:root {
  --primary: #1b336b;
  --secondary: #1b336b;
  --text: #e0e0e0;
  --text-light: #b0b0b0;
  --bg: #121212;
  --card-bg: #1e1e1e;
  --border: #333333;
  --error: #e57373;
  --success: #81c784;
  --tab-active: #1b336b;
  --tab-inactive: #2a2a2a;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: 0;
  margin: 0;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

header {
  text-align: center;
  padding: 2rem 0;
}

h1 {
  font-weight: 600;
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.description {
  max-width: 600px;
  margin: 0 auto 1.5rem;
  color: var(--text-light);
  font-size: 1.1rem;
}

/* Layout Utilities */
.flex-row {
  display: flex;
  gap: 0.5rem;
}

/* Tab Navigation */
.tabs-container {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: visible;
}

.tab {
  padding: 0.5rem 1.5rem;
  background-color: var(--tab-inactive);
  border: 1px solid var(--border);
  border-bottom: none;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
  top: 1px;
  border-radius: 0.5rem 0.5rem 0 0;
  margin-right: 0.25rem;
  white-space: nowrap;
}

.tab:hover {
  background-color: #333;
}

.tab.active {
  background-color: var(--tab-active);
  color: white;
  border-color: var(--tab-active);
}

.search-section {
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.search-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  margin-bottom: 1rem;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #333;
  background-color: #2a2a2a;
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  color: white;
  transition: padding 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.search-button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
}

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

.filter-section {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.filter-group {
  flex: 1;
  min-width: 200px;
}

.filter-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
}

.filter-input {
  width: 100%;
  padding: 0.5rem;
  background-color: #2a2a2a;
  color: var(--text);
  border: 1px solid #333;
  border-radius: 0.5rem;
  font-family: inherit;
}

.results-container {
  background: var(--card-bg);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  overflow: hidden;
}

.results-header {
  padding: 1rem;
  background: #1a1a1a;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.result-item.exact-match {
  background: rgba(27, 51, 107, 0.15);
  border-left: 4px solid var(--primary);
}

.result-item.exact-match:hover {
  background: rgba(27, 51, 107, 0.25);
}

.gematria-display {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  color: var(--text-light);
  background: rgba(0,0,0,0.3);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  pointer-events: none;
  min-width: 90px;
  text-align: center;
  z-index: 10;
}

.advanced-toggle {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.advanced-toggle svg {
  transition: transform 0.3s ease;
  width: 16px;
  height: 16px;
}

.advanced-toggle.rotated svg {
  transform: rotate(180deg);
}

.advanced-filters {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  overflow: hidden;
}

.advanced-filters > div {
  min-height: 0;
  overflow: hidden;
}

.advanced-filters.visible {
  grid-template-rows: 1fr;
  opacity: 1;
}

.results-count {
  font-size: 0.9rem;
  color: var(--text-light);
}

.results-list {
  max-height: 60vh;
  overflow-y: auto;
}

.result-item {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}

.result-item:hover {
  background: rgba(255,255,255,0.05);
}

.result-word {
  font-size: 1.5rem;
  direction: rtl;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.result-meta {
  font-size: 0.9rem;
  color: var(--text-light);
}

.result-value {
  text-align: right;
  width: 11rem;
}

/* ===== Custom Scrollbar ===== */
.results-list {
  scrollbar-width: thin;
  scrollbar-color: var(--text-light) var(--card-bg);
}

/* Webkit browsers (Chrome, Safari) */
.results-list::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.results-list::-webkit-scrollbar-track {
  background: var(--card-bg);
  border-radius: 3px;
}

.results-list::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 3px;
  transition: background 0.3s ease;
}

.results-list::-webkit-scrollbar-thumb:hover {
  background: #2a4a9e;
}

/* Optional: Add to body for main scrollbar */
body {
  scrollbar-width: thin;
  scrollbar-color: var(--text-light) var(--bg);
}

body::-webkit-scrollbar {
  width: 8px;
}

body::-webkit-scrollbar-track {
  background: var(--bg);
}

body::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 4px;
}

body::-webkit-scrollbar-thumb:hover {
  background: #2a4a9e;
}

.loading {
  padding: 2rem;
  text-align: center;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0,0,0,0.1);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.no-results {
  padding: 2rem;
  text-align: center;
  color: var(--text-light);
}

.error-message {
  color: var(--error);
  margin-top: 0.5rem;
  font-size: 0.9rem;
  text-align: center;
  padding: 2rem;
}

.instructions {
  background: #1a1a1a;
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.instructions h3 {
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.instructions ul {
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.instructions li {
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .search-grid {
    grid-template-columns: 1fr;
  }
  
  .results-list {
    max-height: 50vh;
  }
  
  .result-item {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .result-value {
    text-align: left;
    margin-top: 0.5rem;
    width: 100%;
  }
  
  .gematria-display {
    min-width: 70px;
    font-size: 0.7rem;
  }

  .tabs-container {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 5px;
  }
  
  .tab {
    margin-bottom: 0;
    border-bottom: 1px solid var(--border);
    width: auto;
    text-align: center;
    border-radius: 0.5rem;
    margin-right: 0.25rem;
  }
  
  .filter-section {
    flex-direction: column;
  }
  
  .filter-group {
    min-width: 100%;
  }

  .search-input {
    padding: 0.75rem;
  }
}