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

:root {
  /* Light Theme Colors (Default) */
  --primary-bg: #f8f9fa;
  --secondary-bg: #ffffff;
  --accent-color: #6c63ff;
  --accent-color-light: #8a84ff;
  --accent-color-dark: #554fd8;
  --text-color: #333333;
  --text-color-light: #666666;
  --text-color-lighter: #888888;
  --border-color: #e0e0e0;
  --border-color-light: #f0f0f0;
  --shadow-color: rgba(0, 0, 0, 0.08);
  --shadow-color-strong: rgba(0, 0, 0, 0.12);
  --card-bg: #ffffff;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  --love-color: #ff4081;
  --gamer-color: #00c853;
  --fancy-color: #ff9800;
  --font-color: #9c27b0;
  --input-bg: #ffffff;
  --input-border: #ddd;
  --modal-bg: #ffffff;
}

.dark-theme {
  /* Dark Theme Colors */
  --primary-bg: #121212;
  --secondary-bg: #1e1e1e;
  --accent-color: #8a84ff;
  --accent-color-light: #a5a0ff;
  --accent-color-dark: #6c63ff;
  --text-color: #ffffff;
  --text-color-light: #cccccc;
  --text-color-lighter: #aaaaaa;
  --border-color: #333333;
  --border-color-light: #444444;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --shadow-color-strong: rgba(0, 0, 0, 0.5);
  --card-bg: #1e1e1e;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  --love-color: #ff79b0;
  --gamer-color: #00e676;
  --fancy-color: #ffb74d;
  --font-color: #ce93d8;
  --input-bg: #2d2d2d;
  --input-border: #444;
  --modal-bg: #252525;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--primary-bg);
  color: var(--text-color);
  min-height: 100vh;
  padding-bottom: 40px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header Styles */
.header {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-color-dark));
  color: white;
  text-align: center;
  padding: 20px 15px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
  background-size: cover;
}

.header-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.header h1 {
  font-size: 2rem;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  letter-spacing: 0.5px;
}

.header p {
  font-size: 1rem;
  opacity: 0.95;
  font-weight: 300;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* Sticky Container */
.sticky-container {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--secondary-bg);
  backdrop-filter: blur(10px);
  padding: 20px 15px;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.input-section {
  max-width: 800px;
  margin: 0 auto;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 20px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 15px;
  color: var(--accent-color);
  font-size: 18px;
  z-index: 1;
}

input {
  width: 100%;
  padding: 16px 50px 16px 45px;
  font-size: 16px;
  border-radius: 10px;
  border: 2px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-color);
  transition: all 0.3s ease;
}

input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

input::placeholder {
  color: var(--text-color-lighter);
}

.symbol-picker-btn {
  position: absolute;
  right: 10px;
  background: transparent;
  border: none;
  color: var(--accent-color);
  font-size: 20px;
  cursor: pointer;
  padding: 5px;
  transition: all 0.3s ease;
}

.symbol-picker-btn:hover {
  color: var(--accent-color-light);
  transform: scale(1.1);
}

.generate-btn {
  padding: 16px;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-color-dark));
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}

.generate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(108, 99, 255, 0.4);
  background: linear-gradient(135deg, var(--accent-color-light), var(--accent-color));
}

/* Category Tabs */
.category-title {
  text-align: center;
  margin: 20px 0 15px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-color);
  letter-spacing: 0.5px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 15px;
}

.tab-btn {
  padding: 14px 10px;
  font-size: 15px;
  background: var(--card-bg);
  color: var(--text-color-light);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  box-shadow: var(--card-shadow);
}

.tab-btn:hover {
  background: var(--border-color-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px var(--shadow-color);
}

.tab-btn.active {
  background: var(--card-bg);
  border-color: var(--accent-color);
  color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.2);
}

.tab-btn.active.love {
  border-color: var(--love-color);
  color: var(--love-color);
}

.tab-btn.active.gamer {
  border-color: var(--gamer-color);
  color: var(--gamer-color);
}

.tab-btn.active.fancy {
  border-color: var(--fancy-color);
  color: var(--fancy-color);
}

.tab-btn.active.font {
  border-color: var(--font-color);
  color: var(--font-color);
}

/* Suggestions Toggle */
.suggestions-toggle {
  text-align: center;
  margin-top: 15px;
}

.toggle-suggestions-btn {
  padding: 12px 24px;
  background: var(--card-bg);
  color: var(--text-color);
  border: 2px solid var(--accent-color);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--card-shadow);
}

.toggle-suggestions-btn:hover {
  background: rgba(108, 99, 255, 0.1);
  transform: translateY(-2px);
}

/* Main Container */
.main-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px 15px;
}

.suggestions-section {
  margin: 30px 0;
  display: none;
}

.suggestions-section.show {
  display: block;
}

.suggestions-title {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 15px;
}

.suggestion-box {
  background: var(--card-bg);
  padding: 18px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-left: 4px solid;
  transition: all 0.3s ease;
  box-shadow: var(--card-shadow);
}

.suggestion-box:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--shadow-color);
}

.suggestion-box.love {
  border-left-color: var(--love-color);
  background: var(--card-bg);
}

.suggestion-box.gamer {
  border-left-color: var(--gamer-color);
  background: var(--card-bg);
}

.suggestion-box.fancy {
  border-left-color: var(--fancy-color);
  background: var(--card-bg);
}

.suggestion-box.font {
  border-left-color: var(--font-color);
  background: var(--card-bg);
}

.suggestion-text {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--text-color);
}

.suggestion-copy-btn {
  background: var(--accent-color);
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 8px;
  border: none;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.suggestion-copy-btn:hover {
  background: var(--accent-color-light);
  transform: scale(1.05);
}

/* Results Section */
.results-section {
  margin-top: 40px;
}

.results-title {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

#resultsCount {
  background: var(--accent-color);
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  min-height: 100px;
}

/* Style Box */
.style-box {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid;
  transition: all 0.3s ease;
  animation: fadeIn 0.5s ease;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow: var(--card-shadow);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.style-box.love {
  border-left-color: var(--love-color);
}

.style-box.gamer {
  border-left-color: var(--gamer-color);
}

.style-box.fancy {
  border-left-color: var(--fancy-color);
}

.style-box.font {
  border-left-color: var(--font-color);
}

/* Style Text */
.style-text {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.5px;
  word-break: break-word;
  overflow-wrap: break-word;
  line-height: 1.4;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 15px;
  background: var(--primary-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

/* Copy Button */
.copy-btn {
  background: var(--accent-color);
  padding: 12px 20px;
  font-size: 15px;
  border-radius: 8px;
  border: none;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  width: 100%;
  margin-top: 5px;
}

.copy-btn:hover {
  background: var(--accent-color-light);
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}

.copy-btn.copied {
  background: var(--gamer-color);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-color-light);
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 20px;
  color: var(--accent-color);
}

.empty-state p {
  font-size: 18px;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Symbol Modal Styles */
.symbol-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.symbol-modal.show {
  display: flex;
}

.modal-content {
  background: var(--modal-bg);
  width: 100%;
  max-width: 800px;
  border-radius: 15px;
  overflow: hidden;
  border: 2px solid var(--accent-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 20px;
  background: rgba(108, 99, 255, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.5rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.close-modal {
  background: transparent;
  border: none;
  color: var(--text-color);
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.close-modal:hover {
  color: var(--accent-color);
  transform: scale(1.1);
}

.modal-tabs {
  display: flex;
  background: var(--primary-bg);
  border-bottom: 1px solid var(--border-color);
}

.modal-tab-btn {
  flex: 1;
  padding: 15px;
  background: transparent;
  border: none;
  color: var(--text-color-light);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}

.modal-tab-btn:hover {
  color: var(--text-color);
  background: var(--border-color-light);
}

.modal-tab-btn.active {
  color: var(--accent-color);
  border-bottom: 3px solid var(--accent-color);
  font-weight: 600;
}

.symbols-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 15px;
  padding: 20px;
  overflow-y: auto;
  max-height: 50vh;
}

.symbol-item {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
}

.symbol-item:hover {
  background: var(--border-color-light);
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 8px 20px var(--shadow-color);
}

.symbol-display {
  font-size: 28px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
}

.symbol-name {
  font-size: 12px;
  color: var(--text-color-light);
  text-align: center;
}

.symbol-actions {
  display: flex;
  gap: 8px;
  width: 100%;
}

.symbol-insert-btn, .symbol-copy-btn {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.symbol-insert-btn {
  background: var(--accent-color);
  color: white;
}

.symbol-insert-btn:hover {
  background: var(--accent-color-light);
}

.symbol-copy-btn {
  background: var(--primary-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.symbol-copy-btn:hover {
  background: var(--border-color-light);
}

/* Scroll to Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--shadow-color-strong);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  transform: translateY(-5px);
  background: var(--accent-color-light);
  box-shadow: 0 6px 20px var(--shadow-color-strong);
}

/* Toast Notification */
.toast-message {
  position: fixed;
  bottom: 80px;
  right: 30px;
  background: var(--gamer-color);
  color: white;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--shadow-color-strong);
  z-index: 2000;
  animation: slideIn 0.3s ease;
}

@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; }
}

/* Responsive Styles */
@media (max-width: 768px) {
  .tabs {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .suggestions-grid,
  .results-grid {
    grid-template-columns: 1fr;
  }
  
  .header h1 {
    font-size: 1.8rem;
  }
  
  .header p {
    font-size: 0.95rem;
  }
  
  .theme-toggle-btn {
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  
  .scroll-top-btn {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
  
  .symbols-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
  
  .modal-tabs {
    flex-wrap: wrap;
  }
  
  .modal-tab-btn {
    flex: 0 0 50%;
  }
  
  .style-text {
    font-size: 20px;
    min-height: 50px;
    padding: 12px;
  }
  
  .copy-btn {
    padding: 14px;
    font-size: 14px;
  }
}

@media (min-width: 1200px) {
  .tabs {
    gap: 15px;
  }
  
  .tab-btn {
    padding: 16px 12px;
    font-size: 16px;
  }
  
  .results-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  }
}

.no-suggestions, .no-symbols {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-color-light);
  font-style: italic;
  grid-column: 1 / -1;
  }

.category-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 10px 15px 0;
}

.seo-info {
  max-width: 900px;
  margin: 40px auto;
  padding: 15px;
  font-size: 13px;
  line-height: 1.6;
  color: #666;
}

.seo-info h2 {
  font-size: 16px;
  margin-bottom: 8px;
  color: #444;
  }