/* ============================================================
   Infografía: ¿Cuánto cuesta NO automatizar?
   ============================================================ */

/* 1. Variables CSS */
:root {
  --color-primary: #B8391C;
  --color-primary-dark: #9C2F16;
  --color-secondary: #D4622A;
  --color-bg: #F7F8FA;
  --color-surface: #FFFFFF;
  --color-text: #111318;
  --color-text-secondary: #4A5063;
  --color-border: #DDE1E9;
  --color-success: #2D7D46;
  
  --font-display: 'DM Serif Display', serif;
  --font-body: 'Inter', system-ui, sans-serif;
  
  --space-2: 1.2rem;
  --space-3: 1.6rem;
  --space-4: 2.4rem;
  --space-6: 3.2rem;
  --space-8: 4.8rem;
  --space-12: 9.6rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  
  --duration-fast: 200ms;
  --duration-medium: 300ms;
  --duration-slow: 600ms;
}

[data-theme="dark"] {
  --color-bg: #0E1117;
  --color-surface: #161B26;
  --color-text: #EDF0F7;
  --color-text-secondary: #9BA3B8;
  --color-border: #252D3F;
  --shadow-sm: 0 1px 4px rgba(0,0,0,.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,.28);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.36);
}

/* 2. Reset base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 1.6rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  transition: background .3s ease, color .3s ease;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
main { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }
img, svg { display: block; max-width: 100%; }

/* 3. Utilidades */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.text-accent { color: var(--color-primary); }

/* 4. Barra de progreso */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 1000;
}
.progress-fill {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width var(--duration-medium) ease;
}

/* 5. Contenedor principal */
.infografia-container {
  width: 100%;
  max-width: 120rem;
  margin-inline: auto;
  padding: var(--space-8) var(--space-6);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 768px) {
  .infografia-container { padding: var(--space-6) var(--space-3); gap: var(--space-8); }
}

/* 6. Secciones */
.infografia-section {
  width: 100%;
  max-width: 80rem;
  opacity: 0;
  transform: translateY(4rem);
  transition: opacity var(--duration-slow) ease, transform var(--duration-slow) ease;
  padding: var(--space-8) var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  position: relative;
}
.infografia-section.active { opacity: 1; transform: none; }

.section-number {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  opacity: 0.7;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section-text {
  font-size: clamp(1.6rem, 2vw, 1.9rem);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.section-annotation {
  font-size: 1.4rem;
  font-style: italic;
  color: var(--color-text-secondary);
  opacity: 0.8;
  margin-top: var(--space-4);
  border-left: 3px solid var(--color-secondary);
  padding-left: var(--space-3);
}

/* 7. Section Hero */
.section-hero {
  text-align: center;
  padding: var(--space-8) var(--space-4);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.8rem);
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.025em;
}
.hero-subtitle {
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  font-weight: 500;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}
.hero-meta {
  font-size: clamp(1.5rem, 2vw, 1.8rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 56rem;
  margin-inline: auto;
}

/* 8. Tarjetas de tareas */
.task-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(24rem, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.task-card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: transform var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}
.task-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.task-one { border-top: 4px solid var(--color-primary); }
.task-two { border-top: 4px solid var(--color-secondary); }
.task-three { border-top: 4px solid var(--color-success); }

.task-title {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.task-description {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}
.cost-display {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.cost-badge {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  opacity: 0.7;
}
.cost-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-primary);
}
.counter {
  font-variant-numeric: tabular-nums;
}

/* 9. Fórmula */
.formula-box {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-4);
  border: 1px dashed var(--color-border);
}
.formula-display {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 2rem;
}
.formula-term {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-weight: 500;
}
.formula-sign {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 2.4rem;
}
.formula-result {
  font-weight: 700;
  color: var(--color-primary);
}
.hourly-rate {
  text-align: center;
}
.rate-label {
  font-size: 1.4rem;
  color: var(--color-text-secondary);
}
.rate-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 var(--space-2);
}
.rate-note {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* 10. Grid de pérdidas */
.loss-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.loss-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.loss-label {
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}
.loss-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-primary);
}
.loss-total {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  margin-top: var(--space-4);
}
.total-label {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-text);
}
.total-value {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* 11. Soluciones */
.solution-calc {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-4);
  text-align: center;
}
.calc-step {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 2rem;
}
.calc-term {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-weight: 500;
}
.calc-sign {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 2.4rem;
}
.calc-result {
  font-weight: 700;
  color: var(--color-primary);
}
.calc-note {
  font-size: 1.4rem;
  color: var(--color-text-secondary);
  opacity: 0.8;
}

/* 12. CTA */
.cta-card {
  text-align: center;
  padding: var(--space-6);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  margin-top: var(--space-6);
}
.cta-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  margin-bottom: var(--space-3);
}
.cta-text {
  font-size: 1.6rem;
  opacity: 0.9;
  margin-bottom: var(--space-4);
}
.cta-button {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  background: white;
  color: var(--color-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: transform var(--duration-fast) ease;
}
.cta-button:hover {
  transform: translateY(-2px);
}

/* 13. Media queries */
@media (max-width: 768px) {
  .infografia-section { padding: var(--space-4); }
  .task-card-grid, .loss-grid { grid-template-columns: 1fr; }
  .loss-total { flex-direction: column; gap: var(--space-3); text-align: center; }
  .total-value { font-size: 2.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .infografia-section { opacity: 1; transform: none; }
}