/* CSS Reset & Variables */
:root {
  /* Font Families */
  --font-body: 'Outfit', sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

/* Dark Theme Variables (Default) */
body.dark-theme {
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent: #059669; /* Emerald Green */
  --accent-hover: #10b981;
  --accent-light: rgba(5, 150, 105, 0.15);
  --accent-glow: rgba(5, 150, 105, 0.4);

  --accent-sec: #0ea5e9; /* Sky Blue */
  --accent-sec-light: rgba(14, 165, 233, 0.15);
  
  --border-color: #374151;
  --card-bg: rgba(17, 24, 39, 0.75);
  --card-border: rgba(255, 255, 255, 0.05);
  --card-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.6);
  --input-bg: #1f2937;
  --input-border: #374151;
  --input-focus-border: #059669;

  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --glass-effect: blur(12px) saturate(160%);
}

/* Light Theme Variables */
body.light-theme {
  --bg-primary: #f3f4f6;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f9fafb;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  --accent: #059669; /* Emerald Green */
  --accent-hover: #047857;
  --accent-light: rgba(5, 150, 105, 0.08);
  --accent-glow: rgba(5, 150, 105, 0.2);

  --accent-sec: #0284c7; /* Sky Blue */
  --accent-sec-light: rgba(2, 132, 199, 0.08);

  --border-color: #e5e7eb;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(0, 0, 0, 0.05);
  --card-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.05);
  --input-bg: #f9fafb;
  --input-border: #d1d5db;
  --input-focus-border: #059669;

  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --glass-effect: blur(12px) saturate(120%);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
}

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

/* Site Header */
.site-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
  backdrop-filter: var(--glass-effect);
  -webkit-backdrop-filter: var(--glass-effect);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.back-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.back-link:hover {
  color: var(--text-primary);
}

.logo-container {
  display: flex;
  align-items: center;
}
.logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}
.highlight-text {
  color: var(--accent);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 0.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.theme-toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
  background-color: var(--bg-tertiary);
}

/* Icons styling for theme switch */
body.dark-theme .sun-icon {
  display: block;
}
body.dark-theme .moon-icon {
  display: none;
}
body.light-theme .sun-icon {
  display: none;
}
body.light-theme .moon-icon {
  display: block;
}

/* Main Content Layout */
.main-content {
  flex: 1;
  padding: 2.5rem 1.5rem;
}

.main-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* App Intro */
.app-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.app-title {
  font-size: 2.5rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.app-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Navigation Tabs */
.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  background-color: var(--bg-secondary);
  padding: 0.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  align-self: center;
  width: max-content;
  max-width: 100%;
}

.tab-btn {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

/* Tab Panels */
.tab-pane {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Indicators Dashboard */
.indicators-dashboard {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.section-title-sml {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 700;
}

.indicators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.indicator-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.indicator-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.tooltip-trigger {
  cursor: help;
  font-size: 0.85rem;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}
.tooltip-trigger:hover {
  opacity: 1;
}

/* Tooltip container element */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background-color: #1f2937;
  color: #f9fafb;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  width: 200px;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  z-index: 10;
  border: 1px solid #374151;
  font-family: var(--font-body);
  line-height: 1.4;
}
[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

.indicator-input-wrapper {
  display: flex;
  align-items: center;
  position: relative;
}

.indicator-input {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  width: 100%;
  transition: border-color var(--transition-fast);
}
.indicator-input:focus {
  border-color: var(--input-focus-border);
  outline: none;
}

.indicator-unit {
  position: absolute;
  right: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
}

/* Common Card Styles */
.simulation-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  backdrop-filter: var(--glass-effect);
  -webkit-backdrop-filter: var(--glass-effect);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.input-card-design {
  border-left: 4px solid var(--accent);
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Simulation Layout (Individual Tab) */
.simulation-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 2rem;
  align-items: start;
}

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.input-prefix-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
}

.form-input {
  width: 100%;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.input-prefix-wrapper .form-input {
  padding-left: 2.5rem;
}

.form-input:focus, .form-select:focus {
  border-color: var(--input-focus-border);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-select {
  width: 100%;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.2rem;
  padding-right: 2.5rem;
}

.form-input-number {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  width: 70px;
  text-align: center;
}
.form-input-number:focus {
  border-color: var(--input-focus-border);
  outline: none;
}

.period-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

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

.input-prefix-wrapper .input-suffix {
  position: absolute;
  right: 1rem;
  pointer-events: none;
}

.border-top-divider {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

/* Custom Range Slider */
.slider-container {
  margin-top: 0.75rem;
}

.form-slider {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  outline: none;
  appearance: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.form-slider::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(5, 150, 105, 0.4);
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.form-slider::-webkit-slider-thumb:hover {
  background: var(--accent-hover);
  transform: scale(1.15);
}

.form-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(5, 150, 105, 0.4);
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.form-slider::-moz-range-thumb:hover {
  background: var(--accent-hover);
  transform: scale(1.15);
}

.slider-marks {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Simulation Results & Grid */
.simulation-results-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.result-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.result-card.highlight {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--accent-light), rgba(17, 24, 23, 0.2));
  border-color: var(--accent);
}

body.light-theme .result-card.highlight {
  background: linear-gradient(135deg, var(--accent-light), rgba(255, 255, 255, 0.5));
}

.result-card.highlight-secondary {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--accent-sec-light), rgba(17, 24, 23, 0.2));
  border-color: var(--accent-sec);
}

body.light-theme .result-card.highlight-secondary {
  background: linear-gradient(135deg, var(--accent-sec-light), rgba(255, 255, 255, 0.5));
}

.result-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.result-card.highlight .result-label {
  color: var(--accent);
}

.result-card.highlight-secondary .result-label {
  color: var(--accent-sec);
}

.result-value {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.result-card.highlight .result-value {
  font-size: 2.2rem;
  color: var(--accent-hover);
}

.result-card.highlight-secondary .result-value {
  font-size: 2.2rem;
  color: var(--accent-sec);
}

.result-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  font-weight: 500;
}

.result-value.positive {
  color: var(--success);
}

.result-badge {
  position: absolute;
  right: 1.25rem;
  top: 1.25rem;
  background-color: var(--accent-light);
  color: var(--accent);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
}

/* Charts Elements */
.chart-card-design {
  padding: 1.75rem;
}

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

.chart-title {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.chart-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: 320px;
}

/* Comparative Tab Layout */
.comparative-layout, .meta-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-summary-card {
  padding: 1.5rem 2rem;
}

.summary-parameters {
  display: flex;
  gap: 3rem;
  margin: 1.25rem 0;
  flex-wrap: wrap;
}

.param-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.param-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
}

.param-val {
  font-size: 1.25rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--text-primary);
}

.summary-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

/* Comparative Table Design */
.table-card-design {
  padding: 1.5rem;
  overflow: hidden;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.comparative-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.comparative-table th, .comparative-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.comparative-table th {
  background-color: var(--bg-secondary);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.comparative-table tbody tr {
  transition: background-color var(--transition-fast);
}

.comparative-table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

.comparative-table tbody tr.best-option-row {
  background-color: var(--accent-light);
  position: relative;
}

.comparative-table tbody tr.best-option-row td {
  font-weight: 600;
  border-bottom: 1px solid var(--accent);
}

.best-badge {
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
  display: inline-block;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Meta Tab Layout */
.meta-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 2rem;
  align-items: start;
}

.meta-results-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.meta-visual-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.visual-progress-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.visual-progress-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.visual-progress-bar-outer {
  width: 100%;
  height: 16px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.visual-progress-bar-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--accent-glow);
  width: 0%;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.visual-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.5rem;
}

/* FAQ / Guide Section */
.seo-guide-container {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.guide-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.guide-main-title {
  font-size: 2.2rem;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}

.guide-lead-in {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.guide-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.guide-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.guide-section h3 {
  font-size: 1.35rem;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  line-height: 1.3;
}

.guide-section p {
  color: var(--text-secondary);
  font-size: 1rem;
  text-align: justify;
}

.guide-section ul, .guide-section ol {
  padding-left: 1.5rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.guide-section li strong {
  color: var(--text-primary);
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.guide-table th, .guide-table td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  text-align: center;
}

.guide-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 700;
}

.guide-table tbody tr:nth-child(even) {
  background-color: rgba(255,255,255,0.01);
}

body.light-theme .guide-table tbody tr:nth-child(even) {
  background-color: rgba(0,0,0,0.01);
}

/* Footer Section */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 1.5rem;
  margin-top: 4rem;
  transition: all var(--transition-normal);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.footer-link:hover {
  color: var(--text-primary);
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .simulation-layout, .meta-layout {
    grid-template-columns: 1fr;
  }
  
  .simulation-card {
    padding: 1.5rem;
  }
}

@media (max-width: 768px) {
  .app-title {
    font-size: 2rem;
  }
  
  .tabs-nav {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0.3rem;
  }
  
  .tab-btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }

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

  .result-card.highlight, .result-card.highlight-secondary {
    grid-column: span 1;
  }

  .header-container {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
    text-align: center;
  }
  
  .logo-container {
    justify-content: center;
  }
  
  .theme-toggle-btn {
    align-self: center;
  }

  .footer-container {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  
  .footer-links {
    justify-content: center;
    width: 100%;
  }

  .summary-parameters {
    gap: 1.5rem;
  }

  .seo-guide-container {
    padding: 1.75rem 1.25rem;
  }

  .guide-main-title {
    font-size: 1.75rem;
  }
}