:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-card-hover: rgba(31, 41, 55, 0.95);
  --bg-input: #1f2937;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --gradient-glow: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.25);
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --max-content-width: 1440px;
}

[data-theme="light"] {
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(249, 250, 251, 0.98);
  --bg-input: #f9fafb;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: #2563eb;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.15);
}

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

html, body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Ambient Background Glow */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 15% 15%, rgba(6, 182, 212, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Vertical Page Container */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* Top Sticky Header */
.main-header {
  height: 72px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
}

.header-container {
  max-width: var(--max-content-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--gradient-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-glow);
}

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--gradient-glow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-version {
  font-size: 0.68rem;
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
}

/* Header Search */
.nav-search-bar {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 8px 16px;
  width: 380px;
  gap: 10px;
  transition: var(--transition);
}

.nav-search-bar:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.nav-search-bar input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.88rem;
  width: 100%;
}

.search-shortcut {
  font-size: 0.7rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-icon {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.1rem;
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.lang-switch {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
}

/* ==========================================
   GOOGLE ADSENSE / REKLAM ALANI BİLEŞENLERİ
   ========================================== */

.ad-container {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.ad-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 700;
  opacity: 0.7;
}

.ad-placeholder {
  background: rgba(31, 41, 55, 0.4);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  width: 100%;
}

[data-theme="light"] .ad-placeholder {
  background: rgba(243, 244, 246, 0.8);
  border-color: rgba(0, 0, 0, 0.15);
}

.ad-placeholder:hover {
  border-color: var(--accent-cyan);
}

.ad-inner-notice {
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Ad Formats */
.ad-leaderboard .ad-placeholder {
  min-height: 90px;
  max-width: 970px;
}

.ad-sidebar-box .ad-placeholder {
  min-height: 600px;
  width: 100%;
  max-width: 300px;
}

.ad-sidebar-square .ad-placeholder {
  min-height: 250px;
  width: 100%;
  max-width: 300px;
}

.ad-in-content .ad-placeholder {
  min-height: 100px;
}

.ad-in-modal .ad-placeholder {
  min-height: 90px;
}

/* ==========================================
   MAIN VERTICAL PAGE CONTENT LAYOUT
   ========================================== */

.main-content-layout {
  max-width: var(--max-content-width);
  width: 100%;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  flex: 1;
}

/* Main Column */
.main-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Right Sticky Sidebar Column */
.sidebar-ad-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 92px;
  height: fit-content;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(12px);
}

.sidebar-widget-title {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Hero Public IP Banner */
.hero-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 24px 32px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-glow);
}

.hero-info h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.hero-info p {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.ip-quick-badge {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 12px 20px;
  border-radius: var(--radius-lg);
}

.ip-quick-text {
  display: flex;
  flex-direction: column;
}

.ip-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
}

.ip-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* Category Filter Tabs */
.category-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.category-tab {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-tab:hover {
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.category-tab.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  background: var(--bg-card-hover);
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 10px;
}

.tool-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.tool-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.tool-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tool-card-footer {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid var(--border-color);
}

.tool-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-muted);
  font-weight: 600;
}

.tool-action-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================
   HUMAN READABLE CARDS & TABLES
   ========================================== */

.human-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.human-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  transition: var(--transition);
}

.human-card:hover {
  border-color: var(--accent-blue);
  background: var(--bg-card-hover);
}

.human-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.human-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
  word-break: break-all;
}

.human-value.highlight {
  color: var(--accent-cyan);
}

.human-status-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.human-table-wrap {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-top: 14px;
}

.human-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.human-table th {
  background: rgba(0, 0, 0, 0.2);
  padding: 12px 16px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.human-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.human-table tr:last-child td {
  border-bottom: none;
}

.human-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-main);
}

.pill-badge.success { background: rgba(16, 185, 129, 0.15); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.3); }
.pill-badge.danger { background: rgba(244, 63, 94, 0.15); color: #f43f5e; border: 1px solid rgba(244, 63, 94, 0.3); }
.pill-badge.info { background: rgba(6, 182, 212, 0.15); color: #06b6d4; border: 1px solid rgba(6, 182, 212, 0.3); }
.pill-badge.warning { background: rgba(245, 158, 11, 0.15); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.3); }

.hop-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  transition: var(--transition);
}

.hop-item:hover {
  border-color: var(--accent-cyan);
}

.hop-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-glow);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
}

/* ==========================================
   MODAL DIALOG VIEWER
   ========================================== */

.tool-view-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 100;
  padding: 20px;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}

.tool-view-overlay.active {
  display: flex;
}

.tool-view-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  animation: modalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 800;
}

.modal-close-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--accent-rose);
  border-color: var(--accent-rose);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  scrollbar-width: thin;
  flex: 1;
}

/* UI Form Controls & Buttons */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.input-text, .input-select, .input-textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.input-textarea {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 140px;
  resize: vertical;
  line-height: 1.5;
}

.input-text:focus, .input-select:focus, .input-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

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

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

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

.btn-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.result-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  position: relative;
  min-height: 80px;
  max-height: 350px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Drag & Drop File Zone */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  background: rgba(31, 41, 55, 0.3);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.05);
}

.dropzone-icon {
  font-size: 2.2rem;
  color: var(--accent-cyan);
}

.dropzone-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.dropzone-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Toast Container */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-blue);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

.toast.success { border-left-color: var(--accent-emerald); }
.toast.error { border-left-color: var(--accent-rose); }
.toast.info { border-left-color: var(--accent-cyan); }

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

/* Diff Viewer */
.diff-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.diff-pane {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  min-height: 250px;
  overflow-x: auto;
}

.diff-line-add { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.diff-line-del { background: rgba(244, 63, 94, 0.15); color: #fb7185; }

/* Speedtest Gauge */
.gauge-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 16px 0;
}

.gauge-value {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.gauge-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.range-slider {
  flex: 1;
  accent-color: var(--accent-cyan);
  width: 100%;
}

/* Footer */
.main-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 32px 24px;
  margin-top: 40px;
}

.footer-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .main-content-layout {
    grid-template-columns: 1fr;
  }
  .sidebar-ad-col {
    position: static;
  }
  .ad-sidebar-box .ad-placeholder {
    max-width: 100%;
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 16px;
  }
  .nav-search-bar {
    display: none;
  }
  .hero-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .diff-container {
    grid-template-columns: 1fr;
  }
}