:root {
  --primary: #34858a;
  --primary-dark: #2a6a6e;
  --primary-light: #5fb8bc;
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --bg-light: #f4fafa;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  color: var(--text-main);
  background-color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  scroll-padding-top: 80px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #f3f4f6;
  height: 80px;
  display: flex;
  align-items: center;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

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

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

.header-logo-img {
  height: 50px;
  width: auto;
  display: block;
  transition: transform 0.3s ease;
}

.logo:hover .header-logo-img {
  transform: scale(1.05);
}

.footer-logo-img {
  height: 60px;
  width: auto;
  display: block;
  #filter: brightness(0) invert(1);
  object-fit: contain;
  margin-bottom: 0.5rem;
}

.footer-slogan {
  color: #9ca3af;
  font-size: 0.9rem;
  max-width: 300px;
  line-height: 1.5;
}

.desktop-nav {
  display: flex;
  gap: 2rem;
}

@media (max-width: 1024px) {
  .desktop-nav {
    display: none;
  }
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

/* Hero Slider */
.hero {
  position: relative;
  height: 85vh;
  min-height: 600px;
  background: #111827;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  display: flex;
  align-items: center;
}

.slide.active {
  opacity: 1;
  z-index: 5;
}

.slide-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-cover: cover;
  z-index: -1;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
  z-index: 0;
}

.slide-content {
  position: relative;
  z-index: 10;
  color: white;
  max-width: 800px;
}

.tag {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(26, 86, 219, 0.2);
  border: 1px solid rgba(26, 86, 219, 0.3);
  border-radius: 9999px;
  color: var(--primary-light);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 4.5rem;
  }
}

.highlight {
  color: var(--primary-light);
}

.hero p {
  font-size: 1.25rem;
  color: #e5e7eb;
  margin-bottom: 2.5rem;
  max-width: 36rem;
}

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 10px 15px -3px rgba(26, 86, 219, 0.2);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Slider Pagination */
.slider-controls {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 20;
}

.slider-dot-group {
  display: flex;
  gap: 0.5rem;
}

.slider-dot {
  width: 3rem;
  height: 0.375rem;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition);
}

.slider-dot.active {
  background: var(--primary);
  width: 4rem;
}

.slider-arrow {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
}

.slider-arrow:hover {
  background: #fff;
  color: #000;
}

/* Sections */
section {
  padding: 6rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--primary);
}

.section-title p {
  color: var(--text-muted);
}

/* Grid Layouts */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.card {
  padding: 2rem;
  border-radius: 1.5rem;
  background: var(--bg-light);
  border: 1px solid #f3f4f6;
  transition: var(--transition);
}

.card:hover {
  background: white;
  transform: translateY(-10px);
  box-shadow: 0 25px 50px -12px rgba(26, 86, 219, 0.05);
}

.card-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: rgba(26, 86, 219, 0.1);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.card:hover .card-icon {
  background: var(--primary);
  color: white;
}

.filter-btn {
  background: var(--bg-light);
  color: var(--text-muted);
}

.filter-btn:hover {
  background: #e2f2f3;
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(52, 133, 138, 0.2);
}

/* Gallery */
.gallery-wrapper {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding: 0 1.5rem 3rem;
  scrollbar-width: none;
}

.gallery-wrapper::-webkit-scrollbar {
  display: none;
}

.gallery-item {
  min-width: 320px;
  height: 450px;
  border-radius: 1.5rem;
  position: relative;
  overflow: hidden;
  background: #f3f4f6;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.2), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  cursor: pointer;
  z-index: 1001;
  color: var(--primary);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, rgba(244, 250, 250, 0.98) 0%, rgba(226, 242, 243, 0.98) 100%);
  backdrop-filter: blur(15px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 8rem 2rem 4rem;
  gap: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(-20px);
  overflow-y: auto;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu .nav-link {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.mobile-menu .nav-link:after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--primary);
  transition: var(--transition);
}

.mobile-menu .nav-link:hover:after,
.mobile-menu .nav-link.active:after {
  width: 100%;
}

.mobile-menu .nav-link.active {
  color: var(--primary);
}

.mobile-menu-footer {
  margin-top: 3rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

@media (max-width: 1024px) {
  .mobile-menu-btn {
    display: block;
  }
}

.contact-cta {
  background: var(--primary);
  color: white;
  text-align: center;
  border-radius: 2rem;
  margin: 0 1.5rem 4rem;
  padding: 4rem 1.5rem;
}

.contact-cta h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

footer {
  background: #111827;
  color: #9ca3af;
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
}

.footer-logo {
  margin-bottom: 1.5rem;
}