/* ==========================================================================
   Custom Keyword Planner - Modern Design System (CSS)
   ========================================================================== */

:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Dark Theme Palette (Default) */
  --bg-body: #0a0e17;
  --bg-surface: #111827;
  --bg-surface-elevated: #162032;
  --bg-surface-glass: rgba(17, 24, 39, 0.75);
  --bg-input: #0d131f;
  --bg-input-focus: #131b2e;

  --border-subtle: #1f293d;
  --border-glow: rgba(99, 102, 241, 0.35);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.4);

  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #a855f7;

  --badge-low-bg: rgba(16, 185, 129, 0.12);
  --badge-low-text: #34d399;
  --badge-med-bg: rgba(245, 158, 11, 0.12);
  --badge-med-text: #fbbf24;
  --badge-high-bg: rgba(244, 63, 94, 0.12);
  --badge-high-text: #fb7185;

  --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, 0.5);
  --shadow-primary: 0 0 25px rgba(99, 102, 241, 0.3);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
}

[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-glass: rgba(255, 255, 255, 0.85);
  --bg-input: #ffffff;
  --bg-input-focus: #f8fafc;

  --border-subtle: #e2e8f0;
  --border-glow: rgba(99, 102, 241, 0.25);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-glow: rgba(79, 70, 229, 0.25);

  --badge-low-bg: #ecfdf5;
  --badge-low-text: #059669;
  --badge-med-bg: #fffbeb;
  --badge-med-text: #d97706;
  --badge-high-bg: #fff1f2;
  --badge-high-text: #e11d48;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
  --shadow-primary: 0 0 20px rgba(79, 70, 229, 0.15);
}

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

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

/* Background Ambient Glow */
.ambient-glow {
  position: fixed;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18) 0%, rgba(6, 182, 212, 0.05) 50%, transparent 80%);
  pointer-events: none;
  z-index: 0;
  filter: blur(60px);
}

/* App Container */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  position: relative;
  z-index: 1;
}

/* Header & Navigation Bar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-surface-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: var(--shadow-primary);
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  text-transform: uppercase;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  font-family: var(--font-main);
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4338ca);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #3730a3);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  transform: translateY(-1px);
}

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

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

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.btn-icon:hover {
  color: var(--text-main);
  border-color: var(--border-glow);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12.5px;
}

/* Status Indicator Pill */
.status-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 30px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
}

.status-dot.simulated {
  background-color: var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber);
}

/* Main Grid Layout */
.main-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Card Panels */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: visible;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}

.card-title i {
  color: var(--primary);
}

/* Input Form Controls */
.search-form-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

@media (max-width: 960px) {
  .search-form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-label-hint {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-dim);
}

.form-control, .form-select {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-main);
  font-size: 13.5px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  outline: none;
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  background-color: var(--bg-input-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
}

.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 14px;
}

.input-icon-wrapper .form-control {
  padding-left: 40px;
}

/* Filters Row */
.filters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.35fr;
  gap: 12px;
}

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

/* Date Range Picker Popover (Google Keyword Planner Style) */
.date-range-wrapper {
  position: relative;
}

.date-range-trigger-btn {
  cursor: pointer;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  font-size: 13px;
  border-radius: var(--radius-md);
  transition: border-color 0.2s;
}

.date-range-trigger-btn:hover {
  border-color: var(--primary);
}

.date-range-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 9999;
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
  min-width: 500px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  animation: popoverFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.date-range-popover.show {
  display: flex;
}

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

.date-range-sidebar {
  width: 140px;
  background: var(--bg-surface-elevated);
  border-right: 1px solid var(--border-subtle);
  padding: 12px 0;
  display: flex;
  flex-direction: column;
}

.date-preset-item {
  padding: 10px 16px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.date-preset-item:hover {
  background: rgba(99, 102, 241, 0.1);
  color: var(--text-main);
}

.date-preset-item.active {
  background: rgba(99, 102, 241, 0.18);
  color: var(--primary);
  font-weight: 700;
  border-left: 3px solid var(--primary);
}

.date-range-calendar {
  flex: 1;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.date-range-header-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.date-input-boxes {
  display: flex;
  align-items: center;
  gap: 8px;
}

.date-box-input {
  width: 90px;
  padding: 6px 8px;
  font-size: 12px;
  text-align: center;
  font-weight: 600;
  background: var(--bg-surface-elevated);
}

.date-month-picker-container {
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 4px;
}

.year-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.year-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

.month-chip {
  padding: 6px 2px;
  text-align: center;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: var(--bg-surface-elevated);
  border: 1px solid transparent;
  transition: all 0.15s;
}

.month-chip:hover:not(.disabled) {
  background: var(--border-subtle);
  color: var(--text-main);
}

.month-chip.in-range {
  background: rgba(99, 102, 241, 0.15);
  color: var(--primary);
}

.month-chip.range-start,
.month-chip.range-end {
  background: var(--primary) !important;
  color: #ffffff !important;
  font-weight: 700;
  border-radius: 50px;
}

.month-chip.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.date-range-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

.options-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-subtle);
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.form-check input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--primary);
  cursor: pointer;
}

.form-check-label {
  font-size: 12.5px;
  color: var(--text-muted);
}

/* Quick Suggestion Chips */
.preset-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.preset-chip-title {
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 500;
}

.chip-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 11.5px;
  padding: 4px 10px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

/* KPI Summary Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.kpi-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-glow);
}

.kpi-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.kpi-icon-blue { background: rgba(99, 102, 241, 0.12); color: var(--primary); }
.kpi-icon-cyan { background: rgba(6, 182, 212, 0.12); color: var(--accent-cyan); }
.kpi-icon-emerald { background: rgba(16, 185, 129, 0.12); color: var(--accent-emerald); }
.kpi-icon-amber { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }
.kpi-icon-purple { background: rgba(168, 85, 247, 0.12); color: var(--accent-purple); }

.kpi-content {
  flex: 1;
  min-width: 0;
}

.kpi-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.kpi-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kpi-subtext {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Output Table Toolbar */
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.table-filters {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.filter-btn-group {
  display: flex;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
}

.filter-chip-btn {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  background: transparent;
  color: var(--text-muted);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

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

/* Custom Table Styling */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

table.dataTable {
  width: 100% !important;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  margin: 0 !important;
}

table.dataTable thead th {
  background-color: var(--bg-surface-elevated);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 14px 16px;
  border-bottom: 2px solid var(--border-subtle);
  border-top: none;
  white-space: nowrap;
}

table.dataTable tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 13.5px;
  vertical-align: middle;
}

table.dataTable tbody tr {
  background-color: transparent;
  transition: background-color 0.15s ease;
}

table.dataTable tbody tr:hover {
  background-color: var(--bg-surface-elevated);
}

table.dataTable tbody tr.selected {
  background-color: rgba(99, 102, 241, 0.08) !important;
}

/* Badges & Metrics Elements */
.keyword-text-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-main);
}

.keyword-text-cell span {
  color: var(--text-main);
}

.copy-kw-btn {
  opacity: 0;
  padding: 4px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  transition: opacity 0.2s ease, color 0.2s ease;
}

tr:hover .copy-kw-btn {
  opacity: 1;
}

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

.volume-bar-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.volume-bar {
  flex: 1;
  height: 5px;
  background: var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  max-width: 60px;
}

.volume-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--primary));
  border-radius: 10px;
}

.badge-comp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 700;
}

.badge-comp.LOW {
  background: var(--badge-low-bg);
  color: var(--badge-low-text);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-comp.MEDIUM {
  background: var(--badge-med-bg);
  color: var(--badge-med-text);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-comp.HIGH {
  background: var(--badge-high-bg);
  color: var(--badge-high-text);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.trend-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
}

.trend-badge.positive { color: var(--accent-emerald); }
.trend-badge.negative { color: var(--accent-rose); }
.trend-badge.neutral { color: var(--text-dim); }

/* Sparkline Mini SVG */
.sparkline-svg {
  width: 80px;
  height: 24px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.sparkline-svg:hover {
  transform: scale(1.08);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-backdrop.show {
  display: flex;
  animation: fadeIn 0.2s ease;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 620px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: slideUp 0.25s ease;
}

.modal-dialog.modal-lg {
  max-width: 880px;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--bg-surface-elevated);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: var(--text-main);
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 280px;
}

.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid var(--accent-rose); }
.toast.info { border-left: 4px solid var(--primary); }

/* Loading Spinner & Empty State */
.loading-overlay {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 18px;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-subtle);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  font-size: 48px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

/* Animations */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulseGlow { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.75; transform: scale(0.96); } }

/* =============================================================
   App Navigation Tabs (Mode Switcher)
   ============================================================= */
.app-nav-tabs-wrapper {
  margin-bottom: 22px;
}

.app-nav-tabs {
  display: flex;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 6px;
  box-shadow: var(--shadow-sm);
}

.nav-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.nav-tab-btn:hover {
  background: rgba(99, 102, 241, 0.08);
  color: var(--text-main);
}

.nav-tab-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--primary);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.nav-tab-btn .tab-subtitle {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-dim);
  margin-left: 4px;
}

.tab-badge-pulse {
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
  letter-spacing: 0.2px;
}

.view-panel {
  display: none;
  animation: fadeIn 0.25s ease;
}

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

/* =============================================================
   AutoSuggest & Image Keywords Studio
   ============================================================= */
.as-search-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.as-input-wrapper {
  position: relative;
}

.as-main-input {
  padding: 14px 18px 14px 44px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1.5px solid var(--border-subtle);
}

.as-main-input:focus {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.18);
}

.as-filters-row {
  display: flex;
  gap: 14px;
  align-items: flex-end;
}

.as-select-group {
  flex: 1;
  margin-bottom: 0;
}

.as-search-btn {
  padding: 11px 24px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  border: none;
  color: #fff;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.as-search-btn:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #b45309 100%);
  transform: translateY(-1px);
}

/* AutoSuggest Toolbar */
.as-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.as-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.as-pill-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.as-pill-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
}

.as-pill-btn.active {
  background: rgba(99, 102, 241, 0.18);
  border-color: var(--primary);
  color: var(--primary);
}

.as-badge {
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}

.as-actions {
  display: flex;
  gap: 8px;
}

/* AutoSuggest Category Cards Grid */
.as-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

.as-cat-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.as-cat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.as-cat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.as-cat-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.as-cat-count-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-dim);
}

.as-cat-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 4px;
}

.as-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: all 0.15s ease;
}

.as-item-row:hover {
  border-color: rgba(99, 102, 241, 0.4);
  background: rgba(99, 102, 241, 0.05);
}

.as-item-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
  word-break: break-word;
  flex: 1;
}

.as-item-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 10px;
}

.as-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}

.as-icon-btn:hover {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.15);
}

.as-add-btn {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.25);
  cursor: pointer;
  transition: all 0.15s;
}

.as-add-btn:hover {
  background: var(--accent-emerald);
  color: #fff;
}

/* =============================================================
   Topic Cluster & Content Silo Studio Styles
   ============================================================= */
.tc-mode-tabs {
  display: flex;
  gap: 12px;
}

.tc-mode-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tc-mode-btn:hover {
  border-color: #ec4899;
  color: var(--text-main);
}

.tc-mode-btn.active {
  background: rgba(236, 72, 153, 0.15);
  border-color: rgba(236, 72, 153, 0.4);
  color: #ec4899;
}

.tc-main-input:focus {
  border-color: #ec4899 !important;
  box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.18) !important;
}

.tc-search-btn {
  padding: 11px 22px;
  font-size: 13.5px;
  font-weight: 700;
  white-space: nowrap;
  background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
  border: none;
  color: #fff;
  box-shadow: 0 4px 14px rgba(236, 72, 153, 0.3);
}

.tc-search-btn:hover {
  background: linear-gradient(135deg, #f472b6 0%, #be185d 100%);
  transform: translateY(-1px);
}

/* 1. Master Pillar Page Banner */
.tc-pillar-banner {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.12) 0%, rgba(99, 102, 241, 0.08) 100%);
  border: 1px solid rgba(236, 72, 153, 0.28);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.tc-pillar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.tc-pillar-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ec4899;
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(236, 72, 153, 0.35);
}

.tc-pillar-est-traffic {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tc-pillar-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.35;
}

.tc-pillar-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.tc-slug-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
}

.tc-metric-tag {
  font-size: 12.5px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.tc-metric-tag strong {
  color: var(--text-main);
}

/* 2. Toolbar Actions */
.tc-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 12px 18px;
  border-radius: var(--radius-md);
}

.tc-toolbar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  flex: 1;
  max-width: 320px;
}

.tc-toolbar-search i {
  color: var(--text-dim);
  font-size: 13px;
}

.tc-toolbar-search input {
  background: transparent;
  border: none;
  outline: none;
  font-size: 13px;
  color: var(--text-main);
  width: 100%;
}

.tc-toolbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* 3. Clusters Grid & Cards */
.tc-clusters-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tc-cluster-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s ease;
}

.tc-cluster-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
}

.tc-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-surface);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease;
}

.tc-card-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.tc-card-title-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.tc-card-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.tc-card-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
}

.tc-card-format {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.tc-card-metrics {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tc-vol-badge {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tc-count-badge {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}

.tc-expand-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-dim);
  transition: transform 0.2s ease;
}

.tc-card-body {
  padding: 18px 20px;
  border-top: 1px solid var(--border-subtle);
}

/* 4. Blueprint & Internal Linking Boxes */
.tc-blueprint-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 14px;
}

.tc-blueprint-h1 {
  font-size: 14.5px;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.tc-blueprint-tag {
  font-size: 10.5px;
  text-transform: uppercase;
  background: var(--primary);
  color: #fff;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.tc-blueprint-meta {
  display: flex;
  gap: 18px;
  font-size: 12px;
  color: var(--text-dim);
  flex-wrap: wrap;
}

.tc-blueprint-meta code {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  background: rgba(6, 182, 212, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.tc-linking-box {
  background: rgba(99, 102, 241, 0.04);
  border: 1px dashed rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 14px;
}

.tc-linking-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tc-linking-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

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

.tc-link-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 12px;
}

.tc-link-direction {
  font-weight: 700;
  color: var(--text-main);
}

.tc-link-anchor {
  color: var(--text-muted);
}

.tc-link-anchor strong {
  color: var(--primary);
}


/* -------------------------------------------------------------
   Trend Chart Modal & Overlay Fixes (Fixes Bootstrap Clash)
   ------------------------------------------------------------- */
.modal-backdrop,
#trend-chart-modal.modal-backdrop,
#settings-modal.modal-backdrop,
#history-modal.modal-backdrop,
#saved-lists-modal.modal-backdrop,
#save-to-list-modal.modal-backdrop {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(15, 23, 42, 0.8) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999999 !important;
}

.modal-backdrop.show,
#trend-chart-modal.show,
#settings-modal.show,
#history-modal.show,
#saved-lists-modal.show,
#save-to-list-modal.show {
    display: flex !important;
}

.modal-dialog {
    background: var(--card-bg, #0f172a) !important;
    background-color: var(--card-bg, #0f172a) !important;
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.12)) !important;
    border-radius: 16px !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7) !important;
    opacity: 1 !important;
    width: 90% !important;
    max-width: 820px !important;
    margin: 0 auto !important;
    overflow: hidden !important;
    pointer-events: auto !important;
}

.modal-header {
    background: var(--card-header-bg, #1e293b) !important;
    background-color: var(--card-header-bg, #1e293b) !important;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1)) !important;
    padding: 16px 24px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
}

.modal-title {
    color: var(--text-main, #ffffff) !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    margin: 0 !important;
}

.modal-body {
    background: var(--card-bg, #0f172a) !important;
    background-color: var(--card-bg, #0f172a) !important;
    padding: 24px !important;
    opacity: 1 !important;
}

.modal-footer {
    background: var(--card-header-bg, #1e293b) !important;
    background-color: var(--card-header-bg, #1e293b) !important;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1)) !important;
    padding: 14px 24px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
}

.modal-close {
    background: transparent !important;
    border: none !important;
    color: var(--text-dim, #94a3b8) !important;
    font-size: 22px !important;
    cursor: pointer !important;
    transition: color 0.2s ease !important;
}

.modal-close:hover {
    color: #ef4444 !important;
}

[data-theme="light"] .modal-dialog {
    background: #ffffff !important;
    background-color: #ffffff !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .modal-header,
[data-theme="light"] .modal-footer {
    background: #f8fafc !important;
    background-color: #f8fafc !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .modal-body {
    background: #ffffff !important;
    background-color: #ffffff !important;
}

[data-theme="light"] .modal-title {
    color: #0f172a !important;
}

/* -------------------------------------------------------------
   MODAL DIALOG SOLID BACKGROUND FIX (OVERRIDDEN BOOTSTRAP CLASH)
   ------------------------------------------------------------- */
#trend-chart-modal.modal-backdrop,
#settings-modal.modal-backdrop,
#history-modal.modal-backdrop,
#saved-lists-modal.modal-backdrop,
#save-to-list-modal.modal-backdrop {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(15, 23, 42, 0.75) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999999 !important;
}

#trend-chart-modal.show,
#settings-modal.show,
#history-modal.show,
#saved-lists-modal.show,
#save-to-list-modal.show {
    display: flex !important;
}

#trend-chart-modal .modal-dialog,
#settings-modal .modal-dialog,
#history-modal .modal-dialog,
#saved-lists-modal .modal-dialog,
#save-to-list-modal .modal-dialog {
    background: var(--bg-surface, #0f172a) !important;
    background-color: var(--bg-surface, #0f172a) !important;
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.12)) !important;
    border-radius: 16px !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5) !important;
    opacity: 1 !important;
    width: 90% !important;
    max-width: 820px !important;
    margin: auto !important;
    overflow: hidden !important;
    pointer-events: auto !important;
}

#trend-chart-modal .modal-header,
#settings-modal .modal-header,
#history-modal .modal-header,
#saved-lists-modal .modal-header,
#save-to-list-modal .modal-header {
    background: var(--bg-surface-elevated, #1e293b) !important;
    background-color: var(--bg-surface-elevated, #1e293b) !important;
    border-bottom: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1)) !important;
    padding: 16px 24px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
}

#trend-chart-modal .modal-body,
#settings-modal .modal-body,
#history-modal .modal-body,
#saved-lists-modal .modal-body,
#save-to-list-modal .modal-body {
    background: var(--bg-surface, #0f172a) !important;
    background-color: var(--bg-surface, #0f172a) !important;
    padding: 24px !important;
    opacity: 1 !important;
}

#trend-chart-modal .modal-footer,
#settings-modal .modal-footer,
#history-modal .modal-footer,
#saved-lists-modal .modal-footer,
#save-to-list-modal .modal-footer {
    background: var(--bg-surface-elevated, #1e293b) !important;
    background-color: var(--bg-surface-elevated, #1e293b) !important;
    border-top: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1)) !important;
    padding: 14px 24px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
}

/* Light Theme Overrides */
[data-theme="light"] #trend-chart-modal .modal-dialog,
[data-theme="light"] #settings-modal .modal-dialog,
[data-theme="light"] #history-modal .modal-dialog,
[data-theme="light"] #saved-lists-modal .modal-dialog,
[data-theme="light"] #save-to-list-modal .modal-dialog {
    background: #ffffff !important;
    background-color: #ffffff !important;
    border-color: #e2e8f0 !important;
    color: #0f172a !important;
}

[data-theme="light"] #trend-chart-modal .modal-header,
[data-theme="light"] #settings-modal .modal-header,
[data-theme="light"] #history-modal .modal-header,
[data-theme="light"] #saved-lists-modal .modal-header,
[data-theme="light"] #save-to-list-modal .modal-header,
[data-theme="light"] #trend-chart-modal .modal-footer,
[data-theme="light"] #settings-modal .modal-footer,
[data-theme="light"] #history-modal .modal-footer,
[data-theme="light"] #saved-lists-modal .modal-footer,
[data-theme="light"] #save-to-list-modal .modal-footer {
    background: #f8fafc !important;
    background-color: #f8fafc !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] #trend-chart-modal .modal-body,
[data-theme="light"] #settings-modal .modal-body,
[data-theme="light"] #history-modal .modal-body,
[data-theme="light"] #saved-lists-modal .modal-body,
[data-theme="light"] #save-to-list-modal .modal-body {
    background: #ffffff !important;
    background-color: #ffffff !important;
}