@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --midnight-blue: #131313;
  --graphite-blue: #1c1c1c;
  --mist-white: #e5e2e1;
  --soft-gray: #8b919e;
  --deep-gray-text: #c1c6d4;
  --glacier-cyan: #a5c8ff;
  --cool-teal: #1976d2;
  --signal-teal: #00bcbc;
  --panel-bg: #20201f;
  --border-soft: #414752;
  --shadow-soft: none;
  --radius-lg: 16px;
  --radius-md: 12px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --surface-container-lowest: #0e0e0e;
  --surface-container-low: #1b1b1b;
  --surface-container-high: #2a2a2a;
  --surface-container-highest: #353535;
  --outline: #8b919e;
  --header-bg: rgba(19, 19, 19, 0.86);
  --header-border: rgba(65, 71, 82, 0.8);
  --overlay-scrim: rgba(0, 0, 0, 0.58);
  --motion-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-snap: cubic-bezier(0.2, 0, 0, 1);
}

body[data-theme="light"] {
  --midnight-blue: #f4f6fb;
  --graphite-blue: #eef2f8;
  --mist-white: #111827;
  --soft-gray: #667085;
  --deep-gray-text: #344054;
  --panel-bg: #ffffff;
  --border-soft: #d5dbe6;
  --shadow-soft: none;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f7f9fc;
  --surface-container-high: #eef2f8;
  --surface-container-highest: #e7ecf4;
  --outline: #aab6c8;
  --glacier-cyan: #005faf;
  --cool-teal: #1976d2;
  --signal-teal: #008383;
  --header-bg: rgba(244, 246, 251, 0.9);
  --header-border: rgba(168, 180, 197, 0.58);
  --overlay-scrim: rgba(10, 21, 40, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--deep-gray-text);
  background: var(--midnight-blue);
  line-height: 1.55;
}

.bg-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(25, 118, 210, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 118, 210, 0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.42;
  animation: field-pan 34s linear infinite;
}

body[data-theme="light"] .bg-atmosphere {
  opacity: 0.3;
}

.bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.92;
}

body[data-theme="light"] .bg-canvas {
  opacity: 0.74;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(12px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  animation: header-settle 720ms var(--motion-ease) both;
  transition: background-color 240ms ease, border-color 240ms ease;
}

.nav-shell {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--mist-white);
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-logo {
  width: 252px;
  height: 46px;
  display: block;
  object-fit: contain;
  object-position: left center;
  transition: opacity 220ms ease, transform 420ms var(--motion-ease);
}

.brand:hover .brand-logo {
  transform: translateX(2px);
}

.main-nav {
  display: inline-flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.main-nav a {
  text-decoration: none;
  color: var(--deep-gray-text);
  font-weight: 600;
  font-size: 0.94rem;
  transition: color 180ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--mist-white);
}

.main-nav a.active {
  color: var(--mist-white);
  position: relative;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: var(--cool-teal);
  transform-origin: left center;
  animation: nav-mark 420ms var(--motion-ease) both;
}

.menu-btn {
  display: none;
  border: 1px solid var(--border-soft);
  background: var(--surface-container-low, #1b1b1b);
  color: var(--mist-white);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 600;
  font-family: inherit;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.chip-btn {
  border: 1px solid var(--border-soft);
  background: var(--surface-container-low);
  color: var(--mist-white);
  border-radius: 999px;
  min-height: 38px;
  padding: 0 14px;
  font-size: 0.84rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms var(--motion-ease);
}

.chip-btn:hover {
  background: var(--surface-container-high);
  transform: translateY(-1px);
}

.user-menu {
  position: relative;
}

.avatar-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  background: #1976d2;
  color: var(--mist-white);
  font-weight: 700;
  cursor: pointer;
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 190px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: var(--surface-container-lowest);
  box-shadow: none;
  padding: 10px;
  display: none;
  z-index: 40;
}

.user-dropdown.open {
  display: block;
}

.user-name {
  margin: 0 0 8px;
  padding: 6px 8px 10px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.86rem;
  color: var(--deep-gray-text);
  word-break: break-all;
}

.user-dropdown a,
.user-dropdown button {
  width: 100%;
  display: block;
  border: 0;
  background: transparent;
  text-align: left;
  padding: 9px 8px;
  border-radius: 8px;
  color: var(--mist-white);
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
}

.user-dropdown a:hover,
.user-dropdown button:hover {
  background: rgba(25, 118, 210, 0.14);
}

.screen {
  padding: 88px 0;
}

.hero-screen {
  position: relative;
  overflow: hidden;
  padding-top: clamp(72px, 8vw, 112px);
  padding-bottom: clamp(72px, 7vw, 104px);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: clamp(0.9rem, 1.1vw, 1.02rem);
  color: var(--glacier-cyan);
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--mist-white);
}

h1 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(2.2rem, 4.2vw, 4rem);
  line-height: 1.1;
  max-width: 18ch;
  text-wrap: balance;
}

h2 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(1.65rem, 2.45vw, 2.25rem);
  line-height: 1.16;
  max-width: 22ch;
  margin-bottom: var(--space-4);
}

h3 {
  font-size: 1.25rem;
  line-height: 1.2;
  margin-bottom: 10px;
}

.lead {
  font-size: 1.08rem;
  max-width: 62ch;
  margin: var(--space-3) 0;
  color: var(--deep-gray-text);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  align-items: center;
}

.hero-visual {
  --hero-x: 0px;
  --hero-y: 0px;
  min-height: 420px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-lowest);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transition: border-color 260ms ease, transform 420ms var(--motion-ease);
}

.hero-visual:hover {
  border-color: rgba(25, 118, 210, 0.78);
}

.hero-image-slot {
  position: absolute;
  inset: 24px;
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  background: var(--surface-container-low);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero-stage {
  transform: translate3d(var(--hero-x), var(--hero-y), 0);
  transition: transform 520ms var(--motion-ease);
  isolation: isolate;
}

.hero-stage::before,
.hero-stage::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero-stage::before {
  inset: 18px;
  border: 1px solid rgba(25, 118, 210, 0.42);
  border-radius: 12px;
  animation: stage-frame 6.2s var(--motion-snap) infinite;
}

.hero-stage::after {
  left: 9%;
  right: 9%;
  top: 50%;
  height: 1px;
  background: var(--cool-teal);
  opacity: 0.42;
  transform: scaleX(0);
  transform-origin: left center;
  animation: signal-sweep 4.8s var(--motion-snap) infinite;
}

.stage-mesh,
.stage-orbit,
.stage-rail,
.stage-node {
  position: absolute;
  pointer-events: none;
}

.stage-mesh {
  inset: -1px;
  background-image:
    linear-gradient(rgba(139, 145, 158, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 145, 158, 0.18) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.36;
  animation: mesh-drift 18s linear infinite;
}

.stage-orbit {
  border: 1px solid rgba(165, 200, 255, 0.26);
  border-radius: 14px;
  inset: 18%;
  animation: orbit-breathe 5.8s var(--motion-ease) infinite;
}

.orbit-b {
  inset: 30%;
  border-color: rgba(0, 188, 188, 0.34);
  animation-delay: -2s;
}

.stage-rail {
  background: var(--cool-teal);
  opacity: 0.62;
}

.rail-a,
.rail-c {
  height: 1px;
  left: 12%;
  right: 12%;
  transform-origin: left center;
  animation: rail-pulse 5.4s var(--motion-snap) infinite;
}

.rail-a {
  top: 24%;
}

.rail-c {
  bottom: 24%;
  animation-delay: -1.8s;
}

.rail-b {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
  background: var(--signal-teal);
  transform-origin: top center;
  animation: rail-pulse-y 6.2s var(--motion-snap) infinite;
}

.stage-node {
  width: 14px;
  height: 14px;
  border: 1px solid var(--glacier-cyan);
  border-radius: 5px;
  background: var(--surface-container-lowest);
  animation: node-lock 4.8s var(--motion-ease) infinite;
}

.node-a {
  top: 20%;
  left: 16%;
}

.node-b {
  top: 20%;
  right: 16%;
  animation-delay: -1.2s;
}

.node-c {
  bottom: 20%;
  left: 22%;
  animation-delay: -2.4s;
}

.node-d {
  bottom: 20%;
  right: 22%;
  animation-delay: -3.6s;
}

.hero-main-logo {
  max-width: min(96%, 640px);
  height: auto;
  object-fit: contain;
  position: relative;
  z-index: 2;
  animation: logo-arrive 1100ms var(--motion-ease) both, logo-idle 7s ease-in-out 1200ms infinite;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: var(--space-3);
}

.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 999px;
  padding: 0 22px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.94rem;
  transition: transform 180ms var(--motion-ease), background-color 180ms ease, border-color 180ms ease;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 253, 255, 0.12);
  transform: translateX(-105%);
  transition: transform 520ms var(--motion-ease);
}

.btn:hover::after {
  transform: translateX(105%);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible,
.menu-btn:focus-visible,
.main-nav a:focus-visible,
.chip-btn:focus-visible,
.avatar-btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--glacier-cyan);
  outline-offset: 2px;
}

.btn-primary {
  color: #fffdff;
  background: #1976d2;
  box-shadow: none;
}

.btn-primary:hover {
  background: #005faf;
}

.btn-ghost {
  border-color: var(--border-soft);
  color: var(--mist-white);
  background: var(--surface-container-low);
}

.btn-ghost:hover {
  background: var(--surface-container-high);
  border-color: #1976d2;
}

.why-grid,
.value-grid,
.scenario-grid {
  display: grid;
  gap: var(--space-3);
}

.why-grid {
  grid-template-columns: repeat(3, 1fr);
}

.value-grid,
.scenario-grid {
  grid-template-columns: repeat(2, 1fr);
}

.card,
.scenario-card,
.layer-card,
.boundary-panel,
.closing-shell {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--panel-bg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(6px);
  transition: transform 260ms var(--motion-ease), border-color 260ms ease, background-color 260ms ease;
}

.card::before,
.scenario-card::before,
.layer-card::before,
.boundary-panel::before,
.closing-shell::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 0;
  height: 2px;
  background: var(--cool-teal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 320ms var(--motion-ease);
}

.card:hover,
.scenario-card:hover,
.layer-card:hover,
.boundary-panel:hover,
.closing-shell:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 118, 210, 0.72);
}

.card:hover::before,
.scenario-card:hover::before,
.layer-card:hover::before,
.boundary-panel:hover::before,
.closing-shell:hover::before {
  transform: scaleX(1);
}

.card,
.layer-card,
.scenario-card {
  padding: var(--space-3);
}

.card p,
.layer-card p,
.scenario-card p,
.value-card p,
.boundary-panel p,
.support-card p,
.product-card p,
.device-card p {
  color: var(--deep-gray-text);
}

.layer-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: var(--space-2);
}

.layer-kicker {
  margin: 0 0 10px;
  font-size: 0.86rem;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--glacier-cyan);
  font-weight: 700;
}

.arrow {
  align-self: center;
  color: rgba(193, 198, 212, 0.5);
  font-size: 1.4rem;
  animation: arrow-flow 2.8s ease-in-out infinite;
}

.scenario-art {
  position: relative;
  overflow: hidden;
  height: 146px;
  border-radius: 12px;
  margin-bottom: var(--space-2);
  border: 1px solid var(--border-soft);
  background-size: cover;
}

.scenario-art::before,
.scenario-art::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.scenario-art::before {
  inset: 18px;
  border: 1px solid rgba(229, 226, 225, 0.2);
  border-radius: 10px;
  animation: stage-frame 6.6s var(--motion-snap) infinite;
}

.scenario-art::after {
  width: 46%;
  height: 1px;
  left: 22%;
  top: 52%;
  background: var(--signal-teal);
  transform-origin: left center;
  animation: rail-pulse 4.4s var(--motion-snap) infinite;
}

.art-a {
  background: #1f2f46;
}

.art-b {
  background: #163b5f;
}

.art-c {
  background: #004f4f;
}

.art-d {
  background: #2f3238;
}

.privacy-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4);
  align-items: start;
}

.boundary-panel {
  padding: var(--space-3);
  position: relative;
}

.path-line {
  position: absolute;
  top: 36px;
  right: 22px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  animation: orbit-breathe 5s var(--motion-ease) infinite;
}

.boundary-step,
.boundary-split,
.boundary-arrow {
  text-align: center;
  margin: 8px 0;
  font-size: 0.9rem;
}

.boundary-step {
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--surface-container-low);
  color: var(--mist-white);
}

.boundary-step.active {
  border-color: #1976d2;
  background: rgba(25, 118, 210, 0.18);
  animation: boundary-lock 3.8s ease-in-out infinite;
}

.boundary-split {
  color: var(--cool-teal);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.boundary-arrow {
  color: rgba(193, 198, 212, 0.54);
}

.closing-screen {
  padding-top: 96px;
  padding-bottom: 112px;
}

.closing-shell {
  padding: clamp(30px, 4vw, 54px);
}

.join-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--space-3);
}

.join-form input {
  min-height: 46px;
  flex: 1 1 260px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  padding: 0 18px;
  font: inherit;
  background: var(--surface-container-low);
  color: var(--mist-white);
}

.join-form input::placeholder {
  color: var(--soft-gray);
}

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: var(--space-4) 0;
  background: var(--surface-container-lowest);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.footer-info {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.footer-info p {
  margin: 0;
  color: var(--soft-gray);
  font-size: 0.92rem;
}

.footer-info a {
  color: var(--soft-gray);
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-grid a {
  color: var(--deep-gray-text);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-grid a:hover {
  color: var(--mist-white);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--overlay-scrim);
  z-index: 60;
  padding: 16px;
}

.modal-panel {
  width: min(460px, 100%);
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  background: var(--surface-container-lowest);
  box-shadow: none;
  padding: 20px 20px 24px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  background: var(--surface-container-low);
  color: var(--mist-white);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

.modal-note {
  margin: 10px 0 16px;
  color: var(--deep-gray-text);
  font-size: 0.95rem;
}

.login-form {
  display: grid;
  gap: 10px;
}

.login-form label {
  font-size: 0.86rem;
  color: var(--deep-gray-text);
  font-weight: 600;
}

.login-form input {
  min-height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  padding: 0 12px;
  font: inherit;
  background: var(--surface-container-low);
  color: var(--mist-white);
}

.hidden {
  display: none !important;
}

.device-main {
  padding: 86px 0 100px;
}

.device-head {
  margin-bottom: 24px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.product-card {
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  background: var(--panel-bg);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.product-row {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 16px;
  align-items: stretch;
}

.product-info {
  min-width: 0;
}

.param-title {
  margin: 14px 0 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--mist-white);
}

.param-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 5px;
}

.param-list li {
  color: var(--deep-gray-text);
  font-size: 0.9rem;
}

.product-visual {
  border-radius: 12px;
  border: 1px dashed var(--border-soft);
  min-height: 170px;
  display: grid;
  place-items: center;
  background: var(--surface-container-low);
}

.product-visual span {
  font-size: 0.86rem;
  color: var(--soft-gray);
  text-transform: uppercase;
  letter-spacing: 0;
}

.device-card {
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  background: var(--panel-bg);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.device-card h3 {
  margin-bottom: 6px;
}

.device-meta {
  margin: 0;
  color: var(--deep-gray-text);
  font-size: 0.9rem;
}

.device-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  font-size: 0.78rem;
  border-radius: 999px;
  min-height: 26px;
  padding: 0 12px;
  line-height: 1;
  text-align: center;
  vertical-align: middle;
  font-weight: 700;
  color: #fffdff;
  background: #1976d2;
}

.product-row .cta-row {
  align-items: center;
}

.support-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.support-card {
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  background: var(--panel-bg);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.feedback-form {
  display: grid;
  gap: 10px;
}

.feedback-form label {
  font-size: 0.86rem;
  color: var(--deep-gray-text);
  font-weight: 600;
}

.feedback-form input,
.feedback-form select,
.feedback-form textarea {
  min-height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  padding: 0 12px;
  font: inherit;
  background: var(--surface-container-low);
  color: var(--mist-white);
}

.feedback-form option {
  background: var(--surface-container-lowest);
  color: var(--mist-white);
}

.feedback-form textarea {
  min-height: 120px;
  padding-top: 10px;
  resize: vertical;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 760ms var(--motion-ease), transform 760ms var(--motion-ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal .reveal-part {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 720ms var(--motion-ease), transform 720ms var(--motion-ease);
  transition-delay: calc(var(--reveal-index, 0) * 70ms);
}

.reveal.is-visible .reveal-part {
  opacity: 1;
  transform: translateY(0);
}

@keyframes field-pan {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 64px 64px;
  }
}

@keyframes header-settle {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes nav-mark {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes mesh-drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 42px 42px;
  }
}

@keyframes stage-frame {
  0%,
  100% {
    opacity: 0.34;
    transform: scale(1);
  }
  50% {
    opacity: 0.72;
    transform: scale(0.985);
  }
}

@keyframes orbit-breathe {
  0%,
  100% {
    opacity: 0.34;
    transform: scale(1);
  }
  50% {
    opacity: 0.78;
    transform: scale(1.035);
  }
}

@keyframes signal-sweep {
  0% {
    opacity: 0;
    transform: scaleX(0);
  }
  18%,
  62% {
    opacity: 0.48;
    transform: scaleX(1);
  }
  100% {
    opacity: 0;
    transform: scaleX(1);
  }
}

@keyframes rail-pulse {
  0%,
  100% {
    opacity: 0.18;
    transform: scaleX(0.18);
  }
  48% {
    opacity: 0.76;
    transform: scaleX(1);
  }
}

@keyframes rail-pulse-y {
  0%,
  100% {
    opacity: 0.18;
    transform: scaleY(0.18);
  }
  48% {
    opacity: 0.76;
    transform: scaleY(1);
  }
}

@keyframes node-lock {
  0%,
  100% {
    opacity: 0.52;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.18);
  }
}

@keyframes logo-arrive {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes logo-idle {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

@keyframes arrow-flow {
  0%,
  100% {
    opacity: 0.34;
    transform: translateX(0);
  }
  50% {
    opacity: 0.82;
    transform: translateX(3px);
  }
}

@keyframes arrow-flow-mobile {
  0%,
  100% {
    opacity: 0.34;
    transform: rotate(90deg) translateX(0);
  }
  50% {
    opacity: 0.82;
    transform: rotate(90deg) translateX(3px);
  }
}

@keyframes boundary-lock {
  0%,
  100% {
    border-color: rgba(25, 118, 210, 0.58);
  }
  50% {
    border-color: rgba(0, 188, 188, 0.78);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0, 0, 0, 0);
}

@media (max-width: 1050px) {
  .hero-grid,
  .privacy-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }

  .layer-flow {
    grid-template-columns: 1fr;
  }

  .arrow {
    transform: rotate(90deg);
    justify-self: center;
    animation: arrow-flow-mobile 2.8s ease-in-out infinite;
  }
}

@media (max-width: 860px) {
  .container {
    width: min(1200px, calc(100% - 32px));
  }

  .menu-btn {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    padding: 14px 16px 20px;
    background: var(--surface-container-lowest);
    border-bottom: 1px solid var(--border-soft);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-left: 0;
  }

  .main-nav.open {
    display: flex;
  }

  .header-actions {
    margin-left: auto;
  }

  .chip-btn {
    min-height: 34px;
    padding: 0 12px;
    font-size: 0.8rem;
  }

  .avatar-btn {
    width: 34px;
    height: 34px;
  }

  .brand-logo {
    width: 172px;
    height: 38px;
  }

  .why-grid,
  .value-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .screen {
    padding: 72px 0;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-info {
    max-width: 100%;
  }

  .device-grid {
    grid-template-columns: 1fr;
  }

  .product-grid,
  .support-layout {
    grid-template-columns: 1fr;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }

  .bg-canvas {
    display: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .reveal .reveal-part {
    opacity: 1;
    transform: none;
  }
}