/* ============================================
   WayVIP Tools Pages Styles
   Tools center + individual tool pages
   ============================================ */

/* --- Page Background --- */
.tools-page {
  min-height: 100vh;
  background: var(--bg-primary);
  padding-top: var(--nav-height);
}

.tools-page::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-bg-mesh);
  pointer-events: none;
  z-index: 0;
}

/* --- Tools Hero --- */
.tools-hero {
  text-align: center;
  padding: var(--space-4xl) 0 var(--space-2xl);
  position: relative;
  z-index: 1;
}

.tools-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.375rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--primary-300);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.tools-hero h1 {
  font-size: clamp(2.25rem, 5vw, var(--text-6xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.tools-hero p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

/* --- Search Bar --- */
.tools-search {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}

.tools-search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: var(--text-lg);
  pointer-events: none;
}

.tools-search input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: var(--text-base);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.tools-search input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15), var(--shadow-lg);
  background: var(--glass-bg-hover);
}

.tools-search input::placeholder {
  color: var(--text-tertiary);
}

/* --- Filter Tabs --- */
.tools-filters {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) 0 var(--space-lg);
}

.filter-tabs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.filter-tab {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.filter-tab:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
  border-color: var(--glass-border);
}

.filter-tab.active {
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.25);
}

/* --- Tools Grid --- */
.tools-grid-section {
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-4xl);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.tools-count {
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-xl);
}

.tools-count span {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Tool Card --- */
.tool-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tool-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--border-default);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--shadow-glow-primary);
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tool-card-icon.writing { background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.2); }
.tool-card-icon.translation { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.2); }
.tool-card-icon.code { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.2); }
.tool-card-icon.image { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.2); }
.tool-card-icon.data { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.2); }
.tool-card-icon.productivity { background: rgba(99, 102, 241, 0.15); border: 1px solid rgba(99, 102, 241, 0.2); }

.tool-card-badges {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.badge-popular {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning-400);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-new {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success-400);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.badge-pro {
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.badge-category {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-300);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.tool-card-body h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.tool-card-body p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.tool-card-uses {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.tool-card-uses svg {
  width: 14px;
  height: 14px;
}

.tool-card-action {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-400);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all var(--transition-fast);
}

.tool-card:hover .tool-card-action {
  color: var(--primary-300);
  gap: var(--space-sm);
}

/* Card hidden state for filtering */
.tool-card.hidden {
  display: none;
}

.tool-card.fade-out {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
}

/* No results */
.tools-no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  color: var(--text-secondary);
}

.tools-no-results .no-results-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.tools-no-results h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

/* =========================================================
   INDIVIDUAL TOOL PAGES
   ========================================================= */

/* --- Tool Page Header --- */
.tool-page-header {
  position: relative;
  z-index: 1;
  padding: var(--space-3xl) 0 var(--space-xl);
}

.tool-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
}

.tool-breadcrumb a {
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.tool-breadcrumb a:hover {
  color: var(--primary-400);
}

.tool-breadcrumb .separator {
  opacity: 0.4;
}

.tool-title-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.tool-title-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.tool-title-row h1 {
  font-size: clamp(1.75rem, 3.5vw, var(--text-4xl));
  font-weight: 800;
  letter-spacing: -0.02em;
}

.tool-page-header .tool-desc {
  color: var(--text-secondary);
  font-size: var(--text-base);
  max-width: 600px;
  line-height: 1.6;
}

/* --- Two-Panel Layout --- */
.tool-workspace {
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-3xl);
}

.tool-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.tool-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

.tool-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}

.tool-panel-header h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.tool-panel-actions {
  display: flex;
  gap: var(--space-sm);
}

.tool-panel-actions button {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  font-size: var(--text-sm);
}

.tool-panel-actions button:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  border-color: var(--border-default);
}

/* --- Form Controls --- */
.tool-form-group {
  margin-bottom: var(--space-lg);
}

.tool-form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.tool-select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-sm);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b6b80' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  transition: all var(--transition-base);
}

.tool-select:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.tool-textarea {
  width: 100%;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: var(--text-sm);
  resize: vertical;
  min-height: 150px;
  font-family: inherit;
  line-height: 1.6;
  transition: all var(--transition-base);
}

.tool-textarea:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.tool-textarea::placeholder {
  color: var(--text-tertiary);
}

.tool-textarea-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* Slider / Range */
.tool-range-group {
  margin-bottom: var(--space-lg);
}

.tool-range-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.tool-range-header label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.tool-range-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-400);
  font-family: var(--font-mono);
}

.tool-range {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

.tool-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
  transition: box-shadow var(--transition-fast);
}

.tool-range::-webkit-slider-thumb:hover {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.tool-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

/* --- Generate Button --- */
.tool-generate-btn {
  width: 100%;
  padding: 1rem 2rem;
  font-size: var(--text-base);
  font-weight: 700;
  border-radius: var(--radius-xl);
  background: var(--gradient-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow-primary);
  position: relative;
  overflow: hidden;
}

.tool-generate-btn:hover {
  background: var(--gradient-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
}

.tool-generate-btn:active {
  transform: translateY(0);
}

.tool-generate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.tool-generate-btn .btn-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}

.tool-generate-btn.loading .btn-spinner {
  display: block;
}

.tool-generate-btn.loading .btn-text {
  opacity: 0.7;
}

/* --- Usage Counter --- */
.tool-usage {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-align: center;
}

.tool-usage-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.tool-usage-text span {
  font-weight: 700;
  color: var(--primary-400);
}

.tool-usage-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.tool-usage-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* --- Output Panel --- */
.tool-output {
  min-height: 300px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--text-primary);
  overflow-y: auto;
  max-height: 500px;
}

.tool-output.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-style: italic;
}

.tool-output-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.tool-output-watermark {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-align: center;
  margin-top: var(--space-md);
  opacity: 0.6;
}

/* --- Typing Cursor Animation --- */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--primary-400);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink-cursor 0.8s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --- Output Area (Writer / general tool output) --- */
.output-area {
  min-height: 320px;
  max-height: 520px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow-y: auto;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--text-primary);
  transition: border-color var(--transition-base);
  scrollbar-width: thin;
  scrollbar-color: var(--bg-elevated) transparent;
}

.output-area::-webkit-scrollbar { width: 6px; }
.output-area::-webkit-scrollbar-track { background: transparent; }
.output-area::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 3px; }

.output-area.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.output-placeholder {
  text-align: center;
  color: var(--text-tertiary);
  padding: var(--space-2xl);
}

.output-placeholder-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.output-placeholder p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin: var(--space-xs) 0;
}

/* Generating state */
.output-generating {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  padding: var(--space-lg);
}

.spinner-inline {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-default);
  border-top-color: var(--primary-400);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

/* Output meta bar */
.output-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.output-watermark {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  opacity: 0.5;
}

/* Output actions (copy/download/clear) */
.output-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.output-actions button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* --- Usage Counter (Writer page style) --- */
.usage-counter {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.usage-counter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.usage-label { font-weight: 500; }

.usage-numbers {
  display: flex;
  align-items: center;
  gap: 3px;
}

.usage-numbers strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--primary-400);
}

.usage-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.usage-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

.usage-note {
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-align: center;
}

.usage-note a {
  color: var(--primary-400);
  font-weight: 600;
}

.usage-note a:hover { color: var(--primary-300); }

/* --- Generate btn loading states --- */
.tool-generate-btn .btn-loading { display: none; align-items: center; gap: var(--space-sm); }
.tool-generate-btn.loading .btn-text { display: none; }
.tool-generate-btn.loading .btn-loading { display: flex; }

/* --- Input footer (char counter) --- */
.input-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.input-hint { opacity: 0.7; }
.char-count { font-family: var(--font-mono); }
.input-required { color: var(--error-400); margin-left: 2px; }
.input-optional { color: var(--text-tertiary); font-size: 0.85em; margin-left: var(--space-xs); }

/* Range labels */
.range-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* Tool panel title */
.tool-panel-title {
  font-size: var(--text-base);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-primary);
}

/* Tool page title row */
.tool-page-title {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.tool-page-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.tool-page-badges {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
  margin-left: auto;
}

/* Breadcrumb */
.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--text-tertiary); transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--primary-400); }
.breadcrumb [aria-current="page"] { color: var(--text-primary); font-weight: 500; }

/* Tool upgrade banner */
.tool-upgrade-banner {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) 0 var(--space-3xl);
}

.tool-upgrade-inner {
  background: var(--glass-bg);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl) var(--space-3xl);
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.tool-upgrade-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.tool-upgrade-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
}

.tool-upgrade-text { flex: 1; }
.tool-upgrade-text h2 { font-size: var(--text-xl); margin-bottom: var(--space-sm); }
.tool-upgrade-text p { color: var(--text-secondary); font-size: var(--text-sm); }

/* Related tool card */
.related-tool-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.related-tool-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--primary-500);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-primary);
}

.related-tool-icon { font-size: 1.5rem; flex-shrink: 0; }

.related-tool-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: 2px;
}

.related-tool-card p {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.related-tool-arrow {
  margin-left: auto;
  color: var(--text-tertiary);
  font-size: var(--text-lg);
  transition: all var(--transition-fast);
}

.related-tool-card:hover .related-tool-arrow {
  color: var(--primary-400);
  transform: translateX(4px);
}

/* Tool toast (existing but ensure styles) */
.tool-toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  backdrop-filter: blur(20px);
  font-size: var(--text-sm);
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.tool-toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}


/* --- CTA Banner --- */
.tool-cta-banner {
  position: relative;
  z-index: 1;
  padding: 0 0 var(--space-3xl);
}

.cta-upgrade {
  background: var(--glass-bg);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl) var(--space-3xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.cta-upgrade::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.cta-upgrade-content h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.cta-upgrade-content p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

/* --- Related Tools --- */
.related-tools {
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-4xl);
}

.related-tools h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-xl);
}

.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* =========================================================
   TRANSLATOR - Special Layout
   ========================================================= */

.translator-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.translator-swap {
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  margin-top: 3.5rem;
}

.translator-swap-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: var(--text-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.translator-swap-btn:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--primary-500);
  color: var(--primary-400);
  transform: rotate(180deg);
  box-shadow: var(--shadow-glow-primary);
}

.translator-bottom {
  margin-top: var(--space-xl);
}

.translator-quality {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.translator-quality .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success-400);
}

.auto-detect-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-base);
}

.toggle-switch.active {
  background: var(--primary-600);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition-base);
}

.toggle-switch.active::after {
  transform: translateX(16px);
}

.translator-input-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.translator-input-actions button {
  padding: 0.375rem 0.875rem;
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.translator-input-actions button:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

/* =========================================================
   CODE GENERATOR - Special Styles
   ========================================================= */

/* Language Pills */
.lang-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.lang-pill {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.lang-pill:hover {
  border-color: var(--border-default);
  color: var(--text-primary);
  background: var(--glass-bg-hover);
}

.lang-pill.active {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--success-400);
}

/* Task Type Tabs */
.task-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  padding: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.task-tab {
  flex: 1;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
}

.task-tab:hover {
  color: var(--text-primary);
}

.task-tab.active {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Code Output */
.code-output-wrapper {
  background: #0d1117;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.code-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-output-lang {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--success-400);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.code-output-lang .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success-400);
}

.code-output-actions {
  display: flex;
  gap: var(--space-sm);
}

.code-output-actions button {
  padding: 0.25rem 0.625rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-output-actions button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.code-output-body {
  display: flex;
  min-height: 300px;
  max-height: 500px;
  overflow-y: auto;
}

.code-line-numbers {
  padding: 1rem 0;
  text-align: right;
  user-select: none;
  min-width: 45px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
}

.code-line-numbers span {
  display: block;
  padding: 0 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.2);
}

.code-content {
  padding: 1rem 1.25rem;
  flex: 1;
  overflow-x: auto;
}

.code-content pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: #e6edf3;
  white-space: pre;
}

/* Syntax Highlighting Colors */
.code-content .kw { color: #ff7b72; }
.code-content .fn { color: #d2a8ff; }
.code-content .str { color: #a5d6ff; }
.code-content .cm { color: #8b949e; }
.code-content .num { color: #79c0ff; }
.code-content .op { color: #ff7b72; }
.code-content .var { color: #ffa657; }
.code-content .type { color: #7ee787; }
.code-content .dec { color: #ffa657; }
.code-content .builtin { color: #79c0ff; }

.code-output-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tool-panels {
    grid-template-columns: 1fr;
  }

  .translator-layout {
    grid-template-columns: 1fr;
  }

  .translator-swap {
    margin-top: 0;
    justify-self: center;
  }

  .translator-swap-btn {
    transform: rotate(90deg);
  }

  .translator-swap-btn:hover {
    transform: rotate(270deg);
  }

  .related-tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cta-upgrade {
    flex-direction: column;
    text-align: center;
    padding: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .tools-hero {
    padding: var(--space-2xl) 0 var(--space-xl);
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .filter-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-sm);
  }

  .filter-tabs::-webkit-scrollbar {
    display: none;
  }

  .tool-panel {
    padding: var(--space-lg);
  }

  .related-tools-grid {
    grid-template-columns: 1fr;
  }

  .cta-upgrade {
    padding: var(--space-xl);
  }

  .task-tabs {
    flex-wrap: wrap;
  }

  .task-tab {
    flex: 0 0 auto;
  }

  .lang-pills {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-sm);
  }

  .lang-pills::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 480px) {
  .tool-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .tool-panel-actions {
    flex-wrap: wrap;
  }

  .code-output-body {
    min-height: 250px;
  }
}

/* --- Loading Overlay --- */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  border-radius: var(--radius-lg);
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-overlay .spinner {
  width: 32px;
  height: 32px;
}

.loading-overlay p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* --- Toast Notification --- */
.tool-toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-base);
  font-size: var(--text-sm);
}

.tool-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.tool-toast .toast-icon {
  font-size: var(--text-lg);
}

/* =========================================================
   TOOLS PAGE — MISSING CLASS ALIASES & SUPPLEMENTS
   (classes used in tools.html that weren't in CSS)
   ========================================================= */

/* Tools section wrapper */
.tools-section {
  position: relative;
  z-index: 1;
}

/* Tools hero orbs */
.tools-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.tools-hero-orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(99, 102, 241, 0.12);
  top: -100px;
  left: -100px;
}

.tools-hero-orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(6, 182, 212, 0.08);
  top: -50px;
  right: -80px;
}

/* Tools hero content */
.tools-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.tools-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

/* Search wrapper */
.tools-search-wrapper {
  position: relative;
  max-width: 520px;
  margin: var(--space-2xl) auto 0;
}

.tools-search-inner {
  position: relative;
}

.tools-search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
  z-index: 1;
}

/* Search input override (element name conflicts with class) */
.tools-search-inner .tools-search,
input.tools-search {
  width: 100%;
  padding: 1rem 3rem 1rem 3.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: var(--text-base);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.tools-search-inner .tools-search:focus,
input.tools-search:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15), var(--shadow-lg);
  background: var(--glass-bg-hover);
}

.tools-search-kbd {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  pointer-events: none;
}

/* Filter count */
.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-300);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  margin-left: var(--space-xs);
}

/* Tool icon variants for card list */
.tool-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.tool-icon-writing  { background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.2); }
.tool-icon-translation { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.2); }
.tool-icon-code     { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.2); }
.tool-icon-image    { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.2); }
.tool-icon-data     { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.2); }
.tool-icon-productivity { background: rgba(99, 102, 241, 0.15); border: 1px solid rgba(99, 102, 241, 0.2); }

/* Tool badges row */
.tool-badges {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  align-items: flex-start;
}

/* Tool name and description */
.tool-name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-sm) 0 var(--space-xs);
}

.tool-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

/* Tool meta (usage + status) */
.tool-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.tool-usage { display: flex; align-items: center; gap: var(--space-xs); }
.tool-status { display: flex; align-items: center; gap: var(--space-xs); }

/* Tool CTA button inside card */
.tool-cta {
  margin-top: var(--space-md);
  width: 100%;
  justify-content: center;
  font-size: var(--text-sm);
}

/* Tool card with flex-col layout for proper spacing */
.tool-card {
  display: flex;
  flex-direction: column;
}

/* filter-tabs-wrapper */
.filter-tabs-wrapper {
  margin-bottom: var(--space-xl);
}

/* tools-search as a section (in hero) */
.tools-search:not(input) {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}