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

:root {
  --color-primary: #0f766e;
  --color-primary-dark: #0d5c56;
  --color-accent: #f59e0b;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15, 118, 110, 0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.logo-mark {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.logo-sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

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

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

/* Hero */
.hero {
  background: linear-gradient(135deg, #0f766e 0%, #134e4a 100%);
  color: #fff;
  padding: 5rem 0 6rem;
}

.hero-content {
  max-width: 680px;
}

.hero-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-text {
  font-size: 1.1rem;
  opacity: 0.92;
  margin-bottom: 2rem;
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: #1e293b;
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}

.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

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

.section h2 {
  font-size: 1.85rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.section-intro {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.section-intro a,
.section-cta a {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
}

.section-intro a:hover,
.section-cta a:hover {
  text-decoration: underline;
}

.section-cta {
  margin-top: 2.5rem;
  color: var(--color-text-muted);
}

/* Page header */
.page-header {
  background: linear-gradient(135deg, #0f766e 0%, #134e4a 100%);
  color: #fff;
  padding: 3rem 0;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.page-header-text {
  opacity: 0.9;
  max-width: 560px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-grid p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

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

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Contact */
.contact-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  box-shadow: var(--shadow);
}

.contact-box p {
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.contact-details a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.contact-details a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.footer-short {
  color: #64748b;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    gap: 1.25rem;
  }

  .logo-sub {
    display: none;
  }

  .about-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.5rem 0 4rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}