:root {
  --blue: #1a6fb5;
  --blue-dark: #155a96;
  --blue-light: #e8f1fa;
  --neutral-900: #1a1d21;
  --neutral-700: #3d4148;
  --neutral-500: #6b7280;
  --neutral-300: #d1d5db;
  --neutral-100: #f5f6f7;
  --neutral-50: #fafbfc;
  --white: #ffffff;
  --radius: 12px;
  --max-width: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--neutral-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Header ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-100);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--neutral-900);
}

.logo-icon { width: 36px; height: 36px; }

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--neutral-700);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--neutral-900);
  border-radius: 2px;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover { background: var(--blue-dark); }
.btn:active { transform: scale(0.98); }

.btn-small { padding: 8px 20px; font-size: 0.875rem; }

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}

.btn-outline:hover { background: var(--blue-light); }

.btn-full { width: 100%; text-align: center; }

/* ── Hero ── */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--blue-light) 0%, var(--white) 100%);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

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

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--neutral-500);
  max-width: 580px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Sections ── */
.section { padding: 80px 0; }

.section-alt { background: var(--neutral-50); }

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: var(--neutral-500);
  font-size: 1.05rem;
  margin-bottom: 48px;
}

/* ── Grid / Cards ── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: 0 8px 30px rgba(26,111,181,0.08);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.card-icon svg { width: 100%; height: 100%; }

.card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  color: var(--neutral-500);
  font-size: 0.95rem;
}

/* ── About ── */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-text .section-title { text-align: left; }

.checklist {
  list-style: none;
  margin-top: 20px;
}

.checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--neutral-700);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.stat {
  background: var(--white);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--blue);
}

.stat-label {
  color: var(--neutral-500);
  font-size: 0.9rem;
}

/* ── Contact ── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  max-width: 860px;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-item strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-500);
  margin-bottom: 4px;
}

.info-item a {
  color: var(--blue);
  text-decoration: none;
  font-weight: 500;
}

.info-item a:hover { text-decoration: underline; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  padding: 12px 16px;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--neutral-900);
  background: var(--neutral-50);
  transition: border-color 0.2s, background 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: var(--white);
}

.contact-form textarea { resize: vertical; }

.form-status {
  font-size: 0.9rem;
  text-align: center;
  margin-top: 4px;
}

.form-status.success { color: #1a8a3a; }
.form-status.error { color: #c0392b; }

/* ── Footer ── */
.footer {
  background: var(--neutral-900);
  color: var(--neutral-300);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer .logo-text { color: var(--white); }
.footer p { font-size: 0.875rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .header .btn-small { display: none; }
  .menu-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--neutral-100);
  }

  .about-wrap { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-stats { flex-direction: row; }
  .stat { flex: 1; }
}