:root {
  color-scheme: light;
  --canvas: #dfe5df;
  --paper: #f7f9f5;
  --ink: #10201a;
  --muted: #5b6962;
  --line: #c5cec6;
  --line-strong: #9eaaa1;
  --spruce: #143f35;
  --teal: #087b76;
  --signal: #a6300f;
  --white: #f5fbf7;
  --night: #061311;
  --aurora-cyan: #15d9c5;
  --aurora-blue: #3478f6;
  --aurora-violet: #7546ff;
  --page-width: 1180px;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--canvas);
  scrollbar-color: var(--spruce) var(--canvas);
}

section[id] { scroll-margin-top: 76px; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 0 12%, rgba(16, 32, 26, 0.035) 12% 12.08%, transparent 12.08% 87.92%, rgba(16, 32, 26, 0.035) 87.92% 88%, transparent 88%),
    var(--canvas);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

::selection { color: var(--night); background: var(--aurora-cyan); }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--canvas); }
::-webkit-scrollbar-thumb { background: var(--spruce); border: 3px solid var(--canvas); border-radius: 8px; }

a { color: inherit; text-decoration: none; }
button, summary { font: inherit; }
img { display: block; max-width: 100%; height: auto; }
p, h1, h2, h3, dd, summary { overflow-wrap: anywhere; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  font: 700 0.75rem/1 var(--mono);
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 4px; }

.site-header,
main,
.site-footer {
  width: 100%;
  margin-inline: auto;
  background: var(--paper);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(197, 206, 198, 0.8);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(18px) saturate(125%);
}

.nav-shell {
  width: min(100%, calc(var(--page-width) + 60px));
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-inline: auto;
  padding: 10px 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}

.brand-lockup { display: grid; gap: 2px; }
.brand-title { font-weight: 760; letter-spacing: -0.025em; }
.brand-family { color: var(--muted); font: 650 0.58rem/1.1 var(--mono); letter-spacing: 0.04em; }

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 8px 18px rgba(0, 34, 31, 0.16);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 24px);
  font-size: 0.76rem;
  font-weight: 660;
  line-height: 1;
}

.nav-links > a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-block: 12px;
  border-bottom: 1px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.nav-links > a:hover { color: var(--teal); border-color: currentColor; }

.nav-github span,
.external-link span {
  display: inline-block;
  margin-left: 5px;
  transition: transform 180ms var(--ease-out);
}

.nav-github:hover span,
.external-link:hover span { transform: translate(2px, -2px); }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 19px;
  border: 1px solid var(--ink);
  font-size: 0.78rem;
  font-weight: 740;
  letter-spacing: 0.01em;
  line-height: 1.1;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms var(--ease-out), box-shadow 180ms ease;
}

.availability-label {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font: 700 0.72rem/1.1 var(--mono);
  cursor: default;
}

.availability-label::before {
  width: 7px;
  height: 7px;
  content: "";
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--teal);
}

.button-primary { color: var(--white); background: var(--ink); }
.button-primary:hover { color: var(--white); background: var(--spruce); box-shadow: 0 10px 24px rgba(16, 32, 26, 0.18); }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }

.nav-toggle {
  display: none;
  min-width: 46px;
  min-height: 46px;
  align-items: center;
  gap: 10px;
  border: 0;
  color: var(--ink);
  background: transparent;
  font: 700 0.75rem/1 var(--mono);
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after { width: 18px; height: 1px; display: block; background: currentColor; }
.nav-toggle-icon { position: relative; }
.nav-toggle-icon::before,
.nav-toggle-icon::after { content: ""; position: absolute; left: 0; }
.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after { top: 6px; }

.hero {
  position: relative;
  min-height: calc(100vh - 74px);
  min-height: calc(100svh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  place-content: center;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(92px, 12vw, 150px) max(24px, calc((100vw - var(--page-width)) / 2 + 48px)) 146px;
  color: var(--white);
  text-align: center;
  background: var(--night);
}

.hero::after {
  position: absolute;
  right: 28px;
  bottom: 24px;
  left: 28px;
  z-index: -1;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(117, 255, 230, 0.48), transparent);
  transform-origin: right center;
  animation: signal-pulse 6s ease-in-out infinite;
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 70%, rgba(10, 123, 115, 0.15), transparent 43%),
    linear-gradient(180deg, #050d0d 0%, #061816 72%, #07110f 100%);
}

.aurora-ribbon {
  position: absolute;
  width: 88%;
  height: 38%;
  filter: blur(44px);
  opacity: 0.38;
  will-change: transform;
  animation: aurora-drift 18s var(--ease-out) infinite;
}

.aurora-ribbon-one {
  top: 3%;
  left: 6%;
  background: linear-gradient(105deg, transparent 4%, var(--aurora-cyan) 33%, var(--aurora-blue) 64%, transparent 92%);
  border-radius: 48% 52% 42% 58%;
}

.aurora-ribbon-two {
  top: 28%;
  left: 18%;
  height: 26%;
  opacity: 0.3;
  background: linear-gradient(95deg, transparent 8%, var(--aurora-violet) 38%, var(--aurora-cyan) 72%, transparent 96%);
  border-radius: 58% 42% 55% 45%;
  animation-duration: 24s;
  animation-direction: reverse;
}

.cursor-field {
  --pointer-x: 50vw;
  --pointer-y: 42vh;
  position: absolute;
  top: 0;
  left: 0;
  width: min(54vw, 660px);
  aspect-ratio: 1;
  pointer-events: none;
  opacity: 0.12;
  background:
    radial-gradient(circle at center, rgba(107, 247, 225, 0.3), rgba(52, 120, 246, 0.14) 32%, rgba(117, 70, 255, 0.08) 48%, transparent 70%);
  filter: blur(14px);
  transform: translate3d(var(--pointer-x), var(--pointer-y), 0) translate(-50%, -50%);
  transition: opacity 500ms ease;
  will-change: transform;
}

.hero.is-pointer-active .cursor-field { opacity: 0.52; }

.field-grid {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image:
    linear-gradient(rgba(148, 225, 208, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 225, 208, 0.12) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

@keyframes aurora-drift {
  0%, 100% { transform: translate3d(-4%, 0, 0) rotate(-8deg) scale(1); }
  50% { transform: translate3d(7%, 4%, 0) rotate(-2deg) scale(1.08); }
}

@keyframes signal-pulse {
  0%, 100% { opacity: 0.45; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1); }
}

.hero h1,
.hero-copy,
.hero-actions,
.hero-signal { position: relative; z-index: 1; }

.hero h1 {
  width: 100%;
  max-width: 970px;
  margin: 0 auto 28px;
  font-size: clamp(3.35rem, 7.5vw, 5.8rem);
  font-weight: 780;
  line-height: 0.91;
  letter-spacing: -0.04em;
  text-wrap: balance;
  text-shadow: 0 12px 42px rgba(0, 0, 0, 0.3);
}

.hero-copy {
  width: 100%;
  max-width: 690px;
  margin: 0 auto;
  color: #c7d8d1;
  font-size: clamp(1.08rem, 2vw, 1.25rem);
  line-height: 1.58;
  text-wrap: balance;
}

.hero-actions { display: flex; justify-content: center; gap: 16px; margin-top: 36px; }

.hero .button-primary {
  color: var(--night);
  background: var(--aurora-cyan);
  border-color: var(--aurora-cyan);
  box-shadow: 0 12px 22px rgba(0, 0, 0, 0.24);
}

.hero .button-primary:hover {
  color: var(--night);
  background: #6ef3e2;
  box-shadow: 0 16px 26px rgba(0, 0, 0, 0.3);
}

.hero .availability-label {
  min-height: 48px;
  padding: 0 18px;
  color: #d4e1dc;
  border: 1px solid rgba(221, 246, 237, 0.28);
  background: rgba(5, 19, 17, 0.36);
  backdrop-filter: blur(8px);
}

.hero .availability-label::before { background: var(--aurora-cyan); }

.hero-signal {
  position: absolute;
  right: 34px;
  bottom: 38px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: #9fb5ad;
  font: 650 0.7rem/1.3 var(--mono);
  letter-spacing: 0.06em;
}

.hero-signal > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--aurora-cyan);
}

.eyebrow,
.stage-index {
  margin: 0;
  color: var(--teal);
  font: 650 0.75rem/1.4 var(--mono);
  letter-spacing: 0.12em;
}

.product-stage {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(320px, 1.16fr);
  gap: clamp(34px, 6vw, 80px);
  min-height: calc(100vh - 74px);
  min-height: calc(100svh - 74px);
  margin: 0;
  padding: clamp(44px, 5vh, 64px) max(26px, calc((100vw - var(--page-width)) / 2 + 54px));
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 16%, rgba(52, 120, 246, 0.3), transparent 30%),
    radial-gradient(circle at 42% 68%, rgba(21, 217, 197, 0.2), transparent 37%),
    var(--night);
  border: 0;
}

.product-stage::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(117, 255, 230, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(117, 255, 230, 0.2) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(120deg, transparent 20%, black, transparent 82%);
}

.product-stage::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 0;
  height: clamp(52px, 7vw, 96px);
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(238, 242, 237, 0.16));
}

.stage-copy,
.device-capture { position: relative; z-index: 1; }
.stage-copy { align-self: center; }

.stage-copy::before {
  display: block;
  width: 10px;
  height: 2px;
  margin-bottom: 28px;
  content: "";
  background: var(--aurora-cyan);
  box-shadow: 18px 0 0 var(--aurora-blue), 36px 0 0 var(--aurora-violet);
}

.stage-copy h2 {
  max-width: 500px;
  margin: 0 0 22px;
  font-size: clamp(2.45rem, 4.5vw, 3.9rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.stage-copy > p:not(.stage-index) { max-width: 410px; margin: 0; color: #bfd0c9; font-size: 1rem; line-height: 1.65; }
.stage-notes { margin: 40px 0 0; border-top: 1px solid rgba(255, 255, 255, 0.2); }
.stage-notes div { display: grid; grid-template-columns: 90px 1fr; gap: 18px; padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.2); font: 0.75rem/1.45 var(--mono); }
.stage-notes dt { color: #9fb4ab; }
.stage-notes dd { margin: 0; }

.device-capture {
  width: min(100%, 320px);
  margin: 0 auto;
  align-self: end;
  transform: perspective(1100px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translate3d(0, var(--lift-y, 0px), 0);
  transform-style: preserve-3d;
  transition: transform 500ms var(--ease-out);
}

.device-capture::before {
  position: absolute;
  inset: 9% -14% 4%;
  z-index: -1;
  content: "";
  background: radial-gradient(ellipse, rgba(21, 217, 197, 0.24), rgba(52, 120, 246, 0.14) 42%, transparent 72%);
  filter: blur(26px);
}

.device-capture img { width: 100%; border: 8px solid #15201d; border-radius: 42px; box-shadow: 0 36px 88px rgba(0, 0, 0, 0.5); }
.device-capture figcaption { margin-top: 14px; color: #97aaa2; font: 0.76rem/1.45 var(--mono); text-align: center; letter-spacing: 0.015em; }

.faq-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(48px, 8vw, 108px);
  padding: clamp(82px, 10vw, 124px) max(26px, calc((100vw - var(--page-width)) / 2 + 54px));
  border-bottom: 1px solid var(--line);
}

.section-intro h2,
.story-section h2,
.species-copy h2 {
  margin: 0 0 24px;
  font-size: clamp(2.45rem, 5vw, 4.45rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.section-intro > p:not(.eyebrow),
.story-section > p:not(.eyebrow) { max-width: 500px; margin: 0; color: var(--muted); line-height: 1.65; }

.species-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  min-height: calc(100svh - 74px);
  margin: 0;
  overflow: hidden;
  color: var(--white);
  background: var(--night);
  border: 0;
}

.species-visual {
  position: relative;
  min-height: calc(100svh - 74px);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(21, 217, 197, 0.16), transparent 42%),
    linear-gradient(315deg, rgba(117, 70, 255, 0.16), transparent 46%),
    linear-gradient(rgba(135, 217, 201, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(135, 217, 201, 0.1) 1px, transparent 1px),
    #071713;
  background-size: auto, auto, 42px 42px, 42px 42px, auto;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.species-visual::before,
.species-visual::after { position: absolute; content: ""; border: 1px solid rgba(117, 255, 230, 0.38); }
.species-visual::before { inset: 76px 52px 128px; }
.species-visual::after { inset: 114px 88px 166px; border-color: rgba(117, 70, 255, 0.34); }

.species-pixel-art {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: min(52%, 280px);
  color: rgba(117, 255, 230, 0.72);
  transform: translate(-50%, -54%);
}

.pixel-frame { fill: none; stroke: currentColor; stroke-width: 4px; }
.pixel-animal { fill: var(--white); }
.pixel-cut { fill: var(--night); }
.pixel-signal { fill: var(--aurora-cyan); }

.species-caption { position: absolute; right: 34px; bottom: 34px; left: 34px; z-index: 2; color: #a9beb5; font: 650 0.72rem/1.4 var(--mono); letter-spacing: 0.04em; text-align: center; }
.scan-line { position: absolute; top: 118px; right: 70px; left: 70px; z-index: 3; height: 1px; background: var(--aurora-cyan); box-shadow: 0 12px 34px rgba(0, 0, 0, 0.28); animation: scan-pass 7.5s ease-in-out infinite; }

@keyframes scan-pass {
  0% { transform: translateY(-12px); opacity: 0; }
  15%, 85% { opacity: 0.8; }
  100% { transform: translateY(220px); opacity: 0; }
}

.species-copy { display: grid; align-content: center; padding: clamp(44px, 6vw, 72px); }
.species-copy h2 { order: 1; }
.species-copy > p:not(.eyebrow) { order: 2; max-width: 500px; margin: 0; color: #bfd0c9; line-height: 1.65; }
.species-copy .eyebrow { order: 3; margin-top: 34px; color: #78e6d7; }
.species-copy .text-link { order: 4; justify-self: start; color: var(--white); }

.story-section { position: relative; overflow: hidden; padding: clamp(90px, 12vw, 142px) 54px; text-align: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.story-section::before { position: absolute; top: -150px; left: 50%; width: 520px; height: 260px; content: ""; pointer-events: none; background: radial-gradient(ellipse, rgba(21, 217, 197, 0.16), transparent 70%); transform: translateX(-50%); }
.story-section h2 { max-width: 900px; margin-inline: auto; }
.story-section > p:not(.eyebrow) { max-width: 720px; margin-inline: auto; color: var(--muted); line-height: 1.65; }

.text-link { display: inline-flex; min-height: 44px; align-items: center; margin-top: 30px; padding-bottom: 3px; border-bottom: 1px solid currentColor; font-size: 0.78rem; font-weight: 730; line-height: 1.3; text-underline-offset: 4px; transition: color 180ms ease, border-color 180ms ease; }
.text-link:hover { color: var(--teal); }
.contact-menu { width: min(100%, 470px); margin: 30px auto 0; border-block: 1px solid var(--line-strong); text-align: left; }
.contact-menu summary { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 2px; cursor: pointer; list-style: none; font-weight: 730; transition: color 180ms ease; }
.contact-menu summary::-webkit-details-marker { display: none; }
.contact-menu summary:hover { color: var(--teal); }
.contact-toggle { position: relative; width: 14px; height: 14px; flex: 0 0 auto; color: var(--teal); transition: transform 220ms var(--ease-out); }
.contact-toggle::before,
.contact-toggle::after { position: absolute; top: 50%; left: 50%; width: 14px; height: 2px; content: ""; background: currentColor; transform: translate(-50%, -50%); }
.contact-toggle::after { transform: translate(-50%, -50%) rotate(90deg); }
.contact-menu[open] .contact-toggle { transform: rotate(45deg); }
.contact-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.contact-options a { min-height: 72px; display: grid; align-content: center; gap: 4px; padding: 14px 18px; font-weight: 720; transition: color 180ms ease, background-color 180ms ease; }
.contact-options a + a { border-left: 1px solid var(--line); }
.contact-options small { color: var(--muted); font: 0.72rem/1.4 var(--mono); overflow-wrap: anywhere; }

.compact h2 { font-size: clamp(2.3rem, 4vw, 3.55rem); }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { position: relative; padding: 24px 44px 24px 0; cursor: pointer; list-style: none; font-weight: 710; transition: color 180ms ease; }
.faq-list summary:hover { color: var(--teal); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; right: 4px; content: "+"; color: var(--teal); font: 1.2rem/1 var(--mono); transition: transform 220ms var(--ease-out); }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { max-width: 620px; margin: -4px 0 24px; color: var(--muted); line-height: 1.6; }

.site-footer { display: grid; grid-template-columns: auto 1fr auto auto; gap: 26px; align-items: center; padding: 28px 30px; border-top: 0; color: var(--muted); font: 0.72rem/1.4 var(--mono); }
.site-footer p { margin: 0; }
.footer-brand { min-height: 44px; color: var(--ink); font-family: var(--sans); font-size: 0.92rem; }
.footer-brand img { width: 28px; height: 28px; border-radius: 8px; }
.footer-project { min-height: 44px; display: inline-flex; align-items: center; justify-self: start; gap: 9px; color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.footer-project img { width: 24px; height: 24px; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: underline; text-underline-offset: 4px; }

.motion-ready [data-reveal] {
  opacity: 0;
  filter: blur(7px);
  transform: translateY(28px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out), filter 700ms ease;
}

.motion-ready [data-reveal].is-visible { opacity: 1; filter: blur(0); transform: translateY(0); }
.motion-ready .hero-copy[data-reveal] { transition-delay: 90ms; }
.motion-ready .hero-actions[data-reveal] { transition-delay: 170ms; }
.motion-ready .hero-signal[data-reveal] { transition-delay: 260ms; }
.motion-ready .device-capture[data-reveal] { transform: perspective(1100px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translate3d(0, var(--lift-y, 0px), 0); }

@media (hover: hover) and (pointer: fine) {
  .contact-options a:hover { color: var(--teal); background: rgba(8, 123, 118, 0.055); }
}

@media (max-width: 800px) {
  .nav-shell { padding-inline: 20px; }
  .nav-toggle { display: inline-flex; }

  .nav-links { position: absolute; top: 100%; right: 0; left: 0; display: none; align-items: stretch; padding: 10px 20px 20px; color: var(--ink); background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 22px 44px rgba(16, 32, 26, 0.12); }
  .nav-links.is-open { display: grid; gap: 0; }
  .nav-links > a { padding: 16px 0; border-bottom: 1px solid var(--line); }
  .hero { min-height: calc(100svh - 74px); padding: 96px 24px 126px; }
  .hero-actions { width: min(100%, 410px); margin-inline: auto; flex-direction: column; }
  .button { width: 100%; }
  .hero .availability-label { width: 100%; justify-content: center; }
  .hero-signal { right: 24px; bottom: 34px; left: 24px; justify-content: center; }

  .product-stage { grid-template-columns: 1fr; min-height: auto; margin: 0; padding: 72px 26px; }
  .device-capture { width: min(100%, 320px); }

  .faq-section { grid-template-columns: 1fr; padding: 82px 26px; }
  .species-section { grid-template-columns: 1fr; min-height: auto; margin: 0; }
  .species-visual { min-height: 390px; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }

  .story-section { padding-inline: 26px; }
  .site-footer { grid-template-columns: 1fr; gap: 8px; padding: 28px 22px; }
}

@media (max-width: 520px) {
  .brand-title { font-size: 0.98rem; }
  .nav-toggle-label { display: none; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .hero-copy { font-size: 1rem; }
  .hero-signal { font-size: 0.62rem; letter-spacing: 0.035em; }

  .species-visual { min-height: 320px; }
  .species-visual::before { inset: 48px 30px 98px; }
  .species-visual::after { inset: 78px 58px 128px; }
  .scan-line { top: 76px; right: 44px; left: 44px; }
  .species-copy { padding: 42px 26px; }

  .contact-options { grid-template-columns: 1fr; }
  .contact-options a + a { border-top: 1px solid var(--line); border-left: 0; }
  .external-link { max-width: 100%; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .aurora-ribbon,
  .cursor-field,
  .hero::after,
  .hero-signal > span,
  .scan-line { animation: none !important; }

  .motion-ready [data-reveal] { opacity: 1; filter: none; transform: none; }
  .device-capture { transform: none !important; }
  .cursor-field { display: none; }
}