/* Aixentium landing page — plain CSS, no dependencies, mobile-first. */
:root {
  --navy: #0f2a44;
  --blue: #2563eb;
  --teal: #0d9488;
  --ink: #1e293b;
  --muted: #475569;
  --bg: #ffffff;
  --bg-alt: #f1f5f9;
  --line: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--blue); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
}
.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
}
.nav { display: flex; gap: 16px; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:hover { text-decoration: underline; }

.hero { padding: 56px 0 48px; background: linear-gradient(180deg, #f8fafc, #fff); }
.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}
.hero h1 {
  margin: 0 0 16px;
  color: var(--navy);
  font-size: 2rem;
  line-height: 1.2;
  max-width: 28ch;
}
.hero-sub { color: var(--muted); font-size: 1.1rem; max-width: 62ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  min-height: 48px;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--navy); }
.btn-secondary { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-secondary:hover { border-color: var(--blue); }

.section { padding: 48px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { color: var(--navy); font-size: 1.6rem; line-height: 1.3; margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 68ch; }
.note { color: var(--muted); max-width: 68ch; }

.cards { display: grid; gap: 16px; margin: 24px 0; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.card h3 { margin: 0 0 8px; color: var(--navy); }
.card p { margin: 0; color: var(--muted); }

.services { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 16px; }
.services li { border-top: 1px solid var(--line); padding-top: 16px; }
.services strong { display: block; color: var(--navy); }
.services span { color: var(--muted); }

.contact-wrap { max-width: 640px; }
.contact-form { display: grid; gap: 16px; margin-top: 24px; }
.contact-form label { display: grid; gap: 6px; font-weight: 600; color: var(--navy); }
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  font-weight: 400;
}
.form-notice {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid #fde68a;
  background: #fffbeb;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); }
.site-footer p { margin: 0; font-weight: 600; color: var(--navy); }

@media (min-width: 720px) {
  .hero { padding: 80px 0 64px; }
  .hero h1 { font-size: 2.6rem; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .section { padding: 64px 0; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --navy: #dbeafe;
    --ink: #e2e8f0;
    --muted: #cbd5e1;
    --bg: #0f172a;
    --bg-alt: #1e293b;
    --line: #334155;
  }
  .site-header, .card, .btn-secondary { background: #0f172a; }
  .hero { background: linear-gradient(180deg, #1e293b, #0f172a); }
  .form-notice { background: #422006; border-color: #92400e; }
}