/* ============================================================
   Open Technica — Brand stylesheet
   Primary: #003087 (navy)   Accent: #0099cc (teal)
   ============================================================ */

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

:root {
  --navy:    #003087;
  --teal:    #0099cc;
  --teal-dk: #007aaa;
  --white:   #ffffff;
  --off-white: #f5f8fc;
  --gray-light: #e8eef4;
  --gray:    #6b7a8d;
  --text:    #1a2332;
  --radius:  6px;
  --shadow:  0 2px 16px rgba(0,48,135,0.10);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
}

/* ── Layout ── */
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ── Navigation ── */
header {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  height: 70px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s;
  letter-spacing: 0.02em;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255,255,255,0.12);
  color: var(--white);
}

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #00509e 60%, var(--teal) 100%);
  color: var(--white);
  padding: 80px 0 72px;
  text-align: center;
}

.hero-logo {
  height: 90px;
  width: auto;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 32px;
  opacity: 0.9;
}

.btn {
  display: inline-block;
  background: var(--teal);
  color: var(--white);
  text-decoration: none;
  padding: 13px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.97rem;
  letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: var(--teal-dk);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.7);
  margin-left: 12px;
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}

/* ── Section shared ── */
section { padding: 72px 0; }

.section-alt { background: var(--off-white); }

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-lead {
  font-size: 1.08rem;
  color: var(--gray);
  max-width: 640px;
  margin-bottom: 52px;
}

/* ── About cards ── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.about-card {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.about-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0,48,135,0.14);
}

.about-card .icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
  display: block;
}

.about-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.about-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ── Services list ── */
.services-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.service-item {
  background: var(--white);
  border-left: 4px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 32px 36px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s, transform 0.2s;
}

.service-item:hover {
  border-color: var(--navy);
  transform: translateX(4px);
}

.service-item h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.service-item p {
  color: var(--gray);
  font-size: 0.97rem;
  max-width: 760px;
}

/* ── CTA band ── */
.cta {
  background: linear-gradient(120deg, var(--navy), #00509e);
  color: var(--white);
  text-align: center;
  padding: 64px 0;
}

.cta h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta p {
  opacity: 0.88;
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta a { color: var(--white); }

/* ── Footer ── */
footer {
  background: #0d1a2b;
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.875rem;
}

footer a {
  color: var(--teal);
  text-decoration: none;
}

footer a:hover { text-decoration: underline; }

/* ── Page header (inner pages) ── */
.page-header {
  background: linear-gradient(135deg, var(--navy), #00509e 70%, var(--teal) 100%);
  color: var(--white);
  padding: 56px 0 48px;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 10px;
}

.page-header p {
  opacity: 0.88;
  font-size: 1.05rem;
  max-width: 560px;
}

/* ── Breadcrumb ── */
.breadcrumb {
  font-size: 0.85rem;
  margin-bottom: 16px;
  opacity: 0.7;
}

.breadcrumb a { color: var(--white); text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 640px) {
  nav { height: auto; padding: 12px 0; flex-wrap: wrap; gap: 8px; }
  .nav-logo img { height: 54px; }
  .nav-links { gap: 4px; }
  .nav-links a { padding: 6px 10px; font-size: 0.88rem; }
  .hero { padding: 52px 0 48px; }
  .hero-logo { height: 64px; }
  section { padding: 48px 0; }
  .service-item { padding: 24px 20px; }
  .btn-outline { margin-left: 0; margin-top: 10px; }
}