/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1A2744;
  background: #F7FAF9;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { font-family: 'DM Serif Display', serif; font-weight: 400; line-height: 1.25; color: #0D1B2A; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.4rem); }

/* ===== SECTION ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 60px; }
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #0D7377;
  background: rgba(13, 115, 119, 0.08);
  border: 1px solid rgba(13, 115, 119, 0.2);
  border-radius: 50px;
  padding: 6px 16px;
  margin-bottom: 16px;
}
.section-title { margin-bottom: 16px; }
.section-desc { color: #4A5568; font-size: 1.05rem; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: #0D7377;
  color: #fff;
  border-color: #0D7377;
}
.btn-primary:hover { background: #095456; border-color: #095456; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(13,115,119,0.35); }
.btn-outline {
  background: transparent;
  color: #0D1B2A;
  border-color: #0D1B2A;
}
.btn-outline:hover { background: #0D1B2A; color: #fff; transform: translateY(-2px); }
.btn-light {
  background: #fff;
  color: #0D1B2A;
  border-color: #fff;
}
.btn-light:hover { background: #f0fdfa; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(247, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13, 27, 42, 0.06);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(13,27,42,0.08); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem;
  color: #0D1B2A;
  font-weight: 400;
}
.logo-icon { color: #0D7377; }
.main-nav ul { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  padding: 8px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  color: #1A2744;
  transition: all 0.2s ease;
}
.main-nav a:hover { background: rgba(13,115,119,0.08); color: #0D7377; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.hamburger, .hamburger::before, .hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: #0D1B2A;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger::before, .hamburger::after { content: ''; position: absolute; }
.hamburger::before { transform: translateY(-7px); }
.hamburger::after { transform: translateY(7px); }
.nav-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .hamburger::after { transform: rotate(-45deg); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #0D1B2A 0%, #1A3A5C 40%, #0D7377 100%);
  padding: 120px 24px 140px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(94, 234, 212, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(13, 115, 119, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(26, 58, 92, 0.3) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5EEAD4;
  background: rgba(94, 234, 212, 0.12);
  border: 1px solid rgba(94, 234, 212, 0.25);
  border-radius: 50px;
  padding: 8px 20px;
  margin-bottom: 28px;
}
.hero-title {
  color: #fff;
  margin-bottom: 24px;
  line-height: 1.2;
}
.hero-title em { color: #5EEAD4; font-style: italic; }
.hero-sub {
  color: rgba(255,255,255,0.8);
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat-num { display: block; font-family: 'DM Serif Display', serif; font-size: 1.8rem; color: #5EEAD4; line-height: 1; }
.stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.65); font-weight: 600; margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.15); }
.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; line-height: 0; }

/* ===== SERVICES ===== */
.services { background: #F7FAF9; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.service-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px 32px;
  border: 1px solid rgba(13,27,42,0.06);
  box-shadow: 0 4px 20px rgba(13,27,42,0.04);
  transition: all 0.3s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(13,27,42,0.1); border-color: rgba(13,115,119,0.2); }
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(13,115,119,0.1), rgba(94,234,212,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0D7377;
  margin-bottom: 20px;
}
.service-card h3 { margin-bottom: 10px; }
.service-card p { color: #4A5568; font-size: 0.95rem; }

/* ===== ABOUT ===== */
.about { background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-images { position: relative; }
.about-img-main { border-radius: 24px; overflow: hidden; box-shadow: 0 16px 48px rgba(13,27,42,0.12); }
.about-img-main img { width: 100%; height: 100%; object-fit: cover; }
.about-img-float {
  position: absolute;
  bottom: -30px;
  right: -30px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(13,27,42,0.15);
  border: 4px solid #fff;
  max-width: 260px;
}
.about-img-float img { width: 100%; height: 100%; object-fit: cover; }
.about-content .section-tag { margin-bottom: 16px; }
.about-content .section-title { margin-bottom: 20px; }
.about-content > p { color: #4A5568; margin-bottom: 16px; }
.about-features { margin: 24px 0 32px; display: flex; flex-direction: column; gap: 14px; }
.about-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: #1A2744;
}
.about-features svg { color: #0D7377; flex-shrink: 0; }

/* ===== GALLERY ===== */
.gallery { background: #F7FAF9; }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-item {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 5/4;
  cursor: pointer;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,27,42,0.7) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay span { color: #fff; font-family: 'DM Serif Display', serif; font-size: 1.2rem; }

/* ===== TESTIMONIALS ===== */
.testimonials { background: #fff; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: #F7FAF9;
  border-radius: 20px;
  padding: 36px 32px;
  border: 1px solid rgba(13,27,42,0.06);
  transition: all 0.3s ease;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(13,27,42,0.08); }
.testimonial-stars { display: flex; gap: 4px; color: #F6AD55; margin-bottom: 20px; }
.testimonial-text { color: #1A2744; font-size: 1rem; line-height: 1.8; margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0D7377, #5EEAD4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 0.95rem; color: #0D1B2A; }
.testimonial-author span { font-size: 0.82rem; color: #4A5568; }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, #0D1B2A 0%, #1A3A5C 50%, #0D7377 100%);
  padding: 80px 0;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-text { flex: 1; min-width: 280px; }
.cta-title { color: #fff; font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
.cta-desc { color: rgba(255,255,255,0.75); font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== CONTACT ===== */
.contact { background: #F7FAF9; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info .section-tag { margin-bottom: 16px; }
.contact-info .section-title { margin-bottom: 16px; }
.contact-info > p { color: #4A5568; margin-bottom: 32px; }
.contact-details { display: flex; flex-direction: column; gap: 24px; margin-bottom: 32px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; }
.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(13,115,119,0.1), rgba(94,234,212,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0D7377;
  flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.85rem; color: #0D1B2A; margin-bottom: 2px; }
.contact-item span, .contact-item a { font-size: 0.95rem; color: #4A5568; }
.contact-item a:hover { color: #0D7377; }
.contact-map { border-radius: 16px; overflow: hidden; }

/* FORM */
.contact-form-wrap {
  background: #fff;
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 8px 40px rgba(13,27,42,0.06);
  border: 1px solid rgba(13,27,42,0.06);
}
.contact-form h3 { font-size: 1.5rem; margin-bottom: 8px; }
.form-note { color: #4A5568; font-size: 0.9rem; margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  color: #0D1B2A;
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid rgba(13,27,42,0.1);
  border-radius: 14px;
  font-family: 'Nunito', sans-serif;
  font-size: 0.95rem;
  color: #1A2744;
  background: #F7FAF9;
  transition: all 0.2s ease;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #0D7377;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(13,115,119,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #A0AEC0; }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding: 16px 20px;
  background: rgba(13,115,119,0.08);
  border: 1px solid rgba(13,115,119,0.2);
  border-radius: 14px;
  color: #0D7377;
  font-size: 0.95rem;
}
.form-success svg { color: #0D7377; flex-shrink: 0; }

/* ===== FOOTER ===== */
.site-footer { background: #0D1B2A; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand p { margin-top: 16px; font-size: 0.9rem; line-height: 1.7; }
.footer-logo { color: #fff; }
.footer-links h4, .footer-contact h4 { color: #fff; font-size: 1rem; margin-bottom: 20px; font-family: 'Nunito', sans-serif; font-weight: 800; }
.footer-links ul, .footer-contact ul { display: flex; flex-direction: column; gap: 12px; }
.footer-links a, .footer-contact a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-links a:hover, .footer-contact a:hover { color: #5EEAD4; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); transition: color 0.2s ease; }
.footer-bottom a:hover { color: #5EEAD4; }

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #0D7377;
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(13,115,119,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all 0.3s ease;
  z-index: 999;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: #095456; transform: translateY(-2px); }

/* ===== REVEAL ANIMATIONS ===== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal.revealed { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 1; transform: none; }

/* ===== MOBILE NAV ===== */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(247,250,249,0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 24px;
    border-bottom: 1px solid rgba(13,27,42,0.08);
    box-shadow: 0 12px 32px rgba(13,27,42,0.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { padding: 14px 16px; border-radius: 12px; width: 100%; }
  .main-nav li:last-child a { margin-top: 8px; text-align: center; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img-float { right: 16px; bottom: -20px; max-width: 200px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { justify-content: center; }
  .hero-stats { gap: 20px; }
  .contact-form-wrap { padding: 28px; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}