:root {
  --ocean-blue: #1a5f7a;
  --deep-blue: #003366;
  --sky-blue: #57c5b6;
  --light-blue: #d9f0ff;
  --light-text: #f8f9fa;
  --dark-text: #333333;
  --gray-border: #e0e0e0;
}

body {
  font-family: 'Raleway', sans-serif;
  margin: 0;
  color: var(--dark-text);
  background-color: #f5f7fa;
  line-height: 1.6;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 5%;
  background: rgba(26, 95, 122, 0.95);
  color: var(--light-text);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(5px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: all 0.4s ease;
}

.navbar.scrolled {
  padding: 0.8rem 5%;
  background: rgba(26, 95, 122, 0.98);
}

.logo {
  display: flex;
  align-items: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  gap: 12px;
  height: 55px;
}

.logo-icon {
  width: 55px;
  height: 55px;
}

.logo-text {
  font-size: 1.8rem;
  color: var(--light-text);
}

.hero-section {
  position: relative;
  margin-top: 80px;
  display: flex;
  justify-content: center;
  background: #f0f0f0;
  padding: 20px 0;
}

.map-image {
  max-width: 90%;
  max-height: 65vh;
  height: auto;
  width: auto;
  display: block;
  margin: 0 auto;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  border-radius: 4px;
}

.image-container {
  position: relative;
  display: inline-block;
}

.enlarge-icon {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s;
}

.hero-section:hover .enlarge-icon {
  opacity: 1;
}

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  overflow: auto;
}

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 1200px;
  max-height: 90vh;
  animation: zoom 0.3s;
}

.gallery-modal .modal-content {
  width: auto;
  max-height: 80vh;
}

.modal-caption {
  text-align: center;
  color: #fff;
  padding: 10px 0;
  font-size: 1.2rem;
}

@keyframes zoom {
  from { transform: scale(0.1); }
  to { transform: scale(1); }
}

.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
}

.close:hover {
  color: #bbb;
}

.project-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 5%;
}

.project-content {
  width: 100%;
}

h1, h2, h3, h4 {
  font-family: 'Montserrat', sans-serif;
  color: var(--deep-blue);
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  color: var(--ocean-blue);
}

h2 {
  font-size: 1.8rem;
  margin: 2rem 0 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--sky-blue);
}

h3 {
  font-size: 1.4rem;
  margin: 1.5rem 0 1rem;
}

.lead {
  font-size: 1.2rem;
  color: #555;
  margin-bottom: 2rem;
}

.content-section {
  margin-bottom: 3rem;
}

.highlight-box {
  background-color: var(--light-blue);
  border-left: 4px solid var(--ocean-blue);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}

.method-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.step {
  flex: 1 1 calc(50% - 1rem);
  min-width: 200px;
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: relative;
}

.step-number {
  position: absolute;
  top: -15px;
  left: -15px;
  width: 40px;
  height: 40px;
  background: var(--ocean-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.2rem;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 2rem 0;
}

.gallery-item {
  flex: 1 1 calc(33.333% - 1.5rem);
  min-width: 250px;
  cursor: pointer;
  transition: transform 0.3s;
}

.gallery-item:hover {
  transform: translateY(-5px);
}

.gallery-item img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.gallery-item p {
  text-align: center;
  margin-top: 0.5rem;
  font-weight: 500;
}

.conclusions-list {
  list-style: none;
  padding: 0;
}

.conclusions-list li {
  margin-bottom: 0.8rem;
  padding-left: 1.8rem;
  position: relative;
}

.conclusions-list li i {
  position: absolute;
  left: 0;
  top: 3px;
  color: var(--sky-blue);
}

.summary-box {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.benefit-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--light-blue);
  border-radius: 8px;
}

.benefit-item i {
  font-size: 2rem;
  color: var(--ocean-blue);
  margin-bottom: 1rem;
}

.benefit-item h4 {
  margin: 0.5rem 0;
}