:root {
    --canvas: #08080a;
    --surface: #0e0e11;
    --surface-raised: #151519;
    --surface-hover: #1b1b20;
    --sidebar: #050507;
    --line: #2a2a31;
    --line-strong: #474750;
    --text: #f7f7f9;
    --text-soft: #c9c9d1;
    --text-muted: #8e8e99;
    --accent: #fdfd96;
    --accent-hover: #ffffb8;
    --accent-soft: rgba(253, 253, 150, .11);
    --accent-border: rgba(253, 253, 150, .45);
    --accent-text: #171704;
    --danger: #fdfd96;
    --success: #75c79b;
    --warning: #e4b75d;
    --radius-panel: 14px;
    --radius-control: 8px;
    font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body { color: var(--text); }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.app { display: none; width: 100%; min-height: 100dvh; align-items: center; justify-content: center; padding: 3vh 2.5vw; background: transparent; }
.app.is-open { display: flex; }
.app.is-customizing { justify-content: flex-end; padding-right: 2vw; }
.app.is-customizing .workspace { width: min(760px, 49vw); grid-template-columns: 184px minmax(0, 1fr); }
.app.is-customizing .content { padding-inline: 18px; }
.app.is-customizing .customization-row { grid-template-columns: 1fr; }
.app.vehicle-viewing { display: none; }
.workspace { display: grid; grid-template-columns: 236px minmax(0, 1fr); width: min(1510px, 95vw); height: min(910px, 94vh); overflow: hidden; border: 1px solid var(--line-strong); border-radius: 16px; background: var(--canvas); box-shadow: 0 28px 80px rgba(2, 2, 4, .65); }
.sidebar { display: flex; min-width: 0; flex-direction: column; padding: 22px 16px; border-right: 1px solid var(--line); background: var(--sidebar); }
.brand { display: flex; min-height: 54px; align-items: center; gap: 12px; padding: 0 7px 18px; }
.brand-mark { display: grid; width: 48px; height: 48px; flex: 0 0 48px; place-items: center; border: 1px solid var(--accent-border); border-radius: 13px; background: var(--accent); color: var(--accent-text); font-size: 22px; font-weight: 900; box-shadow: inset 0 0 0 3px rgba(20, 20, 3, .1); }
.brand-copy { min-width: 0; }
.brand-copy strong, .brand-copy span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.brand-copy strong { font-size: 15px; }
.brand-copy span { margin-top: 3px; color: var(--text-muted); font-size: 11px; }
.navigation { display: grid; gap: 4px; margin-top: 8px; overflow: auto; scrollbar-width: none; }
.nav-button { display: flex; width: 100%; min-height: 39px; align-items: center; justify-content: space-between; padding: 0 11px; border: 1px solid transparent; border-radius: var(--radius-control); background: transparent; color: var(--text-soft); text-align: left; cursor: pointer; transition: background 140ms ease, border-color 140ms ease, color 140ms ease, transform 140ms ease; }
.nav-button:hover { background: var(--surface); color: var(--text); }
.nav-button.is-active { border-color: var(--accent-border); background: var(--accent-soft); color: var(--accent-hover); }
.nav-button:active, .button:active, .app-tile:active { transform: translateY(1px) scale(.985); }
.nav-meta { color: var(--text-muted); font-family: ui-monospace, "Cascadia Mono", monospace; font-size: 10px; }
.sidebar-footer { display: grid; gap: 3px; margin-top: auto; padding: 18px 8px 2px; border-top: 1px solid var(--line); }
.sidebar-footer span { overflow: hidden; color: var(--text-muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-footer strong { overflow: hidden; font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }

.content-column { display: flex; min-width: 0; min-height: 0; overflow: hidden; flex-direction: column; }
.topbar { display: flex; min-height: 88px; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 28px; border-bottom: 1px solid var(--line); }
.topbar-heading p { margin: 0 0 3px; color: var(--text-muted); font-size: 12px; }
h1 { margin: 0; font-size: 24px; line-height: 1.2; letter-spacing: -.025em; }
h2, h3, p { margin-top: 0; }
h2 { margin-bottom: 5px; font-size: 17px; letter-spacing: -.015em; }
h3 { margin-bottom: 4px; font-size: 14px; }
.topbar-actions, .toolbar, .toolbar-group, .action-row, .pagination { display: flex; align-items: center; gap: 8px; }
.vehicle-chip { max-width: 240px; overflow: hidden; padding: 7px 10px; border: 1px solid var(--accent-border); border-radius: var(--radius-control); background: var(--accent-soft); color: var(--accent-hover); font: 11px ui-monospace, "Cascadia Mono", monospace; text-overflow: ellipsis; white-space: nowrap; }
.content { flex: 1; min-height: 0; overflow: auto; padding: 24px 28px 42px; overscroll-behavior: contain; scrollbar-color: var(--line-strong) transparent; scrollbar-width: thin; }
.stack { display: grid; gap: 18px; }
.split { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(290px, .75fr); gap: 18px; align-items: start; }
.grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.grid-three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.grid-four { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.panel { border: 1px solid var(--line); border-radius: var(--radius-panel); background: var(--surface); }
.panel-pad { padding: 20px; }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: 16px; }
.section-header p, .panel p, .muted { margin-bottom: 0; color: var(--text-muted); font-size: 12px; line-height: 1.55; }
.metric { min-height: 104px; padding: 16px; border-top: 2px solid var(--line-strong); background: transparent; }
.metric.accent { border-top-color: var(--accent); }
.metric span { color: var(--text-muted); font-size: 11px; }
.metric strong { display: block; margin-top: 13px; font: 700 24px ui-monospace, "Cascadia Mono", monospace; }
.metric small { color: var(--text-soft); }

.button { min-height: 38px; padding: 0 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-control); background: var(--surface-raised); color: var(--text); font-weight: 600; white-space: nowrap; cursor: pointer; transition: background 140ms ease, border-color 140ms ease, transform 140ms ease; }
.button:hover { border-color: #61616c; background: var(--surface-hover); }
.button.primary { border-color: var(--accent); background: var(--accent); color: var(--accent-text); }
.button.primary:hover { border-color: var(--accent-hover); background: var(--accent-hover); }
.button.ghost { background: transparent; }
.button.danger { border-color: rgba(253, 253, 150, .5); background: rgba(253, 253, 150, .1); color: var(--accent); }
.button.compact { min-height: 36px; padding: 0 13px; font-size: 12px; }
.button.small { min-height: 31px; padding: 0 10px; font-size: 11px; }
.button:disabled { cursor: not-allowed; opacity: .45; }
.wide-button { width: 100%; }

.field { display: grid; gap: 7px; }
.field label { color: var(--text-soft); font-size: 12px; font-weight: 600; }
.field small { color: var(--text-muted); font-size: 11px; }
input, select, textarea { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: var(--radius-control); background: #0a0a0d; color: var(--text); }
textarea { min-height: 92px; resize: vertical; }
input::placeholder, textarea::placeholder { color: #85858f; }
input[type="range"] { min-height: 28px; padding: 0; accent-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid .wide { grid-column: 1 / -1; }

.feature-list { display: grid; }
.feature-row { display: grid; grid-template-columns: 175px minmax(0, 1fr); gap: 18px; align-items: center; min-height: 54px; padding: 8px 4px; border-bottom: 1px solid var(--line); }
.feature-row:last-child { border-bottom: 0; }
.feature-row strong { font-size: 14px; }
.feature-row span { color: var(--text-soft); font-size: 13px; }
.feature-row button { justify-self: end; }

.table-wrap { width: 100%; overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 14px; border-bottom: 1px solid var(--line); font-size: 12px; text-align: left; vertical-align: middle; }
th { color: var(--text-muted); font-size: 10px; font-weight: 600; }
tr:last-child td { border-bottom: 0; }
.cell-title strong, .cell-title span { display: block; }
.cell-title span { margin-top: 3px; color: var(--text-muted); font-size: 10px; }
.badge { display: inline-flex; min-height: 24px; align-items: center; padding: 0 8px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text-soft); font-size: 10px; }
.badge.ready, .badge.collected { border-color: rgba(117, 199, 155, .4); background: rgba(117, 199, 155, .08); color: var(--success); }
.badge.processing { border-color: rgba(228, 183, 93, .4); color: var(--warning); }

.engine-list, .supplier-list { display: grid; gap: 10px; }
.choice-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 15px; border: 1px solid var(--line); border-radius: var(--radius-control); background: var(--surface); }
.choice-row.has-item-image { min-height: 108px; }
.choice-row:hover { border-color: var(--line-strong); }
.choice-row p { margin: 4px 0 0; }
.item-row-main, .table-item { display: flex; min-width: 0; align-items: center; gap: 14px; }
.item-copy { min-width: 0; }
.item-thumbnail { display: grid; width: 76px; height: 76px; flex: 0 0 76px; overflow: hidden; place-items: center; border: 1px solid var(--line); border-radius: 11px; background: radial-gradient(circle at center, #222229, #0a0a0d 72%); }
.item-thumbnail img { display: block; width: 100%; height: 100%; padding: 5px; object-fit: contain; }
.item-thumbnail.placeholder { color: var(--text-muted); font: 700 12px ui-monospace, "Cascadia Mono", monospace; letter-spacing: .08em; }
.item-thumbnail.compact { width: 48px; height: 48px; flex-basis: 48px; border-radius: 8px; }
.item-thumbnail.compact img { padding: 3px; }
.specs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.specs span { padding: 4px 7px; border-radius: 5px; background: var(--surface-raised); color: var(--text-muted); font: 10px ui-monospace, "Cascadia Mono", monospace; }

.customization-group { overflow: hidden; }
.customization-group-head { display: flex; min-height: 58px; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--surface-raised); }
.customization-group-head h2 { margin: 0; }
.customization-group-head span { color: var(--text-muted); font: 10px ui-monospace, "Cascadia Mono", monospace; }
.customization-row { display: grid; grid-template-columns: minmax(210px, 1fr) minmax(220px, .8fr) auto; gap: 12px; align-items: center; min-height: 76px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.customization-row:last-child { border-bottom: 0; }
.customization-copy h3 { margin: 0 0 4px; }
.customization-copy p { margin: 0; color: var(--text-muted); font-size: 11px; line-height: 1.4; }
.customization-cart { overflow: hidden; border-color: var(--accent-border); }
.customization-cart-head, .customization-cart-footer { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 16px; background: var(--accent-soft); }
.customization-cart-head { border-bottom: 1px solid var(--accent-border); }
.customization-cart-head h2, .customization-cart-head p { margin: 0; }
.customization-cart-head p { margin-top: 4px; color: var(--text-muted); font-size: 11px; }
.customization-cart-head > span { color: var(--accent-hover); font: 11px ui-monospace, "Cascadia Mono", monospace; }
.customization-cart-body { padding: 6px 16px; }
.customization-cart-body > .muted { margin: 10px 0; }
.customization-cart-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 12px; align-items: center; min-height: 54px; border-bottom: 1px solid var(--line); }
.customization-cart-row:last-child { border-bottom: 0; }
.customization-cart-row div strong, .customization-cart-row div span { display: block; }
.customization-cart-row div strong { font-size: 13px; }
.customization-cart-row div span { margin-top: 3px; color: var(--text-muted); font-size: 11px; }
.customization-cart-footer { border-top: 1px solid var(--accent-border); }
.customization-cart-footer > strong span { margin-left: 6px; color: var(--accent-hover); }
.customization-approval { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: end; padding: 14px 16px; border-top: 1px solid var(--line); background: var(--surface-raised); }
.customization-approval-status { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 16px; border-top: 1px solid var(--line); background: var(--surface-raised); }
.customization-approval-status p { margin: 6px 0 0; color: var(--text-muted); font-size: 11px; }
.custom-plate-field { display: grid; gap: 5px; }
.custom-plate-field input { font-family: ui-monospace, "Cascadia Mono", monospace; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.custom-plate-field small { color: var(--text-muted); font-size: 10px; }

.diagnostic-layout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.gauge { display: grid; min-height: 178px; place-items: center; padding: 16px; text-align: center; }
.gauge-ring { position: relative; display: grid; width: 106px; height: 106px; place-items: center; border-radius: 50%; background: conic-gradient(var(--accent) calc(var(--value) * 1%), var(--line) 0); }
.gauge-ring::before { content: ""; width: 78px; height: 78px; border-radius: 50%; background: var(--surface); }
.gauge-value { position: absolute; z-index: 1; font: 700 19px ui-monospace, "Cascadia Mono", monospace; }
.gauge-label { margin-top: 10px; color: var(--text-soft); font-size: 12px; }

.color-preview { min-height: 180px; border: 1px solid var(--line); border-radius: var(--radius-panel); background-color: rgb(var(--r), var(--g), var(--b)); box-shadow: inset 0 0 0 5px rgba(255,255,255,.04); }
.rgb-value { font: 600 14px ui-monospace, "Cascadia Mono", monospace; }
.feature-row.mix-row { grid-template-columns: 34px minmax(0, 1fr) auto; gap: 12px; }
.mix-swatch { width: 34px; height: 34px; border: 1px solid rgba(255,255,255,.2); border-radius: 8px; background: rgb(var(--mix-r), var(--mix-g), var(--mix-b)); box-shadow: inset 0 0 0 3px rgba(255,255,255,.06), 0 4px 12px rgba(0,0,0,.2); }
.mix-row .mix-details { text-align: right; }

.empty-state, .error-state, .loading-state { display: grid; min-height: 280px; place-items: center; padding: 32px; text-align: center; }
.state-copy { max-width: 410px; }
.state-copy strong { display: block; margin-bottom: 7px; font-size: 16px; }
.skeleton { width: min(520px, 80%); height: 12px; border-radius: 5px; background: var(--surface-raised); }
.skeleton + .skeleton { width: min(380px, 60%); margin-top: 10px; }
@media (prefers-reduced-motion: no-preference) { .skeleton { animation: pulse 1.25s ease-in-out infinite alternate; } @keyframes pulse { to { opacity: .45; } } }

.work-overlay { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: rgba(4,4,6,.84); }
.work-overlay[hidden] { display: none; }
.work-card { width: min(520px, 90vw); padding: 22px; border: 1px solid var(--line-strong); border-radius: var(--radius-panel); background: var(--surface); box-shadow: 0 24px 80px rgba(2,2,4,.7); }
.work-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.work-head span { color: var(--accent); font: 11px ui-monospace, monospace; }
.stage-track { height: 4px; margin: 17px 0; overflow: hidden; border-radius: 4px; background: var(--line); }
.stage-track span { display: block; width: var(--progress, 0%); height: 100%; background: var(--accent); transition: width 280ms ease; }
.minigame { margin-top: 20px; }
.challenge-game[hidden] { display: none; }
.challenge-instruction { margin: 0 0 12px; color: var(--text-soft); text-align: center; }
.timing-track { position: relative; height: 34px; margin-bottom: 12px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 7px; background: #09090c; }
#timing-target { position: absolute; top: 0; bottom: 0; left: var(--target); width: var(--target-width); background: rgba(117,199,155,.28); border-inline: 1px solid var(--success); }
#timing-cursor { position: absolute; top: 4px; bottom: 4px; left: var(--cursor); width: 3px; border-radius: 3px; background: var(--accent); }
.sequence-display { display: grid; grid-template-columns: repeat(5, minmax(42px, 1fr)); gap: 8px; min-height: 58px; margin-bottom: 14px; }
.sequence-chip { display: grid; min-height: 50px; place-items: center; border: 1px solid var(--line-strong); border-radius: 8px; background: #09090c; color: var(--accent); font: 700 18px ui-monospace, "Cascadia Mono", monospace; }
.sequence-chip.complete { border-color: rgba(117,199,155,.55); background: rgba(117,199,155,.12); color: var(--success); }
.sequence-chip.masked { color: var(--text-muted); }
.sequence-pad { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.sequence-pad button { min-height: 48px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface-raised); color: var(--text); font: 700 16px ui-monospace, "Cascadia Mono", monospace; cursor: pointer; }
.sequence-pad button:hover { border-color: var(--accent); color: var(--accent); }
.sequence-pad button:disabled { cursor: not-allowed; opacity: .4; }
.pressure-label, .spray-meter > div:first-child { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text-soft); font-size: 12px; }
.pressure-label strong, .spray-meter strong { color: var(--text); font: 700 12px ui-monospace, "Cascadia Mono", monospace; }
.pressure-track { position: relative; height: 38px; margin: 8px 0 14px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: #09090c; }
#pressure-target { position: absolute; inset-block: 0; left: var(--pressure-target); width: var(--pressure-width); border-inline: 1px solid var(--success); background: rgba(117,199,155,.22); }
#pressure-needle { position: absolute; top: 4px; bottom: 4px; left: var(--pressure); width: 4px; border-radius: 3px; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.spray-meter { margin-bottom: 10px; }
.meter-track { height: 8px; margin-top: 6px; overflow: hidden; border-radius: 8px; background: var(--line); }
.meter-track span { display: block; width: var(--meter-value, 0%); height: 100%; transition: width 80ms linear; }
.meter-track.success span { background: var(--success); }
.meter-track.danger span { background: var(--danger); }
#spray-button { margin-top: 14px; user-select: none; touch-action: none; }
#spray-button.is-held { border-color: var(--accent-hover); background: var(--accent-hover); transform: scale(.99); }
.toast-root { position: fixed; right: 24px; bottom: 24px; z-index: 30; display: grid; gap: 8px; }
.toast { min-width: 260px; max-width: 380px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-control); background: var(--surface-raised); box-shadow: 0 14px 40px rgba(2,2,4,.5); font-size: 12px; }
.toast.error { border-color: rgba(253,253,150,.55); }
.toast.success { border-color: rgba(117,199,155,.55); }

@media (max-width: 920px) {
    .app { padding: 2vh 2vw; }
    .workspace { grid-template-columns: 186px minmax(0, 1fr); height: 96vh; }
    .sidebar { padding-inline: 10px; }
    .split, .grid-two, .diagnostic-layout { grid-template-columns: 1fr; }
    .grid-three { grid-template-columns: 1fr; }
    .grid-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .content { padding-inline: 18px; }
    .feature-row { grid-template-columns: 140px 1fr; }
    .feature-row.mix-row { grid-template-columns: 34px minmax(0, 1fr); }
    .mix-row .mix-details { grid-column: 2; text-align: left; }
    .customization-row { grid-template-columns: 1fr; }
    .customization-approval { grid-template-columns: 1fr; }
    .app.is-customizing .workspace { width: 96vw; grid-template-columns: 170px minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}