:root {
  --navy: #1c2549;
  --navy-light: #314280;
  --teal: #0ea5a3;
  --teal-dark: #0b7f7d;
  --ice: #f4f8fa;
  --gray: #5b6b76;
  --border: #e2e8ec;
  --radius: 10px;
  --max-width: 1120px;
}

* { 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: #fff;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
}

.logo span { color: var(--teal-dark); }

.logo-img {
  height: 46px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy-light);
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--teal-dark); }

.nav-cta {
  background: var(--teal-dark);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
}

.nav-cta:hover { background: #086361; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--navy);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: #fff;
  padding: 90px 0 80px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--teal);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.1rem;
  color: #c7d3dc;
  max-width: 520px;
  margin-bottom: 28px;
}

.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--teal-dark);
  color: #fff;
}
.btn-primary:hover { background: #086361; }

.btn-outline {
  border-color: rgba(255,255,255,0.35);
  color: #fff;
}
.btn-outline:hover { border-color: #fff; }

.hero-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 28px;
}

.hero-card ul li {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 0.95rem;
  color: #dbe4ea;
}
.hero-card ul li:last-child { border-bottom: none; }
.hero-card ul li::before {
  content: "✓";
  color: var(--teal);
  font-weight: 700;
}

/* Sections */
section { padding: 72px 0; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head .eyebrow { display: block; text-align: center; }

.section-head h2 {
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-head p { color: var(--gray); }

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

.cert-grid { grid-template-columns: repeat(4, 1fr); }

.cert-card {
  position: relative;
  padding-left: 24px;
}
.cert-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--teal-dark);
  border-radius: 4px 0 0 4px;
}
.cert-card h3 { font-size: 1rem; }
.accent-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--teal-dark);
  background: rgba(14,165,163,0.1);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
}

@media (max-width: 860px) {
  .grid.cert-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Cards grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow 0.15s, transform 0.15s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(11,30,51,0.08);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(14,165,163,0.12);
  color: var(--teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card p { color: var(--gray); font-size: 0.95rem; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stats .stat-num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--teal-dark);
}
.stats .stat-label { color: var(--gray); font-size: 0.9rem; margin-top: 4px; }

/* Process */
.process-list { display: flex; flex-direction: column; gap: 0; }
.process-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.process-item:last-child { border-bottom: none; }
.process-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--teal);
}
.process-item h3 { margin-bottom: 6px; font-size: 1.05rem; }
.process-item p { color: var(--gray); font-size: 0.95rem; }

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: #fff;
  text-align: center;
}
.cta-band h2 { font-size: 1.9rem; margin-bottom: 12px; }
.cta-band p { color: #c7d3dc; margin-bottom: 26px; }

/* Footer */
footer {
  background: var(--navy);
  color: #aebbc4;
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-grid h4 { color: #fff; font-size: 0.9rem; margin-bottom: 14px; }
.footer-grid li { margin-bottom: 8px; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--teal); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Page header (inner pages) */
.page-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.page-header h1 { font-size: 2.2rem; margin-bottom: 10px; }
.page-header p { color: #c7d3dc; max-width: 600px; margin: 0 auto; }

/* About page */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-grid h2 { font-size: 1.6rem; margin-bottom: 16px; }
.about-grid p { color: var(--gray); margin-bottom: 16px; }

.skills-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.skill-pill {
  background: var(--ice);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--navy-light);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-info-item .card-icon { flex-shrink: 0; margin-bottom: 0; }
.contact-info-item h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-info-item p { color: var(--gray); font-size: 0.95rem; }

form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; display: block; }
input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--teal);
}
textarea { resize: vertical; min-height: 120px; }

.form-status {
  font-size: 0.9rem;
  padding: 10px 14px;
  border-radius: 6px;
  display: none;
}
.form-status.success {
  display: block;
  background: rgba(14,165,163,0.1);
  color: var(--teal-dark);
}

/* Responsive */
@media (max-width: 860px) {
  .nav-links { position: fixed; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px 24px; border-bottom: 1px solid var(--border); display: none; gap: 18px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero .container { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.1rem; }
}