@import "tailwindcss";

:root {
  --canvas: #f6f4ef;
  --canvas-soft: #efede7;
  --surface: #ffffff;
  --surface-raised: rgba(255, 255, 255, 0.9);
  --ink: #171b20;
  --ink-soft: #5f6970;
  --ink-faint: #899297;
  --line: #dce1de;
  --line-strong: #cbd2cf;
  --teal: #3e9c9b;
  --teal-deep: #1d5154;
  --teal-pale: #dcedea;
  --teal-wash: rgba(62, 156, 155, 0.08);
  --red: #da4d3a;
  --shadow-sm: 0 8px 24px rgba(23, 27, 32, 0.08);
  --shadow-lg: 0 28px 70px rgba(23, 27, 32, 0.14);
  --max: 1440px;
}

:root[data-theme="dark"] {
  --canvas: #091114;
  --canvas-soft: #0d171b;
  --surface: #111d21;
  --surface-raised: rgba(17, 29, 33, 0.9);
  --ink: #eef5f4;
  --ink-soft: #a9b8b8;
  --ink-faint: #758687;
  --line: #26363a;
  --line-strong: #395056;
  --teal: #58c5be;
  --teal-deep: #9ce1dc;
  --teal-pale: #173638;
  --teal-wash: rgba(88, 197, 190, 0.09);
  --red: #eb6654;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 32px 80px rgba(0, 0, 0, 0.42);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-geist-sans), Inter, ui-sans-serif, system-ui, sans-serif;
  font-feature-settings: "ss01" 1, "cv11" 1;
  text-rendering: optimizeLegibility;
}

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

button,
select {
  font: inherit;
}

button,
a,
select {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--teal) 70%, transparent);
  outline-offset: 4px;
}

svg {
  display: block;
}

.site-shell {
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent calc(25% - .5px), var(--line) 25%, transparent calc(25% + .5px)) top / 100% 100% no-repeat,
    var(--canvas);
  transition: background-color 220ms ease, color 220ms ease;
}

.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  z-index: 1000;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--canvas);
  transition: top .2s ease;
}

.skip-link:focus {
  top: 20px;
}

.site-header {
  position: relative;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(236px, 1fr) auto minmax(286px, 1fr);
  align-items: center;
  min-height: 96px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 52px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--canvas) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  font-size: 20px;
  font-weight: 710;
  letter-spacing: -0.045em;
  white-space: nowrap;
}

.brand-name b {
  color: var(--teal-deep);
  font-weight: inherit;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  overflow: hidden;
  place-items: center;
  border-radius: 9px;
  background: #050606;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.09);
}

.brand-mark img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 3.1vw, 46px);
  font-size: 14px;
  font-weight: 520;
}

.desktop-nav a,
.sign-in {
  position: relative;
  padding: 10px 0;
}

.desktop-nav a::after,
.sign-in::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--teal);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after,
.sign-in:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 13px;
  font-size: 14px;
}

.language-select {
  display: flex;
  align-items: center;
  gap: 3px;
  color: var(--ink-soft);
}

.language-select select {
  width: 43px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
}

.theme-toggle {
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.theme-toggle__track {
  position: relative;
  display: block;
  width: 45px;
  height: 25px;
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  background: var(--surface);
}

.theme-toggle__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  display: grid;
  width: 17px;
  height: 17px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--canvas);
  font-size: 10px;
  font-style: normal;
  transition: transform 220ms cubic-bezier(.22,1,.36,1);
}

:root[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(19px);
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 0 27px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

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

.button span,
.capability-card a span {
  transition: transform 180ms ease;
}

.button:hover span,
.capability-card a:hover span {
  transform: translate(3px, -2px);
}

.button--small {
  min-height: 46px;
  padding: 0 18px;
  border-radius: 7px;
}

.button--teal {
  background: var(--teal);
  color: #071a1a;
  box-shadow: 0 9px 24px rgba(62,156,155,.18);
}

.button--teal:hover {
  background: color-mix(in srgb, var(--teal) 88%, white);
  box-shadow: 0 13px 30px rgba(62,156,155,.26);
}

.button--dark {
  background: var(--ink);
  color: var(--canvas);
  box-shadow: var(--shadow-sm);
}

.button--outline {
  border-color: var(--ink-soft);
  background: color-mix(in srgb, var(--canvas) 78%, transparent);
}

.button--outline:hover {
  border-color: var(--teal);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.menu-button i {
  width: 17px;
  height: 1.5px;
  background: var(--ink);
}

.section-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding-right: 52px;
  padding-left: 52px;
}

.hero {
  position: relative;
  display: grid;
  min-height: 804px;
  grid-template-columns: minmax(0, .9fr) minmax(590px, 1.12fr);
  align-items: center;
  gap: 34px;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 182px 100%, 182px 100%;
  background-position: 52px 0;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  content: "";
  background: linear-gradient(90deg, var(--canvas) 0%, color-mix(in srgb, var(--canvas) 94%, transparent) 39%, transparent 72%);
  pointer-events: none;
}

.hero-network {
  position: absolute;
  z-index: 0;
  inset: 0 0 auto 46%;
  height: 260px;
  overflow: hidden;
  opacity: .8;
}

.hero-network i {
  position: absolute;
  width: 430px;
  height: 220px;
  border: 1px solid color-mix(in srgb, var(--teal) 34%, transparent);
  border-radius: 50%;
}

.hero-network i:nth-child(1) { top: 70px; left: 80px; }
.hero-network i:nth-child(2) { top: 35px; left: 125px; }
.hero-network i:nth-child(3) { top: 0; left: 170px; }

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 580px;
  padding: 70px 0 58px;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--teal-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 660px;
  margin: 0;
  font-size: clamp(54px, 4.5vw, 68px);
  font-weight: 690;
  letter-spacing: -.068em;
  line-height: .99;
  text-wrap: balance;
}

.hero-description {
  max-width: 540px;
  margin: 29px 0 0;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 34px;
  color: var(--ink-soft);
  font-size: 14px;
}

.trust-line span:not(:last-child)::after {
  margin: 0 12px;
  color: var(--teal);
  content: "•";
}

.dashboard-wrap {
  position: relative;
  z-index: 3;
  min-width: 0;
  transform: translateX(2px);
}

.dashboard {
  position: relative;
  display: grid;
  min-width: 650px;
  min-height: 490px;
  grid-template-columns: 78px 1fr;
  border: 1px solid var(--line-strong);
  border-radius: 17px;
  background: color-mix(in srgb, var(--surface) 93%, transparent);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(22px);
  overflow: hidden;
  animation: dashboard-enter 800ms cubic-bezier(.22,1,.36,1) both;
}

.dashboard-label {
  position: absolute;
  top: -31px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 580;
}

.dashboard-label span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2cbd70;
  box-shadow: 0 0 0 4px rgba(44,189,112,.12);
}

.dashboard-rail {
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 12px;
  padding: 22px 14px;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 76%, var(--canvas));
}

.rail-logo,
.rail-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
}

.rail-logo {
  margin-bottom: 8px;
  background: var(--teal);
  color: #fff;
}

.rail-logo .waveform i { background: #fff; }

.rail-icon {
  color: var(--ink-soft);
  font-size: 18px;
}

.rail-icon svg,
.active-call svg,
.metrics-row svg,
.flow-node svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
}

.rail-icon.is-active {
  background: var(--teal-pale);
  color: var(--teal-deep);
}

.rail-icon--bottom {
  margin-top: auto;
}

.dashboard-main {
  min-width: 0;
  padding: 26px 24px 18px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-raised);
  box-shadow: 0 8px 24px rgba(23,27,32,.045);
}

.active-call {
  display: grid;
  min-height: 110px;
  grid-template-columns: auto minmax(96px, auto) 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
}

.avatar {
  position: relative;
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal-pale), var(--canvas-soft));
  color: var(--teal-deep);
  font-size: 9px;
  font-weight: 700;
}

.avatar--large {
  width: 54px;
  height: 54px;
  font-size: 13px;
}

.presence {
  position: absolute;
  right: 0;
  bottom: 1px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: #2cbd70;
}

.call-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.call-copy small,
.panel-title {
  color: var(--ink-faint);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.call-copy strong {
  font-size: 13px;
}

.call-time {
  color: var(--teal-deep);
  font-size: 11px;
  font-weight: 660;
}

.call-actions {
  grid-column: 2 / -1;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.call-actions button {
  display: grid;
  width: 30px;
  height: 30px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 11px;
}

.call-actions .hangup {
  border-color: var(--red);
  background: var(--red);
  color: white;
}

.waveform {
  display: flex;
  height: 36px;
  align-items: center;
  justify-content: center;
  gap: 3px;
}

.waveform i {
  width: 2px;
  border-radius: 4px;
  background: var(--teal);
  animation: wave 2.8s ease-in-out infinite alternate;
}

.waveform i:nth-child(3n + 1) { animation-delay: -.8s; }
.waveform i:nth-child(3n + 2) { animation-delay: -1.7s; }

.waveform--compact {
  height: 20px;
  gap: 2px;
}

.waveform--compact i { width: 1.5px; max-height: 14px; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.25fr .62fr 1fr;
  gap: 10px;
  margin-top: 10px;
}

.flow-card,
.agent-card,
.activity-card {
  min-width: 0;
  min-height: 178px;
  padding: 14px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-title b {
  color: var(--teal-deep);
  font-size: 9px;
  text-transform: none;
}

.flow-map {
  position: relative;
  height: 132px;
}

.flow-node {
  position: absolute;
  z-index: 2;
  display: grid;
  width: 33px;
  height: 33px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 10px;
  box-shadow: 0 5px 12px rgba(23,27,32,.08);
}

.flow-node--start { top: 50px; left: 4px; background: var(--teal); color: #fff; }
.flow-node--team { top: 10px; left: 48%; }
.flow-node--bot { bottom: 5px; left: 48%; }
.flow-node--end { top: 50px; right: 0; background: var(--teal); color: #fff; }

.flow-line {
  position: absolute;
  left: 24px;
  right: 17px;
  height: 64px;
  border: 1.5px solid var(--teal);
}

.flow-line--a { top: 26px; border-right: 0; border-bottom: 0; border-radius: 20px 0 0; }
.flow-line--b { top: 67px; border-top: 0; border-left: 0; border-radius: 0 0 20px; }

.agent-card {
  padding-right: 10px;
  padding-left: 10px;
}

.agent-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 9px;
}

.agent-row .avatar {
  width: 24px;
  height: 24px;
  font-size: 8px;
}

.state {
  width: 6px;
  height: 6px;
  margin-left: auto;
  border-radius: 50%;
}

.state--online { background: #2cbd70; }
.state--away { background: #e5a52b; }
.state--offline { background: #a5adb0; }

.activity-card svg {
  width: 100%;
  margin-top: 22px;
  overflow: visible;
}

.chart-area { fill: url(#chartFill); }
.chart-line { fill: none; stroke: var(--teal); stroke-width: 2.4; }
.activity-card circle { fill: var(--surface); stroke: var(--teal); stroke-width: 2.4; }

.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.metrics-row > div {
  display: grid;
  min-width: 0;
  height: 58px;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-raised);
  color: var(--ink-soft);
  font-size: 13px;
}

.metrics-row strong { color: var(--ink); font-size: 11px; }

.route-orbit {
  position: absolute;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--teal) 34%, transparent);
  border-radius: 50%;
  animation: orbit 18s linear infinite;
}

.route-orbit--one { width: 540px; height: 540px; top: -205px; left: 190px; }
.route-orbit--two { width: 620px; height: 620px; top: -245px; left: 150px; animation-direction: reverse; animation-duration: 26s; }

.signal-node {
  position: absolute;
  z-index: 4;
  width: 8px;
  height: 8px;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 6px var(--teal-wash);
}

.signal-node--one { top: -23px; right: 16%; }
.signal-node--two { right: -8px; bottom: 80px; animation: node-pulse 3s ease-in-out infinite; }

.capabilities {
  max-width: var(--max);
  margin: 0 auto;
  padding: 132px 52px 142px;
}

.section-intro {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  column-gap: 100px;
  align-items: end;
  margin-bottom: 66px;
}

.section-intro .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: 20px;
}

.section-intro h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(44px, 5.2vw, 74px);
  font-weight: 660;
  letter-spacing: -.06em;
  line-height: 1.02;
}

.section-intro > p:last-child {
  max-width: 520px;
  margin: 0 0 6px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.65;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.capability-card {
  position: relative;
  min-height: 400px;
  padding: 36px 36px 30px;
  transition: background-color 220ms ease, transform 220ms ease;
}

.capability-card + .capability-card {
  border-left: 1px solid var(--line-strong);
}

.capability-card:hover {
  z-index: 2;
  background: var(--surface);
  transform: translateY(-5px);
  box-shadow: var(--shadow-sm);
}

.card-number {
  color: var(--ink-faint);
  font-family: var(--font-geist-mono), monospace;
  font-size: 11px;
}

.capability-icon {
  display: grid;
  width: 66px;
  height: 66px;
  margin: 46px 0 28px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--teal-deep);
  font-size: 24px;
}

.capability-icon svg {
  width: 25px;
  fill: currentColor;
}

.capability-card h3 {
  margin: 0;
  font-size: 25px;
  font-weight: 620;
  letter-spacing: -.035em;
}

.capability-card p {
  min-height: 76px;
  margin: 15px 0 26px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.65;
}

.capability-card a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  color: var(--teal-deep);
  font-size: 13px;
  font-weight: 650;
}

.protocol-strip {
  max-width: var(--max);
  margin: 0 auto;
  padding: 52px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--canvas-soft);
}

.protocol-strip p {
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.protocol-strip div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  color: var(--ink);
  font-size: clamp(20px, 2.8vw, 35px);
  font-weight: 630;
  letter-spacing: -.04em;
}

.operating-models {
  max-width: var(--max);
  margin: 0 auto;
  padding: 120px 52px;
  background: var(--ink);
  color: var(--canvas);
}

.operating-models .eyebrow { color: var(--teal); }

.model-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 54px;
}

.model-heading h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(44px, 5vw, 70px);
  font-weight: 650;
  letter-spacing: -.06em;
  line-height: 1;
}

.model-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid color-mix(in srgb, var(--canvas) 22%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--canvas) 22%, transparent);
}

.model-tabs button {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border: 0;
  background: transparent;
  color: color-mix(in srgb, var(--canvas) 55%, transparent);
  cursor: pointer;
  text-align: left;
}

.model-tabs button + button { border-left: 1px solid color-mix(in srgb, var(--canvas) 22%, transparent); }
.model-tabs button.is-active { background: var(--teal); color: #071a1a; }
.model-tabs i { font-family: var(--font-geist-mono), monospace; font-size: 11px; font-style: normal; }

.model-stage {
  display: grid;
  min-height: 350px;
  grid-template-columns: 1fr 1.25fr .72fr;
  align-items: center;
  gap: 64px;
  padding: 64px 26px 20px;
}

.stage-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.model-stage h3 { margin: 0; font-size: 36px; font-weight: 620; letter-spacing: -.045em; }
.model-stage > div > p:last-child { max-width: 440px; color: color-mix(in srgb, var(--canvas) 66%, transparent); line-height: 1.65; }

.stage-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage-diagram span {
  display: grid;
  width: 96px;
  height: 96px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--teal) 60%, transparent);
  border-radius: 50%;
  color: var(--teal);
  font-size: 11px;
  text-align: center;
}

.stage-diagram span:nth-of-type(2) { background: var(--teal); color: #071a1a; }
.stage-diagram i { width: 48px; border-top: 1px solid color-mix(in srgb, var(--teal) 60%, transparent); }
.model-stage ul { margin: 0; padding: 0; list-style: none; }
.model-stage li { display: flex; gap: 12px; padding: 13px 0; border-bottom: 1px solid color-mix(in srgb, var(--canvas) 16%, transparent); color: color-mix(in srgb, var(--canvas) 78%, transparent); font-size: 13px; }
.model-stage li span { color: var(--teal); }

.feature-index {
  max-width: var(--max);
  margin: 0 auto;
  padding: 132px 52px;
}

.feature-index__head {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  align-items: start;
  margin-bottom: 70px;
}

.feature-index__head h2 {
  margin: 0;
  font-size: clamp(44px, 5vw, 72px);
  font-weight: 650;
  letter-spacing: -.06em;
  line-height: 1.03;
}

.feature-index__grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line-strong); }

.feature-link {
  display: grid;
  min-height: 150px;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 22px;
  padding: 26px 28px 26px 8px;
  border-bottom: 1px solid var(--line-strong);
  transition: background-color .2s ease, padding .2s ease;
}

.feature-link:nth-child(odd) { border-right: 1px solid var(--line-strong); }
.feature-link:hover { padding-left: 20px; background: var(--surface); }
.feature-link > span { color: var(--ink-faint); font-family: var(--font-geist-mono), monospace; font-size: 11px; }
.feature-link h3 { margin: 0; font-size: 24px; font-weight: 620; letter-spacing: -.035em; }
.feature-link p { margin: 8px 0 0; color: var(--ink-soft); font-size: 14px; }
.feature-link b { color: var(--teal-deep); font-size: 18px; }

.global-section {
  display: grid;
  max-width: var(--max);
  min-height: 680px;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 70px;
  margin: 0 auto;
  padding: 90px 8vw;
  border-top: 1px solid var(--line);
  overflow: hidden;
  background: var(--canvas-soft);
}

.global-copy h2 { margin: 0; font-size: clamp(46px, 5vw, 72px); font-weight: 650; letter-spacing: -.06em; line-height: 1.02; }
.global-copy > p:not(.eyebrow) { max-width: 560px; margin: 26px 0; color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.text-link { display: inline-flex; align-items: center; gap: 18px; padding-bottom: 5px; border-bottom: 1px solid var(--teal); color: var(--teal-deep); font-size: 14px; font-weight: 650; }

.language-orbit {
  position: relative;
  width: min(42vw, 510px);
  aspect-ratio: 1;
  margin: 0 auto;
  border: 1px solid color-mix(in srgb, var(--teal) 35%, transparent);
  border-radius: 50%;
  animation: orbit 40s linear infinite;
}

.language-orbit::before,
.language-orbit::after { position: absolute; inset: 14%; content: ""; border: 1px solid color-mix(in srgb, var(--teal) 28%, transparent); border-radius: 50%; }
.language-orbit::after { inset: 29%; }
.orbit-centre { position: absolute; inset: 33%; z-index: 2; display: grid; place-content: center; border-radius: 50%; background: var(--ink); color: var(--canvas); text-align: center; box-shadow: var(--shadow-lg); }
.orbit-centre strong { font-size: 68px; letter-spacing: -.08em; line-height: .85; }
.orbit-centre small { margin-top: 8px; color: var(--teal); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.language-orbit > i { --angle: calc(var(--i) * 45deg); position: absolute; top: calc(50% + sin(var(--angle)) * 48%); left: calc(50% + cos(var(--angle)) * 48%); display: grid; width: 48px; height: 48px; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--surface); color: var(--teal-deep); font-size: 10px; font-style: normal; font-weight: 700; transform: translate(-50%, -50%); }

.faq-section {
  display: grid;
  max-width: var(--max);
  grid-template-columns: .75fr 1.25fr;
  gap: 100px;
  margin: 0 auto;
  padding: 130px 52px;
}

.faq-section h2 { margin: 0; font-size: clamp(42px, 4.6vw, 66px); font-weight: 650; letter-spacing: -.06em; line-height: 1.04; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; padding: 26px 0; cursor: pointer; font-size: 18px; font-weight: 570; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--teal-deep); font-size: 24px; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 680px; margin: -8px 0 26px; color: var(--ink-soft); line-height: 1.7; }

.final-cta {
  display: grid;
  max-width: var(--max);
  min-height: 440px;
  grid-template-columns: 1.25fr .75fr;
  align-items: center;
  gap: 60px;
  margin: 0 auto;
  padding: 80px 7vw;
  background: var(--teal-pale);
  border-top: 1px solid color-mix(in srgb, var(--teal) 28%, transparent);
}

.final-cta h2 { margin: 0; font-size: clamp(48px, 6vw, 86px); font-weight: 650; letter-spacing: -.07em; line-height: .98; }
.final-cta p:not(.eyebrow) { max-width: 650px; color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.final-cta__actions { display: flex; align-items: flex-start; flex-direction: column; gap: 26px; }

.inner-hero {
  position: relative;
  display: grid;
  max-width: var(--max);
  min-height: 720px;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 80px;
  margin: 0 auto;
  padding: 80px 52px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 180px 180px;
}

.inner-hero::before { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, var(--canvas) 0 42%, transparent 82%); }
.inner-hero__copy { position: relative; z-index: 2; max-width: 720px; }
.breadcrumbs { display: flex; gap: 9px; margin-bottom: 56px; color: var(--ink-faint); font-size: 12px; }
.breadcrumbs a:hover { color: var(--teal-deep); }
.inner-hero h1 { max-width: 820px; margin: 0; font-size: clamp(56px, 6vw, 88px); font-weight: 660; letter-spacing: -.07em; line-height: .98; }
.inner-hero__copy > p:not(.eyebrow) { max-width: 650px; margin: 28px 0 0; color: var(--ink-soft); font-size: 19px; line-height: 1.6; }

.inner-signal {
  position: relative;
  z-index: 2;
  width: min(42vw, 560px);
  aspect-ratio: 1;
  margin: 0 auto;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.signal-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 72px 72px; }
.signal-grid i { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 7px var(--teal-wash); }
.signal-grid i:nth-child(1) { top: 14%; left: 20%; }.signal-grid i:nth-child(2) { top: 26%; right: 18%; }.signal-grid i:nth-child(3) { bottom: 19%; left: 15%; }.signal-grid i:nth-child(4) { right: 14%; bottom: 13%; }
.signal-core { position: absolute; top: 50%; left: 50%; display: grid; width: 142px; height: 142px; place-items: center; border: 1px solid var(--teal); border-radius: 50%; background: var(--ink); color: var(--canvas); box-shadow: 0 0 0 34px var(--teal-wash); transform: translate(-50%, -50%); }
.signal-core .waveform { color: var(--teal); }.signal-core b { font-size: 11px; letter-spacing: .12em; }
.signal-fact { position: absolute; z-index: 3; display: flex; align-items: center; gap: 8px; padding: 10px 13px; border: 1px solid var(--line-strong); border-radius: 99px; background: var(--surface); box-shadow: var(--shadow-sm); font-size: 11px; font-weight: 640; }
.signal-fact > i { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }
.signal-fact--1 { top: 15%; left: 8%; }.signal-fact--2 { top: 24%; right: 7%; }.signal-fact--3 { right: 12%; bottom: 14%; }
.connector { position: absolute; z-index: 1; width: 40%; height: 22%; border: 1px solid var(--teal); opacity: .55; }
.connector--a { top: 25%; left: 18%; border-right: 0; border-bottom: 0; border-radius: 28px 0 0; }.connector--b { top: 32%; right: 17%; border-left: 0; border-bottom: 0; border-radius: 0 28px 0 0; }.connector--c { right: 20%; bottom: 25%; border-top: 0; border-left: 0; border-radius: 0 0 28px; }

.translation-note { display: flex; max-width: var(--max); align-items: center; gap: 18px; margin: 0 auto; padding: 20px 52px; border-bottom: 1px solid var(--line); background: var(--teal-pale); }
.translation-note span { display: grid; width: 26px; height: 26px; place-items: center; border: 1px solid var(--teal); border-radius: 50%; color: var(--teal-deep); font-family: serif; font-style: italic; }
.translation-note p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.page-details {
  display: grid;
  max-width: var(--max);
  grid-template-columns: .72fr 1.28fr;
  gap: 100px;
  margin: 0 auto;
  padding: 132px 52px;
}

.page-details__heading { position: sticky; top: 40px; align-self: start; }
.page-details__heading h2 { margin: 0; font-size: clamp(40px, 4.3vw, 62px); font-weight: 650; letter-spacing: -.055em; line-height: 1.04; }
.page-details__heading > p:last-child { color: var(--ink-faint); font-size: 12px; }
.detail-stack { border-top: 1px solid var(--line-strong); }
.detail-stack article { display: grid; min-height: 220px; grid-template-columns: 60px 1fr; gap: 30px; padding: 38px 0; border-bottom: 1px solid var(--line-strong); }
.detail-stack article > span { color: var(--ink-faint); font-family: var(--font-geist-mono), monospace; font-size: 11px; }
.detail-stack h3 { margin: 0; font-size: 30px; font-weight: 620; letter-spacing: -.04em; }
.detail-stack article p { margin: 16px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.75; }
.page-details--legal .detail-stack article { min-height: 180px; }
.legal-contact-card { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; margin-top: 34px; padding: 30px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); }
.legal-contact-card div { display: flex; flex-direction: column; gap: 10px; }.legal-contact-card small { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }.legal-contact-card strong, .legal-contact-card a { font-size: 13px; line-height: 1.65; }.legal-contact-card a { color: var(--teal-deep); }
.source-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }.source-links a { padding: 12px 16px; border: 1px solid var(--line-strong); border-radius: 99px; color: var(--teal-deep); font-size: 12px; }

.contact-band { display: grid; max-width: var(--max); grid-template-columns: repeat(3, 1fr); margin: 0 auto; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.contact-band div { min-height: 170px; display: flex; flex-direction: column; justify-content: center; gap: 16px; padding: 30px 52px; }.contact-band div + div { border-left: 1px solid var(--line-strong); }.contact-band span { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }.contact-band a { color: var(--teal-deep); font-size: clamp(18px, 2vw, 27px); font-weight: 620; letter-spacing: -.035em; }.contact-band strong { font-size: 16px; line-height: 1.5; }

.related-pages { max-width: var(--max); margin: 0 auto; padding: 120px 52px; }
.related-pages__head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 50px; }.related-pages__head h2 { margin: 0; font-size: clamp(40px, 4vw, 62px); font-weight: 650; letter-spacing: -.055em; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.related-grid a { position: relative; min-height: 230px; padding: 32px; transition: background-color .2s ease, transform .2s ease; }.related-grid a + a { border-left: 1px solid var(--line-strong); }.related-grid a:hover { z-index: 2; background: var(--surface); transform: translateY(-4px); box-shadow: var(--shadow-sm); }.related-grid span { color: var(--teal-deep); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }.related-grid h3 { max-width: 330px; margin: 45px 0 0; font-size: 25px; font-weight: 620; letter-spacing: -.04em; line-height: 1.12; }.related-grid b { position: absolute; right: 28px; bottom: 28px; color: var(--teal-deep); }

.cookie-banner {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 300;
  display: grid;
  width: min(520px, calc(100vw - 44px));
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

:root[data-cookie-choice="ack"] .cookie-banner { display: none; }
.cookie-banner > span { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; background: var(--teal-pale); color: var(--teal-deep); }
.cookie-banner p { margin: 0; color: var(--ink-soft); font-size: 11px; line-height: 1.5; }.cookie-banner p a { color: var(--teal-deep); text-decoration: underline; }.cookie-banner button { padding: 9px 13px; border: 0; border-radius: 7px; background: var(--ink); color: var(--canvas); font-size: 11px; cursor: pointer; }

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 76px 52px 28px;
  background: var(--ink);
  color: var(--canvas);
}

.footer-brand {
  float: left;
  width: 28%;
}

.site-footer .brand-name b { color: var(--teal); }

.footer-brand p {
  max-width: 360px;
  margin: 26px 0 0;
  color: color-mix(in srgb, var(--canvas) 66%, transparent);
  line-height: 1.65;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-left: 32%;
}

.footer-links h3 {
  margin: 0 0 22px;
  color: color-mix(in srgb, var(--canvas) 48%, transparent);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.footer-links a {
  display: block;
  margin: 12px 0;
  color: color-mix(in srgb, var(--canvas) 88%, transparent);
  font-size: 14px;
}

.footer-links a:hover { color: var(--teal); }

.footer-bottom {
  display: flex;
  clear: both;
  justify-content: space-between;
  margin-top: 72px;
  padding-top: 24px;
  border-top: 1px solid color-mix(in srgb, var(--canvas) 18%, transparent);
  color: color-mix(in srgb, var(--canvas) 52%, transparent);
  font-size: 11px;
}

.reveal {
  animation: reveal-up 720ms cubic-bezier(.22,1,.36,1) both;
}

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes dashboard-enter {
  from { opacity: 0; transform: translateY(28px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes wave {
  from { transform: scaleY(.7); opacity: .65; }
  to { transform: scaleY(1.12); opacity: 1; }
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

@keyframes node-pulse {
  50% { box-shadow: 0 0 0 14px transparent; }
}

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav {
    position: absolute;
    top: 82px;
    right: 30px;
    left: 30px;
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
  }
  .desktop-nav.is-open { display: flex; }
  .menu-button { display: flex; }
  .sign-in { display: none; }
  .hero {
    grid-template-columns: .85fr 1.15fr;
    gap: 20px;
  }
  .dashboard { min-width: 580px; transform: scale(.9); transform-origin: left center; }
  .dashboard-wrap { width: 530px; }
}

@media (max-width: 960px) {
  .site-header { padding: 0 28px; }
  .brand-name { display: none; }
  .language-select span,
  .button--small span { display: none; }
  .section-grid { padding-right: 28px; padding-left: 28px; }
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 70px;
    padding-bottom: 96px;
  }
  .hero-copy { max-width: 700px; padding: 30px 0; }
  .dashboard-wrap { width: 100%; margin-top: 38px; transform: none; }
  .dashboard { width: 100%; min-width: 0; transform: none; }
  .route-orbit--one, .route-orbit--two { left: 20%; }
  .section-intro { grid-template-columns: 1fr; gap: 26px; }
  .capabilities { padding-right: 28px; padding-left: 28px; }
  .footer-brand { float: none; width: 100%; }
  .footer-links { margin: 58px 0 0; }
  .model-stage { grid-template-columns: 1fr; gap: 34px; }
  .stage-diagram { justify-content: flex-start; }
  .feature-index__head { grid-template-columns: 1fr; gap: 22px; }
  .global-section { grid-template-columns: 1fr; }
  .language-orbit { width: min(70vw, 480px); }
  .faq-section { grid-template-columns: 1fr; gap: 60px; }
  .inner-hero { grid-template-columns: 1fr; padding-top: 90px; }
  .inner-signal { width: min(76vw, 560px); }
  .page-details { grid-template-columns: 1fr; gap: 54px; }
  .page-details__heading { position: static; }
  .contact-band { grid-template-columns: 1fr; }
  .contact-band div + div { border-top: 1px solid var(--line-strong); border-left: 0; }
  .legal-contact-card { grid-template-columns: 1fr 1fr; }
  .final-cta { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .site-shell { background: var(--canvas); }
  .site-header {
    min-height: 74px;
    padding: 0 18px;
  }
  .header-actions { gap: 8px; }
  .button--small { display: none; }
  .language-select { border: 1px solid var(--line); border-radius: 99px; padding: 5px 3px 5px 8px; }
  .theme-toggle__track { width: 42px; }
  .desktop-nav {
    top: 64px;
    right: 14px;
    left: 14px;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }
  .desktop-nav a { padding: 14px 10px; border-bottom: 1px solid var(--line); }
  .section-grid { padding-right: 18px; padding-left: 18px; }
  .hero {
    padding-top: 48px;
    padding-bottom: 70px;
    background-size: 120px 100%;
    background-position: 18px 0;
  }
  .hero h1 { font-size: clamp(46px, 14vw, 66px); }
  .hero-description { font-size: 17px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; justify-content: space-between; }
  .trust-line { gap: 10px 16px; }
  .trust-line span:not(:last-child)::after { display: none; }
  .dashboard {
    min-height: 440px;
    grid-template-columns: 55px 1fr;
    border-radius: 13px;
  }
  .dashboard-rail { padding: 14px 6px; }
  .rail-logo, .rail-icon { width: 37px; height: 37px; }
  .dashboard-main { padding: 14px 10px 12px; }
  .active-call { grid-template-columns: auto 1fr auto; gap: 8px; padding: 12px; }
  .active-call > .waveform { display: none; }
  .call-time { grid-column: 3; }
  .call-actions { grid-column: 1 / -1; }
  .dashboard-grid { grid-template-columns: 1fr 1fr; }
  .activity-card { display: none; }
  .metrics-row { grid-template-columns: 1fr 1fr; }
  .metrics-row > div:nth-child(n+3) { display: none; }
  .capabilities { padding: 90px 18px; }
  .section-intro { margin-bottom: 44px; }
  .section-intro h2 { font-size: 48px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 0; padding: 34px 24px; }
  .capability-card + .capability-card { border-top: 1px solid var(--line-strong); border-left: 0; }
  .capability-icon { margin-top: 28px; }
  .protocol-strip { padding: 42px 18px; }
  .protocol-strip div { justify-content: flex-start; }
  .operating-models { padding: 84px 18px; }
  .model-heading { display: block; }
  .model-tabs { grid-template-columns: 1fr; }
  .model-tabs button + button { border-top: 1px solid color-mix(in srgb, var(--canvas) 22%, transparent); border-left: 0; }
  .model-stage { padding: 42px 0 0; }
  .stage-diagram { transform: scale(.82); transform-origin: left center; }
  .feature-index { padding: 90px 18px; }
  .feature-index__grid { grid-template-columns: 1fr; }
  .feature-link:nth-child(odd) { border-right: 0; }
  .global-section { min-height: auto; padding: 84px 18px; }
  .language-orbit { width: min(82vw, 390px); margin-top: 40px; }
  .language-orbit > i { width: 40px; height: 40px; }
  .orbit-centre strong { font-size: 54px; }
  .faq-section { padding: 90px 18px; }
  .faq-list summary { gap: 20px; font-size: 16px; }
  .final-cta { min-height: auto; padding: 80px 18px; }
  .final-cta__actions { width: 100%; }
  .final-cta__actions .button { width: 100%; justify-content: space-between; }
  .inner-hero { min-height: auto; gap: 60px; padding: 62px 18px 80px; background-size: 110px 110px; }
  .breadcrumbs { margin-bottom: 42px; }
  .inner-hero h1 { font-size: clamp(47px, 13.5vw, 68px); }
  .inner-hero__copy > p:not(.eyebrow) { font-size: 17px; }
  .inner-signal { width: 100%; border-radius: 15px; }
  .signal-core { width: 112px; height: 112px; }
  .signal-fact { max-width: 125px; font-size: 9px; }
  .translation-note { align-items: flex-start; padding: 18px; }
  .page-details { padding: 88px 18px; }
  .detail-stack article { grid-template-columns: 38px 1fr; gap: 14px; }
  .detail-stack h3 { font-size: 25px; }
  .legal-contact-card { grid-template-columns: 1fr; padding: 22px; }
  .contact-band div { min-height: 130px; padding: 28px 18px; }
  .related-pages { padding: 88px 18px; }
  .related-pages__head { display: block; }
  .related-grid { grid-template-columns: 1fr; }
  .related-grid a + a { border-top: 1px solid var(--line-strong); border-left: 0; }
  .cookie-banner { right: 10px; bottom: 10px; width: calc(100vw - 20px); grid-template-columns: auto 1fr; }
  .cookie-banner button { grid-column: 1 / -1; width: 100%; }
  .site-footer { padding: 64px 18px 24px; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}