:root {
  --navy: #0F172A;
  --blue: #2563EB;
  --white: #FFFFFF;
  --gray-bg: #F8FAFC;
  --gray-text: #475569;
  --border: #E2E8F0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
}

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

h1, h2, h3 { line-height: 1.2; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 10;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  text-decoration: none;
}
.site-header nav a {
  color: var(--gray-text);
  text-decoration: none;
  margin-left: 24px;
  font-size: 0.95rem;
}
.site-header nav a:hover { color: var(--blue); }

/* Hero */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 100px 0;
  text-align: center;
}
.hero .eyebrow {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}
.hero .subheadline {
  max-width: 640px;
  margin: 0 auto 32px;
  color: #CBD5E1;
  font-size: 1.1rem;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: #1D4ED8; }
.btn-secondary { background: transparent; color: var(--white); border-color: var(--white); }
.btn-secondary:hover { background: rgba(255,255,255,0.1); }

/* Generic sections */
section { padding: 80px 0; }
section h2 { font-size: 2rem; margin-bottom: 12px; text-align: center; }
.section-subheading {
  text-align: center;
  color: var(--gray-text);
  max-width: 600px;
  margin: 0 auto 48px;
}
.about { background: var(--gray-bg); }
.about h2 { margin-bottom: 24px; }
.about p { max-width: 760px; margin: 0 auto; color: var(--gray-text); font-size: 1.05rem; }

/* Grids / cards */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  background: var(--white);
  min-width: 0;
}
.card h3 { margin-bottom: 12px; font-size: 1.15rem; }
.card p { color: var(--gray-text); font-size: 0.95rem; }

.portfolio { background: var(--gray-bg); }
.product-card { padding: 20px; }
.product-image {
  width: 100%;
  max-width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 16px;
  display: block;
}
.product-image.placeholder {
  background: #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94A3B8;
  font-size: 0.85rem;
}
.category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--blue);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
  margin-top: 32px;
}
.contact-details p { margin-bottom: 16px; color: var(--gray-text); }
.contact-details a { color: var(--navy); text-decoration: none; font-weight: 600; }
.contact-details a:hover { color: var(--blue); }

.contact-form { display: flex; flex-direction: column; }
.contact-form label { font-size: 0.9rem; font-weight: 600; margin: 12px 0 6px; }
.contact-form input,
.contact-form textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}
.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: var(--blue); }
.contact-form button { margin-top: 20px; align-self: flex-start; }
.form-note { margin-top: 12px; font-size: 0.8rem; color: var(--gray-text); }

/* Footer */
.site-footer {
  background: var(--navy);
  color: #94A3B8;
  text-align: center;
  padding: 32px 0;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 800px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.2rem; }
  .site-header nav a { margin-left: 14px; font-size: 0.85rem; }
}
@media (max-width: 500px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 70px 0; }
}