:root {
  --navy: #0f1b33;
  --blue: #2f6bff;
  --blue-light: #eaf1ff;
  --bg-soft: #eef2fb;
  --text-muted: #5b6472;
  --border: #e5e9f2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: #fff;
}

a { text-decoration: none; color: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
}

.brand svg { display: block; }

.nav-links {
  display: flex;
  gap: 32px;
  font-weight: 500;
  color: var(--navy);
}

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

/* Hero */
.hero {
  background: linear-gradient(180deg, #f3f7fe 0%, #e8effc 100%);
  text-align: center;
  padding: 100px 24px 110px;
}

.badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--blue);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 3.1rem;
  line-height: 1.15;
  font-weight: 800;
  max-width: 900px;
  margin: 0 auto 24px;
}

.hero h1 .accent { color: var(--blue); }

.hero p {
  max-width: 640px;
  margin: 0 auto 36px;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-dark {
  background: var(--navy);
  color: #fff;
}

.btn-dark:hover { background: #1b2c4d; }

.btn-blue {
  background: var(--blue);
  color: #fff;
  width: 100%;
}

.btn-blue:hover { background: #1f57e0; }

/* Page header (non-home pages) */
.page-head {
  text-align: center;
  padding: 70px 24px 20px;
}

.page-head h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.underline {
  width: 60px;
  height: 4px;
  background: var(--blue);
  margin: 0 auto 30px;
  border-radius: 2px;
}

.page-head h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.page-head p {
  max-width: 680px;
  margin: 0 auto;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 40px 24px 90px;
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 26px;
  background: #fff;
}

.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--blue-light);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

/* Portfolio */
.product {
  display: flex;
  align-items: center;
  gap: 48px;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 40px;
  max-width: 1000px;
  margin: 0 auto 32px;
  background: #fafcff;
}

.product.reverse { flex-direction: row-reverse; }

.product-visual {
  flex: 0 0 260px;
  height: 220px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: 800;
  font-size: 1.1rem;
  padding: 20px;
}

.product-body { flex: 1; }

.tag {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.product-body h3 {
  font-size: 1.6rem;
  margin: 0 0 14px;
}

.product-body p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--navy);
  font-size: 0.95rem;
}

.check-list .dot {
  flex: 0 0 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--blue-light);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  margin-top: 2px;
}

/* Contact */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 48px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px 24px 100px;
}

.contact-wrap h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.contact-wrap > .left p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item h4 { margin: 0 0 4px; font-size: 1rem; }
.contact-item div.meta { color: var(--text-muted); font-size: 0.92rem; line-height: 1.5; }

.form-panel {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  background: #fafcff;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

input, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #f3f6fb;
  margin-bottom: 20px;
  font-size: 0.95rem;
  font-family: inherit;
}

textarea { min-height: 110px; resize: vertical; }

footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (max-width: 800px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.1rem; }
  .cards { grid-template-columns: 1fr; }
  .product, .product.reverse { flex-direction: column; }
  .contact-wrap { grid-template-columns: 1fr; }
}