/*
  Portland Fir — Components
  BEM-ish: block pf-block, element pf-block__el, modifier pf-block--mod.
  Each component below is documented with the markup contract it expects.
  Reuse these before adding new classes (see web/static/README.md).
*/

/* =========================================================
   App bar
   Markup: <header class="pf-app-bar">
             <a class="pf-icon-btn pf-app-bar__back" href="..." aria-label="Back">‹</a>  (sub-screens only)
             <a class="pf-app-bar__brand" href="/quotes"><img class="pf-app-bar__mark"></a>
             <h1 class="pf-app-bar__title">Fairview Garden Centre</h1>
             <span class="pf-app-bar__badge">Harrogate 2027</span>
             <nav class="pf-nav">…pf-nav__link (+ pf-nav__count)…</nav>
             <button class="pf-app-bar__rep" data-menu-toggle>
               <span class="pf-app-bar__avatar">AC</span></button>
           </header>
   The rep button opens the account menu (.pf-menu, below).
   ========================================================= */

.pf-app-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-app-bar);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: 64px;
  padding: var(--space-2) var(--space-5);
  padding-top: calc(var(--space-2) + var(--safe-top));
  padding-left: calc(var(--space-5) + var(--safe-left));
  padding-right: calc(var(--space-5) + var(--safe-right));
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  flex: none;
}

.pf-app-bar__back {
  margin-inline-start: calc(-1 * var(--space-3));
  margin-inline-end: calc(-1 * var(--space-2));
  color: var(--color-primary);
  text-decoration: none;
}

.pf-app-bar__brand {
  display: flex;
  align-items: center;
  flex: none;
  border-radius: var(--radius-sm);
}

.pf-app-bar__mark {
  width: 32px;
  height: 32px;
  flex: none;
}

.pf-app-bar__title {
  flex: 0 1 auto;
  min-width: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pf-app-bar__badge {
  margin-inline-start: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-accent-tint);
  color: var(--color-gold-text);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.pf-app-bar__rep {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--tap-min);
  height: var(--tap-min);
  margin-inline-end: calc(-1 * var(--space-1));
  padding: 0;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  cursor: pointer;
  flex: none;
}
.pf-app-bar__rep:hover .pf-app-bar__avatar,
.pf-app-bar__rep[aria-expanded="true"] .pf-app-bar__avatar {
  box-shadow: 0 0 0 3px var(--color-accent-tint), 0 0 0 4px var(--color-accent);
}

.pf-app-bar__avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  transition: box-shadow var(--duration-fast) var(--easing-standard);
}

.pf-app-bar__avatar--lg {
  width: 48px;
  height: 48px;
  font-size: var(--font-size-md);
  flex: none;
}

.pf-app-bar__rep-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .pf-app-bar__rep-name { display: none; }
}

/* Primary nav: New quote / My quotes (+ today's count) */
.pf-nav {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: none;
}

.pf-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
  padding: 0 var(--space-4);
  border-radius: var(--radius-pill);
  color: var(--color-ink-muted);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--easing-standard), color var(--duration-fast) var(--easing-standard);
}
.pf-nav__link:hover { background: var(--color-surface-2); color: var(--color-ink); }
.pf-nav__link.is-active { background: var(--color-primary-tint); color: var(--color-primary); }

.pf-nav__count {
  min-width: 24px;
  height: 24px;
  padding: 0 7px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-ink-on-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  font-variant-numeric: var(--font-variant-numeric);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Narrow (iPad portrait 768): the show badge moves into the account
   menu and nav labels stay, icons carry less weight. */
@media (max-width: 820px) {
  .pf-app-bar { gap: var(--space-3); padding-inline: var(--space-4); }
  .pf-app-bar__badge { display: none; }
  .pf-nav__link { padding: 0 var(--space-3); }
}

/* =========================================================
   Bottom action bar (sticky footer of the app shell)
   Markup: <div class="pf-action-bar"><button class="pf-btn pf-btn--ghost">...
   ========================================================= */

.pf-action-bar {
  position: sticky;
  bottom: 0;
  z-index: var(--z-action-bar);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  padding-bottom: calc(var(--space-4) + var(--safe-bottom));
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.pf-action-bar__spacer { flex: 1 1 auto; }

/* =========================================================
   Buttons
   Markup: <button class="pf-btn pf-btn--primary pf-btn--lg">Label</button>
   Variants: pf-btn--primary | --secondary | --ghost | --danger
   Sizes: default 48px, pf-btn--lg 56px (primary actions)
   Loading: add .pf-btn--loading (keeps width, shows spinner, disables clicks)
   Disabled: native [disabled]
   ========================================================= */

.pf-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
  padding: 0 var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  text-decoration: none; /* .pf-btn is also applied to <a> (e.g. nav CTAs) */
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard),
    border-color var(--duration-fast) var(--easing-standard),
    color var(--duration-fast) var(--easing-standard),
    transform var(--duration-fast) var(--easing-standard);
  user-select: none;
  white-space: nowrap;
}

.pf-btn:active { transform: translateY(1px); }

.pf-btn--lg {
  min-height: var(--tap-primary);
  padding: 0 var(--space-6);
  font-size: var(--font-size-lg);
}

.pf-btn--full { width: 100%; }

/* Compact button for dense rows (table actions, card links): tighter
   padding and type, same 48px hit target. */
.pf-btn--sm {
  min-height: var(--tap-min);
  padding: 0 var(--space-4);
  font-size: var(--font-size-sm);
}

.pf-btn--primary {
  background: var(--color-primary);
  color: var(--color-ink-on-primary);
}
.pf-btn--primary:hover { background: var(--color-primary-hover); }
.pf-btn--primary:active { background: var(--color-primary-pressed); }

.pf-btn--secondary {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-ink);
}
.pf-btn--secondary:hover { background: var(--color-surface-2); }

.pf-btn--ghost {
  background: transparent;
  color: var(--color-primary);
}
.pf-btn--ghost:hover { background: var(--color-primary-tint); }

.pf-btn--danger {
  background: var(--color-danger-700);
  /* ink-on-primary is white in light mode and near-black in dark mode,
     where danger-700 is a light coral: keeps AA contrast in both. */
  color: var(--color-ink-on-primary);
}
.pf-btn--danger:hover { filter: brightness(1.08); }

.pf-btn:disabled,
.pf-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.pf-btn--loading {
  color: transparent !important;
  pointer-events: none;
}

.pf-btn--loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-color: rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  color: inherit;
  animation: pf-spin 700ms linear infinite;
}

.pf-btn--secondary.pf-btn--loading::after,
.pf-btn--ghost.pf-btn--loading::after {
  border-color: var(--color-border);
  border-top-color: var(--color-primary);
}

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

/* Icon button — square, min 48px */
.pf-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--tap-min);
  height: var(--tap-min);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard);
}
.pf-icon-btn:hover { background: var(--color-surface-2); }
.pf-icon-btn--bordered { border-color: var(--color-border); background: var(--color-surface); }

/* =========================================================
   Text inputs
   Markup:
   <div class="pf-field">
     <label class="pf-field__label" for="x">Name</label>
     <input class="pf-input" id="x">
     <p class="pf-field__help">Helper text</p>
     <!-- or on error: -->
     <p class="pf-field__error">Required</p>
   </div>
   Add .pf-field--error to the wrapper and aria-invalid to the input.
   ========================================================= */

.pf-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.pf-field__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-ink);
}

.pf-input,
.pf-select,
.pf-textarea {
  min-height: var(--tap-min);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: border-color var(--duration-fast) var(--easing-standard),
    box-shadow var(--duration-fast) var(--easing-standard);
}

.pf-textarea { min-height: calc(var(--tap-min) * 2); resize: vertical; }

.pf-input:focus-visible,
.pf-select:focus-visible,
.pf-textarea:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-tint);
  outline: none;
}

.pf-input::placeholder { color: var(--color-ink-muted); }

.pf-field__help {
  font-size: var(--font-size-xs);
  color: var(--color-ink-muted);
}

.pf-field__error {
  font-size: var(--font-size-xs);
  color: var(--color-danger-700);
  font-weight: var(--font-weight-medium);
}

.pf-field--error .pf-input,
.pf-field--error .pf-select {
  border-color: var(--color-danger-700);
}

/* =========================================================
   Search field
   Markup:
   <div class="pf-search">
     <svg class="pf-search__icon" ...></svg>
     <input class="pf-search__input" placeholder="Search customers">
     <button class="pf-search__clear" aria-label="Clear" hidden>×</button>
   </div>
   ========================================================= */

.pf-search {
  position: relative;
  display: flex;
  align-items: center;
}

.pf-search__icon {
  position: absolute;
  left: var(--space-3);
  width: 20px;
  height: 20px;
  color: var(--color-ink-muted);
  pointer-events: none;
}

.pf-search__input {
  width: 100%;
  min-height: var(--tap-primary);
  padding-left: var(--space-8);
  padding-right: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--font-size-md);
}

.pf-search__input:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-tint);
  outline: none;
}

.pf-search__clear {
  position: absolute;
  right: var(--space-2);
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-surface-2);
  color: var(--color-ink-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  line-height: 1;
}

/* =========================================================
   Results list (customer search rows)
   Markup:
   <ul class="pf-results">
     <li class="pf-result-row">
       <div class="pf-result-row__main">
         <span class="pf-result-row__name">Fairview Garden Centre</span>
         <span class="pf-result-row__meta">C-10234 · Harrogate, UK</span>
       </div>
       <span class="pf-badge pf-badge--customer">Customer</span>
     </li>
   </ul>
   ========================================================= */

.pf-results {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
}

.pf-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--tap-primary);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard);
}
.pf-result-row:last-child,
.pf-results > li:last-child > .pf-result-row { border-bottom: none; }

/* Rows are usually <button>s (whole row tappable): reset button chrome. */
button.pf-result-row {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  color: inherit;
  text-align: left;
  font: inherit;
}
.pf-results > li { display: block; }

.pf-result-row__main { flex: 1 1 auto; }

.pf-result-row__chevron {
  flex: none;
  color: var(--color-ink-muted);
}

.pf-result-row__add {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.pf-result-row:hover,
.pf-result-row:focus-visible { background: var(--color-primary-tint); }

.pf-result-row__main {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.pf-result-row__name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pf-result-row__meta {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

/* Type badge: Lead / Customer */
.pf-badge {
  flex: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}
.pf-badge--customer { background: var(--color-primary-tint); color: var(--color-primary); }
.pf-badge--lead { background: var(--color-accent-tint); color: var(--color-gold-text); }
.pf-badge--warning { background: var(--color-warning-100); color: var(--color-warning-700); }
.pf-badge--neutral { background: var(--color-surface-2); color: var(--color-ink); }

/* =========================================================
   Segmented control (programme FOB / Delivered / Collection)
   Markup:
   <div class="pf-segmented" role="tablist">
     <button class="pf-segmented__btn is-active" role="tab" aria-selected="true">FOB</button>
     <button class="pf-segmented__btn" role="tab" aria-selected="false">Delivered</button>
     <button class="pf-segmented__btn" role="tab" aria-selected="false">Collection</button>
   </div>
   ========================================================= */

.pf-segmented {
  display: inline-flex;
  padding: 4px;
  background: var(--color-surface-2);
  border-radius: var(--radius-pill);
  gap: 2px;
}

.pf-segmented__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 var(--space-4);
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-ink-muted);
  font-weight: var(--font-weight-medium);
  text-decoration: none; /* .pf-segmented__btn is also applied to <a> (filter links) */
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--easing-standard), color var(--duration-fast) var(--easing-standard);
}

.pf-segmented__btn.is-active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  font-weight: var(--font-weight-semibold);
}

/* =========================================================
   Variant chips (LED / RGB / Standard)
   Markup:
   <div class="pf-variant-chips">
     <button class="pf-variant-chip is-selected" data-variant="LED">
       <span class="pf-variant-chip__dot pf-variant-chip__dot--led"></span>LED</button>
     <button class="pf-variant-chip" data-variant="RGB">
       <span class="pf-variant-chip__dot pf-variant-chip__dot--rgb"></span>RGB</button>
     <button class="pf-variant-chip" data-variant="STANDARD">
       <span class="pf-variant-chip__dot pf-variant-chip__dot--standard"></span>Standard</button>
   </div>
   ========================================================= */

.pf-variant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pf-variant-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--tap-min);
  padding: 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-ink);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--easing-standard), background-color var(--duration-fast) var(--easing-standard);
}

.pf-variant-chip.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-tint);
  color: var(--color-ink);
}

.pf-variant-chip__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex: none;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.pf-variant-chip__dot--led { background: #FFF6DF; }
.pf-variant-chip__dot--rgb {
  background: conic-gradient(from 90deg, #e8556c, #f0a63d, #f3e15c, #58c07a, #4aa3e0, #9464d6, #e8556c);
}
.pf-variant-chip__dot--standard { background: var(--color-ink-muted); }

/* =========================================================
   Quantity stepper (−/value/+ 48px controls)
   Markup:
   <div class="pf-qty-stepper">
     <button class="pf-qty-stepper__btn" data-step="-1" aria-label="Decrease">−</button>
     <span class="pf-qty-stepper__value">4</span>
     <button class="pf-qty-stepper__btn" data-step="1" aria-label="Increase">+</button>
   </div>
   ========================================================= */

.pf-qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-surface);
}

.pf-qty-stepper__btn {
  width: var(--tap-min);
  height: var(--tap-min);
  border: none;
  background: var(--color-surface-2);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  line-height: 1;
}
.pf-qty-stepper__btn:hover { background: var(--color-primary-tint); }

.pf-qty-stepper__value {
  min-width: 44px;
  text-align: center;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-md);
}

/* =========================================================
   Line card (quote line)
   Markup:
   <article class="pf-line-card">
     <div class="pf-line-card__main">
       <p class="pf-line-card__name">Nordmann Fir 180–200cm</p>
       <p class="pf-line-card__code">NF-180 · <span class="pf-variant-chip ...">LED</span></p>
     </div>
     <div class="pf-line-card__price">£64.00</div>
     <div class="pf-line-card__qty pf-qty-stepper">...</div>
     <div class="pf-line-card__total">£256.00</div>
     <button class="pf-icon-btn pf-line-card__remove" aria-label="Remove">×</button>
   </article>
   ========================================================= */

.pf-line-card {
  display: grid;
  grid-template-columns: 1fr auto auto auto auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.pf-line-card__main { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.pf-line-card__name { font-weight: var(--font-weight-semibold); }
.pf-line-card__code {
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pf-line-card__price { color: var(--color-ink-muted); font-size: var(--font-size-sm); }
.pf-line-card__total { font-weight: var(--font-weight-semibold); min-width: 80px; text-align: right; }
.pf-line-card__remove { color: var(--color-danger-700); }

@media (max-width: 819px) {
  .pf-line-card {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "main remove"
      "price price"
      "qty total";
  }
  .pf-line-card__main { grid-area: main; }
  .pf-line-card__remove { grid-area: remove; }
  .pf-line-card__price { grid-area: price; }
  .pf-line-card__qty { grid-area: qty; }
  .pf-line-card__total { grid-area: total; }
}

/* =========================================================
   Totals panel
   Markup:
   <div class="pf-totals">
     <div class="pf-totals__row"><span>Subtotal</span><span>£1,024.00</span></div>
     <div class="pf-totals__row"><span>Freight</span><span>£150.00</span></div>
     <div class="pf-totals__row"><span>VAT (20%)</span><span>£234.80</span></div>
     <div class="pf-totals__row pf-totals__row--total"><span>Total</span>
       <span class="pf-totals__value">£1,408.80</span></div>
   </div>
   ========================================================= */

.pf-totals {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pf-totals__row {
  display: flex;
  justify-content: space-between;
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
}

.pf-totals__row--total {
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  color: var(--color-ink);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.pf-totals__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

/* =========================================================
   Scan bar
   Markup:
   <div class="pf-scan-bar">
     <span class="pf-scan-bar__dot" aria-hidden="true"></span>
     <span class="pf-scan-bar__status">Ready to scan</span>
     <input class="pf-scan-bar__input" data-scan autocomplete="off" inputmode="none">
     <button class="pf-icon-btn pf-scan-bar__camera" aria-label="Scan with camera">📷</button>
   </div>
   States: add .pf-scan-bar--busy while a scan is being processed,
   .pf-scan-bar--error on a failed lookup.
   ========================================================= */

.pf-scan-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-primary-tint);
  border: 1px solid var(--color-border);
}

.pf-scan-bar__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  flex: none;
  animation: pf-pulse 1.6s var(--easing-standard) infinite;
}

@keyframes pf-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(31, 77, 58, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(31, 77, 58, 0); }
}

.pf-scan-bar__status {
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  flex: 1 1 auto;
}

.pf-scan-bar--error .pf-scan-bar__dot { background: var(--color-danger-700); animation: none; }
.pf-scan-bar--error .pf-scan-bar__status { color: var(--color-danger-700); }
.pf-scan-bar--busy .pf-scan-bar__dot { animation-duration: 0.7s; }

/* Visually-hidden but focusable input that actually receives scanner keystrokes */
.pf-scan-bar__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* =========================================================
   Status pills (Draft / Sent / Ordered / Failed)
   Markup: <span class="pf-status-pill pf-status-pill--draft">Draft</span>
   ========================================================= */

.pf-status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.pf-status-pill--draft { background: var(--color-surface-2); color: var(--color-ink-muted); }
.pf-status-pill--sent { background: var(--color-info-100); color: var(--color-info-700); }
.pf-status-pill--ordered { background: var(--color-success-100); color: var(--color-success-700); }
.pf-status-pill--failed { background: var(--color-danger-100); color: var(--color-danger-700); }

/* =========================================================
   Toast / banner
   Markup:
   <div class="pf-banner pf-banner--error" role="alert">
     <p class="pf-banner__message">Could not reach SAP B1.</p>
     <button class="pf-btn pf-btn--secondary pf-banner__retry">Retry</button>
   </div>
   Toast container for transient toasts: <div class="pf-toast-stack" id="toasts">
   ========================================================= */

.pf-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
}

.pf-banner__message { flex: 1 1 auto; font-weight: var(--font-weight-medium); }

.pf-banner--info { background: var(--color-info-100); color: var(--color-info-700); }
.pf-banner--success { background: var(--color-success-100); color: var(--color-success-700); }
.pf-banner--error { background: var(--color-danger-100); color: var(--color-danger-700); }

.pf-toast-stack {
  position: fixed;
  right: var(--space-5);
  bottom: calc(var(--space-5) + var(--safe-bottom));
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: min(360px, calc(100vw - var(--space-6)));
}

.pf-toast-stack .pf-banner {
  box-shadow: var(--shadow-lg);
  animation: pf-toast-in var(--duration-base) var(--easing-standard);
}

@keyframes pf-toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   Modal / bottom sheet
   Markup:
   <div class="pf-modal-scrim">
     <div class="pf-modal" role="dialog" aria-modal="true">
       <div class="pf-modal__header"><h2>Title</h2>
         <button class="pf-icon-btn" aria-label="Close">×</button></div>
       <div class="pf-modal__body">...</div>
       <div class="pf-modal__footer">...</div>
     </div>
   </div>
   Portrait: sheet slides from bottom. Landscape (>=820px): centered dialog.
   ========================================================= */

.pf-modal-scrim {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-scrim);
  background: rgba(15, 21, 18, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.pf-modal {
  position: relative;
  z-index: var(--z-modal);
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-surface);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  padding-bottom: calc(var(--space-5) + var(--safe-bottom));
  animation: pf-sheet-in var(--duration-base) var(--easing-standard);
}

@keyframes pf-sheet-in {
  from { transform: translateY(24px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.pf-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.pf-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

@media (min-width: 820px) and (orientation: landscape) {
  .pf-modal-scrim { align-items: center; }
  .pf-modal {
    width: min(560px, 90vw);
    max-height: 80vh;
    border-radius: var(--radius-md);
    animation: pf-dialog-in var(--duration-base) var(--easing-standard);
  }
  @keyframes pf-dialog-in {
    from { transform: scale(0.97); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
  }
}

/* =========================================================
   Signature pad
   Markup:
   <div class="pf-signature-pad">
     <canvas class="pf-signature-pad__canvas" data-signature-canvas></canvas>
     <div class="pf-signature-pad__baseline"></div>
     <span class="pf-signature-pad__hint">Sign here</span>
     <button class="pf-btn pf-btn--ghost pf-signature-pad__clear" data-signature-clear>Clear</button>
     <input type="hidden" name="signature" data-signature-output>
   </div>
   ========================================================= */

.pf-signature-pad {
  position: relative;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}

.pf-signature-pad__canvas {
  display: block;
  width: 100%;
  height: 220px;
  touch-action: none;
  /* The pad always draws ink in a fixed dark colour (see signature.js)
     regardless of theme, so the drawing surface itself is kept a fixed
     light colour here rather than following --color-surface (which goes
     dark in dark mode and would make the stroke invisible). */
  background: #FFFFFF;
}

.pf-signature-pad__baseline {
  position: absolute;
  left: var(--space-5);
  right: var(--space-5);
  bottom: 56px;
  border-bottom: 1px solid var(--color-border);
  pointer-events: none;
}

.pf-signature-pad__hint {
  position: absolute;
  left: var(--space-5);
  bottom: 60px;
  color: var(--color-ink-muted);
  font-size: var(--font-size-sm);
  pointer-events: none;
}

.pf-signature-pad__clear {
  position: absolute;
  right: var(--space-3);
  top: var(--space-3);
}

/* =========================================================
   Send progress stepper
   Markup:
   <ol class="pf-send-steps">
     <li class="pf-send-step is-done"><span class="pf-send-step__dot"></span>Quotation</li>
     <li class="pf-send-step is-active"><span class="pf-send-step__dot"></span>Signature</li>
     <li class="pf-send-step"><span class="pf-send-step__dot"></span>PDF</li>
     <li class="pf-send-step is-error"><span class="pf-send-step__dot"></span>Email</li>
   </ol>
   ========================================================= */

.pf-send-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pf-send-step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-ink-muted);
  font-weight: var(--font-weight-medium);
}

.pf-send-step__dot {
  width: 24px;
  height: 24px;
  flex: none;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  position: relative;
}

.pf-send-step.is-active .pf-send-step__dot {
  border-color: var(--color-primary);
  animation: pf-pulse 1.2s var(--easing-standard) infinite;
}
.pf-send-step.is-active { color: var(--color-primary); }

.pf-send-step.is-done .pf-send-step__dot {
  border-color: var(--color-success-700);
  background: var(--color-success-700);
}
.pf-send-step.is-done .pf-send-step__dot::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--color-ink-on-primary);
  border-bottom: 2px solid var(--color-ink-on-primary);
  transform: rotate(-45deg) translateY(-1px);
}
.pf-send-step.is-done { color: var(--color-ink); }

.pf-send-step.is-error .pf-send-step__dot {
  border-color: var(--color-danger-700);
  background: var(--color-danger-100);
}
.pf-send-step.is-error { color: var(--color-danger-700); }

/* =========================================================
   Empty states
   Markup:
   <div class="pf-empty">
     <div class="pf-empty__icon">...</div>
     <p class="pf-empty__title">No quotes yet today</p>
     <p class="pf-empty__body">Scan an item or search a customer to start.</p>
   </div>
   ========================================================= */

.pf-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-9) var(--space-5);
  color: var(--color-ink-muted);
}

.pf-empty__icon {
  width: 48px;
  height: 48px;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-2);
}

.pf-empty__title { color: var(--color-ink); font-weight: var(--font-weight-semibold); font-size: var(--font-size-lg); }

/* =========================================================
   Skeleton loaders
   Markup: <div class="pf-skeleton pf-skeleton--text"></div>
   ========================================================= */

.pf-skeleton {
  background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-border) 37%, var(--color-surface-2) 63%);
  background-size: 400% 100%;
  animation: pf-skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}

.pf-skeleton--text { height: 16px; width: 100%; }
.pf-skeleton--row { height: var(--tap-primary); width: 100%; border-radius: var(--radius-md); }

@keyframes pf-skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* =========================================================
   Table (admin)
   Markup: <table class="pf-table"><thead>...<tbody>...
   ========================================================= */

.pf-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.pf-table th,
.pf-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.pf-table th {
  background: var(--color-surface-2);
  color: var(--color-ink-muted);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: var(--font-size-xs);
}

.pf-table tbody tr:last-child td { border-bottom: none; }
.pf-table tbody tr:hover { background: var(--color-primary-tint); }
.pf-table tbody tr[data-href] { cursor: pointer; }

/* =========================================================
   HTMX indicator states
   Add .htmx-indicator elements next to a trigger; htmx toggles opacity via
   its own [class~="htmx-request"] mechanism. We style both.
   ========================================================= */

.htmx-indicator {
  opacity: 0;
  transition: opacity var(--duration-fast) var(--easing-standard);
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  opacity: 1;
}

.htmx-request .pf-btn:not(.htmx-indicator) {
  opacity: 0.85;
}

.pf-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: pf-spin 700ms linear infinite;
}

/* =========================================================
   Step indicator (quote flow: Customer · Items · Review · Send)
   Markup:
   <nav class="pf-stepbar" aria-label="Quote progress">
     <ol class="pf-steps">
       <li class="pf-steps__item is-done"><a class="pf-steps__link" href="…">
         <span class="pf-steps__dot">✓</span><span class="pf-steps__label">Customer</span></a></li>
       <li class="pf-steps__item is-current" aria-current="step"><span class="pf-steps__link">…</span></li>
       <li class="pf-steps__item is-upcoming">…</li>
     </ol>
   </nav>
   ========================================================= */

.pf-stepbar {
  flex: none;
  display: flex;
  justify-content: center;
  padding: var(--space-1) var(--space-5);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.pf-steps {
  display: flex;
  align-items: center;
  gap: 0;
}

.pf-steps__item {
  display: flex;
  align-items: center;
  color: var(--color-ink-muted);
}

/* connector line between steps */
.pf-steps__item + .pf-steps__item::before {
  content: "";
  width: 40px;
  height: 2px;
  margin-inline: var(--space-1);
  border-radius: 1px;
  background: var(--color-border);
}
.pf-steps__item.is-done + .pf-steps__item::before,
.pf-steps__item.is-done + .pf-steps__item.is-current::before { background: var(--color-primary); }

.pf-steps__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  color: inherit;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}
a.pf-steps__link:hover { background: var(--color-primary-tint); }

.pf-steps__dot {
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pf-steps__item.is-done { color: var(--color-ink); }
.pf-steps__item.is-done .pf-steps__dot {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-ink-on-primary);
}
.pf-steps__item.is-current { color: var(--color-primary); }
.pf-steps__item.is-current .pf-steps__label { font-weight: var(--font-weight-bold); }
.pf-steps__item.is-current .pf-steps__dot {
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 4px var(--color-surface), inset 0 0 0 11px var(--color-primary);
}

@media (max-width: 820px) {
  .pf-steps__item + .pf-steps__item::before { width: 20px; }
  .pf-steps__link { padding: 0 var(--space-2); }
}

/* =========================================================
   Account menu (opened from the app bar avatar)
   Markup:
   <div class="pf-menu-scrim" hidden data-menu>
     <div class="pf-menu" role="dialog">
       <div class="pf-menu__head">avatar + pf-menu__name / pf-menu__meta</div>
       <div class="pf-menu__items"><button class="pf-menu__item">…</button></div>
     </div>
   </div>
   ========================================================= */

.pf-menu-scrim {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-scrim);
  background: rgba(15, 21, 18, 0.18);
}

.pf-menu {
  position: absolute;
  top: calc(64px + var(--safe-top) - 4px);
  right: calc(var(--space-4) + var(--safe-right));
  width: min(360px, calc(100vw - 32px));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: pf-menu-in var(--duration-base) var(--easing-standard);
}

/* Focus is moved to the dialog itself on open (for screen readers); it
   isn't an interactive control, so no ring. */
.pf-menu:focus, .pf-menu:focus-visible { outline: none; }

@keyframes pf-menu-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.pf-menu__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}

.pf-menu__who { min-width: 0; }
.pf-menu__name { font-weight: var(--font-weight-semibold); font-size: var(--font-size-lg); }
.pf-menu__meta { font-size: var(--font-size-sm); color: var(--color-ink-muted); }

.pf-menu__items { display: flex; flex-direction: column; padding: var(--space-2); }
.pf-menu__items form { display: contents; }

.pf-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  min-height: var(--tap-primary);
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-ink);
  font: inherit;
  font-weight: var(--font-weight-medium);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.pf-menu__item:hover { background: var(--color-surface-2); }
.pf-menu__item[disabled] { opacity: 0.7; cursor: progress; }
.pf-menu__icon { flex: none; color: var(--color-primary); }
.pf-menu__text { display: flex; flex-direction: column; flex: 1 1 auto; }
.pf-menu__hint { font-size: var(--font-size-xs); color: var(--color-ink-muted); font-weight: var(--font-weight-regular); }
.pf-menu__item--danger,
.pf-menu__item--danger .pf-menu__icon { color: var(--color-danger-700); }
.pf-menu__items form::before { content: none; }
.pf-menu__item--danger { margin-top: var(--space-1); border-top: 1px solid var(--color-border); border-radius: 0 0 var(--radius-sm) var(--radius-sm); }

/* =========================================================
   Cards, page heads, section titles
   ========================================================= */

.pf-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
}
.pf-card--flush { padding: 0; overflow: hidden; }
.pf-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 56px;
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.pf-page { padding-block: var(--space-3) var(--space-8); }

.pf-page__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.pf-section-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.pf-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding-inline: var(--space-1);
}

.pf-search--hero .pf-search__input {
  min-height: 64px;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.pf-search--hero .pf-search__icon { left: var(--space-4); width: 22px; height: 22px; }
.pf-search--hero .pf-search__input { padding-left: calc(var(--space-8) + 4px); }

/* Search inputs are type=search: hide WebKit's own cancel button (the
   design has none) and keep our font. */
.pf-search__input::-webkit-search-cancel-button { -webkit-appearance: none; }
.pf-search__input { -webkit-appearance: none; appearance: none; color: var(--color-ink); }

.pf-customer-results:empty { display: none; }

.pf-empty--panel {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-9) var(--space-6);
}
.pf-empty--panel .pf-btn { margin-top: var(--space-3); }
.pf-empty--panel p:not(.pf-empty__title) { max-width: 420px; }

.pf-empty--inline {
  align-items: flex-start;
  text-align: left;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  gap: var(--space-1);
}
.pf-empty--inline .pf-empty__title { font-size: var(--font-size-md); }
.pf-empty--inline .pf-btn { margin-top: var(--space-2); }

/* =========================================================
   Quote builder layout
   Markup:
   <div class="pf-builder">
     <section class="pf-builder__main">scan bar, tools, results, lines-head,
       <div class="pf-builder__lines">…line cards…</div></section>
     <aside class="pf-summary" data-summary>…</aside>
   </div>
   Landscape: two panes; lines scroll inside the left pane, the summary
   is a sticky right column. Portrait: the summary becomes a sticky
   bottom sheet (collapsed: total + CTA; tap to expand).
   ========================================================= */

.pf-builder {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 380px);
  gap: var(--space-5);
}

.pf-builder__main {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 0;
  min-width: 0;
}

.pf-builder__tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.pf-builder__search { flex: 1 1 260px; max-width: 380px; }

.pf-builder__results { position: relative; z-index: var(--z-dropdown); }
.pf-builder__results:empty { display: none; }

.pf-results--popover {
  position: absolute;
  top: calc(-1 * var(--space-3));
  right: 0;
  width: min(520px, 100%);
  max-height: min(420px, 55vh);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.pf-results-empty {
  position: absolute;
  top: calc(-1 * var(--space-3));
  right: 0;
  width: min(520px, 100%);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--color-ink-muted);
}

.pf-builder__lines-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-inline: var(--space-1);
  margin-bottom: calc(-1 * var(--space-2));
}

.pf-builder__lines {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  /* room so the last card's shadow/focus ring isn't clipped */
  padding: 2px 2px var(--space-5);
  margin: -2px;
}

.pf-builder__lines .pf-customer-results:empty { display: none; }

.pf-empty--panel { min-height: 100%; justify-content: center; }

.pf-scan-bar__form { display: contents; }
.pf-scan-bar .pf-icon-btn--bordered { background: var(--color-surface); }

/* Summary (right pane / portrait bottom sheet) */
.pf-summary {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}

.pf-summary__bar { display: none; }

.pf-summary__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.pf-saved {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}
.pf-saved svg { color: var(--color-success-700); }

.pf-customer-card { display: flex; flex-direction: column; gap: var(--space-1); position: relative; }
.pf-customer-card__head { display: flex; align-items: center; gap: var(--space-2); min-width: 0; flex-wrap: wrap; }
.pf-customer-card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-2); }
.pf-customer-card__name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  min-width: 0;
}
.pf-customer-card__meta { font-size: var(--font-size-sm); color: var(--color-ink-muted); display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }
.pf-customer-card__email {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  min-width: 0;
  overflow-wrap: anywhere;
}
.pf-customer-card__email svg { flex: none; color: var(--color-ink-muted); }
.pf-customer-card__change { flex: none; margin: calc(-1 * var(--space-2)) calc(-1 * var(--space-3)) 0 0; }

.pf-totals__note { font-size: var(--font-size-xs); color: var(--color-success-700); text-align: right; }

@media (orientation: portrait), (max-width: 900px) {
  .pf-builder { grid-template-columns: minmax(0, 1fr); }
  /* leave room above the collapsed bottom sheet */
  .pf-builder__lines { padding-bottom: 120px; }

  .pf-summary {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-action-bar);
    max-height: 80vh;
    padding: var(--space-3) calc(var(--space-5) + var(--safe-right)) calc(var(--space-3) + var(--safe-bottom)) calc(var(--space-5) + var(--safe-left));
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    box-shadow: 0 -8px 28px rgba(28, 31, 29, 0.14);
  }

  .pf-summary__bar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }
  .pf-summary__bar > .pf-btn { width: auto; flex: none; min-width: 240px; }

  .pf-summary__toggle {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: var(--tap-primary);
    padding: 0 var(--space-2);
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-ink);
    text-align: left;
    cursor: pointer;
  }
  .pf-summary__toggle:hover { background: var(--color-surface-2); }
  .pf-summary__toggle-text { display: flex; flex-direction: column; }
  .pf-summary__toggle-label { font-size: var(--font-size-xs); color: var(--color-ink-muted); font-weight: var(--font-weight-medium); }
  .pf-summary__toggle-total { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); color: var(--color-primary); line-height: 1.1; }
  .pf-summary__chevron { color: var(--color-ink-muted); transition: transform var(--duration-base) var(--easing-standard); }
  .pf-summary.is-expanded .pf-summary__chevron { transform: rotate(180deg); }

  .pf-summary__body { display: none; }
  .pf-summary.is-expanded .pf-summary__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: var(--space-4);
    padding-top: var(--space-4);
    margin-top: var(--space-3);
    border-top: 1px solid var(--color-border);
    overflow-y: auto;
  }
  .pf-summary__cta, .pf-summary .pf-saved { display: none; }

  /* iPad Safari keyboard finding: hide the fixed bottom sheet entirely
     while a text input/textarea has focus, so the on-screen keyboard
     (which shrinks the visual viewport, not the layout viewport) can't
     leave it floating over/under the keyboard covering the field being
     typed into. Restored on blur (see app.js). */
  .pf-summary.pf-summary--keyboard-collapsed { display: none; }
}

@media (max-width: 820px) {
  .pf-summary.is-expanded .pf-summary__body { grid-template-columns: 1fr; }
}

/* Line card refinements: variant chips inside the card */
.pf-line-card { box-shadow: var(--shadow-sm); }
.pf-line-card__main { gap: 6px; }
.pf-line-card__name { line-height: var(--line-height-tight); }
.pf-line-card__code { flex-wrap: wrap; }
.pf-line-card__price { text-align: right; min-width: 72px; }
.pf-line-card__total { min-width: 96px; font-size: var(--font-size-lg); }
.pf-line-card__qty--static { font-weight: var(--font-weight-semibold); min-width: 64px; text-align: center; }
.pf-line-card__remove { color: var(--color-ink-muted); }
.pf-line-card__remove:hover { color: var(--color-danger-700); background: var(--color-danger-100); }
.pf-qty-stepper__btn:disabled { color: var(--color-ink-muted); opacity: 0.45; cursor: not-allowed; }
.pf-qty-stepper__btn:disabled:hover { background: var(--color-surface-2); }

.pf-variant-chips--sm { gap: var(--space-2); margin-top: 2px; }
.pf-variant-chips--sm .pf-variant-chip {
  position: relative;
  min-height: 40px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-sm);
}
/* 48px hit area around the 40px visual chip */
.pf-variant-chips--sm .pf-variant-chip::after {
  content: "";
  position: absolute;
  inset: -4px -2px;
}
.pf-variant-chip:not(.is-selected):hover { border-color: var(--color-primary); background: var(--color-primary-tint); }
.pf-variant-chip.is-selected { cursor: default; font-weight: var(--font-weight-semibold); }
.pf-variant-chip[disabled] { opacity: 0.6; }

/* Static (non-interactive) variant label */
.pf-variant-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-ink);
  white-space: nowrap;
  flex: none;
}
.pf-variant-tag .pf-variant-chip__dot { width: 10px; height: 10px; }

@media (max-width: 819px) {
  .pf-line-card { grid-template-columns: 1fr auto auto; grid-template-areas: "main main remove" "price qty total"; row-gap: var(--space-3); }
  .pf-line-card__price { text-align: left; }
}

/* =========================================================
   Review screen
   ========================================================= */

.pf-review {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 460px);
  gap: var(--space-5);
  align-items: start;
  max-width: 1320px;
  margin-inline: auto;
}
.pf-review__sign { position: sticky; top: 0; }

@media (orientation: portrait), (max-width: 900px) {
  .pf-review { grid-template-columns: minmax(0, 1fr); }
  .pf-review__sign { position: static; }
}

.pf-review-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.pf-review-head__main { min-width: 0; display: flex; flex-direction: column; gap: var(--space-1); }
.pf-review-head__name { font-size: var(--font-size-xl); font-weight: var(--font-weight-semibold); line-height: var(--line-height-tight); }
.pf-review-head__facts { display: flex; gap: var(--space-6); margin: 0; }
.pf-review-head__facts dt { font-size: var(--font-size-xs); color: var(--color-ink-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: var(--font-weight-semibold); }
.pf-review-head__facts dd { margin: 0; font-weight: var(--font-weight-semibold); font-size: var(--font-size-lg); }

.pf-review-lines { display: flex; flex-direction: column; }
.pf-review-line {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto 104px;
  align-items: center;
  gap: var(--space-3);
  min-height: 64px;
  padding: var(--space-2) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.pf-review-line:last-child { border-bottom: none; }
.pf-review-line__qty { font-weight: var(--font-weight-bold); color: var(--color-primary); }
.pf-review-line__main { display: flex; flex-direction: column; min-width: 0; }
.pf-review-line__name { font-weight: var(--font-weight-semibold); }
.pf-review-line__meta { font-size: var(--font-size-sm); color: var(--color-ink-muted); }
.pf-review-line__total { text-align: right; font-weight: var(--font-weight-semibold); }

.pf-review__reason { min-height: 1.45em; font-size: var(--font-size-sm); color: var(--color-danger-700); text-align: center; }
.pf-review__reason:empty { display: none; }

/* Inline-edit field: shows the value with an Edit button; editing (or no
   value yet) shows the input instead. */
[data-inline-edit] .pf-inline-edit__input { display: none; }
[data-inline-edit][data-editing] .pf-inline-edit__input { display: block; }
[data-inline-edit][data-editing] .pf-inline-edit__view { display: none; }
.pf-inline-edit__view {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--tap-min);
  padding: 0 var(--space-1) 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
}
.pf-inline-edit__value { font-weight: var(--font-weight-medium); overflow-wrap: anywhere; }

.pf-signature-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.pf-signature-state {
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  background: var(--color-warning-100);
  color: var(--color-warning-700);
}
.pf-signature-pad.is-signed { border-style: solid; border-color: var(--color-success-700); }
.pf-signature-pad:not(.is-signed) { border-color: var(--color-warning-700); }
.pf-signature-pad.is-signed .pf-signature-pad__hint { display: none; }
.pf-signature-state.is-signed { background: var(--color-success-100); color: var(--color-success-700); }
.pf-signature-pad__stored {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  background: #FFFFFF;
}
/* The pad surface is always white (see .pf-signature-pad__canvas), so its
   hint, baseline and Clear button keep light-surface colours in dark mode. */
.pf-signature-pad__hint { color: #5E6660; }
.pf-signature-pad__baseline { border-bottom-color: #D5CEC1; }
.pf-signature-pad__clear { color: #1F4D3A; background: rgba(255, 255, 255, 0.85); }
.pf-signature-pad__clear:hover { background: #E6EFEA; }

/* =========================================================
   Send screen
   ========================================================= */

.pf-center {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-6);
}

.pf-send-card {
  width: min(600px, 100%);
  padding: var(--space-7);
  gap: var(--space-5);
  box-shadow: var(--shadow-lg);
}

.pf-success { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-3); }
.pf-success__icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-success-100);
  color: var(--color-success-700);
  box-shadow: 0 0 0 10px color-mix(in srgb, var(--color-success-100) 45%, transparent);
  margin-bottom: var(--space-2);
  animation: pf-pop 320ms var(--easing-standard);
}
@keyframes pf-pop {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.pf-success__sub { font-size: var(--font-size-lg); color: var(--color-ink-muted); }

.pf-send-steps--row {
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-5);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}
.pf-send-steps--row .pf-send-step { gap: var(--space-2); }
.pf-send-steps--row .pf-send-step__dot { width: 20px; height: 20px; }

.pf-banner__icon { flex: none; }
.pf-banner--stacked { align-items: flex-start; padding: var(--space-4) var(--space-5); }
.pf-banner__title { font-weight: var(--font-weight-bold); font-size: var(--font-size-lg); }
.pf-banner--stacked .pf-banner__message { font-weight: var(--font-weight-regular); color: var(--color-ink); }

.pf-details summary { cursor: pointer; font-size: var(--font-size-sm); font-weight: var(--font-weight-medium); min-height: 32px; display: flex; align-items: center; }
.pf-details p { font-size: var(--font-size-xs); color: var(--color-ink-muted); overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.pf-actions { display: flex; justify-content: flex-end; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.pf-actions--center { justify-content: center; }
.pf-actions--grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.pf-actions--grid > :first-child { grid-column: 1 / -1; }
.pf-actions--grid > :last-child:nth-child(2) { grid-column: 1 / -1; }

.pf-send-step.is-error .pf-send-step__dot::after {
  content: "!";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  color: var(--color-danger-700);
}

/* =========================================================
   Quotes list: summary strip + table polish
   ========================================================= */

.pf-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin: 0;
}
.pf-stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
}
.pf-stat dt { font-size: var(--font-size-xs); font-weight: var(--font-weight-semibold); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-ink-muted); }
.pf-stat dd { margin: var(--space-1) 0 0; font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); line-height: 1.15; }
.pf-stat--accent dd { color: var(--color-success-700); }

.pf-table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.pf-table-wrap .pf-table { border: none; border-radius: 0; }
.pf-table td { vertical-align: middle; }
.pf-table--quotes td { padding-block: var(--space-2); height: 68px; font-size: var(--font-size-md); }
.numeric-col { text-align: right !important; }
.pf-col-actions { text-align: right !important; width: 1%; white-space: nowrap; }
.pf-col-total { font-weight: var(--font-weight-semibold); }
.pf-row-actions { display: flex; justify-content: flex-end; gap: var(--space-2); }
.pf-row-actions form { display: contents; }
.pf-row-link { color: var(--color-ink); font-weight: var(--font-weight-semibold); text-decoration: none; }
.pf-row-link--muted { color: var(--color-ink-muted); font-weight: var(--font-weight-medium); }
.pf-cell-main { display: block; font-weight: var(--font-weight-medium); }
.pf-cell-meta { display: block; font-size: var(--font-size-xs); color: var(--color-ink-muted); }
.pf-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: var(--font-size-xs); font-weight: var(--font-weight-bold); padding: 2px 6px; border-radius: 6px; background: var(--color-surface-2); }
.pf-cell-path { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: var(--font-size-xs); overflow-wrap: anywhere; }
.pf-cell-error {
  font-size: var(--font-size-xs);
  color: var(--color-ink-muted);
  max-width: 420px;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pf-status-pill--sending { background: var(--color-warning-100); color: var(--color-warning-700); }

.pf-col-quote { white-space: nowrap; }
.pf-col-quote .pf-status-pill { display: none; margin-top: var(--space-1); }

@media (max-width: 1100px) {
  .pf-col-lines { display: none; }
}
@media (max-width: 900px) {
  .pf-col-time, .pf-col-status { display: none; }
  .pf-col-quote .pf-status-pill { display: inline-flex; }
  .pf-col-quote .pf-row-link { display: block; }
  .pf-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pf-table--quotes th, .pf-table--quotes td { padding-inline: var(--space-3); }
}

/* =========================================================
   Login
   ========================================================= */

.pf-login {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background:
    radial-gradient(1000px 520px at 50% -10%, var(--color-primary-tint), transparent 70%),
    var(--color-bg);
}

.pf-login__card {
  width: min(420px, 100%);
  padding: var(--space-8) var(--space-7) var(--space-7);
  gap: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}

.pf-login__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.pf-login__brand .pf-app-bar__badge { margin: 0; }
.pf-login__mark { width: 64px; height: 64px; border-radius: 16px; box-shadow: var(--shadow-md); }
.pf-login__foot { font-size: var(--font-size-sm); color: var(--color-ink-muted); text-align: center; }

/* =========================================================
   Forms / sheets misc
   ========================================================= */

.pf-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 600px) { .pf-form-grid { grid-template-columns: 1fr; } }
.pf-field__req { color: var(--color-danger-700); }
.pf-select { -webkit-appearance: none; appearance: none; padding-right: var(--space-7);
  background-image: linear-gradient(45deg, transparent 50%, var(--color-ink-muted) 50%), linear-gradient(135deg, var(--color-ink-muted) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
  background-size: 6px 6px;
  background-repeat: no-repeat;
}
.pf-modal__header { align-items: flex-start; gap: var(--space-3); }
.pf-modal .pf-input, .pf-modal .pf-select { width: 100%; }

.pf-convert__label { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }
.pf-checklist { display: flex; flex-direction: column; gap: var(--space-2); }
.pf-checklist li { position: relative; padding-left: var(--space-6); color: var(--color-ink-muted); }
.pf-checklist li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.35em;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
}

.pf-input { width: 100%; }