:root {
  color-scheme: light;
  --ink: #18202f;
  --muted: #5a6475;
  --line: #d8dee8;
  --panel: #ffffff;
  --soft: #f4f7fb;
  --brand: #0f7a7a;
  --brand-dark: #0b5558;
  --accent: #c8522f;
  --ok: #287455;
  --shadow: 0 18px 45px rgba(24, 32, 47, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--brand-dark);
  text-underline-offset: 3px;
}

.site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
}

.nav {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 14px 22px;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--brand);
  border-radius: 6px;
  color: white;
  display: inline-flex;
  font-size: 15px;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--brand-dark);
}

.hero {
  background:
    linear-gradient(135deg, rgba(15, 122, 122, 0.1), rgba(200, 82, 47, 0.1)),
    var(--soft);
}

.hero-inner,
.section,
.footer-inner {
  margin: 0 auto;
  max-width: 1120px;
  padding: 64px 22px;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1.05fr) minmax(310px, 0.95fr);
}

.eyebrow {
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: clamp(2.35rem, 6vw, 4.7rem);
  max-width: 850px;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.55rem);
  margin-bottom: 16px;
}

h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.lead {
  color: var(--muted);
  font-size: 1.13rem;
  max-width: 720px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 7px;
  display: inline-flex;
  font-weight: 750;
  min-height: 44px;
  padding: 10px 16px;
  text-decoration: none;
}

.button.primary {
  background: var(--brand);
  color: white;
}

.button.secondary {
  background: white;
  border-color: var(--line);
  color: var(--ink);
}

.demo-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.demo-top {
  align-items: center;
  background: #202a3a;
  color: white;
  display: flex;
  justify-content: space-between;
  padding: 14px 16px;
}

.demo-top strong {
  font-size: 14px;
}

.status {
  color: #a9f2d0;
  font-size: 13px;
}

.chat {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.bubble {
  border-radius: 8px;
  max-width: 86%;
  padding: 12px 14px;
}

.bubble.user {
  background: #edf2ff;
  justify-self: end;
}

.bubble.bot {
  background: #f7f3ef;
}

.result-list {
  display: grid;
  gap: 8px;
  margin-top: 6px;
}

.result {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px;
}

.result strong {
  display: block;
}

.section.white {
  background: white;
  max-width: none;
}

.section.white > .section-inner {
  margin: 0 auto;
  max-width: 1120px;
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

.support-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.policy-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.policy-card {
  margin: 18px 0;
}

.card p,
.policy-card p,
.policy-card li {
  color: var(--muted);
}

.notice {
  background: #fff8ed;
  border: 1px solid #efd5b0;
  border-radius: 8px;
  margin-top: 22px;
  padding: 16px;
}

.page-title {
  background: white;
  border-bottom: 1px solid var(--line);
}

.page-title .section {
  padding-bottom: 42px;
  padding-top: 48px;
}

.content {
  margin: 0 auto;
  max-width: 860px;
  padding: 42px 22px 64px;
}

.content ul {
  padding-left: 22px;
}

.meta-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.meta-item {
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.footer {
  background: #18202f;
  color: white;
}

.footer-inner {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding-bottom: 28px;
  padding-top: 28px;
}

.footer a {
  color: #c8f5ef;
}

.footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

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

  .hero-inner,
  .section,
  .footer-inner {
    padding: 42px 18px;
  }

  .footer-inner {
    flex-direction: column;
  }
}