:root {
  --bg0: #050a14;
  --bg1: #07182a;
  --text: #e9f1ff;
  --muted: rgba(233, 241, 255, 0.72);
  --line: rgba(104, 202, 231, 0.22);

  --brandA: #68cae7;
  --brandB: #398fe3;
  --brandC: #4ba2d7;

  --surface: rgba(255, 255, 255, 0.06);
  --surface2: rgba(255, 255, 255, 0.09);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.55);

  --radius: 18px;
  --radius-sm: 14px;

  --container: 1120px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg0: #f7fbff;
    --bg1: #e8f3ff;
    --text: #07182a;
    --muted: rgba(7, 24, 42, 0.7);
    --surface: rgba(7, 24, 42, 0.06);
    --surface2: rgba(7, 24, 42, 0.09);
    --line: rgba(57, 143, 227, 0.22);
    --shadow: 0 30px 80px rgba(7, 24, 42, 0.18);
  }
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 0%, rgba(104, 202, 231, 0.22), transparent 55%),
    radial-gradient(900px 700px at 90% 25%, rgba(57, 143, 227, 0.2), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  letter-spacing: -0.01em;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 2px solid rgba(104, 202, 231, 0.9);
  outline-offset: 3px;
  border-radius: 10px;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  transform: translateY(-160%);
  transition: transform 160ms ease;
  z-index: 9999;
}

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

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(5, 10, 20, 0.7), rgba(5, 10, 20, 0.35));
}

@media (prefers-color-scheme: light) {
  .site-header {
    background: linear-gradient(180deg, rgba(247, 251, 255, 0.85), rgba(247, 251, 255, 0.6));
    border-bottom: 1px solid rgba(7, 24, 42, 0.08);
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-logo {
  border-radius: 12px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.32);
}

.brand-name {
  font-size: 1.05rem;
}

.site-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-nav a {
  padding: 0.55rem 0.7rem;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  width: 44px;
  height: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.nav-toggle-bars {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 0 auto;
  position: relative;
  border-radius: 2px;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.nav-toggle-bars::before {
  top: -6px;
}

.nav-toggle-bars::after {
  top: 6px;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.25rem);
    right: 1rem;
    left: 1rem;
    display: grid;
    gap: 0.4rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    background: rgba(5, 10, 20, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow);
    transform-origin: top;
    transform: scaleY(0.92);
    opacity: 0;
    pointer-events: none;
    transition: opacity 140ms ease, transform 140ms ease;
  }

  @media (prefers-color-scheme: light) {
    .site-nav {
      background: rgba(247, 251, 255, 0.9);
      border: 1px solid rgba(7, 24, 42, 0.12);
    }
  }

  body[data-nav-open="true"] .site-nav {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 0.7rem 0.85rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
  }
}

.hero {
  padding: 4.5rem 0 2.5rem;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.25rem;
  align-items: center;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.38rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.hero-title {
  font-size: clamp(2.4rem, 3.8vw, 3.6rem);
  line-height: 1.04;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

.text-gradient {
  background: linear-gradient(90deg, var(--brandA), var(--brandB));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.05rem;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: -0.01em;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  text-decoration: none;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  border-color: rgba(104, 202, 231, 0.38);
  background: linear-gradient(90deg, rgba(104, 202, 231, 0.95), rgba(57, 143, 227, 0.95));
  color: #06131f;
}

.btn-primary:hover {
  border-color: rgba(104, 202, 231, 0.55);
}

.btn-ghost {
  border-color: rgba(104, 202, 231, 0.22);
}

.microcopy {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.95rem;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--brandA), var(--brandB));
  box-shadow: 0 0 0 5px rgba(104, 202, 231, 0.1);
}

.hero-media {
  position: relative;
  display: grid;
  place-items: center;
}

.chat-preview {
  width: min(460px, 100%);
  border-radius: 28px;
  padding: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
  overflow: hidden;
}

.chat-preview::before {
  content: "";
  position: absolute;
  inset: -40px;
  background: radial-gradient(closest-side, rgba(104, 202, 231, 0.18), transparent 62%),
    radial-gradient(closest-side, rgba(57, 143, 227, 0.16), transparent 62%);
  filter: blur(18px);
  opacity: 0.9;
  pointer-events: none;
}

.chat-preview > * {
  position: relative;
  z-index: 1;
}

.chat-stage {
  display: grid;
  gap: 0.65rem;
  padding: 1.05rem;
  border-radius: 22px;
  background: rgba(7, 24, 42, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
  min-height: 280px;
  align-content: start;
}

@media (prefers-color-scheme: light) {
  .chat-stage {
    background: rgba(247, 251, 255, 0.65);
    border: 1px solid rgba(7, 24, 42, 0.12);
  }
}

.bubble {
  padding: 0.75rem 0.9rem;
  border-radius: 18px;
  line-height: 1.55;
  font-weight: 650;
  font-size: 0.96rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.bubble-ai {
  max-width: 86%;
  border-radius: 18px 18px 18px 7px;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.22);
}

.bubble-user {
  max-width: 86%;
  margin-left: auto;
  border-radius: 18px 18px 7px 18px;
  background: linear-gradient(90deg, rgba(104, 202, 231, 0.18), rgba(57, 143, 227, 0.18));
  border: 1px solid rgba(104, 202, 231, 0.22);
}

@media (prefers-color-scheme: light) {
  .bubble {
    box-shadow: 0 16px 45px rgba(7, 24, 42, 0.12);
  }
}

.phone-frame {
  width: min(370px, 100%);
  border-radius: 32px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 2;
}

.phone-shot {
  width: 100%;
  border-radius: 24px;
}

.hero-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(closest-side, rgba(104, 202, 231, 0.22), transparent 60%),
    radial-gradient(closest-side, rgba(57, 143, 227, 0.22), transparent 60%);
  filter: blur(16px);
  z-index: 1;
  pointer-events: none;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02));
}

@media (prefers-color-scheme: light) {
  .section-alt {
    border-top: 1px solid rgba(7, 24, 42, 0.08);
    border-bottom: 1px solid rgba(7, 24, 42, 0.08);
  }
}

.section-head {
  margin-bottom: 2rem;
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.55rem, 2.1vw, 2.1rem);
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin: 0;
  max-width: 68ch;
  color: var(--muted);
  line-height: 1.65;
}

.grid {
  display: grid;
  gap: 1rem;
}

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

.card {
  border-radius: var(--radius);
  padding: 1.15rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
}

@media (prefers-color-scheme: light) {
  .card {
    box-shadow: 0 18px 50px rgba(7, 24, 42, 0.12);
  }
}

.card-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(104, 202, 231, 0.22), rgba(57, 143, 227, 0.16));
  border: 1px solid rgba(104, 202, 231, 0.22);
  margin-bottom: 0.9rem;
  color: var(--text);
}

.icon {
  width: 22px;
  height: 22px;
}

.card-title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.card-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.25rem;
  align-items: start;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: grid;
  gap: 0.65rem;
  color: var(--muted);
  font-weight: 650;
}

.checklist li {
  position: relative;
  padding-left: 1.6rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 1rem;
  height: 1rem;
  border-radius: 6px;
  background: radial-gradient(circle at 30% 30%, var(--brandA), var(--brandB));
  box-shadow: 0 0 0 4px rgba(104, 202, 231, 0.12);
}

.callout {
  border-radius: var(--radius);
  padding: 1.35rem;
  background: linear-gradient(180deg, rgba(104, 202, 231, 0.11), rgba(57, 143, 227, 0.08));
  border: 1px solid rgba(104, 202, 231, 0.18);
  box-shadow: var(--shadow);
}

.callout-title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.callout-text {
  margin: 0 0 0.75rem;
  color: var(--muted);
  line-height: 1.65;
}

.callout-footnote {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.faq {
  display: grid;
  gap: 0.75rem;
}

.faq-item {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  padding: 1rem 1.1rem;
  font-weight: 800;
  color: var(--text);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--muted);
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-body {
  padding: 0 1.1rem 1.05rem;
  color: var(--muted);
  line-height: 1.65;
}

.faq-body p {
  margin: 0.5rem 0 0;
}

.cta-banner {
  margin-top: 2rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid rgba(104, 202, 231, 0.18);
  background: radial-gradient(800px 220px at 15% 0%, rgba(104, 202, 231, 0.18), transparent 60%),
    radial-gradient(800px 220px at 85% 100%, rgba(57, 143, 227, 0.18), transparent 60%),
    rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-banner-title {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.cta-banner-text {
  margin: 0;
  color: var(--muted);
}

.page {
  padding: 2.75rem 0 4rem;
}

.page-hero {
  padding: 1.5rem 0 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 1.75rem;
}

.page-title {
  margin: 0 0 0.35rem;
  font-size: clamp(2rem, 2.6vw, 2.6rem);
  letter-spacing: -0.03em;
}

.page-subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.prose {
  max-width: 80ch;
}

.prose h2 {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.prose h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
}

.prose p,
.prose li {
  color: var(--muted);
  line-height: 1.75;
}

.prose ul {
  padding-left: 1.2rem;
}

.notice {
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
  border: 1px solid rgba(104, 202, 231, 0.18);
  background: rgba(104, 202, 231, 0.08);
}

.notice h2 {
  margin-top: 0;
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.18);
}

@media (prefers-color-scheme: light) {
  .site-footer {
    border-top: 1px solid rgba(7, 24, 42, 0.08);
    background: rgba(255, 255, 255, 0.55);
  }
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
}

.footer-brand img {
  border-radius: 10px;
}

.footer-links {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-weight: 650;
}

.footer-meta {
  color: var(--muted);
  font-weight: 650;
}

@media (max-width: 980px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.25rem;
  }

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

  .phone-frame {
    width: min(420px, 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}