:root {
  --abd-bg: #f6f7fb;
  --abd-surface: #ffffff;
  --abd-ink: #0f172a;
  --abd-muted: #475569;
  --abd-line: #dbe1ea;
  --abd-accent: #0f172a;
  --abd-accent-soft: #e8edf8;
  --abd-radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top right, #edf2ff, var(--abd-bg));
  color: var(--abd-ink);
  font-family: "Segoe UI", "Avenir Next", "Helvetica Neue", sans-serif;
}

.abd-wrap {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.abd-site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--abd-line);
}

.abd-header-wrap {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  min-height: 74px;
}

.abd-brand {
  color: var(--abd-ink);
  font-weight: 800;
  font-size: 1.1rem;
  text-decoration: none;
}

.abd-nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.abd-nav a {
  text-decoration: none;
  color: var(--abd-ink);
  font-weight: 600;
}

.abd-header-cta,
.abd-btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 0.65rem 1rem;
  font-weight: 700;
  border: 1px solid transparent;
  display: inline-block;
}

.abd-header-cta,
.abd-btn-primary {
  background: var(--abd-accent);
  color: #fff;
}

.abd-btn-ghost {
  border-color: var(--abd-line);
  color: var(--abd-ink);
  background: #fff;
}

.abd-nav-toggle {
  display: none;
  border: 1px solid var(--abd-line);
  background: #fff;
  border-radius: 10px;
  padding: 0.45rem 0.75rem;
}

.abd-site-main {
  min-height: 70vh;
  padding: 2rem 0 3rem;
}

.abd-home-hero {
  margin-top: 1rem;
}

.abd-home-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
}

.abd-home-chat-card,
.abd-feature,
.abd-content-page,
.abd-generic-page,
.abd-page-head {
  background: var(--abd-surface);
  border: 1px solid var(--abd-line);
  border-radius: var(--abd-radius);
  padding: 1.25rem;
}

.abd-eyebrow {
  color: #334155;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
}

.abd-home-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1rem;
}

.abd-feature-strip {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

.abd-page-head {
  margin-bottom: 1rem;
}

.abd-profile-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.abd-concierge-shell {
  width: min(1380px, 96vw);
  margin: 0 auto;
  min-height: calc(100vh - 140px);
  display: grid;
  grid-template-columns: 260px 1fr 260px;
  gap: 0.8rem;
}

.abd-concierge-left,
.abd-concierge-right,
.abd-concierge-main {
  background: var(--abd-surface);
  border: 1px solid var(--abd-line);
  border-radius: var(--abd-radius);
  padding: 1rem;
}

.abd-concierge-main .abd-chat-shell {
  min-height: 72vh;
  border: 0;
  padding: 0;
  background: transparent;
}

.abd-concierge-main .abd-chat-messages {
  max-height: 62vh;
}

.abd-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.abd-site-footer {
  border-top: 1px solid var(--abd-line);
  background: #fff;
  padding: 2rem 0;
}

.abd-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1rem;
}

.abd-site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.abd-site-footer a {
  text-decoration: none;
  color: var(--abd-muted);
}

@media (max-width: 980px) {
  .abd-home-grid,
  .abd-feature-strip,
  .abd-contact-grid,
  .abd-footer-grid {
    grid-template-columns: 1fr;
  }

  .abd-concierge-shell {
    grid-template-columns: 1fr;
  }

  .abd-concierge-left,
  .abd-concierge-right {
    display: none;
  }

  .abd-nav {
    display: none;
  }

  .abd-nav.is-open {
    display: block;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--abd-line);
    padding: 0.8rem 1rem;
  }

  .abd-nav ul {
    flex-direction: column;
    align-items: flex-start;
  }

  .abd-nav-toggle {
    display: inline-block;
  }
}