:root {
  color-scheme: dark;
  --paper: #f3f1ea;
  --ink: #080807;
  --black: #050607;
  --steel: #99a3ad;
  --line: rgba(243, 241, 234, 0.2);
  --muted: rgba(243, 241, 234, 0.68);
  --dim: rgba(243, 241, 234, 0.45);
  --hot: #ff4d2e;
  --signal: #d8ff4a;
  --blue: #8ec8ff;
  --panel: #121417;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--black);
  color: var(--paper);
  font-family: var(--sans);
  line-height: 1.25;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(180deg, rgba(255,255,255,0.025) 1px, transparent 1px) 0 0 / 64px 64px,
    var(--black);
}

body.sniffer {
  background:
    radial-gradient(circle at 78% 20%, rgba(216, 255, 74, 0.08), transparent 32%),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px) 0 0 / 72px 72px,
    var(--black);
}

body.window {
  background:
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(180deg, rgba(255,255,255,0.025) 1px, transparent 1px) 0 0 / 56px 56px,
    var(--black);
}

a {
  color: inherit;
}

.skip-link {
  left: 1rem;
  padding: 0.7rem 0.9rem;
  position: fixed;
  top: -4rem;
  z-index: 10;
  background: var(--paper);
  color: var(--ink);
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.nav {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1.1rem clamp(1rem, 4vw, 4rem);
  position: relative;
  z-index: 5;
}

.brand-mark {
  align-items: center;
  display: inline-flex;
  gap: 0.65rem;
  font-size: 0.86rem;
  font-weight: 720;
  letter-spacing: 0;
  text-decoration: none;
}

.mark {
  border: 1px solid currentColor;
  display: inline-block;
  height: 0.95rem;
  position: relative;
  width: 0.95rem;
}

.mark::after {
  background: currentColor;
  content: "";
  height: 0.26rem;
  position: absolute;
  right: -0.18rem;
  top: 0.22rem;
  width: 0.26rem;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: clamp(0.8rem, 2vw, 1.35rem);
  font-size: 0.82rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--paper);
}

.button-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  align-items: center;
  border: 1px solid var(--paper);
  border-radius: 999px;
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 760;
  min-height: 2.75rem;
  padding: 0.82rem 1.1rem;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover {
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-1px);
}

.button.secondary {
  border-color: var(--line);
  color: var(--muted);
}

.button.secondary:hover {
  border-color: var(--paper);
  color: var(--ink);
}

.button.dark {
  border-color: var(--ink);
}

.button.dark:hover {
  background: var(--ink);
  color: var(--paper);
}

.eyebrow {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.hero {
  min-height: calc(92vh - 5rem);
  padding: clamp(2rem, 5vw, 5rem) clamp(1rem, 4vw, 4rem) 4rem;
}

.window-hero {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 0.72fr) minmax(360px, 1.28fr);
  align-items: center;
}

.sniffer-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(340px, 1.22fr);
  gap: clamp(2rem, 6vw, 7rem);
  align-items: center;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.display {
  font-size: clamp(3.2rem, 6.4vw, 6.2rem);
  font-weight: 850;
  line-height: 0.92;
}

.window-lines {
  display: grid;
  gap: 0.16em;
}

.headline {
  font-size: clamp(2.7rem, 5.8vw, 5.5rem);
  font-weight: 850;
  line-height: 0.94;
}

.sniffer .headline {
  font-size: clamp(2.6rem, 4.6vw, 4.7rem);
  line-height: 0.98;
}

.subhead {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.28rem);
  line-height: 1.35;
  margin-top: 1.3rem;
  max-width: 38rem;
}

.hero-copy {
  display: grid;
  gap: 1.4rem;
  max-width: 48rem;
}

.window-hero .hero-copy {
  max-width: 35rem;
}

.alpha-note {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.surface {
  border: 1px solid rgba(243, 241, 234, 0.16);
  border-radius: 8px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.55);
  min-height: 560px;
  overflow: hidden;
  position: relative;
  background:
    linear-gradient(120deg, rgba(255,255,255,0.09), transparent 24%),
    #111317;
}

.surface::before {
  background:
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(180deg, rgba(255,255,255,0.05) 1px, transparent 1px) 0 0 / 40px 40px;
  content: "";
  inset: 0;
  opacity: 0.7;
  position: absolute;
}

.surface-context {
  color: rgba(243, 241, 234, 0.3);
  display: grid;
  font-family: var(--mono);
  font-size: clamp(0.65rem, 1.3vw, 0.86rem);
  gap: 1.2rem;
  grid-template-columns: 1fr 0.72fr;
  inset: 2rem;
  position: absolute;
}

.surface-context b {
  color: rgba(243, 241, 234, 0.52);
  display: block;
  font-family: var(--sans);
  font-size: clamp(1.2rem, 2.7vw, 2.1rem);
  margin-bottom: 0.35rem;
}

.selection {
  border: 2px solid var(--signal);
  box-shadow: 0 0 0 999px rgba(5, 6, 7, 0.62), 0 0 42px rgba(216, 255, 74, 0.24);
  height: 36%;
  left: 19%;
  position: absolute;
  top: 32%;
  width: 54%;
}

.selection::before,
.selection::after {
  background: var(--signal);
  content: "";
  height: 0.55rem;
  position: absolute;
  width: 0.55rem;
}

.selection::before {
  left: -0.32rem;
  top: -0.32rem;
}

.selection::after {
  bottom: -0.32rem;
  right: -0.32rem;
}

.handle {
  background: var(--signal);
  height: 0.55rem;
  position: absolute;
  right: -0.32rem;
  top: -0.32rem;
  width: 0.55rem;
}

.readout {
  align-items: center;
  background: var(--signal);
  color: var(--ink);
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  gap: 0.55rem;
  left: -0.12rem;
  padding: 0.45rem 0.55rem;
  position: absolute;
  top: -2.1rem;
}

.cursor {
  border-bottom: 16px solid var(--paper);
  border-left: 10px solid transparent;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.5));
  height: 0;
  left: 61%;
  position: absolute;
  top: 58%;
  transform: rotate(-38deg);
  width: 0;
}

.link-chip {
  background: var(--paper);
  border-radius: 999px;
  bottom: 2.2rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: clamp(0.66rem, 1.1vw, 0.78rem);
  left: 2rem;
  padding: 0.72rem 0.9rem;
  position: absolute;
}

.viewer-pane {
  border: 1px solid rgba(243, 241, 234, 0.26);
  bottom: 2rem;
  height: 28%;
  position: absolute;
  right: 2rem;
  width: 36%;
  background:
    linear-gradient(135deg, rgba(216, 255, 74, 0.18), rgba(142, 200, 255, 0.12)),
    #0b0d10;
}

.viewer-pane::before {
  color: var(--muted);
  content: "viewer / browser";
  font-family: var(--mono);
  font-size: 0.66rem;
  left: 0.75rem;
  position: absolute;
  top: 0.65rem;
}

.viewer-pane::after {
  border: 1px solid var(--signal);
  content: "";
  inset: 2.1rem 1rem 1rem;
  position: absolute;
}

.section {
  padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 4vw, 4rem);
}

.section.tight {
  padding-top: clamp(2.5rem, 6vw, 5rem);
}

.split {
  align-items: start;
  display: grid;
  gap: clamp(2rem, 6vw, 7rem);
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
}

.section-title {
  font-size: clamp(2rem, 4.6vw, 4.6rem);
  font-weight: 850;
  line-height: 0.98;
}

.body-large {
  color: var(--muted);
  font-size: clamp(1rem, 1.55vw, 1.22rem);
  line-height: 1.45;
}

.rail {
  border-left: 1px solid var(--line);
  display: grid;
  gap: 1.8rem;
  padding-left: clamp(1.2rem, 3vw, 2rem);
}

.rail-row {
  display: grid;
  gap: 0.4rem;
}

.rail-row strong {
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  line-height: 1.08;
}

.rail-row span,
.rail-row p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.45;
}

.flow-strip {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.flow-step {
  min-height: 16rem;
  padding: clamp(1rem, 3vw, 2rem);
  position: relative;
}

.flow-step + .flow-step {
  border-left: 1px solid var(--line);
}

.flow-step span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.74rem;
}

.flow-step strong {
  bottom: 1.4rem;
  font-size: clamp(1.7rem, 3vw, 3rem);
  left: clamp(1rem, 3vw, 2rem);
  line-height: 0.9;
  position: absolute;
}

.flow-step::after {
  color: var(--dim);
  content: ">";
  font-family: var(--mono);
  position: absolute;
  right: 1rem;
  top: 1rem;
}

.flow-step:last-child::after {
  content: "";
}

.statement-band {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(3.5rem, 7vw, 6rem) clamp(1rem, 4vw, 4rem);
}

.statement-band .section-title,
.statement-band .body-large {
  color: var(--ink);
}

.platforms {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, 1fr);
  background: var(--line);
}

.platform {
  background: var(--black);
  min-height: 15rem;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.platform strong {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.6rem);
  line-height: 0.92;
}

.plain-list {
  display: grid;
  gap: 1rem;
}

.plain-list p {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.45;
  padding-top: 1rem;
}

.plain-list strong {
  color: var(--paper);
}

.statement-band .plain-list p {
  border-color: rgba(5, 6, 7, 0.18);
  color: rgba(5, 6, 7, 0.72);
}

.statement-band .plain-list strong {
  color: var(--ink);
}

.platform span {
  color: var(--muted);
  display: block;
  margin-top: 1rem;
}

.alpha-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr 1fr;
  background: var(--line);
}

.download-row {
  background: var(--black);
  display: grid;
  gap: 1rem;
  min-height: 13rem;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.download-row code {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

.privacy-lines {
  display: grid;
  gap: 1.2rem;
  max-width: 56rem;
}

.footer {
  align-items: end;
  border-top: 1px solid var(--line);
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding: 2rem clamp(1rem, 4vw, 4rem);
}

.footer a {
  color: var(--muted);
  text-decoration: none;
}

.sniffer-window-panel {
  min-height: 520px;
  position: relative;
}

.sniffer-frame {
  border: 1px solid var(--line);
  inset: 0 0 7rem 7rem;
  position: absolute;
}

.sniffer-frame::before {
  border: 2px solid var(--signal);
  content: "";
  height: 42%;
  left: 22%;
  position: absolute;
  top: 24%;
  width: 54%;
}

.sniffer-frame::after {
  background: var(--signal);
  color: var(--ink);
  content: "Window";
  font-size: clamp(1.8rem, 4vw, 4rem);
  font-weight: 850;
  left: 22%;
  line-height: 0.9;
  padding: 0.2em 0.25em;
  position: absolute;
  top: 66%;
}

.sniffer-note {
  bottom: 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  max-width: 26rem;
  position: absolute;
  right: 0;
}

.principles {
  display: grid;
  gap: 0.8rem;
}

.principles p {
  border-top: 1px solid var(--line);
  font-size: clamp(1.25rem, 2.6vw, 2.4rem);
  font-weight: 820;
  line-height: 1.08;
  padding-top: 0.8rem;
}

.product-line {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding-top: 1.2rem;
}

.product-line h3 {
  font-size: clamp(1.7rem, 3vw, 3rem);
}

.product-line p {
  color: var(--muted);
  margin-top: 0.4rem;
}

@media (prefers-reduced-motion: no-preference) {
  .selection {
    animation: selectPulse 5s ease-in-out infinite;
  }

  .cursor {
    animation: cursorMove 5s ease-in-out infinite;
  }

  .link-chip,
  .viewer-pane {
    animation: revealSync 5s ease-in-out infinite;
  }
}

@keyframes selectPulse {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  42% { transform: translate3d(1.2%, -1.6%, 0) scale(1.025); }
}

@keyframes cursorMove {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(-38deg); }
  42% { transform: translate3d(18px, -16px, 0) rotate(-38deg); }
}

@keyframes revealSync {
  0%, 18% { opacity: 0.68; }
  44%, 82% { opacity: 1; }
  100% { opacity: 0.68; }
}

@media (max-width: 920px) {
  .window-hero,
  .sniffer-hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .surface {
    min-height: 510px;
  }

  .surface-context {
    grid-template-columns: 1fr;
  }

  .flow-strip,
  .platforms,
  .alpha-grid {
    grid-template-columns: 1fr;
  }

  .flow-step + .flow-step {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .flow-step {
    min-height: 10rem;
  }

  .flow-step strong {
    position: static;
    display: block;
    margin-top: 3rem;
  }

  .sniffer-frame {
    inset: 0 0 7rem 1rem;
  }
}

@media (max-width: 560px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .display {
    font-size: clamp(3rem, 15vw, 4.4rem);
    line-height: 0.96;
  }

  .headline {
    font-size: clamp(2.5rem, 12vw, 3.9rem);
  }

  .surface {
    min-height: 460px;
  }

  .surface-context {
    inset: 1.1rem;
  }

  .selection {
    height: 34%;
    left: 10%;
    top: 34%;
    width: 76%;
  }

  .link-chip {
    bottom: 1rem;
    left: 1rem;
    max-width: calc(100% - 2rem);
  }

  .viewer-pane {
    bottom: 4.4rem;
    height: 24%;
    right: 1rem;
    width: 56%;
  }

  .product-line {
    grid-template-columns: 1fr;
  }
}