/* TikTok Engagement Calculator Styles */

    /* Mode Tabs */
    .mode-tabs {
      display: flex;
      gap: 4px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 4px;
      margin-bottom: 28px;
    }

    .mode-tab {
      flex: 1;
      padding: 10px 20px;
      border: none;
      border-radius: 6px;
      background: transparent;
      font-family: var(--font-body);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: all var(--transition-fast);
    }

    .mode-tab:hover {
      color: var(--color-text);
      background: var(--color-surface-hover);
    }

    .mode-tab.active {
      background: var(--color-surface);
      color: var(--color-primary);
      box-shadow: var(--shadow-sm);
    }

    /* Input Form */
    .calc-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 24px;
    }

    .calc-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .calc-field.full-width {
      grid-column: 1 / -1;
    }

    .calc-field label {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--color-text-secondary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .calc-field label .label-hint {
      font-weight: 400;
      text-transform: none;
      letter-spacing: 0;
      color: var(--color-text-muted);
      font-size: 0.75rem;
    }

    .calc-input {
      padding: 12px 16px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 1rem;
      color: var(--color-text);
      background: var(--color-surface);
      outline: none;
      transition: border-color var(--transition-fast);
      width: 100%;
      -moz-appearance: textfield;
    }

    .calc-input::-webkit-inner-spin-button,
    .calc-input::-webkit-outer-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }

    .calc-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px var(--color-primary-light);
    }

    .calc-input::placeholder {
      color: var(--color-text-muted);
    }

    .calc-actions {
      display: flex;
      gap: 12px;
      margin-bottom: 8px;
    }

    /* Results Section */
    .results-section {
      display: none;
      margin-top: 28px;
      padding-top: 28px;
      border-top: 1px solid var(--color-border-light);
    }

    .results-section.visible {
      display: block;
    }

    /* Engagement Rate Hero */
    .rate-hero {
      text-align: center;
      padding: 32px 24px;
      border-radius: var(--radius-md);
      margin-bottom: 24px;
      position: relative;
      overflow: hidden;
    }

    .rate-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      opacity: 0.08;
      background: radial-gradient(circle at 30% 50%, currentColor 0%, transparent 70%);
    }

    .rate-hero .rate-label {
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 8px;
      opacity: 0.8;
    }

    .rate-hero .rate-value {
      font-size: 3.5rem;
      font-weight: 700;
      line-height: 1.1;
      letter-spacing: -0.03em;
    }

    .rate-hero .rate-rating {
      font-size: 1.1rem;
      font-weight: 600;
      margin-top: 8px;
    }

    .rate-hero .rate-mode {
      font-size: 0.8rem;
      font-weight: 500;
      margin-top: 6px;
      opacity: 0.7;
    }

    /* Rating colors */
    .rate-hero.rating-low {
      background: #fef2f2;
      color: #dc2626;
    }

    .rate-hero.rating-below-avg {
      background: #fffbeb;
      color: #d97706;
    }

    .rate-hero.rating-average {
      background: #fefce8;
      color: #ca8a04;
    }

    .rate-hero.rating-good {
      background: #ecfdf5;
      color: #059669;
    }

    .rate-hero.rating-excellent {
      background: #f0fdf4;
      color: #16a34a;
    }

    /* Benchmark Bar */
    .benchmark-section {
      margin-bottom: 24px;
    }

    .benchmark-label {
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      margin-bottom: 12px;
    }

    .benchmark-bar {
      position: relative;
      height: 24px;
      border-radius: 12px;
      overflow: hidden;
      display: flex;
    }

    .benchmark-segment {
      height: 100%;
      position: relative;
    }

    .benchmark-segment:first-child {
      border-radius: 12px 0 0 12px;
    }

    .benchmark-segment:last-child {
      border-radius: 0 12px 12px 0;
    }

    .benchmark-marker {
      position: absolute;
      top: -6px;
      width: 3px;
      height: 36px;
      background: var(--color-text);
      border-radius: 2px;
      transform: translateX(-50%);
      z-index: 5;
      box-shadow: 0 0 0 2px var(--color-surface);
    }

    .benchmark-labels {
      display: flex;
      justify-content: space-between;
      margin-top: 8px;
      font-size: 0.65rem;
      font-weight: 600;
      color: var(--color-text-muted);
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .benchmark-labels span {
      text-align: center;
    }

    /* Metrics Cards */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 24px;
    }

    .metric-card {
      padding: 18px;
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-sm);
    }

    .metric-card-label {
      font-size: 0.7rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      margin-bottom: 6px;
    }

    .metric-card-value {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--color-text);
      font-family: var(--font-mono);
    }

    .metric-card-sub {
      font-size: 0.75rem;
      color: var(--color-text-muted);
      margin-top: 2px;
    }

    /* Tips Section */
    .tips-section {
      margin-top: 28px;
      padding-top: 24px;
      border-top: 1px solid var(--color-border-light);
    }

    .tips-title {
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      margin-bottom: 14px;
    }

    .tips-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .tips-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.88rem;
      color: var(--color-text-secondary);
      line-height: 1.55;
    }

    .tip-icon {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--color-primary-light);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.7rem;
      font-weight: 700;
      margin-top: 1px;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .calc-form {
        grid-template-columns: 1fr;
      }

      .rate-hero .rate-value {
        font-size: 2.5rem;
      }

      .metrics-grid {
        grid-template-columns: 1fr;
      }

      .mode-tab {
        padding: 8px 12px;
        font-size: 0.82rem;
      }

      .calc-actions {
        flex-direction: column;
      }

      .calc-actions .btn {
        width: 100%;
      }
    }