:root {
  --teal: #00b4a0;
  --teal-dark: #008f7f;
  --navy: #0a1628;
  --navy-light: #1a2d4a;
  --white: #ffffff;
  --gray-50: #f7f9fc;
  --gray-100: #eef2f7;
  --gray-300: #c5cdd8;
  --gray-600: #5a6578;
  --shadow: 0 4px 24px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 12px 48px rgba(10, 22, 40, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--navy);
  line-height: 1.6;
  background: var(--white);
}

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--teal);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 0 0 8px 8px;
  z-index: 200;
}

.skip-link:focus {
  top: 0;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4%;
  max-width: 1120px;
  margin-inline: auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--gray-300);
  border-radius: 8px;
  padding: 0.4rem 0.75rem;
  font-size: 0.875rem;
  cursor: pointer;
  color: var(--navy);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-list a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--teal);
  color: var(--white) !important;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--teal-dark);
  transform: translateY(-1px);
}

/* Hero - Block 1 */
.hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, #0d3d4a 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(0, 180, 160, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.hero-badge {
  display: inline-block;
  background: rgba(0, 180, 160, 0.2);
  border: 1px solid rgba(0, 180, 160, 0.4);
  color: #7ee8dc;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--teal-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 180, 160, 0.35);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  backdrop-filter: blur(8px);
}

.hero-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.5rem;
}

.hero-stat {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--teal);
}

.hero-stat-label {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.25rem;
}

/* Section common */
.section {
  padding: 5rem 0;
}

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-block;
  color: var(--teal);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--gray-600);
  font-size: 1.0625rem;
}

/* Services - Block 2 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--gray-100);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--gray-600);
  font-size: 0.9375rem;
}

/* Why Us - Block 3 */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.why-item {
  text-align: center;
  padding: 2rem 1.5rem;
}

.why-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.why-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.why-item p {
  color: var(--gray-600);
  font-size: 0.9375rem;
}

.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--gray-100);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gray-600);
  font-size: 0.9375rem;
  font-weight: 500;
}

.trust-icon {
  width: 40px;
  height: 40px;
  background: var(--gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

/* Contact - Block 4 */
.contact-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.contact-info > p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2rem;
  font-size: 1.0625rem;
}

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-details .icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 180, 160, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.125rem;
}

.contact-details strong {
  display: block;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0.15rem;
}

.contact-details a {
  color: var(--white);
  transition: color 0.2s;
}

.contact-details a:hover {
  color: #7ee8dc;
}

.contact-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
}

.contact-card h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.contact-card p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.75rem;
  font-size: 0.9375rem;
}

.contact-card .btn-primary {
  width: 100%;
  font-size: 1.0625rem;
  padding: 1rem 2rem;
}

/* Footer */
.site-footer {
  background: #060d18;
  color: rgba(255, 255, 255, 0.5);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-inner,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--white);
    padding: 1rem 4%;
    gap: 0;
    border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow);
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-cta {
    text-align: center;
    margin-top: 0.5rem;
  }

  .hero {
    padding-top: 6.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}