.htws-wrap {
    --htws-bg: #ffffff;
    --htws-surface: #fafafa;
    --htws-border: #e6e6e6;
    --htws-dark: #151515;
    --htws-text: #333333;
    --htws-muted: #777777;
    --htws-accent: #666666;
    --htws-accent-hover: #4d4d4d;
    --htws-error: #c0392b;

    position: relative;
    max-width: 760px;
    margin: 2rem auto;
    padding: 2rem 1.75rem;
    background: var(--htws-bg);
    color: var(--htws-text);
    border: 1px solid var(--htws-border);
    border-radius: 6px;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Inter", system-ui, sans-serif;
    font-size: 14px;
    line-height: 24px;
    box-sizing: border-box;
  }
  .htws-wrap *, .htws-wrap *::before, .htws-wrap *::after { box-sizing: border-box; }

  .htws-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--htws-border);
  }
  .htws-title {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    letter-spacing: -0.022em;
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--htws-dark);
    margin: 0 0 0.35rem 0;
    line-height: 1.25;
  }
  .htws-sub {
    font-size: 0.95rem;
    color: var(--htws-muted);
    margin: 0;
  }

  .htws-form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
  }
  .htws-input {
    flex: 1;
    min-width: 0;
    padding: 0.75rem 1rem;
    background: var(--htws-bg);
    border: 1px solid var(--htws-border);
    color: var(--htws-dark);
    font-family: inherit;
    font-size: 14px;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s ease;
  }
  .htws-input:focus { border-color: var(--htws-accent); }
  .htws-input::placeholder { color: var(--htws-muted); }

  .htws-btn {
    padding: 0.75rem 1.5rem;
    background: #000000;
    border: 1px solid #000000;
    color: #ffffff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s ease, border-color 0.2s ease;
  }
  .htws-btn:hover:not(:disabled) { background: var(--htws-muted); border-color: var(--htws-muted); }
  .htws-btn:disabled { opacity: 0.5; cursor: not-allowed; }

  .htws-output {
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--htws-border);
    min-height: 2rem;
    font-size: 15px;
    line-height: 1.7;
  }
  .htws-output:empty { display: none; }

  .htws-output h1, .htws-output h2, .htws-output h3 {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    letter-spacing: -0.022em;
    color: var(--htws-dark);
    font-weight: 700;
    margin: 1.4rem 0 0.6rem 0;
    line-height: 1.3;
  }
  .htws-output h1 { font-size: 1.4rem; }
  .htws-output h2 { font-size: 1.2rem; }
  .htws-output h3 { font-size: 1.05rem; }
  .htws-output p { margin: 0.7rem 0; }
  .htws-output ul, .htws-output ol { margin: 0.7rem 0 0.7rem 1.25rem; padding: 0; }
  .htws-output li { margin: 0.3rem 0; }
  .htws-output a { color: var(--htws-accent); text-decoration: underline; }
  .htws-output a:hover { color: var(--htws-accent-hover); }
  .htws-output strong { color: var(--htws-dark); font-weight: 700; }
  .htws-output em { font-style: italic; }
  .htws-output blockquote {
    border-left: 3px solid var(--htws-accent);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--htws-muted);
  }
  .htws-output code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.9em;
    background: var(--htws-surface);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    color: var(--htws-dark);
    border: 1px solid var(--htws-border);
  }
  .htws-output pre {
    background: var(--htws-surface);
    padding: 0.85rem 1rem;
    border-radius: 6px;
    overflow-x: auto;
    border: 1px solid var(--htws-border);
  }
  .htws-output pre code { background: transparent; padding: 0; border: 0; }
  .htws-output hr { border: 0; border-top: 1px solid var(--htws-border); margin: 1.5rem 0; }

  /* Print this study */
  .htws-print-row { display: none; margin-top: 1.25rem; }
  .htws-print-row.is-visible { display: block; }
  .htws-print-btn {
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 1px solid var(--htws-dark);
    color: var(--htws-dark);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s ease, color 0.2s ease;
  }
  .htws-print-btn:hover { background: var(--htws-dark); color: #ffffff; }
  /* Hidden on screen; rendered only inside the dedicated print window,
     which carries its own styles. */
  .htws-print-head { display: none; }

  .htws-output table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 14px;
  }
  .htws-output th, .htws-output td {
    text-align: left;
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--htws-border);
    vertical-align: top;
  }
  .htws-output th { font-weight: 700; color: var(--htws-dark); background: var(--htws-surface); }

  .htws-loading {
    text-align: center;
    padding: 2rem 0 1.75rem;
  }
  .htws-loading-shema {
    font-size: 1.1rem;
    color: var(--htws-muted);
    opacity: 0.55;
    margin-bottom: 1.1rem;
    direction: rtl;
    letter-spacing: 0.01em;
    line-height: 1.4;
  }
  .htws-loading-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0;
  }
  .htws-loading-left {
    text-align: center;
    padding-right: 1.5rem;
    min-width: 7em;
    flex: 0 0 auto;
  }
  .htws-loading-right {
    text-align: center;
    border-left: 1px solid var(--htws-border);
    padding-left: 1.5rem;
    min-width: 5em;
    flex: 0 0 auto;
  }
  .htws-loading-word {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--htws-dark);
    font-style: italic;
    letter-spacing: -0.022em;
    line-height: 1.4;
    min-height: 1.4em;
    opacity: 1;
    transition: opacity 0.4s ease-in-out;
  }
  .htws-loading-word.is-fading {
    opacity: 0;
  }
  .htws-loading-counter {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--htws-dark);
    letter-spacing: -0.022em;
    line-height: 1;
    min-width: 1.5em;
    margin-bottom: 0.4rem;
  }
  .htws-loading-counter-caption {
    font-size: 0.7rem;
    color: var(--htws-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 600;
  }
  .htws-loading-progress {
    margin-top: 1.1rem;
    font-size: 0.8rem;
    color: var(--htws-muted);
    min-height: 1.2em;
    letter-spacing: 0.02em;
  }
  @keyframes htwsUnveil {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .htws-output.is-unveiling { animation: htwsUnveil 0.6s ease; }
  @media (max-width: 480px) {
    .htws-loading-grid {
      flex-direction: column;
      gap: 1rem;
    }
    .htws-loading-left { padding-right: 0; }
    .htws-loading-right {
      border-left: 0;
      border-top: 1px solid var(--htws-border);
      padding-left: 0;
      padding-top: 1rem;
    }
    .htws-loading-counter { font-size: 2rem; }
  }
  .htws-error {
    color: var(--htws-error);
    border-left: 3px solid var(--htws-error);
    padding: 0.5rem 0.9rem;
    background: rgba(192, 57, 43, 0.06);
    font-size: 0.95rem;
    border-radius: 0 6px 6px 0;
  }

  .htws-canonical {
    padding: 1.5rem 1.5rem 1.4rem;
    background: var(--htws-surface);
    border: 1px solid var(--htws-border);
    border-radius: 6px;
  }
  .htws-canonical-eyebrow {
    font-size: 0.7rem;
    color: var(--htws-muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    margin: 0 0 0.55rem 0;
  }
  .htws-canonical-title {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    letter-spacing: -0.022em;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--htws-dark);
    margin: 0 0 0.5rem 0;
    line-height: 1.35;
  }
  .htws-canonical-title em { font-style: italic; }
  .htws-canonical-blurb {
    font-size: 0.95rem;
    color: var(--htws-muted);
    margin: 0 0 1rem 0;
    line-height: 1.55;
  }
  .htws-canonical-link {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    background: #000000;
    color: #ffffff !important;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none !important;
    transition: background 0.2s ease;
  }
  .htws-canonical-link:hover { background: var(--htws-muted); }

  .htws-bottom-row {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--htws-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .htws-share {
    position: relative;
    width: 32px;
    height: 32px;
    padding: 0;
    background: var(--htws-bg);
    border: 1px solid var(--htws-border);
    border-radius: 50%;
    color: var(--htws-muted);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: color 0.2s ease, border-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  }
  .htws-share.is-visible { display: inline-flex; }
  .htws-share:hover {
    color: var(--htws-dark);
    border-color: var(--htws-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  }
  .htws-share:active { transform: translateY(0); }
  .htws-share:focus-visible {
    outline: none;
    border-color: var(--htws-dark);
    box-shadow: 0 0 0 3px rgba(102, 102, 102, 0.18);
  }
  .htws-share svg {
    width: 14px;
    height: 14px;
    display: block;
  }
  .htws-share-tip {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 50%;
    transform: translateX(50%);
    background: var(--htws-dark);
    color: #fff;
    font-size: 11px;
    line-height: 1;
    padding: 5px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }
  .htws-share-tip.is-visible { opacity: 1; }

  .htws-subscribe {
    margin-top: 1.75rem;
    padding: 1.25rem 1.25rem 1rem;
    background: var(--htws-surface);
    border: 1px solid var(--htws-border);
    border-radius: 6px;
    display: none;
    position: relative;
  }
  .htws-subscribe.is-visible { display: block; }
  .htws-subscribe-title {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Inter", system-ui, sans-serif;
    letter-spacing: -0.022em;
    font-size: 1rem;
    font-weight: 700;
    color: var(--htws-dark);
    margin: 0 0 0.25rem 0;
    line-height: 1.3;
  }
  .htws-subscribe-blurb {
    font-size: 0.9rem;
    color: var(--htws-muted);
    margin: 0 0 0.85rem 0;
    line-height: 1.5;
  }
  .htws-subscribe-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
  }
  .htws-subscribe-input {
    flex: 1;
    min-width: 0;
    padding: 0.6rem 0.85rem;
    background: var(--htws-bg);
    border: 1px solid var(--htws-border);
    color: var(--htws-dark);
    font-family: inherit;
    font-size: 14px;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s ease;
  }
  .htws-subscribe-input:focus { border-color: var(--htws-accent); }
  .htws-subscribe-input::placeholder { color: var(--htws-muted); }
  .htws-subscribe-btn {
    padding: 0.6rem 1.1rem;
    background: #000000;
    border: 1px solid #000000;
    color: #ffffff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s ease, border-color 0.2s ease;
  }
  .htws-subscribe-btn:hover:not(:disabled) { background: var(--htws-muted); border-color: var(--htws-muted); }
  .htws-subscribe-btn:disabled { opacity: 0.5; cursor: not-allowed; }
  .htws-subscribe-status {
    font-size: 0.85rem;
    margin: 0.65rem 0 0 0;
    line-height: 1.4;
    min-height: 1.2em;
  }
  .htws-subscribe-status.is-success { color: var(--htws-dark); }
  .htws-subscribe-status.is-error { color: var(--htws-error); }
  .htws-subscribe-dismiss {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 22px;
    height: 22px;
    padding: 0;
    background: transparent;
    border: 0;
    color: var(--htws-muted);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.15s ease, background 0.15s ease;
  }
  .htws-subscribe-dismiss:hover {
    color: var(--htws-dark);
    background: rgba(0, 0, 0, 0.04);
  }

  .htws-footer {
    margin: 0;
    font-size: 11px;
    color: #aaaaaa;
    text-align: left;
    letter-spacing: 0.02em;
  }

  @media (max-width: 560px) {
    .htws-wrap { margin: 1rem; padding: 1.5rem 1.1rem; }
    .htws-title { font-size: 1.35rem; }
    .htws-form { flex-direction: column; }
    .htws-btn { width: 100%; }
    .htws-share { bottom: 0.65rem; right: 0.65rem; }
  }