:root {
  --bg: #07080c;
  --bg-2: #0b0d14;
  --fg: #e8ecf2;
  --fg-dim: #9aa3b2;
  --fg-mute: #5b6370;
  --hair: rgba(255,255,255,0.08);
  --hair-2: rgba(255,255,255,0.04);
  --cyan: oklch(0.82 0.15 220);
  --violet: oklch(0.70 0.17 295);
  --magenta: oklch(0.74 0.19 340);
  --grad: linear-gradient(90deg, oklch(0.85 0.14 210) 0%, oklch(0.70 0.17 290) 55%, oklch(0.74 0.19 340) 100%);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
html { scroll-behavior: auto; }
body {
  font-family: 'Fraunces', 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 350;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  overflow-x: hidden;
}
.hero, section.block, .closing { min-height: 100vh; }

.serif { font-family: 'Fraunces', 'Times New Roman', serif; font-optical-sizing: auto; letter-spacing: -0.02em; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

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

.blob-stage {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.blob-stage canvas {
  width: 100%;
  height: 100%;
  pointer-events: auto;
}

/* Transforming wallpaper — atmospheric environments per chapter */
.wallpaper {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.wp-layer {
  position: absolute;
  inset: -10%;
  opacity: 0;
  transition: opacity 1.1s ease, transform 1.6s ease;
  transform: scale(1.02);
  will-change: opacity, transform;
}
.wp-layer.on { opacity: 1; transform: scale(1); }

/* Each chapter gets its own soft atmosphere */
.wp-0 {  /* Hero - cool deep space */
  background:
    radial-gradient(ellipse 70% 55% at 22% 32%, oklch(0.35 0.10 220 / 0.35), transparent 60%),
    radial-gradient(ellipse 55% 50% at 78% 70%, oklch(0.30 0.12 280 / 0.30), transparent 65%);
}
.wp-1 {  /* Silicon chip - amber/copper grid */
  background:
    radial-gradient(ellipse 60% 60% at 70% 40%, oklch(0.40 0.09 55 / 0.38), transparent 62%),
    radial-gradient(ellipse 50% 45% at 20% 75%, oklch(0.28 0.06 30 / 0.35), transparent 65%),
    linear-gradient(180deg, transparent, oklch(0.20 0.04 50 / 0.2));
}
.wp-2 {  /* Battery - electric green */
  background:
    radial-gradient(ellipse 55% 60% at 25% 45%, oklch(0.40 0.14 150 / 0.35), transparent 60%),
    radial-gradient(ellipse 50% 55% at 75% 65%, oklch(0.32 0.10 165 / 0.30), transparent 65%);
}
.wp-3 {  /* Quantum fridge - ice cyan */
  background:
    radial-gradient(ellipse 65% 60% at 75% 40%, oklch(0.45 0.12 210 / 0.38), transparent 60%),
    radial-gradient(ellipse 55% 60% at 20% 70%, oklch(0.38 0.09 230 / 0.32), transparent 65%);
}
.wp-4 {  /* Neural net - violet */
  background:
    radial-gradient(ellipse 60% 55% at 25% 40%, oklch(0.40 0.15 295 / 0.38), transparent 60%),
    radial-gradient(ellipse 55% 55% at 78% 70%, oklch(0.32 0.12 315 / 0.32), transparent 65%);
}
.wp-5 {  /* Photonics - magenta/rose */
  background:
    radial-gradient(ellipse 65% 55% at 75% 40%, oklch(0.42 0.16 340 / 0.38), transparent 60%),
    radial-gradient(ellipse 55% 55% at 22% 70%, oklch(0.36 0.13 20 / 0.32), transparent 65%);
}
.wp-6 {  /* DNA - emerald/teal */
  background:
    radial-gradient(ellipse 60% 55% at 28% 45%, oklch(0.38 0.13 175 / 0.35), transparent 60%),
    radial-gradient(ellipse 55% 55% at 78% 65%, oklch(0.34 0.10 190 / 0.30), transparent 65%);
}
.wp-7 {  /* Sonar - red/alert (warning/without) */
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, oklch(0.42 0.19 20 / 0.42), transparent 55%),
    radial-gradient(ellipse 55% 50% at 25% 25%, oklch(0.36 0.15 15 / 0.32), transparent 65%),
    radial-gradient(ellipse 55% 50% at 75% 75%, oklch(0.38 0.14 35 / 0.32), transparent 65%);
}
.wp-8 {  /* Paper plane - calm blue/cyan, inviting */
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, oklch(0.44 0.14 220 / 0.38), transparent 55%),
    radial-gradient(ellipse 60% 55% at 20% 80%, oklch(0.38 0.12 200 / 0.28), transparent 65%),
    radial-gradient(ellipse 60% 55% at 80% 20%, oklch(0.40 0.11 240 / 0.26), transparent 65%);
}
.wp-grid {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  mix-blend-mode: overlay;
}
.wallpaper.show-grid .wp-grid { opacity: 0.6; }
.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 50%, transparent 40%, rgba(0,0,0,0.55) 100%),
    linear-gradient(180deg, rgba(0,0,0,0.25), transparent 20%, transparent 80%, rgba(0,0,0,0.35));
}
.grain {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  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'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: linear-gradient(180deg, rgba(7,8,12,0.72) 0%, rgba(7,8,12,0) 100%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  min-width: 0;
}
.nav .brand-mark {
  height: 34px;
  width: auto;
  border-radius: 0;
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(0, 207, 255, 0.25));
}
.nav .brand-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
  min-width: 0;
}
.nav .brand-name {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.nav .brand-tag {
  font-family: 'JetBrains Mono', monospace;
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-top: 7px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav .nav-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
  display: flex;
  gap: 24px;
  align-items: center;
  flex-shrink: 0;
}
.nav .dot {
  display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse 2.4s ease-in-out infinite;
}
.nav a.meta-availability {
  color: var(--fg-mute);
  transition: color .2s ease;
  cursor: pointer;
}
.nav a.meta-availability:hover { color: var(--fg); }
@keyframes pulse { 0%,100%{opacity:0.5} 50%{opacity:1} }

/* Responsive nav: gracefully strip elements as the viewport narrows */
@media (max-width: 1100px) {
  .nav .meta-location { display: none; }
}
@media (max-width: 900px) {
  .nav { padding: 14px 20px; }
  .nav .brand-tag { display: none; }
  .nav .brand-name { font-size: 18px; }
}
@media (max-width: 640px) {
  .nav .brand-mark { height: 28px; }
  .nav .brand-name { font-size: 16px; }
  .nav .nav-meta { font-size: 10px; letter-spacing: 0.08em; }
  /* Availability link stays visible on mobile — it's the primary contact
     affordance while the floating pill is hidden (see below). */
  .nav .nav-meta .meta-availability { max-width: 160px; }
  .nav .nav-meta .dot { width: 6px; height: 6px; }
  /* Hide the floating "Let's talk" button on mobile so it stops overlapping
     body text; the nav availability link + final chapter form serve as CTAs. */
  .floating-cta { display: none !important; }
}

.page {
  position: relative;
  z-index: 3;
  pointer-events: none;
}
.page > * { pointer-events: auto; }

.story {
  max-width: 520px;
  padding-top: 22vh;
  padding-bottom: 18vh;
  margin-left: 6vw;
  position: relative;
}
.story.right { margin-left: auto; margin-right: clamp(220px, 14vw, 260px); }
.story.center { margin-left: auto; margin-right: auto; text-align: center; }
.story.center p, .story.center .pull { margin-left: auto; margin-right: auto; }
@media (max-width: 1000px) {
  .story, .story.right, .story.center { max-width: 92vw; margin: 0 auto; padding-top: 18vh; text-align: left; }
}

.hero {
  padding-top: 20vh;
  padding-bottom: 40vh;
  max-width: 820px;
  margin-left: 6vw;
  pointer-events: auto;
}
.hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(56px, 9.5vw, 148px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  margin: 0;
}
.hero h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline;
}
.hero h1 .dim { color: var(--fg-dim); font-weight: 300; }
.hero-sub {
  margin-top: 32px;
  font-size: 19px;
  color: var(--fg-dim);
  max-width: 440px;
}
.hero-meta {
  margin-top: 56px;
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.hero-meta div { display: flex; align-items: center; gap: 8px; }

/* Mobile: stack the hero meta items vertically so long labels like
   "AI NATIVE MARKETER" aren't cropped on narrow screens. */
@media (max-width: 640px) {
  .hero-meta {
    margin-top: 40px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    font-size: 10px;
    letter-spacing: 0.12em;
  }
}
.scroll-hint {
  margin-top: 110px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-mute);
  display: flex;
  align-items: center;
  gap: 12px;
}
.scroll-hint .line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--fg-mute), transparent);
  animation: slide 2.2s ease-in-out infinite;
}
@keyframes slide {
  0% { transform: translateX(0); opacity: 1; }
  100% { transform: translateX(40px); opacity: 0; }
}

section.block {
  padding: 14vh 0;
  position: relative;
}
section.block .eyebrow,
.closing .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
section.block .eyebrow .num,
.closing .eyebrow .num { color: var(--cyan); }
section.block .eyebrow .tick,
.closing .eyebrow .tick { width: 28px; height: 1px; background: var(--hair); }
section.block h2 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(34px, 4.6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
}
section.block h2 em {
  font-style: italic;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
section.block p {
  font-size: 17px;
  color: var(--fg-dim);
  max-width: 500px;
  margin: 0 0 18px;
}
section.block p strong { color: var(--fg); font-weight: 500; }

section.block p.pull,
.pull {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(19px, 1.55vw, 23px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 24px 0;
  max-width: 520px;
}
.pull .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.strip {
  margin: 48px 0;
  padding: 28px 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  display: flex;
  flex-wrap: wrap;
  gap: 28px 36px;
  align-items: center;
  color: var(--fg-dim);
}
.strip .logo {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  letter-spacing: -0.01em;
  opacity: 0.85;
  transition: opacity .2s;
  display: inline-flex;
  align-items: center;
}
.strip .logo.sans { font-family: 'Fraunces', 'Inter', sans-serif; font-weight: 600; letter-spacing: -0.02em; }
.strip .logo.mono { font-family: 'JetBrains Mono', monospace; font-size: 17px; letter-spacing: 0.02em; text-transform: uppercase; }
.strip .logo:hover { opacity: 1; }
.strip .logo img {
  display: block;
  height: clamp(18px, 2vw, 26px);
  width: auto;
  border-radius: 0;
  opacity: 0.75;
  transition: opacity .25s;
}
.strip .logo:hover img { opacity: 1; }
.strip .logo.logo-sm img { height: clamp(12px, 1.35vw, 17px); }
.strip-label {
  width: 100%;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 12px;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 40px;
  margin: 32px 0 48px;
  max-width: 560px;
}
.stat .num {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-size: 48px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.stat .num em {
  font-style: italic;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .label {
  font-size: 13px;
  color: var(--fg-dim);
  margin-top: 8px;
  max-width: 220px;
}

.services { margin: 24px 0; }
.service {
  border-top: 1px solid var(--hair);
  padding: 22px 0 24px;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  align-items: baseline;
}
.service:last-child { border-bottom: 1px solid var(--hair); }
.service .idx {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.12em;
}
.service h3 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.015em;
  margin: 0 0 6px;
}
.service p {
  font-size: 15px;
  color: var(--fg-dim);
  margin: 0;
  max-width: 440px;
}

.steps { margin: 16px 0; }
.step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-top: 1px solid var(--hair);
}
.step:last-child { border-bottom: 1px solid var(--hair); }
.step .num {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 300;
  font-size: 42px;
  color: var(--cyan);
  line-height: 1;
}
.step h3 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 24px;
  margin: 0 0 10px;
  letter-spacing: -0.015em;
}
.step p {
  font-size: 15px;
  color: var(--fg-dim);
  margin: 0;
  max-width: 460px;
}

.warn {
  margin: 32px 0;
  padding: 28px 32px;
  border: 1px solid var(--hair);
  background: rgba(255,255,255,0.015);
  backdrop-filter: blur(4px);
  max-width: 560px;
}
.warn h3 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 24px;
  margin: 0 0 12px;
  letter-spacing: -0.015em;
}
.warn p { font-size: 15px; color: var(--fg-dim); margin: 0 0 12px; max-width: none; }
.warn p:last-child { margin-bottom: 0; }

.floating-cta {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  pointer-events: auto;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .6s ease, transform .6s ease;
}
.floating-cta.visible { opacity: 1; transform: translateY(0); }
/* Fade out while the user is actively scrolling — keeps content readable
   underneath. JS toggles `.is-scrolling` on the floating-cta element. */
.floating-cta.visible.is-scrolling { opacity: 0.08; pointer-events: none; }
.floating-cta .caption {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  padding-right: 4px;
}
.cta-btn {
  background: var(--fg);
  color: #0a0a0f;
  border-radius: 999px;
  padding: 16px 26px;
  font-family: 'Fraunces', 'Inter', sans-serif;
  font-weight: 500;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  transition: all .25s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.cta-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity .3s;
}
.cta-btn span { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 10px; }
.cta-btn:hover::before { opacity: 1; }
.cta-btn .arrow { transition: transform .25s; }
.cta-btn:hover .arrow { transform: translateX(4px); }

.inline-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  background: var(--fg);
  color: #0a0a0f;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: transform .25s, box-shadow .25s;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: 'Fraunces', 'Inter', sans-serif;
  position: relative;
  overflow: hidden;
}
.inline-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad);
  opacity: 0;
  transition: opacity .3s;
}
.inline-cta > span {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.inline-cta .arrow { transition: transform .25s; }
.inline-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(80, 180, 255, 0.25);
}
.inline-cta:hover::before { opacity: 1; }
.inline-cta:hover .arrow { transform: translateX(4px); }

.layers {
  position: fixed;
  left: 28px;
  bottom: 28px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  pointer-events: none;
}
.layers .layer {
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0.4;
  transition: opacity .4s, color .4s;
}
.layers .layer .bar {
  width: 22px; height: 1px; background: currentColor;
}
.layers .layer.active {
  opacity: 1;
  color: var(--cyan);
}

.closing {
  padding: 20vh 0 22vh;
  margin-left: 6vw;
  margin-right: clamp(220px, 14vw, 260px);
  position: relative;
}
.closing-grid {
  display: grid;
  grid-template-columns: 1fr clamp(180px, 18vw, 220px);
  gap: clamp(40px, 5vw, 72px);
  align-items: start;
  max-width: 1000px;
}
.closing-text { min-width: 0; }
.closing-portrait {
  margin: 0;
  position: relative;
}
.closing-portrait img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 14px;
  filter: contrast(1.02);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.06) inset,
    0 0 60px rgba(0, 207, 255, 0.08);
}
.closing-portrait figcaption {
  margin-top: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  text-align: left;
}
@media (max-width: 900px) {
  .closing { margin-right: 6vw; }
  .closing-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .closing-portrait { max-width: 180px; }
}

.contact-form {
  display: grid;
  gap: 16px;
  margin-top: 36px;
  max-width: 480px;
}
.contact-form .row-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-form .field {
  display: grid;
  gap: 8px;
}
.contact-form .field > span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.contact-form .field > span em {
  font-style: normal;
  color: var(--fg-mute);
  opacity: 0.6;
  letter-spacing: 0.14em;
}
.contact-form input,
.contact-form textarea {
  font-family: 'Fraunces', 'Inter', sans-serif;
  font-size: 15px;
  color: var(--fg);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--hair);
  border-radius: 10px;
  padding: 13px 14px;
  transition: border-color .2s, background .2s, box-shadow .2s;
  width: 100%;
  box-sizing: border-box;
  line-height: 1.4;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--fg-mute);
  opacity: 0.6;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(120, 200, 255, 0.45);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 0 0 3px rgba(120, 200, 255, 0.08);
}
.contact-form textarea {
  min-height: 96px;
  resize: vertical;
  font-family: 'Fraunces', 'Inter', sans-serif;
}
.contact-form .inline-cta {
  justify-self: start;
  margin-top: 8px;
}
.contact-form .form-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  min-height: 16px;
}
.contact-form.is-submitted input,
.contact-form.is-submitted textarea,
.contact-form.is-submitted button,
.contact-form.is-sending input,
.contact-form.is-sending textarea,
.contact-form.is-sending button {
  opacity: 0.5;
  pointer-events: none;
}
.contact-form.is-error .form-status { color: #ff6b8a; }
.contact-form.is-submitted .form-status { color: var(--cyan); }
@media (max-width: 560px) {
  .contact-form .row-double { grid-template-columns: 1fr; }
}

.book-call-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg);
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  transition: color .2s ease, border-color .2s ease;
  align-self: flex-start;
  width: max-content;
}
.book-call-link span { transition: transform .2s ease; }
.book-call-link:hover { color: var(--cyan); border-color: var(--cyan); }
.book-call-link:hover span { transform: translateX(3px); }

.closing-alt {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  max-width: 480px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.closing-alt > span {
  flex-shrink: 0;
}
.closing-alt::before,
.closing-alt::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--hair);
}
.closing h2 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(44px, 6vw, 84px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 32px;
}
.closing h2 em {
  font-style: italic;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.closing p {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 460px;
  margin: 0 0 36px;
}

.footer {
  border-top: 1px solid var(--hair);
  padding: 36px 6vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
  position: relative;
  z-index: 3;
  background: rgba(7, 8, 12, 0.85);
  backdrop-filter: blur(8px);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 20px;
}
.footer-logo {
  height: clamp(56px, 6vw, 88px);
  width: auto;
  border-radius: 0;
  opacity: 1;
  display: block;
}
.footer-copy {
  color: var(--fg-mute);
}
.footer-contact {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-contact a {
  color: var(--fg-dim);
  transition: color .2s ease;
}
.footer-contact a:hover { color: var(--cyan); }
.footer-contact .sep { color: var(--fg-mute); opacity: 0.5; }
@media (max-width: 640px) {
  .footer { flex-direction: column; align-items: flex-start; }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .9s ease, transform .9s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ----------------------------------------------------------------------------
 * Low-end GPU fallback: on mobiles and touch devices, backdrop blur and the
 * fullscreen grain overlay are the two most expensive paint operations. Drop
 * them here so mid-range Android phones and older iPads stay at 60fps.
 * Also respect prefers-reduced-motion: kill heavy animations (pulse, slide)
 * without touching chapter-transition smoothness.
 * ------------------------------------------------------------------------- */
@media (hover: none), (pointer: coarse), (max-width: 900px) {
  .footer,
  .warn,
  .side-nav-btn {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
  .grain { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .nav .dot { animation: none; }
  .scroll-hint .line { animation: none; }
  .reveal { transition: none; }
  .reveal { opacity: 1; transform: none; }
}

.side-nav {
  position: fixed;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  pointer-events: auto;
  --rail-height: 320px;
}
.side-nav-rail {
  position: absolute;
  top: 14px;
  right: 6px;
  width: 1px;
  height: var(--rail-height);
}
.side-nav-track {
  position: absolute;
  inset: 0;
  background: var(--hair);
}
.side-nav-fill {
  position: absolute;
  left: -0.5px;
  width: 2px;
  background: var(--grad);
  top: 0;
  height: 0;
  transition: top .45s cubic-bezier(.22,.9,.3,1), height .45s cubic-bezier(.22,.9,.3,1);
  box-shadow: 0 0 12px rgba(120, 200, 255, 0.35);
}
.side-nav-list {
  position: relative;
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: var(--rail-height);
  width: 160px;
}
.side-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  height: 0; /* centers children on the row line defined by flex distribution */
}
.side-nav-btn {
  all: unset;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  min-width: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--hair);
  background: rgba(14, 16, 22, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: color .25s ease, border-color .3s ease, background .3s ease, min-width .35s cubic-bezier(.22,.9,.3,1), padding .35s ease;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.side-nav-btn .num,
.side-nav-btn .label {
  display: inline-block;
  transition: opacity .25s ease, transform .3s ease;
}
.side-nav-btn .label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) translateY(6px);
  opacity: 0;
  letter-spacing: 0.08em;
}
.side-nav-btn .num {
  opacity: 1;
  transform: translateY(0);
}

/* active / hover: swap num for label, widen pill */
.side-nav-item.active .side-nav-btn,
.side-nav-item:hover .side-nav-btn {
  color: var(--fg);
  border-color: rgba(255, 255, 255, 0.22);
  min-width: 88px;
  padding: 0 16px;
}
.side-nav-item.active .side-nav-btn .num,
.side-nav-item:hover .side-nav-btn .num {
  opacity: 0;
  transform: translateY(-6px);
}
.side-nav-item.active .side-nav-btn .label,
.side-nav-item:hover .side-nav-btn .label {
  opacity: 1;
  transform: translate(-50%, -50%) translateY(0);
}
.side-nav-item.active .side-nav-btn {
  border-color: rgba(120, 200, 255, 0.45);
  box-shadow: 0 0 18px rgba(120, 200, 255, 0.12), inset 0 0 0 1px rgba(120, 200, 255, 0.08);
}

.side-nav-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2a2f3a;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-sizing: border-box;
  transition: background .3s ease, box-shadow .3s ease, transform .3s ease, border-color .3s ease;
  flex-shrink: 0;
  /* nudge so dot center sits exactly on the rail line (rail is at right:6px, dot is ~7px wide -> margin-right keeps center aligned) */
  margin-right: 2.5px;
}
.side-nav-item.done .side-nav-dot {
  background: oklch(0.72 0.15 295);
  border-color: transparent;
  box-shadow: 0 0 8px rgba(170, 130, 255, 0.35);
}
.side-nav-item.active .side-nav-dot {
  background: var(--cyan);
  border-color: transparent;
  box-shadow: 0 0 14px var(--cyan);
  transform: scale(1.25);
}

@media (max-width: 1000px) {
  .side-nav { display: none; }
}