/* ==========================================================================
   Calculadora de OEE y Eficiencia de Planta Industrial - fijate.com
   Estilos Canónicos - Cumple Normas de Accesibilidad, Modo Oscuro y Móvil
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Tema Claro (por defecto) */
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #0ea5e9;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --accent-primary: #0ea5e9;
  --accent-primary-hover: #0284c7;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-purple: #8b5cf6;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

[data-theme="dark"] {
  --bg-body: #0b0f17;
  --bg-card: #131b2e;
  --bg-card-subtle: #1a243a;
  --bg-input: #0f172a;
  --border-color: #24324f;
  --border-focus: #38bdf8;

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

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.45);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  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-main);
}

.mono {
  font-family: var(--font-mono);
}

/* Layout Canónico de Herramienta */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Barra superior de presets sectoriales */
.tool-top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

.presets-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.presets-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 0.25rem;
}

.btn-preset {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-preset:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-preset.active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  font-weight: 600;
}

.top-bar-actions {
  display: flex;
  gap: 0.5rem;
}

/* Secciones y tarjetas */
.card-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.875rem;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
}

.section-title {
  font-size: 1.125rem;
  line-height: 1.3;
}

.section-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Cuadrículas de formulario */
.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.form-label small {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-dim);
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-with-unit input {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.55rem 3.5rem 0.55rem 0.75rem;
  min-height: 42px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-with-unit input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.input-unit-badge {
  position: absolute;
  right: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  background-color: var(--bg-card-subtle);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
  border: 1px solid var(--border-color);
}

/* Banner de clasificación WCM */
.wcm-status-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card-subtle);
  gap: 1.5rem;
}

.wcm-status-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.wcm-status-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 12px currentColor;
}

.wcm-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.wcm-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.wcm-oee-badge {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  text-align: right;
  white-space: nowrap;
}

/* KPIs de OEE y costes */
.kpis-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.kpi-card {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--accent-primary);
}

.kpi-card.kpi-success::before { background-color: var(--accent-success); }
.kpi-card.kpi-warning::before { background-color: var(--accent-warning); }
.kpi-card.kpi-danger::before { background-color: var(--accent-danger); }
.kpi-card.kpi-purple::before { background-color: var(--accent-purple); }

.kpi-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Tablas interactivas y 6 grandes pérdidas */
.table-responsive-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.dynamic-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  text-align: left;
}

.dynamic-table th {
  background-color: var(--bg-card-subtle);
  color: var(--text-dim);
  font-weight: 600;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.dynamic-table td {
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.dynamic-table tbody tr:hover {
  background-color: rgba(14, 165, 233, 0.03);
}

/* Gráficos Canvas 2D */
.chart-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

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

.chart-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.chart-canvas-wrapper {
  position: relative;
  width: 100%;
  min-height: 220px;
}

.chart-canvas-wrapper canvas {
  width: 100%;
  height: 220px;
  display: block;
}

/* Botones de acción canónicos */
.btn-primary {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  background-color: var(--accent-primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background-color 0.15s ease, transform 0.1s ease;
  min-height: 40px;
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
}

.btn-secondary {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.15s ease;
  min-height: 40px;
}

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

.btn-action-sm {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.15s ease;
}

.btn-action-sm:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Modales */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(11, 15, 23, 0.7);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.125rem;
}

.btn-close-modal {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-dim);
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.modal-footer {
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.formula-box {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-main);
  overflow-x: auto;
}

/* Adaptación responsive */
@media (max-width: 1024px) {
  .kpis-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tool-layout {
    padding: 0 0.75rem;
  }
  .form-grid-3, .form-grid-4, .form-grid-2 {
    grid-template-columns: 1fr;
  }
  .wcm-status-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .wcm-oee-badge {
    align-self: flex-start;
  }
  .kpis-grid {
    grid-template-columns: 1fr;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
  }
}