/* Global Styles & Variables */
:root {
  --primary-color: #10b981;     /* Emerald green */
  --primary-dark: #047857;      /* Forest green */
  --primary-light: #34d399;     /* Mint green */
  --bg-dark: #0b1511;           /* Deep dark slate forest */
  --bg-card: rgba(16, 28, 23, 0.7); /* Translucent dark-green card */
  --bg-input: rgba(30, 48, 40, 0.5);
  --text-light: #f3f4f6;
  --text-gray: #9ca3af;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #10b981;
  --font-main: 'Outfit', sans-serif;
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --glass-border: 1px solid rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(4, 120, 87, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: rgba(11, 21, 17, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: var(--glass-border);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
  color: var(--primary-color);
  filter: drop-shadow(0 0 8px var(--primary-color));
}

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

.logo-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-subtitle {
  font-size: 10px;
  color: var(--text-gray);
  letter-spacing: 0.5px;
  font-weight: 500;
}

.nav-menu {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link:hover, .nav-link.active {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--primary-light);
}

.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

/* Sections Control */
.section {
  display: none;
  padding: 120px 20px 60px;
  min-height: calc(100vh - 80px);
}

.section.active {
  display: block;
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Home Section & Slider */
.slider-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: 480px;
  margin: 0 auto 50px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  border: var(--glass-border);
}

.slider-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  display: flex;
  align-items: center;
  padding: 0 80px;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

.slide-content {
  max-width: 600px;
  transform: translateY(30px);
  opacity: 0;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.8s ease;
}

.slide.active .slide-content {
  transform: translateY(0);
  opacity: 1;
}

.slide-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(16, 185, 129, 0.25);
  color: var(--primary-light);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.slide h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff, #d1d5db);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide p {
  font-size: 16px;
  color: var(--text-gray);
  margin-bottom: 30px;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(11, 21, 17, 0.7);
  border: var(--glass-border);
  color: white;
  font-size: 18px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.slider-btn:hover {
  background-color: var(--primary-color);
  box-shadow: 0 0 15px var(--primary-color);
}

.prev-btn { left: 20px; }
.next-btn { right: 20px; }

.slider-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  background-color: var(--primary-color);
  width: 28px;
  border-radius: 5px;
}

/* Info Cards Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.info-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--border-radius);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
  transform: scaleX(0);
  transition: var(--transition);
}

.info-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--box-shadow);
  border-color: rgba(16, 185, 129, 0.3);
}

.info-card:hover::before {
  transform: scaleX(1);
}

.info-icon {
  font-size: 36px;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.info-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.info-card p {
  color: var(--text-gray);
  font-size: 14px;
}

/* About / Mission Section */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 10px;
}

.subtitle {
  color: var(--primary-light);
  font-size: 15px;
  font-weight: 500;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.eco-list {
  list-style: none;
  margin-top: 20px;
}

.eco-list li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

.text-green {
  color: var(--primary-color);
}

.about-visual {
  display: flex;
  justify-content: center;
}

.visual-card {
  background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(4,120,87,0.2));
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--border-radius);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--box-shadow);
  max-width: 320px;
}

.visual-icon {
  font-size: 50px;
  color: var(--primary-light);
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); filter: drop-shadow(0 0 2px var(--primary-color)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 10px var(--primary-color)); }
  100% { transform: scale(1); filter: drop-shadow(0 0 2px var(--primary-color)); }
}

/* Glassmorphic Form Card */
.glass-card {
  background: var(--bg-card);
  border: var(--glass-border);
  border-radius: var(--border-radius);
  padding: 40px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--box-shadow);
}

.form-container {
  max-width: 800px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 25px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: span 2;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.5px;
}

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

.required {
  color: var(--danger);
}

input, select, textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: white;
  font-family: var(--font-main);
  font-size: 14px;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
  background-color: rgba(30, 48, 40, 0.8);
}

/* Style select element dropdown arrow */
select option {
  background-color: var(--bg-dark);
  color: white;
}

.disclaimer-checkbox {
  margin-top: 25px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  color: var(--text-gray);
  cursor: pointer;
}

.disclaimer-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-color);
  margin-top: 2px;
}

.form-actions {
  margin-top: 30px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #0b1511;
}

.btn-primary:hover {
  background-color: var(--primary-light);
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  border: var(--glass-border);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-danger {
  background-color: var(--danger);
  color: white;
}

.btn-danger:hover {
  background-color: var(--danger-hover);
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.5);
}

.btn-large {
  padding: 14px 28px;
  font-size: 15px;
}

.btn-block {
  width: 100%;
}

/* Admin Center & Login */
.max-width-small {
  max-width: 420px;
  margin: 0 auto;
}

.admin-center {
  margin-top: 50px;
}

.admin-login-header {
  text-align: center;
  margin-bottom: 30px;
}

.admin-icon {
  font-size: 40px;
  color: var(--primary-color);
  margin-bottom: 15px;
}

/* Admin Dashboard & Workspace */
.admin-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: var(--glass-border);
}

.admin-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-bottom: 40px;
}

.metric-card {
  background: linear-gradient(135deg, rgba(16, 28, 23, 0.8), rgba(20, 40, 32, 0.8));
  border: var(--glass-border);
  padding: 25px;
  border-radius: var(--border-radius);
  position: relative;
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.metric-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: 5px;
}

.metric-label {
  font-size: 13px;
  color: var(--text-gray);
  font-weight: 500;
}

.metric-bg-icon {
  position: absolute;
  right: 20px;
  bottom: 10px;
  font-size: 70px;
  opacity: 0.05;
  color: white;
}

/* Charts styles */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin-bottom: 40px;
}

.chart-card {
  padding: 25px;
}

.chart-card h4 {
  margin-bottom: 20px;
  font-size: 16px;
  border-left: 3px solid var(--primary-color);
  padding-left: 10px;
}

.canvas-container {
  position: relative;
  height: 280px;
  width: 100%;
}

/* Table styles */
.table-card {
  padding: 30px;
}

.table-header-filters {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 25px;
}

.filters-container {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  flex-grow: 1;
  justify-content: flex-end;
}

.search-box {
  position: relative;
  min-width: 250px;
}

.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-gray);
}

.search-box input {
  padding-left: 38px;
}

.filters-container select {
  width: 180px;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.db-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.db-table th {
  padding: 15px 12px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  text-transform: uppercase;
  color: var(--text-gray);
  font-weight: 600;
}

.db-table td {
  padding: 15px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 14px;
  vertical-align: middle;
}

.db-table tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.actions-cell {
  display: flex;
  gap: 8px;
}

.actions-cell .btn {
  padding: 6px 12px;
  font-size: 12px;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 15px 25px;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  z-index: 2000;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.success { background-color: var(--success); }
.toast.error { background-color: var(--danger); }
.toast.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

/* Modal dialog for editing */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 1500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: var(--glass-border);
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-gray);
  font-size: 28px;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: white;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 15px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: var(--glass-border);
}

/* Footer Section */
.footer {
  background-color: #050a08;
  padding: 30px 20px;
  text-align: center;
  border-top: var(--glass-border);
  font-size: 13px;
  color: var(--text-gray);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* Utility Classes */
.hidden { display: none !important; }

/* Responsive adjustments */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .charts-grid {
    grid-template-columns: 1fr;
  }
  .slide {
    padding: 0 40px;
  }
  .slide h1 {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: #0b1511;
    flex-direction: column;
    padding: 20px;
    gap: 10px;
    border-bottom: var(--glass-border);
    transform: translateY(-150%);
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .admin-metrics-grid {
    grid-template-columns: 1fr;
  }

  .table-header-filters {
    flex-direction: column;
    align-items: stretch;
  }
  .filters-container {
    flex-direction: column;
  }
  .filters-container select, .search-box {
    width: 100%;
  }
  
  .slider-container {
    height: 350px;
  }
  .slide h1 {
    font-size: 26px;
  }
  .slide-tag {
    margin-bottom: 10px;
  }
}

/* Contact Us Styling */
.contact-grid {
  margin-top: 30px;
}
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr !important;
  }
}