/* Tip Calculator — Custom Styles */

    .calc-form {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .input-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

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

    .currency-input-wrapper {
      position: relative;
      display: flex;
      align-items: center;
    }

    .currency-input-wrapper .currency-prefix {
      position: absolute;
      left: 16px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--color-text-muted);
      pointer-events: none;
    }

    .currency-input-wrapper input {
      padding: 14px 16px 14px 34px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--color-text);
      background: var(--color-surface);
      transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
      outline: none;
      width: 100%;
    }

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

    .currency-input-wrapper input::placeholder {
      color: var(--color-text-muted);
      font-weight: 400;
    }

    /* Tip Presets */
    .tip-presets {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .tip-preset-btn {
      padding: 10px 20px;
      border: 2px solid var(--color-border);
      border-radius: var(--radius-sm);
      background: var(--color-surface);
      font-family: var(--font-body);
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--color-text);
      cursor: pointer;
      transition: all var(--transition-fast);
    }

    .tip-preset-btn:hover {
      border-color: var(--color-primary);
      background: var(--color-primary-light);
    }

    .tip-preset-btn.active {
      border-color: var(--color-primary);
      background: var(--color-primary);
      color: #fff;
    }

    .custom-tip-wrapper {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .custom-tip-wrapper input {
      width: 70px;
      padding: 10px 12px;
      border: 2px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--color-text);
      background: var(--color-surface);
      text-align: center;
      outline: none;
      -moz-appearance: textfield;
      transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    }

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

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

    .custom-tip-wrapper .suffix {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--color-text-muted);
    }

    /* People Counter */
    .people-counter {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .people-btn {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid var(--color-border);
      border-radius: var(--radius-sm);
      background: var(--color-surface);
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--color-text);
      cursor: pointer;
      transition: all var(--transition-fast);
      user-select: none;
    }

    .people-btn:hover {
      border-color: var(--color-primary);
      background: var(--color-primary-light);
    }

    .people-btn:active {
      transform: scale(0.95);
    }

    .people-count-display {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--color-text);
      min-width: 36px;
      text-align: center;
      font-family: var(--font-mono);
    }

    /* Results Section */
    .results-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 28px;
      padding-top: 28px;
      border-top: 1px solid var(--color-border-light);
    }

    .result-card {
      padding: 20px;
      background: var(--color-bg);
      border: 1px solid var(--color-border-light);
      border-radius: var(--radius-md);
      text-align: center;
      transition: border-color var(--transition-fast);
    }

    .result-card.highlight {
      background: linear-gradient(135deg, #ecfdf5, #d1fae5);
      border-color: #a7f3d0;
    }

    .result-card .result-card-label {
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      margin-bottom: 8px;
    }

    .result-card .result-card-value {
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-text);
      font-family: var(--font-mono);
      letter-spacing: -0.02em;
    }

    .result-card.highlight .result-card-value {
      color: #047857;
    }

    .result-card .result-card-note {
      font-size: 0.78rem;
      color: var(--color-text-muted);
      margin-top: 4px;
    }

    /* Per Person Section */
    .per-person-section {
      display: none;
      margin-top: 12px;
    }

    .per-person-section.visible {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .per-person-section .result-card {
      background: var(--color-primary-light);
      border-color: var(--color-primary-subtle);
    }

    .per-person-section .result-card .result-card-value {
      color: var(--color-primary);
    }

    /* Responsive */
    @media (max-width: 600px) {
      .results-grid {
        grid-template-columns: 1fr;
      }

      .per-person-section.visible {
        grid-template-columns: 1fr;
      }

      .tip-presets {
        gap: 6px;
      }

      .tip-preset-btn {
        padding: 10px 14px;
        font-size: 0.88rem;
      }

      .result-card .result-card-value {
        font-size: 1.6rem;
      }
    }