.pkc-wrap {
    --pkc-navy: #1B3358;
    --pkc-navy-deep: #12233d;
    --pkc-teal: #3E93A6;
    --pkc-amber: #C6862E;
    --pkc-bg: #F5F6F8;
    --pkc-card: #FFFFFF;
    --pkc-text: #1F2937;
    --pkc-muted: #6B7280;
    --pkc-border: #E2E5EA;
    --pkc-danger: #B3453B;
    color-scheme: light;
  }
  /* Written as a plain media query (not nested) so older phone browsers apply it */
  @media (prefers-color-scheme: dark) {
    .pkc-wrap:not([data-pkc-theme="light"]) {
      --pkc-bg: #10161f;
      --pkc-card: #1a2230;
      --pkc-text: #EDEFF3;
      --pkc-muted: #9AA3B2;
      --pkc-border: #2b3546;
      --pkc-navy-deep: #0b1420;
      color-scheme: dark;
    }
  }
  .pkc-wrap[data-pkc-theme="dark"] {
    --pkc-bg: #10161f;
    --pkc-card: #1a2230;
    --pkc-text: #EDEFF3;
    --pkc-muted: #9AA3B2;
    --pkc-border: #2b3546;
    --pkc-navy-deep: #0b1420;
    color-scheme: dark;
  }

  .pkc-wrap, .pkc-wrap * { box-sizing: border-box; }
  .pkc-wrap {
    background: var(--pkc-bg);
    color: var(--pkc-text);
    font-family: 'Inter', system-ui, sans-serif;
    /* max() keeps content clear of the notch when a phone is held sideways */
    padding: 32px max(16px, env(safe-area-inset-right, 0px)) 64px max(16px, env(safe-area-inset-left, 0px));
    max-width: 640px;
    margin: 0 auto;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-wrap: break-word;
  }

  .pkc-h1 {
    font-family: 'Barlow Semi Condensed', system-ui, sans-serif;
    font-weight: 700;
    font-size: clamp(28px, 5vw, 38px);
    line-height: 1.15;
    color: var(--pkc-navy);
    margin: 0 0 4px;
    letter-spacing: 0.2px;
  }
  .pkc-wrap[data-pkc-theme="dark"] .pkc-h1 { color: #7fb8c9; }
  @media (prefers-color-scheme: dark) { .pkc-wrap:not([data-pkc-theme="light"]) .pkc-h1 { color: #7fb8c9; } }

  .pkc-sub { color: var(--pkc-muted); margin: 0 0 28px; font-size: 15px; line-height: 1.45; }

  .pkc-card {
    background: var(--pkc-card);
    border: 1px solid var(--pkc-border);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 20px;
  }

  .pkc-lot-picker {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 22px;
  }
  /* Buttons are fully reset and re-declared with !important so the host site's
     own button styles (pill corners, padding, grey fill, capitalised text) can't leak in.
     The :not(#pkc-x) part just adds weight so these win even over the site's ID-based rules. */
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn,
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn {
    all: unset !important;
    box-sizing: border-box !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 0 !important;
    font-family: 'Inter', system-ui, sans-serif !important;
    font-weight: 600 !important;
    line-height: 1.25 !important;
    text-align: center !important;
    cursor: pointer !important;
    touch-action: manipulation !important;
    -webkit-tap-highlight-color: transparent !important;
    -webkit-user-select: none !important;
    user-select: none !important;
  }
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn::before,
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn::after,
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn::before,
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn::after {
    content: none !important;
    display: none !important;
  }

  .pkc-wrap:not(#pkc-x) .pkc-lot-btn {
    min-height: 48px !important;
    padding: 10px 6px !important;
    border: 1.5px solid var(--pkc-border) !important;
    border-radius: 10px !important;
    background: transparent !important;
    color: var(--pkc-text) !important;
    font-size: 13.5px !important;
    transition: border-color 0.15s ease, background 0.15s ease !important;
  }
  /* Hover only where a real pointer exists, so it doesn't stick after a tap */
  @media (hover: hover) {
    .pkc-wrap:not(#pkc-x) .pkc-lot-btn:hover { border-color: var(--pkc-teal) !important; }
  }
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn:active { border-color: var(--pkc-teal) !important; }
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn.pkc-active {
    border-color: var(--pkc-navy) !important;
    background: var(--pkc-navy) !important;
    color: #fff !important;
  }
  /* On the dark card, navy alone is hard to tell from unselected, so add a light ring */
  .pkc-wrap[data-pkc-theme="dark"]:not(#pkc-x) .pkc-lot-btn.pkc-active { border-color: #7fb8c9 !important; }
  @media (prefers-color-scheme: dark) {
    .pkc-wrap:not([data-pkc-theme="light"]):not(#pkc-x) .pkc-lot-btn.pkc-active { border-color: #7fb8c9 !important; }
  }
  .pkc-wrap:not(#pkc-x) .pkc-lot-btn:focus-visible,
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn:focus-visible {
    outline: 2px solid var(--pkc-teal) !important;
    outline-offset: 2px !important;
  }

  .pkc-field-label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--pkc-muted);
    margin-bottom: 6px;
    margin-top: 16px;
  }
  .pkc-field-label.pkc-first { margin-top: 0; }

  .pkc-input {
    -webkit-appearance: none;
    appearance: none;
    display: block;
    width: 100%;
    max-width: 100%;
    min-width: 0;            /* stops iOS date fields pushing past the card edge */
    min-height: 48px;        /* comfortable tap target; also holds height when empty on iOS */
    margin: 0;
    padding: 11px 12px;
    border-radius: 8px;
    border: 1px solid var(--pkc-border);
    background: var(--pkc-bg);
    color: var(--pkc-text);
    font-family: 'Inter', sans-serif;
    font-size: 16px;         /* 16px+ prevents iOS from zooming the page on focus */
    line-height: 1.3;
    text-align: left;
  }
  .pkc-input::-webkit-date-and-time-value { text-align: left; }
  .pkc-input:focus {
    outline: 2px solid var(--pkc-teal);
    outline-offset: 1px;
  }

  .pkc-wrap:not(#pkc-x) .pkc-calc-btn {
    width: 100% !important;
    min-height: 52px !important;
    margin: 22px 0 0 !important;
    padding: 14px !important;
    background: #DCE6F2 !important;
    color: #1B3358 !important;
    border: 1.5px solid #1B3358 !important;
    border-radius: 9px !important;
    font-size: 16px !important;
  }
  @media (hover: hover) {
    .pkc-wrap:not(#pkc-x) .pkc-calc-btn:hover:not(:disabled) { background: #C7D6E9 !important; }
  }
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn:active:not(:disabled) { background: #C7D6E9 !important; }
  .pkc-wrap:not(#pkc-x) .pkc-calc-btn:disabled { opacity: 0.5 !important; cursor: not-allowed !important; }
  .pkc-input.pkc-invalid { border-color: var(--pkc-danger); }

  .pkc-result { display: none; margin-top: 20px; }
  .pkc-result.pkc-show { display: block; }

  .pkc-result-total {
    text-align: center;
    padding: 6px 0 18px;
    border-bottom: 1px solid var(--pkc-border);
    margin-bottom: 16px;
  }
  .pkc-result-total .pkc-amount {
    font-family: 'Barlow Semi Condensed', sans-serif;
    font-weight: 700;
    font-size: clamp(38px, 12vw, 46px);
    line-height: 1.15;
    color: var(--pkc-navy);
  }
  .pkc-wrap[data-pkc-theme="dark"] .pkc-result-total .pkc-amount { color: #7fb8c9; }
  @media (prefers-color-scheme: dark) { .pkc-wrap:not([data-pkc-theme="light"]) .pkc-result-total .pkc-amount { color: #7fb8c9; } }
  .pkc-result-total .pkc-duration-label { color: var(--pkc-muted); font-size: 13px; }

  .pkc-breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px dashed var(--pkc-border);
  }
  .pkc-breakdown-row:last-child { border-bottom: none; }
  .pkc-breakdown-row .pkc-desc { color: var(--pkc-muted); min-width: 0; }
  .pkc-breakdown-row .pkc-val { font-weight: 600; white-space: nowrap; flex-shrink: 0; }

  .pkc-notice {
    font-size: 13px;
    color: var(--pkc-muted);
    margin-top: 14px;
    line-height: 1.5;
  }
  .pkc-notice.pkc-error { color: var(--pkc-danger); }

  .pkc-rates {
    font-size: 12.5px;
    color: var(--pkc-muted);
    line-height: 1.6;
  }
  .pkc-rates b { color: var(--pkc-text); }

  .pkc-footnote {
    font-size: 12px;
    color: var(--pkc-muted);
    font-style: italic;
    text-align: center;
    margin-top: 24px;
    line-height: 1.6;
  }

  /* Phones */
  @media (max-width: 480px) {
    .pkc-wrap {
      padding-top: 20px;
      padding-right: max(12px, env(safe-area-inset-right, 0px));
      padding-bottom: calc(32px + env(safe-area-inset-bottom, 0px));
      padding-left: max(12px, env(safe-area-inset-left, 0px));
    }
    .pkc-sub { margin-bottom: 20px; }
    .pkc-card { padding: 16px; border-radius: 12px; margin-bottom: 14px; }
    .pkc-lot-picker { gap: 6px; margin-bottom: 18px; }
    .pkc-wrap:not(#pkc-x) .pkc-lot-btn { padding: 10px 4px !important; font-size: 13px !important; }
    .pkc-field-label { font-size: 13px; }
    .pkc-notice { font-size: 14px; }
    .pkc-result-total .pkc-duration-label { font-size: 14px; }
    .pkc-breakdown-row { font-size: 15px; padding: 10px 0; }
    .pkc-rates { font-size: 14px; }
    .pkc-footnote { font-size: 12.5px; margin-top: 18px; }
  }

  /* Very narrow phones: stack the lot buttons so labels never squeeze */
  @media (max-width: 340px) {
    .pkc-lot-picker { grid-template-columns: 1fr; }
  }