:root {
  --navy: #0A2540;
  --navy-light: #123A5E;
  --teal: #0F6E56;
  --teal-light: #1D9E75;
  --teal-bg: #E1F5EE;
  --bg: #F7F9FB;
  --white: #FFFFFF;
  --text-primary: #16232E;
  --text-secondary: #5B6B7A;
  --border: #E3E8EC;
  --shadow: 0 8px 24px rgba(10, 37, 64, 0.08);
  --radius: 14px;
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

h1, h2, h3 { font-weight: 600; color: var(--navy); line-height: 1.25; }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 249, 251, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s ease;
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(10,37,64,0.08); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-img { height: 42px; width: auto; }

.nav ul { display: flex; gap: 32px; }

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 6px 0;
  transition: color .2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--teal);
  transition: width .25s ease;
}
.nav-link:hover, .nav-link.active { color: var(--teal); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 14.5px;
  padding: 12px 22px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-whatsapp {
  background: var(--teal);
  color: var(--white);
  padding: 10px 18px;
  font-size: 14px;
}
.btn-whatsapp:hover { background: var(--teal-light); }

.btn-primary {
  background: var(--teal);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(15, 110, 86, 0.28);
}
.btn-primary:hover { background: var(--teal-light); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 26px;
  color: var(--navy);
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #0D2F4F 60%, var(--navy-light) 100%);
  padding: 90px 0;
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 40px;
}

.hero .badge {
  display: inline-block;
  background: rgba(29, 158, 117, 0.18);
  color: #7FDDBB;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
  letter-spacing: .3px;
}

.hero-content h1 {
  color: var(--white);
  font-size: clamp(32px, 4.5vw, 48px);
  margin-bottom: 20px;
}

.hero-content p {
  color: #AAB8C4;
  font-size: 17px;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual i {
  font-size: 260px;
  color: var(--teal-light);
  opacity: 0.9;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.35));
}

/* ---------- Section title ---------- */
.section-title { text-align: center; max-width: 620px; margin: 0 auto 52px; }
.section-title h2 { font-size: clamp(26px, 3.5vw, 34px); margin-bottom: 12px; }
.section-title p { color: var(--text-secondary); font-size: 16px; }
.section-title.light h2, .section-title.light p { color: var(--white); }
.section-title.light p { color: #D4EDE3; }

section { padding: 90px 0; }

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

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--teal-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-icon i { font-size: 26px; color: var(--teal); }

.service-card h3 { font-size: 18px; margin-bottom: 8px; }
.service-card p { color: var(--text-secondary); font-size: 14.5px; }

/* ---------- About ---------- */
.about { background: var(--white); }

.about-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}

.about-visual {
  background: var(--teal-bg);
  border-radius: var(--radius);
  padding: 60px 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-card { text-align: center; }
.stat-number {
  display: block;
  font-size: 64px;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 10px;
}
.stat-label { font-size: 15px; color: var(--navy); font-weight: 500; }

.about-content h2 { margin-bottom: 18px; }
.about-content p { color: var(--text-secondary); margin-bottom: 16px; font-size: 15.5px; }

.value-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
}
.value-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 14.5px;
  color: var(--navy);
}
.value-list i { color: var(--teal); font-size: 18px; }

/* ---------- Contact ---------- */
.contact { background: var(--teal); }

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

.contact-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: background .2s ease, transform .2s ease;
}
.contact-card:hover { background: rgba(255,255,255,0.16); transform: translateY(-4px); }
.contact-card i { font-size: 30px; color: #7FDDBB; margin-bottom: 14px; }
.contact-card h3 { color: var(--white); font-size: 16px; margin-bottom: 6px; }
.contact-card p { color: #D4EDE3; font-size: 14px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); padding: 64px 0 0; }

.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.8fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo { height: 38px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p { color: #8FA3B3; font-size: 14px; max-width: 300px; }

.footer-contact p {
  color: #AAB8C4;
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  gap: 10px;
}
.footer-contact i { color: var(--teal-light); }

.footer-social span { color: var(--white); font-weight: 500; font-size: 14px; display: block; margin-bottom: 14px; }
.social-icons { display: flex; gap: 12px; }
.social-icons a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  transition: background .2s ease;
}
.social-icons a:hover { background: var(--teal); }

.footer-bottom { padding: 22px 0; text-align: center; }
.footer-bottom p { color: #8FA3B3; font-size: 13px; }

/* ---------- Floating WhatsApp ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  background: var(--teal);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  box-shadow: 0 10px 26px rgba(15, 110, 86, 0.45);
  z-index: 999;
  animation: pulse 2.4s infinite;
}
.whatsapp-float:hover { background: var(--teal-light); }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(15, 110, 86, 0.5), 0 10px 26px rgba(15,110,86,0.45); }
  70% { box-shadow: 0 0 0 14px rgba(15, 110, 86, 0), 0 10px 26px rgba(15,110,86,0.45); }
  100% { box-shadow: 0 0 0 0 rgba(15, 110, 86, 0), 0 10px 26px rgba(15,110,86,0.45); }
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual i { font-size: 160px; }
  .about-inner { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-contact p, .footer-social { justify-content: center; }
  .footer-contact p { justify-content: center; }
  .social-icons { justify-content: center; }
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(10,37,64,0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .nav.open { max-height: 300px; }
  .nav ul { flex-direction: column; padding: 20px 24px; gap: 18px; }
  .btn-whatsapp span { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .value-list { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .whatsapp-float { width: 54px; height: 54px; font-size: 26px; bottom: 18px; right: 18px; }
}

@media (max-width: 480px) {
  .header-actions .btn-whatsapp { padding: 10px 12px; font-size: 0; gap: 0; }
  .header-actions .btn-whatsapp i { font-size: 18px; }
}