:root {
      --primary-color: #4cafff;
      --secondary-color: #3a9de6;
      --success-color: #4CAF50;
      --danger-color: #f44336;
      --text-color: #333;
  --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      --card-bg: white;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html, body {
      width: 100%;
      height: 100%;
      overflow-x: hidden;
    }

    body {
      margin: 0;
      padding: 0;
      font-family: 'Segoe UI', sans-serif;
      background: var(--background-gradient);
      min-height: 100vh;
      transition: background 1s ease;
      width: 100%;
    }

    /* Weather Background Effects */
    .weather-background {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      pointer-events: none;
    }

    /* Rain animation */
    .rain {
      display: none;
    }

    .rain-drop {
      position: absolute;
      width: 2px;
      height: 15px;
      background: rgba(255, 255, 255, 0.5);
      animation: rain-fall linear infinite;
    }

    @keyframes rain-fall {
      0% { transform: translateY(-100px); }
      100% { transform: translateY(calc(100vh + 100px)); }
    }

    /* Snow animation */
    .snow {
      display: none;
    }

    .snowflake {
      position: absolute;
      color: white;
      font-size: 16px;
      animation: snow-fall linear infinite;
    }

    @keyframes snow-fall {
      0% { transform: translateY(-100px) rotate(0deg); }
      100% { transform: translateY(calc(100vh + 100px)) rotate(360deg); }
    }

    /* Sun rays animation */
    .sunny {
      display: none;
    }

    .sun-ray {
      position: absolute;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, rgba(255,255,255,0) 70%);
      animation: pulse-sun 4s infinite alternate;
    }

    @keyframes pulse-sun {
      0% { opacity: 0.3; }
      100% { opacity: 0.7; }
    }

    .app-container {
      width: 100%;
      max-width: 100%;
      z-index: 10;
    }

    .container {
      background: transparent;
      padding: 0;
      border-radius: 0;
      box-shadow: none;
      text-align: center;
      position: relative;
      margin-bottom: 0;
      width: 100%;
    }

    h1 {
      margin-bottom: 15px !important;
      color: var(--text-color);
      font-size: 1.8rem;
    }

    .search-container {
      display: flex;
      gap: 10px;
      margin-bottom: 15px;
      align-items: center;
    }

    input {
      padding: 10px;
      flex: 1;
      font-size: 14px;
      border-radius: 8px;
      border: 1px solid #ccc;
      min-width: 0;
    }

    button {
      padding: 10px 16px;
      background-color: var(--primary-color);
      color: white;
      border: none;
      border-radius: 6px;
      margin-left: 0;
      cursor: pointer;
      transition: all 0.2s;
      font-size: 14px;
      font-weight: 500;
    }

    button:hover {
      background-color: var(--secondary-color);
    }

    .weather-info {
      margin-top: 15px;
      font-size: 15px;
      color: var(--text-color);
      text-align: left;
      background: #f8f9fa;
      padding: 15px;
      border-radius: 10px;
      border: 1px solid #e9ecef;
    }

    .weather-info img {
      width: 60px;
      margin: 5px 0;
    }

    .flag {
      width: 25px;
      vertical-align: middle;
      margin-left: 6px;
    }

    #mapContainer {
      display: none; /* Show with JS when needed */
      justify-content: center;
      align-items: center;
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(0,0,0,0.3);
      z-index: 1000;
    }

    #map {
      height: 70vh;
      width: 90vw;
      max-width: 800px;
      border-radius: 10px;
      box-shadow: 0 0 20px rgba(0,0,0,0.3);
      background: #fff;
    }

    .map-controls {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 10px;
    }

    .map-btn {
      padding: 8px 16px;
      border-radius: 5px;
      border: none;
      background: #1976d2;
      color: #fff;
      cursor: pointer;
      font-size: 1rem;
    }

    .map-btn.close-btn {
      background: #d32f2f;
    }

    .temp-toggle {
      margin-top: 10px;
      display: flex;
      justify-content: center;
      gap: 10px;
    }

    .temp-toggle button {
      padding: 6px 12px;
      margin: 0;
      font-size: 14px;
    }

    .temp-toggle button.active {
      background-color: #1e88e5;
    }

    .history-container {
      margin-top: 15px;
      background: #f8f9fa;
      border: 1px solid #e9ecef;
      border-radius: 10px;
      padding: 15px;
      margin-bottom: 15px;
    }

    .history-title {
      font-weight: bold;
      margin-bottom: 8px;
    }

    .history-list {
      max-height: 150px;
      overflow-y: auto;
      text-align: left;
      padding: 0 10px;
    }

    .history-item {
      padding: 5px 0;
      border-bottom: 1px solid #f0f0f0;
      cursor: pointer;
      transition: background-color 0.2s;
    }

    .history-item:hover {
      background-color: #f5f5f5;
    }

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

    .clear-history {
      margin-top: 10px;
      background-color: var(--danger-color);
      color: white;
      border: none;
      padding: 6px 12px;
      border-radius: 4px;
      cursor: pointer;
      font-size: 12px;
    }

    .historical-section {
      margin-top: 15px;
      background: #f8f9fa;
      border: 1px solid #e9ecef;
      border-radius: 10px;
      padding: 15px;
      margin-bottom: 15px;
    }

    .historical-title {
      font-weight: bold;
      margin-bottom: 10px;
      color: var(--primary-color);
    }

    .date-range {
      display: flex;
      align-items: center;
      margin-bottom: 15px;
      gap: 10px;
      flex-wrap: wrap;
    }

    .date-range input {
      flex: 1;
      min-width: 120px;
      padding: 8px;
      border: 1px solid #ddd;
      border-radius: 5px;
    }

    .date-range span {
      font-weight: bold;
      color: var(--text-color);
    }

    .date-range input {
      width: 45%;
      padding: 8px;
      font-size: 14px;
    }

    .date-range span {
      font-weight: bold;
    }

    .chart-container {
      position: relative;
      height: 300px;
      margin-top: 15px;
      background: white;
      border-radius: 8px;
      padding: 10px;
    }

    .historical-btn {
      background-color: var(--success-color);
      margin-top: 10px;
    }

    .nav-tabs {
      display: flex;
      justify-content: center;
      margin: 0;
      background-color: rgba(255, 255, 255, 0.9);
      border-radius: 0;
      padding: 15px;
      position: relative;
      z-index: 100;
      width: 100%;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    /* Navigation tabs on home page - transparent style */
    body:has(#home-page.active) .nav-tab {
      color: white;
      font-weight: 500;
    }

    body:has(#home-page.active) .nav-tab.active {
      background-color: rgba(255, 255, 255, 0.2);
      color: white;
      font-weight: bold;
    }

    body:has(#home-page.active) .nav-tab:hover {
      background-color: rgba(255, 255, 255, 0.1);
      color: white;
    }

    .nav-tab {
      padding: 10px 20px;
      background-color: transparent;
      border: none;
      cursor: pointer;
      transition: all 0.3s;
      border-radius: 20px;
      color: var(--text-color);
    }

    .nav-tab.active {
      background-color: var(--primary-color);
      color: white;
      font-weight: bold;
    }

    .page {
      display: none;
    }

    .page.active {
      display: block;
    }

    /* Ensure non-home pages have proper positioning */
    .page:not(#home-page) {
      position: relative;
      z-index: 1;
      background: var(--card-bg);
      min-height: calc(100vh - 70px);
      padding: 15px;
      margin: 0;
      border-radius: 0;
      box-shadow: none;
      width: 100%;
      box-sizing: border-box;
      max-width: 800px;
      margin: 0 auto;
    }

    .weather-animation {
      width: 100px;
      height: 100px;
      margin: 0 auto;
    }

    .forecast-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-top: 15px;
    }

    .forecast-day {
      background: white;
      padding: 15px;
      border-radius: 8px;
      text-align: center;
      border: 1px solid #e9ecef;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .forecast-day:last-child {
      border-bottom: none;
    }

    .forecast-date {
      font-weight: bold;
      width: 30%;
    }

    .forecast-temp {
      width: 30%;
      text-align: right;
    }

    .forecast-icon {
      width: 40px;
      height: 40px;
    }

    /* AI Analysis Styles */
    .ai-analysis-container {
      margin-top: 20px;
      border-top: 1px solid #eee;
      padding-top: 15px;
    }

    .ai-analysis-box {
      background-color: #f9f9f9;
      border-radius: 10px;
      padding: 15px;
      margin-top: 10px;
      text-align: left;
      max-height: 300px;
      overflow-y: auto;
      border-left: 4px solid #4cafff;
    }

    .ai-loading {
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px;
    }

    .ai-loading-dots {
      display: inline-block;
      position: relative;
      width: 80px;
      height: 80px;
    }

    .ai-loading-dots div {
      position: absolute;
      top: 33px;
      width: 13px;
      height: 13px;
      border-radius: 50%;
      background: #4cafff;
      animation-timing-function: cubic-bezier(0, 1, 1, 0);
    }

    .ai-loading-dots div:nth-child(1) {
      left: 8px;
      animation: ai-loading-dots1 0.6s infinite;
    }

    .ai-loading-dots div:nth-child(2) {
      left: 8px;
      animation: ai-loading-dots2 0.6s infinite;
    }

    .ai-loading-dots div:nth-child(3) {
      left: 32px;
      animation: ai-loading-dots2 0.6s infinite;
    }

    .ai-loading-dots div:nth-child(4) {
      left: 56px;
      animation: ai-loading-dots3 0.6s infinite;
    }

    @keyframes ai-loading-dots1 {
      0% { transform: scale(0); }
      100% { transform: scale(1); }
    }

    @keyframes ai-loading-dots2 {
      0% { transform: translate(0, 0); }
      100% { transform: translate(24px, 0); }
    }

    @keyframes ai-loading-dots3 {
      0% { transform: scale(1); }
      100% { transform: scale(0); }
    }

    .ai-error {
      color: var(--danger-color);
      text-align: center;
      padding: 10px;
    }

    .ai-analysis-title {
      font-weight: bold;
      margin-bottom: 10px;
      color: #1e88e5;
    }

    .ai-analysis-content {
      line-height: 1.6;
    }

    .ai-analysis-content p {
      margin-bottom: 10px;
    }

    .ai-analysis-content ul {
      padding-left: 20px;
      margin-bottom: 10px;
    }

    .ai-analysis-content li {
      margin-bottom: 5px;
    }

    /* Enhanced styles for Puter.js AI response */
    .ai-response {
      background: rgba(108, 92, 231, 0.05);
      border-left: 4px solid #6c5ce7;
      padding: 15px;
      border-radius: 8px;
      margin: 10px 0;
    }

    .ai-response h3 {
      color: #6c5ce7;
      margin: 15px 0 10px 0;
      font-size: 1.1em;
      font-weight: 600;
    }

    .ai-response p {
      margin-bottom: 12px;
      color: #444;
    }

    .ai-response strong {
      color: #1e88e5;
      font-weight: 600;
    }

    .generate-analysis-btn {
      background-color: #6c5ce7;
      margin-top: 10px;
    }

    .generate-analysis-btn:hover {
      background-color: #5c4bc9;
    }

    /* Feedback Section Styles */
    .feedback-container {
      margin-top: 20px;
      text-align: left;
      background: #f8f9fa;
      border: 1px solid #e9ecef;
      border-radius: 10px;
      padding: 20px;
      margin-bottom: 15px;
    }

    .feedback-form {
      background: #f9f9f9;
      padding: 20px;
      border-radius: 10px;
      margin: 20px 0;
      border-left: 4px solid #4cafff;
    }

    .form-group {
      margin-bottom: 15px;
    }

    .form-group label {
      display: block;
      margin-bottom: 5px;
      font-weight: 500;
      color: var(--text-color);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 10px;
      border: 1px solid #ddd;
      border-radius: 5px;
      font-size: 14px;
      box-sizing: border-box;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: #4cafff;
      box-shadow: 0 0 5px rgba(76, 175, 255, 0.3);
    }

    .rating-container {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .stars {
      display: flex;
      gap: 2px;
    }

    .star {
      font-size: 24px;
      cursor: pointer;
      transition: all 0.2s;
      filter: grayscale(100%);
    }

    .star:hover,
    .star.active {
      filter: grayscale(0%);
      transform: scale(1.1);
    }

    .form-group input[type="checkbox"] {
      width: auto;
      margin-right: 8px;
    }

    .submit-feedback-btn {
      background-color: #4cafff;
      color: white;
      border: none;
      padding: 12px 24px;
      border-radius: 5px;
      cursor: pointer;
      font-size: 16px;
      width: 100%;
      transition: background-color 0.3s;
      position: relative;
    }

    .submit-feedback-btn:hover {
      background-color: #3a9de6;
    }

    .submit-feedback-btn:disabled {
      background-color: #ccc;
      cursor: not-allowed;
    }

    .btn-loading {
      display: inline-block;
    }

    .feedback-status {
      margin: 15px 0;
      padding: 10px;
      border-radius: 5px;
      display: none;
    }

    .feedback-status.success {
      background-color: #d4edda;
      border: 1px solid #c3e6cb;
      color: #155724;
    }

    .feedback-status.error {
      background-color: #f8d7da;
      border: 1px solid #f5c6cb;
      color: #721c24;
    }

    .feedback-info {
      background: #e8f4f8;
      padding: 15px;
      border-radius: 8px;
      margin-top: 20px;
    }

    .feedback-info h3 {
      margin-top: 0;
      color: #2c5282;
    }

    .feedback-info p {
      margin: 8px 0;
      color: #2d3748;
    }

    /* Home Page Styles - Full Screen */
    .welcome-container {
      min-height: 100vh;
      width: 100vw;
      padding: 20px;
      box-sizing: border-box;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      align-items: center;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      overflow-y: auto;
      z-index: 20;
    }



    .welcome-container h1 {
      font-size: 3rem;
      margin: 20px 0;
      text-align: center;
      text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
      animation: fadeInUp 1s ease-out;
    }

    .welcome-subtitle {
      font-size: 1.2rem;
      margin-bottom: 30px;
      text-align: center;
      opacity: 0.9;
      animation: fadeInUp 1s ease-out 0.2s both;
    }

    .project-info {
      max-width: 1200px;
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 30px;
      margin-top: 80px;
    }

    .info-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 15px;
      padding: 30px;
      text-align: center;
      animation: fadeInUp 1s ease-out 0.4s both;
    }

    .info-card h2 {
      font-size: 2rem;
      margin-bottom: 15px;
      color: #fff;
    }

    .info-card p {
      font-size: 1.1rem;
      line-height: 1.6;
      opacity: 0.9;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin: 20px 0;
    }

    .feature-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 15px;
      padding: 30px;
      text-align: center;
      cursor: pointer;
      transition: all 0.3s ease;
      animation: fadeInUp 1s ease-out 0.6s both;
    }

    .feature-card:hover {
      transform: translateY(-10px);
      background: rgba(255, 255, 255, 0.15);
      box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    }

    .feature-icon {
      font-size: 3rem;
      margin-bottom: 15px;
      display: block;
    }

    .feature-card h3 {
      font-size: 1.4rem;
      margin: 15px 0;
      color: #fff;
    }

    .feature-card p {
      font-size: 1rem;
      line-height: 1.5;
      opacity: 0.9;
      margin-bottom: 20px;
    }

    .feature-link {
      display: inline-block;
      color: #4cafff;
      font-weight: bold;
      font-size: 1rem;
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .feature-card:hover .feature-link {
      color: #66d9ff;
    }

    .tech-stack {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 15px;
      padding: 30px;
      text-align: center;
      animation: fadeInUp 1s ease-out 0.8s both;
    }

    .tech-stack h3 {
      font-size: 1.5rem;
      margin-bottom: 20px;
      color: #fff;
    }

    .tech-badges {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .tech-badge {
      background: rgba(255, 255, 255, 0.2);
      padding: 8px 16px;
      border-radius: 25px;
      font-size: 0.9rem;
      border: 1px solid rgba(255, 255, 255, 0.3);
      transition: all 0.3s ease;
    }

    .tech-badge:hover {
      background: rgba(255, 255, 255, 0.3);
      transform: scale(1.05);
    }

    .quick-start {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 15px;
      padding: 30px;
      animation: fadeInUp 1s ease-out 1s both;
    }

    .quick-start h3 {
      font-size: 1.5rem;
      margin-bottom: 25px;
      text-align: center;
      color: #fff;
    }

    .start-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .step {
      display: flex;
      align-items: center;
      gap: 15px;
      padding: 15px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 10px;
      transition: all 0.3s ease;
    }

    .step:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateX(5px);
    }

    .step-number {
      background: #4cafff;
      color: white;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    .step p {
      margin: 0;
      font-size: 1rem;
      line-height: 1.4;
    }

    .cta-section {
      text-align: center;
      margin: 30px 0;
      animation: fadeInUp 1s ease-out 1.2s both;
    }

    .cta-button {
      background: linear-gradient(45deg, #4cafff, #66d9ff);
      color: white;
      border: none;
      padding: 18px 40px;
      font-size: 1.2rem;
      font-weight: bold;
      border-radius: 30px;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 8px 25px rgba(76, 175, 255, 0.3);
    }

    .cta-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 35px rgba(76, 175, 255, 0.4);
      background: linear-gradient(45deg, #66d9ff, #4cafff);
    }

    /* Animations */
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* Make home page full screen */
    #home-page {
      width: 100vw;
      min-height: 100vh;
      margin: 0;
      padding: 0;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 10;
    }

    /* Navigation always visible except when home page covers it */
    .nav-tabs {
      position: relative;
      z-index: 50;
    }

    /* When home page is active, position nav tabs over it */
    body:has(#home-page.active) .nav-tabs {
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 100;
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(15px);
      border: 1px solid rgba(255, 255, 255, 0.3);
      box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    }

    /* Ensure proper spacing for non-home pages */
    .page:not(#home-page) {
      margin-top: 20px;
    }

    /* Style non-home pages so they visually match the home UI (translucent card over the gradient) */
    .page:not(#home-page) {
      position: relative;
      z-index: 1;
      /* translucent white card so the body gradient is visible behind */
      background: rgba(255,255,255,0.90);
      backdrop-filter: blur(6px);
      min-height: calc(100vh - 120px);
      padding: 28px;
      margin: 40px auto;
      border-radius: 14px;
      box-shadow: 0 12px 30px rgba(18, 38, 63, 0.08);
      width: calc(100% - 40px);
      box-sizing: border-box;
      max-width: 1100px;
    }

    /* Ensure home page is completely hidden when not active */
    #home-page:not(.active) {
      display: none !important;
      visibility: hidden !important;
    }

    /* Reset body background when home page is not active */
    body:not(:has(#home-page.active)) {
      background: var(--background-gradient) !important;
      overflow: visible;
    }

    /* Ensure only active page is visible */
    .page:not(.active) {
      display: none !important;
      visibility: hidden !important;
      position: absolute;
      left: -9999px;
    }

    .page.active {
      display: block !important;
      visibility: visible !important;
      position: relative;
      left: auto;
    }

    /* Responsive design for home page */
    @media (max-width: 768px) {
      .welcome-container h1 {
        font-size: 2.5rem;
      }
      
      .welcome-subtitle {
        font-size: 1.1rem;
      }
      
      .info-card, .feature-card, .tech-stack, .quick-start {
        padding: 20px;
      }
      
      .features-grid {
        grid-template-columns: 1fr;
      }
      
      .start-steps {
        grid-template-columns: 1fr;
      }
      
      .tech-badges {
        gap: 8px;
      }
      
      .tech-badge {
        font-size: 0.8rem;
        padding: 6px 12px;
      }
      
      .page:not(#home-page) {
        padding: 10px;
        max-width: 100%;
      }
      
      .search-container {
        flex-direction: column;
        gap: 10px;
      }
      
      .date-range {
        flex-direction: column;
        align-items: stretch;
      }
      
      .forecast-container {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 10px;
      }
    }

    @media (max-width: 480px) {
      .welcome-container {
        padding: 15px;
      }
      
      .welcome-container h1 {
        font-size: 2rem;
      }
      
      .cta-button {
        padding: 15px 30px;
        font-size: 1.1rem;
      }
    }