:root {
      --bg-main: #121212;
      --bg-card-default: #1c1c1e;
      --border-dark: #2a2a2e;
      --text-main: #ffffff;
      --text-muted: #8e8e93;
      --red-accent: #ff2d55;
      --red-hover: #e0284b;
      
      /* COLORES DE FONDO POR DISCIPLINA (Versiones Oscuras / Sólidas) */
      --bg-cardio: #801227;
      --bg-muaythai: #8a4e00;
      --bg-boxing: #00428a;
      --bg-educativo: #7a1529;
      --bg-jiujitsu: #572573;
      --bg-slow: #195e2b;
      --bg-yoga: #3434ea;
      --bg-rutina: #17612b;
      --bg-kids: #856a00;
      --bg-juniors: #8a3710;
      --bg-defensa: #2e2d78;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      padding: 15px 10px;
      min-height: 100vh;
    }



    /* BARRA SUPERIOR */
  
    .top-controls {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
      flex-wrap: wrap;
      gap: 12px;
    }

    .lang-selector {
      display: flex;
      gap: 6px;
      background: #18181a;
      padding: 4px;
      border-radius: 8px;
      border: 1px solid var(--border-dark);
    }

    .lang-btn {
      background: transparent;
      border: none;
      color: var(--text-muted);
      padding: 4px 8px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s;
    }

    .lang-btn.active {
      background: var(--red-accent);
      color: #fff;
    }

    .view-switchers {
      display: flex;
      background: #18181a;
      padding: 4px;
      border-radius: 10px;
      border: 1px solid var(--border-dark);
      gap: 4px;
    }

    .view-btn {
      background: transparent;
      border: none;
      color: var(--text-muted);
      padding: 8px 18px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: all 0.2s;
    }

    .view-btn.active {
      background-color: var(--red-accent);
      color: #fff;
      box-shadow: 0 2px 8px rgba(255, 45, 85, 0.4);
    }

    /* PESTAÑAS DÍAS (VISTA DÍA) */
    .day-tabs {
      display: flex;
      gap: 10px;
      margin-bottom: 24px;
      overflow-x: auto;
    }

    .day-tab {
      flex: 1;
      min-width: 110px;
      background-color: var(--bg-card-default);
      border: 1px solid var(--border-dark);
      color: var(--text-muted);
      padding: 12px 10px;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 700;
      text-align: center;
      cursor: pointer;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      transition: all 0.2s;
    }

    .day-tab.active {
      border-color: var(--red-accent);
      color: var(--text-main);
      background-color: #222226;
      box-shadow: 0 0 12px rgba(255, 45, 85, 0.2);
    }

    .day-tab.is-today::after {
      content: '';
      width: 6px; height: 6px;
      background-color: #30d158;
      border-radius: 50%;
    }

    /* CONTENEDOR VISTA DÍA */
    .day-content-container {
      display: flex;
      flex-direction: column;
      gap: 12px;
      width: 100%;
    }

    .day-card {
      border-radius: 10px;
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: filter 0.15s;
    }

    .day-card:hover { filter: brightness(1.15); }

    .day-card-left {
      display: flex;
      align-items: center;
      gap: 20px;
      flex: 1;
    }

    .day-card-time {
      display: flex;
      flex-direction: column;
      gap: 2px;
      min-width: 110px;
    }

    .day-card-time .time-range { font-size: 15px; font-weight: 700; color: #fff; }
    .day-card-time .duration-tag { font-size: 12px; color: rgba(255, 255, 255, 0.7); }
    .day-card-title { font-size: 18px; font-weight: 700; color: #fff; }

    .card-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .action-icon {
      color: rgba(255, 255, 255, 0.8);
      font-size: 18px;
      cursor: pointer;
      padding: 8px;
      border-radius: 50%;
      background: rgba(0, 0, 0, 0.2);
      transition: all 0.2s;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .action-icon:hover { color: #fff; background: rgba(0, 0, 0, 0.4); }

    .btn-reserve-day {
      background-color: rgba(255, 255, 255, 0.2);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 10px 18px;
      border-radius: 8px;
      font-weight: 700;
      font-size: 14px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: all 0.2s;
      backdrop-filter: blur(4px);
    }

    .btn-reserve-day:hover {
      background-color: #fff;
      color: #121212;
    }

    /* VISTA SEMANAL CON COLOR COMPLETO EN LA CARD */
    .week-table-container {
      width: 100%;
      overflow-x: auto;
      border: 1px solid var(--border-dark);
      border-radius: 12px;
      background-color: var(--bg-card-default);
    }

    .week-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 850px;
      table-layout: fixed;
    }

    .week-table th {
      background: #18181a;
      padding: 14px 10px;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-dark);
      border-right: 1px solid var(--border-dark);
      text-align: center;
    }

    .week-table td {
      border-bottom: 1px solid var(--border-dark);
      border-right: 1px solid var(--border-dark);
      padding: 8px;
      vertical-align: top;
      height: 110px;
    }

    .week-table td.time-col {
      width: 90px;
      background: #18181a;
      font-size: 12px;
      font-weight: 700;
      color: var(--text-muted);
      text-align: center;
      vertical-align: middle;
    }

    /* Tarjeta interna semanal con fondo completo */
    .week-card {
      border-radius: 10px;
      padding: 10px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      transition: filter 0.15s ease, transform 0.15s ease;
      box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    }

    .week-card:hover {
      filter: brightness(1.15);
      transform: translateY(-1px);
    }

    .week-card-header {
      display: flex;
      flex-direction: column;
      gap: 3px;
    }

    .week-card-title { 
      font-size: 13px; 
      font-weight: 800; 
      color: #fff; 
      line-height: 1.25;
      text-shadow: 0 1px 2px rgba(0,0,0,0.4);
    }

    .week-card-time { 
      font-size: 11px; 
      font-weight: 600;
      color: rgba(255, 255, 255, 0.75); 
    }

    /* Acciones inferiores de la card semanal */
    .week-card-actions {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 8px;
      padding-top: 6px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
    }

    .week-card-icons {
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .week-icon-btn {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: rgba(0, 0, 0, 0.25);
      color: rgba(255, 255, 255, 0.85);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.2s;
    }

    .week-icon-btn:hover { background: rgba(0, 0, 0, 0.5); color: #fff; }

    .btn-reserve-week {
      background-color: rgba(255, 255, 255, 0.2);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 5px 10px;
      border-radius: 6px;
      font-weight: 700;
      font-size: 11px;
      cursor: pointer;
      transition: all 0.2s;
    }

    .btn-reserve-week:hover { 
      background-color: #fff;
      color: #121212;
    }

    /* ASIGNACIÓN DE COLOR DE FONDO POR DISCIPLINA */
    .card-cardio { background-color: var(--bg-cardio); }
    .card-muaythai { background-color: var(--bg-muaythai); }
    .card-boxing { background-color: var(--bg-boxing); }
    .card-educativo { background-color: var(--bg-educativo); }
    .card-jiujitsu { background-color: var(--bg-jiujitsu); }
    .card-slow { background-color: var(--bg-slow); }
    .card-yoga { background-color: var(--bg-yoga); }
    .card-rutina { background-color: var(--bg-rutina); }
    .card-kids { background-color: var(--bg-kids); }
    .card-juniors { background-color: var(--bg-juniors); }
    .card-defensa { background-color: var(--bg-defensa); }

    /* MODALES */
    .modal-overlay {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(0,0,0,0.8);
      backdrop-filter: blur(5px);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .modal-overlay.active { display: flex; }

    .modal-box {
      background: var(--bg-card-default);
      border: 1px solid var(--border-dark);
      border-radius: 16px;
      width: 100%;
      max-width: 480px;
      padding: 24px;
      position: relative;
      box-shadow: 0 10px 30px rgba(0,0,0,0.9);
    }

    .modal-close {
      position: absolute;
      top: 16px; right: 16px;
      background: none; border: none;
      color: var(--text-muted); font-size: 22px; cursor: pointer;
    }

    .modal-badge {
      display: inline-block;
      background: rgba(255, 45, 85, 0.15);
      color: var(--red-accent);
      font-size: 12px; font-weight: 700;
      padding: 4px 8px; border-radius: 6px; margin-bottom: 8px;
    }

    .modal-badge.info-badge {
      background: rgba(0, 122, 255, 0.15);
      color: #007aff;
    }

    .modal-title { font-size: 22px; font-weight: 800; }
    .modal-datetime { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }

    .modal-description-box {
      font-size: 14px;
      color: #ccc;
      margin-bottom: 18px;
      line-height: 1.5;
    }

    .price-discount-info {
      background: rgba(48, 209, 88, 0.1);
      border-left: 3px solid #30d158;
      padding: 8px 12px;
      font-size: 12px;
      color: #30d158;
      margin-bottom: 14px;
      border-radius: 4px;
    }

    .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
    .form-group label { font-size: 12px; font-weight: 600; color: var(--text-muted); }
    .form-group input {
      background: var(--bg-main);
      border: 1px solid var(--border-dark);
      border-radius: 8px;
      padding: 10px 12px;
      color: #fff; font-size: 14px; outline: none;
    }
    .form-group input:focus { border-color: var(--red-accent); }

    .btn-whatsapp {
      width: 100%;
      background-color: #25d366;
      color: #fff; border: none;
      padding: 12px; border-radius: 8px;
      font-weight: 700; font-size: 15px; cursor: pointer;
      display: flex; align-items: center; justify-content: center; gap: 8px;
      margin-top: 14px;
    }
    .btn-whatsapp:hover { background-color: #20bd5a; }

    @media (max-width: 768px) {
      .day-card { flex-direction: column; align-items: flex-start; }
      .day-card-left { flex-direction: column; align-items: flex-start; gap: 8px; }
      .card-actions { width: 100%; justify-content: space-between; margin-top: 8px; }
      .btn-reserve-day { width: 100%; justify-content: center; }
    }