/* Base Styles */
:root {
    --primary-color: #0072ff;
    --primary-dark: #005bcc;
    --primary-light: #cce3ff;
    --accent-color: #4caf50;
    --accent-dark: #388e3c;
    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --white: #ffffff;
    --light-bg: #f5f5f5;
    --dark-bg: #1a1a2e;
    --dark-surface: #16213e;
    --dark-card: #0f3460;
    --border-color: #dddddd;
    --border-dark: #444444;
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --info: #2196f3;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
  }
  
  /* Dark Mode Variables */
  .dark-mode {
    --text-color: #f5f5f5;
    --text-light: #bbbbbb;
    --text-lighter: #888888;
    --light-bg: #121212;
    --border-color: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans",
      "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  
  .dark-mode body {
    background-color: var(--dark-bg);
    color: var(--white);
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
  }
  
  a:hover {
    color: var(--primary-dark);
  }
  
  .dark-mode a {
    color: var(--primary-light);
  }
  
  .dark-mode a:hover {
    color: var(--white);
  }
  
  ul {
    list-style: none;
  }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  /* Typography */
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.25rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
  
  h4 {
    font-size: 1.25rem;
  }
  
  p {
    margin-bottom: 1rem;
  }
  
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
  }
  
  .btn i {
    margin-left: 0.5rem;
  }
  
  .btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
  }
  
  .btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
  }
  
  .btn-glass {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
  }
  
  .btn-glass:hover {
    background-color: rgba(255, 255, 255, 0.3);
    color: var(--white);
  }
  
  .btn-light {
    background-color: var(--white);
    color: var(--primary-color);
  }
  
  .btn-light:hover {
    background-color: var(--light-bg);
  }
  
  .btn-danger {
    background-color: var(--danger);
    color: var(--white);
  }
  
  .btn-danger:hover {
    background-color: #d32f2f;
  }
  
  .btn-block {
    display: block;
    width: 100%;
  }
  
  /* Forms */
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
  }
  
  .form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--white);
    color: var(--text-color);
    transition: var(--transition);
  }
  
  .dark-mode .form-control {
    background-color: var(--dark-surface);
    border-color: var(--border-dark);
    color: var(--white);
  }
  
  .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.2);
  }
  
  .form-message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: var(--radius);
    display: none;
  }
  
  .form-message.success {
    display: block;
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success);
    border: 1px solid rgba(76, 175, 80, 0.2);
  }
  
  .form-message.error {
    display: block;
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 67, 54, 0.2);
  }
  
  .goal-input-group {
    display: flex;
    gap: 0.5rem;
  }
  
  .goal-input-group .form-control {
    flex: 1;
  }
  
  .goal-message {
    margin: 1rem 0;
    padding: 0.75rem;
    border-radius: var(--radius);
    display: none;
  }
  
  .goal-message.success {
    display: block;
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--success);
    border: 1px solid rgba(76, 175, 80, 0.2);
  }
  
  .goal-message.error {
    display: block;
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 67, 54, 0.2);
  }
  
  /* Preloader */
  .preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
  }
  
  .preloader.fade-out {
    opacity: 0;
    visibility: hidden;
  }
  
  .water-drop {
    color: var(--white);
    animation: float 2s ease-in-out infinite;
  }
  
  .preloader p {
    color: var(--white);
    margin-top: 1rem;
    font-size: 1.25rem;
    font-weight: 300;
  }
  
  @keyframes float {
    0%,
    100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-20px);
    }
  }
  
  /* Header */
  .main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  .header-container {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: var(--transition);
  }
  
  .dark-mode .header-container {
    background-color: rgba(26, 26, 46, 0.8);
  }
  
  .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
  }
  
  .logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
  }
  
  .dark-mode .logo {
    color: var(--primary-light);
  }
  
  .logo i {
    margin-right: 0.5rem;
  }
  
  .desktop-nav {
    display: none;
  }
  
  @media (min-width: 768px) {
    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 2rem;
    }
  }
  
  .nav-link {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
  }
  
  .dark-mode .nav-link {
    color: var(--white);
  }
  
  .nav-link:hover,
  .nav-link.active {
    color: var(--primary-color);
  }
  
  .dark-mode .nav-link:hover,
  .dark-mode .nav-link.active {
    color: var(--primary-light);
  }
  
  .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
  }
  
  .dark-mode .nav-link.active::after {
    background-color: var(--primary-light);
  }
  
  .dropdown {
    position: relative;
  }
  
  .dropdown-toggle {
    display: flex;
    align-items: center;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-color);
  }
  
  .dark-mode .dropdown-toggle {
    color: var(--white);
  }
  
  .dropdown-toggle i {
    margin-left: 0.25rem;
    font-size: 0.75rem;
  }
  
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 200px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 10;
  }
  
  .dark-mode .dropdown-menu {
    background-color: var(--dark-surface);
  }
  
  .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .dropdown-item {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-color);
  }
  
  .dark-mode .dropdown-item {
    color: var(--white);
  }
  
  .dropdown-item:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
  }
  
  .dark-mode .dropdown-item:hover {
    background-color: var(--dark-card);
    color: var(--primary-light);
  }
  
  .header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .theme-toggle,
  .menu-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
  }
  
  .dark-mode .theme-toggle,
  .dark-mode .menu-toggle {
    color: var(--white);
  }
  
  .theme-toggle:hover,
  .menu-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
  }
  
  .dark-mode .theme-toggle:hover,
  .dark-mode .menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .btn-login {
    display: none;
  }
  
  @media (min-width: 768px) {
    .btn-login {
      display: inline-flex;
      padding: 0.5rem 1.25rem;
      background-color: var(--primary-color);
      color: var(--white);
      border-radius: var(--radius-full);
      font-weight: 500;
    }
  
    .btn-login:hover {
      background-color: var(--primary-dark);
      color: var(--white);
    }
  
    .menu-toggle {
      display: none;
    }
  }
  
  /* Mobile Menu */
  .mobile-menu {
    background-color: var(--white);
    height: 0;
    overflow: hidden;
    transition: height 0.3s ease;
  }
  
  .dark-mode .mobile-menu {
    background-color: var(--dark-surface);
  }
  
  .mobile-menu.active {
    height: auto;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  }
  
  .mobile-nav {
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
  }
  
  .mobile-nav .nav-link {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .dark-mode .mobile-nav .nav-link {
    border-bottom-color: var(--border-dark);
  }
  
  .mobile-dropdown-toggle {
    width: 100%;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .mobile-dropdown-menu {
    padding-left: 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .mobile-dropdown-menu.active {
    max-height: 200px;
  }
  
  .mobile-dropdown-menu .dropdown-item {
    padding: 0.5rem 0;
  }
  
  /* Hero Section */
  .hero-section {
    position: relative;
    min-height: 100vh;
    padding-top: 70px;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  
  .parallax {
    position: relative;
    overflow: hidden;
  }
  
  .parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
  }
  
  .parallax-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 114, 255, 0.7), rgba(0, 91, 204, 0.5));
  }
  
  .overlay.dark {
    background: rgba(0, 0, 0, 0.7);
  }
  
  .hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 4rem 0;
  }
  
  @media (min-width: 768px) {
    .hero-content {
      grid-template-columns: 1fr 1fr;
      align-items: center;
    }
  }
  
  .hero-text {
    color: var(--white);
  }
  
  .hero-text h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
  }
  
  .hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
  }
  
  .hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .hero-card {
    display: none;
  }
  
  @media (min-width: 768px) {
    .hero-card {
      display: block;
    }
  }
  
  .wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  
  /* Glass Card */
  .glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .dark-mode .glass-card {
    background: rgba(15, 52, 96, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }
  
  .glass-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
  }
  
  .card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
  }
  
  .dark-mode .card-icon {
    color: var(--primary-light);
  }
  
  .card-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
  }
  
  .dark-mode .card-header {
    color: var(--primary-light);
  }
  
  .card-header i {
    font-size: 1.5rem;
    margin-right: 0.75rem;
  }
  
  /* Sections */
  section {
    padding: 5rem 0;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .section-header h2 {
    margin-bottom: 0.5rem;
  }
  
  .section-header p {
    color: var(--text-light);
    font-size: 1.25rem;
  }
  
  .section-divider {
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 1.5rem auto 0;
    border-radius: 2px;
  }
  
  /* Features Section */
  .features-section {
    background-color: var(--white);
  }
  
  .dark-mode .features-section {
    background-color: var(--dark-bg);
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 640px) {
    .features-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .features-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .feature-card {
    text-align: center;
  }
  
  .feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
  }
  
  .dark-mode .feature-icon {
    color: var(--primary-light);
  }
  
  /* Info Section */
  .info-section {
    background-color: var(--light-bg);
  }
  
  .dark-mode .info-section {
    background-color: var(--dark-surface);
  }
  
  .info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 768px) {
    .info-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  .info-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
  }
  
  .info-header i {
    font-size: 1.5rem;
    margin-right: 0.75rem;
  }
  
  .info-header:first-child i {
    color: var(--info);
  }
  
  .info-header:last-child i {
    color: var(--accent-color);
  }
  
  .info-list li {
    display: flex;
    margin-bottom: 1rem;
  }
  
  .info-list i {
    color: var(--primary-color);
    margin-right: 0.75rem;
    margin-top: 0.25rem;
  }
  
  .dark-mode .info-list i {
    color: var(--primary-light);
  }
  
  /* Tracker Section */
  .tracker-section {
    background-color: var(--white);
  }
  
  .dark-mode .tracker-section {
    background-color: var(--dark-bg);
  }
  
  .tracker-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  @media (min-width: 768px) {
    .tracker-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  .water-meter {
    margin: 2rem 0;
  }
  
  .meter-container {
    height: 24px;
    background-color: var(--light-bg);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
  }
  
  .dark-mode .meter-container {
    background-color: var(--dark-surface);
  }
  
  .meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--danger));
    width: 0%;
    transition: width 1s ease-out;
    border-radius: 12px;
  }
  
  .meter-marker {
    position: absolute;
    top: -20px;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-light);
  }
  
  .meter-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-light);
  }
  
  .usage-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
  }
  
  .stat-card {
    background-color: var(--light-bg);
    padding: 1rem;
    border-radius: var(--radius);
    text-align: center;
  }
  
  .dark-mode .stat-card {
    background-color: var(--dark-surface);
  }
  
  .stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
  }
  
  .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
  }
  
  .dark-mode .stat-value {
    color: var(--primary-light);
  }
  
  .stat-unit {
    font-size: 0.875rem;
    font-weight: 400;
  }
  
  .comparison-text {
    text-align: center;
    color: var(--text-light);
  }
  
  .usage-history {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
  }
  
  .usage-list {
    border-top: 1px solid var(--border-color);
  }
  
  .dark-mode .usage-list {
    border-top-color: var(--border-dark);
  }
  
  .usage-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .dark-mode .usage-list li {
    border-bottom-color: var(--border-dark);
  }
  
  .usage-list .empty-message {
    text-align: center;
    color: var(--text-light);
    padding: 2rem 0;
  }
  
  .usage-list .delete-btn {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1rem;
  }
  
  .goal-progress {
    margin-top: 2rem;
  }
  
  .goal-progress h4 {
    margin-bottom: 1rem;
  }
  
  .progress-container {
    height: 24px;
    background-color: var(--light-bg);
    border-radius: 12px;
    overflow: hidden;
  }
  
  .dark-mode .progress-container {
    background-color: var(--dark-surface);
  }
  
  .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--primary-color));
    width: 0%;
    transition: width 1s ease-out;
  }
  
  .progress-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-light);
  }
  
  .goal-status {
    margin-top: 1rem;
    font-weight: 600;
  }
  
  .goal-status.success {
    color: var(--success);
  }
  
  .goal-status.warning {
    color: var(--warning);
  }
  
  .goal-status.danger {
    color: var(--danger);
  }
  
  /* Achievements Section */
  .achievements-section {
    background-color: var(--light-bg);
  }
  
  .dark-mode .achievements-section {
    background-color: var(--dark-surface);
  }
  
  .badges-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
  }
  
  @media (min-width: 768px) {
    .badges-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .badge-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 2rem;
  }
  
  .badge-icon.locked {
    background-color: var(--light-bg);
    color: var(--text-lighter);
  }
  
  .dark-mode .badge-icon.locked {
    background-color: var(--dark-surface);
    color: var(--text-light);
  }
  
  .badge-icon.unlocked {
    background-color: var(--primary-light);
    color: var(--primary-color);
  }
  
  .dark-mode .badge-icon.unlocked {
    background-color: rgba(0, 114, 255, 0.2);
    color: var(--primary-light);
  }
  
  .badge h4 {
    margin-bottom: 0.25rem;
  }
  
  .badge p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
  }
  
  .badge-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background-color: var(--light-bg);
    border-radius: var(--radius-full);
    color: var(--text-light);
  }
  
  .dark-mode .badge-status {
    background-color: var(--dark-surface);
  }
  
  .text-center {
    text-align: center;
  }
  
  /* CTA Section */
  .cta-section {
    position: relative;
    padding: 5rem 0;
    color: var(--white);
  }
  
  .cta-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
  }
  
  .cta-content h2 {
    color: var(--white);
    margin-bottom: 1rem;
  }
  
  .cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
  }
  
  /* Footer */
  .site-footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
  }
  
  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
  }
  
  @media (min-width: 640px) {
    .footer-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .footer-grid {
      grid-template-columns: 2fr 1fr 1fr 2fr;
    }
  }
  
  .footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
  }
  
  .footer-logo i {
    margin-right: 0.5rem;
  }
  
  .footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: var(--transition);
  }
  
  .social-link:hover {
    background-color: var(--primary-color);
    color: var(--white);
  }
  
  .footer-links h4,
  .footer-newsletter h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    position: relative;
  }
  
  .footer-links h4::after,
  .footer-newsletter h4::after {
    content: "";
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
  }
  
  .footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
  }
  
  .footer-links a:hover {
    color: var(--white);
  }
  
  .footer-newsletter p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
  }
  
  .newsletter-form {
    display: flex;
  }
  
  .newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-size: 0.875rem;
  }
  
  .newsletter-form button {
    padding: 0.75rem 1.25rem;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .newsletter-form button:hover {
    background-color: var(--primary-dark);
  }
  
  .footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  @media (min-width: 768px) {
    .footer-bottom {
      flex-direction: row;
      justify-content: space-between;
      text-align: left;
    }
  }
  
  .footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
  }
  
  @media (min-width: 768px) {
    .footer-bottom p {
      margin-bottom: 0;
    }
  }
  
  .footer-legal {
    display: flex;
    gap: 1.5rem;
  }
  
  .footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
  }
  
  .footer-legal a:hover {
    color: var(--white);
  }
  
  /* Back to Top Button */
  .back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
    border: none;
  }
  
  .back-to-top.show {
    opacity: 1;
    visibility: visible;
  }
  
  .back-to-top:hover {
    background-color: var(--primary-dark);
  }
  
  /* Animations */
  .animate-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 1s forwards;
  }
  
  @keyframes fadeIn {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  
  .animate-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
  }
  
  [data-animation="fade-right"] {
    transform: translateX(-20px);
  }
  
  [data-animation="fade-left"] {
    transform: translateX(20px);
  }
  
  [data-animation="fade-right"].active,
  [data-animation="fade-left"].active {
    transform: translateX(0);
  }