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

  :root {
    --bg: #0a0a0a;
    --surface: #141414;
    --surface2: #242424;
    --border: #333333;
    --primary: #ff4500;
    --primary-hover: #ce3800;
    --text: #cfcfcf;
    --muted: #8b8b8b;
    --success: #28a745;
    --error: #dc3545;
    --warning: #ffc107;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem 4rem;
  }

  header {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    width: 100%;
    max-width: 640px;
  }

  header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #fff;
  }

  header p {
    color: var(--muted);
    margin-top: 0.4rem;
    font-size: 0.95rem;
  }

  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.75rem;
    width: 100%;
    max-width: 640px;
  }

  .card + .card { margin-top: 1.25rem; }

  label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
  }

  input[type="text"], input[type="url"], input[type="password"], input[type="number"], input[type="file"], select {
    width: 100%;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
    padding: 0.65rem 0.9rem;
    outline: none;
    transition: border-color 0.15s;
  }

  /* Strip native chrome from <select> and paint our own chevron so it
     matches the dark surface and border tokens. background-image is a
     tiny inline SVG (no extra HTTP round-trip, no font dependency); the
     fill colour is the muted token so the arrow recedes until focus. */
  select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding-right: 2.2rem;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'><path d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    cursor: pointer;
  }
  select:focus { border-color: var(--primary); }
  /* The native popup itself is browser-painted and only partially
     themable. These two properties improve readability on Chromium/
     Firefox where they're honoured; Safari ignores them and shows the
     system light popup regardless. */
  select option { background: var(--surface2); color: var(--text); }

  input[type="text"]:focus, input[type="url"]:focus, input[type="password"]:focus, input[type="number"]:focus {
    border-color: var(--primary);
  }

  /* Chrome/Safari paint autofilled fields with a baked-in light-blue
     background that ignores our dark-theme variables. Override with an
     inset shadow the size of the field - the standard hack - plus a
     text-fill-color so the text stays readable. The transition is the
     ride-the-out trick: autofill style lasts ~5000s, so deferring our
     style application by the same duration effectively cancels it. */
  input:-webkit-autofill,
  input:-webkit-autofill:hover,
  input:-webkit-autofill:focus,
  input:-webkit-autofill:active {
    -webkit-text-fill-color: var(--text);
    -webkit-box-shadow: 0 0 0 1000px var(--surface2) inset;
    box-shadow: 0 0 0 1000px var(--surface2) inset;
    caret-color: var(--text);
    transition: background-color 5000s ease-in-out 0s, color 5000s ease-in-out 0s;
  }

  .file-drop {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--surface2);
    border: 1px dashed var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    color: var(--muted);
    font-size: 0.9rem;
  }

  .file-drop:hover {
    border-color: var(--primary);
    background: rgba(255,69,0,0.05);
    color: var(--text);
  }

  .file-drop.has-file {
    border-style: solid;
    border-color: var(--border);
    color: var(--text);
  }

  .file-drop input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    font-size: 0;
  }

  .field { margin-bottom: 1.25rem; }
  .field:last-child { margin-bottom: 0; }

  .hint {
    font-size: 0.8rem;
    color: var(--muted);
    margin-top: 0.35rem;
  }

  .sign-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .sign-option {
    position: relative;
  }

  .sign-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
  }

  .sign-option label {
    display: flex;
    flex-direction: column;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    transition: border-color 0.15s, background 0.15s;
  }

  .sign-option label small {
    font-weight: 400;
    font-size: 0.78rem;
    color: var(--muted);
    margin-top: 0.2rem;
  }

  .sign-option input:checked + label {
    border-color: var(--primary);
    background: rgba(255,69,0,0.1);
  }

  #keystore-section {
    display: none;
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
  }

  #keystore-section.visible { display: block; }

  .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

  button[type="submit"] {
    width: 100%;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.8rem;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
    margin-top: 0.5rem;
  }

  button[type="submit"]:hover { background: var(--primary-hover); }
  button[type="submit"]:disabled { opacity: 0.5; cursor: not-allowed; }

  #status-card { display: none; }
  #status-card.visible { display: block; }

  .status-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
  }

  .badge.queued  { background: rgba(136,136,170,0.15); color: var(--muted); }
  .badge.building { background: rgba(255,193,7,0.15); color: var(--warning); }
  .badge.done    { background: rgba(40,167,69,0.15); color: var(--success); }
  .badge.failed  { background: rgba(220,53,69,0.15); color: var(--error); }

  .spinner {
    width: 14px; height: 14px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
  }

  @keyframes spin { to { transform: rotate(360deg); } }

  .meta {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 0.75rem;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.75rem;
  }

  .meta strong { color: var(--text); min-width: 0; }
  /* Long values (package names, update codes) must wrap rather than
     push the grid wider than its container — overflow-wrap handles the
     atypical case where the value has no whitespace to break on. */
  .meta strong, .meta code { overflow-wrap: anywhere; word-break: break-all; }

  .error-msg {
    background: rgba(220,53,69,0.1);
    border: 1px solid rgba(220,53,69,0.3);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--error);
    margin-top: 1rem;
    word-break: break-all;
  }

  .dedup-msg {
    background: rgba(255,193,7,0.08);
    border: 1px solid rgba(255,193,7,0.3);
    border-radius: 8px;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.75rem;
  }

  .update-ack {
    background: rgba(76,175,80,0.08);
    border: 1px solid rgba(76,175,80,0.3);
    border-radius: 8px;
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.5;
  }
  .update-ack strong { color: var(--text); }

  .download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.7rem 1.25rem;
    text-decoration: none;
    transition: opacity 0.15s;
  }

  .download-btn:hover { opacity: 0.88; }

  .download-btn-secondary {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
  }

  .download-row {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
  }

  /* Plain informational hint - matches .hint used elsewhere in the form
     (e.g. the self-signed keystore advisory). No alert chrome; this is
     informational about how Bayton signing works, not a warning. */
  #bayton-note {
    display: none;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.5;
  }

  #bayton-note.visible { display: block; }

  .site-logo {
    height: 2rem;
    width: auto;
    display: block;
    margin: 0 auto 0.5rem;
  }

  footer {
    margin-top: 3rem;
    font-size: 0.78rem;
    color: var(--muted);
    text-align: center;
  }

  /* Help button */
  .help-btn {
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: none;
    color: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    font-family: inherit;
    transition: border-color 0.15s, color 0.15s;
    line-height: 1;
  }
  .help-btn:hover { border-color: var(--primary); color: var(--primary); }

  /* Docs modal */
  .modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.75);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: 1rem;
  }
  .modal-backdrop.open { display: flex; }

  .modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
  }
  .modal-header h2 { font-size: 1rem; font-weight: 700; color: #fff; }

  .modal-close {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: color 0.15s;
  }
  .modal-close:hover { color: var(--text); }

  .modal-body {
    overflow-y: auto;
    padding: 1.5rem;
  }
  .modal-body section { margin-bottom: 1.75rem; }
  .modal-body section:last-child { margin-bottom: 0; }

  .modal-body h3 {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
    margin-bottom: 0.65rem;
  }
  .modal-body p, .modal-body dd, .modal-body li {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.65;
    margin-bottom: 0.4rem;
  }
  .modal-body dt {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-top: 0.75rem;
    margin-bottom: 0.15rem;
  }
  .modal-body dt:first-child { margin-top: 0; }
  .modal-body ul { padding-left: 1.2rem; }
  .modal-body li { margin-bottom: 0.35rem; }

  /* Colour picker row */
  .colour-row {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
  }

  .colour-row input[type="text"] { flex: 1; }

  /* Visible swatch - a plain button so sizing is fully under our control */
  .colour-swatch {
    width: 2.75rem;
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
    background: #ffffff;
    transition: border-color 0.15s;
  }

  .colour-swatch:hover { border-color: var(--primary); }

  /* Update code box */
  .update-box {
    background: rgba(255,193,7,0.08);
    border: 1px solid rgba(255,193,7,0.3);
    border-radius: 8px;
    padding: 1rem 1.1rem;
    margin-top: 1.25rem;
  }

  .update-box-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--warning);
    margin-bottom: 0.45rem;
  }

  .update-code-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.6rem;
    min-width: 0; /* allow children to shrink below their content width */
  }

  .update-code {
    font-family: ui-monospace, 'Cascadia Code', 'Fira Mono', monospace;
    font-size: 0.88rem;
    color: #fff;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    flex: 1;
    min-width: 0; /* unblock flex shrinking past the intrinsic <code> width */
    overflow-wrap: anywhere;
    overflow-x: auto;
    white-space: nowrap;
    user-select: all;
  }

  .copy-btn {
    flex-shrink: 0;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
    font-family: inherit;
    font-weight: 600;
    transition: border-color 0.15s, color 0.15s;
  }

  .copy-btn:hover { border-color: var(--primary); color: var(--primary); }

  /* Toggle row - label left, switch right */
  .toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.25rem 0;
    cursor: pointer;
    user-select: none;
    /* reset inherited label styles */
    text-transform: none;
    letter-spacing: 0;
    color: var(--text);
    font-weight: 600;
    font-size: 0.9rem;
  }
  .toggle-row:hover { color: var(--muted); }
  /* Visually hide the checkbox but keep it in the tab sequence and
     readable to assistive tech. `display:none` (WAG's original) drops
     it from the accessibility tree AND tab order, locking out keyboard
     and screenreader users entirely. */
  .toggle-row input[type="checkbox"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    margin: 0;
  }
  /* Visible focus ring on the toggle-switch when the (invisible) input
     receives keyboard focus. :focus-visible suppresses it on mouse
     activation, matching browser defaults. */
  .toggle-row input[type="checkbox"]:focus-visible ~ .toggle-switch {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }
  /* The visual switch - pill with inline On/Off label and sliding knob */
  .toggle-switch {
    position: relative;
    flex-shrink: 0;
    width: 72px;
    height: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: background 0.25s, border-color 0.25s;
  }
  /* Text label sits opposite the knob */
  .toggle-switch::before {
    content: 'Off';
    position: absolute;
    right: 10px;
    left: auto;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    pointer-events: none;
    transition: color 0.2s;
  }
  /* Sliding knob */
  .toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 4px rgba(0,0,0,0.4);
    transition: transform 0.25s cubic-bezier(0.4,0,0.2,1);
  }
  /* ON state: orange pill, label on the left, knob slides right */
  .toggle-row input:checked ~ .toggle-switch {
    background: var(--primary);
    border-color: var(--primary);
  }
  .toggle-row input:checked ~ .toggle-switch::before {
    content: 'On';
    left: 10px;
    right: auto;
    color: #fff;
  }
  .toggle-row input:checked ~ .toggle-switch::after {
    transform: translateX(40px);
  }

  /* Mobile */
  @media (max-width: 540px) {
    .sign-options { grid-template-columns: 1fr !important; }
    .row { grid-template-columns: 1fr; }
    body { padding: 1.5rem 0.75rem 3rem; }
    .card { padding: 1.25rem; }
  }

  /* ==================================================================
     KAG-specific additions: apps-list, settings-grid, JSON import row.
     ================================================================== */

  /* Layout picker: preset on the left, custom inline on the right.
     Flex-wrap means narrow viewports drop the custom inputs onto a
     second line gracefully - no media-query needed. Number inputs are
     constrained to 4ch so two of them fit alongside the preset on a
     mid-size screen. */
  .layout-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
  }
  .layout-row .layout-prompt,
  .layout-row .layout-or,
  .layout-row .layout-by {
    color: var(--muted);
    font-size: 0.9rem;
    white-space: nowrap;
  }
  /* Size the preset select to its content (widest option is "9 × 10",
     plus the chevron padding-right we added globally for selects). No
     min-width: the WAG-style hint copy below tells the user the cap. */
  .layout-row select { width: auto; }
  .layout-row input[type="number"] {
    width: 5rem;
    /* Strip browser spinner so the field reads as plain text input -
       the labels "cols"/"rows" carry the semantic. */
    appearance: textfield;
    -moz-appearance: textfield;
  }
  .layout-row input[type="number"]::-webkit-outer-spin-button,
  .layout-row input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }

  @media (max-width: 540px) {
    /* On phones the inline form would crowd; let the "or custom" half
       wrap to a new line and give the inputs more breathing room. */
    .layout-row .layout-or { width: 100%; margin-top: 0.25rem; }
    .layout-row input[type="number"] { flex: 1; max-width: 6rem; }
  }


  /* Dynamic apps list. Each row is package + row + col + label + remove. */
  .app-row {
    display: grid;
    grid-template-columns: 1fr 70px 70px 1fr 32px;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    align-items: center;
  }
  .app-row input[type="text"],
  .app-row select {
    margin: 0;
  }
  .app-row.app-row-conflict input,
  .app-row.app-row-conflict select {
    border-color: #ff5252;
    box-shadow: 0 0 0 1px rgba(255, 82, 82, 0.4);
  }
  /* Amber flag when a layout shrink relocated this app's cell. Cleared
     the next time the user changes either row/col select on this row -
     they've acknowledged the new position. */
  .app-row.app-row-moved select {
    border-color: #f0a000;
    box-shadow: 0 0 0 1px rgba(240, 160, 0, 0.4);
  }
  .remove-row-btn {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
  }
  .remove-row-btn:hover {
    color: #ff5252;
    border-color: #ff5252;
    background: rgba(255, 82, 82, 0.08);
  }
  .add-row-btn {
    background: transparent;
    color: var(--text);
    border: 1px dashed var(--border);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    width: 100%;
    margin-top: 0.25rem;
    transition: border-color 0.15s, background 0.15s;
  }
  .add-row-btn:hover {
    border-color: var(--primary);
    background: rgba(255, 69, 0, 0.05);
  }

  /* Settings-intents checkbox grid: 2-column on desktop, 1-column on mobile. */
  .checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.4rem 1rem;
    margin-top: 0.5rem;
  }
  .check-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text);
    user-select: none;
    transition: border-color 0.15s, background 0.15s;
  }
  .check-row:hover { border-color: var(--primary); }
  .check-row input { margin: 0; }

  @media (max-width: 540px) {
    .app-row { grid-template-columns: 1fr; }
    .checkbox-grid { grid-template-columns: 1fr; }
  }