/* ==========================================================================
   HOJA DE ESTILOS — VIRALIDAD ORGÁNICA INSTAGRAM (APC, RI & HIGH-TICKET)
   Tema Oficial ArduinoHN Métricas (Limpio, Moderno, Modo Claro)
   ========================================================================== */

:root {
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* ArduinoHN Brand Palette */
  --color-primary: #00979C;
  --color-primary-dark: #005C5F;
  --color-primary-light: rgba(0, 151, 156, 0.1);
  --color-accent: #E47128;
  --color-accent-hover: #c95e1c;
  --color-blue: #0284c7;
  --color-purple: #7c3aed;
  --color-green: #10b981;
  --color-amber: #f59e0b;
  --color-red: #ef4444;

  /* Neutrals */
  --bg-main: #F7F9F9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f8fafc;
  --border-subtle: rgba(0, 151, 156, 0.18);
  --border-muted: #e2e8f0;

  --text-primary: #212529;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 12% 12%, rgba(0, 151, 156, 0.04) 0%, transparent 45%),
    radial-gradient(circle at 88% 88%, rgba(228, 113, 40, 0.03) 0%, transparent 45%);
  background-attachment: fixed;
}

/* ==========================================================================
   HEADER & NAVEGACIÓN POR PESTAÑAS
   ========================================================================== */
.app-header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.header-container {
  max-width: 1540px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 8px rgba(0, 151, 156, 0.35);
  flex-shrink: 0;
}

.brand-titles h1 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  background: rgba(228, 113, 40, 0.12);
  color: var(--color-accent);
  border: 1px solid rgba(228, 113, 40, 0.3);
}

.sync-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  background: rgba(0, 151, 156, 0.12);
  color: var(--color-primary);
  border: 1px solid rgba(0, 151, 156, 0.3);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.35rem 0;
}

.nav-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-tab-btn:hover {
  background: rgba(0, 151, 156, 0.07);
  color: var(--color-primary);
}

.nav-tab-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 151, 156, 0.3);
}

.tab-counter {
  font-size: 0.7rem;
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-weight: 700;
}

.nav-tab-btn:not(.active) .tab-counter {
  background: #e2e8f0;
  color: #475569;
}

/* ==========================================================================
   LAYOUT, TARJETAS Y UTILIDADES
   ========================================================================== */
.main-content {
  max-width: 1540px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
}

.glass-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-md);
}

.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-muted);
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.section-title svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* Banners de metodología */
.methodology-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  background: linear-gradient(135deg, rgba(0, 151, 156, 0.08), rgba(228, 113, 40, 0.06));
  border: 1px solid rgba(0, 151, 156, 0.25);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.methodology-banner strong {
  color: var(--color-primary-dark);
}

/* ==========================================================================
   KPI CARDS & GRIDS
   ========================================================================== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
  overflow: hidden;
}

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

.kpi-card.accent::before { background: var(--color-accent); }
.kpi-card.green::before { background: var(--color-green); }
.kpi-card.blue::before { background: var(--color-blue); }
.kpi-card.purple::before { background: var(--color-purple); }
.kpi-card.red::before { background: var(--color-red); }

.kpi-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.kpi-value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
}

.kpi-sub {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.35rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

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

@media (max-width: 1024px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FORMULARIOS, BOTONES Y CONTROLES
   ========================================================================== */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-hint {
  display: block;
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.form-control, .form-select, .form-textarea {
  width: 100%;
  padding: 0.58rem 0.85rem;
  font-family: var(--font-family);
  font-size: 0.88rem;
  color: var(--text-primary);
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 151, 156, 0.14);
}

.form-textarea {
  min-height: 82px;
  resize: vertical;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.05rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 151, 156, 0.25);
}

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

.btn-accent {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(228, 113, 40, 0.25);
}

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

.btn-outline {
  background: #ffffff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: rgba(0, 151, 156, 0.08);
}

.btn-secondary {
  background: #f1f5f9;
  color: #334155;
  border-color: #cbd5e1;
}

.btn-secondary:hover {
  background: #e2e8f0;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border-color: rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
  background: #ef4444;
  color: #ffffff;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.76rem;
}

/* ==========================================================================
   BADGES & ETIQUETAS DE ESTADO
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.badge-teal {
  background: rgba(0, 151, 156, 0.12);
  color: #00797d;
  border: 1px solid rgba(0, 151, 156, 0.3);
}

.badge-orange {
  background: rgba(228, 113, 40, 0.12);
  color: #c25511;
  border: 1px solid rgba(228, 113, 40, 0.3);
}

.badge-green {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.14);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-red {
  background: rgba(239, 68, 68, 0.12);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-purple {
  background: rgba(124, 58, 237, 0.12);
  color: #6d28d9;
  border: 1px solid rgba(124, 58, 237, 0.3);
}

/* ==========================================================================
   SLIDERS Y ESCALAS DE EVALUACIÓN (CHECKLIST 8 PUNTOS)
   ========================================================================== */
.criteria-slider-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  transition: var(--transition);
}

.criteria-slider-card:hover {
  border-color: rgba(0, 151, 156, 0.4);
  background: #ffffff;
}

.criteria-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.criteria-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
}

.criteria-score-pill {
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--color-primary);
  color: #ffffff;
}

.range-slider {
  width: 100%;
  accent-color: var(--color-primary);
  cursor: pointer;
  margin: 0.35rem 0;
}

/* ==========================================================================
   TARJETAS DIDÁCTICAS (FLASHCARDS INTERACTIVAS)
   ========================================================================== */
.flashcards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.flashcard {
  background: linear-gradient(145deg, #ffffff, #f8fafc);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  min-height: 155px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.flashcard:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.flashcard.flipped {
  background: linear-gradient(145deg, #f0fdfa, #ffffff);
  border-color: var(--color-primary);
}

/* ==========================================================================
   TABLAS DE DATOS Y MATRICES
   ========================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.data-table th {
  text-align: left;
  padding: 0.75rem 0.85rem;
  background: #f1f5f9;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 2px solid #cbd5e1;
}

.data-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid #e2e8f0;
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: rgba(0, 151, 156, 0.03);
}

/* ==========================================================================
   ESTRUCTURA DE GUIONES 5 PARTES & CONCIENCIA
   ========================================================================== */
.script-step-box {
  border-left: 4px solid var(--color-primary);
  background: #f8fafc;
  padding: 0.9rem 1.1rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 0.9rem;
}

.script-step-box.step-1 { border-left-color: #ef4444; }
.script-step-box.step-2 { border-left-color: #f59e0b; }
.script-step-box.step-3 { border-left-color: #00979C; }
.script-step-box.step-4 { border-left-color: #0284c7; }
.script-step-box.step-5 { border-left-color: #10b981; }

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.toast {
  background: #0f172a;
  color: #ffffff;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border-left: 4px solid var(--color-primary);
  animation: slideIn 0.25s ease-out;
}

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