/* ============================================================
   TEST DE CI - EVALUACIÓN COGNITIVA
   Design System & Modern Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette - Premium Slate & Deep Indigo */
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --accent-light: rgba(79, 70, 229, 0.08);
  --accent-border: rgba(79, 70, 229, 0.25);
  
  --border: #e2e8f0;
  --border-focus: #818cf8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 35px -10px rgba(79, 70, 229, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.04);
  
  --radius: 16px;
  --radius-sm: 10px;
  --radius-full: 9999px;
  
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --error: #ef4444;
  --error-light: rgba(239, 68, 68, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  
  --font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== DARK THEME ===== */
[data-theme="dark"] {
  --bg: #090d16;
  --bg-card: #131b2e;
  --bg-card-subtle: #1c273e;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border: #1e293b;
  --border-focus: #6366f1;
  --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.6);
  --accent-light: rgba(99, 102, 241, 0.15);
  --accent-border: rgba(99, 102, 241, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #090d16;
    --bg-card: #131b2e;
    --bg-card-subtle: #1c273e;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border: #1e293b;
    --border-focus: #6366f1;
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.6);
    --accent-light: rgba(99, 102, 241, 0.15);
    --accent-border: rgba(99, 102, 241, 0.35);
  }
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 40px;
  transition: background-color var(--transition), color var(--transition);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== APP HEADER & NAV ===== */
.app-header {
  width: 100%;
  max-width: 820px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.app-logo-icon {
  font-size: 1.5rem;
  background: var(--accent-light);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-border);
}

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  color: var(--text);
}

.theme-toggle:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

/* ===== CONTAINER ===== */
.container {
  max-width: 820px;
  width: 100%;
}

/* ===== SECTION COMMON ===== */
.section {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.section.active {
  display: block;
}

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

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
  margin-bottom: 24px;
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: -0.3px;
}

/* ===== HEADINGS ===== */
h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 12px;
  color: var(--text);
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.4px;
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.975rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-secondary {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

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

.btn-danger {
  background: var(--error);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.35);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
  background: #059669;
}

/* ===== CONFIG SECTION ===== */
.hero-card {
  text-align: center;
  padding: 48px 32px;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-card-subtle) 100%);
}

.config-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  border: 1px solid var(--accent-border);
}

.config-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  margin: 28px 0;
}

.config-feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 14px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.config-feature:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
}

.config-feature strong {
  display: block;
  font-size: 1.15rem;
  color: var(--accent);
  margin-bottom: 2px;
}

.test-instructions-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-align: left;
}

.test-instructions-box ul {
  padding-left: 20px;
  margin-top: 10px;
}

.test-instructions-box li {
  margin-bottom: 6px;
}

/* ===== GUIDE & EXAMPLES SECTION ===== */
.guide-card {
  padding: 32px 28px;
}

.guide-header {
  margin-bottom: 20px;
  text-align: left;
}

.guide-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  scrollbar-width: thin;
}

.guide-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.guide-tab-btn.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.guide-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.guide-content.active {
  display: block;
}

.example-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 18px;
}

.example-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

.example-question-text {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.925rem;
}

.step-number {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 700;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
  border: 1px solid var(--accent-border);
}

.example-solution-callout {
  background: var(--success-light);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.95rem;
  color: var(--text);
  margin-top: 14px;
}

.example-solution-callout strong {
  color: var(--success);
}

/* ===== PROGRESS BAR ===== */
.progress-container {
  margin-bottom: 24px;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.progress-wrap {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  height: 12px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

/* ===== TEST RUNNER ===== */
.test-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.test-badge {
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  font-weight: 600;
  letter-spacing: 0.3px;
}

.test-timer {
  font-size: 1.15rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
  background: var(--bg-card-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

.test-timer.warning {
  color: var(--error);
  border-color: rgba(239, 68, 68, 0.4);
  background: var(--error-light);
  animation: timerPulse 0.6s infinite alternate;
}

@keyframes timerPulse {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0.7; transform: scale(1.03); }
}

.test-instructions {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.6;
}

.test-question {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text);
  line-height: 1.5;
}

.test-area {
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 28px;
}

/* Inputs */
input[type="text"],
input[type="number"] {
  padding: 14px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 600;
  font-family: inherit;
  width: 100%;
  max-width: 320px;
  transition: all var(--transition);
  outline: none;
  text-align: center;
}

input:focus {
  border-color: var(--accent);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px var(--accent-light);
}

/* Multiple choice options grid */
.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  width: 100%;
}

.option-btn {
  padding: 16px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 500;
  font-family: inherit;
  transition: all var(--transition);
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
}

.option-btn:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.option-btn.selected {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
  font-weight: 600;
}

/* Memory test */
.memory-digits {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: 14px;
  font-variant-numeric: tabular-nums;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  color: var(--accent);
}

.memory-digits.hidden {
  color: transparent;
  text-shadow: 0 0 16px var(--text-muted);
  user-select: none;
}

/* Spatial test canvas */
.spatial-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.spatial-reference-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.spatial-reference {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  background: var(--bg-card-subtle);
  box-shadow: var(--shadow-sm);
}

.spatial-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.spatial-option {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.spatial-option:hover {
  border-color: var(--accent);
  transform: scale(1.05);
  box-shadow: var(--shadow);
}

.spatial-option.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light), var(--shadow);
}

/* Processing speed */
.letter-pair {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: 16px;
  text-align: center;
  padding: 20px;
  color: var(--accent);
  background: var(--bg-card-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 100%;
  max-width: 380px;
}

.pair-buttons {
  display: flex;
  gap: 16px;
  width: 100%;
  max-width: 380px;
}

.pair-btn {
  flex: 1;
  padding: 16px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-card);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.pair-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.pair-btn.equal {
  background: var(--bg-card);
  color: var(--success);
  border-color: var(--success);
}

.pair-btn.equal:hover, .pair-btn.equal.selected {
  background: var(--success);
  color: #ffffff;
}

.pair-btn.different {
  background: var(--bg-card);
  color: var(--error);
  border-color: var(--error);
}

.pair-btn.different:hover, .pair-btn.different.selected {
  background: var(--error);
  color: #ffffff;
}

/* Alert banner */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  font-weight: 500;
  margin-bottom: 16px;
  display: none;
  animation: fadeIn 0.3s ease;
  width: 100%;
}

.alert.show {
  display: block;
}

.alert-error {
  background: var(--error-light);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== RESULTS SECTION ===== */
.result-hero {
  text-align: center;
  padding: 40px 24px;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-card) 100%);
  border-radius: var(--radius);
  border: 1px solid var(--accent-border);
}

.result-ci {
  font-size: 4.5rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  letter-spacing: -2px;
}

.result-label {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 12px;
  letter-spacing: -0.3px;
}

.result-message {
  font-size: 1.05rem;
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.result-detail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.result-detail-item {
  background: var(--bg-card-subtle);
  border-radius: var(--radius-sm);
  padding: 20px 18px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.result-detail-item:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.result-detail-item .score {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.result-detail-item .label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 6px;
}

.result-detail-item .bar-bg {
  height: 8px;
  background: var(--border);
  border-radius: var(--radius-full);
  margin-top: 12px;
  overflow: hidden;
}

.result-detail-item .bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--accent-gradient);
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 24px;
}

.result-ranges {
  overflow-x: auto;
}

.result-ranges table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.result-ranges th, .result-ranges td {
  padding: 12px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.result-ranges th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-ranges tr.highlight {
  background: var(--accent-light);
  font-weight: 700;
}

.result-ranges tr.highlight td {
  color: var(--accent);
}

/* ===== CANVAS CHART ===== */
.chart-container {
  position: relative;
  width: 100%;
  max-width: 540px;
  margin: 20px auto 0;
}

.chart-container canvas {
  width: 100% !important;
  height: auto !important;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  box-shadow: var(--shadow-lg);
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 300;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== PRINT STYLES ===== */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    padding: 0 !important;
  }
  .app-header, .theme-toggle, .btn, .result-actions, .guide-card {
    display: none !important;
  }
  .card {
    box-shadow: none !important;
    border: 1px solid #cbd5e1 !important;
    break-inside: avoid;
    margin-bottom: 16px !important;
  }
  .result-ci {
    -webkit-text-fill-color: #4f46e5 !important;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  body {
    padding: 16px 12px;
  }
  .card {
    padding: 24px 18px;
  }
  h1 {
    font-size: 1.75rem;
  }
  .result-ci {
    font-size: 3.5rem;
  }
  .options-grid {
    grid-template-columns: 1fr;
  }
  .spatial-options {
    flex-direction: column;
    align-items: center;
  }
  .config-features {
    grid-template-columns: 1fr 1fr;
  }
  .result-detail {
    grid-template-columns: 1fr;
  }
  .guide-tabs {
    flex-wrap: nowrap;
  }
}