
  display: grid; place-items: center;
  color: var(--accent);
  margin-bottom: 26px;
  transition: transform 0.6s var(--ease);
}
.sci-card:hover .sci-icon { transform: scale(1.08); }
.sci-icon svg { width: 28px; height: 28px; }
.sci-card h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--ink);
}
.sci-card p { color: var(--ink-mid); margin: 0; font-size: 15px; line-height: 1.5; }

/* HOW IT WORKS */
.how { padding-top: 80px; }
.steps { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 20px; align-items: center; }
.step {
  padding: 48px 36px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.5s var(--ease), border-color 0.3s, background 0.3s;
}
.step:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--panel-2); }
.step-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--accent);
  display: block;
  margin-bottom: 24px;
}
.step h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 28px;
  letter-spacing: -0.025em;
  margin: 0 0 10px;
  color: var(--ink);
}
.step p { color: var(--ink-mid); margin: 0; font-size: 16px; }
.step-arrow {
  font-size: 28px;
  color: var(--ink-dim);
  text-align: center;
  animation: arrowPulse 3s ease-in-out infinite;
}
@keyframes arrowPulse {
  0%, 100% { transform: translateX(0); opacity: 0.4; }
  50% { transform: translateX(4px); opacity: 0.9; }
}

/* BLOG */
.blog { padding-top: 80px; }
.blog-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
  max-width: none;
  margin-bottom: 56px;
}
.blog-head h2 {
  font-size: clamp(36px, 5vw, 64px);
  margin: 12px 0 0;
}
.link-arrow {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-transform: none;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.4s var(--ease), color 0.3s;
}
.link-arrow:hover { gap: 12px; color: var(--ink); }

.blog-grid { grid-template-columns: repeat(2, 1fr); display: grid; gap: 16px; }
.post {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.5s var(--ease), border-color 0.3s;
  color: inherit;
}
.post:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.post-img { overflow: hidden; aspect-ratio: 16/10; position: relative; }
.post-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(12,12,16,0.5) 100%);
}
.post-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(115%);
  transition: transform 1.4s var(--ease);
}
.post:hover .post-img img { transform: scale(1.05); }
.post-body { padding: 32px 32px 36px; }
.post-tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--accent);
  padding: 4px 10px;
  border: 1px solid rgba(43,240,200,0.25);
  border-radius: 999px;
  margin-bottom: 18px;
}
.post h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--ink);
}
.post-meta {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-dim);
  margin: 0;
  letter-spacing: 0;
}

/* PRINCIPLES STRIP */
.principles-strip { padding-top: 80px; }
.principles-grid { grid-template-columns: repeat(4, 1fr); display: grid; gap: 16px; }
.principle {
  padding: 36px 30px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.5s var(--ease), border-color 0.3s, background 0.3s;
}
.principle:hover { transform: translateY(-3px); border-color: var(--line-strong); background: var(--panel-2); }
.p-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 20px;
  width: auto;
  padding: 0;
  border: 0;
}
.principle h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--ink);
}
.principle p { color: var(--ink-mid); margin: 0; font-size: 15px; line-height: 1.5; }

/* CTA */
.cta {
  padding: 140px 24px;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(74,107,255,0.18), transparent 60%),
    radial-gradient(700px 400px at 20% 100%, rgba(43,240,200,0.1), transparent 60%),
    radial-gradient(700px 400px at 80% 100%, rgba(255,90,122,0.1), transparent 60%);
  border: 0;
  margin: 16px;
  border-radius: var(--radius-lg);
  max-width: none;
}
.cta-inner { max-width: 720px; margin: 0 auto; text-align: center; padding: 0; }
.cta h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  margin: 20px 0 18px;
  color: var(--ink);
}
.cta p {
  color: var(--ink-mid);
  font-size: 19px;
  max-width: 500px;
  margin: 0 auto;
  letter-spacing: -0.005em;
}

.contact-form {
  margin-top: 48px;
  display: grid;
  gap: 14px;
  text-align: left;
}
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-mid);
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  padding: 14px 16px;
  border-radius: 14px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: -0.005em;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.06);
}
.contact-form .full { display: flex; flex-direction: column; }
.contact-form button { justify-self: center; margin-top: 12px; padding: 14px 32px; }
.hp { position: absolute; left: -9999px; }

/* FOOTER */
.footer {
  padding: 56px 32px 36px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}
.foot-tag {
  color: var(--ink-dim);
  margin: 10px 0 0;
  font-size: 13.5px;
  font-family: var(--sans);
  font-weight: 400;
  font-style: normal;
}
.foot-links { display: flex; flex-direction: column; gap: 10px; }
.foot-links a { color: var(--ink-dim); font-size: 13.5px; transition: color 0.3s; }
.foot-links a:hover { color: var(--ink); }
.foot-meta { color: var(--ink-dim); font-size: 12.5px; text-align: right; }
.foot-meta p { margin: 4px 0; }
.brand-foot .brand-text { font-size: 17px; }

/* REVEAL — softer */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* RESPONSIVE */
@media (max-width: 980px) {
  .hero { padding-top: 80px; min-height: auto; }
  .tile-content { padding: 40px 32px 0; }
  .tile-row { grid-template-columns: 1fr; }
  .tile-card { min-height: 480px; }
  .tile-feature { min-height: 600px; }
  .science-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .step-arrow { transform: rotate(90deg); margin: 0 auto; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .foot-meta { text-align: left; }
  .hero-proof { gap: 32px; }
  .hero-proof strong { font-size: 36px; }
  .section { padding: 80px 24px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(0, 0, 0, 0.97);
    padding: 20px 28px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
  }
  .science-grid, .principles-grid { grid-template-columns: 1fr; }
  .contact-form .row { grid-template-columns: 1fr; }
  .tile-content { padding: 32px 24px 0; }
  .lead-form { flex-direction: column; border-radius: 24px; padding: 10px; }
  .lead-form .btn { width: 100%; justify-content: center; }
  .hero-title { font-size: 48px; }
  .cta { margin: 8px; padding: 80px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .hero-title .word, .lede, .lead-form, .form-meta, .hero-orb, .hero-proof { opacity: 1 !important; transform: none !important; }
}

/* ===== BLOG PAGES ===== */
.page-hero {
  padding: 140px 32px 60px;
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}
.page-hero .eyebrow { margin: 0 auto; }
.page-hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(40px, 6.5vw, 88px);
  line-height: 1;
  letter-spacing: -0.045em;
  margin: 22px 0 18px;
  color: var(--ink);
}
.page-hero .lede {
  color: var(--ink-mid);
  font-size: clamp(17px, 1.6vw, 20px);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.45;
}

.blog-index {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 32px 120px;
}
.blog-index .blog-grid { grid-template-columns: repeat(2, 1fr); display: grid; gap: 16px; }

/* Article layout */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 100px 24px 40px;
}
.article-meta {
  display: flex;
  gap: 14px;
  justify-content: center;
  align-items: center;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-dim);
  margin-bottom: 16px;
}
.article-meta .dot {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--ink-dim);
}
.article-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--accent);
  padding: 4px 10px;
  border: 1px solid rgba(43,240,200,0.25);
  border-radius: 999px;
  background: rgba(43,240,200,0.04);
}
.article h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 16px 0 24px;
  color: var(--ink);
  text-align: center;
}
.article-lede {
  font-family: var(--sans);
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink-mid);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
  letter-spacing: -0.005em;
}
.article-hero {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 0 auto 56px;
  border: 1px solid var(--line);
  background: var(--panel);
}
.article-hero img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(115%);
}

.prose {
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.7;
  color: #d1d1d8;
  letter-spacing: -0.005em;
}
.prose p { margin: 0 0 22px; }
.prose h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 30px;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 56px 0 18px;
  line-height: 1.15;
}
.prose h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 36px 0 14px;
}
.prose ul, .prose ol {
  margin: 0 0 22px;
  padding-left: 24px;
}
.prose li { margin-bottom: 8px; }
.prose blockquote {
  border-left: 2px solid var(--accent);
  padding: 6px 0 6px 22px;
  margin: 28px 0;
  color: var(--ink);
  font-family: var(--display);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.015em;
}
.prose a {
  color: var(--accent);
  border-bottom: 1px solid rgba(43,240,200,0.3);
  transition: color 0.2s, border-color 0.2s;
}
.prose a:hover { color: var(--ink); border-color: var(--ink); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 48px 0;
}

.article-foot {
  max-width: 760px;
  margin: 64px auto 0;
  padding: 32px 24px 80px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--sans);
  font-size: 14px;
}
.article-foot a { color: var(--accent); }
.article-foot a:hover { color: var(--ink); }

@media (max-width: 640px) {
  .blog-index .blog-grid { grid-template-columns: 1fr; }
  .prose { font-size: 17px; }
  .prose h2 { font-size: 26px; }
}

/* ============================================================
   POST ART — CSS-generated cover art for blog posts.
   Replaces remote images: zero network, no broken assets.
   ============================================================ */
.post-art {
  --c1: #2bf0c8;
  --c2: #4a6bff;
  --c3: #0c0c10;
  background:
    radial-gradient(circle at 30% 30%, var(--c1) 0%, transparent 45%),
    radial-gradient(circle at 75% 65%, var(--c2) 0%, transparent 55%),
    radial-gradient(circle at 50% 50%, var(--c3) 0%, #050508 90%);
  position: relative;
  isolation: isolate;
  transition: transform 1.4s var(--ease);
}
.post-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 150'><g fill='none' stroke='white' stroke-opacity='0.22' stroke-width='1'><ellipse cx='120' cy='75' rx='95' ry='34'/><ellipse cx='120' cy='75' rx='95' ry='34' transform='rotate(35 120 75)'/><ellipse cx='120' cy='75' rx='95' ry='34' transform='rotate(-35 120 75)'/><circle cx='120' cy='75' r='12' fill='white' fill-opacity='0.35' stroke='none'/></g></svg>");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 78% auto;
  opacity: 0.85;
  z-index: 1;
  mix-blend-mode: screen;
}
.post:hover .post-art { transform: scale(1.04); }

.post-art--1  { --c1:#2bf0c8; --c2:#4a6bff; --c3:#091022; }
.post-art--2  { --c1:#5aa9ff; --c2:#ff5a7a; --c3:#0c0820; }
.post-art--3  { --c1:#ffc15c; --c2:#ff5a7a; --c3:#1c0a14; }
.post-art--4  { --c1:#2bf0c8; --c2:#ffc15c; --c3:#0a1418; }
.post-art--5  { --c1:#4a6bff; --c2:#2bf0c8; --c3:#070a1e; }
.post-art--6  { --c1:#ff5a7a; --c2:#4a6bff; --c3:#160820; }
.post-art--7  { --c1:#ffc15c; --c2:#2bf0c8; --c3:#0d1410; }
.post-art--8  { --c1:#5aa9ff; --c2:#ffc15c; --c3:#0a1020; }
.post-art--9  { --c1:#2bf0c8; --c2:#ff5a7a; --c3:#100820; }
.post-art--10 { --c1:#ff5a7a; --c2:#ffc15c; --c3:#1a0a14; }