/* Private AI-in-a-Box landing — Firebase static hosting */

:root {
  --bg: #080a0d;
  --bg-elevated: #0f1218;
  --surface: #151a22;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaef;
  --muted: #8b93a7;
  --accent: #3d8bfd;
  --accent-dim: rgba(61, 139, 253, 0.15);
  --warn: #f0a030;
  --radius: 12px;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 68rem;
  --space: clamp(1rem, 3vw, 2rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(61, 139, 253, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(240, 160, 48, 0.06), transparent);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #000;
  font-weight: 600;
  border-radius: 6px;
}

.skip-link:focus {
  left: 0.5rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #6ba8ff;
}

.wrap {
  width: min(100% - var(--space) * 2, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 10, 13, 0.85);
  backdrop-filter: blur(12px);
}

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

.logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.logo span {
  color: var(--accent);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.25rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.nav a:hover {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #061018;
}

.btn-primary:hover {
  background: #5a9dff;
  color: #061018;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Hero */
.hero {
  padding: clamp(3rem, 10vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  background: var(--accent-dim);
  color: #9ec5ff;
  border: 1px solid rgba(61, 139, 253, 0.35);
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 2.85rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.lead {
  margin: 0 0 1.5rem;
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 36ch;
}

.micro {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
}

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

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
  color: #a8b0c4;
}

.hero-card strong {
  color: #c5cde0;
  font-weight: 600;
}

.hero-card .line {
  display: block;
  padding-left: 0.75rem;
  border-left: 2px solid rgba(61, 139, 253, 0.45);
  margin-top: 0.5rem;
}

/* Sections */
section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  border-top: 1px solid var(--border);
}

section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: -0.02em;
}

section p {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 65ch;
}

section p:last-child {
  margin-bottom: 0;
}

.list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.list li {
  margin-bottom: 0.5rem;
}

.list li strong {
  color: var(--text);
}

.section-cta {
  margin-top: 1.5rem;
}

.callout {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
}

.callout.warn {
  border-color: rgba(240, 160, 48, 0.35);
  background: rgba(240, 160, 48, 0.06);
}

.callout p {
  margin: 0;
}

.callout p + p {
  margin-top: 0.75rem;
}

/* FAQ */
.faq {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .faq {
    grid-template-columns: 1fr 1fr;
  }
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
}

.faq-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--text);
}

.faq-item p {
  margin: 0;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.site-footer p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-meta {
  display: block;
  margin-top: 0.65rem;
}

.footer-meta a {
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-meta a:hover {
  color: var(--text);
}

/* Legal / long-form (privacy policy) */
.page-legal .legal-wrap {
  max-width: 44rem;
  margin: 0 auto;
}

.legal-breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.legal-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.legal-breadcrumb a:hover {
  color: var(--accent);
}

.legal-prose h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
}

.legal-prose .legal-updated {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

.legal-prose h2 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.legal-prose h2:first-of-type {
  margin-top: 0;
}

.legal-prose p,
.legal-prose li {
  color: var(--muted);
  font-size: 1rem;
}

.legal-prose ul {
  padding-left: 1.25rem;
}

.legal-prose li {
  margin-bottom: 0.45rem;
}

.legal-prose strong {
  color: var(--text);
}

.legal-callout {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  margin: 1.25rem 0;
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  border: 1px solid var(--border);
  border-left-width: 3px;
}

.legal-callout p {
  margin: 0;
}

.legal-callout p + p {
  margin-top: 0.5rem;
}

.footer-cta {
  margin-top: 0.5rem;
}

/* Credibility strip */
.cred {
  font-size: 0.95rem;
  color: var(--muted);
  font-style: italic;
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 0;
  max-width: 50ch;
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.12em 0.35em;
  border-radius: 4px;
}