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

    :root {
      --app-bg: #f8fafc;
      --card-bg: #ffffff;
      --border-color: #e2e8f0;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --primary: #ff0000;
      --input-bg: #ffffff;
      --input-border: #cbd5e1;
    }

    body {
      background-color: var(--app-bg);
      color: var(--text-main);
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      user-select: none;
    }

    /* Visibilidad Responsive */
    .mobile-only {
      display: none !important;
    }

    .desktop-only {
      display: flex !important;
    }

    /* Barra Superior en Móvil (<= 1040px) */
    .top-nav-wrap {
      max-width: 1380px;
      width: 100%;
      margin: 0 auto;
      padding: 16px 24px 0 24px;
      display: flex;
      justify-content: flex-end;
      align-items: center;
    }

    /* Botón Salir al Menú */
    .exit-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      color: #334155;
      text-decoration: none;
      padding: 9px 16px;
      border-radius: 12px;
      border: 1px solid #e2e8f0;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
      font-size: 13px;
      font-weight: 700;
      transition: all 0.15s ease;
    }

    .exit-btn:hover {
      background: #f1f5f9;
      color: #0f172a;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.09);
    }

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

    /* Main Layout */
    .main-layout {
      display: grid;
      grid-template-columns: 430px 1fr;
      gap: 28px;
      max-width: 1380px;
      width: 100%;
      margin: 0 auto;
      padding: 24px 24px 60px 24px;
      flex: 1;
    }

    @media (max-width: 1040px) {
      .mobile-only {
        display: flex !important;
      }

      .desktop-only {
        display: none !important;
      }

      .main-layout {
        grid-template-columns: 1fr;
        padding-top: 14px;
      }
    }

    @media (max-width: 600px) {
      .top-nav-wrap {
        padding: 14px 16px 0 16px;
      }
      .main-layout {
        padding: 12px 16px 40px 16px;
      }
    }

    /* Controls Panel */
    .control-panel {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .panel-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 16px 18px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .panel-card-title {
      font-size: 13.5px;
      font-weight: 800;
      color: #1e293b;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .step-badge {
      background: #eff6ff;
      color: #2563eb;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 800;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 5px;
    }

    .form-label {
      font-size: 12px;
      font-weight: 700;
      color: #475569;
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }

    /* Sleek Input Prefix Box (@ Fijo No Borrable) */
    .input-tag-group {
      display: flex;
      align-items: center;
      background: #ffffff;
      border: 1.5px solid var(--input-border);
      border-radius: 10px;
      padding: 3px 4px 3px 12px;
      transition: all 0.15s ease;
    }

    .input-tag-group:focus-within {
      border-color: #0f172a;
      box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.08);
    }

    .input-at-tag {
      color: #64748b;
      font-size: 14px;
      font-weight: 700;
      user-select: none;
      pointer-events: none;
      margin-right: 3px;
    }

    .input-tag-field {
      border: none !important;
      outline: none !important;
      background: transparent !important;
      font-family: inherit;
      font-size: 13.5px;
      font-weight: 600;
      color: #0f172a;
      flex: 1;
      padding: 6px 0;
      min-width: 0;
    }

    .input-tag-field::placeholder {
      color: #94a3b8;
      font-weight: 400;
    }

    .btn-auto-fetch {
      background: #0f172a;
      color: #ffffff;
      border: none;
      border-radius: 7px;
      padding: 6px 12px;
      font-size: 11.5px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      cursor: pointer;
      white-space: nowrap;
      transition: background 0.15s, transform 0.1s;
    }

    .btn-auto-fetch:hover {
      background: #334155;
    }

    .btn-auto-fetch:active {
      transform: scale(0.97);
    }

    .btn-auto-fetch.loading {
      opacity: 0.7;
      pointer-events: none;
    }

    .form-input, .form-textarea {
      width: 100%;
      border: 1.5px solid var(--input-border);
      border-radius: 10px;
      padding: 9px 12px;
      font-family: inherit;
      font-size: 13px;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: all 0.15s ease;
    }

    .form-input:focus, .form-textarea:focus {
      border-color: #0f172a;
      box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.08);
    }

    .form-textarea {
      resize: vertical;
      min-height: 72px;
      line-height: 1.4;
    }

    .form-row-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    /* Custom Selects */
    .custom-select {
      width: 100%;
      border: 1.5px solid var(--input-border);
      border-radius: 10px;
      padding: 8px 30px 8px 12px;
      font-family: inherit;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      background: #ffffff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 10px center;
      appearance: none;
      -webkit-appearance: none;
      outline: none;
      cursor: pointer;
      transition: border-color 0.15s;
    }

    .custom-select:focus {
      border-color: #0f172a;
      box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.08);
    }

    /* Switches */
    .switch-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 4px 0;
    }

    .switch-title {
      font-size: 13px;
      font-weight: 600;
      color: #334155;
    }

    .toggle-switch {
      position: relative;
      display: inline-block;
      width: 38px;
      height: 22px;
      flex-shrink: 0;
    }

    .toggle-switch input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .slider-toggle {
      position: absolute;
      cursor: pointer;
      top: 0; left: 0; right: 0; bottom: 0;
      background-color: #cbd5e1;
      transition: 0.2s;
      border-radius: 22px;
    }

    .slider-toggle:before {
      position: absolute;
      content: "";
      height: 16px;
      width: 16px;
      left: 3px;
      bottom: 3px;
      background-color: white;
      transition: 0.2s;
      border-radius: 50%;
      box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    }

    .toggle-switch input:checked + .slider-toggle {
      background-color: #0f172a;
    }

    .toggle-switch input:checked + .slider-toggle:before {
      transform: translateX(16px);
    }

    /* Avatar Upload Row */
    .avatar-upload-row {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: 10px;
      padding: 10px 12px;
    }

    .avatar-preview-box {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #009688;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 700;
      font-size: 18px;
      overflow: hidden;
      flex-shrink: 0;
      box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }

    .avatar-preview-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .upload-btn-label {
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      padding: 6px 12px;
      font-size: 12px;
      font-weight: 700;
      color: #334155;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.15s;
    }

    .upload-btn-label:hover {
      background: #f1f5f9;
      border-color: #94a3b8;
    }

    .btn-reset-avatar {
      background: transparent;
      border: none;
      color: #ef4444;
      font-size: 11px;
      font-weight: 700;
      cursor: pointer;
      text-align: left;
      padding: 2px 0;
    }

    .btn-reset-avatar:hover {
      text-decoration: underline;
    }

    /* Radio Group */
    .pill-radio-group {
      display: flex;
      background: #f1f5f9;
      padding: 3px;
      border-radius: 10px;
      gap: 3px;
    }

    .pill-radio-group input {
      display: none;
    }

    .pill-radio-label {
      flex: 1;
      text-align: center;
      padding: 7px 10px;
      font-size: 12px;
      font-weight: 700;
      color: #64748b;
      cursor: pointer;
      border-radius: 8px;
      transition: all 0.15s ease;
    }

    .pill-radio-group input:checked + .pill-radio-label {
      background: #ffffff;
      color: #0f172a;
      box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    }

    /* Right Preview Column */
    .preview-column {
      display: flex;
      flex-direction: column;
      gap: 14px;
      position: sticky;
      top: 24px;
      align-self: flex-start;
    }

    .preview-top-bar {
      display: flex;
      justify-content: flex-end;
      width: 100%;
    }

    .preview-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 20px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .preview-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 12px;
    }

    .preview-title {
      font-size: 13px;
      font-weight: 800;
      color: #334155;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .canvas-stage-wrapper {
      background: #f1f5f9;
      background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
      background-size: 14px 14px;
      padding: 28px 20px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow-x: auto;
      min-height: 180px;
    }

    /* ========================================================
       AUTÉNTICO COMENTARIO DE YOUTUBE (PIXEL-PERFECT)
       ======================================================== */
    .yt-comment-container {
      font-family: 'Roboto', 'Arial', sans-serif;
      border-radius: 14px;
      padding: 16px 20px;
      width: 100%;
      max-width: 560px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      line-height: 1.4;
      box-sizing: border-box;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
      transition: background-color 0.12s, max-width 0.22s cubic-bezier(0.16, 1, 0.3, 1);
      margin: 0 auto;
    }

    .yt-comment-container.width-normal {
      max-width: 560px;
    }

    .yt-comment-container.width-short {
      max-width: 360px;
    }

    .yt-comment-container.yt-light {
      background-color: #ffffff;
      color: #0f0f0f;
    }

    .yt-comment-container.yt-dark {
      background-color: #0f0f0f;
      color: #f1f1f1;
    }

    /* Avatar */
    .yt-avatar-box {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      overflow: hidden;
      flex-shrink: 0;
      background: #009688;
      display: flex;
      align-items: center;
      justify-content: center;
      user-select: none;
      border: none;
      outline: none;
    }
    .yt-avatar-box.has-image {
      background: transparent !important;
    }

    .yt-avatar-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .yt-avatar-letter {
      font-size: 18px;
      font-weight: 500;
      color: #ffffff;
      text-transform: uppercase;
    }

    .yt-body-wrap {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 3px;
    }

    /* Pinned Row */
    .yt-pinned-row {
      display: flex;
      align-items: center;
      gap: 4px;
      font-size: 12px;
      font-weight: 500;
      margin-bottom: 2px;
    }

    .yt-light .yt-pinned-row {
      color: #606060;
    }

    .yt-dark .yt-pinned-row {
      color: #aaaaaa;
    }

    .yt-pinned-row svg {
      width: 17px;
      height: 17px;
      fill: currentColor;
      flex-shrink: 0;
    }

    /* Header Row */
    .yt-header-row {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
      line-height: 18px;
    }

    .yt-author-name {
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .yt-light .yt-author-name {
      color: #0f0f0f;
    }

    .yt-dark .yt-author-name {
      color: #f1f1f1;
    }

    /* Autor del Canal */
    .yt-author-name.is-channel-owner {
      background: #606060;
      color: #ffffff !important;
      border-radius: 12px;
      padding: 0 8px;
      line-height: 18px;
      font-size: 12px;
    }

    .yt-dark .yt-author-name.is-channel-owner {
      background: #888888;
      color: #0f0f0f !important;
    }

    /* Verified Badge */
    .yt-verified-icon {
      width: 13px;
      height: 13px;
      vertical-align: middle;
      fill: #606060;
    }

    .yt-dark .yt-verified-icon {
      fill: #aaaaaa;
    }

    .yt-author-name.is-channel-owner .yt-verified-icon {
      fill: #ffffff;
    }

    .yt-dark .yt-author-name.is-channel-owner .yt-verified-icon {
      fill: #0f0f0f;
    }

    .yt-time-ago {
      font-size: 12px;
      font-weight: 400;
    }

    .yt-light .yt-time-ago {
      color: #606060;
    }

    .yt-dark .yt-time-ago {
      color: #aaaaaa;
    }

        .yt-edited-mark {
      font-size: 12px;
      font-weight: 400;
    }

    .yt-light .yt-edited-mark {
      color: #606060;
    }

    .yt-dark .yt-edited-mark {
      color: #aaaaaa;
    }

    /* Comment Text */
    .yt-comment-text {
      font-size: 14px;
      line-height: 20px;
      font-weight: 400;
      word-break: break-word;
      white-space: pre-line;
      margin-top: 2px;
      margin-bottom: 3px;
    }

    .yt-light .yt-comment-text {
      color: #0f0f0f;
    }

    .yt-dark .yt-comment-text {
      color: #f1f1f1;
    }

    .yt-comment-text strong {
      font-weight: 600;
    }

    .yt-comment-text .yt-tag-link {
      color: #065fd4;
      text-decoration: none;
    }

    .yt-dark .yt-comment-text .yt-tag-link {
      color: #3ea6ff;
    }

    /* Actions Bar */
    .yt-actions-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 5px;
      height: 30px;
    }

    .yt-action-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: transparent;
      border: none;
      padding: 0;
      font-family: inherit;
      cursor: default;
    }

    /* Iconos alineados micrométricamente con el centro del texto */
    .yt-action-btn span.icon-slot {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transform: translateY(-1.5px);
    }

        .yt-action-btn img, .yt-action-btn svg {
      width: 15.5px;
      height: 15.5px;
      display: block;
      transition: filter 0.12s ease;
    }

    .yt-dark .yt-action-btn img,
    .yt-dark .yt-action-btn svg {
      filter: brightness(0) invert(1);
    }

    .yt-light .yt-action-btn img,
    .yt-light .yt-action-btn svg {
      filter: none;
    }

    .yt-likes-count {
      font-size: 12px;
      font-weight: 400;
      line-height: 1;
    }

    .yt-light .yt-likes-count {
      color: #606060;
    }

    .yt-dark .yt-likes-count {
      color: #aaaaaa;
    }

    /* Corazón del Creador (~28px Avatar + Corazón Rojo con Trazado Blanco) */
    .yt-creator-heart-wrap {
      display: inline-flex;
      align-items: center;
      position: relative;
      margin-left: 3px;
      width: 29px;
      height: 29px;
      flex-shrink: 0;
      vertical-align: middle;
    }

    .yt-creator-heart-avatar {
      width: 27px;
      height: 27px;
      border-radius: 50%;
      object-fit: cover;
      display: block;
      background: transparent;
      border: none;
      outline: none;
    }

    .yt-creator-heart-icon-badge {
      position: absolute;
      right: -2px;
      bottom: -2px;
      width: 14.5px;
      height: 14.5px;
      display: flex;
      align-items: center;
      justify-content: center;
      pointer-events: none;
    }

    /* Responder */
    .yt-reply-btn {
      background: transparent;
      border: none;
      padding: 0;
      margin: 0;
      outline: none;
      font-family: inherit;
      font-size: 12px;
      font-weight: 600;
      line-height: 1;
      cursor: default;
    }

    .yt-light .yt-reply-btn {
      color: #0f0f0f;
    }

    .yt-dark .yt-reply-btn {
      color: #f1f1f1;
    }

    /* Respuestas */
    .yt-replies-row {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-top: 4px;
      font-size: 12px;
      font-weight: 600;
      color: #065fd4;
      cursor: default;
    }

    .yt-dark .yt-replies-row {
      color: #3ea6ff;
    }

    .yt-replies-row svg {
      width: 16px;
      height: 16px;
      fill: currentColor;
    }

    /* ========================================================
       SECCIÓN DE EXPORTACIÓN
       ======================================================== */
    .export-section-wrap {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .export-primary-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .btn-export {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 16px;
      border-radius: 12px;
      font-size: 13.5px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      border: none;
      transition: all 0.15s ease;
      text-decoration: none;
    }

    .btn-export:active {
      transform: scale(0.98);
    }

    .btn-export-primary {
      background: #0f172a;
      color: #ffffff;
      box-shadow: 0 2px 8px rgba(15, 23, 42, 0.15);
    }

    .btn-export-primary:hover {
      background: #1e293b;
    }

    .btn-export-secondary {
      background: #f1f5f9;
      color: #0f172a;
      border: 1px solid #cbd5e1;
    }

    .btn-export-secondary:hover {
      background: #e2e8f0;
    }

    .btn-export-copy {
      background: #ffffff;
      color: #0f172a;
      border: 1.5px solid #cbd5e1;
      width: 100%;
      padding: 11px 16px;
    }

    .btn-export-copy:hover {
      background: #f8fafc;
      border-color: #0f172a;
    }

    .export-extra-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 2px;
    }

    .btn-export-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      background: #ffffff;
      color: #64748b;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 8px 12px;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.15s ease;
    }

    .btn-export-pill:hover {
      background: #f8fafc;
      color: #0f172a;
      border-color: #cbd5e1;
    }

    .btn-export svg, .btn-export-pill svg {
      width: 16px;
      height: 16px;
      fill: currentColor;
      flex-shrink: 0;
    }

    /* Toast */
    #toast-msg {
      position: fixed;
      bottom: 24px;
      right: 24px;
      background: #0f172a;
      color: #ffffff;
      padding: 12px 18px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
      font-size: 13px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 10px;
      transform: translateY(100px);
      opacity: 0;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      z-index: 1000;
    }

    #toast-msg.show {
      transform: translateY(0);
      opacity: 1;
    }