:root {
  color-scheme: light;
  --surface-canvas: #f6f8fb;
  --surface-raised: #ffffff;
  --surface-subtle: #edf2f7;
  --surface-muted: #e2e9f1;
  --surface-inverse: #07152b;
  --surface-overlay: rgba(255, 255, 255, 0.82);
  --text-primary: #10213a;
  --text-secondary: #4f6178;
  --text-muted: #738198;
  --text-on-accent: #ffffff;
  --text-on-inverse: #f7faff;
  --border-default: #d6dee9;
  --border-control: #bcc8d7;
  --border-subtle: #e6ebf2;
  --accent: #0877e8;
  --accent-hover: #0567ca;
  --accent-solid: #0877e8;
  --accent-solid-hover: #0567ca;
  --accent-selected: #60aefd;
  --accent-subtle: #e7f3ff;
  --accent-cyan: #05b9c8;
  --accent-mint: #08b89b;
  --success: #07866f;
  --success-subtle: #e1f8f1;
  --warning: #a46408;
  --danger: #c63a4b;
  --danger-strong: #a71f34;
  --danger-solid: #bc2d42;
  --danger-border: #edb9c1;
  --danger-subtle: #fff0f2;
  --shadow-card: 0 24px 70px rgba(16, 33, 58, 0.1);
  --shadow-dialog: 0 32px 90px rgba(5, 20, 42, 0.2);
  --shadow-button: 0 10px 24px rgba(8, 119, 232, 0.22);
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --section-space: 96px;
  --font-caption: 0.625rem;
  --font-body: 0.875rem;
  --font-section-title: 1rem;
  --font-page-title: clamp(2.7rem, 6vw, 5.5rem);
  --radius-control: 8px;
  --radius-card: 12px;
  --radius-large: 24px;
  --radius-pill: 999px;
  --motion-fast: 120ms;
  --motion-normal: 180ms;
  --motion-slow: 240ms;
  --z-header: 20;
  --z-menu: 30;
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

[data-theme="dark"] {
  color-scheme: dark;
  --surface-canvas: #07101f;
  --surface-raised: #101c2e;
  --surface-subtle: #142338;
  --surface-muted: #1b2a3f;
  --surface-inverse: #eaf3ff;
  --surface-overlay: rgba(7, 16, 31, 0.84);
  --text-primary: #edf5ff;
  --text-secondary: #b2c0d2;
  --text-muted: #8494a9;
  --text-on-accent: #ffffff;
  --text-on-inverse: #10213a;
  --border-default: #2a3b51;
  --border-control: #40546d;
  --border-subtle: #203148;
  --accent: #62b0ff;
  --accent-hover: #8bc5ff;
  --accent-solid: #147fe9;
  --accent-solid-hover: #3495f5;
  --accent-selected: #65b4ff;
  --accent-subtle: #112d4c;
  --accent-cyan: #37c9d4;
  --accent-mint: #35ccb1;
  --success: #59d4bb;
  --success-subtle: #103a34;
  --warning: #e8ae54;
  --danger: #ff8795;
  --danger-strong: #ffa2ad;
  --danger-solid: #d34257;
  --danger-border: #763d48;
  --danger-subtle: #3b1e27;
  --shadow-card: 0 24px 70px rgba(0, 0, 0, 0.28);
  --shadow-dialog: 0 32px 90px rgba(0, 0, 0, 0.46);
  --shadow-button: 0 10px 26px rgba(20, 127, 233, 0.28);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--surface-canvas);
  color: var(--text-primary);
  font-size: var(--font-body);
  line-height: 1.7;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

svg {
  display: block;
}

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

h1,
h2,
h3 {
  line-height: 1.16;
}

h2 {
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.045em;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

::selection {
  background: var(--accent-selected);
  color: var(--text-primary);
}

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

.skip-link {
  position: fixed;
  z-index: calc(var(--z-menu) + 1);
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-control);
  background: var(--accent-solid);
  color: var(--text-on-accent);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform var(--motion-fast) ease-out;
}

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

.section {
  padding-block: var(--section-space);
}

.section-inner,
.header-inner {
  width: min(100% - 64px, 1200px);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: var(--z-header);
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  transition:
    background-color var(--motion-normal) ease-out,
    border-color var(--motion-normal) ease-out,
    box-shadow var(--motion-normal) ease-out;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  border-bottom-color: var(--border-subtle);
  background: var(--surface-overlay);
  box-shadow: 0 6px 24px color-mix(in srgb, var(--text-primary) 7%, transparent);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: var(--space-2);
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 780;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-icon {
  position: relative;
  display: inline-grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
}

.brand-icon__image {
  width: 100%;
  height: 100%;
  grid-area: 1 / 1;
  object-fit: contain;
}

.brand-icon__image--dark {
  display: none;
}

[data-theme="dark"] .brand-icon__image--light {
  display: none;
}

[data-theme="dark"] .brand-icon__image--dark {
  display: block;
}

.site-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--surface-raised) 82%, transparent);
}

.site-navigation a {
  min-height: 36px;
  padding: 6px var(--space-4);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 650;
  text-decoration: none;
  transition:
    color var(--motion-fast) ease-out,
    background-color var(--motion-fast) ease-out;
}

.site-navigation a:hover,
.site-navigation a[aria-current="true"] {
  background: var(--surface-subtle);
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: var(--space-2);
}

.icon-button {
  display: inline-grid;
  width: 40px;
  height: 40px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-control);
  background: var(--surface-raised);
  color: var(--text-primary);
  cursor: pointer;
  transition:
    border-color var(--motion-fast) ease-out,
    background-color var(--motion-fast) ease-out,
    transform var(--motion-fast) ease-out;
}

.icon-button:hover {
  border-color: var(--border-control);
  background: var(--surface-subtle);
}

.icon-button:active {
  transform: translateY(1px);
}

.icon-button svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.theme-icon--moon {
  display: none;
}

[data-theme="dark"] .theme-icon--sun {
  display: none;
}

[data-theme="dark"] .theme-icon--moon {
  display: block;
}

.menu-toggle {
  display: none;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-weight: 720;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    color var(--motion-fast) ease-out,
    background-color var(--motion-fast) ease-out,
    border-color var(--motion-fast) ease-out,
    box-shadow var(--motion-fast) ease-out,
    transform var(--motion-fast) ease-out;
}

.button:not(.is-disabled):hover {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--accent-solid);
  box-shadow: var(--shadow-button);
  color: var(--text-on-accent);
}

.button--primary:not(.is-disabled):hover {
  background: var(--accent-solid-hover);
  box-shadow: none;
}

.button--secondary {
  border-color: var(--border-control);
  background: var(--surface-raised);
  color: var(--text-primary);
}

.button--secondary:not(.is-disabled):hover,
.button--quiet:hover {
  border-color: var(--accent-selected);
  background: var(--accent-subtle);
}

.button--quiet {
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
  border-color: var(--border-default);
  background: var(--surface-raised);
  color: var(--text-primary);
}

.button.is-disabled {
  border-color: var(--border-default);
  background: var(--surface-muted);
  box-shadow: none;
  color: var(--text-muted);
  cursor: not-allowed;
}

.hero {
  position: relative;
  min-height: 820px;
  padding-top: 164px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  top: -240px;
  left: 50%;
  width: 1000px;
  height: 650px;
  border: 1px solid color-mix(in srgb, var(--accent) 9%, transparent);
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 45%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 34%),
    radial-gradient(circle at 68% 52%, color-mix(in srgb, var(--accent-mint) 12%, transparent), transparent 36%);
  content: "";
  filter: blur(2px);
  pointer-events: none;
  transform: translateX(-50%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(520px, 1.14fr);
  align-items: center;
  gap: var(--space-16);
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow,
.kicker {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding: 7px var(--space-3);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border-default));
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--accent-subtle) 72%, transparent);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 14%, transparent);
}

.hero h1 {
  max-width: 760px;
  margin-bottom: var(--space-6);
  font-size: var(--font-page-title);
  letter-spacing: -0.065em;
}

.hero h1 span {
  background: linear-gradient(110deg, var(--accent), var(--accent-cyan) 48%, var(--accent-mint));
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: var(--space-8);
  font-size: 1.0625rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  padding: 0;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.75rem;
  list-style: none;
}

.hero-facts li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-facts svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--success);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.product-stage {
  --scene-tilt-x: 0deg;
  --scene-tilt-y: 0deg;
  --spotlight-x: 50%;
  --spotlight-y: 50%;
  position: relative;
  z-index: 1;
  min-height: 540px;
}

.product-stage::before {
  position: absolute;
  z-index: -1;
  inset: -96px;
  background: radial-gradient(
    circle 270px at var(--spotlight-x) var(--spotlight-y),
    color-mix(in srgb, var(--accent) 18%, transparent) 0,
    color-mix(in srgb, var(--accent) 8%, transparent) 42%,
    transparent 74%
  );
  content: "";
  filter: blur(36px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-normal) ease-out;
}

.product-stage.is-tilting::before {
  opacity: 1;
}

.stage-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(65px);
  opacity: 0.55;
  pointer-events: none;
}

.stage-glow--one {
  top: 10%;
  left: 10%;
  width: 280px;
  height: 280px;
  background: color-mix(in srgb, var(--accent) 34%, transparent);
}

.stage-glow--two {
  right: -10%;
  bottom: 0;
  width: 310px;
  height: 310px;
  background: color-mix(in srgb, var(--accent-mint) 26%, transparent);
}

.app-window {
  --window-scale: 1;
  --window-translate-x: 0%;
  position: absolute;
  top: 22px;
  left: 0;
  width: 680px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border-control) 70%, transparent);
  border-radius: 18px;
  background: var(--surface-raised);
  box-shadow: var(--shadow-dialog);
  transform:
    translateX(var(--window-translate-x))
    perspective(1400px)
    scale(var(--window-scale))
    rotateX(var(--scene-tilt-x))
    rotateY(var(--scene-tilt-y));
  transform-origin: center center;
  transform-style: preserve-3d;
  transition:
    transform var(--motion-slow) ease-out,
    box-shadow var(--motion-normal) ease-out;
  will-change: transform;
}

.app-window::after {
  position: absolute;
  z-index: 5;
  inset: -18px;
  border-radius: inherit;
  background: radial-gradient(
    circle 260px at var(--spotlight-x) var(--spotlight-y),
    color-mix(in srgb, var(--text-on-accent) 18%, transparent),
    color-mix(in srgb, var(--accent) 7%, transparent) 34%,
    transparent 76%
  );
  content: "";
  filter: blur(18px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-normal) ease-out;
}

.product-stage.is-tilting .app-window {
  box-shadow:
    0 36px 90px color-mix(in srgb, var(--text-primary) 18%, transparent),
    0 0 34px color-mix(in srgb, var(--accent) 16%, transparent);
  transition-duration: 70ms;
}

.product-stage.is-tilting .app-window::after {
  opacity: 0.72;
}

.window-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 42px;
  padding-inline: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--surface-subtle);
  color: var(--text-muted);
  font-size: var(--font-caption);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-control);
}

.window-dots span:first-child {
  background: var(--danger);
}

.window-dots span:nth-child(2) {
  background: var(--warning);
}

.window-dots span:last-child {
  background: var(--success);
}

.window-title {
  font-weight: 680;
}

.window-status {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 5px;
}

.window-status span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}

.app-layout {
  display: grid;
  grid-template-columns: 116px 1fr;
  height: 420px;
}

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-3) var(--space-2);
  border-right: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--surface-subtle) 65%, var(--surface-raised));
}

.mini-brand {
  display: grid;
  width: 30px;
  height: 30px;
  margin: 0 0 var(--space-3) 6px;
  place-items: center;
}

.mini-brand .brand-icon {
  width: 30px;
  height: 30px;
}

.side-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 7px;
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 9px;
  font-weight: 650;
  white-space: nowrap;
}

.side-item span {
  width: 12px;
  height: 12px;
  border: 1.5px solid currentColor;
  border-radius: 3px;
}

.side-item.is-active {
  background: var(--accent-subtle);
  color: var(--accent);
}

.sidebar-spacer {
  flex: 1;
}

.app-content {
  position: relative;
  background: var(--surface-raised);
}

.app-content-header {
  display: flex;
  height: 62px;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.app-content-header > div:first-child {
  display: flex;
  flex-direction: column;
}

.app-content-header strong {
  font-size: 12px;
}

.app-content-header span {
  color: var(--text-muted);
  font-size: 8px;
}

.mode-pill {
  padding: 4px 8px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  background: var(--surface-subtle);
  color: var(--text-secondary);
  font-size: 8px;
}

.message-area {
  padding: 22px 38px 76px;
}

.message {
  max-width: 85%;
  font-size: 10px;
}

.message--user {
  padding: 10px 12px;
  margin: 0 0 18px auto;
  border-radius: 10px 10px 2px 10px;
  background: var(--accent-solid);
  color: var(--text-on-accent);
}

.assistant-label {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: var(--space-2);
}

.assistant-label strong {
  font-size: 10px;
}

.assistant-avatar {
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
}

.assistant-avatar .brand-icon {
  width: 23px;
  height: 23px;
}

.message--assistant p {
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
  line-height: 1.7;
}

.tool-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 9px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-control);
  background: var(--surface-subtle);
}

.tool-icon {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--accent);
}

.tool-icon svg {
  width: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 2;
}

.tool-card > div:nth-child(2) {
  display: flex;
  flex-direction: column;
}

.tool-card strong {
  font-size: 8px;
}

.tool-card span {
  color: var(--text-muted);
  font-size: 7px;
}

.tool-card .tool-state {
  color: var(--success);
}

.plan-lines {
  display: grid;
  gap: 6px;
  margin-top: var(--space-3);
}

.plan-lines span {
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--surface-muted);
}

.plan-lines span:nth-child(2) {
  width: 88%;
}

.plan-lines span:nth-child(3) {
  width: 62%;
}

.composer {
  position: absolute;
  right: 28px;
  bottom: 18px;
  left: 28px;
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--border-control);
  border-radius: 10px;
  background: var(--surface-raised);
  box-shadow: 0 5px 18px color-mix(in srgb, var(--text-primary) 7%, transparent);
  color: var(--text-muted);
  font-size: 9px;
}

.composer-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.composer-actions span {
  padding: 3px 7px;
  border-radius: var(--radius-pill);
  background: var(--surface-subtle);
  color: var(--text-secondary);
  font-size: 7px;
}

.composer-actions b {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 7px;
  background: var(--accent-solid);
  color: var(--text-on-accent);
}

.floating-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--border-control) 70%, transparent);
  border-radius: var(--radius-card);
  background: var(--surface-overlay);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  transform:
    perspective(1400px)
    rotateX(var(--scene-tilt-x))
    rotateY(var(--scene-tilt-y))
    translateZ(28px);
  transform-origin: center;
  transform-style: preserve-3d;
  transition:
    transform var(--motion-slow) ease-out,
    box-shadow var(--motion-normal) ease-out;
  will-change: transform;
}

.product-stage.is-tilting .floating-card {
  box-shadow:
    0 18px 38px color-mix(in srgb, var(--text-primary) 15%, transparent),
    0 0 22px color-mix(in srgb, var(--accent) 12%, transparent);
  transition-duration: 70ms;
}

.floating-card > span:last-child {
  display: flex;
  flex-direction: column;
}

.floating-card strong {
  font-size: 10px;
}

.floating-card small {
  color: var(--text-muted);
  font-size: 8px;
}

.floating-card--approval {
  right: -32px;
  bottom: 58px;
}

.floating-card--scope {
  top: -5px;
  right: -20px;
}

.floating-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--success-subtle);
  color: var(--success);
}

.floating-icon svg {
  width: 17px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.scope-dot {
  width: 9px;
  height: 9px;
  border: 2px solid var(--surface-raised);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.proof-strip {
  border-block: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--surface-raised) 55%, transparent);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-block: var(--space-8);
}

.proof-grid div {
  display: flex;
  min-height: 56px;
  flex-direction: column;
  justify-content: center;
  padding-inline: var(--space-8);
  border-right: 1px solid var(--border-subtle);
}

.proof-grid div:first-child {
  padding-left: 0;
}

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

.proof-grid strong {
  color: var(--text-primary);
  font-size: 1.25rem;
}

.proof-grid span {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.55fr);
  align-items: end;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.section-heading h2,
.section-heading p {
  margin-bottom: 0;
}

.kicker {
  margin-bottom: var(--space-3);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.feature-card {
  position: relative;
  min-height: 330px;
  padding: var(--space-8);
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-card);
  background: var(--surface-raised);
  transition:
    border-color var(--motion-normal) ease-out,
    transform var(--motion-normal) ease-out,
    box-shadow var(--motion-normal) ease-out;
}

.feature-card:hover {
  border-color: var(--accent-selected);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.feature-card--wide {
  grid-column: span 2;
}

.feature-card--accent {
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--accent-mint) 14%, transparent), transparent 40%),
    radial-gradient(circle at 0 100%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 42%),
    var(--surface-raised);
}

.feature-icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: var(--space-8);
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--border-default));
  border-radius: var(--radius-card);
  background: var(--accent-subtle);
  color: var(--accent);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.feature-number {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  color: var(--text-muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.6875rem;
}

.feature-card h3 {
  margin-bottom: var(--space-3);
}

.feature-card p {
  max-width: 580px;
  margin-bottom: 0;
}

.mode-row,
.provider-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.mode-row span,
.provider-pills span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  background: var(--surface-subtle);
  color: var(--text-secondary);
  font-size: 0.6875rem;
  font-weight: 680;
}

.mode-row small {
  color: var(--text-muted);
  font-size: var(--font-caption);
  font-weight: 500;
}

.mode-row .is-accent {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border-default));
  background: var(--accent-subtle);
  color: var(--accent);
}

.download-section {
  padding-top: var(--section-space);
}

.download-section + .features-section {
  padding-top: 0;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.download-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-6);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-card);
  background: var(--surface-raised);
}

.download-card h3 {
  margin: 3px 0 5px;
}

.download-card p {
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.platform-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: var(--radius-card);
  background: var(--surface-subtle);
  color: var(--text-primary);
}

.platform-icon svg {
  width: 23px;
  height: 23px;
  fill: currentColor;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.3;
}

.download-card:nth-child(3) .platform-icon svg {
  fill: none;
}

.button--download {
  grid-column: 1 / -1;
  width: 100%;
  margin-top: var(--space-2);
}

.domestic-support {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-6);
  margin-top: var(--space-6);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border-default));
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--accent-mint) 11%, transparent), transparent 42%),
    var(--surface-raised);
}

.domestic-support h3 {
  margin-bottom: var(--space-2);
}

.domestic-support > div:first-child > p:last-child {
  margin-bottom: 0;
  font-size: 0.75rem;
}

.domestic-support__items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.domestic-support__items div {
  display: flex;
  min-height: 72px;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-control);
  background: var(--surface-subtle);
}

.domestic-support__items span {
  color: var(--text-muted);
  font-size: var(--font-caption);
}

.domestic-support__items strong {
  margin-top: var(--space-1);
  font-size: 0.8125rem;
}

.assistant-section {
  border-block: 1px solid color-mix(in srgb, var(--text-on-inverse) 12%, transparent);
  background: var(--surface-inverse);
  color: var(--text-on-inverse);
}

.assistant-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(520px, 1.2fr);
  gap: 96px;
}

.assistant-intro {
  position: sticky;
  top: 112px;
  align-self: start;
}

.assistant-intro h2 {
  color: var(--text-on-inverse);
}

.assistant-intro p:not(.kicker) {
  color: color-mix(in srgb, var(--text-on-inverse) 70%, transparent);
}

.assistant-mark {
  width: 76px;
  height: 76px;
  margin-bottom: var(--space-8);
}

.assistant-mark .brand-icon {
  width: 76px;
  height: 76px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  color: var(--accent-cyan);
  font-weight: 750;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.assistant-list {
  border-top: 1px solid color-mix(in srgb, var(--text-on-inverse) 18%, transparent);
}

.assistant-list article {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-8);
  border-bottom: 1px solid color-mix(in srgb, var(--text-on-inverse) 18%, transparent);
}

.assistant-number {
  padding-top: 4px;
  color: color-mix(in srgb, var(--text-on-inverse) 42%, transparent);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.6875rem;
}

.assistant-list h3 {
  margin-bottom: var(--space-3);
  color: var(--text-on-inverse);
}

.assistant-list p {
  margin-bottom: 0;
  color: color-mix(in srgb, var(--text-on-inverse) 67%, transparent);
}

.site-footer {
  padding-block: var(--space-12);
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-raised);
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-8);
}

.brand--footer {
  font-size: 1rem;
}

.brand--footer .brand-icon {
  width: 30px;
  height: 30px;
}

.footer-inner p {
  margin-bottom: 0;
  font-size: 0.75rem;
}

.footer-links {
  display: flex;
  gap: var(--space-6);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 650;
  text-decoration: none;
}

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

.footer-inner small {
  grid-column: 1 / -1;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: var(--font-caption);
}

@media (max-width: 1199px) {
  .section-inner,
  .header-inner {
    width: min(100% - 48px, 1040px);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(450px, 1.1fr);
    gap: var(--space-10);
  }

  .app-window {
    --window-scale: 0.9;
    width: 620px;
    transform-origin: center top;
  }

  .floating-card--approval {
    right: -10px;
  }

  .assistant-grid {
    gap: var(--space-16);
  }
}

@media (max-width: 959px) {
  :root {
    --section-space: var(--space-20);
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .site-navigation {
    justify-self: center;
  }

  .header-github {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 140px;
  }

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

  .hero-copy {
    max-width: 720px;
    text-align: center;
  }

  .eyebrow {
    margin-inline: auto;
  }

  .hero-lead {
    margin-inline: auto;
  }

  .hero-actions,
  .hero-facts {
    justify-content: center;
  }

  .product-stage {
    width: min(100%, 690px);
    min-height: 500px;
    margin-inline: auto;
  }

  .app-window {
    --window-scale: 0.93;
    width: 680px;
    transform-origin: center top;
  }

  .floating-card--scope {
    right: 0;
  }

  .floating-card--approval {
    right: 0;
    bottom: 34px;
  }

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

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

  .proof-grid div:nth-child(n + 3) {
    border-top: 1px solid var(--border-subtle);
  }

  .proof-grid div:nth-child(3) {
    padding-left: 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .section-heading > p {
    max-width: 640px;
  }

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

  .feature-card--wide {
    grid-column: span 2;
  }

  .download-grid {
    grid-template-columns: 1fr;
    max-width: 680px;
    margin-inline: auto;
  }

  .download-card {
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }

  .domestic-support {
    grid-template-columns: 1fr;
  }

  .button--download {
    grid-column: auto;
    width: auto;
    margin-top: 0;
  }

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

  .assistant-intro {
    position: static;
    max-width: 720px;
  }
}

@media (max-width: 719px) {
  :root {
    --section-space: var(--space-16);
  }

  html {
    scroll-padding-top: 72px;
  }

  .section-inner,
  .header-inner {
    width: calc(100% - 32px);
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
    min-height: 64px;
  }

  .brand {
    font-size: 1rem;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
  }

  .menu-toggle {
    display: inline-grid;
    justify-self: end;
    margin-right: var(--space-2);
  }

  .header-actions {
    grid-column: 3;
    grid-row: 1;
  }

  .site-navigation {
    position: absolute;
    top: calc(100% + 1px);
    right: var(--space-4);
    left: var(--space-4);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-2);
    border-radius: var(--radius-card);
    background: var(--surface-raised);
    box-shadow: var(--shadow-dialog);
  }

  .site-header.is-menu-open .site-navigation {
    display: flex;
  }

  .site-navigation a {
    display: flex;
    min-height: 44px;
    align-items: center;
    border-radius: var(--radius-control);
  }

  .hero {
    padding-top: 118px;
  }

  .hero::before {
    width: 600px;
  }

  .hero h1 {
    letter-spacing: -0.055em;
  }

  .hero-lead {
    font-size: 0.9375rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-facts {
    align-items: center;
    flex-direction: column;
    gap: var(--space-2);
  }

  .product-stage {
    min-height: 365px;
    margin-top: var(--space-4);
  }

  .app-window {
    --window-scale: 0.59;
    --window-translate-x: -50%;
    left: 50%;
    width: 680px;
    transform-origin: top center;
  }

  .floating-card--scope {
    top: -2px;
    right: 2px;
  }

  .floating-card--approval {
    right: 2px;
    bottom: 18px;
  }

  .floating-card {
    padding: var(--space-2) 10px;
  }

  .floating-card strong {
    font-size: 9px;
  }

  .floating-card small {
    max-width: 130px;
    font-size: 7px;
  }

  .floating-icon {
    width: 26px;
    height: 26px;
  }

  .proof-grid {
    grid-template-columns: 1fr;
    padding-block: var(--space-3);
  }

  .proof-grid div,
  .proof-grid div:first-child,
  .proof-grid div:nth-child(3) {
    padding: var(--space-3);
    border-top: 1px solid var(--border-subtle);
    border-right: 0;
    text-align: center;
  }

  .proof-grid div:first-child {
    border-top: 0;
  }

  .section-heading {
    margin-bottom: var(--space-8);
  }

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

  .feature-card,
  .feature-card--wide {
    grid-column: auto;
    min-height: 0;
    padding: var(--space-6);
  }

  .feature-icon {
    margin-bottom: var(--space-6);
  }

  .download-card {
    grid-template-columns: auto 1fr;
  }

  .button--download {
    grid-column: 1 / -1;
    width: 100%;
  }

  .domestic-support {
    padding: var(--space-4);
  }

  .domestic-support__items {
    grid-template-columns: 1fr;
  }

  .assistant-grid {
    gap: var(--space-12);
  }

  .assistant-mark {
    width: 64px;
    height: 64px;
  }

  .assistant-mark .brand-icon {
    width: 64px;
    height: 64px;
  }

  .assistant-list article {
    grid-template-columns: 32px 1fr;
    gap: var(--space-3);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .footer-links {
    flex-wrap: wrap;
    gap: var(--space-3) var(--space-6);
  }

  .footer-inner small {
    grid-column: auto;
  }
}

@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;
  }

  .feature-card:hover,
  .button:not(.is-disabled):hover {
    transform: none;
  }

  .product-stage::before,
  .app-window::after {
    display: none;
  }

  .app-window {
    transform:
      translateX(var(--window-translate-x))
      perspective(1400px)
      scale(var(--window-scale)) !important;
  }

  .floating-card {
    transform: none !important;
  }
}