/* ═══════════════════════════════════════════════════════════════════
   calc-zonas.css — salgoacorrer.com
   Estilos del widget calculadora de zonas de entrenamiento.
   Carga condicional: solo en el artículo zonas-entrenamiento.
   Ruta: /public_html/assets/css/calc-zonas.css
═══════════════════════════════════════════════════════════════════ */

/* ── Colores de zona (dots y texto) ───────────────────────────────── */
.z1 { color: #3b82f6; }
.z2 { color: #22c55e; }
.z3 { color: #eab308; }
.z4 { color: #f97316; }
.z5 { color: #ef4444; }

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.dot-z1 { background: #3b82f6; }
.dot-z2 { background: #22c55e; }
.dot-z3 { background: #eab308; }
.dot-z4 { background: #f97316; }
.dot-z5 { background: #ef4444; }

/* ── Method comparison cards ──────────────────────────────────────── */
.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}
.method-card {
  background: var(--c-surface, #fff);
  border: 1px solid var(--c-border, #ddd8d0);
  border-radius: 10px;
  padding: 1.25rem;
  border-top: 3px solid var(--c-accent, #e8472a);
}
.method-card h4 {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: 1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--c-dark, #0f1923);
  margin-bottom: .5rem;
}
.method-card p {
  font-size: .88rem;
  color: var(--c-muted, #5a6a7a);
  margin: 0;
  line-height: 1.5;
}
.method-card .pros {
  color: #22c55e;
  font-size: .8rem;
  font-weight: 600;
  margin-top: .6rem;
  display: block;
}
.method-card .cons {
  color: var(--c-accent, #e8472a);
  font-size: .8rem;
  font-weight: 600;
  margin-top: .2rem;
  display: block;
}

/* ── Calculadora wrapper ──────────────────────────────────────────── */
.calc-wrapper {
  background: var(--c-dark, #0f1923);
  border-radius: 14px;
  overflow: hidden;
  margin: 2.5rem 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .18);
}

.calc-header {
  background: var(--c-accent, #e8472a);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 12px;
}
.calc-header-icon {
  font-size: 1.4rem;
  line-height: 1;
}
.calc-header-text h3 {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #fff;
  margin: 0;
}
.calc-header-text p {
  font-size: .8rem;
  color: rgba(255, 255, 255, .75);
  margin: 0;
}

.calc-body { padding: 1.75rem; }

/* ── Tabs ─────────────────────────────────────────────────────────── */
.calc-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.calc-tab {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, .15);
  background: transparent;
  color: rgba(255, 255, 255, .5);
  cursor: pointer;
  transition: all .2s;
}
.calc-tab:hover {
  border-color: rgba(255, 255, 255, .4);
  color: rgba(255, 255, 255, .8);
}
.calc-tab.active {
  background: var(--c-accent, #e8472a);
  border-color: var(--c-accent, #e8472a);
  color: #fff;
}

/* ── Panels e inputs ──────────────────────────────────────────────── */
.calc-panel { display: none; }
.calc-panel.active { display: block; }

.calc-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.calc-field label {
  display: block;
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 6px;
}
.calc-field input,
.calc-field select {
  width: 100%;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 6px;
  padding: 10px 14px;
  color: #fff;
  font-family: var(--f-body, 'DM Sans', sans-serif);
  font-size: 1rem;
  outline: none;
  transition: border-color .2s;
  -webkit-appearance: none;
}
.calc-field input:focus,
.calc-field select:focus { border-color: var(--c-accent, #e8472a); }
.calc-field input::placeholder { color: rgba(255, 255, 255, .25); }
.calc-field select option { background: var(--c-dark, #0f1923); color: #fff; }

.calc-hint {
  font-size: .8rem;
  color: rgba(255, 255, 255, .35);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

/* ── Botón calcular ───────────────────────────────────────────────── */
.calc-btn {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: .9rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: var(--c-accent, #e8472a);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 12px 28px;
  cursor: pointer;
  transition: opacity .2s, transform .1s;
}
.calc-btn:hover { opacity: .88; }
.calc-btn:active { transform: scale(.97); }

/* ── Resultados ───────────────────────────────────────────────────── */
.calc-results {
  margin-top: 1.5rem;
  display: none;
}
.calc-results.visible { display: block; }

.results-title {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .4);
  margin-bottom: .85rem;
}

.zone-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.zone-card {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, .06);
  border-radius: 8px;
  padding: 12px 16px;
  border-left: 3px solid transparent;
  transition: background .2s;
}
.zone-card:hover { background: rgba(255, 255, 255, .09); }
.zone-card.z1c { border-left-color: #3b82f6; }
.zone-card.z2c { border-left-color: #22c55e; }
.zone-card.z3c { border-left-color: #eab308; }
.zone-card.z4c { border-left-color: #f97316; }
.zone-card.z5c { border-left-color: #ef4444; }

.zone-num {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  text-align: center;
}
.zone-card.z1c .zone-num { color: #3b82f6; }
.zone-card.z2c .zone-num { color: #22c55e; }
.zone-card.z3c .zone-num { color: #eab308; }
.zone-card.z4c .zone-num { color: #f97316; }
.zone-card.z5c .zone-num { color: #ef4444; }

.zone-info-name {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #fff;
  line-height: 1.2;
}
.zone-info-desc {
  font-size: .77rem;
  color: rgba(255, 255, 255, .45);
  line-height: 1.3;
  margin-top: 2px;
}

.zone-value {
  font-family: var(--f-head, 'Barlow Condensed', sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  text-align: right;
  white-space: nowrap;
}
.zone-value small {
  display: block;
  font-size: .7rem;
  color: rgba(255, 255, 255, .35);
  font-family: var(--f-body, 'DM Sans', sans-serif);
  font-weight: 400;
  text-align: right;
}

.calc-footer-note {
  margin-top: 1rem;
  font-size: .78rem;
  color: rgba(255, 255, 255, .3);
  line-height: 1.5;
}

/* ── RPE table override ───────────────────────────────────────────── */
.rpe-table td:nth-child(2) {
  color: var(--c-muted, #5a6a7a);
  font-style: italic;
  font-size: .85rem;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .calc-body { padding: 1.25rem; }
  .zone-card { grid-template-columns: 30px 1fr auto; gap: 8px; }
}