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

    :root {
      --bg: #ffffff;
      --text-main: #0f0f0f;
      --text-muted: #606060;
      --bar-bg: #e5e5e5;
      --bar-fill: #ff0000;
      --icon-color: #0f0f0f;
      --panel-bg: #ffffff;
      --panel-border: #e5e5e5;
      --panel-shadow: rgba(0, 0, 0, 0.16);
      --input-bg: #f8f8f8;
      --input-border: #d0d0d0;
      --btn-bg: #0f0f0f;
      --btn-text: #ffffff;
      --curve-track: #f7f7f7;
      --tab-bg: #f0f0f0;
    }

    body.dark-theme {
      --bg: #0f0f0f;
      --text-main: #f1f1f1;
      --text-muted: #aaaaaa;
      --bar-bg: #303030;
      --bar-fill: #ff0000;
      --icon-color: #f1f1f1;
      --panel-bg: #212121;
      --panel-border: #383838;
      --panel-shadow: rgba(0, 0, 0, 0.55);
      --input-bg: #141414;
      --input-border: #444444;
      --btn-bg: #ffffff;
      --btn-text: #0f0f0f;
      --curve-track: #181818;
      --tab-bg: #2a2a2a;
    }

    body {
      background-color: var(--bg);
      color: var(--text-main);
      font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      user-select: none;
      overflow: hidden;
      transition: background-color 0.2s ease, color 0.2s ease;
      position: relative;
    }

    /* Ocultar flechitas de número */
    input[type="number"]::-webkit-outer-spin-button,
    input[type="number"]::-webkit-inner-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }
    input[type="number"] {
      -moz-appearance: textfield;
      appearance: textfield;
    }

    /* Botón 3 Puntos Arriba a la Derecha */
    .top-menu-btn {
      position: fixed;
      top: 18px;
      right: 20px;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: transparent;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background-color 0.15s, color 0.15s, opacity 0.2s;
      z-index: 100;
      opacity: 0.7;
    }

    .top-menu-btn:hover {
      background-color: rgba(128, 128, 128, 0.15);
      opacity: 1;
      color: var(--text-main);
    }

    .top-menu-btn svg {
      width: 20px;
      height: 20px;
      fill: currentColor;
    }

    /* Panel de Configuración Arriba a la Derecha */
    .config-modal {
      position: fixed;
      top: 62px;
      right: 20px;
      background: var(--panel-bg);
      border: 1px solid var(--panel-border);
      border-radius: 16px;
      box-shadow: 0 10px 30px var(--panel-shadow);
      padding: 16px;
      width: 310px;
      max-height: calc(100vh - 80px);
      overflow-y: auto;
      z-index: 200;
      display: none;
      flex-direction: column;
      gap: 12px;
      animation: modalFadeIn 0.12s ease-out;
    }

    .config-modal.open {
      display: flex;
    }

    @keyframes modalFadeIn {
      from { opacity: 0; transform: translateY(-6px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 14px;
      font-weight: 700;
      padding-bottom: 6px;
      border-bottom: 1px solid var(--panel-border);
      color: var(--text-main);
    }

    .config-row {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .config-label-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .config-label-with-icon {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 11.5px;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }

    .config-label-with-icon svg {
      width: 14px;
      height: 14px;
      fill: currentColor;
    }

    /* Puntito Rojo Limpio y Plano (Sin brillo) */
    .modified-dot {
      width: 6.5px;
      height: 6.5px;
      border-radius: 50%;
      background: #ff0000;
      display: none;
      flex-shrink: 0;
    }

    .modified-dot.visible {
      display: inline-block;
    }

    .config-inputs-pair {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }

    .config-input {
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      color: var(--text-main);
      padding: 7px 10px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
      outline: none;
      width: 100%;
      font-family: inherit;
    }

    .config-input:focus {
      border-color: #ff0000;
    }

    /* Select de Formato */
    select.config-input {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23777777'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 8px center;
      background-size: 16px;
      padding-right: 28px;
      cursor: pointer;
    }

    /* ========================================================
       SECCIÓN DE LÍNEA DE RITMO / VELOCIDAD (HORIZONTAL)
       ======================================================== */
    .curve-section {
      background: var(--curve-track);
      border: 1px solid var(--input-border);
      border-radius: 12px;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .curve-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 11px;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
    }

    .curve-reset-btn {
      background: transparent;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      transition: all 0.15s ease;
    }

    .curve-reset-btn:hover {
      color: #ff0000;
      background: rgba(255, 0, 0, 0.08);
      transform: rotate(-45deg);
    }

    .curve-reset-btn svg {
      width: 15px;
      height: 15px;
      fill: currentColor;
    }

    /* Selector de Métricas */
    .metric-tabs-bar {
      display: flex;
      gap: 6px;
      background: var(--tab-bg);
      padding: 4px;
      border-radius: 10px;
      border: 1px solid var(--input-border);
    }

    .metric-tab {
      background: transparent;
      border: none;
      color: var(--text-muted);
      height: 32px;
      border-radius: 7px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 10px;
      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      flex: 1;
    }

    .metric-tab svg {
      width: 16px;
      height: 16px;
      fill: currentColor;
      flex-shrink: 0;
    }

    .metric-tab .metric-tab-text {
      font-size: 11.5px;
      font-weight: 700;
      max-width: 0;
      opacity: 0;
      overflow: hidden;
      white-space: nowrap;
      transition: max-width 0.2s ease, opacity 0.2s ease, margin-left 0.2s ease;
      margin-left: 0;
    }

    .metric-tab.active {
      background: #ff0000;
      color: #ffffff;
      flex: 1.6;
    }

    .metric-tab.active .metric-tab-text {
      max-width: 70px;
      opacity: 1;
      margin-left: 6px;
    }

    /* Canvas / SVG Línea de Velocidad Horizontal */
    .curve-canvas-wrapper {
      width: 100%;
      height: 80px;
      background: var(--panel-bg);
      border: 1px solid var(--input-border);
      border-radius: 8px;
      position: relative;
      overflow: hidden;
      cursor: crosshair;
      touch-action: none;
    }

    .curve-svg {
      width: 100%;
      height: 100%;
      display: block;
    }

    .speed-reference-line {
      stroke: currentColor;
      opacity: 0.15;
      stroke-dasharray: 3,3;
    }

    .curve-handle {
      cursor: grab;
      transition: r 0.1s;
    }
    .curve-handle:hover {
      r: 6.5;
    }
    .curve-handle:active, .curve-handle.dragging {
      cursor: grabbing;
      r: 8;
    }

    /* Selector de Tema */
    .theme-toggle-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      padding-top: 2px;
    }

    .theme-btn-option {
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      color: var(--text-main);
      padding: 6px 10px;
      border-radius: 8px;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: border-color 0.12s, color 0.12s;
    }

    .theme-btn-option svg {
      width: 15px;
      height: 15px;
      flex-shrink: 0;
    }

    .theme-btn-option.active {
      border-color: #ff0000;
      color: #ff0000;
    }

    .action-btn-primary {
      background: #ff0000;
      color: #ffffff;
      border: none;
      padding: 9px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: background-color 0.15s, transform 0.1s;
    }

    .action-btn-primary:hover {
      background: #cc0000;
      transform: scale(1.02);
    }

    .action-btn-primary svg {
      width: 15px;
      height: 15px;
      fill: #ffffff;
    }

    /* Enlace de Salir al Menú */
    .exit-link {
      color: var(--text-muted);
      font-size: 12px;
      text-decoration: none;
      text-align: center;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 4px;
      transition: color 0.12s;
    }

    .exit-link svg {
      width: 16px;
      height: 16px;
      stroke: currentColor;
    }

    .exit-link:hover {
      color: var(--text-main);
    }

    /* ========================================================
       CONTENEDOR DE ESTADÍSTICAS LIMPIO PARA GRABACIÓN
       ======================================================== */
    .stats-container {
      display: flex;
      flex-direction: column;
      width: 100%;
      max-width: 640px;
      padding: 20px;
      cursor: pointer;
    }

    /* Views */
    .views-title-row {
      font-size: 54px;
      font-weight: 700;
      letter-spacing: -0.8px;
      display: flex;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 12px;
      line-height: 1;
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }

    .views-number {
      font-weight: 700;
      color: var(--text-main);
    }

    .views-label {
      font-weight: 700;
      color: var(--text-main);
      opacity: 0.95;
    }

    /* Barra de Progreso Roja */
    .progress-bar-track {
      width: 100%;
      height: 8px;
      background-color: var(--bar-bg);
      border-radius: 4px;
      overflow: hidden;
      position: relative;
      margin-bottom: 16px;
    }

    .progress-bar-fill {
      position: absolute;
      top: 0;
      left: 0;
      bottom: 0;
      width: 0%;
      background-color: var(--bar-fill);
      border-radius: 4px;
      transition: width 0.03s linear;
    }

    /* Fila de Likes y Dislikes */
    .likes-dislikes-row {
      display: flex;
      align-items: center;
      gap: 40px;
      padding-left: 2px;
    }

    .stat-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }

    .stat-icon {
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .stat-icon svg {
      width: 28px;
      height: 28px;
      fill: var(--icon-color);
    }