:root {
  --bg: #0f172a;        /* slate-900 */
  --panel: #111827;     /* gray-900 */
  --text: #e5e7eb;      /* gray-200 */
  --muted: #9ca3af;     /* gray-400 */
  --primary: #2563eb;   /* blue-600 */
  --primary-2: #1d4ed8; /* blue-700 */
  --accent: #22c55e;    /* green-500 */
  --card: #0b1220;      /* deep panel */
  --alt: #0a1428;       /* slight alt background */
  --danger: #ef4444;    /* red-500 */
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.55;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15,23,42,0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; color: #fff; letter-spacing: 0.2px;
}
.brand .brand-mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: 7px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 800;
}

.nav-links a {
  margin-left: 18px; color: var(--text); font-weight: 600;
  opacity: 0.9;
}
.nav-links a:hover { opacity: 1; }

.hero {
  background: radial-gradient(1200px 400px at 20% -10%, rgba(37,99,235,0.2), transparent),
              radial-gradient(900px 300px at 90% 10%, rgba(34,197,94,0.18), transparent);
  padding: 80px 0 60px;
}
.hero-inner {
  text-align: center;
}
.hero h1 {
  font-size: 2.2rem;
  margin: 0 0 16px;
}
.lead {
  color: var(--muted);
  max-width: 800px; margin: 0 auto 20px;
}
.cta { display: inline-flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 18px; border-radius: 10px;
  border: 0; cursor: pointer; font-weight: 700;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 6px 20px rgba(37,99,235,0.25);
}
.btn-primary:hover { background: var(--primary-2); }
.note { color: var(--muted); font-size: 0.9rem; }

.section { padding: 64px 0; }
.section.alt { background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.0)); }

.grid2 {
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
@media (min-width: 800px) {
  .grid2 { grid-template-columns: 1fr 1fr; gap: 28px; }
}

.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 20px;
}

.checks { list-style: none; padding: 0; margin: 16px 0 0; }
.checks li::before {
  content: "✔";
  color: var(--accent);
  margin-right: 10px;
}
.checks li { margin: 10px 0; color: var(--text); }

.cards {
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
@media (min-width: 900px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}
.tile {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 18px;
}
.tile h3 { margin-top: 0; }

.contact-form {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 20px;
  margin-top: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group input, .form-group textarea {
  background: #0a1222; color: #fff; border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px; padding: 12px; outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.25);
}
.form-check { display: flex; align-items: flex-start; gap: 10px; margin: 12px 0 8px; }
.form-check input { margin-top: 3px; }
.form-status { min-height: 20px; color: var(--muted); margin-top: 10px; }
.form-status.ok { color: var(--accent); }
.form-status.err { color: var(--danger); }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 30px;
  background: var(--alt);
}
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
@media (min-width: 900px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
.legal { border-top: 1px solid rgba(255,255,255,0.06); margin-top: 18px; padding: 14px 0 30px; color: var(--muted); font-size: 0.95rem; }