/* ============================================================
   MELANIA RODRÍGUEZ — dmt-calculadora.css
   Estilos exclusivos de la Calculadora DMT.
   Se carga DESPUÉS de css/estilos.css y reutiliza sus variables
   (--negro, --oro, --font-titulo, --transicion, etc.) y sus
   clases (.btn, .btn-oro, .btn-blanco, .btn-outline-oro,
   .section-label, .section-title, .hero-stat...).
   No modifica ninguna regla de estilos.css.
   ============================================================ */

/* ---------- HERO ---------- */
#dmt-hero {
  background: var(--negro);
  padding-bottom: 1rem;
}

.dmt-hero-content {
  padding: 8.5rem 0 3.5rem;
  max-width: 720px;
}

/* Selector de modalidad: TRA / DMT / TUM / SYN */
.discipline-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.discipline-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.15rem;
  border-radius: 100px;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-titulo);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: var(--transicion);
}

a.discipline-pill:hover { border-color: rgba(255, 215, 0, 0.5); color: var(--blanco); }

.discipline-pill.is-active {
  background: var(--oro);
  border-color: var(--oro);
  color: var(--negro);
}

.discipline-pill.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.discipline-pill em {
  font-style: normal;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.14);
  padding: 0.15rem 0.4rem;
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.6);
}

.discipline-pill.is-active em { background: rgba(0, 0, 0, 0.15); color: rgba(0, 0, 0, 0.7); }

/* ---------- SECCIÓN CALCULADORA ---------- */
#dmt-calculadora {
  padding: 6rem 0 7rem;
  background: var(--blanco);
}

.dmt-form-error {
  background: rgba(231, 76, 60, 0.08);
  border: 1px solid rgba(231, 76, 60, 0.4);
  color: #c0392b;
  padding: 1rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

/* ---------- TARJETAS SKILL 1 / SKILL 2 ---------- */
.dmt-skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.skill-card {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  background: var(--blanco);
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
  transition: var(--transicion);
}

.skill-card:hover {
  border-color: rgba(255, 215, 0, 0.4);
  box-shadow: var(--sombra);
}

.skill-card-title {
  font-size: 1.05rem;
  font-weight: 800;
}

/* Toggle Difficulty / Skill */
.toggle-group {
  display: flex;
  gap: 0.6rem;
}

.toggle-btn {
  flex: 1;
  min-height: 48px;
  border: 2px solid #e2e2e2;
  border-radius: 8px;
  background: var(--blanco);
  font-family: var(--font-titulo);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #777;
  transition: var(--transicion);
}

.toggle-btn:hover:not(.active) { border-color: #bbb; color: #333; }

.toggle-btn.active {
  background: var(--negro);
  border-color: var(--negro);
  color: var(--blanco);
}

/* Paneles Difficulty / Skill */
.skill-mode-panel {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.skill-mode-panel label {
  font-family: var(--font-titulo);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #999;
  margin-top: 0.5rem;
}

.skill-mode-panel label:first-child { margin-top: 0; }

.skill-mode-panel input,
.skill-mode-panel select {
  width: 100%;
  min-height: 48px;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1.5px solid #e0e0e0;
  font-size: 1rem;
  font-family: var(--font-cuerpo);
  color: var(--negro);
  background: var(--blanco);
  transition: var(--transicion);
}

.skill-mode-panel input:focus,
.skill-mode-panel select:focus {
  outline: none;
  border-color: var(--negro);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06);
}

.skill-mode-panel select:disabled { background: #f5f5f5; color: #aaa; cursor: not-allowed; }

/* Código + Posición, en la misma fila (versión compacta) */
.code-position-row {
  display: flex;
  gap: 0.7rem;
  align-items: flex-end;
}

.code-field { flex: 2; min-width: 0; }
.position-field { flex: 1; min-width: 84px; }

.code-position-row label { margin-top: 0; }

.code-position-row input,
.code-position-row select {
  min-height: 46px;
  padding: 0.7rem 0.8rem;
  text-align: left;
}

.code-field input { letter-spacing: 0.04em; font-variant-numeric: tabular-nums; }

.element-result {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: var(--gris-claro);
  font-size: 0.9rem;
  color: #555;
  min-height: 1rem;
}

.element-result:empty { padding: 0; min-height: 0; background: transparent; }

.element-result.has-value {
  background: rgba(255, 215, 0, 0.12);
  border: 1px solid rgba(255, 215, 0, 0.45);
  color: #333;
  font-weight: 500;
}

.element-result.has-error {
  background: rgba(231, 76, 60, 0.08);
  border: 1px solid rgba(231, 76, 60, 0.35);
  color: #c0392b;
  font-weight: 600;
}

.skill-difficulty-readout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px dashed #e6e6e6;
}

.skill-difficulty-readout span {
  font-family: var(--font-titulo);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #999;
}

.skill-difficulty-readout strong {
  font-family: var(--font-titulo);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--negro);
}

/* ---------- TOTAL DIFFICULTY ---------- */
.dmt-total-difficulty-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--negro);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin-bottom: 2.5rem;
}

.dmt-total-difficulty-box span {
  font-family: var(--font-titulo);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}

.dmt-total-difficulty-box strong {
  font-family: var(--font-titulo);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--oro);
}

/* ---------- EXECUTION / LANDING / ZONE CHANGE ---------- */
.dmt-3col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
  align-items: stretch;
}

.dmt-3col-grid .skill-card label {
  display: block;
  font-family: var(--font-titulo);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 0.6rem;
}

.dmt-3col-grid .skill-card input {
  width: 100%;
  min-height: 52px;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  border: 1.5px solid #e0e0e0;
  font-size: 1.05rem;
  font-family: var(--font-cuerpo);
  margin-bottom: 0.4rem;
}

.dmt-3col-grid .skill-card input:focus {
  outline: none;
  border-color: var(--negro);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06);
}

.dmt-mini-readouts {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding-top: 1rem;
  margin-top: auto;
  border-top: 1px dashed #e6e6e6;
}

.dmt-mini-readouts > div { display: flex; align-items: center; justify-content: space-between; }

.dmt-mini-readouts span {
  font-family: var(--font-titulo);
  font-size: 0.75rem;
  font-weight: 700;
  color: #999;
}

.dmt-mini-readouts strong { font-size: 1rem; font-weight: 800; color: var(--negro); }

/* Landing — botones grandes con color real */
.landing-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 0.3rem;
}

.landing-btn {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 56px;
  padding: 0.85rem 1.1rem;
  border-radius: 10px;
  border: 3px solid transparent;
  color: var(--blanco);
  font-family: var(--font-titulo);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  transition: var(--transicion);
}

.landing-btn small {
  margin-left: auto;
  font-weight: 700;
  font-size: 0.8rem;
  opacity: 0.9;
}

.landing-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
}

.landing-red    { background: #E4362E; }
.landing-yellow { background: #F2B705; color: #3a2a00; }
.landing-blue   { background: #2262C6; }

.landing-btn:hover { filter: brightness(1.08); transform: translateY(-1px); }

.landing-btn.active {
  border-color: var(--negro);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.12);
  transform: scale(1.02);
}

/* Zone Change — botones grandes YES / NO */
.zone-buttons {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 0.3rem;
}

.zone-btn {
  flex: 1;
  min-height: 56px;
  border-radius: 10px;
  border: 2.5px solid #e2e2e2;
  background: var(--blanco);
  font-family: var(--font-titulo);
  font-weight: 800;
  font-size: 0.98rem;
  color: #444;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  transition: var(--transicion);
}

.zone-btn small { font-size: 0.72rem; font-weight: 700; color: #999; }

.zone-btn:hover { border-color: #bbb; }

.zone-btn.active { background: var(--negro); border-color: var(--negro); color: var(--blanco); }
.zone-btn.active small { color: rgba(255, 255, 255, 0.6); }

/* ---------- FINAL SCORE ---------- */
.dmt-final-score-box {
  background: linear-gradient(135deg, #050505 0%, #1c1c1c 100%);
  border: 2px solid var(--oro);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  margin-bottom: 2.5rem;
}

.dmt-final-score-label {
  display: block;
  font-family: var(--font-titulo);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--oro);
  margin-bottom: 1rem;
}

.dmt-final-score-box strong {
  display: block;
  font-family: var(--font-titulo);
  font-size: clamp(3.4rem, 9vw, 5.6rem);
  font-weight: 900;
  color: var(--blanco);
  line-height: 1;
  letter-spacing: -0.02em;
}

.dmt-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.dmt-actions .btn { min-height: 52px; }

.dmt-actions .btn:disabled,
#dmt-add-history:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- HISTORIAL ---------- */
#dmt-historial {
  padding: 7rem 0;
  background: var(--negro);
}

#dmt-historial .section-title { color: var(--blanco); }

.dmt-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0 3rem;
}

.dmt-stats-grid .hero-stat { min-width: 0; }

.dmt-history-empty {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.92rem;
  margin-bottom: 2rem;
}

.dmt-history-table-wrap {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  -webkit-overflow-scrolling: touch;
}

.dmt-history-table { width: 100%; border-collapse: collapse; min-width: 760px; }

.dmt-history-table th,
.dmt-history-table td {
  padding: 0.9rem 1.1rem;
  text-align: left;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  white-space: nowrap;
}

.dmt-history-table th {
  font-family: var(--font-titulo);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.03);
}

.dmt-history-table tbody tr:hover { background: rgba(255, 215, 0, 0.04); }

.dmt-history-table td.cell-final {
  font-weight: 800;
  color: var(--oro);
  font-size: 1rem;
}

.tag-landing {
  display: inline-block;
  padding: 0.22rem 0.75rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--blanco);
}

.tag-red    { background: #E4362E; }
.tag-yellow { background: #F2B705; color: #3a2a00; }
.tag-blue   { background: #2262C6; }

.row-delete {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.55);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: var(--transicion);
}

.row-delete:hover { background: rgba(231, 76, 60, 0.25); border-color: #e74c3c; color: var(--blanco); }

/* Tarjetas de historial — solo visibles en móvil (ver media query) */
.dmt-history-cards { display: none; flex-direction: column; gap: 1rem; }

.history-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
}

.history-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.history-card-num {
  font-family: var(--font-titulo);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.history-card-final {
  font-family: var(--font-titulo);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--oro);
}

.history-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.2rem 1rem;
  margin-bottom: 1rem;
}

.history-card-body dt {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-titulo);
  font-weight: 700;
  margin-top: 0.5rem;
}

.history-card-body dd {
  font-size: 0.9rem;
  color: var(--blanco);
  margin-bottom: 0.2rem;
}

.row-delete-card {
  width: 100%;
  height: auto;
  border-radius: 8px;
  padding: 0.65rem;
  font-family: var(--font-titulo);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.35);
  color: #ff6b5e;
}

.row-delete-card:hover { background: rgba(231, 76, 60, 0.25); }

/* ---------- INFO / SEO ---------- */
#dmt-info { padding: 6rem 0 7rem; background: var(--blanco); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .dmt-skills-grid { grid-template-columns: 1fr; }
  .dmt-3col-grid { grid-template-columns: 1fr; }
  .dmt-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .dmt-hero-content { padding: 7.5rem 0 3rem; }
  #dmt-calculadora { padding: 4rem 0 5rem; }
  #dmt-historial { padding: 5rem 0; }
  #dmt-info { padding: 4rem 0 5rem; }

  .dmt-final-score-box { padding: 2.2rem 1.2rem; }
  .dmt-actions { flex-direction: column; }
  .dmt-actions .btn { width: 100%; justify-content: center; }

  /* Historial: tabla → tarjetas en móvil */
  .dmt-history-table-wrap { display: none; }
  .dmt-history-cards { display: flex; }

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

@media (max-width: 480px) {
  .zone-buttons { flex-direction: column; }
  .toggle-btn { font-size: 0.72rem; padding: 0.6rem; }
  .dmt-total-difficulty-box { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}