/* ========================================
       VARIABLES CSS
       ======================================== */
    :root {
      --accent: #19C1FF;        /* Color principal (azul cyan) */
      --taka-color: #FF69B4;    /* Color para botón TAKA (rosa) */
      --bg: #0a0a0a;            /* Fondo oscuro */
      --panel: #111;            /* Fondo de paneles */
      --text: #fff;             /* Color de texto */
      --border: #222;           /* Color de bordes */
    }

    /* ========================================
       RESET Y BASE
       ======================================== */
    * { 
      box-sizing: border-box; 
      margin: 0; 
      padding: 0; 
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Poppins', Arial, sans-serif;
      padding: 20px;
      line-height: 1.6;
    }

    /* ========================================
       LOGO Y TÍTULO
       ======================================== */
    .logo {
      display: block;
      margin: 10px auto;
      width: 260px;
      max-width: 60vw;
      filter: drop-shadow(0 0 10px var(--accent));
    }

    h1 {
      color: var(--accent);
      text-align: center;
      text-shadow: 0 0 10px var(--accent);
      margin-bottom: 10px;
      font-weight: 700;
      font-size: 1.8rem;
    }

    /* ========================================
       BOTONES DE ACCIÓN
       ======================================== */
    .actions {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .btn {
      background: transparent;
      color: var(--accent);
      border: 1px solid var(--accent);
      border-radius: 8px;
      padding: 8px 14px;
      cursor: pointer;
      font-weight: 600;
      transition: all .2s;
      font-size: .95rem;
    }

    .btn:hover {
      background: rgba(25, 193, 255, .08);
      box-shadow: 0 0 10px rgba(25, 193, 255, .4);
      transform: translateY(-1px);
    }

    /* Botón TAKA con estilo especial */
    .btn-taka {
      color: var(--taka-color);
      border-color: var(--taka-color);
    }

    .btn-taka:hover {
      background: rgba(255, 105, 180, .08);
      box-shadow: 0 0 10px rgba(255, 105, 180, .4);
    }

    /* Botón TRAIN con estilo especial */
    .btn-train {
      color: #00FF00;
      border-color: #00FF00;
    }

    .btn-train:hover {
      background: rgba(0, 255, 0, .08);
      box-shadow: 0 0 10px rgba(0, 255, 0, .4);
    }

    /* ========================================
       GRID DE SECCIONES
       ======================================== */
    .sections {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      align-items: flex-start;
    }

    /* Contenedor para Rendimiento y Kit de Limpieza */
    .rendimiento-container {
      display: flex;
      flex-direction: column;
      gap: 22px;
      width: 360px;
      max-width: 100%;
    }

    .wide-column {
      display: flex;
      flex-direction: column;
      gap: 22px;
      width: 500px;
      max-width: 100%;
    }

    /* ========================================
       TARJETAS DE CATEGORÍAS
       ======================================== */
    .card {
      background: var(--panel);
      border: 2px solid var(--accent);
      border-radius: 12px;
      padding: 14px;
      min-width: 320px;
      max-width: 100%;
      box-shadow: 0 0 15px rgba(25, 193, 255, .25);
      transition: box-shadow .2s, transform .2s;
    }

    .card:hover {
      box-shadow: 0 0 25px rgba(25, 193, 255, .5);
      transform: translateY(-2px);
    }

    /* Tarjeta ancha para cosméticos */
    .card.wide { 
      min-width: 500px; 
    }

    .card h2 {
      margin: 0 0 10px;
      color: var(--accent);
      border-bottom: 1px solid var(--accent);
      padding-bottom: 6px;
      font-size: 1.05rem;
      text-align: center;
      text-transform: uppercase;
      letter-spacing: .5px;
    }

    .badge-new {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-left: 10px;
      padding: 4px 12px;
      border: 2px solid #22c55e;
      border-radius: 999px;
      background: rgba(34, 197, 94, .2);
      color: #22c55e;
      font-size: .86rem;
      font-weight: 800;
      letter-spacing: .08em;
      vertical-align: middle;
      text-shadow: 0 0 8px rgba(34, 197, 94, .65);
      box-shadow: 0 0 18px rgba(34, 197, 94, .45);
      animation: badgePulse 1.4s ease-in-out infinite;
    }

    @keyframes badgePulse {
      0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 18px rgba(34, 197, 94, .45);
      }
      50% {
        transform: scale(1.08);
        box-shadow: 0 0 26px rgba(34, 197, 94, .75);
      }
    }

    /* ========================================
       ITEMS DE PIEZAS
       ======================================== */
    .item {
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 4px;
      padding: 6px 0;
      border-bottom: 1px solid var(--border);
      font-size: .95rem;
    }

    .item:last-child { 
      border-bottom: 0; 
    }

    /* ========================================
       LABELS Y CHECKBOXES
       ======================================== */
    label {
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      min-width: 0;
      user-select: none;
    }

    label span {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    input[type="checkbox"] {
      accent-color: var(--accent);
      transform: scale(1.2);
      cursor: pointer;
      flex-shrink: 0;
    }

    /* ========================================
       INPUTS NUMÉRICOS
       ======================================== */
    input[type="number"] {
      width: 50px;
      flex-shrink: 0;
      background: #0e0e0e;
      color: #fff;
      border: 1px solid var(--accent);
      border-radius: 6px;
      padding: 2px 4px;
      font-weight: 600;
      font-size: .9rem;
      text-align: center;
      display: none; /* Oculto por defecto */
    }

    /* Mostrar cuando está visible */
    input[type="number"].visible { 
      display: block; 
    }

    input[type="number"]:focus {
      outline: none;
      box-shadow: 0 0 6px var(--accent);
    }

    /* ========================================
       BOTÓN FULL TUNNING
       ======================================== */
    .full-tunning-btn {
      display: block;
      width: 100%;
      background: transparent;
      border: 1px solid var(--accent);
      color: var(--accent);
      border-radius: 8px;
      padding: 8px;
      margin-top: 10px;
      cursor: pointer;
      font-weight: 600;
      transition: all .2s;
      text-align: center;
      font-size: .95rem;
    }

    .full-tunning-btn:hover {
      background: rgba(25, 193, 255, .08);
      box-shadow: 0 0 10px rgba(25, 193, 255, .4);
    }

    /* ========================================
       GRID DE COSMÉTICOS (2 COLUMNAS)
       ======================================== */
    .cosmeticos-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 0 8px;
    }

    .cosmeticos-grid .item {
      display: grid;
      grid-template-columns: 1fr auto;
      border-bottom: 1px solid var(--border);
      padding: 6px 2px;
      min-width: 0;
      gap: 4px;
    }

    /* Últimos 2 items sin borde */
    .cosmeticos-grid .item:nth-last-child(-n+2) { 
      border-bottom: 0; 
    }

    .cosmeticos-grid .item label { 
      min-width: 0; 
    }

    .cosmeticos-grid .item label span { 
      font-size: .88rem; 
    }

    /* ========================================
       RESUMEN (MATERIALES Y VENTAS)
       ======================================== */
    .summary {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      align-items: flex-start;
      margin-top: 22px;
    }

    .totals, .sales {
      background: var(--panel);
      border: 2px solid var(--accent);
      border-radius: 12px;
      padding: 14px;
      box-shadow: 0 0 15px rgba(25, 193, 255, .35);
      width: 520px;
      max-width: 100%;
    }

    .totals h3, .sales h3 {
      margin: 0 0 10px;
      color: var(--accent);
      text-align: center;
      font-size: 1.1rem;
    }

    /* ========================================
       GRID DE MATERIALES
       ======================================== */
    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 8px 18px;
    }

    .mat {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      padding: 6px 8px;
      background: #0e0e0e;
      border-radius: 8px;
      border: 1px solid var(--border);
      font-variant-numeric: tabular-nums;
    }

    .mat-info {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1;
      min-width: 0;
    }

    /* Icono del material */
    .mat-icon {
      width: 40px;
      height: 40px;
      object-fit: contain;
      flex-shrink: 0;
      filter: drop-shadow(0 0 3px rgba(25, 193, 255, .3));
    }

    .mat-info span {
      font-size: .9rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .mat strong {
      color: var(--accent);
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    /* ========================================
       FILAS DE VENTAS
       ======================================== */
    .sales .row {
      display: flex;
      justify-content: space-between;
      background: #0e0e0e;
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 8px 10px;
      margin-bottom: 8px;
    }

    /* Fila del total general */
    .sales .total {
      font-size: 1.15rem;
      border-color: var(--accent);
      font-weight: 600;
    }

    .sales .total strong { 
      color: var(--accent); 
    }

    /* ========================================
       NOTAS
       ======================================== */
    .note {
      display: block;
      text-align: center;
      color: #b8e7ff;
      opacity: .8;
      margin-top: 8px;
      font-size: .85rem;
    }

    /* ========================================
       POPUPS
       ======================================== */
    .popup-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, .8);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
      backdrop-filter: blur(4px);
    }

    .popup {
      background: var(--panel);
      border: 2px solid var(--accent);
      border-radius: 12px;
      padding: 24px;
      max-width: 400px;
      width: 90%;
      box-shadow: 0 0 30px rgba(25, 193, 255, .5);
      animation: popupSlide .3s ease;
    }

    /* Popup más ancho para TAKA */
    .popup.prices-popup {
      max-width: 900px;
      width: 95%;
    }

    /* Animación de entrada */
    @keyframes popupSlide {
      from { opacity: 0; transform: translateY(-20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .popup h2 {
      color: var(--accent);
      text-align: center;
      margin: 0 0 10px;
      font-size: 1.5rem;
      text-shadow: 0 0 10px var(--accent);
    }

    .popup p {
      text-align: center;
      margin-bottom: 20px;
      opacity: .9;
    }

    /* Opciones de descuento */
    .discount-options {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 20px;
    }

    .discount-btn {
      background: transparent;
      color: var(--accent);
      border: 2px solid var(--accent);
      border-radius: 8px;
      padding: 15px 20px;
      cursor: pointer;
      transition: all .2s;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 15px;
      font-weight: 600;
      font-size: .95rem;
      text-transform: uppercase;
    }

    .discount-btn:hover {
      background: rgba(25, 193, 255, .15);
      box-shadow: 0 0 15px rgba(25, 193, 255, .5);
      transform: translateX(5px);
    }

    /* Acciones del popup */
    .popup-actions {
      display: flex;
      gap: 10px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .popup-actions-spaced {
      margin-top: 20px;
    }

    .popup-media {
      width: 100%;
      border-radius: 8px;
    }

    .train-title {
      color: #00FF00;
      text-shadow: 0 0 10px rgba(0, 255, 0, .8);
    }

    .discount-row {
      color: #4ade80;
    }

    .btn-close, .btn-remove {
      background: transparent;
      color: var(--accent);
      border: 1px solid var(--accent);
      border-radius: 8px;
      padding: 8px 16px;
      cursor: pointer;
      font-weight: 600;
      transition: all .2s;
    }

    .btn-close:hover, .btn-remove:hover {
      background: rgba(25, 193, 255, .08);
      box-shadow: 0 0 10px rgba(25, 193, 255, .4);
    }

    /* Botón remover descuento (rojo) */
    .btn-remove { 
      color: #f44; 
      border-color: #f44; 
    }

    .btn-remove:hover {
      background: rgba(255, 68, 68, .08);
      box-shadow: 0 0 10px rgba(255, 68, 68, .4);
    }

    /* ========================================
       RESPONSIVE (MÓVIL)
       ======================================== */
    @media (max-width: 768px) {
      h1 { font-size: 1.4rem; }
      .card.wide { min-width: 320px; }
      .cosmeticos-grid { grid-template-columns: 1fr; }
      .grid { grid-template-columns: 1fr; }
    }