/* Global style */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1b1f25;
  --muted: #6a7180;
  --brand: #1877f2;
  --brand-dark: #145dbf;
  --accent: #ff8b03;
  --border: #e3e6eb;
  --radius: 12px;
  font-size: 16px;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Inter", "Segoe UI", Helvetica, Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1160px, 95%); margin: 0 auto; }

.header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; }
.logo { display: flex; align-items: center; gap: 0.5rem; }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-links a { color: var(--muted); font-weight: 600; }
.nav-links a.active, .nav-links a:hover { color: var(--text); }
.menu-btn { display: none; border: 1px solid var(--border); background: #fff; color: var(--text); border-radius: 8px; padding: 0.5rem; cursor: pointer; }

.hero { background: linear-gradient(135deg, #eaf1ff 0%, #f8fbff 100%); padding: 5rem 0 4rem; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); margin: 0 0 1rem; }
.hero p { max-width: 36em; color: var(--muted); }
.hero .cta { display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1.25rem; background: var(--brand); border: 0; color: #fff; padding: 0.85rem 1.25rem; border-radius: 999px; font-weight: 700; }
.hero .cta:hover { background: var(--brand-dark); }

.section { padding: 3rem 0; background: var(--surface); border-bottom: 1px solid var(--border); }
.section:nth-child(even) .section-inner { background: transparent; }
.section h2 { margin-top: 0; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(230px,1fr)); gap: 1rem; }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; box-shadow: 0 4px 14px rgba(36,42,54,0.06); }
.card h3 { margin: 0 0 0.5rem; }
.card p { margin: 0; color: var(--muted); }

.cta-strip { background: var(--brand); color: #fff; padding: 2rem 0; text-align: center; }
.cta-strip a { color: #fff; font-weight: 700; }

.team-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 1rem; }
.team-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.team-item h4 { margin: 0 0 0.5rem; }
.team-item span { color: var(--brand); font-weight: 700; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form, .contact-info { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.contact-form label { display: block; margin-bottom: 0.5rem; color: var(--muted); font-weight: 600; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 0.85rem; margin-bottom: 1rem; font-size: 1rem; }
.contact-form button { width: 100%; border: 0; padding: 0.85rem; border-radius: 8px; background: var(--brand); color: #fff; font-weight: 700; cursor: pointer; }
.contact-form button:hover { background: var(--brand-dark); }

.footer { background: #131a28; color: #d4d7de; padding: 2rem 0; }
.footer .container { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 1rem; }
.footer a { color: #9ab1da; }
.footer a:hover { color: #fff; }
.footer small { color: #8e9eb6; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .nav-links { position: absolute; top: 80px; right: 0; flex-direction: column; background: #fff; width: 220px; padding: 1rem; border: 1px solid var(--border); display: none; }
  .nav-links.open { display: flex; }
  .menu-btn { display: inline-flex; }
}

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