/**
 * Fijate Tools - Planificador de nutrición intra-entreno y avituallamiento
 * Hojas de estilo canónicas con tokens semánticos, diseño responsivo y modo oscuro/claro
 */

:root {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Paleta cromática modo oscuro (por defecto) */
  --bg-page: #0b0f17;
  --bg-card: #111827;
  --bg-card-subtle: #162032;
  --bg-card-elevated: #1e293b;
  --border-color: #273549;
  --border-focus: #3b82f6;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-glow: rgba(59, 130, 246, 0.2);

  --color-accent: #10b981;
  --color-accent-subtle: rgba(16, 185, 129, 0.15);
  --color-warning: #f59e0b;
  --color-warning-subtle: rgba(245, 158, 11, 0.15);
  --color-danger: #ef4444;
  --color-danger-subtle: rgba(239, 68, 68, 0.15);
  --color-cyan: #06b6d4;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition: all 0.2s ease-in-out;
}

/* Modo claro */
body[data-theme="light"] {
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-card-elevated: #e2e8f0;
  --border-color: #cbd5e1;
  --border-focus: #2563eb;

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

  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-glow: rgba(37, 99, 235, 0.15);

  --color-accent: #059669;
  --color-accent-subtle: rgba(5, 150, 105, 0.12);
  --color-warning: #d97706;
  --color-warning-subtle: rgba(217, 119, 6, 0.12);
  --color-danger: #dc2626;
  --color-danger-subtle: rgba(220, 38, 38, 0.12);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Base y contención universal */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-main);
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6,
.brand-title,
.tool-heading,
.card-subtitle,
.results-main-title,
.guide-main-heading,
.timeline-title {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0;
  line-height: 1.25;
}

.mono, code, .estimated-val, .kpi-num, .split-val, .timeline-time-badge, .unit-tag {
  font-family: var(--font-mono);
}

/* Layout principal */
.main-wrapper.tool-layout {
  width: 100%;
  max-width: 1240px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
}

@media (min-width: 1536px) {
  .tool-with-sidebar {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 2rem;
  }

  .tool-main-content {
    flex: 1 1 0%;
    min-width: 0;
    max-width: calc(100% - 332px);
  }

  .tool-ad-sidebar {
    width: 300px;
    flex-shrink: 0;
  }
}

.tool-main-content {
  width: 100%;
  min-width: 0;
}

/* Tarjeta contenedora principal */
.card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-md);
  margin-top: 1rem;
  width: 100%;
}

@media (min-width: 768px) {
  .card-main {
    padding: 2.25rem 2rem;
  }
}

/* Introducción */
.tool-intro-box {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.tool-heading {
  font-size: 1.5rem;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

@media (min-width: 768px) {
  .tool-heading {
    font-size: 1.85rem;
  }
}

.tool-lead {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  max-width: 900px;
}

/* Selector de disciplina (Pills táctiles) */
.sport-selector-container {
  margin-bottom: 2rem;
}

.section-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  text-transform: none;
}

.sport-pills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

@media (min-width: 768px) {
  .sport-pills-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.sport-pill-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.sport-pill-btn:hover {
  background: var(--bg-card-elevated);
  border-color: var(--border-focus);
}

.sport-pill-btn.active {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

/* Formulario principal en dos columnas */
.form-columns-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 900px) {
  .form-columns-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.form-section-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.full-width-card {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
}

.section-badge-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.card-subtitle {
  font-size: 1.1rem;
  color: var(--text-main);
}

.step-caption {
  font-size: 0.82rem;
  color: var(--text-muted);
  width: 100%;
  margin-left: 32px;
}

/* Grupos de campos y controles táctiles */
.form-field-group {
  margin-bottom: 1.25rem;
}

.form-field-group:last-child {
  margin-bottom: 0;
}

.field-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.field-hint {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Fila de horas y minutos / unidades */
.time-inputs-row,
.climate-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 0.5rem;
}

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

.calc-input {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  height: 42px;
  min-height: 42px;
  padding: 0.5rem 3.5rem 0.5rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
}

.calc-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.unit-tag {
  position: absolute;
  right: 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  pointer-events: none;
  font-weight: 500;
  user-select: none;
}

/* Presets rápidos */
.quick-presets-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.btn-preset,
.btn-preset-climate {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.6rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}

.btn-preset:hover,
.btn-preset-climate:hover {
  background: var(--bg-card-elevated);
  color: var(--text-main);
  border-color: var(--border-focus);
}

.btn-preset.active,
.btn-preset-climate.active {
  background: var(--color-primary-glow);
  color: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 600;
}

/* Desplegables <select> conformes a normas de responsividad */
.calc-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 42px;
  min-height: 42px;
  padding: 0 40px 0 0.85rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
  transition: var(--transition);
}

.calc-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.calc-select option {
  background: var(--bg-card);
  color: var(--text-main);
  padding: 0.5rem;
}

.calc-select-mini {
  height: 34px;
  min-height: 34px;
  padding: 0 32px 0 0.65rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.82rem;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}

/* Modos de cálculo de sudoración */
.sweat-mode-toggle-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tab-switch-group {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.btn-switch-tab {
  border: none;
  background: transparent;
  padding: 0.3rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  transition: var(--transition);
}

.btn-switch-tab.active {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
}

.subpanel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
}

.subpanel-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 0.6rem 0;
  line-height: 1.45;
}

.estimated-sweat-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  background: var(--bg-card-subtle);
  border-radius: var(--radius-sm);
}

.estimated-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.estimated-val {
  font-size: 1.15rem;
  color: var(--color-cyan);
  font-weight: 700;
}

.test-fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.full-width-field {
  grid-column: 1 / -1;
}

.btn-secondary-action {
  width: 100%;
  min-height: 40px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.test-result-alert {
  margin-top: 0.6rem;
  padding: 0.6rem 0.75rem;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-main);
}

/* Grid de selección de formatos de producto */
.products-selection-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .products-selection-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .products-selection-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.product-toggle-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.product-toggle-card:hover {
  border-color: var(--border-focus);
}

.custom-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  cursor: pointer;
}

.toggle-card-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
}

.toggle-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 0.2rem;
}

/* Botón de acción principal táctil 100% */
.action-btn-row {
  margin-top: 1rem;
}

.btn-primary-action {
  width: 100%;
  min-height: 50px;
  padding: 0.85rem 1.5rem;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border: none;
  border-radius: var(--radius-md);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: var(--transition);
}

.btn-primary-action:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.45);
}

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

/* Zona de resultados y KPIs */
.results-container {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 2px dashed var(--border-color);
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.results-main-title {
  font-size: 1.35rem;
  color: var(--text-main);
}

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

.btn-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 36px;
  padding: 0.4rem 0.85rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-action-pill:hover {
  background: var(--bg-card-elevated);
  border-color: var(--border-focus);
}

/* Cuadrícula de KPIs */
.kpi-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .kpi-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .kpi-cards-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.kpi-card {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  min-width: 0;
}

.kpi-card.highlight-card {
  border-color: rgba(59, 130, 246, 0.5);
  background: linear-gradient(180deg, var(--bg-card-subtle), rgba(59, 130, 246, 0.08));
}

.kpi-icon-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  gap: 0.5rem;
}

.kpi-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.kpi-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-full);
}

.kpi-badge.info-badge {
  background: var(--color-primary-glow);
  color: var(--color-primary);
}

.kpi-badge.warning-badge {
  background: var(--color-warning-subtle);
  color: var(--color-warning);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}

.kpi-num {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.kpi-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-subtext {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 0.4rem;
}

.kpi-ratio-tag,
.kpi-pacing-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-top: 0.4rem;
  align-self: flex-start;
}

.kpi-split-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0.4rem 0 0.6rem 0;
}

.kpi-split-col {
  background: var(--bg-card);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
}

.split-name {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.split-val {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0.1rem 0;
}

.split-sub {
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* Alerta de seguridad y tolerancia */
.safety-alert-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
}

.safety-alert-card.info-theme {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.08);
}

.safety-alert-card.warning-theme {
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
}

.alert-icon {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

.safety-alert-card.warning-theme .alert-icon {
  color: var(--color-warning);
}

.alert-title {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.alert-message {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

/* Pack del dorsal / corredor */
.equipment-pack-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
}

.pack-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.pack-items-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .pack-items-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .pack-items-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.pack-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pack-item-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-card-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.pack-item-count {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-mono);
  line-height: 1;
}

.pack-item-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 0.15rem;
}

/* Cronograma de carrera (Timeline visual) */
.timeline-container-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
}

.timeline-header-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.timeline-title {
  font-size: 1.15rem;
  color: var(--text-main);
}

.timeline-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0.2rem 0 0 0;
}

.timeline-interval-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.timeline-track {
  position: relative;
  padding-left: 1.5rem;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 14px;
  width: 2px;
  background: var(--border-color);
}

.timeline-node {
  position: relative;
  margin-bottom: 1.25rem;
}

.timeline-node:last-child {
  margin-bottom: 0;
}

.timeline-node-bullet {
  position: absolute;
  left: -1.5rem;
  top: 12px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 2px var(--color-primary-glow);
  z-index: 2;
}

.timeline-node.pre-start .timeline-node-bullet {
  background: var(--color-cyan);
}

.timeline-node.finish-node .timeline-node-bullet {
  background: var(--color-accent);
}

.timeline-card-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  margin-left: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 640px) {
  .timeline-card-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.timeline-time-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.timeline-time-badge {
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--bg-card-elevated);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
}

.timeline-time-badge.pre-badge {
  background: var(--color-cyan);
  color: #0b0f17;
}

.timeline-action-text {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.timeline-details-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.timeline-intake-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg-card-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.timeline-accumulated {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* Escaparate de afiliados */
.affiliate-showcase-wrapper {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

/* Acordeón de FAQs SEO */
.seo-guide-section {
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.guide-main-heading {
  font-size: 1.3rem;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item[open] {
  border-color: var(--border-focus);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.chevron-icon {
  flex-shrink: 0;
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.faq-item[open] .chevron-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-answer p {
  margin: 0 0 0.75rem 0;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul,
.faq-answer ol {
  margin: 0.5rem 0 0.75rem 1.25rem;
  padding: 0;
}

.faq-answer li {
  margin-bottom: 0.4rem;
}

/* Modal canónico de alertas y confirmaciones */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modalScale 0.2s ease-out;
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

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

.modal-heading {
  font-size: 1.1rem;
  color: var(--text-main);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
}

.modal-close-btn:hover {
  color: var(--text-main);
  background: var(--bg-card-subtle);
}

.modal-body {
  padding: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

/* Hoja de estilos para impresión (@media print) */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .fijate-footer,
  .action-btn-row,
  .results-actions-top,
  .affiliate-showcase-wrapper,
  .seo-guide-section,
  .sport-selector-container,
  .calculator-form,
  .modal-overlay {
    display: none !important;
  }

  .main-wrapper.tool-layout {
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .card-main {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
  }

  .results-container {
    display: block !important;
    border-top: none !important;
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .kpi-card,
  .equipment-pack-box,
  .timeline-container-box,
  .timeline-card-content {
    background: #ffffff !important;
    border: 1px solid #cccccc !important;
    color: #000000 !important;
    box-shadow: none !important;
  }

  .kpi-num,
  .results-main-title,
  .pack-title,
  .timeline-title,
  .timeline-action-text {
    color: #000000 !important;
  }
}