/* Custom Variables */
:root {
  --background-color-dark: #0B0C10;
  --background-color-light: #F9FAFB;
  --container-bg-light: #FFFFFF;
  --container-bg-dark: #1C2530;
  --text-color-light: #2D3748;
  --text-color-dark: #D1D5DB;
  --light-text-light: #6B7280;
  --light-text-dark: #A0AEC0;
  --primary-accent-color: #10B981;
  --secondary-accent-color: #3B82F6;
  --border-color-light: #E5E7EB;
  --border-color-dark: #2D3748;
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.05); /* Reduced for performance */
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.08);
  --radius: 8px;
  --glow-intensity: 0.6;
  --transition-speed: 0.2s; /* Reduced for snappier feel */
}

/* Global Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-color-light);
  line-height: 1.6;
  background-color: var(--background-color-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body.dark-mode {
  background-color: var(--background-color-dark);
  color: var(--text-color-dark);
}

/* Header Styles */
.header {
  background-color: var(--container-bg-light);
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  transition: background-color var(--transition-speed);
}

body.dark-mode .header {
  background-color: var(--container-bg-dark);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--primary-accent-color);
  cursor: pointer;
  font-size: 20px;
  padding: 8px;
  display: none; /* Hidden on desktop */
  transition: transform var(--transition-speed);
}

.menu-toggle i {
  transition: transform var(--transition-speed);
}

.menu-toggle.active i {
  transform: rotate(45deg);
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-accent-color);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color var(--transition-speed);
}

.logo:hover {
  color: var(--secondary-accent-color);
}

.theme-icon-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  font-size: 20px;
  color: var(--primary-accent-color);
  transition: color var(--transition-speed), transform var(--transition-speed);
}

.theme-icon-button:hover {
  color: var(--secondary-accent-color);
  transform: scale(1.1);
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-category {
  position: relative;
  padding: 8px 12px;
  color: var(--text-color-light);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition-speed);
}

body.dark-mode .nav-category {
  color: var(--text-color-dark);
}

.nav-category:hover {
  color: var(--primary-accent-color);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--container-bg-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-speed), transform var(--transition-speed);
  z-index: 101;
}

body.dark-mode .nav-dropdown {
  background-color: var(--container-bg-dark);
}

.nav-category:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown li {
  list-style: none;
  border-bottom: 1px solid var(--border-color-light);
}

body.dark-mode .nav-dropdown li {
  border-bottom-color: var(--border-color-dark);
}

.nav-dropdown a {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: var(--text-color-light);
  text-decoration: none;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

body.dark-mode .nav-dropdown a {
  color: var(--text-color-dark);
}

.nav-dropdown a:hover,
.nav-dropdown a.active {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--primary-accent-color);
}

.nav-dropdown i {
  margin-right: 12px;
  width: 20px;
  text-align: center;
  font-size: 16px;
}

/* Overlay Menu Styles (Mobile) */
.overlay-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed);
}

.overlay-menu.show {
  opacity: 1;
  visibility: visible;
}

.menu-content {
  background-color: var(--container-bg-light);
  border-radius: var(--radius);
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  padding: 24px;
  transform: scale(0.9);
  transition: transform var(--transition-speed);
}

body.dark-mode .menu-content {
  background-color: var(--container-bg-dark);
}

.overlay-menu.show .menu-content {
  transform: scale(1);
}

.menu-close {
  background: none;
  border: none;
  color: var(--primary-accent-color);
  font-size: 24px;
  cursor: pointer;
  position: absolute;
  top: 16px;
  right: 16px;
}

.menu-close:hover {
  color: var(--secondary-accent-color);
}

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

.menu-category {
  margin-bottom: 16px;
  border-top: 1px solid var(--border-color-light);
  padding-top: 12px;
}

body.dark-mode .menu-category {
  border-top-color: var(--border-color-dark);
}

.menu-category:first-child {
  border-top: none;
  padding-top: 0;
}

.category-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.1));
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  color: var(--text-color-light);
  transition: background-color var(--transition-speed);
}

body.dark-mode .category-toggle {
  color: var(--text-color-dark);
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.15));
}

.category-toggle:hover {
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.2));
}

.category-toggle i {
  transition: transform var(--transition-speed);
}

.category-toggle.active i {
  transform: rotate(180deg);
}

.category-items {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed) ease;
  padding-left: 16px;
}

.category-items.show {
  max-height: 600px;
}

.category-items li {
  border-bottom: 1px solid var(--border-color-light);
}

body.dark-mode .category-items li {
  border-bottom-color: var(--border-color-dark);
}

.category-items a {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: var(--text-color-light);
  text-decoration: none;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

body.dark-mode .category-items a {
  color: var(--text-color-dark);
}

.category-items a:hover,
.category-items a.active {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--primary-accent-color);
}

.category-items i {
  margin-right: 12px;
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.badge {
  background-color: var(--secondary-accent-color);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 8px;
  text-transform: uppercase;
  font-weight: 500;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 40px 24px;
  background-color: var(--container-bg-light);
  max-width: 1200px;
  margin: 24px auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark-mode .hero-section {
  background-color: var(--container-bg-dark);
}

.hero-section h1 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color-light);
  margin-bottom: 16px;
}

body.dark-mode .hero-section h1 {
  color: var(--text-color-dark);
}

.hero-section p {
  font-size: 1.1rem;
  color: var(--light-text-light);
  max-width: 700px;
  margin: 0 auto 24px;
}

body.dark-mode .hero-section p {
  color: var(--light-text-dark);
}

.btn {
  display: inline-block;
  background-color: var(--primary-accent-color);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 500;
  transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--secondary-accent-color);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Main Content */
.main-content {
  padding: 60px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.main-content h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color-light);
  text-align: center;
  margin-bottom: 40px;
}

body.dark-mode .main-content h2 {
  color: var(--text-color-dark);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.tool-card {
  background-color: var(--container-bg-light);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition-speed);
}

body.dark-mode .tool-card {
  background-color: var(--container-bg-dark);
}

.tool-card:hover {
  transform: translateY(-6px);
}

.tool-card i {
  font-size: 3rem;
  color: var(--primary-accent-color);
  margin-bottom: 16px;
}

.tool-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-color-light);
  margin-bottom: 12px;
}

body.dark-mode .tool-card h3 {
  color: var(--text-color-dark);
}

.tool-card p {
  font-size: 0.95rem;
  color: var(--light-text-light);
  margin-bottom: 16px;
}

body.dark-mode .tool-card p {
  color: var(--light-text-dark);
}

/* How It Works */
.how-it-works {
  padding: 60px 24px;
  text-align: center;
  background-color: var(--background-color-light);
}

body.dark-mode .how-it-works {
  background-color: var(--background-color-dark);
}

.how-it-works h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color-light);
  margin-bottom: 40px;
}

body.dark-mode .how-it-works h2 {
  color: var(--text-color-dark);
}

.steps {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  background-color: var(--container-bg-light);
  border-radius: var(--radius);
  padding: 24px;
  width: 220px;
  box-shadow: var(--shadow);
  transition: transform var(--transition-speed);
}

body.dark-mode .step {
  background-color: var(--container-bg-dark);
}

.step:hover {
  transform: translateY(-6px);
}

.step i {
  font-size: 2rem;
  color: var(--primary-accent-color);
  margin-bottom: 16px;
}

.step h4 {
  font-size: 1.1rem;
  color: var(--text-color-light);
  margin-bottom: 12px;
  font-weight: 600;
}

body.dark-mode .step h4 {
  color: var(--text-color-dark);
}

.step p {
  font-size: 0.95rem;
  color: var(--light-text-light);
  line-height: 1.5;
}

body.dark-mode .step p {
  color: var(--light-text-dark);
}

/* Ad Section */
.ad-section {
  text-align: center;
  padding: 20px 16px;
  background-color: var(--background-color-light);
}

body.dark-mode .ad-section {
  background-color: var(--background-color-dark);
}

.ad-section ins {
  display: block;
  margin: 0 auto;
  max-width: 728px; /* Standard leaderboard size */
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--light-text-light);
  font-size: 0.95rem;
  border-top: 1px solid var(--border-color-light);
  background-color: var(--container-bg-light);
}

body.dark-mode footer {
  color: var(--light-text-dark);
  border-top-color: var(--border-color-dark);
  background-color: var(--container-bg-dark);
}

.footer-nav {
  margin-top: 16px;
}

.footer-nav a {
  color: var(--light-text-light);
  margin: 0 12px;
  text-decoration: none;
  transition: color var(--transition-speed);
}

body.dark-mode .footer-nav a {
  color: var(--light-text-dark);
}

.footer-nav a:hover {
  color: var(--primary-accent-color);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
  background-color: var(--container-bg-light);
  margin: 5% auto;
  padding: 24px;
  width: 90%;
  max-width: 800px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

body.dark-mode .modal-content {
  background-color: var(--container-bg-dark);
  color: var(--text-color-dark);
}

.modal-iframe {
  width: 100%;
  height: calc(80vh - 48px);
  border: none;
  border-radius: var(--radius);
}

.close-btn {
  color: var(--light-text-light);
  position: absolute;
  right: 16px;
  top: 16px;
  font-size: 24px;
  cursor: pointer;
  transition: color var(--transition-speed);
}

body.dark-mode .close-btn {
  color: var(--light-text-dark);
}

.close-btn:hover {
  color: var(--primary-accent-color);
}

.modal-btn {
  background: none;
  border: none;
  color: var(--secondary-accent-color);
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-speed);
}

.modal-btn:hover {
  color: var(--primary-accent-color);
}

/* Cookie Consent */
.cookie-consent {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background-color: var(--container-bg-light);
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1000;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

body.dark-mode .cookie-consent {
  background-color: var(--container-bg-dark);
}

.cookie-consent p {
  color: var(--text-color-light);
  margin: 0;
  font-size: 0.9rem;
  flex: 1;
}

body.dark-mode .cookie-consent p {
  color: var(--text-color-dark);
}

.cookie-consent a {
  color: var(--secondary-accent-color);
  text-decoration: underline;
}

.cookie-consent a:hover {
  color: var(--primary-accent-color);
}

.cookie-consent button {
  background-color: var(--primary-accent-color);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color var(--transition-speed);
}

.cookie-consent button:hover {
  background-color: var(--secondary-accent-color);
}

/* Animations */
@keyframes textGlow {
  0% { text-shadow: 0 0 4px rgba(16, 185, 129, 0.5); }
  50% { text-shadow: 0 0 8px rgba(16, 185, 129, 0.7); }
  100% { text-shadow: 0 0 4px rgba(16, 185, 129, 0.5); }
}

.logo {
  animation: textGlow 2s ease-in-out infinite alternate;
}

/* Responsive Styles */
@media (min-width: 769px) {
  .overlay-menu {
    display: none;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .desktop-nav {
    display: none;
  }

  .menu-content {
    width: 95%;
  }

  .hero-section {
    padding: 40px 16px;
    margin: 16px auto;
  }

  .main-content {
    padding: 40px 16px;
  }

  .how-it-works {
    padding: 40px 16px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step {
    width: 100%;
    max-width: 300px;
  }

  .ad-section ins {
    max-width: 320px;
  }

  .cookie-consent {
    left: 16px;
    right: 16px;
    bottom: 16px;
    flex-direction: column;
    text-align: center;
  }

  .cookie-consent p {
    margin-bottom: 12px;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 0 16px;
    height: 56px;
  }

  .logo {
    font-size: 1.2rem;
  }

  .hero-section h1 {
    font-size: 1.8rem;
  }

  .main-content h2,
  .how-it-works h2 {
    font-size: 1.6rem;
  }

  .category-toggle {
    font-size: 1rem;
  }

  .category-items a {
    font-size: 0.95rem;
  }
}