/* Datasheet — reference kit (Tastefolio). Parametric catalog UI: blueprint grids, schematic traces, mono part numbers,
   spec chips, LED stock dots, price-break tables, seven-segment readouts. Requires tokens.css. RTL-safe. */

@font-face { font-family: "DSEG7 Classic"; src: url("https://cdn.jsdelivr.net/npm/dseg@0.46.0/fonts/DSEG7-Classic/DSEG7Classic-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: var(--fw-regular) var(--fs-md)/var(--lh-body) var(--font-sans); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, p { margin: 0; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 1px; }
[dir="rtl"] .flip-rtl { transform: scaleX(-1); }
.sr-only { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; inset-inline-start: 12px; inset-block-start: -60px; z-index: 100; background: var(--brand); color: #fff; padding: 10px 14px; }
.skip-link:focus { inset-block-start: 12px; }
.ti { font-size: 1.15em; line-height: 1; }

.container { max-inline-size: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.row { display: flex; align-items: center; gap: var(--gap, var(--space-3)); flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: var(--gap, var(--space-3)); }
.section { padding-block: clamp(40px, 6vw, 72px); }
.mono { font-family: var(--font-mono); font-size: .92em; letter-spacing: -.01em; }
.ltr { direction: ltr; unicode-bidi: isolate; }
.muted { color: var(--ink-2); }
.subtle { color: var(--ink-3); }
.small { font-size: var(--fs-sm); }
.tiny { font-size: var(--fs-xs); }

/* ------------------------------------------------------------ engineering motifs */
.blueprint { background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 20px 20px; }
.traces { position: absolute; inset: 0; pointer-events: none; color: var(--line-2); }
.traces path { fill: none; stroke: currentColor; stroke-width: 1.5; }
.traces circle { fill: var(--surface); stroke: currentColor; stroke-width: 1.5; }
.traces .hot { color: var(--brand); }
.index-title { display: flex; align-items: baseline; gap: var(--space-3); font: var(--fw-display) clamp(22px, 2.4vw, var(--fs-2xl))/1.15 var(--font-display); letter-spacing: var(--tracking-display); }
.index-title .n { font: 500 13px var(--font-mono); color: var(--brand); letter-spacing: 0; }
.index-title .n::after { content: " —"; color: var(--ink-3); }
.section-bar { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-4); padding-block-end: var(--space-3); margin-block-end: var(--space-5); border-block-end: 2px solid var(--ink); flex-wrap: wrap; }
.section-bar a { font-weight: 600; font-size: var(--fs-sm); color: var(--brand); }
.display { font: var(--fw-display) var(--fs-display)/var(--lh-tight) var(--font-display); letter-spacing: var(--tracking-display); text-transform: uppercase; }
:lang(fa) .display { text-transform: none; }
.led { display: inline-flex; align-items: center; gap: 7px; font-size: var(--fs-sm); font-weight: 600; white-space: nowrap; }
.led::before { content: ""; inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px var(--success-soft), 0 0 6px var(--success); }
.led.low::before { background: var(--warning); box-shadow: 0 0 0 3px var(--warning-soft), 0 0 6px var(--warning); }
.led.out::before { background: var(--ink-3); box-shadow: 0 0 0 3px var(--surface-3); }
.led.low { color: var(--warning); }
.led.out { color: var(--ink-3); }
/* seven-segment readout: always LTR, Latin digits (instrument display) */
.readout { position: relative; display: inline-grid; direction: ltr; padding: 10px 14px; border-radius: var(--radius-md); background: #0d0f11; border: 1px solid #000; box-shadow: inset 0 0 0 2px #1d2126, inset 0 8px 20px rgba(0,0,0,.6); }
.readout b, .readout s { grid-area: 1 / 1; font: 700 var(--readout-size, 30px)/1 var(--font-readout); letter-spacing: .04em; text-decoration: none; text-align: end; }
.readout s { color: rgba(255, 60, 70, .1); }
.readout b { color: #ff3b47; text-shadow: 0 0 10px rgba(255, 59, 71, .55); }
.readout.green b { color: #3dff7a; text-shadow: 0 0 10px rgba(61, 255, 122, .45); }
.readout.green s { color: rgba(61, 255, 122, .08); }
.readout-label { font: 600 10.5px var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
:lang(fa) .readout-label { font: 600 12px var(--font-sans); text-transform: none; letter-spacing: 0; }

/* ------------------------------------------------------------ buttons & inputs */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-block-size: var(--control-h); padding-inline: 14px; border-radius: var(--radius-md); border: 1px solid transparent; background: transparent; font-size: 14px; font-weight: 600; line-height: 1; cursor: pointer; white-space: nowrap; transition: background var(--dur-1), border-color var(--dur-1), color var(--dur-1); }
.btn-primary { background: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { background: var(--brand-strong); color: var(--brand-ink); }
.btn-dark { background: var(--surface-ink); color: var(--ink-inverse); }
.btn-dark:hover { opacity: .88; color: var(--ink-inverse); }
.btn-outline { border-color: var(--line-2); background: var(--surface); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink); color: var(--ink); }
.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--ink); }
.btn-lg { min-block-size: var(--control-h-lg); padding-inline: 20px; font-size: 15px; }
.btn-sm { min-block-size: 30px; padding-inline: 10px; font-size: 13px; }
.btn-icon { inline-size: var(--control-h); padding: 0; }
.input, .select, .textarea { inline-size: 100%; min-block-size: var(--control-h); padding: 6px 10px; border-radius: var(--radius-md); border: 1px solid var(--line-2); background: var(--surface); font-size: 14px; transition: border-color var(--dur-1), box-shadow var(--dur-1); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--focus); }
.select { appearance: none; padding-inline-end: 28px; background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='none' stroke='%238b9198' stroke-width='1.6'%3E%3Cpath d='m2 3.5 3 3 3-3'/%3E%3C/svg%3E") no-repeat right 10px center; }
[dir="rtl"] .select { background-position: left 10px center; }
.textarea { min-block-size: 100px; resize: vertical; }
[aria-invalid="true"] { border-color: var(--danger) !important; }
.field { display: grid; gap: 5px; }
.label { font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.field-error { color: var(--danger); font-size: 12px; }
.check { display: flex; gap: 8px; align-items: center; font-size: 13.5px; cursor: pointer; }
.check input { accent-color: var(--brand); inline-size: 15px; block-size: 15px; margin: 0; }
.check .n { margin-inline-start: auto; font: 12px var(--font-mono); color: var(--ink-3); }
.qty { display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--radius-md); overflow: hidden; block-size: 32px; }
.qty button { inline-size: 28px; border: 0; background: var(--surface-2); cursor: pointer; font-weight: 700; }
.qty button:hover { background: var(--surface-3); }
.qty input { inline-size: 54px; border: 0; border-inline: 1px solid var(--line-2); text-align: center; font: 13px var(--font-mono); direction: ltr; -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.toggle { position: relative; inline-size: 36px; block-size: 20px; border-radius: 999px; background: var(--line-2); border: 0; cursor: pointer; padding: 0; flex: none; }
.toggle::after { content: ""; position: absolute; inset-block-start: 2px; inset-inline-start: 2px; inline-size: 16px; block-size: 16px; border-radius: 50%; background: #fff; transition: transform var(--dur-2); }
.toggle[aria-checked="true"] { background: var(--success); }
.toggle[aria-checked="true"]::after { transform: translateX(16px); }
[dir="rtl"] .toggle[aria-checked="true"]::after { transform: translateX(-16px); }

/* chips */
.spec { display: inline-flex; align-items: center; padding: 2px 7px; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--line); font: 12px/1.6 var(--font-mono); color: var(--ink-2); white-space: nowrap; direction: ltr; }
.specs { display: flex; flex-wrap: wrap; gap: 4px; }
.tag { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: var(--radius-sm); font-size: 11.5px; font-weight: 700; background: var(--surface-3); color: var(--ink-2); white-space: nowrap; }
.tag-red { background: var(--brand-soft); color: var(--brand); }
.tag-ok { background: var(--success-soft); color: var(--success); }
.tag-warn { background: var(--warning-soft); color: var(--warning); }
.tag-info { background: var(--info-soft); color: var(--info); }

/* ------------------------------------------------------------ header */
.util { background: var(--surface-ink); color: rgba(255,255,255,.78); font-size: 12.5px; }
.util .container { display: flex; gap: var(--space-5); align-items: center; min-block-size: 32px; flex-wrap: wrap; }
.util .end { margin-inline-start: auto; display: flex; gap: var(--space-4); }
.util a:hover { color: #fff; }
.masthead { background: var(--surface); border-block-end: 1px solid var(--line); position: sticky; inset-block-start: 0; z-index: 40; }
.masthead .main { display: flex; gap: var(--space-5); align-items: center; min-block-size: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 700 22px var(--font-display); letter-spacing: -.01em; }
.logo-mark { inline-size: 34px; block-size: 34px; display: grid; place-items: center; background: var(--brand); color: #fff; border-radius: var(--radius-md); font-size: 20px; }
.searchbar { flex: 1; display: flex; border: 2px solid var(--ink); border-radius: var(--radius-md); overflow: hidden; max-inline-size: 640px; }
.searchbar .select { border: 0; border-radius: 0; inline-size: auto; max-inline-size: 160px; background-color: var(--surface-2); border-inline-end: 1px solid var(--line-2); }
.searchbar .input { border: 0; border-radius: 0; box-shadow: none !important; min-block-size: 40px; }
.searchbar .btn { border-radius: 0; min-block-size: 40px; }
.head-end { display: flex; gap: var(--space-2); align-items: center; margin-inline-start: auto; }
.cart { position: relative; }
.cart .count { position: absolute; inset-block-start: -2px; inset-inline-end: -2px; min-inline-size: 18px; block-size: 18px; border-radius: 999px; background: var(--brand); color: #fff; font: 700 11px/18px var(--font-mono); text-align: center; padding-inline: 4px; }
.navrow { display: flex; gap: 2px; align-items: center; min-block-size: 44px; border-block-start: 1px solid var(--line); }
.navrow > a { padding: 10px 12px; font-size: 14px; font-weight: 500; color: var(--ink-2); }
.navrow > a:hover { color: var(--brand); }
.allcats { position: relative; }
.allcats > button { display: inline-flex; gap: 8px; align-items: center; min-block-size: 44px; padding-inline: 14px; border: 0; background: var(--surface-ink); color: #fff; font-weight: 600; cursor: pointer; }
.cat-menu { position: absolute; inset-block-start: 100%; inset-inline-start: 0; inline-size: 300px; background: var(--surface); border: 1px solid var(--line-2); box-shadow: var(--shadow-3); display: none; z-index: 50; }
.cat-menu[data-open] { display: block; }
.cat-menu a { display: flex; align-items: center; gap: 10px; padding: 10px 14px; font-size: 14px; border-block-end: 1px solid var(--line); }
.cat-menu a:hover { background: var(--surface-2); }
.cat-menu a .n { margin-inline-start: auto; font: 11.5px var(--font-mono); color: var(--ink-3); }
.menu-btn { display: none; }
@media (max-width: 960px) { .navrow > a, .hide-md { display: none !important; } .searchbar .select { display: none; } }
@media (max-width: 640px) { .masthead .main { flex-wrap: wrap; padding-block: 10px; gap: var(--space-3); } .searchbar { order: 3; flex-basis: 100%; max-inline-size: none; } }

/* ------------------------------------------------------------ hero */
.hero { display: grid; grid-template-columns: 280px minmax(0, 1fr) 300px; gap: var(--space-4); padding-block: var(--space-5); }
.hero > * { min-inline-size: 0; }
.tree { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.tree a { display: flex; align-items: center; gap: 10px; padding: 9px 14px; font-size: 13.5px; border-block-end: 1px solid var(--line); }
.tree a:last-child { border: 0; }
.tree a:hover { background: var(--surface-2); }
.tree i { color: var(--ink-3); }
.tree a:hover i { color: var(--brand); }
.banner { position: relative; overflow: hidden; border-radius: var(--radius-lg); border: 1px solid var(--line); padding: clamp(24px, 4vw, 44px); display: grid; align-content: center; gap: var(--space-4); min-block-size: 360px; }
.banner > :not(.traces) { position: relative; }
.promo-stack { display: grid; gap: var(--space-4); }
.promo { border-radius: var(--radius-lg); padding: var(--space-5); display: grid; gap: 6px; align-content: end; min-block-size: 172px; position: relative; overflow: hidden; }
.promo.dark { background: var(--surface-ink); color: #fff; }
.promo.red { background: var(--brand); color: #fff; }
.promo b { font: 700 22px/1.15 var(--font-display); }
@media (max-width: 1100px) { .hero { grid-template-columns: minmax(0, 1fr) 280px; } .hero .tree { display: none; } }
@media (max-width: 760px) { .hero { grid-template-columns: minmax(0, 1fr); } .promo-stack { grid-template-columns: 1fr 1fr; } .promo { min-block-size: 130px; } }

/* category tiles */
.cats { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.cats a { display: grid; justify-items: center; gap: 8px; padding: var(--space-5) var(--space-2); text-align: center; font-size: 13px; font-weight: 600; border-inline-end: 1px solid var(--line); border-block-end: 1px solid var(--line); margin: 0 -1px -1px 0; transition: background var(--dur-1); }
.cats a:hover { background: var(--surface-2); }
.cats i { font-size: 28px; color: var(--brand); }
.cats span { font: 11px var(--font-mono); color: var(--ink-3); }
@media (max-width: 1000px) { .cats { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* part cards */
.part-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-3); }
@media (max-width: 1200px) { .part-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) { .part-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.part-card { display: grid; gap: 8px; padding: var(--space-3); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); transition: border-color var(--dur-2), box-shadow var(--dur-2); min-inline-size: 0; }
.part-card:hover { border-color: var(--ink); box-shadow: var(--shadow-2); }
.part-img { aspect-ratio: 4 / 3; border-radius: var(--radius-md); background: var(--surface-2); display: grid; place-items: center; color: var(--ink-2); }
.part-img svg { inline-size: 64%; block-size: auto; }
.mpn { font: 600 13px var(--font-mono); direction: ltr; text-align: start; unicode-bidi: plaintext; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mfr { font-size: 12px; color: var(--ink-3); }
.price { font: 700 17px var(--font-sans); }
.price small { font-weight: 400; font-size: 12px; color: var(--ink-3); }

/* ------------------------------------------------------------ parametric catalog */
.catalog { display: grid; grid-template-columns: var(--filters-w) minmax(0, 1fr); gap: var(--space-5); align-items: start; }
.filters { position: sticky; inset-block-start: 128px; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.filters-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; background: var(--surface-2); border-block-end: 1px solid var(--line); font-weight: 700; }
.facet { border-block-end: 1px solid var(--line); }
.facet:last-child { border: 0; }
.facet summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; padding: 12px 14px; font-weight: 600; font-size: 13.5px; }
.facet summary::-webkit-details-marker { display: none; }
.facet summary::after { content: "+"; font-family: var(--font-mono); color: var(--ink-3); }
.facet[open] summary::after { content: "−"; }
.facet .opts { display: grid; gap: 8px; padding: 0 14px 14px; }
.range { display: grid; grid-template-columns: 1fr auto 1fr; gap: 6px; align-items: center; }
.range .input { min-block-size: 32px; font: 13px var(--font-mono); direction: ltr; }
@media (max-width: 960px) { .catalog { grid-template-columns: minmax(0, 1fr); } .filters { position: static; } }
.results-bar { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-block-end: 0; border-start-start-radius: var(--radius-lg); border-start-end-radius: var(--radius-lg); background: var(--surface-2); }
.results-bar .count { font: 600 13px var(--font-mono); }
.results-bar .spacer { flex: 1; }
.applied { display: flex; gap: 6px; flex-wrap: wrap; }
.applied button { display: inline-flex; gap: 6px; align-items: center; padding: 3px 8px; border-radius: var(--radius-sm); border: 1px solid var(--ink); background: var(--surface); font-size: 12px; cursor: pointer; }
.table-scroll { position: relative; overflow-x: auto; border: 1px solid var(--line); }
.parts { inline-size: 100%; border-collapse: collapse; font-size: 13.5px; min-inline-size: 980px; }
.parts thead th { position: sticky; inset-block-start: 0; background: var(--surface); text-align: start; font: 600 11px var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); padding: 10px; border-block-end: 2px solid var(--ink); white-space: nowrap; z-index: 1; }
:lang(fa) .parts thead th { font: 700 12px var(--font-sans); text-transform: none; letter-spacing: 0; }
.parts th button { all: unset; cursor: pointer; }
.parts th[aria-sort="ascending"] button::after { content: " ▲"; color: var(--brand); }
.parts th[aria-sort="descending"] button::after { content: " ▼"; color: var(--brand); }
.parts td { padding: 10px; border-block-end: 1px solid var(--line); vertical-align: middle; }
.parts tbody tr:nth-child(even) td { background: color-mix(in oklab, var(--surface-2) 55%, transparent); }
.parts tbody tr:hover td { background: var(--brand-soft); }
.parts .thumb { inline-size: 40px; block-size: 40px; border-radius: var(--radius-sm); background: var(--surface-2); display: grid; place-items: center; color: var(--ink-2); }
.parts .thumb svg { inline-size: 28px; }
.breaks { border-collapse: collapse; font: 12px var(--font-mono); direction: ltr; }
.breaks td { padding: 1px 6px; border: 0 !important; background: none !important; }
.breaks td:first-child { color: var(--ink-3); text-align: end; }
.compare-bar { position: sticky; inset-block-end: 12px; z-index: 30; margin-block-start: var(--space-4); display: flex; align-items: center; gap: var(--space-3); padding: 10px 14px; border-radius: var(--radius-lg); background: var(--surface-ink); color: #fff; box-shadow: var(--shadow-3); flex-wrap: wrap; }
.compare-bar .chips { display: flex; gap: 6px; flex-wrap: wrap; }
.compare-bar .chips span { font: 12px var(--font-mono); padding: 2px 8px; border-radius: var(--radius-sm); background: rgba(255,255,255,.12); }
.compare-bar .spacer { flex: 1; }
.compare-table { inline-size: 100%; border-collapse: collapse; font-size: 13.5px; }
.compare-table th, .compare-table td { padding: 8px 10px; border: 1px solid var(--line); text-align: start; }
.compare-table th { background: var(--surface-2); font-weight: 600; }

/* ------------------------------------------------------------ procurement app */
.app-head { background: var(--surface-ink); color: #fff; }
.app-head .container { display: flex; align-items: center; gap: var(--space-5); min-block-size: 58px; }
.app-head .logo { color: #fff; font-size: 20px; }
.app-head .logo-mark { inline-size: 30px; block-size: 30px; font-size: 17px; }
.app-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; flex: 1; min-inline-size: 0; }
@media (max-width: 640px) { .app-head .container { gap: var(--space-2); } .app-head .logo > span:last-child { display: none; } .app-tabs [role="tab"] { padding-inline: 10px; } }
.app-tabs [role="tab"] { border: 0; background: none; color: rgba(255,255,255,.7); padding: 0 14px; min-block-size: 58px; font-weight: 600; font-size: 14px; cursor: pointer; border-block-end: 3px solid transparent; white-space: nowrap; }
.app-tabs [role="tab"]:hover { color: #fff; }
.app-tabs [role="tab"][aria-selected="true"] { color: #fff; border-color: var(--brand); }
.app-head .end { margin-inline-start: auto; display: flex; gap: 6px; align-items: center; }
.app-head .btn-ghost { color: rgba(255,255,255,.75); }
.app-head .btn-ghost:hover { background: rgba(255,255,255,.08); color: #fff; }
.app-body { padding-block: var(--space-6) var(--space-9); display: grid; gap: var(--space-5); }
.app-body > * { min-inline-size: 0; }
.readouts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-3); }
@media (max-width: 1000px) { .readouts { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.instrument { display: grid; gap: 8px; padding: var(--space-4); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); }
.instrument .readout { justify-self: stretch; --readout-size: clamp(22px, 2.4vw, 30px); }
.instrument .delta { font-size: 12.5px; color: var(--ink-2); }
.panel { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); min-inline-size: 0; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: 12px 16px; border-block-end: 1px solid var(--line); background: var(--surface-2); flex-wrap: wrap; border-start-start-radius: var(--radius-lg); border-start-end-radius: var(--radius-lg); }
.panel-head h2 { font: 700 15px var(--font-sans); }
.panel-body { padding: 16px; }
.dropzone { display: grid; place-items: center; gap: 8px; padding: var(--space-7); border: 2px dashed var(--line-2); border-radius: var(--radius-lg); text-align: center; background: var(--surface-2); cursor: pointer; transition: border-color var(--dur-2), background var(--dur-2); }
.dropzone:hover, .dropzone.is-over { border-color: var(--brand); background: var(--brand-soft); }
.dropzone i { font-size: 34px; color: var(--brand); }
.bom-progress { display: flex; block-size: 10px; border-radius: 99px; overflow: hidden; background: var(--surface-3); }
.bom-progress i { display: block; block-size: 100%; inline-size: var(--w); }
.split { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: var(--space-4); }
@media (max-width: 1000px) { .split { grid-template-columns: minmax(0, 1fr); } }
.order-line { display: grid; grid-template-columns: auto 1fr auto; gap: var(--space-3); align-items: center; padding: 12px 16px; border-block-end: 1px solid var(--line); }
.order-line:last-child { border: 0; }
.steps-mini { display: flex; gap: 3px; direction: ltr; }
.steps-mini i { inline-size: 18px; block-size: 5px; border-radius: 2px; background: var(--surface-3); }
.steps-mini i.on { background: var(--brand); }

/* overlays */
dialog.modal { border: 0; padding: 0; border-radius: var(--radius-lg); inline-size: min(720px, calc(100vw - 24px)); background: var(--surface); color: var(--ink); box-shadow: var(--shadow-3); }
dialog.modal::backdrop { background: var(--overlay); }
.toast { background: var(--surface-ink); color: #fff; padding: 11px 14px; border-radius: var(--radius-md); font-size: 13.5px; box-shadow: var(--shadow-3); display: flex; gap: 8px; align-items: center; animation: toast-in var(--dur-3) var(--ease); }
.toast::before { content: ""; inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 6px var(--success); }
.toast.is-out { opacity: 0; transition: opacity var(--dur-2); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
.tf-chart .c-grid { stroke: var(--chart-grid); }
.tf-chart .c-axis { fill: var(--chart-axis); font: 10.5px var(--font-mono); }
:lang(fa) .tf-chart .c-axis { font-family: var(--font-sans); font-size: 11px; }
.tf-chart .c-dot { fill: var(--surface); stroke-width: 2; }
.tf-chart .c-guide { stroke: var(--ink-3); stroke-dasharray: 2 2; }
.tf-chart .c-track { stroke: var(--surface-3); }
.tf-chart .c-center { position: absolute; inset: 0; display: grid; place-items: center; font: 700 18px var(--font-mono); }
.chart-tip { background: var(--surface-ink); color: #fff; padding: 7px 10px; border-radius: var(--radius-md); font: 12px var(--font-mono); display: grid; gap: 3px; }
.chart-tip span { display: flex; gap: 6px; align-items: center; }
.chart-tip i { inline-size: 8px; block-size: 8px; }

/* footer */
.site-footer { border-block-start: 2px solid var(--ink); padding-block: var(--space-8) var(--space-6); font-size: 13.5px; margin-block-start: var(--space-8); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: var(--space-6); }
.footer-grid h4 { font: 600 11.5px var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); margin-block-end: 12px; }
:lang(fa) .footer-grid h4 { font: 700 13px var(--font-sans); text-transform: none; letter-spacing: 0; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.footer-grid a { color: var(--ink-2); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }