* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px; line-height: 1.6; color: #1f2937; background: #fff;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid #e5e7eb; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: #111827; font-size: 18px; }
.logo:hover { text-decoration: none; }
.nav { display: flex; gap: 28px; }
.nav a { color: #374151; font-weight: 500; font-size: 15px; }
.nav a:hover { color: #2563eb; text-decoration: none; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: #111827; }

/* Hero */
.hero { padding: 96px 0 80px; background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%); }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.15; font-weight: 800;
  letter-spacing: -0.02em; color: #0f172a; margin-bottom: 20px; }
.lead { font-size: 18px; color: #4b5563; max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn { display: inline-block; padding: 12px 24px; border-radius: 8px;
  font-weight: 600; font-size: 15px; cursor: pointer; border: none;
  transition: transform 0.15s ease, background 0.15s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: #2563eb; color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-ghost { background: transparent; color: #2563eb; border: 1px solid #cbd5e1; }
.btn-ghost:hover { background: #f1f5f9; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: #f9fafb; }
.section h2 { font-size: clamp(26px, 3.5vw, 36px); font-weight: 700;
  color: #0f172a; margin-bottom: 8px; letter-spacing: -0.01em; }
.muted { color: #6b7280; }

/* Grid */
.grid { display: grid; gap: 24px; margin-top: 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px;
  padding: 28px; transition: border-color 0.2s, box-shadow 0.2s; }
.card:hover { border-color: #cbd5e1; box-shadow: 0 4px 16px rgba(0,0,0,0.04); }
.card-icon { display: inline-block; font-size: 13px; font-weight: 700; color: #2563eb;
  background: #eff6ff; padding: 6px 10px; border-radius: 6px; margin-bottom: 16px; }
.card h3 { font-size: 19px; font-weight: 700; color: #0f172a; margin-bottom: 10px; }
.card p { color: #4b5563; font-size: 15px; }

/* About */
.about { display: grid; gap: 40px; align-items: center;
  grid-template-columns: 1.5fr 1fr; margin-top: 40px; }
.about p { color: #4b5563; margin-bottom: 12px; }
.stats { list-style: none; display: grid; gap: 20px;
  background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 28px; }
.stats li { display: flex; align-items: baseline; gap: 12px; }
.stats strong { font-size: 32px; font-weight: 800; color: #2563eb; min-width: 60px; }
.stats span { color: #6b7280; font-size: 15px; }

/* Form */
.form { max-width: 560px; margin-top: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: block; margin-bottom: 16px; font-size: 14px;
  font-weight: 500; color: #374151; }
.form input, .form textarea { display: block; width: 100%; margin-top: 6px;
  padding: 10px 12px; border: 1px solid #d1d5db; border-radius: 8px;
  font: inherit; font-size: 15px; background: #fff; color: #111827;
  transition: border-color 0.15s; }
.form input:focus, .form textarea:focus { outline: none; border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form textarea { resize: vertical; }
.contact-info { margin-top: 24px; font-size: 15px; color: #4b5563; }

/* Footer */
.site-footer { padding: 32px 0; border-top: 1px solid #e5e7eb; background: #fff; }
.footer-inner { display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap; font-size: 14px; color: #6b7280; }

/* Responsive */
@media (max-width: 720px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .about { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
  .section { padding: 56px 0; }
}