/* ============================================================
   PRECIO DE LA LUZ HOY (PVPC EN TIEMPO REAL) - FIJATE TOOLS
   Estilos principales y soporte completo Dark / Light Mode
   ============================================================ */

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

  /* Colores temáticos dinámicos (Dark por defecto) */
  --bg-body: #0a0f1d;
  --bg-card: #11192e;
  --bg-card-header: #17223b;
  --bg-input: #090e1c;
  --bg-hover: #1b2848;

  --border-color: #1e2c4d;
  --border-color-light: #283a66;

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

  --primary-color: #ff8507;
  --primary-hover: #e07200;
  --primary-glow: rgba(255, 133, 7, 0.25);

  --color-valle: #10b981;
  --color-valle-bg: rgba(16, 185, 129, 0.12);
  --color-valle-border: rgba(16, 185, 129, 0.35);

  --color-llano: #f59e0b;
  --color-llano-bg: rgba(245, 158, 11, 0.12);
  --color-llano-border: rgba(245, 158, 11, 0.35);

  --color-punta: #ef4444;
  --color-punta-bg: rgba(239, 68, 68, 0.12);
  --color-punta-border: rgba(239, 68, 68, 0.35);

  --color-info: #38bdf8;
  --color-info-bg: rgba(56, 189, 248, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 24px rgba(255, 133, 7, 0.15);
}

[data-theme="light"] {
  --bg-body: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-header: #f8fafc;
  --bg-input: #f1f5f9;
  --bg-hover: #e2e8f0;

  --border-color: #e2e8f0;
  --border-color-light: #cbd5e1;

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

  --primary-color: #ff8507;
  --primary-hover: #e07200;
  --primary-glow: rgba(255, 133, 7, 0.2);

  --color-valle: #059669;
  --color-valle-bg: #ecfdf5;
  --color-valle-border: #a7f3d0;

  --color-llano: #d97706;
  --color-llano-bg: #fffbeb;
  --color-llano-border: #fde68a;

  --color-punta: #dc2626;
  --color-punta-bg: #fef2f2;
  --color-punta-border: #fecaca;

  --color-info: #0284c7;
  --color-info-bg: #f0f9ff;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(255, 133, 7, 0.1);
}

/* Reset y Reglas Base */
*, *::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);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

h1, h2, h3, h4, .brand-title {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
}

.main-content {
  flex: 1 0 auto;
  width: 100%;
  padding: 1.5rem 1rem 3rem;
}

.content-wrapper {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* ============================================================
   PANEL DE CONTROL Y FILTROS
   ============================================================ */
.control-panel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1.25rem;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

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

.date-toggle-group {
  background: var(--bg-input);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: inline-flex;
}

.btn-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-toggle:hover {
  color: var(--text-main);
}

.btn-toggle.is-active {
  background: var(--primary-color);
  color: #0b0f17 !important;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.badge-mini {
  font-size: 0.7rem;
  padding: 0.15rem 0.4rem;
  border-radius: 9999px;
  background: var(--border-color);
  color: var(--text-secondary);
  font-weight: 700;
  font-family: var(--font-mono);
}

.btn-toggle.is-active .badge-mini {
  background: rgba(0, 0, 0, 0.25);
  color: #0b0f17;
}

.select-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 38px;
  padding: 0 2.25rem 0 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 0.2s ease;
}

.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.select-chevron {
  position: absolute;
  right: 0.75rem;
  pointer-events: none;
  color: var(--text-secondary);
}

.live-clock-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-valle);
}

.pulse {
  animation: pulse-ring 2s infinite ease-in-out;
}

@keyframes pulse-ring {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 10px var(--color-valle); }
  100% { transform: scale(0.9); opacity: 0.8; }
}

/* Encabezado de Fecha y Fuente */
.page-meta-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: -0.5rem;
}

.date-display {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ============================================================
   BENTO GRID (DASHBOARD EN DIRECTO)
   ============================================================ */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.bento-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-color-light);
}

.bento-card-hero {
  grid-column: span 5;
  background: linear-gradient(145deg, var(--bg-card) 0%, rgba(255, 133, 7, 0.05) 100%);
  border-color: rgba(255, 133, 7, 0.35);
  box-shadow: var(--shadow-glow);
}

.bento-card-min {
  grid-column: span 2;
  border-left: 4px solid var(--color-valle);
}

.bento-card-max {
  grid-column: span 2;
  border-left: 4px solid var(--color-punta);
}

.bento-card-avg {
  grid-column: span 3;
  border-left: 4px solid var(--color-info);
}

.bento-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.bento-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-color);
  box-shadow: 0 0 8px var(--primary-color);
  animation: pulse-ring 1.8s infinite;
}

.bento-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-success { background: var(--color-valle-bg); color: var(--color-valle); }
.icon-danger { background: var(--color-punta-bg); color: var(--color-punta); }
.icon-info { background: var(--color-info-bg); color: var(--color-info); }

.bento-title {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-period {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.period-valle { background: var(--color-valle-bg); color: var(--color-valle); border: 1px solid var(--color-valle-border); }
.period-llano { background: var(--color-llano-bg); color: var(--color-llano); border: 1px solid var(--color-llano-border); }
.period-punta { background: var(--color-punta-bg); color: var(--color-punta); border: 1px solid var(--color-punta-border); }

/* Hero Price Layout */
.hero-price-container {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0.25rem 0 0.75rem;
}

.hero-price-val {
  font-family: var(--font-mono);
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.hero-price-unit {
  display: flex;
  flex-direction: column;
}

.unit-main {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-color);
}

.unit-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.badge-success { background: var(--color-valle-bg); color: var(--color-valle); }
.badge-teal { background: var(--color-info-bg); color: var(--color-info); }
.badge-warning { background: var(--color-llano-bg); color: var(--color-llano); }
.badge-orange { background: rgba(249, 115, 22, 0.15); color: #f97316; }
.badge-danger { background: var(--color-punta-bg); color: var(--color-punta); }

.hour-countdown {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  color: var(--text-muted);
}

.hour-progress-track {
  width: 100%;
  height: 4px;
  background: var(--border-color);
  border-radius: 9999px;
  overflow: hidden;
}

.hour-progress-fill {
  height: 100%;
  background: var(--primary-color);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

/* Métricas Secundarias */
.metric-highlight {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin: 0.35rem 0 0.5rem;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.1;
}

.metric-unit {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.text-success { color: var(--color-valle); }
.text-danger { color: var(--color-punta); }
.text-info { color: var(--color-info); }

.metric-time-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  width: fit-content;
}

.metric-tip {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
  margin-top: auto;
}

/* Split Row Media */
.metric-split-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.split-label {
  font-size: 0.725rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.split-divider {
  width: 1px;
  height: 38px;
  background: var(--border-color);
}

.split-highlight {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.split-sub {
  font-size: 0.725rem;
  color: var(--color-valle);
  font-weight: 600;
}

/* ============================================================
   SECCIONES Y TARJETAS GLOBALES
   ============================================================ */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.section-header-flex {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

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

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

/* ============================================================
   GRÁFICA 24 HORAS
   ============================================================ */
.chart-legend-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-valle { background: var(--color-valle); }
.dot-llano { background: var(--color-llano); }
.dot-punta { background: var(--color-punta); }

.legend-line {
  width: 14px;
  height: 3px;
  border-radius: 2px;
}

.line-avg { background: var(--color-info); }

.chart-wrapper {
  position: relative;
  width: 100%;
  min-height: 280px;
}

/* ============================================================
   TABLA / LISTADO HORARIO
   ============================================================ */
.sort-controls {
  display: inline-flex;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.25rem;
  gap: 0.25rem;
}

.btn-sort {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-sort.is-active {
  background: var(--bg-card);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

.hours-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}

.hour-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: all 0.2s ease;
  position: relative;
}

.hour-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-color-light);
  background: var(--bg-hover);
}

.hour-card.is-current {
  border: 2px solid var(--primary-color);
  background: rgba(255, 133, 7, 0.08);
  box-shadow: 0 0 12px var(--primary-glow);
}

.hour-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hour-badge-time {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.hour-badge-period {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.hour-price-row {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.hour-price-cents {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
}

.hour-price-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.hour-price-eur {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.hour-bar-track {
  width: 100%;
  height: 4px;
  background: var(--border-color);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.hour-bar-fill {
  height: 100%;
  border-radius: 9999px;
}

.loading-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   CALCULADORA DE ELECTRODOMÉSTICOS
   ============================================================ */
.appliances-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.appliance-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.appliance-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.appliance-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-color-light);
}

.appliance-btn.is-active {
  background: rgba(255, 133, 7, 0.12);
  border-color: var(--primary-color);
  box-shadow: 0 0 10px var(--primary-glow);
}

.appliance-btn-icon {
  font-size: 1.5rem;
}

.appliance-btn-info {
  display: flex;
  flex-direction: column;
}

.appliance-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.appliance-kwh {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.custom-kwh-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.input-unit-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0 0.75rem;
  height: 42px;
}

.form-input {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
}

.form-input:focus {
  outline: none;
}

.input-suffix {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Tarjeta Resultado Electrodoméstico */
.result-comparison-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100%;
}

.res-appliance-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.85rem;
}

.res-icon {
  font-size: 2rem;
}

.res-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.res-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-color);
}

.res-comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.res-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  text-align: center;
}

.res-best-badge {
  position: absolute;
  top: -9px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-valle);
  color: #0b0f17;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.res-box-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.res-box-price {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.res-box-hour {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.savings-banner {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
  border: 1px solid var(--color-valle-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.savings-icon {
  font-size: 1.5rem;
}

.savings-text {
  display: flex;
  flex-direction: column;
}

.savings-headline {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-valle);
}

.savings-headline strong {
  font-family: var(--font-mono);
  font-weight: 800;
}

.savings-sub {
  font-size: 0.775rem;
  color: var(--text-secondary);
}

/* ============================================================
   OPTIMIZADOR Y COMPARADOR DE FACTURA
   ============================================================ */
.optimizer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.optimizer-form-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.comparison-cards-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.opt-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  transition: all 0.2s ease;
}

.opt-card.is-winner {
  border-color: var(--color-valle);
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.15);
}

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

.opt-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  text-transform: uppercase;
}

.badge-pvpc { background: rgba(255, 133, 7, 0.15); color: var(--primary-color); }
.badge-fixed { background: rgba(56, 189, 248, 0.15); color: var(--color-info); }

.opt-winner-tag {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: var(--color-valle);
  color: #0b0f17;
  text-transform: uppercase;
  display: none;
}

.opt-card.is-winner .opt-winner-tag {
  display: inline-block;
}

.opt-price-box {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
}

.opt-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-muted);
}

.opt-amount {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.opt-period {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.opt-breakdown-list {
  list-style: none;
  border-top: 1px solid var(--border-color);
  padding-top: 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.opt-breakdown-list li {
  display: flex;
  justify-content: space-between;
  font-size: 0.775rem;
  color: var(--text-secondary);
}

.opt-breakdown-list li strong {
  font-family: var(--font-mono);
  color: var(--text-main);
}

.opt-summary-callout {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============================================================
   FAQ Y ACORDEÓN
   ============================================================ */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
}

.faq-question {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
}

.faq-answer {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.faq-answer ul {
  margin-left: 1.25rem;
  margin-top: 0.4rem;
}

/* ============================================================
   MODALES
   ============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 1rem;
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-md);
  transform: scale(0.95);
  transition: transform 0.25s ease;
}

.modal-backdrop.is-open .modal-card {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-title-box svg {
  color: var(--primary-color);
}

.modal-title-box h3 {
  font-size: 1.15rem;
}

.btn-modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
}

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

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-intro {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.modal-tramos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.modal-tramo-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  font-size: 0.8rem;
}

.modal-tramo-card h4 {
  font-size: 0.85rem;
  margin: 0.35rem 0;
}

.modal-tramo-card p {
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
}

.tramo-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
}

.modal-note-box {
  background: var(--bg-input);
  border-left: 3px solid var(--primary-color);
  padding: 0.65rem 0.85rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

.btn-primary {
  background: var(--primary-color);
  color: #0b0f17 !important;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================================
   RESPONSIVIDAD Y REGLAS MÓVILES
   ============================================================ */
@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .bento-card-hero { grid-column: span 6; }
  .bento-card-min { grid-column: span 2; }
  .bento-card-max { grid-column: span 2; }
  .bento-card-avg { grid-column: span 2; }

  .appliances-grid,
  .optimizer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-content {
    padding: 1rem 0.65rem 2rem;
  }

  .control-panel-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: 0.75rem;
  }

  .date-toggle-group {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .btn-toggle {
    justify-content: center;
    height: 40px;
  }

  .form-select {
    height: 40px;
  }

  .live-clock-badge {
    justify-content: center;
  }

  .bento-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .bento-card-hero,
  .bento-card-min,
  .bento-card-max,
  .bento-card-avg {
    grid-column: span 1;
  }

  .hero-price-val {
    font-size: 2.75rem;
  }

  .hours-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .appliance-tabs {
    grid-template-columns: 1fr;
  }

  .res-comparison-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .comparison-cards-wrapper {
    grid-template-columns: 1fr;
  }

  .modal-tramos-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-price-container {
    flex-direction: column;
    gap: 0.2rem;
  }

  .hours-grid {
    grid-template-columns: 1fr;
  }

  .btn-sort {
    font-size: 0.725rem;
    padding: 0.35rem 0.55rem;
  }
}