/* styles.css - Premium, Light-Weight, Responsive Design System for ToolOnWeb.com */

/* Import Google Fonts for multilingual readability */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+Devanagari:wght@300;400;500;600;700&family=Tajawal:wght@300;400;500;700&display=swap');

/* --- Design Tokens & CSS Variables --- */
:root {
  /* Common variables */
  --font-family-fallback: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-localized: var(--font-family-fallback);
  --sidebar-width: 280px;
  --header-height: 70px;
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 20px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Light Theme */
  --bg-primary: #f6f8fc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-glass: rgba(255, 255, 255, 0.6);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: rgba(226, 232, 240, 0.7);
  --border-glow: rgba(59, 130, 246, 0.1);
  --accent-color: #2563eb;
  --accent-light: #eff6ff;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --accent-gradient-glow: rgba(37, 99, 235, 0.15);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.08);
  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;

  /* Custom green-tinted textarea variables */
  --bg-textarea: #f2faf7;
  --border-textarea: #cbdad4;
  --bg-textarea-focus: #e8f7f1;
  --border-textarea-focus: #10b981;
  --shadow-textarea-focus: rgba(16, 185, 129, 0.12);
}

[data-theme="dark"] {
  /* Dark Theme */
  --bg-primary: #080c14;
  --bg-secondary: #0f1524;
  --bg-card: rgba(15, 21, 36, 0.7);
  --bg-glass: rgba(15, 21, 36, 0.6);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(51, 65, 85, 0.4);
  --border-glow: rgba(56, 189, 248, 0.15);
  --accent-color: #38bdf8;
  --accent-light: #0c1e35;
  --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #0369a1 100%);
  --accent-gradient-glow: rgba(56, 189, 248, 0.25);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 50px -15px rgba(0, 0, 0, 0.7);
  --scrollbar-track: #0f172a;
  --scrollbar-thumb: #334155;

  /* Custom green-tinted textarea variables */
  --bg-textarea: #07100e;
  --border-textarea: rgba(52, 211, 153, 0.15);
  --bg-textarea-focus: #0c1a17;
  --border-textarea-focus: #34d399;
  --shadow-textarea-focus: rgba(52, 211, 153, 0.2);
}

/* --- Base & Reset Styles --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family-localized), var(--font-family-fallback);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  height: 100%;
}

body {
  height: 100%;
  display: flex;
  overflow: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: 100%;
  background: none;
  border: none;
  color: inherit;
}

button {
  cursor: pointer;
}

/* --- Utility sizing classes for SVGs --- */
.w-4 { width: 16px !important; }
.h-4 { height: 16px !important; }
.w-5 { width: 20px !important; }
.h-5 { height: 20px !important; }
.w-6 { width: 24px !important; }
.h-6 { height: 24px !important; }

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--border-radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Core Page Layout (Responsive Sidebar & Content) --- */

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  height: 100%;
  background-color: var(--bg-secondary);
  border-inline-end: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  z-index: 100;
  transition: transform var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
}

.sidebar-logo {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 24px;
  border-bottom: 1px solid var(--border-color);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Sidebar close button (mobile only) */
.sidebar-close-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-close-btn:hover {
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 10px var(--accent-gradient-glow);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding-inline: 12px;
  margin-top: 16px;
  margin-bottom: 8px;
  font-weight: 600;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: stroke var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--accent-light);
  color: var(--accent-color);
}

.nav-link.active {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 600;
  box-shadow: inset 4px 0 0 -1px var(--accent-color);
}

html[dir="rtl"] .nav-link.active {
  box-shadow: inset -4px 0 0 -1px var(--accent-color);
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* App Main Container */
.app-container {
  margin-inline-start: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
  transition: margin-inline-start var(--transition-normal);
}

/* Header Dashboard */
.app-header {
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  padding: 8px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  transition: background-color var(--transition-fast);
}

.hamburger:hover {
  background-color: var(--bg-primary);
}

/* Search Bar styling */
.search-wrapper {
  position: relative;
  width: 320px;
}

.search-input {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 10px 16px;
  padding-inline-start: 40px;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 3px var(--border-glow);
}

.search-icon {
  position: absolute;
  top: 50%;
  inset-inline-start: 14px;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.search-shortcut {
  position: absolute;
  top: 50%;
  inset-inline-end: 12px;
  transform: translateY(-50%);
  font-size: 0.75rem;
  padding: 3px 6px;
  background-color: var(--border-color);
  color: var(--text-secondary);
  border-radius: 4px;
  pointer-events: none;
  font-weight: 600;
}

/* Header Controls (Theme, Language Dropdowns) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dropdown-container {
  position: relative;
}

.dropdown-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--border-radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.dropdown-btn:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-end: 0;
  width: 200px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 1000;
  max-height: 350px;
  overflow-y: auto;
}

.dropdown-container:hover .dropdown-menu,
.dropdown-container:focus-within .dropdown-menu,
.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  width: 100%;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: start;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--accent-light);
  color: var(--accent-color);
}

.dropdown-item.active {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 600;
}

.theme-toggle-btn {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle-btn:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
  transform: rotate(15deg);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

.theme-toggle-btn .sun-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: block;
}

/* --- Main Content Panel --- */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
}

/* --- Dynamic View Layouts --- */

/* Home Dashboard view */
.welcome-banner {
  margin-bottom: 40px;
  position: relative;
}

.welcome-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.welcome-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
  line-height: 1.6;
}

/* Category Filter Tags */
.category-filters {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.category-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.category-btn:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.category-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 4px 12px var(--accent-gradient-glow);
}

/* Tools Responsive Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.tool-card {
  background-color: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.tool-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-lg), 0 0 20px var(--border-glow);
}

.tool-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  background-color: var(--accent-light);
  border-radius: var(--border-radius-md);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-normal);
}

.tool-card:hover .tool-card-icon {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 8px 20px var(--accent-gradient-glow);
}

.tool-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  background-color: var(--bg-primary);
  padding: 4px 10px;
  border-radius: 50px;
}

.tool-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.tool-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  color: var(--accent-color);
  font-size: 0.9rem;
  font-weight: 600;
  gap: 6px;
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-card-footer {
  gap: 12px;
}

.tool-card-footer svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

html[dir="rtl"] .tool-card-footer svg {
  transform: scaleX(-1);
}

/* No Search Results View */
.no-results {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  color: var(--text-secondary);
  gap: 16px;
}

.no-results svg {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
}

/* Footer elements */
.main-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

/* --- Container for tools when loaded --- */
.tool-view-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.tool-header-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.btn-back {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  margin-bottom: 8px;
}

.btn-back:hover {
  color: var(--accent-color);
  background-color: var(--accent-light);
  border-color: var(--accent-color);
}

html[dir="rtl"] .btn-back svg {
  transform: scaleX(-1);
}

.tool-heading {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.tool-subheading {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 800px;
  line-height: 1.5;
}

/* Standard tool workspace layout */
.tool-workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 1024px) {
  .tool-workspace {
    grid-template-columns: 2fr 1fr;
  }
}

.tool-card-workspace {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-textarea-wrapper {
  position: relative;
  width: 100%;
}

.tool-textarea {
  width: 100%;
  min-height: 280px;
  background-color: var(--bg-textarea);
  border: 1px solid var(--border-textarea);
  border-radius: var(--border-radius-md);
  padding: 16px;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  resize: vertical;
  transition: all var(--transition-fast);
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--border-textarea-focus);
  background-color: var(--bg-textarea-focus);
  box-shadow: 0 0 0 3px var(--shadow-textarea-focus);
}

.tool-actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.btn-tool {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-tool-primary {
  background: var(--accent-gradient);
  color: #ffffff;
}

.btn-tool-primary:hover {
  box-shadow: 0 4px 15px var(--accent-gradient-glow);
  filter: brightness(1.05);
}

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

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

.btn-tool-success {
  background-color: #10b981;
  color: #fff;
}
.btn-tool-success:hover {
  background-color: #059669;
}

/* Statistics and details layout */
.tool-side-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stat-group {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-grid-2x3 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat-box {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
  transition: all var(--transition-fast);
}

.stat-box:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px var(--border-glow);
}

.stat-val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-lbl {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Density / detailed statistics */
.density-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.density-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.density-word {
  font-weight: 600;
  background-color: var(--bg-primary);
  padding: 2px 8px;
  border-radius: 4px;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.density-bar-container {
  flex: 1;
  height: 8px;
  background-color: var(--bg-primary);
  border-radius: 10px;
  margin-inline: 12px;
  overflow: hidden;
  position: relative;
}

.density-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 10px;
  transition: width var(--transition-normal);
}

.density-count {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- Mobile Adaptability Media Queries --- */
@media (max-width: 1023px) {
  body {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: 100%;
    transform: translateX(-100%); /* LTR default */
  }

  html[dir="rtl"] .sidebar {
    transform: translateX(100%);
  }

  .sidebar.active {
    transform: translateX(0) !important;
  }

  .sidebar-close-btn {
    display: flex;
  }

  .app-container {
    margin-inline-start: 0;
    padding-top: var(--header-height);
  }

  .app-header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
  }

  .hamburger {
    display: block;
  }

  /* Overlay behind sidebar on mobile */
  .sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 95;
  }

  .sidebar-overlay.active {
    display: block;
  }

  .search-wrapper {
    width: 180px;
  }

  .search-shortcut {
    display: none;
  }
}

@media (max-width: 768px) {
  .main-content {
    padding: 24px 16px;
  }

  .welcome-title {
    font-size: 1.75rem;
  }

  .welcome-banner {
    margin-bottom: 24px;
  }

  .dropdown-btn span,
  .btn-back span,
  .dropdown-btn svg:last-of-type {
    display: none;
  }
  
  .dropdown-btn {
    width: 38px;
    height: 38px;
    padding: 0;
    justify-content: center;
    border-radius: var(--border-radius-md);
  }

  .main-footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .search-wrapper {
    width: 140px;
  }

  .search-input {
    padding: 8px 12px;
    padding-inline-start: 32px;
  }

  .search-icon {
    inset-inline-start: 10px;
  }
}

/* --- Clean Print Layout for Professional PDF Report Export --- */
@media print {
  /* Hide interactive structural elements completely */
  .sidebar,
  .app-header,
  .btn-back,
  .tool-actions-bar,
  .header-actions,
  #sidebar-overlay,
  .category-filters,
  #character-limit-indicator,
  .welcome-banner,
  .welcome-desc,
  .main-footer {
    display: none !important;
  }
  
  /* Reset document for clean white page printing */
  html, body {
    background: #ffffff !important;
    color: #000000 !important;
    height: auto !important;
    overflow: visible !important;
    font-size: 12pt !important;
  }
  
  .app-container {
    margin-inline-start: 0 !important;
    padding-top: 0 !important;
    height: auto !important;
    overflow: visible !important;
  }
  
  .main-content {
    padding: 0 !important;
    height: auto !important;
    overflow: visible !important;
  }
  
  /* Stack workspace vertically */
  .tool-workspace {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
    display: flex !important;
    flex-direction: column !important;
  }
  
  .tool-card-workspace {
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
    padding: 0 !important;
  }
  
  /* Display input text cleanly */
  .tool-textarea {
    border: 1px solid #94a3b8 !important;
    background: #ffffff !important;
    color: #000000 !important;
    min-height: 200px !important;
    height: auto !important;
    resize: none !important;
    overflow: visible !important;
  }
  
  /* Printable report panels */
  .stat-group {
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: none !important;
    padding: 20px !important;
    page-break-inside: avoid !important;
  }
  
  .stat-grid-2x3 {
    grid-template-columns: repeat(3, 1fr) !important; /* 3 columns in print for compact layouts */
    gap: 10px !important;
  }
  
  .stat-box {
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
    color: #0f172a !important;
    padding: 10px !important;
  }
  
  .stat-val {
    color: #2563eb !important;
    font-size: 1.25rem !important;
  }
  
  .stat-lbl {
    color: #475569 !important;
    font-size: 0.65rem !important;
  }

  .density-bar-container {
    background: #f1f5f9 !important;
    border: 1px solid #cbd5e1 !important;
  }
  
  .density-bar-fill {
    background: #3b82f6 !important;
  }
}

/* --- SEO & FAQ Page Article Panel --- */
.seo-container {
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  padding-top: 60px;
  margin-bottom: 60px;
}

.seo-article {
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.8;
  color: var(--text-secondary);
}

.seo-article h1, .seo-article h2, .seo-article h3 {
  color: var(--text-primary);
  margin-top: 40px;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.seo-article h1 { font-size: 2.5rem; font-weight: 800; }
.seo-article h2 { font-size: 1.8rem; font-weight: 700; border-bottom: 1px solid var(--border-color); padding-bottom: 10px; }
.seo-article h3 { font-size: 1.3rem; font-weight: 600; }

.seo-article p {
  margin-bottom: 24px;
  font-size: 1.05rem;
}

.seo-article ul, .seo-article ol {
  margin-bottom: 24px;
  margin-inline-start: 24px;
}

.seo-article li {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

/* FAQ accordion panel */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 30px;
}

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

.faq-card:hover {
  border-color: var(--accent-color);
}

.faq-question {
  width: 100%;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
  text-align: start;
  cursor: pointer;
  background: none;
  border: none;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  transition: max-height var(--transition-normal) ease-out, padding var(--transition-normal);
}

.faq-card.active .faq-answer {
  max-height: 500px;
  padding-bottom: 20px;
}

.faq-card.active .faq-question svg {
  transform: rotate(180deg);
  color: var(--accent-color);
}