:root {
  --blue: #0f5bff;
  --blue-dark: #073aa8;
  --cyan: #11c8e8;
  --navy: #071936;
  --ink: #10223f;
  --muted: #64738b;
  --line: #dfe7f3;
  --surface: #f5f8fc;
  --white: #fff;
  --shell: 1200px;
  --radius: 28px;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--white);
}

body,
button,
a {
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  transform: translateY(-160%);
  padding: 10px 16px;
  border-radius: 10px;
  color: white;
  background: var(--navy);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(217, 228, 242, 0.72);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 76px;
  gap: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  display: block;
  width: 204px;
  max-height: 52px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 32px;
}

.site-nav a {
  position: relative;
  color: #41516a;
  font-size: 14px;
  font-weight: 600;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: -11px;
  left: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--blue);
  transition: inset 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  right: 0;
  left: 0;
}

.header-actions,
.hero-actions,
.start-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 19px;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 14px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

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

.button:focus-visible,
.menu-button:focus-visible,
.composer button:focus-visible {
  outline: 3px solid rgba(15, 91, 255, 0.25);
  outline-offset: 3px;
}

.button-primary {
  color: white;
  background: var(--blue);
  box-shadow: 0 12px 28px rgba(15, 91, 255, 0.22);
}

.button-primary:hover {
  background: #0a4fe4;
  box-shadow: 0 16px 34px rgba(15, 91, 255, 0.3);
}

.button-ghost {
  color: #34445d;
  border-color: #d8e2ef;
  background: rgba(255, 255, 255, 0.7);
}

.button-soft {
  color: #28415f;
  border-color: #d9e5f4;
  background: rgba(255, 255, 255, 0.8);
}

.button-large {
  min-height: 52px;
  padding: 0 25px;
  border-radius: 14px;
  font-size: 15px;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 10px;
  border: 0;
  border-radius: 10px;
  background: #eef4fc;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 4px 0;
  border-radius: 2px;
  background: var(--navy);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 0;
  background:
    radial-gradient(circle at 80% 10%, rgba(17, 200, 232, 0.11), transparent 30%),
    linear-gradient(180deg, #f9fbff 0%, #f3f7fc 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(53, 89, 132, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 89, 132, 0.09) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

.hero-glow-a {
  top: 20px;
  right: -180px;
  width: 500px;
  height: 500px;
  background: rgba(15, 91, 255, 0.08);
}

.hero-glow-b {
  bottom: 80px;
  left: -160px;
  width: 340px;
  height: 340px;
  background: rgba(17, 200, 232, 0.09);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.86fr 1.34fr;
  align-items: center;
  gap: 48px;
}

.eyebrow,
.section-kicker,
.feature-tag {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  margin-bottom: 26px;
  padding: 9px 13px;
  gap: 9px;
  border: 1px solid rgba(15, 91, 255, 0.15);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  letter-spacing: 0;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(17, 200, 232, 0.13);
}

.hero h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(45px, 5vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.065em;
}

.hero h1 span {
  color: transparent;
  background: linear-gradient(100deg, var(--blue), #0b8fcf);
  background-clip: text;
}

.hero-lead {
  max-width: 600px;
  margin: 27px 0 31px;
  color: #53637a;
  font-size: 18px;
  line-height: 1.8;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  margin-top: 28px;
  gap: 17px;
  color: #61718a;
  font-size: 13px;
  font-weight: 600;
}

.hero-trust i {
  display: inline-grid;
  width: 18px;
  height: 18px;
  margin-right: 5px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: #e3edff;
  font-style: normal;
}

.product-stage {
  position: relative;
  min-width: 0;
  padding: 25px 0;
  perspective: 1400px;
}

.stage-orbit {
  position: absolute;
  border: 1px solid rgba(15, 91, 255, 0.14);
  border-radius: 50%;
}

.orbit-one {
  top: -50px;
  right: -50px;
  width: 270px;
  height: 270px;
}

.orbit-two {
  right: 70px;
  bottom: -10px;
  width: 110px;
  height: 110px;
  border-color: rgba(17, 200, 232, 0.25);
}

.app-window {
  position: relative;
  overflow: hidden;
  width: 760px;
  max-width: 100%;
  border: 1px solid rgba(174, 194, 219, 0.7);
  border-radius: 20px;
  background: white;
  box-shadow:
    0 40px 100px rgba(29, 63, 111, 0.18),
    0 8px 24px rgba(29, 63, 111, 0.08);
  transform: rotateY(-4deg) rotateX(1deg);
}

.window-bar {
  display: flex;
  align-items: center;
  height: 52px;
  padding: 0 16px;
  border-bottom: 1px solid #e7edf5;
  background: #fbfcfe;
}

.window-dots {
  display: flex;
  gap: 5px;
}

.window-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cfdae8;
}

.window-dots i:first-child {
  background: #ff786f;
}

.window-dots i:nth-child(2) {
  background: #ffc95b;
}

.window-dots i:nth-child(3) {
  background: #54d38a;
}

.window-title {
  margin-left: 24px;
  color: #43546d;
  font-size: 12px;
  font-weight: 700;
}

.online-chip {
  display: flex;
  align-items: center;
  margin-left: auto;
  gap: 6px;
  color: #4e6078;
  font-size: 10px;
}

.online-chip span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #21c77a;
}

.window-body {
  display: grid;
  grid-template-columns: 54px 165px minmax(240px, 1fr) 150px;
  min-height: 400px;
}

.demo-sidebar {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding: 14px 7px;
  gap: 10px;
  color: white;
  background: var(--navy);
}

.mini-logo {
  display: grid;
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
  place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-weight: 900;
}

.demo-nav {
  display: grid;
  width: 35px;
  height: 35px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 9px;
  color: #91a4c0;
  background: transparent;
}

.demo-nav.active {
  color: white;
  background: rgba(255, 255, 255, 0.12);
}

.conversation-list,
.context-panel {
  padding: 17px 12px;
  border-right: 1px solid #edf1f7;
  background: #fbfcfe;
}

.list-heading,
.chat-heading {
  display: flex;
  align-items: center;
}

.list-heading {
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 11px;
}

.list-heading span {
  display: grid;
  width: 21px;
  height: 21px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: #e9f0ff;
  font-size: 9px;
}

.conversation {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  margin-bottom: 7px;
  padding: 10px 7px;
  gap: 8px;
  border-radius: 10px;
  color: #2f4059;
}

.conversation.active {
  background: #edf3ff;
}

.conversation b,
.conversation small {
  display: block;
}

.conversation b {
  margin-bottom: 4px;
  font-size: 10px;
}

.conversation small {
  overflow: hidden;
  max-width: 80px;
  color: #8592a4;
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation time {
  align-self: start;
  color: #9ba7b7;
  font-size: 7px;
}

.avatar {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  color: white;
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}

.avatar-blue {
  background: #578cff;
}

.avatar-orange {
  background: #f8a84e;
}

.avatar-green {
  background: #45bba0;
}

.avatar-purple {
  background: #8d72de;
}

.chat-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  background: white;
}

.chat-heading {
  min-height: 58px;
  padding: 0 15px;
  border-bottom: 1px solid #edf1f7;
}

.chat-heading strong,
.chat-heading small {
  display: block;
}

.chat-heading strong {
  color: #21334e;
  font-size: 11px;
}

.chat-heading small {
  margin-top: 3px;
  color: #8c99aa;
  font-size: 8px;
}

.ai-status {
  margin-left: auto;
  padding: 5px 7px;
  border-radius: 6px;
  color: #0969d8;
  background: #e8f4ff;
  font-size: 8px;
  font-weight: 700;
}

.messages {
  flex: 1;
  padding: 20px 17px;
  background:
    radial-gradient(circle at 90% 10%, rgba(17, 200, 232, 0.05), transparent 35%),
    #fff;
}

.message {
  max-width: 85%;
  margin-bottom: 13px;
  padding: 10px 12px;
  border-radius: 11px;
  font-size: 9px;
  line-height: 1.55;
}

.message.customer {
  margin-left: auto;
  color: #1d4c8e;
  background: #eaf2ff;
  border-bottom-right-radius: 3px;
}

.message.agent {
  color: #31435d;
  border: 1px solid #e5edf6;
  background: white;
  border-bottom-left-radius: 3px;
  box-shadow: 0 5px 14px rgba(44, 72, 108, 0.05);
}

.message em {
  display: block;
  margin-top: 7px;
  color: #258965;
  font-size: 7px;
  font-style: normal;
}

.ai-thinking {
  display: flex;
  align-items: center;
  margin: 0 0 12px 4px;
  gap: 4px;
  color: #8290a4;
  font-size: 7px;
}

.ai-thinking i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--cyan);
}

.composer {
  display: flex;
  align-items: center;
  min-height: 54px;
  margin: 0 12px 12px;
  padding: 0 8px 0 12px;
  border: 1px solid #dfe7f1;
  border-radius: 11px;
}

.composer span {
  color: #9aa5b3;
  font-size: 8px;
}

.composer button {
  margin-left: auto;
  padding: 7px 11px;
  border: 0;
  border-radius: 7px;
  color: white;
  background: var(--blue);
  font-size: 8px;
  font-weight: 700;
}

.context-panel {
  border-right: 0;
  border-left: 1px solid #edf1f7;
}

.context-title {
  margin-bottom: 13px;
  color: #263851;
  font-size: 10px;
  font-weight: 800;
}

.context-card {
  margin-bottom: 9px;
  padding: 10px;
  border: 1px solid #e5ecf5;
  border-radius: 10px;
  background: white;
}

.context-card small,
.context-card strong,
.context-card span {
  display: block;
}

.context-card small {
  margin-bottom: 7px;
  color: #8794a6;
  font-size: 7px;
}

.context-card strong {
  margin-bottom: 4px;
  color: #31435d;
  font-size: 9px;
}

.context-card span {
  color: #8592a3;
  font-size: 7px;
  line-height: 1.5;
}

.context-card.highlight {
  border-color: #bfe9ef;
  background: #f0fcfd;
}

.proof-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 90px;
  border-top: 1px solid #dce5f0;
  background: rgba(255, 255, 255, 0.32);
}

.proof-strip > div {
  padding: 30px 30px 31px;
  border-right: 1px solid #dce5f0;
}

.proof-strip > div:last-child {
  border-right: 0;
}

.proof-strip strong,
.proof-strip span {
  display: block;
}

.proof-strip strong {
  margin-bottom: 7px;
  color: var(--navy);
  font-size: 24px;
}

.proof-strip span {
  color: #718096;
  font-size: 12px;
}

.section {
  padding: 120px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 50px;
  gap: 50px;
}

.section-heading h2,
.workflow-copy h2,
.security-copy h2,
.start-card h2 {
  margin: 13px 0 0;
  color: var(--navy);
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.section-heading p {
  max-width: 480px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.feature {
  position: relative;
  min-height: 330px;
  padding: 35px;
  overflow: hidden;
  border: 1px solid #e1e8f2;
  border-radius: var(--radius);
  background: #fbfcfe;
}

.feature::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(15, 91, 255, 0.04);
}

.feature-main {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 410px;
  align-items: center;
  gap: 60px;
  background: linear-gradient(135deg, #f7faff, #f0f7ff);
}

.feature-index {
  position: absolute;
  top: 27px;
  right: 30px;
  color: #d5dfec;
  font-size: 14px;
  font-weight: 800;
}

.feature h3 {
  max-width: 480px;
  margin: 15px 0 14px;
  color: var(--navy);
  font-size: 27px;
  line-height: 1.35;
}

.feature p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.feature-symbol {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 40px;
  place-items: center;
  border: 1px solid #d8e7ff;
  border-radius: 18px;
  color: var(--blue);
  background: white;
  box-shadow: 0 12px 25px rgba(41, 91, 159, 0.08);
  font-size: 23px;
  font-weight: 800;
}

.answer-card {
  position: relative;
  padding: 27px;
  border: 1px solid #dce7f4;
  border-radius: 22px;
  background: white;
  box-shadow: 0 30px 60px rgba(35, 76, 129, 0.12);
}

.answer-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.answer-avatar {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 13px;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-size: 12px;
  font-weight: 900;
}

.answer-top b,
.answer-top small {
  display: block;
}

.answer-top b {
  color: #243650;
  font-size: 13px;
}

.answer-top small {
  margin-top: 4px;
  color: #8b98a9;
  font-size: 10px;
}

.answer-top i {
  margin-left: auto;
  padding: 6px 8px;
  border-radius: 8px;
  color: #168b64;
  background: #e9faf3;
  font-size: 10px;
  font-style: normal;
  font-weight: 800;
}

.answer-card p {
  margin: 22px 0;
  color: #3a4c65;
  font-size: 14px;
  line-height: 1.8;
}

.source-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.source-pills span {
  padding: 6px 9px;
  border-radius: 7px;
  color: #58708e;
  background: #f1f5fa;
  font-size: 10px;
  font-weight: 600;
}

.workflow {
  color: white;
  background: var(--navy);
}

.workflow-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 100px;
}

.workflow-copy {
  position: sticky;
  top: 120px;
  align-self: start;
}

.workflow-copy h2 {
  color: white;
}

.workflow-copy p {
  margin: 23px 0 28px;
  color: #a9b8cc;
  font-size: 16px;
  line-height: 1.8;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #78dded;
  font-size: 14px;
  font-weight: 800;
}

.workflow-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-steps li {
  display: grid;
  grid-template-columns: 70px 1fr;
  padding: 33px 0;
  gap: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.workflow-steps li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.workflow-steps > li > span {
  color: #4b698f;
  font-size: 13px;
  font-weight: 900;
}

.workflow-steps h3 {
  margin: -4px 0 11px;
  font-size: 24px;
}

.workflow-steps p {
  margin: 0;
  color: #a9b8cc;
  line-height: 1.75;
}

.section-heading.centered {
  display: block;
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading.centered p {
  max-width: 650px;
  margin: 18px auto 0;
}

.platforms {
  background: #f7f9fc;
}

.platform-cloud {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.platform-cloud > div {
  min-width: 0;
  padding: 25px 17px;
  border: 1px solid #e1e8f1;
  border-radius: 18px;
  background: white;
  text-align: center;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.platform-cloud > div:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 38px rgba(47, 77, 117, 0.1);
}

.platform-cloud b,
.platform-cloud span {
  display: block;
}

.platform-cloud b {
  margin: 14px 0 6px;
  color: #263850;
  font-size: 13px;
}

.platform-cloud span {
  overflow: hidden;
  color: #8b97a8;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.platform-color {
  display: inline-block;
  width: 34px;
  height: 34px;
  border: 8px solid rgba(255, 255, 255, 0.82);
  border-radius: 12px;
  box-shadow: 0 0 0 1px #e7edf4;
}

.color-orange {
  background: #ff7a21;
}

.color-black {
  background: #1d222b;
}

.color-red {
  background: #e53935;
}

.color-coral {
  background: #ff5d55;
}

.color-green {
  background: #20b56b;
}

.color-emerald {
  background: #06a77d;
}

.color-rose {
  background: #ef496f;
}

.platform-note {
  margin: 22px 0 0;
  color: #8b98a9;
  font-size: 12px;
  text-align: center;
}

.security {
  background: white;
}

.security-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  padding: 70px;
  gap: 80px;
  border-radius: 32px;
  color: white;
  background:
    radial-gradient(circle at 80% 0, rgba(17, 200, 232, 0.2), transparent 30%),
    linear-gradient(135deg, #07204b, #07162f);
  box-shadow: 0 35px 80px rgba(11, 35, 75, 0.18);
}

.section-kicker.light {
  color: #65d8ec;
}

.security-copy h2 {
  color: white;
}

.security-copy p {
  margin: 22px 0 0;
  color: #aebbd0;
  line-height: 1.8;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 13px;
}

.security-grid > div {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
}

.security-grid span,
.security-grid b,
.security-grid small {
  display: block;
}

.security-grid span {
  margin-bottom: 23px;
  color: #47709f;
  font-size: 11px;
  font-weight: 800;
}

.security-grid b {
  margin-bottom: 7px;
  font-size: 15px;
}

.security-grid small {
  color: #9eacc1;
  line-height: 1.5;
}

.start {
  padding-top: 0;
}

.start-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 65px 70px;
  overflow: hidden;
  border-radius: 32px;
  color: white;
  background:
    radial-gradient(circle at 85% 10%, rgba(17, 200, 232, 0.45), transparent 30%),
    linear-gradient(120deg, #0d55ec, #073eb8);
}

.start-card .section-kicker {
  color: #a9eaf4;
}

.start-card h2 {
  color: white;
}

.button-light {
  color: #0a48c5;
  background: white;
}

.button-outline-light {
  color: white;
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.06);
}

.site-footer {
  padding: 55px 0 25px;
  border-top: 1px solid #e4eaf2;
  background: #f8fafc;
}

.footer-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 25px;
}

.footer-brand img {
  width: 185px;
}

.footer-top p {
  color: #7b889b;
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 22px;
  color: #5e6c80;
  font-size: 12px;
  font-weight: 600;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 35px;
  padding-top: 22px;
  border-top: 1px solid #e2e8f0;
  color: #97a2b1;
  font-size: 11px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

@media (max-width: 1100px) {
  .site-nav {
    gap: 20px;
  }

  .brand img {
    width: 178px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
  }

  .product-stage {
    width: 100%;
  }

  .app-window {
    width: 100%;
    transform: none;
  }

  .platform-cloud {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 880px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    right: 24px;
    left: 24px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    padding: 18px;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: white;
    box-shadow: 0 22px 48px rgba(25, 51, 87, 0.16);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 8px;
  }

  .site-nav a::after {
    display: none;
  }

  .header-actions .button-ghost {
    display: none;
  }

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

  .proof-strip > div:nth-child(2) {
    border-right: 0;
  }

  .proof-strip > div:nth-child(-n + 2) {
    border-bottom: 1px solid #dce5f0;
  }

  .feature-main {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .workflow-layout,
  .security-card {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .workflow-copy {
    position: static;
  }

  .start-card {
    align-items: flex-start;
    flex-direction: column;
    gap: 35px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(calc(100% - 30px), var(--shell));
  }

  .header-inner {
    min-height: 68px;
    gap: 10px;
  }

  .brand img {
    width: 154px;
  }

  .header-actions .button-primary {
    display: none;
  }

  .site-nav {
    top: 68px;
    right: 15px;
    left: 15px;
  }

  .hero {
    padding-top: 68px;
  }

  .hero h1 {
    font-size: 43px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions,
  .start-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-trust {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .window-body {
    grid-template-columns: 48px 1fr;
  }

  .conversation-list,
  .context-panel {
    display: none;
  }

  .app-window {
    border-radius: 15px;
  }

  .proof-strip {
    margin-top: 55px;
  }

  .proof-strip > div {
    padding: 22px 14px;
  }

  .proof-strip strong {
    font-size: 19px;
  }

  .proof-strip span {
    font-size: 10px;
  }

  .section {
    padding: 82px 0;
  }

  .section-heading {
    display: block;
  }

  .section-heading p {
    margin-top: 20px;
  }

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

  .feature-main {
    grid-column: auto;
  }

  .feature {
    min-height: 0;
    padding: 28px;
  }

  .answer-card {
    padding: 20px;
  }

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

  .security-card,
  .start-card {
    width: calc(100% - 22px);
    padding: 38px 27px;
  }

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

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

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

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

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