/* ==========================================================================
   ToolsSuite - Modern CSS Design System & Architecture
   Compatible with Apache Shared Hosting & Pure Vanilla JS
   Includes Dark Mode, Responsive Layouts, Ad Slots, and Tool Components
   ========================================================================== */

:root {
  /* Color Palette - Light Theme */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-muted: #f1f5f9;
  --bg-accent: #e0f2fe;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --text-inverse: #ffffff;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: #eff6ff;
  --primary-border: #bfdbfe;

  --success: #10b981;
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;

  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;

  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;

  --border-color: #e2e8f0;
  --border-focus: #3b82f6;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.06);

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;

  --container-max: 1200px;
}

[data-theme="dark"] {
  --bg-body: #090d16;
  --bg-surface: #131b2e;
  --bg-surface-elevated: #1a243d;
  --bg-muted: #1e293b;
  --bg-accent: #1e3a8a;

  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-subtle: #94a3b8;
  --text-inverse: #0f172a;

  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-subtle: #172554;
  --primary-border: #1e40af;

  --success: #34d399;
  --success-bg: #064e3b;
  --success-border: #059669;

  --warning: #fbbf24;
  --warning-bg: #451a03;
  --warning-border: #78350f;

  --danger: #f87171;
  --danger-bg: #450a0a;
  --danger-border: #7f1d1d;

  --border-color: #27354f;
  --border-focus: #60a5fa;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.6);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 1.5rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
  text-decoration: none !important;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
  font-size: 1.1rem;
}

.brand-title {
  letter-spacing: -0.02em;
}

.brand-highlight {
  color: var(--primary);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
  background-color: var(--bg-muted);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-subtle);
  font-weight: 600;
}

/* Nav Dropdown */
.nav-dropdown-wrapper {
  position: relative;
}

.nav-dropdown-btn {
  background: transparent;
  border: none;
  font-family: inherit;
  cursor: pointer;
}

.dropdown-chevron {
  transition: transform var(--transition-fast);
  color: var(--text-subtle);
}

.nav-dropdown-wrapper:hover .dropdown-chevron,
.nav-dropdown-wrapper:focus-within .dropdown-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.35rem;
  min-width: 250px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  z-index: 1010;
  animation: fadeInDown 0.15s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-dropdown-wrapper:hover .nav-dropdown-menu,
.nav-dropdown-wrapper:focus-within .nav-dropdown-menu {
  display: flex;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--bg-muted);
}

.dropdown-item:hover .dropdown-item-title {
  color: var(--primary);
}

.dropdown-item-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-main);
  line-height: 1.25;
}

.dropdown-item-sub {
  font-size: 0.75rem;
  color: var(--text-subtle);
  line-height: 1.2;
}

.dropdown-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-all-tools {
  background-color: var(--primary-subtle);
  color: var(--primary);
  font-weight: 600;
  border: 1px solid var(--primary-border);
}

.nav-all-tools:hover {
  background-color: var(--primary);
  color: #ffffff;
}

.mobile-cat-header {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-subtle);
  padding: 0.25rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn, .mobile-menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover, .mobile-menu-btn:hover {
  background-color: var(--bg-muted);
  border-color: var(--primary-border);
}

.mobile-menu-btn {
  display: none;
}

/* Mobile Drawer */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  z-index: 9999;
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-content {
  background-color: var(--bg-surface);
  height: 100vh;
  width: 100%;
  max-width: 300px;
  padding: 1.5rem;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */
.breadcrumb-bar {
  padding: 0.85rem 0;
  background-color: transparent;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  gap: 0.5rem;
}

.breadcrumb-item a {
  color: var(--text-subtle);
  text-decoration: none;
}

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

.breadcrumb-separator {
  color: var(--border-color);
  user-select: none;
}

.breadcrumb-item.active {
  color: var(--text-main);
  font-weight: 500;
}

/* ==========================================================================
   Privacy Badge
   ========================================================================== */
.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

[data-theme="dark"] .privacy-badge {
  color: #6ee7b7;
}

/* ==========================================================================
   Page Headers & Hero
   ========================================================================== */
.page-hero {
  text-align: center;
  padding: 2rem 0 1.5rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

.tool-header {
  margin-bottom: 1.5rem;
}

.tool-h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.tool-intro {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 820px;
  line-height: 1.5;
}

/* ==========================================================================
   Ad Slots (Configurable & Layout-Shift-Proof)
   ========================================================================== */
.ad-slot {
  margin: 1.75rem auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-muted);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 1rem;
  color: var(--text-subtle);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.ad-slot-top {
  min-height: 100px;
  max-width: 970px;
}

.ad-slot-between {
  min-height: 120px;
  max-width: 850px;
}

.ad-slot-in-content {
  min-height: 250px;
  max-width: 728px;
}

.ad-slot-bottom {
  min-height: 120px;
  max-width: 970px;
  margin-bottom: 3rem;
}

.ad-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--text-subtle);
  margin-bottom: 0.5rem;
  user-select: none;
}

.ad-placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.ad-size-hint {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

/* ==========================================================================
   Cards & Tool Interfaces
   ========================================================================== */
.tool-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

/* Drag & Drop Zone */
.dropzone {
  border: 2px dashed var(--primary-border);
  background-color: var(--primary-subtle);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background-color: var(--bg-accent);
  transform: scale(1.005);
}

.dropzone-icon {
  font-size: 2.75rem;
  margin-bottom: 0.75rem;
}

.dropzone-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.dropzone-hint {
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Forms, Inputs, Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
  line-height: 1.5;
}

.input-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none !important;
  user-select: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--bg-muted);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--border-color);
}

.btn-danger {
  background-color: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger-border);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background-color: #059669;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1.0625rem;
}

.btn-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Stats / Result Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-box {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: transform var(--transition-fast);
}

.stat-box:hover {
  transform: translateY(-2px);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-subtle);
  margin-top: 0.25rem;
}

/* Tabs & Segmented Controls */
.tabs-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  padding: 0.65rem 1.15rem;
  border: none;
  background: none;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-subtle);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -4px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

/* Preset Chips */
.preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.chip {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip:hover, .chip.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

/* Range Slider */
.range-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--primary);
  height: 6px;
  background-color: var(--border-color);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

.range-badge {
  font-size: 0.875rem;
  font-weight: 700;
  background-color: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-md);
  min-width: 55px;
  text-align: center;
}

/* Alerts and Messages */
.alert {
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-danger {
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger);
}

.alert-warning {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning);
}

.alert-success {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success);
}

/* Progress bar */
.progress-bar-container {
  width: 100%;
  height: 10px;
  background-color: var(--bg-muted);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0.75rem 0;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--primary);
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background-color 0.3s ease;
}

.progress-bar-fill.warning {
  background-color: var(--warning);
}

.progress-bar-fill.danger {
  background-color: var(--danger);
}

/* ==========================================================================
   Tools Directory / Homepage Components
   ========================================================================== */
.search-filter-bar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto 2.5rem;
}

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

.search-input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3rem;
  font-size: 1.0625rem;
  background-color: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.search-icon-svg {
  position: absolute;
  left: 1.15rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  pointer-events: none;
}

.category-filter-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cat-filter-btn {
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cat-filter-btn:hover, .cat-filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.tool-directory-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none !important;
  color: var(--text-main);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.tool-directory-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #8b5cf6);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

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

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

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

.tool-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.tool-card-category {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-top: 0.2rem;
}

.tool-card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  border-top: 1px solid var(--border-color);
  padding-top: 0.85rem;
  margin-top: auto;
}

/* Popular Section */
.section-heading-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.section-heading {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

/* ==========================================================================
   SEO Content Sections (How-to, Features, FAQ, Related)
   ========================================================================== */
.seo-article {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin-bottom: 2rem;
}

.seo-section-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* How to use steps */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
  margin-bottom: 2rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.step-text {
  font-size: 0.9375rem;
  color: var(--text-main);
  line-height: 1.6;
}

.step-title {
  font-weight: 600;
  color: var(--text-main);
  display: block;
}

/* Feature grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.25rem;
}

.feature-box {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.feature-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.feature-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-question {
  width: 100%;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--bg-muted);
}

.faq-arrow {
  transition: transform var(--transition-fast);
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.15rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  border-top: 1px solid transparent;
}

.faq-item.open .faq-answer {
  display: block;
}

/* Related Tools Section */
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.related-tool-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-decoration: none !important;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.related-tool-card:hover {
  border-color: var(--primary);
  background-color: var(--primary-subtle);
  transform: translateY(-2px);
}

.related-icon {
  font-size: 1.25rem;
  color: var(--primary);
  flex-shrink: 0;
}

.related-name {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 0 2rem;
  transition: background-color var(--transition-base);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.9375rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ==========================================================================
   Footer Mini Realtime Visitor Counter (Compact)
   ========================================================================== */
.footer-mini-counter-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.footer-mini-counter {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  box-shadow: var(--shadow-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.mini-counter-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.mini-counter-icon {
  font-size: 0.85rem;
  line-height: 1;
}

.mini-counter-val {
  font-weight: 700;
  color: var(--primary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.mini-counter-val.pulse-counter {
  color: #10b981;
  transform: scale(1.15);
}

.mini-counter-lbl {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-weight: 500;
}

.mini-counter-divider {
  color: var(--border-color);
  font-size: 0.75rem;
  user-select: none;
}

.live-dot-indicator {
  width: 7px;
  height: 7px;
  background-color: #10b981;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: liveDotPulse 2s infinite;
}

@keyframes liveDotPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8125rem;
  color: var(--text-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Toasts & Modals
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background-color: var(--text-main);
  color: var(--bg-surface);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slideInUp 0.25s ease;
}

@keyframes slideInUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ==========================================================================
   PDF Tools & Format Selectors
   ========================================================================== */
.format-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem 0.75rem;
  background-color: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.format-card:hover {
  border-color: var(--primary);
  background-color: var(--bg-muted);
}

.format-card.active {
  border-color: var(--primary);
  background-color: var(--primary-subtle);
  color: var(--primary);
}

.format-card.active strong {
  color: var(--primary);
}

.editor-tool-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.page-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}