@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&family=Instrument+Serif:ital@0;1&display=swap');

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

:root {
  --section-pad: 120px;
  --max-w: 1240px;
}

html[data-mode="dark"] {
  --bg: oklch(0.155 0.018 278);
  --bg-2: oklch(0.135 0.02 278);
  --surface: oklch(0.195 0.022 278);
  --surface-2: oklch(0.225 0.024 278);
  --border: oklch(0.27 0.025 278);
  --border-2: oklch(0.32 0.03 278);
  --text: oklch(0.97 0.005 278);
  --text-2: oklch(0.72 0.015 278);
  --text-3: oklch(0.55 0.018 278);
  --accent: oklch(0.70 0.22 278);
  --accent-2: oklch(0.78 0.20 278);
  --accent-soft: oklch(0.70 0.22 278 / 0.12);
  --glow: oklch(0.70 0.28 278 / 0.35);
}

html[data-mode="light"] {
  --bg: oklch(0.985 0.005 278);
  --bg-2: oklch(0.965 0.008 278);
  --surface: oklch(1 0 0);
  --surface-2: oklch(0.96 0.01 278);
  --border: oklch(0.90 0.01 278);
  --border-2: oklch(0.85 0.012 278);
  --text: oklch(0.20 0.015 278);
  --text-2: oklch(0.45 0.012 278);
  --text-3: oklch(0.60 0.012 278);
  --accent: oklch(0.55 0.22 278);
  --accent-2: oklch(0.65 0.22 278);
  --accent-soft: oklch(0.55 0.22 278 / 0.10);
  --glow: oklch(0.65 0.25 278 / 0.18);
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Geist', -apple-system, system-ui, sans-serif;
  font-feature-settings: 'ss01';
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.5;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
}
html { scroll-behavior: smooth; }
.section, #top { scroll-margin-top: 88px; }
@media (max-width: 760px) {
  .section, #top { scroll-margin-top: 72px; }
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { list-style: none; }
.mono { font-family: 'Geist Mono', ui-monospace, monospace; }

/* eyebrow */
.eyebrow {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

/* header */
.header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
  background: color-mix(in oklch, var(--bg) 55%, transparent);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 30%, transparent);
  transition: background 0.25s ease, border-color 0.25s ease, padding 0.25s ease;
}
.header.is-scrolled {
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  border-bottom-color: color-mix(in oklch, var(--border) 70%, transparent);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 32px;
  gap: 40px;
  transition: padding 0.25s ease;
}
.is-scrolled .nav { padding: 12px 32px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.brand-word {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  letter-spacing: -0.025em;
  font-weight: 600;
  line-height: 1;
}
.brand-word-main {
  font-size: 20px;
}
.brand-word-sep {
  color: var(--text-3);
  font-weight: 400;
  font-size: 20px;
  transform: translateY(-1px);
}
.brand-word-accent {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 3px 8px;
  border-radius: 6px;
  background: color-mix(in oklch, var(--text) 10%, transparent);
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 5px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--border) 70%, transparent);
  background: color-mix(in oklch, var(--surface) 65%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, white 5%, transparent),
    0 1px 2px color-mix(in oklch, black 20%, transparent);
  font-size: 14px;
  color: var(--text-2);
  letter-spacing: -0.005em;
  font-weight: 500;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--text-2);
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: color-mix(in oklch, var(--surface-2) 90%, transparent);
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: -1;
}
.nav-link:hover {
  color: var(--text);
}
.nav-link:hover::before {
  opacity: 1;
  transform: scale(1);
}
.nav-link.is-active {
  color: var(--text);
}
.nav-link.is-active::before {
  opacity: 1;
  transform: scale(1);
  background: color-mix(in oklch, var(--surface-2) 100%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in oklch, white 6%, transparent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px 9px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.005em;
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, var(--accent) 35%, var(--border));
  background:
    linear-gradient(180deg, color-mix(in oklch, var(--accent) 18%, transparent), color-mix(in oklch, var(--accent) 8%, transparent)),
    var(--surface);
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, white 12%, transparent),
    0 1px 0 color-mix(in oklch, var(--accent) 10%, transparent);
  transition: all 0.22s ease;
  overflow: hidden;
}
.nav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 120% at 50% 120%, color-mix(in oklch, var(--accent) 40%, transparent), transparent 70%);
  opacity: 0;
  transition: opacity 0.22s ease;
}
.nav-cta:hover {
  border-color: color-mix(in oklch, var(--accent) 70%, var(--border));
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, white 18%, transparent),
    0 8px 24px -8px color-mix(in oklch, var(--accent) 50%, transparent);
}
.nav-cta:hover::before { opacity: 1; }
.nav-cta-label, .nav-cta-arrow { position: relative; }
.nav-cta-arrow {
  display: grid; place-items: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: color-mix(in oklch, var(--accent) 25%, transparent);
  color: var(--text);
  transition: transform 0.28s cubic-bezier(.2,.8,.2,1), background 0.22s;
}
.nav-cta:hover .nav-cta-arrow {
  transform: translate(2px, -2px);
  background: var(--accent);
}

.icon-btn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all 0.15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-2); background: var(--surface); }
html[data-mode="dark"] .icon-moon { display: none; }
html[data-mode="light"] .icon-sun { display: none; }

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: all 0.18s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: oklch(0.99 0 0);
  box-shadow:
    0 0 0 1px color-mix(in oklch, var(--accent) 50%, transparent),
    0 10px 30px -10px var(--glow),
    inset 0 1px 0 oklch(1 0 0 / 0.18);
}
.btn-primary:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
  box-shadow:
    0 0 0 1px color-mix(in oklch, var(--accent) 50%, transparent),
    0 14px 36px -10px var(--glow),
    inset 0 1px 0 oklch(1 0 0 / 0.18);
}
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--border-2); background: var(--surface); }

/* hero */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.hero h1 {
  font-size: clamp(46px, 6.4vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 22px 0 24px;
}
.hero h1 .ital {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  font-family: 'Instrument Serif', 'Geist', serif;
}
.hero p.lead {
  font-size: 17px;
  line-height: 1.55;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 32px;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }

/* hero visual */
.hero-art {
  position: relative;
  aspect-ratio: 1.05;
  display: grid;
  place-items: center;
}
.hero-iso-glow {
  position: absolute;
  inset: 12% 8%;
  background: radial-gradient(ellipse at 55% 45%, var(--glow), transparent 65%);
  filter: blur(50px);
  pointer-events: none;
}
.hero-orb {
  position: relative;
  max-width: 600px;
  width: 100%;
  height: auto;
}

/* sections */
.section { padding: var(--section-pad) 0; }
#approach { padding-top: 0; }
.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 56px;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding: 0 32px;
}
.section-head h2 {
  font-size: clamp(36px, 4.8vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 500;
  margin-top: 16px;
}
.section-head h2 .dim { color: var(--text-3); }
.section-head .lede { color: var(--text-2); font-size: 16px; max-width: 420px; }

/* services cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-2); }
.card::after {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at top left, var(--accent-soft), transparent 55%);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover::after { opacity: 1; }
.card-num {
  font-family: 'Geist Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 56px;
  display: inline-block;
  white-space: nowrap;
}
.card-title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.card-body {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 24px;
}
.card-list {
  display: flex; flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 13.5px;
  color: var(--text-2);
}
.card-list li { display: flex; align-items: center; gap: 10px; }
.li-mark {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13.5px; font-weight: 500;
  color: var(--text);
  border-top: 1px solid var(--border);
  padding-top: 22px;
  margin-top: auto;
  transition: gap 0.2s;
  white-space: nowrap;
}
.card-link:hover { gap: 10px; }

/* approach process */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: var(--max-w);
  margin: 0 auto;
}
.process-step {
  padding: 36px 28px 40px;
  border-right: 1px solid var(--border);
}
.process-step:last-child { border-right: 0; }
.process-num {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  margin-bottom: 28px;
  white-space: nowrap;
}
.process-step h4 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.process-step p {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
}

/* solutions */
.solutions {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  align-items: stretch;
  gap: 16px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.sol {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.25s;
}
.sol:hover { transform: translateY(-3px); border-color: var(--border-2); }
.sol-preview {
  height: 220px;
  flex: 0 0 220px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.sol-body { padding: 24px 26px 26px; flex: 1; display: flex; flex-direction: column; }
.sol-tags { margin-top: auto; padding-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.sol-meta {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 12px;
}
.sol-meta::before {
  content: '';
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.sol h3 {
  font-size: 19px; font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.sol p {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.55;
}
.sol-tag {
  font-family: 'Geist Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  color: var(--text-2);
}

/* CTA banner */
.cta-section { padding-top: 0; padding-bottom: 100px; }
.cta-banner {
  position: relative;
  isolation: isolate;
  margin: 0 auto;
  max-width: var(--max-w);
  padding: 64px;
  border-radius: 24px;
  background:
    radial-gradient(120% 140% at 100% 0%, color-mix(in oklch, var(--accent) 28%, transparent) 0%, transparent 55%),
    radial-gradient(90% 120% at 0% 100%, color-mix(in oklch, oklch(0.55 0.18 320) 22%, transparent) 0%, transparent 60%),
    linear-gradient(160deg,
      color-mix(in oklch, var(--surface-2) 100%, transparent) 0%,
      color-mix(in oklch, var(--bg-2) 100%, transparent) 100%);
  border: 1px solid color-mix(in oklch, var(--accent) 28%, var(--border));
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, white 10%, transparent),
    inset 0 0 0 1px color-mix(in oklch, white 3%, transparent),
    0 30px 60px -30px color-mix(in oklch, var(--accent) 35%, transparent),
    0 8px 24px -12px color-mix(in oklch, black 55%, transparent);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  overflow: hidden;
}
.cta-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklch, white 5%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklch, white 5%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(120% 120% at 50% 50%, black 30%, transparent 80%);
          mask-image: radial-gradient(120% 120% at 50% 50%, black 30%, transparent 80%);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}
.cta-glow {
  position: absolute;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}
.cta-glow-1 {
  top: -45%;
  right: -8%;
  width: 55%;
  background: radial-gradient(circle, var(--accent), transparent 60%);
  opacity: 0.55;
}
.cta-glow-2 {
  bottom: -55%;
  left: -10%;
  width: 50%;
  background: radial-gradient(circle, oklch(0.65 0.20 320), transparent 60%);
  opacity: 0.35;
}
.cta-noise {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: overlay;
  z-index: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><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 0.35 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
.cta-shine {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: linear-gradient(180deg, color-mix(in oklch, white 8%, transparent) 0%, transparent 30%);
  border-radius: inherit;
}
.cta-banner > *:not(.cta-glow):not(.cta-grid):not(.cta-noise):not(.cta-shine) {
  position: relative;
  z-index: 1;
}
.cta-text { display: flex; flex-direction: column; gap: 8px; }
.cta-eyebrow {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.cta-h {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text);
}
.cta-sub {
  font-size: 15px;
  color: var(--text-2);
  letter-spacing: -0.005em;
  max-width: 52ch;
}
.cta-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px 16px 26px;
  border-radius: 999px;
  background: linear-gradient(180deg, color-mix(in oklch, white 6%, var(--bg)), var(--bg));
  color: var(--text);
  border: 1px solid color-mix(in oklch, white 10%, var(--border));
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: all 0.22s ease;
  justify-self: end;
  box-shadow:
    inset 0 1px 0 color-mix(in oklch, white 10%, transparent),
    0 8px 24px -10px color-mix(in oklch, black 60%, transparent);
}
.cta-btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
  transform: translateY(-1px);
}
.cta-btn-arrow {
  display: grid; place-items: center;
  width: 18px; height: 18px;
  color: var(--text-2);
  transition: transform 0.22s, color 0.22s;
}
.cta-btn:hover .cta-btn-arrow { transform: translate(2px, -2px); color: var(--bg); }

/* footer */
.footer {
  border-top: 1px solid var(--border);
  margin-top: 80px;
  padding: 64px 0 36px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer h5 {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
  font-weight: 500;
}
.footer ul {
  display: flex; flex-direction: column;
  gap: 9px;
  font-size: 13.5px;
  color: var(--text-2);
}
.footer ul a {
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 0.18s, gap 0.18s;
}
.footer ul a:hover { color: var(--text); gap: 10px; }
.footer-about p {
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.6;
  max-width: 280px;
  margin-top: 14px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  text-transform: uppercase;
}

/* mobile menu button */
.menu-btn {
  display: none;
  width: 38px; height: 38px;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color 0.18s, background 0.18s;
}
.menu-btn:hover { border-color: var(--border-2); background: var(--surface); }
.menu-btn-bars {
  position: relative;
  display: block;
  width: 16px; height: 12px;
}
.menu-btn-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.28s cubic-bezier(.2,.8,.2,1), opacity 0.2s ease, top 0.28s cubic-bezier(.2,.8,.2,1);
}
.menu-btn-bars span:nth-child(1) { top: 1px; }
.menu-btn-bars span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-btn-bars span:nth-child(3) { top: calc(100% - 1px); }
.menu-btn[aria-expanded="true"] .menu-btn-bars span:nth-child(1) {
  top: 50%; transform: translateY(-50%) rotate(45deg);
}
.menu-btn[aria-expanded="true"] .menu-btn-bars span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] .menu-btn-bars span:nth-child(3) {
  top: 50%; transform: translateY(-50%) rotate(-45deg);
}

/* mobile drawer */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 96px 24px 32px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.28s ease, transform 0.32s cubic-bezier(.2,.8,.2,1), visibility 0.28s;
  overflow-y: auto;
  overscroll-behavior: contain;
}
body.menu-open .mobile-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
body.menu-open { overflow: hidden; }
.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu-link {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 8px;
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--text);
  border-bottom: 1px solid color-mix(in oklch, var(--border) 50%, transparent);
  transition: color 0.18s, padding-left 0.2s ease;
}
.mobile-menu-link:hover,
.mobile-menu-link:focus-visible { color: var(--accent-2); padding-left: 16px; }
.mobile-menu-num {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  flex-shrink: 0;
  width: 28px;
}
.mobile-menu-foot {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 24px;
}
.mobile-menu-cta {
  justify-content: center;
  padding: 16px 24px;
  font-size: 16px;
}
.mobile-menu-meta {
  font-family: 'Geist Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  text-align: center;
  text-transform: uppercase;
}

/* responsive */
@media (max-width: 1100px) {
  .nav-links { font-size: 13.5px; }
}
@media (max-width: 920px) {
  :root { --section-pad: 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 8px; }
  .nav-links { display: none; }
  .menu-btn { display: grid; }
  .nav-cta { display: none; }
  .brand-word-accent { padding: 2px 6px; font-size: 18px; }
  .brand-word-main, .brand-word-sep { font-size: 18px; }
  .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 36px; }
  .grid-3 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .process-step { padding: 28px 22px 32px; }
  .process-step:nth-child(2n) { border-right: 0; }
  .process-step:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .solutions { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-about { grid-column: 1 / -1; }
  .hero-art {
    max-width: 360px;
    aspect-ratio: 1;
    margin: 0 auto;
  }
  .hero-orb { max-width: 360px; }
  .cta-row { margin-bottom: 0; }
}
@media (max-width: 760px) {
  :root { --section-pad: 56px; }
  .nav { padding: 14px 20px; gap: 12px; }
  .hero { padding: 24px 0 32px; }
  .hero h1 { font-size: clamp(40px, 10vw, 56px); margin: 14px 0 18px; }
  .hero h1 br { display: none; }
  .hero p.lead { font-size: 15.5px; margin-bottom: 24px; }
  .eyebrow { font-size: 10px; letter-spacing: 0.14em; }
  .cta-row { width: 100%; gap: 10px; }
  .cta-row .btn { flex: 1; justify-content: center; padding: 12px 16px; }
  .hero-grid { padding: 0 20px; }
  .hero-art { max-width: 320px; }
  .hero-orb { max-width: 320px; }
  .hero-iso-glow { filter: blur(40px); opacity: 0.7; }
  .section-head, .grid-3, .solutions, .footer-inner { padding-left: 20px; padding-right: 20px; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: clamp(30px, 9vw, 44px); margin-top: 8px; }
  .section-head .lede { font-size: 15px; }
  #approach { padding-top: 0; }
  .card { padding: 24px; border-radius: 16px; }
  .card-num { margin-bottom: 32px; }
  .card-list { margin-bottom: 22px; }
  .grid-3 { gap: 12px; }
  .solutions { gap: 12px; }
  .sol-preview { height: 180px; flex: 0 0 180px; }
  .sol-body { padding: 22px 22px 24px; }
  .cta-banner { grid-template-columns: 1fr; padding: 32px 22px; gap: 20px; border-radius: 18px; }
  .cta-section { padding-top: 0; padding-bottom: 56px; }
  .cta-h { font-size: clamp(24px, 8vw, 34px); }
  .cta-sub { font-size: 14px; }
  .cta-btn { justify-self: stretch; justify-content: center; padding: 14px 20px; font-size: 14px; }
  .footer { padding: 40px 0 28px; margin-top: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 32px; }
  .footer-about { grid-column: 1 / -1; }
  .footer-bottom { font-size: 10px; padding-top: 22px; }
  .mobile-menu-link { font-size: 28px; padding: 16px 8px; }
}
@media (max-width: 480px) {
  .hero { padding: 16px 0 24px; }
  .hero h1 { font-size: clamp(36px, 11vw, 48px); }
  .hero-art { max-width: 280px; }
  .hero-orb { max-width: 280px; }
  .process { grid-template-columns: 1fr; }
  .process-step { border-right: 0; border-bottom: 1px solid var(--border); padding: 24px 20px 28px; }
  .process-step:last-child { border-bottom: 0; }
  .process-step:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .icon-btn { width: 36px; height: 36px; }
  .menu-btn { width: 36px; height: 36px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}