/* ==========================================================================
   XESTUS TOOLS PLATFORM - CORE STYLESHEET
   Supports 3 Themes: Night (Default), Day, and Eye Protection
   ========================================================================== */

:root {
  --tools-font-mono: "Fira Code", "Cascadia Code", "Consolas", "Monaco", "Courier New", monospace;
  --tools-code-bg: #0b1120;
  --tools-code-text: #f1f5f9;
  --tools-code-border: rgba(0, 191, 255, 0.2);
  --tools-gutter-bg: #070d19;
  --tools-gutter-text: #64748b;
  --tools-diff-add-bg: rgba(0, 255, 136, 0.15);
  --tools-diff-add-text: #00ff88;
  --tools-diff-del-bg: rgba(255, 77, 106, 0.15);
  --tools-diff-del-text: #ff4d6a;
}

:root[data-theme="day"] {
  --tools-code-bg: #f8fafc;
  --tools-code-text: #0f172a;
  --tools-code-border: #cbd5e1;
  --tools-gutter-bg: #f1f5f9;
  --tools-gutter-text: #94a3b8;
  --tools-diff-add-bg: rgba(16, 185, 129, 0.15);
  --tools-diff-add-text: #047857;
  --tools-diff-del-bg: rgba(239, 68, 68, 0.15);
  --tools-diff-del-text: #b91c1c;
}

:root[data-theme="eye-protect"] {
  --tools-code-bg: #ede4d5;
  --tools-code-text: #2d261e;
  --tools-code-border: #d4c7b5;
  --tools-gutter-bg: #e4dac9;
  --tools-gutter-text: #7c7267;
  --tools-diff-add-bg: rgba(22, 101, 52, 0.15);
  --tools-diff-add-text: #15803d;
  --tools-diff-del-bg: rgba(185, 28, 28, 0.15);
  --tools-diff-del-text: #991b1b;
}

/* Tools Container & Layout */
.tools-app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 24px 60px;
  min-height: calc(100vh - 200px);
}

/* Breadcrumbs */
.tools-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tools-breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.tools-breadcrumbs a:hover {
  color: var(--cyan-bright);
}

.tools-breadcrumbs .breadcrumb-sep {
  color: var(--text-dim);
}

.tools-breadcrumbs .breadcrumb-current {
  color: var(--cyan-bright);
  font-weight: 600;
}

/* Tool Header */
.tool-header {
  margin-bottom: 32px;
}

.tool-badge-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tool-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(0, 191, 255, 0.1);
  border: 1px solid var(--cyan-border);
  color: var(--cyan-bright);
  font-size: 12px;
  font-weight: 600;
}

.tool-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  color: #00ff88;
  font-size: 12px;
  font-weight: 600;
}

:root[data-theme="day"] .tool-privacy-badge,
:root[data-theme="eye-protect"] .tool-privacy-badge {
  color: #059669;
  background: rgba(5, 150, 105, 0.1);
  border-color: rgba(5, 150, 105, 0.3);
}

.tool-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.tool-description {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 800px;
  line-height: 1.6;
}

/* Tool Workspace Card */
.tool-workspace {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 40px;
  transition: border-color var(--transition-normal);
}

/* Action Bars & Controls */
.tool-action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tool-options-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tool-btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-primary);
}

.tool-btn svg {
  width: 15px;
  height: 15px;
}

.tool-btn:hover {
  background: var(--cyan-subtle);
  border-color: var(--cyan-border);
  color: var(--cyan-bright);
}

.tool-btn-primary {
  background: linear-gradient(135deg, var(--cyan-primary), var(--cyan-dark));
  border-color: var(--cyan-bright);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--cyan-glow);
}

.tool-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--cyan-glow);
  color: #ffffff;
}

.tool-btn-secondary {
  background: var(--bg-surface);
  color: var(--text-secondary);
}

.tool-btn-secondary:hover {
  color: var(--text-primary);
}

.tool-btn-danger {
  color: #ff4d6a;
}

.tool-btn-danger:hover {
  background: rgba(255, 77, 106, 0.1);
  border-color: rgba(255, 77, 106, 0.4);
  color: #ff4d6a;
}

/* Tool Select / Input Controls */
.tool-select,
.tool-input {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.tool-select:focus,
.tool-input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 2px var(--cyan-subtle);
}

.tool-toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.tool-toggle-label input[type="checkbox"] {
  accent-color: var(--cyan-primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

/* Dual Editor Grid (Input / Output) */
.tool-editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 868px) {
  .tool-editor-grid {
    grid-template-columns: 1fr;
  }
}

.tool-editor-pane {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0 4px;
}

.tool-pane-stats {
  font-size: 11.5px;
  color: var(--text-muted);
}

.tool-textarea {
  width: 100%;
  height: 380px;
  background: var(--tools-code-bg);
  border: 1px solid var(--tools-code-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  color: var(--tools-code-text);
  font-family: var(--tools-font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  tab-size: 2;
  white-space: pre;
  overflow: auto;
  box-sizing: border-box;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-textarea:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 2px var(--cyan-subtle);
}

.tool-textarea[readonly] {
  background: var(--tools-code-bg);
  cursor: text;
}

/* Status / Alert Banner */
.tool-status-box {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  display: none;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.tool-status-box.show {
  display: flex;
  animation: fadeIn 0.25s ease forwards;
}

.tool-status-box.success {
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  color: #00ff88;
}

.tool-status-box.error {
  background: rgba(255, 77, 106, 0.1);
  border: 1px solid rgba(255, 77, 106, 0.3);
  color: #ff4d6a;
}

:root[data-theme="day"] .tool-status-box.success,
:root[data-theme="eye-protect"] .tool-status-box.success {
  color: #047857;
}

:root[data-theme="day"] .tool-status-box.error,
:root[data-theme="eye-protect"] .tool-status-box.error {
  color: #b91c1c;
}

/* Diff Viewer Component */
.diff-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background: var(--tools-code-bg);
  border: 1px solid var(--tools-code-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  font-family: var(--tools-font-mono);
  font-size: 13px;
  max-height: 480px;
  overflow: auto;
}

@media (max-width: 768px) {
  .diff-container {
    grid-template-columns: 1fr;
  }
}

.diff-line {
  padding: 2px 8px;
  white-space: pre-wrap;
  word-break: break-all;
  border-radius: 3px;
}

.diff-line.added {
  background: var(--tools-diff-add-bg);
  color: var(--tools-diff-add-text);
}

.diff-line.removed {
  background: var(--tools-diff-del-bg);
  color: var(--tools-diff-del-text);
}

/* Information & Guide Sections */
.tool-info-section {
  margin-top: 40px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 40px;
}

.tool-info-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

@media (max-width: 900px) {
  .tool-info-grid {
    grid-template-columns: 1fr;
  }
}

.tool-guide-content h2,
.tool-guide-content h3 {
  color: var(--text-primary);
  margin: 24px 0 12px;
}

.tool-guide-content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  font-size: 15px;
}

.tool-guide-content ol,
.tool-guide-content ul {
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 24px;
  margin-bottom: 20px;
}

/* Related Tools Grid */
.related-tools-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 24px;
}

.related-tools-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.related-tools-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-tool-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.related-tool-item:hover {
  border-color: var(--cyan-border);
  transform: translateX(3px);
  color: var(--cyan-bright);
}

/* --- "My XESTUS" Action Buttons (Star & Share) --- */
.tool-meta-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-fav-star {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-fav-star:hover {
  border-color: var(--stitch-yellow, #ffc107);
  color: var(--text-primary);
}

.btn-fav-star.is-favourite {
  background: rgba(255, 193, 7, 0.12);
  border-color: rgba(255, 193, 7, 0.4);
  color: var(--stitch-yellow, #ffc107);
}

.btn-share-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-share-tool:hover {
  border-color: var(--cyan-border);
  color: var(--cyan-bright);
}

/* --- Calculator & Form Grid System --- */
.calc-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 868px) {
  .calc-grid-2col {
    grid-template-columns: 1fr;
  }
}

.calc-form-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.calc-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-field-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

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

.calc-input-prefix,
.calc-input-suffix {
  position: absolute;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 600;
}

.calc-input-prefix { left: 14px; }
.calc-input-suffix { right: 14px; }

.calc-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
}

.calc-input.has-prefix { padding-left: 36px; }
.calc-input.has-suffix { padding-right: 36px; }

.calc-input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-subtle);
}

.calc-rate-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.calc-rate-btn {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-rate-btn:hover,
.calc-rate-btn.active {
  background: var(--cyan-subtle);
  border-color: var(--cyan-border);
  color: var(--cyan-bright);
}

.calc-result-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}

.calc-summary-hero {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0, 191, 255, 0.08), rgba(0, 255, 136, 0.05));
  border: 1px solid var(--cyan-border);
}

.calc-summary-hero .summary-lbl {
  font-size: 12.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.calc-summary-hero .summary-val {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  color: var(--cyan-bright);
}

.calc-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
}

.calc-breakdown-row .row-lbl { color: var(--text-secondary); }
.calc-breakdown-row .row-val { font-weight: 700; color: var(--text-primary); }

/* --- Word Counter Stat Grid --- */
.word-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.word-stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.word-stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--cyan-bright);
}

.word-stat-label {
  font-size: 11.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

/* --- QR & Image Preview Box --- */
.qr-preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  gap: 16px;
}

.qr-canvas-box {
  padding: 16px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* --- Drag & Drop File Zone --- */
.file-dropzone {
  border: 2px dashed var(--cyan-border);
  border-radius: var(--radius-xl);
  padding: 36px 20px;
  text-align: center;
  background: rgba(0, 191, 255, 0.03);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 20px;
}

.file-dropzone:hover,
.file-dropzone.drag-over {
  border-color: var(--cyan-bright);
  background: rgba(0, 191, 255, 0.08);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  color: var(--cyan-bright);
  margin-bottom: 12px;
}

/* --- Tools Directory Hub Tabs --- */
.tools-nav-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.tools-nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tools-nav-tab:hover,
.tools-nav-tab.active {
  background: linear-gradient(135deg, var(--cyan-primary), var(--cyan-dark));
  border-color: var(--cyan-bright);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--cyan-glow);
}

.tools-hub-hero {
  text-align: center;
  padding: 40px 0 20px;
}

.tools-search-box {
  max-width: 600px;
  margin: 28px auto 0;
  position: relative;
}

.tools-search-input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  border-radius: var(--radius-full);
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.tools-search-input:focus {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 0 3px var(--cyan-subtle);
}

.tools-search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 20px;
  height: 20px;
}

.tools-categories-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.tools-filter-pill {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tools-filter-pill:hover {
  border-color: var(--cyan-border);
  color: var(--text-primary);
}

.tools-filter-pill.active {
  background: var(--cyan-primary);
  border-color: var(--cyan-primary);
  color: #ffffff;
}

.tools-catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 24px;
  margin-top: 30px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-card-hover);
}

.tool-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.tool-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(0, 191, 255, 0.1);
  border: 1px solid var(--cyan-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-bright);
}

.tool-card-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(0, 255, 136, 0.1);
  color: #00ff88;
  border: 1px solid rgba(0, 255, 136, 0.3);
}

.tool-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.tool-card-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tool-card-action {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan-bright);
  font-size: 13px;
  font-weight: 600;
}

/* ==========================================================================
   RESPONSIVE LAYOUT ENGINE (Mobile, Tablet, Fold Screen Optimization)
   ========================================================================== */
@media (max-width: 1024px) {
  .tools-app-container {
    padding: 84px 18px 48px;
  }

  .tool-workspace {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .tools-app-container {
    padding: 72px 14px 40px;
  }

  .tool-header {
    margin-bottom: 22px;
  }

  .tool-title {
    font-size: clamp(22px, 6vw, 30px);
  }

  .tool-description {
    font-size: 14.5px;
  }

  .tool-workspace {
    padding: 16px 14px;
    border-radius: var(--radius-lg);
  }

  .tool-action-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .tool-options-group,
  .tool-btn-group {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .tool-btn {
    flex: 1 1 calc(50% - 4px);
    min-height: 42px;
    justify-content: center;
    font-size: 12.5px;
    padding: 8px 12px;
    box-sizing: border-box;
  }

  .tool-btn-primary {
    flex: 1 1 100%;
  }

  .tool-toggle-label {
    width: 100%;
    font-size: 12.5px;
    padding: 4px 0;
  }

  .tool-textarea {
    height: 260px;
    padding: 12px;
    font-size: 13px;
  }

  .tools-categories-filter {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 8px;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .tools-filter-pill {
    flex-shrink: 0;
    white-space: nowrap;
  }

  .tools-catalog-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tool-info-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* Specific Interactive Components */
  .diff-split-view,
  .diff-container {
    grid-template-columns: 1fr !important;
  }

  .timestamp-converter-grid {
    grid-template-columns: 1fr !important;
  }

  .regex-pattern-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .regex-flags-wrap {
    flex-wrap: wrap;
    gap: 6px;
  }

  .password-display-card {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 480px) {
  .tools-app-container {
    padding: 68px 10px 32px;
  }

  .tool-workspace {
    padding: 14px 10px;
  }

  .tool-btn {
    flex: 1 1 100%;
    width: 100%;
  }

  .tool-badge-row {
    gap: 6px;
  }

  .tool-category-badge,
  .tool-privacy-badge {
    font-size: 11px;
    padding: 3px 8px;
  }

  .tools-search-box {
    margin-top: 16px;
  }

  .tools-search-input {
    font-size: 13.5px;
    padding: 12px 16px 12px 42px;
  }
}

@media (max-width: 360px) {
  .tools-app-container {
    padding: 62px 8px 24px;
  }

  .tool-title {
    font-size: 20px;
  }

  .tool-card {
    padding: 16px 12px;
  }

  .tool-textarea {
    height: 220px;
    font-size: 12px;
  }
}



/* ==========================================================================
   XESTUS TOOLS — MODERN SLEEK HEADER, INSTANT-ACTION WORKSPACE & CLEAN UX
   Eliminates all unstyled mobile drawer clutter and broken headings.
   Puts the interactive workspace front and center with luxury dark SaaS styling.
   ========================================================================== */

/* 1. Global Reset & Body for Tool Pages */
body {
    background: #060b14 !important;
    color: #cbd5e1 !important;
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
    margin: 0 !important;
    padding: 0 !important;
    min-height: 100vh !important;
}

/* 2. Site Header for Tool Pages */
.site-header {
    position: sticky !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 1000 !important;
    background: rgba(8, 14, 28, 0.94) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    border-bottom: 1px solid rgba(0, 191, 255, 0.22) !important;
    padding: 10px 0 !important;
    box-sizing: border-box !important;
}

.header-container {
    max-width: 1280px !important;
    margin: 0 auto !important;
    padding: 0 20px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    height: 48px !important;
    box-sizing: border-box !important;
}

.logo-link {
    display: inline-flex !important;
    align-items: center !important;
    text-decoration: none !important;
}

.logo-text {
    font-size: 20px !important;
    font-weight: 800 !important;
    color: #ffffff !important;
    letter-spacing: -0.5px !important;
}

.logo-dot {
    color: #00bfff !important;
}

.desktop-nav {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

.nav-item {
    color: #94a3b8 !important;
    text-decoration: none !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    padding: 6px 12px !important;
    border-radius: 8px !important;
    transition: all 0.2s ease !important;
}

.nav-item:hover,
.nav-item.active {
    color: #38d6ff !important;
    background: rgba(0, 191, 255, 0.1) !important;
}

.header-actions {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
}

.btn-icon {
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    color: #e2e8f0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.btn-icon:hover {
    border-color: #38d6ff !important;
    color: #38d6ff !important;
    background: rgba(0, 191, 255, 0.1) !important;
}

.btn-ghost-sm {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    height: 36px !important;
    padding: 0 12px !important;
    border-radius: 8px !important;
    background: rgba(0, 191, 255, 0.12) !important;
    border: 1px solid rgba(0, 191, 255, 0.35) !important;
    color: #38d6ff !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    transition: all 0.2s ease !important;
}

.btn-ghost-sm:hover {
    background: #00bfff !important;
    color: #070c18 !important;
    box-shadow: 0 4px 14px rgba(0, 191, 255, 0.4) !important;
}

@media (min-width: 1025px) {
    .mobile-drawer,
    .mobile-only {
        display: none !important;
    }
}

@media (max-width: 1024px) {
    .desktop-nav,
    .hide-mobile,
    .desktop-app-strip,
    .btn-nav-cta,
    .btn-outlier-nav {
        display: none !important;
    }
    .mobile-only {
        display: block !important;
    }
}

/* 3. Main Tool Page Layout */
.tool-page-main {
    max-width: 1200px !important;
    margin: 0 auto !important;
    padding: 24px 20px 60px !important;
    box-sizing: border-box !important;
}

.tool-page-header {
    margin-bottom: 20px !important;
}

.tool-breadcrumb {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    font-size: 12.5px !important;
    color: #64748b !important;
    margin-bottom: 12px !important;
    flex-wrap: wrap !important;
}

.tool-breadcrumb a {
    color: #94a3b8 !important;
    text-decoration: none !important;
}

.tool-breadcrumb a:hover {
    color: #38d6ff !important;
}

.tool-breadcrumb .sep {
    color: #475569 !important;
}

.tool-breadcrumb .current {
    color: #38d6ff !important;
    font-weight: 600 !important;
}

.tool-header-flex {
    display: flex !important;
    align-items: flex-start !important;
    justify-content: space-between !important;
    gap: 20px !important;
    flex-wrap: wrap !important;
}

.tool-title-group {
    flex: 1 1 500px !important;
}

.tool-badge-pill {
    display: inline-flex !important;
    align-items: center !important;
    gap: 5px !important;
    padding: 4px 10px !important;
    border-radius: 999px !important;
    background: rgba(0, 191, 255, 0.12) !important;
    border: 1px solid rgba(0, 191, 255, 0.3) !important;
    color: #38d6ff !important;
    font-size: 11.5px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    margin-bottom: 8px !important;
}

.tool-main-heading {
    font-size: clamp(24px, 3.5vw, 32px) !important;
    font-weight: 800 !important;
    color: #ffffff !important;
    margin: 0 0 6px 0 !important;
    letter-spacing: -0.5px !important;
}

.tool-main-subtitle {
    font-size: 14px !important;
    color: #cbd5e1 !important;
    margin: 0 !important;
    line-height: 1.5 !important;
    max-width: 680px !important;
}

.tool-actions-bar {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
}

.btn-tool-action {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    height: 34px !important;
    padding: 0 12px !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    color: #e2e8f0 !important;
    font-size: 12.5px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.btn-tool-action:hover {
    border-color: #38d6ff !important;
    color: #38d6ff !important;
    background: rgba(0, 191, 255, 0.1) !important;
}

/* Privacy Guarantee Banner: Clean, Compact Pill */
.privacy-guarantee-banner {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 6px 14px !important;
    border-radius: 8px !important;
    background: rgba(0, 255, 136, 0.08) !important;
    border: 1px solid rgba(0, 255, 136, 0.25) !important;
    color: #4ade80 !important;
    font-size: 12px !important;
    margin-bottom: 20px !important;
    box-sizing: border-box !important;
}

.privacy-guarantee-banner i,
.privacy-guarantee-banner svg {
    width: 14px !important;
    height: 14px !important;
    color: #4ade80 !important;
    flex-shrink: 0 !important;
}

/* 4. Interactive Tool Workspace Card */
.tool-workspace {
    background: #0b1329 !important;
    border: 1px solid rgba(0, 191, 255, 0.28) !important;
    border-radius: 14px !important;
    padding: 24px !important;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.55), 0 0 20px rgba(0, 191, 255, 0.1) !important;
    margin-bottom: 30px !important;
    box-sizing: border-box !important;
    position: relative !important;
}

/* Day Mode Tool Page Overrides */
[data-theme="day"] body {
    background: #f8fafc !important;
    color: #334155 !important;
}

[data-theme="day"] .site-header {
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom-color: #e2e8f0 !important;
}

[data-theme="day"] .logo-text {
    color: #0f172a !important;
}

[data-theme="day"] .nav-item {
    color: #475569 !important;
}

[data-theme="day"] .nav-item:hover,
[data-theme="day"] .nav-item.active {
    color: #0284c7 !important;
    background: #e0f2fe !important;
}

[data-theme="day"] .tool-main-heading {
    color: #0f172a !important;
}

[data-theme="day"] .tool-main-subtitle {
    color: #475569 !important;
}

[data-theme="day"] .tool-workspace {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08) !important;
}

/* --- Universal Tool Workspace Utilities & Layout Classes --- */
.calc-grid-2 {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
    gap: 20px !important;
    margin-bottom: 16px !important;
}

.calc-input-group {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
}

.calc-label {
    font-size: 13.5px !important;
    font-weight: 600 !important;
    color: var(--text-secondary, #cbd5e1) !important;
}

.input-with-affix {
    position: relative !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
}

.input-with-affix .affix {
    position: absolute !important;
    color: var(--text-muted, #94a3b8) !important;
    font-weight: 700 !important;
    font-size: 14px !important;
    pointer-events: none !important;
}

.input-with-affix .affix:first-child {
    left: 14px !important;
}

.input-with-affix .affix:last-child {
    right: 14px !important;
}

.input-with-affix input:has(+ .affix) {
    padding-right: 36px !important;
}

.input-with-affix .affix + input {
    padding-left: 36px !important;
}

.calc-slider {
    width: 100% !important;
    margin-top: 6px !important;
    accent-color: var(--cyan-primary, #00bfff) !important;
    cursor: pointer !important;
}

.calc-presets {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    flex-wrap: wrap !important;
    margin-bottom: 20px !important;
    padding-bottom: 16px !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.preset-label {
    font-size: 12.5px !important;
    font-weight: 600 !important;
    color: var(--text-muted, #94a3b8) !important;
}

.btn-preset {
    padding: 6px 12px !important;
    border-radius: 20px !important;
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    color: var(--text-secondary, #cbd5e1) !important;
    font-size: 12px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.btn-preset:hover,
.btn-preset.active {
    background: rgba(0, 191, 255, 0.15) !important;
    border-color: #00bfff !important;
    color: #ffffff !important;
}

.stat-tiles-row {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) !important;
    gap: 14px !important;
}

.stat-tile {
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    border-radius: 10px !important;
    padding: 14px !important;
    text-align: center !important;
}

.stat-tile .tile-label {
    font-size: 11.5px !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    color: var(--text-muted, #94a3b8) !important;
    margin-bottom: 6px !important;
}

.stat-tile .tile-val {
    font-size: 18px !important;
    font-weight: 700 !important;
    font-family: 'JetBrains Mono', monospace !important;
}

.mode-toggle-group {
    display: inline-flex !important;
    background: rgba(255, 255, 255, 0.06) !important;
    border-radius: 8px !important;
    padding: 3px !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.mode-btn {
    padding: 6px 14px !important;
    border-radius: 6px !important;
    border: none !important;
    background: transparent !important;
    color: var(--text-secondary, #cbd5e1) !important;
    font-size: 12.5px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.mode-btn.active {
    background: #00bfff !important;
    color: #ffffff !important;
}

.tool-btn-row {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 12px !important;
    flex-wrap: wrap !important;
}

.btn-tool-primary {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 10px 20px !important;
    border-radius: 8px !important;
    background: linear-gradient(135deg, #00bfff, #0088cc) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    border: none !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 4px 14px rgba(0, 191, 255, 0.3) !important;
}

.btn-tool-primary:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 6px 20px rgba(0, 191, 255, 0.45) !important;
}

.btn-tool-secondary {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 10px 18px !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    color: var(--text-secondary, #cbd5e1) !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
}

.btn-tool-secondary:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: #ffffff !important;
}