/* ==========================================================================
   GUARDALIBRE - CORPORATE PRO MAX DESIGN SYSTEM (LIGHT THEME)
   Inspirado en UI/UX Pro Max Skill: Clean Enterprise, High Contrast, Precision SaaS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  /* Bases & Surfaces */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;

  /* Borders */
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #2563eb;

  /* Typography */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --text-light: #94a3b8;

  /* Brand Accents */
  --ml-yellow: #facc15;
  --ml-yellow-solid: #eab308;
  --ml-yellow-deep: #ca8a04;
  --ml-yellow-tint: #fefce8;
  
  --brand-blue: #2563eb;
  --brand-blue-hover: #1d4ed8;
  --brand-blue-tint: #eff6ff;
  --brand-navy: #0f172a;

  /* Status Colors */
  --status-success: #16a34a;
  --status-success-bg: #f0fdf4;
  --status-warning: #d97706;
  --status-warning-bg: #fffbeb;
  --status-danger: #dc2626;
  --status-danger-bg: #fef2f2;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 9999px;

  /* Precision Corporate Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 32px -6px rgba(15, 23, 42, 0.1), 0 8px 12px -4px rgba(15, 23, 42, 0.05);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(at 0% 0%, rgba(254, 240, 138, 0.35) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(219, 234, 254, 0.45) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(241, 245, 249, 0.6) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--text-main);
}

a {
  color: inherit;
  text-decoration: none;
}

.text-gradient-yellow {
  color: var(--ml-yellow-deep);
  background: linear-gradient(135deg, #ca8a04 0%, #eab308 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-blue {
  color: var(--brand-blue);
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.navbar {
  position: sticky;
  top: 16px;
  z-index: 100;
  margin-bottom: 32px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--brand-blue);
}

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

/* ==========================================================================
   BUTTONS (CORPORATE PRO)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #ffe600 0%, #eab308 100%);
  color: #0f172a;
  font-weight: 700;
  border: 1px solid #eab308;
  box-shadow: 0 4px 14px rgba(234, 179, 8, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fff04d 0%, #facc15 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(234, 179, 8, 0.4);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: var(--border-focus);
  color: var(--brand-blue);
  transform: translateY(-2px);
}

.btn-blue {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-blue:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
  font-weight: 700;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 48px 0 72px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--ml-yellow-tint);
  border: 1px solid rgba(234, 179, 8, 0.35);
  color: var(--ml-yellow-deep);
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  max-width: 960px;
  margin: 0 auto 20px;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 32px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-dim);
}

/* ==========================================================================
   SIMULADOR DE SCRAPING
   ========================================================================== */
.simulator-section {
  padding: 60px 0 90px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-blue);
  background: var(--brand-blue-tint);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 14px;
  color: var(--text-main);
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.simulator-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.simulator-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ffe600, #2563eb);
}

.simulator-input-wrap {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.simulator-input {
  flex: 1;
  background: var(--bg-subtle);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 16px 24px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.simulator-input:focus {
  border-color: var(--border-focus);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.sample-pills {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.sample-pills-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 600;
}

.pill-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.pill-btn svg {
  flex-shrink: 0;
  stroke: currentColor;
}

.pill-btn:hover, .pill-btn.active {
  background: var(--ml-yellow-tint);
  color: var(--ml-yellow-deep);
  border-color: rgba(234, 179, 8, 0.4);
}

.simulator-result-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
}

/* Product Card */
.product-snapshot-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.product-img-wrap {
  width: 100%;
  height: 240px;
  background: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-img-wrap img {
  max-width: 85%;
  max-height: 85%;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.badge-tag-full {
  position: absolute;
  top: 12px;
  left: 12px;
  background: #16a34a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.3);
}

.badge-tag-discount {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #dc2626;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 6px;
}

.product-info-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-pricing {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.current-price {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
}

.original-price {
  font-size: 1rem;
  color: var(--text-dim);
  text-decoration: line-through;
}

.product-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

.stock-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--status-success);
  font-weight: 700;
}

.stock-indicator.warning {
  color: var(--status-warning);
}

.stock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

/* Analytics Panel */
.product-analytics-panel {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-sm);
}

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

.chart-stats-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.chart-stat-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.chart-stat-title {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.chart-stat-val {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
}

.chart-canvas-container {
  width: 100%;
  height: 220px;
  background: #f8fafc;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.chart-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.alert-banner-box {
  background: var(--status-success-bg);
  border: 1px solid rgba(22, 163, 74, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.alert-icon {
  font-size: 1.4rem;
}

.alert-text-main {
  font-size: 0.92rem;
  font-weight: 700;
  color: #15803d;
}

.alert-text-sub {
  font-size: 0.84rem;
  color: #166534;
}

/* ==========================================================================
   COMPARATIVA PROBLEMA VS SOLUCIÓN
   ========================================================================== */
.comparison-section {
  padding: 80px 0;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.comparison-card {
  padding: 36px;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: var(--shadow-md);
}

.comparison-card.problem {
  background: #fff5f5;
  border: 1px solid #fed7d7;
}

.comparison-card.solution {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.comparison-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 800;
  width: fit-content;
}

.problem .comparison-card-badge {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fca5a5;
}

.solution .comparison-card-badge {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #86efac;
}

.comparison-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text-main);
}

.comparison-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-top: 1px;
}

.problem .comparison-icon {
  background: #fee2e2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

.solution .comparison-icon {
  background: #dcfce7;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

/* ==========================================================================
   ECOSISTEMA (WEB + EXTENSIÓN + TELEGRAM)
   ========================================================================== */
.ecosystem-section {
  padding: 80px 0 100px;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.eco-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.eco-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-focus);
}

.eco-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
}

.eco-card:nth-child(1) .eco-icon-wrap {
  background: var(--brand-blue-tint);
  color: var(--brand-blue);
  border: 1px solid #bfdbfe;
}

.eco-card:nth-child(2) .eco-icon-wrap {
  background: var(--ml-yellow-tint);
  color: var(--ml-yellow-deep);
  border: 1px solid #fef08a;
}

.eco-card:nth-child(3) .eco-icon-wrap {
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

.eco-title {
  font-size: 1.45rem;
}

.eco-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.eco-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-main);
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.eco-features li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.eco-features li span {
  color: var(--status-success);
  font-weight: 700;
}

/* ==========================================================================
   FIREBASE MULTI-USUARIO BANNER
   ========================================================================== */
.firebase-section {
  padding: 60px 0 90px;
}

.firebase-banner {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}

.firebase-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.fb-feat-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.fb-feat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--brand-blue);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.code-mockup {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: var(--radius-lg);
  padding: 24px;
  font-family: 'SFMono-Regular', Consolas, Menlo, monospace;
  font-size: 0.85rem;
  color: #e2e8f0;
  overflow-x: auto;
  line-height: 1.6;
  box-shadow: var(--shadow-md);
}

.code-mockup .comment { color: #64748b; }
.code-mockup .keyword { color: #f43f5e; }
.code-mockup .string { color: #34d399; }

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-section {
  padding: 80px 0;
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-medium);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
  color: var(--text-dim);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
  color: var(--brand-blue);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: #ffffff;
  padding: 60px 0 36px;
  margin-top: 80px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-brand-title img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Responsive */
@media (max-width: 992px) {
  .simulator-result-grid { grid-template-columns: 1fr; }
  .comparison-grid { grid-template-columns: 1fr; }
  .ecosystem-grid { grid-template-columns: 1fr; }
  .firebase-banner { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .simulator-input-wrap { flex-direction: column; }
  .chart-stats-summary { grid-template-columns: 1fr; }
}