/* ==========================================================================
   Reparti AI - Unified Design System & Multi-Menu Styles
   ========================================================================== */

:root {
  --bg-main: #0B0F19;
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(26, 34, 52, 0.95);
  --bg-card-subtle: rgba(255, 255, 255, 0.03);
  --bg-input: #121827;
  --bg-input-focus: #182032;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 102, 241, 0.5);
  --border-glow: rgba(99, 102, 241, 0.25);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0F172A;

  --primary: #6366F1;
  --primary-hover: #4F46E5;
  --primary-light: rgba(99, 102, 241, 0.15);
  --primary-gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
  --cyan-gradient: linear-gradient(135deg, #06B6D4 0%, #3B82F6 50%, #8B5CF6 100%);
  
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;
  --accent-rose: #F43F5E;
  --accent-cyan: #06B6D4;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Lora', Georgia, serif;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-main: #F4F6FB;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #FFFFFF;
  --bg-card-subtle: #F1F4F9;
  --bg-input: #FFFFFF;
  --bg-input-focus: #F8FAFC;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-active: rgba(99, 102, 241, 0.6);
  --border-glow: rgba(99, 102, 241, 0.2);

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-inverse: #FFFFFF;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 15px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(236, 72, 153, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Glass Surface Utility */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

/* Top Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.85rem 1.5rem;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

[data-theme="light"] .navbar {
  background: rgba(244, 246, 251, 0.9);
}

.nav-container {
  max-width: 1540px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-badge {
  width: 42px;
  height: 42px;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: var(--shadow-glow);
}

.brand-text h1 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 40%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .brand-text h1 {
  background: linear-gradient(135deg, #0F172A 40%, #4F46E5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  display: block;
}

/* Menu Segmented Switcher */
.main-menu-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-card-subtle);
  padding: 0.35rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

.menu-tab-btn {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.menu-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.menu-tab-btn.active {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.menu-tab-btn.active.artikel-tab {
  background: var(--cyan-gradient);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Button & Badges */
.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.95rem;
}

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

.btn-pill {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-pill:hover {
  color: var(--text-primary);
  border-color: var(--border-active);
  background: var(--bg-card-hover);
}

.badge-ai-mode {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.badge-ai-mode::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #10B981;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #10B981;
}

/* Workspace Views Container */
.workspace-view {
  display: none;
  animation: fadeIn 0.3s ease forwards;
}

.workspace-view.active-view {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Main Layout Grid */
.app-layout {
  max-width: 1540px;
  margin: 1.5rem auto 3rem;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 1.75rem;
  align-items: start;
}

@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: 1fr;
  }
}

/* Panels */
.panel-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.panel-title i {
  color: var(--primary);
  font-size: 1.1rem;
}

.panel-body {
  padding: 1.5rem;
}

/* Preset Pills */
.preset-bar {
  margin-bottom: 1.25rem;
}

.preset-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.preset-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.preset-chip {
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  background: var(--primary-light);
  border-color: var(--border-active);
  color: var(--primary);
  transform: translateY(-1px);
}

/* Form Styles */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}

.form-full {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label .required {
  color: var(--accent-rose);
  font-weight: 700;
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.95rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.88rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
  background: var(--bg-input-focus);
}

.form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

textarea.form-control {
  resize: vertical;
  min-height: 72px;
  line-height: 1.45;
}

/* Interactive Tags Input */
.tags-input-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.65rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  min-height: 44px;
}

.tags-input-container:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.tag-badge {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.tag-badge .tag-close {
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.tag-badge .tag-close:hover {
  color: var(--accent-rose);
}

.tag-input {
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  flex: 1;
  min-width: 120px;
}

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

.range-slider {
  flex: 1;
  -webkit-appearance: none;
  height: 6px;
  background: var(--border-subtle);
  border-radius: var(--radius-pill);
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.6);
  transition: transform var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.range-value {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 75px;
  text-align: right;
}

/* Generate CTA */
.btn-generate {
  width: 100%;
  padding: 0.95rem 1.5rem;
  background: var(--primary-gradient);
  border: none;
  border-radius: var(--radius-md);
  color: #fff;
  font-weight: 700;
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.35);
  transition: all var(--transition-normal);
  margin-top: 1.25rem;
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.5);
  filter: brightness(1.08);
}

.btn-generate.loading {
  pointer-events: none;
  opacity: 0.85;
}

.btn-generate.loading i {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Output Preview & Metrics */
.preview-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

@media (max-width: 640px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-card {
  padding: 0.85rem 1rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.metric-card .metric-title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-card .metric-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.metric-card .metric-sub {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.metric-card.score-high .metric-val { color: var(--accent-emerald); }
.metric-card.score-medium .metric-val { color: var(--accent-amber); }
.metric-card.score-low .metric-val { color: var(--accent-rose); }

.analysis-banner {
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #34D399;
}

.analysis-banner.warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.25);
  color: #FBBF24;
}

.analysis-banner i {
  font-size: 1.1rem;
  margin-top: 2px;
}

/* Editor & Toolbar */
.editor-wrapper {
  position: relative;
}

.editor-toolbar {
  padding: 0.65rem 1.15rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: var(--bg-card-subtle);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.editor-tools-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.article-content {
  padding: 2rem;
  min-height: 420px;
  outline: none;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.article-content.font-serif-mode {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-content h1 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  line-height: 1.35;
}

.article-content h2 {
  font-size: 1.25rem;
  font-weight: 750;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.35rem;
}

.article-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.article-content .byline {
  font-style: italic;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1.5rem;
  display: block;
  font-size: 0.9rem;
}

.article-content p {
  margin-bottom: 1.25rem;
}

.article-content ul {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.4rem;
}

.article-content blockquote {
  border-left: 3px solid var(--primary);
  padding: 0.85rem 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-secondary);
  background: var(--bg-card-subtle);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4.5rem 2rem;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.8;
}

.empty-state h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.88rem;
  max-width: 380px;
  margin: 0 auto;
}

/* SEO chips */
.seo-keywords-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.kw-chip {
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.kw-chip.status-ideal {
  border-color: rgba(16, 185, 129, 0.4);
  color: #34D399;
}

.kw-chip.status-low {
  border-color: rgba(245, 158, 11, 0.4);
  color: #FBBF24;
}

.kw-chip.status-missing {
  border-color: rgba(244, 63, 94, 0.4);
  color: #FB7185;
}

/* ==========================================================================
   Non-Intrusive Advertisement Container Styles
   ========================================================================== */
.ad-container-outer {
  max-width: 1540px;
  margin: 0.85rem auto 0;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

.ad-slot-card {
  background: var(--bg-card-subtle);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.85rem 0.65rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.ad-slot-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.ad-label-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  opacity: 0.7;
}

.ad-content-box {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  width: 100%;
}

.ad-content-box ins.adsbygoogle {
  background: transparent !important;
  max-width: 100%;
}

/* Modals - High z-index to never be covered by ads */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  width: 100%;
  max-width: 620px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(20px) scale(0.97);
  transition: all var(--transition-normal);
  position: relative;
  z-index: 10001;
}

.modal-backdrop.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Toast Notification - Highest z-index */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 20000;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background: #1E293B;
  color: #fff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slide-up 0.3s ease forwards;
  pointer-events: auto;
}

.toast.success { border-color: rgba(16, 185, 129, 0.5); }
.toast.info { border-color: rgba(99, 102, 241, 0.5); }
.toast.warning { border-color: rgba(245, 158, 11, 0.5); }

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

.history-item {
  padding: 1rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.history-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateX(4px);
}

.history-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.history-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.92rem;
  margin-bottom: 0.25rem;
}

@keyframes bounce {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-8px) scale(1.06); }
}

/* ==========================================================================
   Comprehensive Responsive Layouts (Mobile, Tablet, Laptop, PC)
   ========================================================================== */

/* Laptop & Tablet Landscape (<= 1100px) */
@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 1.25rem auto 2.5rem;
  }
}

/* Tablet Portrait & Large Phones (<= 768px) */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
  }

  .nav-actions {
    justify-content: space-between;
    width: 100%;
  }

  .main-menu-nav {
    width: 100%;
    justify-content: center;
  }

  .menu-tab-btn {
    flex: 1;
    justify-content: center;
    font-size: 0.8rem;
    padding: 0.45rem 0.75rem;
  }

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

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

  .editor-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .editor-tools-group {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Small Smartphone Screen (<= 480px) */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .app-layout {
    padding: 0 0.85rem;
    margin-top: 1rem;
  }

  .panel-body {
    padding: 1.15rem 0.95rem;
  }

  .article-content {
    padding: 1.25rem 1rem;
  }

  .metrics-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }

  .metric-card {
    padding: 0.65rem 0.75rem;
  }

  .metric-card .metric-val {
    font-size: 1.1rem;
  }

  .btn-generate {
    font-size: 0.95rem;
    padding: 0.85rem 1rem;
  }

  .modal-box {
    margin: 0.5rem;
  }
}

/* High Resolution Monitors / PC (>= 1600px) */
@media (min-width: 1600px) {
  .app-layout {
    max-width: 1680px;
    grid-template-columns: 1fr 1.25fr;
  }
}

.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 1540px;
  margin: 0 auto;
}