@media screen {
  :root {
    --at-primary: #0f79f3;
    --at-accent: #00b69b;
    --at-card: #ffffff;
    --at-muted: #697689;
    --at-border: #e7e2e2;
    --at-soft: #eff3f9;
    --at-font: "Saira", sans-serif;
    --shadow-soft: 0 10px 32px rgba(39, 56, 83, .06);
    --shadow-lift: 0 16px 40px rgba(39, 56, 83, .10);
  }

  .utility-theme {
    min-height: 100vh;
    margin: 0;
    background:
      radial-gradient(circle at top left, rgba(15, 121, 243, .12), transparent 28%),
      linear-gradient(135deg, #eff3f9 0%, #f8fbff 48%, #eef6ff 100%);
    color: #1f2937;
    font-family: var(--at-font);
  }

  .utility-theme *,
  .utility-theme *::before,
  .utility-theme *::after {
    box-sizing: border-box;
  }

  .utility-theme button,
  .utility-theme input,
  .utility-theme select {
    font: inherit;
  }

  .utility-theme a {
    color: inherit;
    text-decoration: none;
  }

  .utility-theme .page-shell {
    position: static;
    width: min(1440px, calc(100% - 36px));
    min-height: 100vh;
    margin: 0 auto;
    padding: 22px 0 60px;
  }

  .utility-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
    border: 1px solid var(--at-border);
    border-radius: 18px;
    background: var(--at-card);
    box-shadow: var(--shadow-soft);
    padding: 18px 22px;
  }

  .utility-brand {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .utility-logo {
    display: block;
    width: 210px;
    max-width: 42vw;
    height: auto;
  }

  .utility-tool-icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: #f1f2fd;
  }

  .utility-tool-icon img {
    display: block;
    width: 36px;
    height: 36px;
    object-fit: contain;
  }

  .utility-theme .kicker {
    margin: 0 0 2px;
    color: var(--at-primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    line-height: 22px;
    text-transform: uppercase;
  }

  .utility-theme h1,
  .utility-theme h2,
  .utility-theme h3,
  .utility-theme .heading--medium {
    margin: 0;
    color: #111827;
    font-weight: 700;
    letter-spacing: 0;
  }

  .utility-theme h1,
  .utility-theme .heading--medium {
    font-size: 26px;
    line-height: 34px;
  }

  .utility-theme .section-help {
    margin: 6px 0 0;
    color: var(--at-muted);
    font-size: 14px;
    line-height: 22px;
  }

  .utility-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .utility-panel,
  .utility-theme .control-panel,
  .utility-theme .preview-stage {
    border: 1px solid var(--at-border);
    border-radius: 18px;
    background: var(--at-card);
    box-shadow: var(--shadow-soft);
    padding: 22px;
  }

  .utility-grid {
    display: grid;
    grid-template-columns: minmax(320px, 430px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .utility-theme .tool-grid {
    gap: 24px;
    margin-left: 0;
  }

  .utility-theme .field,
  .utility-form {
    display: grid;
    gap: 12px;
  }

  .utility-theme .field {
    margin-bottom: 18px;
  }

  .utility-theme .field span,
  .field-label {
    color: #475569;
    font-size: 14px;
    font-weight: 700;
    line-height: 22px;
  }

  .utility-theme input,
  .utility-theme select {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--at-border);
    border-radius: 12px;
    background: #fff;
    color: #111827;
    padding: 9px 12px;
  }

  .utility-theme input:focus,
  .utility-theme select:focus {
    border-color: rgba(15, 121, 243, .55);
    box-shadow: 0 0 0 4px rgba(15, 121, 243, .10);
    outline: 0;
  }

  .button-primary,
  .utility-theme .print-button,
  .utility-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border: 0;
    border-radius: 12px;
    background: var(--at-primary);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(15, 121, 243, .20);
    padding: 10px 22px;
    font-size: 16px;
    line-height: 20px;
  }

  .button-primary:hover,
  .utility-theme .print-button:hover,
  .utility-button:hover {
    background: #0b66cf;
  }

  .button-secondary,
  .copy-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border: 1px solid var(--at-border);
    border-radius: 10px;
    background: #fff;
    color: #475569;
    cursor: pointer;
    padding: 8px 12px;
    font-size: 14px;
  }

  .button-secondary:hover,
  .copy-button:hover,
  .copy-button.is-copied {
    border-color: rgba(15, 121, 243, .28);
    background: #f1f2fd;
    color: var(--at-primary);
  }

  .utility-result-list {
    display: grid;
    gap: 12px;
    margin: 0;
  }

  .utility-result {
    display: grid;
    gap: 8px;
    border: 1px solid #eef2f7;
    border-radius: 14px;
    background: #f8fafc;
    padding: 14px;
  }

  .utility-result__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
  }

  .utility-result strong {
    color: #111827;
  }

  .utility-result code,
  .utility-muted-code {
    overflow-wrap: anywhere;
    color: #475569;
    font-family: "Source Code Pro", Consolas, monospace;
    font-size: 14px;
    line-height: 22px;
  }

  .utility-meta {
    color: var(--at-muted);
    font-size: 13px;
  }

  .utility-theme .status-line {
    color: var(--at-muted);
  }

  .utility-theme .status-line.is-error {
    color: #e74c3c;
  }

  .utility-theme .print-button {
    margin-top: 4px;
    margin-right: 0;
  }

  .utility-theme .preview-stage {
    overflow-x: auto;
  }

  .utility-theme .print-label {
    box-shadow: 0 10px 32px rgba(39, 56, 83, .08);
  }

  @media (max-width: 980px) {
    .utility-header,
    .utility-grid {
      grid-template-columns: 1fr;
    }

    .utility-header {
      display: grid;
    }

    .utility-actions {
      justify-content: flex-start;
    }

    .utility-theme .tool-grid {
      display: grid;
      grid-template-columns: 1fr;
      margin-left: 0;
    }
  }

  @media (max-width: 620px) {
    .utility-theme .page-shell {
      width: calc(100% - 28px);
      padding-top: 14px;
    }

    .utility-brand {
      align-items: flex-start;
    }

    .utility-logo {
      width: 170px;
      max-width: 100%;
    }

    .utility-theme .field-row {
      grid-template-columns: 1fr;
    }
  }
}