/* BLW Parts Fiche — dark by default, light on toggle. */

/* Fonts are the platform's own — no webfont download, no third-party request.
   The site previously pulled Inter + IBM Plex Mono from fonts.googleapis.com, which
   cost a render-blocking round trip to a third party on every single page load and
   sent every visitor's IP to Google before any of our own content painted. The
   system stacks below land on Segoe UI / SF Pro / Roboto, which are close enough
   to Inter that the layout is unchanged, and the monospace stack keeps part codes
   and callout numbers aligned in tabular columns. */
:root {
    --blw-font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --blw-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

:root,
:root[data-theme="dark"] {
    --blw-green:        #3ee500;
    --blw-green-dim:    #2ecc00;
    --blw-green-dark:   #1f8b00;
    --blw-green-bg:     #1a2415;
    --blw-bg:           #0f1411;
    --blw-surface:      #161c18;
    --blw-surface-2:    #1d231f;
    --blw-ink:          #e6efe2;
    --blw-muted:        #8d9b85;
    --blw-line:         #2a3328;
    --blw-row-alt:      #131814;
    --blw-warn:         #ff6b3b;
    --blw-shadow:       0 1px 0 rgba(0,0,0,.4);
}

:root[data-theme="light"] {
    --blw-green:        #1f8b00;
    --blw-green-dim:    #2ecc00;
    --blw-green-dark:   #156800;
    --blw-green-bg:     #f1faea;
    --blw-bg:           #ffffff;
    --blw-surface:      #ffffff;
    --blw-surface-2:    #fafaf7;
    --blw-ink:          #1c1c1c;
    --blw-muted:        #6a6a6a;
    --blw-line:         #d8e3d2;
    --blw-row-alt:      #f7fbf3;
    --blw-warn:         #b73a00;
    --blw-shadow:       0 1px 0 rgba(0,0,0,.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--blw-font-sans);
    color: var(--blw-ink);
    background: var(--blw-bg);
    font-size: 15px;
    line-height: 1.45;
    transition: background-color .15s ease, color .15s ease;
}
a { color: var(--blw-green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- header --- */
.blw-header {
    border-bottom: 2px solid var(--blw-green-dark);
    background: var(--blw-surface);
    position: sticky; top: 0; z-index: 50;
    box-shadow: var(--blw-shadow);
}
.blw-header-inner {
    max-width: 1280px; margin: 0 auto;
    padding: 8px 16px;
    display: flex; align-items: center; gap: 10px 14px; flex-wrap: wrap;
}
.blw-brand { display: flex; align-items: center; flex-shrink: 0; }
.blw-logo {
    display: block; height: 48px; width: auto;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,.5));
}
:root[data-theme="light"] .blw-logo { filter: drop-shadow(0 1px 2px rgba(0,0,0,.15)); }

/* Hamburger — hidden on desktop, revealed when the nav collapses. */
.blw-menu-toggle {
    display: none; align-items: center; justify-content: center;
    width: 38px; height: 38px; flex-shrink: 0;
    background: transparent; border: 1px solid var(--blw-line);
    color: var(--blw-ink); border-radius: 8px; cursor: pointer;
    font-size: 18px; line-height: 1;
}
.blw-menu-toggle:hover { border-color: var(--blw-green); color: var(--blw-green); }
.blw-menu-toggle .close-icon { display: none; }
.blw-menu-toggle[aria-expanded="true"] .open-icon  { display: none; }
.blw-menu-toggle[aria-expanded="true"] .close-icon { display: inline; }

.blw-nav { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.blw-nav a, .blw-nav-list-link {
    font-weight: 600; font-size: 14px; color: var(--blw-ink);
    padding: 6px 10px; border-radius: 4px; text-decoration: none;
}
.blw-nav-list-link { flex-shrink: 0; }
.blw-nav a:hover, .blw-nav-list-link:hover { background: var(--blw-green-bg); color: var(--blw-green); text-decoration: none; }

/* Collapse the category nav and stack the search bar on tablets / phones. */
@media (max-width: 820px) {
    .blw-menu-toggle  { display: inline-flex; order: 4; }
    .blw-brand        { order: 1; margin-right: auto; }
    .blw-nav-list-link { order: 2; }
    .blw-theme        { order: 3; }
    .blw-search       { order: 5; flex-basis: 100%; max-width: none; }
    .blw-logo         { height: 40px; }
    .blw-nav {
        order: 6; flex-basis: 100%;
        display: none; flex-direction: column; align-items: stretch;
        gap: 2px; padding-top: 8px; margin-top: 4px;
        border-top: 1px solid var(--blw-line);
    }
    .blw-nav.is-open  { display: flex; }
    .blw-nav a        { padding: 11px 12px; font-size: 15px; }
    .blw-typeahead    { min-width: 0; }
}
@media (max-width: 380px) {
    .blw-header-inner  { gap: 8px; padding: 8px 12px; }
    .blw-logo          { height: 34px; }
    .blw-nav-list-link { padding: 6px 7px; }
}

.blw-list-badge {
    display: inline-block; min-width: 18px; padding: 0 6px;
    background: var(--blw-green-dim); color: #0f1411;
    border-radius: 10px; font-size: 11px; font-weight: 700;
    text-align: center; vertical-align: middle;
}

.blw-search { display: flex; gap: 6px; position: relative; flex: 1 1 280px; min-width: 0; max-width: 560px; }
.blw-search input {
    border: 1px solid var(--blw-line); padding: 7px 10px;
    border-radius: 4px; font: inherit; width: 100%; min-width: 0;
    background: var(--blw-bg); color: var(--blw-ink);
}
.blw-search input:focus { outline: 2px solid var(--blw-green); outline-offset: -1px; }
.blw-search button {
    border: 0; background: var(--blw-green-dim); color: #0f1411;
    padding: 7px 14px; border-radius: 4px; font-weight: 700; cursor: pointer;
}
.blw-search button:hover { background: var(--blw-green); }

/* Typeahead dropdown */
.blw-typeahead {
    position: absolute; top: calc(100% + 4px); left: 0; right: 0;
    background: var(--blw-surface); border: 1px solid var(--blw-line);
    border-radius: 6px; box-shadow: 0 8px 24px -6px rgba(0,0,0,.4);
    max-height: 420px; overflow-y: auto; z-index: 100;
    min-width: 320px;
}
.blw-typeahead-item {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 4px 10px;
    padding: 8px 12px;
    color: var(--blw-ink); text-decoration: none;
    border-bottom: 1px solid var(--blw-line);
}
.blw-typeahead-item:last-child { border-bottom: 0; }
.blw-typeahead-item:hover,
.blw-typeahead-item.active {
    background: var(--blw-green-bg); text-decoration: none;
}
.blw-typeahead-type {
    grid-row: 1 / span 2; align-self: center;
    font-size: 10px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--blw-green); font-weight: 700;
    border: 1px solid var(--blw-green-dark); border-radius: 3px;
    padding: 2px 6px; text-align: center; line-height: 1.4;
}
.blw-typeahead-label {
    font-weight: 600; font-size: 14px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.blw-typeahead-sub {
    grid-column: 2;
    font-size: 12px; color: var(--blw-muted);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.blw-typeahead mark {
    background: transparent; color: var(--blw-green);
    font-weight: 700; padding: 0;
}
.blw-typeahead-empty {
    padding: 12px 14px; color: var(--blw-muted); font-size: 13px;
    border-bottom: 1px solid var(--blw-line);
}
.blw-typeahead-all {
    display: block; padding: 9px 12px;
    font-size: 12px; font-weight: 600;
    color: var(--blw-green); text-decoration: none;
    background: var(--blw-surface-2);
    border-top: 1px solid var(--blw-line);
    text-align: right;
}
.blw-typeahead-all:hover { background: var(--blw-green-bg); text-decoration: none; }

/* --- theme toggle --- */
.blw-theme {
    background: transparent; border: 1px solid var(--blw-line);
    color: var(--blw-ink); cursor: pointer;
    width: 36px; height: 36px; border-radius: 18px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 16px; line-height: 1;
}
.blw-theme:hover { border-color: var(--blw-green); color: var(--blw-green); }
.blw-theme .sun { display: none; }
.blw-theme .moon { display: inline; }
:root[data-theme="dark"] .blw-theme .sun  { display: inline; }
:root[data-theme="dark"] .blw-theme .moon { display: none; }

/* --- crumb trail (sticky) --- */
.blw-crumbs-bar {
    position: sticky; top: var(--blw-header-h, 64px); z-index: 40;
    background: var(--blw-surface-2);
    border-bottom: 1px solid var(--blw-line);
    font-size: 13px;
}
.blw-crumbs-bar.is-empty { display: none; }
.blw-crumbs {
    max-width: 1200px; margin: 0 auto;
    padding: 8px 16px;
    display: flex; flex-wrap: wrap; align-items: center; gap: 2px;
    color: var(--blw-muted);
    overflow-x: auto;
    white-space: nowrap;
}
.blw-crumbs a { color: var(--blw-muted); padding: 2px 6px; border-radius: 3px; }
.blw-crumbs a:hover { background: var(--blw-green-bg); color: var(--blw-green); text-decoration: none; }
.blw-crumbs .current { color: var(--blw-ink); font-weight: 600; padding: 2px 6px; }
.blw-crumbs .sep { color: var(--blw-line); padding: 0 2px; }

.blw-main { max-width: 1200px; margin: 0 auto; padding: 18px 16px 64px; }

h1.blw-title    { color: var(--blw-green); font-size: 22px; margin: 0 0 14px; }
h2.blw-section  { font-size: 14px; text-transform: uppercase; letter-spacing: .05em;
                  color: var(--blw-green); margin: 22px 0 10px; }

/* --- tile grid --- */
.blw-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}
.blw-tile {
    position: relative; display: block;
    padding: 16px 40px 16px 18px; min-height: 64px;
    border: 1px solid var(--blw-line); border-radius: 8px;
    background: var(--blw-surface); color: var(--blw-ink);
    transition: border-color .15s, background .15s, transform .12s, box-shadow .15s;
    text-decoration: none;
}
.blw-tile:hover {
    border-color: var(--blw-green); background: var(--blw-surface-2);
    text-decoration: none; transform: translateY(-1px);
    box-shadow: 0 4px 12px -6px rgba(46, 204, 0, .35);
}
.blw-tile:hover::after { transform: translateX(3px); color: var(--blw-green); }
.blw-tile::after {
    content: '›';
    position: absolute; right: 16px; top: 50%;
    transform: translateY(-50%);
    color: var(--blw-muted); font-size: 22px; line-height: 1;
    transition: transform .15s, color .15s;
}
.blw-tile-title { font-weight: 700; font-size: 15px; }
.blw-tile-sub   { font-size: 12px; color: var(--blw-muted); margin-top: 4px; }

/* Compact variant: dense cards (legacy use). */
.blw-tiles.compact {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 6px;
}
.blw-tiles.compact .blw-tile {
    padding: 8px 28px 8px 12px; min-height: 0; border-radius: 5px;
}
.blw-tiles.compact .blw-tile::after { right: 10px; font-size: 16px; }
.blw-tiles.compact .blw-tile-title { font-size: 14px; font-weight: 600; }
.blw-tiles.compact .blw-tile-sub   { font-size: 11px; margin-top: 1px; }

/* Year pill grid: extra dense — 5-7 per row on desktop. */
.blw-tiles.years {
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
    gap: 6px;
}
.blw-tiles.years .blw-tile {
    padding: 8px 6px; text-align: center; min-height: 0;
}
.blw-tiles.years .blw-tile::after { display: none; }
.blw-tiles.years .blw-tile-title { font-family: var(--blw-font-mono); font-size: 14px; }

/* --- Dense list rows: file-browser style for click-click-click drill-down. --- */
.blw-rows {
    border: 1px solid var(--blw-line); border-radius: 6px;
    background: var(--blw-surface);
    overflow: hidden;
    column-gap: 0;
}
@media (min-width: 720px) {
    .blw-rows.two-col  { column-count: 2; column-rule: 1px solid var(--blw-line); }
    .blw-rows.three-col{ column-count: 3; column-rule: 1px solid var(--blw-line); }
}
.blw-row {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 14px;
    color: var(--blw-ink); text-decoration: none;
    border-bottom: 1px solid var(--blw-line);
    break-inside: avoid;
    transition: background .1s, padding-left .15s;
}
.blw-row:hover {
    background: var(--blw-green-bg); color: var(--blw-green);
    text-decoration: none; padding-left: 18px;
}
.blw-row-main { font-weight: 600; font-size: 14px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.blw-row-meta { font-size: 12px; color: var(--blw-muted); font-family: var(--blw-font-mono); }
.blw-row-chev { color: var(--blw-muted); font-size: 16px; line-height: 1; }
.blw-row:hover .blw-row-chev { color: var(--blw-green); }

/* --- fiche --- */
.blw-fiche {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
}
@media (max-width: 900px) { .blw-fiche { grid-template-columns: 1fr; } }

.blw-fiche-img {
    position: relative;
    border: 1px solid var(--blw-line); border-radius: 6px;
    background: var(--blw-surface);
    overflow: hidden; margin: 0;
    cursor: grab; user-select: none;
    touch-action: none;
}
.blw-fiche-wrap.is-panning .blw-fiche-img { cursor: grabbing; }
/* The stage wraps the image + callout overlay and is the element the zoomer
   transforms, so the boxes pan/zoom locked to the diagram. */
.blw-fiche-stage {
    position: relative; display: block;
    transform-origin: 0 0;
    transition: transform .12s ease-out;
    will-change: transform;
}
.blw-fiche-img.is-panning .blw-fiche-stage { transition: none; }
.blw-fiche-img img {
    display: block; width: 100%; height: auto;
    -webkit-user-drag: none; user-select: none; pointer-events: none;
}
.blw-fiche-img .blw-no-touch { position: absolute; inset: 0; }

/* Callout highlight overlay — boxes are invisible until their callout is hovered
   (from either the diagram or the parts table). */
.blw-callout-layer { position: absolute; inset: 0; pointer-events: none; }
.blw-callout-box {
    position: absolute; box-sizing: border-box;
    border: 2px solid transparent; border-radius: 3px;
    pointer-events: auto; cursor: pointer;
    opacity: 0; transition: opacity .1s ease;
}
.blw-callout-box.is-active {
    opacity: 1; border-color: var(--blw-green);
    box-shadow: 0 0 0 2px var(--blw-green), 0 0 12px 3px var(--blw-green);
}
table.blw-parts tr.is-callout-active td { background: var(--blw-green-bg) !important; }
table.blw-parts tr[data-callout] { cursor: pointer; }

.blw-fiche-wrap { display: flex; flex-direction: column; gap: 6px; }
.blw-zoom-bar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 6px 10px;
    background: var(--blw-surface-2);
    border: 1px solid var(--blw-line); border-radius: 6px;
    font-size: 12px;
}
.blw-zoom-hint   { color: var(--blw-muted); transition: opacity .25s; }
.blw-zoom-controls { display: flex; gap: 4px; }
.blw-zoom-controls button {
    background: transparent; border: 1px solid var(--blw-line); cursor: pointer;
    color: var(--blw-ink); width: 28px; height: 28px;
    border-radius: 4px; font-size: 16px; font-weight: 700;
    display: inline-flex; align-items: center; justify-content: center;
    transition: border-color .12s, color .12s, background .12s;
}
.blw-zoom-controls button:hover { background: var(--blw-green-bg); color: var(--blw-green); border-color: var(--blw-green); }
.blw-fiche-wrap.is-zoomed .blw-zoom-hint { opacity: .4; }
@media (max-width: 520px) {
    .blw-zoom-hint { display: none; }
    .blw-zoom-bar  { justify-content: flex-end; }
}

table.blw-parts {
    width: 100%; border-collapse: collapse; font-size: 14px;
    background: var(--blw-surface);
}
table.blw-parts th, table.blw-parts td {
    text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--blw-line);
    vertical-align: top;
}
table.blw-parts th {
    background: var(--blw-green-bg); color: var(--blw-green);
    font-weight: 700; border-bottom: 2px solid var(--blw-green-dark);
}
table.blw-parts tr:nth-child(even) td { background: var(--blw-row-alt); }
table.blw-parts td.code a { font-family: var(--blw-font-mono); font-weight: 600; }
table.blw-parts td.price { text-align: right; white-space: nowrap; }
table.blw-parts td.add   { width: 1%; white-space: nowrap; }
/* Reserve room for the wider "Added ✓" state so the column doesn't reflow on click. */
table.blw-parts td.add .blw-btn { min-width: 84px; text-align: center; }

.blw-btn {
    display: inline-block; padding: 6px 12px; border-radius: 4px;
    background: var(--blw-green-dim); color: #0f1411; border: 0; font-weight: 700;
    font-size: 13px; cursor: pointer; font-family: inherit;
}
.blw-btn:hover { background: var(--blw-green); text-decoration: none; color: #0f1411; }
.blw-btn.secondary {
    background: transparent; color: var(--blw-green);
    border: 1px solid var(--blw-line);
}
.blw-btn.secondary:hover { background: var(--blw-green-bg); border-color: var(--blw-green); }
.blw-btn.danger    { background: var(--blw-warn); color: #fff; }
.blw-btn.danger:hover { color: #fff; }

/* --- part detail --- */
.blw-part-detail {
    display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 760px;
}
.blw-kv {
    display: grid; grid-template-columns: 140px 1fr;
    gap: 6px 14px; font-size: 14px;
}
.blw-kv dt { color: var(--blw-muted); }
.blw-kv dd { margin: 0; }

/* --- fitment ("Fits these models") panel on part detail --- */
.blw-fitment-list {
    list-style: none; margin: 0; padding: 0;
    border: 1px solid var(--blw-line); border-radius: 6px;
    background: var(--blw-surface); overflow: hidden;
}
.blw-fitment-model { padding: 10px 14px; border-bottom: 1px solid var(--blw-line); }
.blw-fitment-model:last-child { border-bottom: 0; }
.blw-fitment-name { font-weight: 600; font-size: 14px; }
.blw-fitment-cat  { color: var(--blw-muted); font-weight: 400; font-size: 12px; margin-left: 8px; }
.blw-fitment-assys { margin-top: 5px; display: flex; flex-wrap: wrap; gap: 5px 6px; }
.blw-fitment-assys a {
    font-size: 12px; padding: 1px 9px; border: 1px solid var(--blw-line);
    border-radius: 11px; color: var(--blw-muted);
}
.blw-fitment-assys a:hover { border-color: var(--blw-green); color: var(--blw-green); text-decoration: none; }
.blw-fitment-more { color: var(--blw-muted); font-size: 13px; margin-top: 8px; }

.blw-share {
    display: flex; gap: 8px; margin-top: 14px;
    background: var(--blw-surface-2); padding: 10px;
    border: 1px solid var(--blw-line); border-radius: 6px;
}
.blw-share input {
    flex: 1; border: 1px solid var(--blw-line);
    padding: 6px 8px; border-radius: 4px; font: inherit;
    background: var(--blw-bg); color: var(--blw-ink);
}

textarea {
    background: var(--blw-bg); color: var(--blw-ink);
    border: 1px solid var(--blw-line); border-radius: 4px;
}
input[type="number"] {
    background: var(--blw-bg); color: var(--blw-ink);
    border: 1px solid var(--blw-line); border-radius: 4px;
    padding: 3px 6px; font: inherit;
}

.blw-footer {
    border-top: 1px solid var(--blw-line);
    padding: 18px 0; margin-top: 40px;
    color: var(--blw-muted); font-size: 12px;
    background: var(--blw-surface);
}
.blw-footer-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 16px;
    display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}

.blw-empty {
    color: var(--blw-muted); padding: 24px; text-align: center;
    border: 1px dashed var(--blw-line); border-radius: 6px;
    background: var(--blw-surface);
}

.blw-note {
    color: var(--blw-muted); font-size: 13px; margin: 0 0 10px;
}

/* --- modal dialog (replaces native alert/confirm) --- */
body.blw-modal-open { overflow: hidden; }
.blw-modal-overlay {
    position: fixed; inset: 0; z-index: 200;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, .55);
    -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.blw-modal {
    background: var(--blw-surface); color: var(--blw-ink);
    border: 1px solid var(--blw-line); border-radius: 10px;
    box-shadow: 0 16px 48px -12px rgba(0, 0, 0, .6);
    width: 100%; max-width: 420px; padding: 20px 22px;
}
.blw-modal-title   { margin: 0 0 8px; font-size: 18px; color: var(--blw-green); }
.blw-modal-msg     { margin: 0 0 18px; font-size: 14px; line-height: 1.5; }
.blw-modal-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
@media (prefers-reduced-motion: no-preference) {
    .blw-modal { animation: blw-modal-in .14s ease-out; }
    @keyframes blw-modal-in { from { transform: translateY(6px); opacity: 0; } to { transform: none; opacity: 1; } }
}

@media print {
    .blw-header, .blw-crumbs-bar, .blw-footer, .blw-btn, .blw-share, .blw-theme { display: none !important; }
    body { background: #fff !important; color: #000 !important; }
    .blw-ad { display: none !important; }
}

/* ---- Display ads --------------------------------------------------------- */
/* Reserve vertical space so a loading ad doesn't shove content (limits CLS). */
.blw-ad {
    display: block;
    margin: 24px auto;
    min-height: 100px;
    text-align: center;
    overflow: hidden;
}
.blw-ad-label {
    display: block;
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--blw-muted);
    margin-bottom: 4px;
}
.blw-ad .adsbygoogle { display: block; }

/* ---- Prose (privacy / static text pages) -------------------------------- */
.blw-prose { max-width: 70ch; line-height: 1.65; }
.blw-prose h2 { margin: 1.4em 0 .4em; font-size: 1.1rem; }
.blw-prose p { margin: 0 0 .8em; }
.blw-prose a { color: var(--blw-accent, #1f8b00); }