/* EcoQuest Theme (scaled) */
:root {
  --eco-green: #22c55e;
  --eco-green-dark: #16a34a;
  --eco-forest: #064e3b;
  --eco-sage: #ecfdf5;
  --eco-text: #0f172a;
  --eco-muted: #6b7280;
  --eco-card: #ffffffcc;
  --eco-border: #e5e7eb;
  --eco-yellow: #f59e0b;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--eco-text);
  background: linear-gradient(180deg, #f7fee7 0%, #f0fdf4 100%);
  min-height: 100vh;
  font-size: 18px; /* scaled up */
}

.container {
  width: 100%;
  max-width: 1360px; /* scaled up */
  margin: 0 auto;
  padding: 0 24px; /* scaled up */
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--eco-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0; /* scaled up */
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand .logo {
  width: 42px; /* scaled up */
  height: 42px;
  border-radius: 10px;
  background-image: url('logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  box-shadow: 0 6px 20px rgba(16,185,129,0.25);
}

.brand .title {
  font-weight: 800;
  font-size: 24px; /* scaled up */
  color: var(--eco-forest);
}

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

a.btn, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px; /* scaled up */
  border-radius: 10px;
  border: 1px solid var(--eco-border);
  background: white;
  color: var(--eco-text);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.2s ease, background 0.2s ease;
}

a.btn:hover, button.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(2, 132, 99, 0.15);
}

.btn.primary { background: linear-gradient(135deg, var(--eco-green), var(--eco-green-dark)); color: white; border: none; }
.btn.ghost { background: transparent; }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; padding: 48px 0 24px 0; }
.hero h1 { font-size: 52px; line-height: 1.1; margin: 0 0 12px 0; color: var(--eco-forest); }
.hero p { margin: 0 0 16px 0; color: var(--eco-muted); font-size: 18px; }
.hero-card { background: var(--eco-card); border: 1px solid var(--eco-border); border-radius: 16px; padding: 20px; box-shadow: 0 8px 24px rgba(16,185,129,0.1); }

.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.kpi { background: white; border: 1px solid var(--eco-border); border-radius: 12px; padding: 14px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: white; border: 1px solid var(--eco-border); border-radius: 16px; padding: 18px; box-shadow: 0 4px 16px rgba(0,0,0,0.06); }

.feature-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(34, 197, 94, 0.15);
  border-color: var(--eco-green);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(34, 197, 94, 0.1), transparent);
  transition: left 0.6s ease;
}

.feature-card:hover::before {
  left: 100%;
}

.feature-icon {
  font-size: 48px;
  text-align: center;
  margin-bottom: 16px;
  display: block;
  animation: bounce 2s infinite;
}

.feature-card:nth-child(1) .feature-icon {
  animation-delay: 0s;
}

.feature-card:nth-child(2) .feature-icon {
  animation-delay: 0.2s;
}

.feature-card:nth-child(3) .feature-icon {
  animation-delay: 0.4s;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

.feature-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.stat {
  background: var(--eco-light);
  color: var(--eco-forest);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--eco-border);
  transition: all 0.3s ease;
}

.feature-card:hover .stat {
  background: var(--eco-green);
  color: white;
  transform: scale(1.05);
}

.special-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  text-align: center;
}

.special-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(34, 197, 94, 0.2);
  border-color: var(--eco-green);
}

.special-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(34, 197, 94, 0.1), transparent);
  transition: left 0.8s ease;
}

.special-card:hover::before {
  left: 100%;
}

.special-icon {
  font-size: 64px;
  text-align: center;
  margin-bottom: 20px;
  display: block;
  animation: pulse 2s infinite;
}

.certificate-card .special-icon {
  animation-delay: 0s;
}

.quiz-card .special-icon {
  animation-delay: 0.5s;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.special-card h3 {
  font-size: 24px;
  margin-bottom: 16px;
  color: var(--eco-forest);
}

.special-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
  justify-content: center;
}

.feature-tag {
  background: var(--eco-light);
  color: var(--eco-forest);
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--eco-border);
  transition: all 0.3s ease;
}

.special-card:hover .feature-tag {
  background: var(--eco-green);
  color: white;
  transform: scale(1.05);
}

.progress-info {
  margin: 20px 0;
  padding: 16px;
  background: var(--eco-light);
  border-radius: 12px;
  border: 1px solid var(--eco-border);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--eco-green), #10b981);
  border-radius: 4px;
  transition: width 0.5s ease;
  width: 0%;
}

.animate-progress {
  animation: progressGlow 2s ease-in-out;
}

@keyframes progressGlow {
  0% {
    box-shadow: 0 0 0 rgba(34, 197, 94, 0.4);
  }
  50% {
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.6);
  }
  100% {
    box-shadow: 0 0 0 rgba(34, 197, 94, 0.4);
  }
}

.progress-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--eco-forest);
}

.quiz-stats {
  display: flex;
  justify-content: space-around;
  margin: 20px 0;
  padding: 16px;
  background: var(--eco-light);
  border-radius: 12px;
  border: 1px solid var(--eco-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-icon {
  font-size: 24px;
  margin-bottom: 4px;
}

.stat-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--eco-forest);
  text-align: center;
}

.special-card:hover .stat-item {
  transform: scale(1.05);
  transition: transform 0.3s ease;
}

/* Dashboard Styles */
.dashboard-card {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.dashboard-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(34, 197, 94, 0.15);
  border-color: var(--eco-green);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--eco-light);
}

.level-badge, .streak-badge, .cert-status {
  background: var(--eco-light);
  color: var(--eco-forest);
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--eco-border);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--eco-light);
  border-radius: 12px;
  border: 1px solid var(--eco-border);
}

.avatar-container {
  position: relative;
}

.user-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid var(--eco-green);
  object-fit: cover;
}

.avatar-ring {
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid var(--eco-green);
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse 2s infinite;
}

.user-info {
  flex: 1;
}

.user-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--eco-forest);
  margin-bottom: 4px;
}

.user-school {
  color: var(--eco-text);
  font-size: 14px;
  margin-bottom: 4px;
}

.user-level {
  background: var(--eco-green);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  display: inline-block;
}

.progress-section {
  margin-bottom: 24px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.progress-label {
  font-weight: 600;
  color: var(--eco-forest);
}

.progress-percentage {
  font-weight: 700;
  color: var(--eco-green);
  font-size: 18px;
}

.progress-bar-container {
  position: relative;
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: #e5e7eb;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--eco-green), #10b981);
  border-radius: 6px;
  transition: width 0.8s ease;
  position: relative;
}

.progress-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--eco-light);
  border: 1px solid var(--eco-border);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.1);
  border-color: var(--eco-green);
}

.stat-icon {
  font-size: 24px;
  margin-bottom: 8px;
  display: block;
}

.stat-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--eco-forest);
}

.stat-label {
  font-size: 12px;
  color: var(--eco-text);
  font-weight: 500;
}

.badge-emoji {
  margin-right: 4px;
}

.action-buttons {
  display: flex;
  gap: 12px;
}

.quiz-btn, .task-btn, .claim-btn, .cert-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-icon {
  font-size: 16px;
}

.btn-text {
  font-size: 14px;
}

.daily-content, .cert-content {
  text-align: center;
  margin-bottom: 20px;
}

.daily-icon, .cert-icon {
  font-size: 48px;
  margin-bottom: 12px;
  display: block;
  animation: bounce 2s infinite;
}

.daily-description, .cert-description {
  color: var(--eco-text);
  margin-bottom: 16px;
}

.daily-reward {
  background: var(--eco-light);
  border: 1px solid var(--eco-border);
  border-radius: 12px;
  padding: 12px;
  display: inline-block;
}

.reward-amount {
  font-size: 24px;
  font-weight: 700;
  color: var(--eco-green);
  display: block;
}

.reward-text {
  font-size: 12px;
  color: var(--eco-text);
}

.cert-progress {
  margin-top: 16px;
}

.cert-progress-bar {
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.cert-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--eco-green), #10b981);
  border-radius: 4px;
  transition: width 0.5s ease;
}

.cert-progress-text {
  font-size: 12px;
  color: var(--eco-text);
  font-weight: 500;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* Edit Profile Styles */
.user-name-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.edit-avatar-btn, .edit-name-btn {
  background: var(--eco-green);
  color: white;
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0;
  transform: scale(0.8);
}

.avatar-container:hover .edit-avatar-btn,
.user-name-container:hover .edit-name-btn {
  opacity: 1;
  transform: scale(1);
}

.edit-avatar-btn:hover, .edit-name-btn:hover {
  background: var(--eco-forest);
  transform: scale(1.1);
}

.edit-icon {
  font-size: 14px;
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from { transform: translateY(50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 24px 0 24px;
  border-bottom: 1px solid var(--eco-border);
  margin-bottom: 24px;
}

.modal-header h3 {
  margin: 0;
  color: var(--eco-forest);
  font-size: 20px;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--eco-text);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.close-btn:hover {
  background: var(--eco-light);
  color: var(--eco-forest);
}

.modal-body {
  padding: 0 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--eco-forest);
  font-size: 14px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--eco-border);
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: var(--eco-green);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-group input[readonly] {
  background: var(--eco-light);
  color: var(--eco-text);
  cursor: not-allowed;
}

.form-help {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--eco-text);
}

.avatar-upload {
  display: flex;
  justify-content: center;
  margin-top: 16px;
}

.current-avatar {
  position: relative;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 3px solid var(--eco-green);
  transition: all 0.3s ease;
}

.current-avatar:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}

.current-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
}

.current-avatar:hover .avatar-overlay {
  opacity: 1;
}

.upload-text {
  color: white;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
}

.modal-footer {
  display: flex;
  gap: 12px;
  padding: 24px;
  border-top: 1px solid var(--eco-border);
  margin-top: 24px;
}

.modal-footer .btn {
  flex: 1;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* Mobile Responsiveness for Modal */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: 20px;
  }
  
  .modal-header, .modal-body, .modal-footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .current-avatar {
    width: 100px;
    height: 100px;
  }
  
  .modal-footer {
    flex-direction: column;
  }
}

.badge { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 999px; background: #ecfeff; color: #155e75; border: 1px solid #cffafe; font-weight: 600; }

.footer { 
  margin-top: 40px; 
  background: #F0FFF0;
  color: var(--eco-forest);
}

.footer-top {
  background: #F0FFF0;
  padding: 12px 0;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-right: 20px;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(6, 78, 59, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--eco-forest);
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 18px;
  border: 1px solid rgba(6, 78, 59, 0.2);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social-icon:hover {
  background: var(--eco-green);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.footer-main {
  background: #F0FFF0;
  border: 1px solid var(--eco-green);
  border-radius: 16px;
  margin: 20px;
  padding: 30px;
  position: relative;
  box-shadow: 0 8px 24px rgba(6, 78, 59, 0.1);
}

.footer-nav {
  display: flex;
  gap: 30px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--eco-forest);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  padding: 8px 0;
}

.footer-nav a:hover {
  color: var(--eco-green);
}

.footer-copyright {
  text-align: center;
  color: var(--eco-muted);
  font-size: 14px;
}

.eco-button {
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--eco-green), var(--eco-green-dark));
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.eco-button:hover {
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
}

@media (max-width: 768px) {
  .footer-main {
    margin: 10px;
    padding: 20px;
  }
  
  .footer-nav {
    flex-direction: column;
    gap: 15px;
  }
  
  .eco-button {
    position: static;
    transform: none;
    margin: 20px auto 0;
    display: block;
  }
  
  .footer-top {
    justify-content: center;
  }
}

.banner { border-radius: 16px; overflow: hidden; position: relative; min-height: 300px; }
.banner img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(1.1) contrast(1.05); border-radius: 16px; }
.banner .overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(6,78,59,0.55), rgba(16,185,129,0.35)); }
.banner .content { position: absolute; bottom: 18px; left: 18px; right: 18px; color: white; }
.quote { font-size: 20px; font-weight: 600; }
.quote small { display: block; opacity: 0.9; margin-top: 6px; }

.section-title { display: flex; align-items: center; justify-content: space-between; margin: 26px 0 14px 0; }
.section-title h2 { margin: 0; color: var(--eco-forest); }

.locked { opacity: 0.6; filter: grayscale(0.3); }
.notice { padding: 12px 14px; border: 1px dashed var(--eco-green); border-radius: 12px; background: #f0fdf4; }

.userbar { display: flex; align-items: center; gap: 10px; }
.userbar img { width: 36px; height: 36px; border-radius: 50%; border: 2px solid white; }

.progress { height: 12px; border-radius: 999px; background: #e5e7eb; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--eco-green), var(--eco-yellow)); }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 14px; border-bottom: 1px solid var(--eco-border); text-align: left; }
.table tr:hover { background: #f9fafb; }

.form { display: grid; gap: 14px; }
.input { width: 100%; padding: 12px 16px; border: 1px solid var(--eco-border); border-radius: 10px; background: white; }
.helper { font-size: 14px; color: var(--eco-muted); }
.center { display: grid; place-items: center; }

/* Environmental Data Cards */
.eco-data-card {
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.eco-data-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.15);
}

.data-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.eco-data-card h3 {
  color: var(--eco-forest);
  margin: 0 0 8px 0;
  font-size: 18px;
  font-weight: 600;
}

.data-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--eco-green);
  margin: 0 0 8px 0;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.data-description {
  color: var(--eco-muted);
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.4;
}

.data-breakdown {
  background: #f8fafc;
  border-radius: 8px;
  padding: 12px;
  margin-top: 12px;
  border: 1px solid #e2e8f0;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid #e2e8f0;
}

.breakdown-item:last-child {
  border-bottom: none;
}

.breakdown-label {
  font-size: 13px;
  color: var(--eco-muted);
  font-weight: 500;
}

.breakdown-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--eco-forest);
}

.aqi-good {
  color: #22c55e;
}

.aqi-moderate {
  color: #f59e0b;
}

.aqi-unhealthy {
  color: #ef4444;
  font-weight: 700;
}

.aqi-very-unhealthy {
  color: #8b5cf6;
  font-weight: 700;
}

.aqi-hazardous {
  color: #7c2d12;
  font-weight: 700;
}

/* Learning Resources Section */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.resource-card {
  background: white;
  border: 1px solid var(--eco-border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.15);
}

.resource-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--eco-green), var(--eco-green-dark));
}

.resource-icon {
  font-size: 32px;
  margin-bottom: 10px;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.resource-card h3 {
  color: var(--eco-forest);
  margin: 0 0 8px 0;
  font-size: 18px;
  font-weight: 600;
}

.resource-card p {
  color: var(--eco-muted);
  margin: 0 0 12px 0;
  font-size: 13px;
  line-height: 1.3;
}

.lesson-list, .resource-list {
  margin-bottom: 12px;
  flex: 1;
}

.lesson-item, .resource-item {
  display: flex;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid #f1f5f9;
  transition: background 0.2s ease;
}

.lesson-item:last-child, .resource-item:last-child {
  border-bottom: none;
}

.lesson-item:hover, .resource-item:hover {
  background: #f8fafc;
  border-radius: 4px;
  padding-left: 4px;
  padding-right: 4px;
}

.lesson-icon, .resource-bullet {
  font-size: 14px;
  margin-right: 8px;
  min-width: 18px;
  text-align: center;
}

.lesson-text, .resource-text {
  color: var(--eco-text);
  font-size: 13px;
  font-weight: 500;
  flex: 1;
}

.resource-card .btn {
  width: 100%;
  justify-content: center;
  font-weight: 600;
  padding: 10px 14px;
  font-size: 13px;
}

/* Lessons Section Styles */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 28px;
  margin-top: 20px;
}

.lesson-card {
  background: white;
  border: 1px solid var(--eco-border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 6px 20px rgba(16,185,129,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.lesson-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(16,185,129,0.15);
}

.lesson-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--eco-green), var(--eco-green-dark));
}

.lesson-icon {
  font-size: 48px;
  margin-bottom: 20px;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.lesson-card h3 {
  color: var(--eco-forest);
  margin: 0 0 16px 0;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.lesson-card p {
  color: var(--eco-muted);
  margin: 0 0 20px 0;
  font-size: 16px;
  line-height: 1.6;
}

.lesson-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.highlight {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  color: var(--eco-green-dark);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid #bbf7d0;
}

.lesson-card .btn {
  width: 100%;
  justify-content: center;
  font-weight: 600;
  padding: 14px 20px;
  font-size: 16px;
}

/* Video Section Styles */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  margin-top: 20px;
}

.video-card {
  background: white;
  border: 1px solid var(--eco-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.15);
}

.video-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.video-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #f8fafc;
}

.thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.video-card:hover .thumbnail-img {
  transform: scale(1.05);
}

.play-button {
  display: none;
}

.video-card:hover .play-button {
  display: none;
}

.video-info {
  padding: 20px;
}

.video-info h3 {
  color: var(--eco-forest);
  margin: 0 0 12px 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
}

.video-info p {
  color: var(--eco-muted);
  margin: 0 0 12px 0;
  font-size: 14px;
  line-height: 1.5;
}

.video-source {
  font-size: 12px;
  color: var(--eco-green);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* AI Eco Quiz Styles */
.quiz-container {
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
}

.quiz-start-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

.quiz-intro-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(16, 185, 129, 0.1);
  max-width: 600px;
  width: 100%;
  border: 1px solid var(--eco-border);
}

.quiz-icon {
  font-size: 64px;
  margin-bottom: 24px;
  display: block;
}

.quiz-intro-card h1 {
  color: var(--eco-forest);
  font-size: 36px;
  margin: 0 0 16px 0;
  font-weight: 800;
}

.quiz-description {
  color: var(--eco-muted);
  font-size: 18px;
  line-height: 1.6;
  margin: 0 0 32px 0;
}

.quiz-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 32px 0;
}

.feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
}

.feature-icon {
  font-size: 24px;
}

.quiz-stats {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin: 32px 0;
}

.stat {
  text-align: center;
  padding: 16px;
  background: #f0fdf4;
  border-radius: 12px;
  border: 1px solid #bbf7d0;
}

.stat strong {
  display: block;
  font-size: 24px;
  color: var(--eco-green);
  margin-bottom: 4px;
}

.btn.large {
  padding: 16px 32px;
  font-size: 18px;
  font-weight: 600;
  border-radius: 12px;
}

.quiz-question-screen {
  max-width: 1000px;
  margin: 0 auto;
}

.quiz-progress {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--eco-border);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: #e5e7eb;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--eco-green), var(--eco-green-dark));
  border-radius: 6px;
  transition: width 0.3s ease;
  width: 0%;
}

.progress-text {
  text-align: center;
  font-weight: 600;
  color: var(--eco-forest);
  font-size: 16px;
}

.quiz-question-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.1);
  border: 1px solid var(--eco-border);
}

.question-header {
  text-align: center;
  margin-bottom: 32px;
}

.question-header h2 {
  color: var(--eco-forest);
  font-size: 28px;
  margin: 0 0 12px 0;
  line-height: 1.3;
  font-weight: 700;
}

.question-category {
  display: inline-block;
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  color: var(--eco-green-dark);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid #bbf7d0;
}

.options-container {
  margin: 32px 0;
}

.option-item {
  margin-bottom: 16px;
}

.option-label {
  display: flex;
  align-items: center;
  padding: 20px;
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 16px;
  font-weight: 500;
}

.option-label:hover {
  background: #f0fdf4;
  border-color: var(--eco-green);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.option-item input[type="radio"] {
  display: none;
}

.option-item input[type="radio"]:checked + .option-label {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  border-color: var(--eco-green);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.option-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--eco-green);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  margin-right: 16px;
  font-size: 14px;
}

.option-text {
  flex: 1;
  color: var(--eco-text);
}

.option-item.correct-answer .option-label {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  border-color: #22c55e;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.option-item.wrong-answer .option-label {
  background: linear-gradient(135deg, #fef2f2, #fecaca);
  border-color: #ef4444;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.quiz-feedback {
  background: #f8fafc;
  border-radius: 16px;
  padding: 24px;
  margin: 24px 0;
  border: 1px solid #e2e8f0;
}

.feedback-content {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feedback-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  flex-shrink: 0;
}

.feedback-icon.correct {
  background: #dcfce7;
  color: #22c55e;
}

.feedback-icon.incorrect {
  background: #fef2f2;
  color: #ef4444;
}

.feedback-text {
  flex: 1;
}

.feedback-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px 0;
}

.feedback-title.correct {
  color: #22c55e;
}

.feedback-title.incorrect {
  color: #ef4444;
}

.feedback-explanation {
  color: var(--eco-muted);
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
}

.quiz-controls {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

.quiz-score-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--eco-border);
}

.quiz-score-card h3 {
  color: var(--eco-forest);
  margin: 0 0 20px 0;
  text-align: center;
  font-size: 20px;
}

.score-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.score-stat {
  text-align: center;
  padding: 16px;
  background: #f8fafc;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
}

.score-stat strong {
  display: block;
  font-size: 24px;
  color: var(--eco-green);
  margin-bottom: 4px;
}

.quiz-results-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
}

.results-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(16, 185, 129, 0.1);
  max-width: 600px;
  width: 100%;
  border: 1px solid var(--eco-border);
}

.results-header {
  margin-bottom: 32px;
}

.results-icon {
  font-size: 64px;
  margin-bottom: 16px;
  display: block;
}

.results-card h1 {
  color: var(--eco-forest);
  font-size: 32px;
  margin: 0 0 8px 0;
  font-weight: 800;
}

.results-subtitle {
  color: var(--eco-muted);
  font-size: 16px;
  margin: 0;
}

.results-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}

.result-stat {
  padding: 20px;
  background: #f8fafc;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--eco-green);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--eco-muted);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.results-message {
  background: #f0fdf4;
  border-radius: 16px;
  padding: 24px;
  margin: 32px 0;
  border: 1px solid #bbf7d0;
}

.results-message h3 {
  color: var(--eco-forest);
  margin: 0 0 8px 0;
  font-size: 20px;
}

.results-message p {
  color: var(--eco-muted);
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
}

.results-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

@media (max-width: 900px) { 
  .hero { grid-template-columns: 1fr; } 
  .grid { grid-template-columns: 1fr; } 
  .data-icon { font-size: 40px; }
  .data-value { font-size: 28px; }
  .video-grid { grid-template-columns: 1fr; }
  .video-thumbnail { height: 180px; }
  .play-button { display: none; }
  .resources-grid { grid-template-columns: 1fr; }
  .resource-card { padding: 18px; }
  .resource-icon { font-size: 28px; }
  .resource-card h3 { font-size: 16px; }
  .lessons-grid { grid-template-columns: 1fr; }
  .lesson-card { padding: 24px; }
  .lesson-icon { font-size: 40px; }
  .lesson-card h3 { font-size: 20px; }
  
  .feature-card {
    padding: 20px;
  }
  
  .feature-icon {
    font-size: 36px;
  }
  
  .feature-stats {
    flex-direction: column;
    gap: 6px;
  }
  
  .stat {
    text-align: center;
    padding: 6px 12px;
  }
  
  .special-card {
    padding: 20px;
  }
  
  .special-icon {
    font-size: 48px;
  }
  
  .special-features {
    flex-direction: column;
    gap: 6px;
  }
  
  .quiz-stats {
    flex-direction: column;
    gap: 12px;
  }
  
  .stat-item {
    flex-direction: row;
    justify-content: center;
    gap: 8px;
  }
  
  .user-profile {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .action-buttons {
    flex-direction: column;
  }
  
  .card-header {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  
  .daily-content, .cert-content {
    padding: 16px;
  }
  
  .daily-icon, .cert-icon {
    font-size: 36px;
  }
  
  /* Quiz Mobile Styles */
  .quiz-container { padding: 12px; }
  .quiz-intro-card { padding: 32px 24px; }
  .quiz-intro-card h1 { font-size: 28px; }
  .quiz-features { grid-template-columns: 1fr; }
  .quiz-stats { flex-direction: column; gap: 16px; }
  .quiz-question-card { padding: 24px; }
  .question-header h2 { font-size: 24px; }
  .option-label { padding: 16px; font-size: 14px; }
  .quiz-controls { flex-direction: column; }
  .score-stats { grid-template-columns: 1fr; }
  .results-stats { grid-template-columns: 1fr; }
  .results-actions { flex-direction: column; }
  .results-card { padding: 32px 24px; }
}

/* Special AI Eco Quiz Styles */
.special-quiz-container {
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  display: flex;
  justify-content: center;
  align-items: center;
}

.topic-selection-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
}

.topic-selection-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(245, 158, 11, 0.1);
  max-width: 900px;
  width: 100%;
  border: 1px solid var(--eco-border);
  margin: 0 auto;
}

.special-quiz-icon {
  font-size: 64px;
  margin-bottom: 24px;
  display: block;
}

.topic-selection-card h1 {
  color: var(--eco-forest);
  font-size: 36px;
  margin: 0 0 16px 0;
  font-weight: 800;
}

.special-quiz-description {
  color: var(--eco-muted);
  font-size: 18px;
  line-height: 1.6;
  margin: 0 0 32px 0;
}

.topic-selection-section {
  margin: 32px 0;
  text-align: left;
}

.topic-selection-section h3 {
  color: var(--eco-forest);
  margin: 0 0 20px 0;
  text-align: center;
  font-size: 24px;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.topic-card {
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.15);
  border-color: #f59e0b;
}

.topic-card.selected {
  border-color: #f59e0b;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.2);
}

.topic-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px auto;
  transition: all 0.3s ease;
}

.topic-card:hover .topic-icon {
  transform: scale(1.1);
}

.topic-card h4 {
  color: var(--eco-forest);
  margin: 0 0 12px 0;
  font-size: 18px;
  font-weight: 600;
}

.topic-card p {
  color: var(--eco-muted);
  margin: 0 0 20px 0;
  font-size: 14px;
  line-height: 1.5;
}

.topic-checkbox {
  position: absolute;
  top: 16px;
  right: 16px;
}

.topic-checkbox input[type="checkbox"] {
  display: none;
}

.topic-checkbox label {
  display: inline-block;
  padding: 8px 16px;
  background: #e2e8f0;
  color: var(--eco-muted);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.topic-checkbox input[type="checkbox"]:checked + label {
  background: #f59e0b;
  color: white;
}

.special-quiz-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 32px 0;
}

.special-quiz-question-screen {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.special-quiz-progress {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--eco-border);
}

.special-quiz-question-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.1);
  border: 1px solid var(--eco-border);
}

.special-quiz-score-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  border: 1px solid var(--eco-border);
}

.special-quiz-results-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
}


.special-quiz-controls {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

.special-quiz-feedback {
  background: #f8fafc;
  border-radius: 16px;
  padding: 24px;
  margin: 24px 0;
  border: 1px solid #e2e8f0;
}

@media (max-width: 900px) {
  .special-quiz-container { padding: 12px; }
  .topic-selection-card { padding: 32px 24px; }
  .topic-selection-card h1 { font-size: 28px; }
  .topics-grid { grid-template-columns: 1fr; }
  .special-quiz-features { grid-template-columns: 1fr; }
  .special-quiz-question-card { padding: 24px; }
  .special-quiz-controls { flex-direction: column; }
}