/* =========================================================================
   MEJORAS VISUALES COMPARADOR TARIFAS SOLARES v1.1
   - Performance optimizada (CORREGIDO)
   - Sin problemas de stacking context o containment
   - Modo claro/oscuro
   - Responsive mobile/desktop
   ========================================================================= */

/* === ANIMACIONES (namespace específico para evitar conflictos) === */

@keyframes solar-fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes solar-shine {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes solar-fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Respetar preferencias */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* === CARDS MEJORADAS === */

.card {
  /* Animación de entrada */
  animation: solar-fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards;

  /* CORREGIDO: position relative para ::before */
  position: relative !important;

  /* CORREGIDO: will-change solo en hover, no permanente */
  will-change: auto;

  /* CORREGIDO: Sin contain para no cortar sombras/modales */
  /* contain: layout style paint; ❌ REMOVIDO */

  /* CORREGIDO: Sin transform permanente para evitar stacking context */
  /* transform: translate3d(0, 0, 0); ❌ REMOVIDO */

  /* CORREGIDO: Sin backface-visibility para mejor antialiasing */
  /* backface-visibility: hidden; ❌ REMOVIDO */
}

/* Delays escalonados */
.card:nth-of-type(1) { animation-delay: 0.05s; }
.card:nth-of-type(2) { animation-delay: 0.10s; }
.card:nth-of-type(3) { animation-delay: 0.15s; }
.card:nth-of-type(4) { animation-delay: 0.20s; }

/* Efecto shine en hover (solo desktop) */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
  opacity: 0;
  pointer-events: none;
  z-index: 10;
  transition: opacity 0.3s ease;
}

@media (hover: hover) and (pointer: fine) {
  .card:hover {
    /* CORREGIDO: will-change solo en hover */
    will-change: transform;
    transform: translateY(-4px);
  }

  .card:hover::before {
    opacity: 1;
    animation: solar-shine 1.2s ease-in-out;
  }

  /* Limpiar will-change después */
  .card:not(:hover) {
    will-change: auto;
  }
}

/* Light mode ajuste */
.light-mode .card::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.4), transparent);
}

/* === HERO KPIS === */

.heroKpis {
  animation: solar-fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: 0.1s;
}

.heroCard {
  /* Animación entrada */
  animation: solar-fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;

  /* CORREGIDO: position relative para ::before */
  position: relative !important;
  overflow: hidden;

  /* CORREGIDO: will-change solo en hover */
  will-change: auto;

  /* CORREGIDO: Sin transform/backface permanentes */
}

.heroCard:nth-child(1) { animation-delay: 0.1s; }
.heroCard:nth-child(2) { animation-delay: 0.15s; }
.heroCard:nth-child(3) { animation-delay: 0.2s; }

/* Efecto shine para mejor tarifa */
.heroCard.best::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.15), transparent);
  animation: solar-shine 3s ease-in-out infinite;
  animation-delay: 1s;
  pointer-events: none;
  z-index: 1;
}

/* === TABLA DE RESULTADOS === */

/* CORREGIDO: Limitar animaciones en tablas para evitar lag */
tbody tr {
  animation: solar-fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

/* CORREGIDO: Solo animar primeras 15 filas para performance */
tbody tr:nth-child(n+16) {
  animation: none;
}

/* Delays solo primeras 10 filas */
tbody tr:nth-child(1) { animation-delay: 0.05s; }
tbody tr:nth-child(2) { animation-delay: 0.08s; }
tbody tr:nth-child(3) { animation-delay: 0.11s; }
tbody tr:nth-child(4) { animation-delay: 0.14s; }
tbody tr:nth-child(5) { animation-delay: 0.17s; }
tbody tr:nth-child(6) { animation-delay: 0.20s; }
tbody tr:nth-child(7) { animation-delay: 0.23s; }
tbody tr:nth-child(8) { animation-delay: 0.26s; }
tbody tr:nth-child(9) { animation-delay: 0.29s; }
tbody tr:nth-child(10) { animation-delay: 0.32s; }

/* Hover mejorado (solo desktop) - Sin desplazamiento para evitar "baile" */
@media (hover: hover) and (pointer: fine) {
  tbody tr:hover {
    background: rgba(139, 92, 246, 0.04);
    transition: background 0.2s ease;
  }
}

.light-mode tbody tr:hover {
  background: rgba(139, 92, 246, 0.06);
}

/* === SECCIÓN DE RESULTADOS === */

#seccionResultados {
  animation: solar-fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: 0.2s;
}

/* === FORMULARIO === */

.form-grid,
.input-group {
  animation: solar-fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: 0.05s;
}

/* === RESPONSIVE MOBILE === */

@media (max-width: 768px) {
  /* Simplificar animaciones */
  .card,
  .heroCard,
  tbody tr {
    animation-duration: 0.3s !important;
  }

  /* Sin efectos shine en móvil */
  .card::before,
  .heroCard.best::before {
    display: none !important;
  }

  /* Touch feedback */
  .card:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }

  /* Sin backdrop-filter en móvil */
  .topbar,
  .nav {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Sin animación en tablas en móvil */
  tbody tr {
    animation: none !important;
  }
}

/* === DARK MODE === */

@media (prefers-color-scheme: dark) {
  .heroCard.best::before {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  }
}

/* === LIGHT MODE === */

.light-mode .heroCard.best::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.3), transparent);
}

/* === BOTONES === */

.btn {
  /* CORREGIDO: will-change solo en hover */
  will-change: auto;

  /* CORREGIDO: Sin transform permanente */
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    will-change: transform;
    transform: translateY(-2px) scale(1.02);
  }

  .btn:not(:hover) {
    will-change: auto;
  }
}

.btn:active {
  transform: scale(0.96);
}

/* === TABS === */

.segmented__btn {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.segmented__btn:hover:not(.is-active) {
  transform: translateY(-1px);
}

/* === MODAL === */

.modal {
  animation: solar-fadeIn 0.2s ease-out;
}

.modal-content {
  animation: solar-fadeInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);

  /* CORREGIDO: position relative si tiene ::before */
  position: relative;
}

/* === ACCESIBILIDAD === */

@media (prefers-contrast: high) {
  .card,
  .heroCard {
    border-width: 2px !important;
  }
}

@media (prefers-reduced-transparency) {
  .card::before,
  .heroCard.best::before {
    opacity: 0 !important;
  }
}

/* === LOADING === */

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* =========================================================================
   SOLAR PRO RESKIN (premium, low-INP)
   - Better hierarchy, calmer surfaces, zero heavy animations
   - Safe in dark/light + desktop/mobile
   ========================================================================= */

body.solar-pro{
  --solar-surface: rgba(255,255,255,.045);
  --solar-surface-2: rgba(255,255,255,.075);
  --solar-border: rgba(255,255,255,.14);
  --solar-border-strong: rgba(255,255,255,.24);
  --solar-shadow: 0 18px 45px rgba(0,0,0,.35);
  background:
    radial-gradient(1200px 600px at 18% -10%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(900px 600px at 90% 6%, rgba(34,197,94,.18), transparent 55%),
    var(--bg);
}

html.light-mode body.solar-pro{
  --solar-surface: rgba(15,23,42,.03);
  --solar-surface-2: rgba(15,23,42,.06);
  --solar-border: rgba(15,23,42,.10);
  --solar-border-strong: rgba(15,23,42,.18);
  --solar-shadow: 0 16px 36px rgba(15,23,42,.10);
  background:
    radial-gradient(1200px 600px at 18% -10%, rgba(139,92,246,.10), transparent 60%),
    radial-gradient(900px 600px at 90% 6%, rgba(34,197,94,.10), transparent 55%),
    var(--bg);
}

body.solar-pro .card{
  background: linear-gradient(180deg, var(--solar-surface), rgba(0,0,0,0));
  border: 1px solid var(--solar-border);
  box-shadow: var(--solar-shadow);
}

html.light-mode body.solar-pro .card{
  background: linear-gradient(180deg, #fff, rgba(255,255,255,.85));
}

body.solar-pro .card::before{
  opacity: 0.25;
}

/* Upload + manual zone: calmer, more product-led */
body.solar-pro .bv-upload-compact{
  background: linear-gradient(145deg, var(--solar-surface-2), rgba(139,92,246,.04));
  border: 1px solid var(--solar-border);
  box-shadow: 0 10px 28px rgba(0,0,0,.18);
  transform: none;
}

body.solar-pro .bv-upload-compact::before{
  content: none;
}

body.solar-pro .bv-upload-compact:hover{
  border-color: var(--solar-border-strong);
  box-shadow: 0 14px 34px rgba(0,0,0,.22);
  transform: none;
}

body.solar-pro .bv-upload-btn{
  box-shadow: 0 6px 18px rgba(139,92,246,.28);
}

body.solar-pro .bv-upload-btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(139,92,246,.35);
}

body.solar-pro .bv-upload-hint{
  margin-left: 0;
}

body.solar-pro .bv-observatorio-cta{
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--solar-border);
  background: linear-gradient(145deg, rgba(139,92,246,.12), rgba(34,197,94,.06));
  display: grid;
  gap: 8px;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}

body.solar-pro .bv-observatorio-title{
  font-weight: 900;
  font-size: 13px;
  color: var(--text);
}

body.solar-pro .bv-observatorio-text{
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

body.solar-pro .bv-observatorio-btn{
  justify-content: center;
  font-size: 13px;
  padding: 8px 12px;
}

/* Results layout */
body.solar-pro .bv-results-grid{
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 24px;
}

@media (max-width: 900px){
  body.solar-pro .bv-results-grid{
    grid-template-columns: 1fr;
  }
}

/* Winner card: premium, no shimmer */
body.solar-pro .bv-winner-card-compact{
  background: linear-gradient(160deg, rgba(34,197,94,.16), rgba(139,92,246,.08));
  border: 1px solid rgba(34,197,94,.35);
  border-radius: 22px;
  box-shadow: 0 22px 50px rgba(0,0,0,.28);
  padding: 30px;
}

body.solar-pro .bv-winner-card-compact::before,
body.solar-pro .bv-winner-card-compact::after{
  content: none;
}

body.solar-pro .bv-winner-card-compact:hover{
  transform: translateY(-2px);
  box-shadow: 0 26px 60px rgba(0,0,0,.32);
}

body.solar-pro .bv-winner-badge{
  animation: none;
  background: rgba(34,197,94,.16);
  border: 1px solid rgba(34,197,94,.35);
  color: #d1fae5;
  box-shadow: none;
  letter-spacing: 1.2px;
}

html.light-mode body.solar-pro .bv-winner-badge{
  color: #14532d;
  background: rgba(34,197,94,.12);
}

body.solar-pro .bv-winner-name{
  text-shadow: none;
}

/* KPI cards: quieter, clearer */
body.solar-pro .bv-kpi-card{
  background: linear-gradient(145deg, var(--solar-surface), rgba(139,92,246,.03));
  border: 1px solid var(--solar-border);
  box-shadow: 0 10px 24px rgba(0,0,0,.16);
  animation: none;
}

body.solar-pro .bv-kpi-card::before{
  opacity: 0.35;
}

body.solar-pro .bv-kpi-card:hover{
  transform: translateY(-2px);
  border-color: var(--solar-border-strong);
  box-shadow: 0 14px 30px rgba(0,0,0,.2);
}

/* Alternatives: stable width + subtle left accent */
body.solar-pro .bv-alt-card-compact{
  background: linear-gradient(160deg, var(--solar-surface), rgba(139,92,246,.02));
  border: 1px solid var(--solar-border);
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  max-width: min(100%, 980px);
  margin: 0 auto;
  position: relative;
  animation: none;
}

body.solar-pro .bv-alt-card-compact::before{
  content: "";
  position: absolute;
  left: 12px;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(139,92,246,.8), rgba(34,197,94,.7));
  opacity: .7;
}

body.solar-pro .bv-alt-card-compact:hover{
  border-color: var(--solar-border-strong);
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0,0,0,.22);
}

body.solar-pro .bv-alt-rank{
  opacity: .55;
}

html.light-mode body.solar-pro .bv-alt-rank{
  opacity: .65;
}

/* Buttons: reduce gloss, keep clarity */
body.solar-pro .bv-alt-btn-info{
  box-shadow: 0 6px 16px rgba(139,92,246,.28);
}

body.solar-pro .bv-alt-btn-info:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(139,92,246,.38);
}

body.solar-pro .bv-alt-btn-toggle{
  background: linear-gradient(135deg, var(--solar-surface-2), rgba(139,92,246,.03));
}

/* Notes + info boxes */
body.solar-pro .bv-note,
body.solar-pro .bv-note-compact{
  border: 1px dashed var(--solar-border);
  background: linear-gradient(135deg, var(--solar-surface), rgba(139,92,246,.04));
}

@media (max-width: 600px){
  body.solar-pro .bv-upload-hint{
    margin-left: 0;
  }
  body.solar-pro .bv-alt-card-compact::before{
    left: 8px;
  }
}