/* Launch interface. Structural rules remain in styles.css; this layer owns the
   shared visual system and responsive refinements for every existing screen. */
:root {
  --background: #111315; --header-bg: #17191c; --workbench: #111315;
  --surface: #1c1f23; --surface-raised: #22262b; --surface-soft: #282d33;
  --panel: #1c1f23; --panel-strong: #171a1d; --input: #171a1d;
  --text: #f1f2f4; --muted: #a8afb9; --line: #343a42; --line-strong: #626c79;
  --accent: #ef573c; --accent-strong: #ff846d; --accent-soft: #39251f; --accent-text: #fff;
  --success: #8fd1b1; --success-soft: #21382c; --warning: #e6c280; --warning-soft: #393122;
  --danger: #ff9c98; --danger-soft: #402726; --focus: #ffa591;
  --shadow: none; --panel-shadow: none; --inner-rail: none;
  --radius: 12px;
}
:root[data-theme="light"] {
  --background: #f3f4f5; --header-bg: #fff; --workbench: #f3f4f5;
  --surface: #fff; --surface-raised: #f7f8f9; --surface-soft: #eceef1;
  --panel: #fff; --panel-strong: #f7f8f9; --input: #fff;
  --text: #20252b; --muted: #596470; --line: #d8dde3; --line-strong: #a0aab6;
  --accent: #b73520; --accent-strong: #b73520; --accent-soft: #fbeae5; --accent-text: #fff;
  --success: #246749; --success-soft: #e2f1e8; --warning: #765418; --warning-soft: #fbf0d9;
  --danger: #ad322d; --danger-soft: #fbe9e7; --focus: #ad322d;
  --shadow: none; --panel-shadow: none; --inner-rail: none;
}
html { scroll-padding-block: 24px 110px; }
body, :root[data-theme="light"] body { background: var(--background); font-size: 15px; line-height: 1.55; }
button, input, select, textarea { font-size: 0.9375rem; }
h1, h2, h3, h4 { font-weight: 650; letter-spacing: -.025em; }
h2 { font-size: clamp(1.65rem, 4vw, 2.15rem); line-height: 1.2; }
h3 { font-size: 1.1rem; }
p { line-height: 1.6; }
button { white-space: normal; overflow-wrap: anywhere; }
button, a, summary, input, select, textarea, [tabindex] { touch-action: manipulation; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
input, select, textarea, :root[data-theme="light"] input, :root[data-theme="light"] select, :root[data-theme="light"] textarea {
  min-width: 0; min-height: 48px; padding: 11px 13px; border: 1px solid var(--line-strong);
  border-radius: 8px; background: var(--input); color: var(--text); box-shadow: none;
}
input[type="checkbox"], input[type="radio"] { flex: 0 0 20px; min-height: 20px; padding: 0; }
textarea { min-height: 88px; }
label, .form-grid label { font-size: .84rem; font-weight: 550; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .85; }
.section-label { color: var(--muted); font-size: .68rem; font-weight: 650; letter-spacing: .14em; margin-bottom: 7px; }
.app-header, :root[data-theme="light"] .app-header {
  display: grid; grid-template-columns: 160px 1fr auto; align-items: center; gap: 16px;
  padding: 10px max(24px, calc((100vw - 1160px) / 2)); background: var(--header-bg);
  border-bottom: 1px solid var(--line); box-shadow: none;
}
.brand-banner, :root[data-theme="light"] .brand-banner {
  min-height: 0; width: 112px; height: 72px; margin: 0; padding: 0;
  border: 0; border-radius: 6px; background: #000;
}
.brand-banner-image { width: 112px; height: 72px; max-height: none; object-fit: cover; }
.brand-banner h1 { font-size: 1rem; }
.brand-banner-kicker, .brand-banner-subtitle { display: none; }
.main-menu { width: fit-content; gap: 5px; margin: 0 auto; }
.menu-button, :root[data-theme="light"] .menu-button {
  min-height: 46px; padding: 9px 18px; gap: 8px; border: 1px solid transparent; border-radius: 8px;
  background: transparent; color: var(--muted); box-shadow: none; font-size: .87rem;
  font-weight: 550; text-transform: none; transition: none;
}
.menu-button:hover, .menu-button.active, :root[data-theme="light"] .menu-button.active {
  background: var(--surface-soft); color: var(--text); border-color: transparent; box-shadow: none; transform: none;
}
.menu-button.active { color: var(--accent-strong); }
.nav-icon { width: 19px; height: 19px; flex-shrink: 0; }
.account-bar { position: static; max-width: 180px; }
.account-status, :root[data-theme="light"] .account-status {
  padding: 4px 0; background: none; border: 0; box-shadow: none; font-size: .75rem; font-weight: 500;
}
.app-sponsor-slot { grid-column: 1 / -1; width: 100%; max-width: 680px; margin: 0 auto; }
.affiliate-offer-headline { font-weight: 700; color: var(--accent-strong); }
.affiliate-description, .affiliate-conditions, .affiliate-redemption, .affiliate-expiration { overflow-wrap: anywhere; }
.affiliate-conditions, .affiliate-expiration { font-size: .85rem; color: var(--muted); }
.affiliate-copy-actions { padding: 0 18px 18px; }
.affiliate-copy-code { min-height: 44px; padding: 8px 14px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface-raised); color: var(--text); font: inherit; cursor: pointer; }
.affiliate-copy-status { font-size: .85rem; margin: 8px 0 0; }
.app-sponsor-slot::before { content: "ADVERTISEMENT"; display: block; margin-bottom: 4px; color: var(--muted); font-size: 9px; letter-spacing: .12em; text-align: center; }
.sponsor-banner-frame, .remote-sponsor-card .sponsor-banner-frame { border-radius: 6px; }
.screen { width: min(calc(100% - 48px), 1160px); margin: 32px auto 48px; }
.screen-heading, .detail-header { padding: 0; margin-bottom: 24px; border: 0; border-radius: 0; background: none; box-shadow: none; overflow: visible; }
.screen-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.screen-heading::before, .detail-header::before, .profile-card::before, .part-card::before,
.option-card::before, .option-card::after, .settings-menu-card::before, .empty-state::before,
.panel::before, .settings-card::before { display: none; }
.panel, .settings-card, .profile-card, .part-card, .option-card, .quick-list-item-card,
.settings-menu-card, .quick-list-control-card, .account-session, .danger-zone, .dialog-card,
.login-card, .empty-state, .vehicle-quick-notes-panel, .create-profile-panel,
:root[data-theme="light"] :is(.panel, .settings-card, .profile-card, .part-card, .option-card, .quick-list-item-card,
.settings-menu-card, .quick-list-control-card, .account-session, .danger-zone, .dialog-card, .login-card, .empty-state) {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: none;
}
.panel, .settings-card { padding: 22px; }
.panel.list-panel { padding: 0; border: 0; background: none; }
:root[data-theme="light"] .panel.list-panel { padding: 0; border: 0; background: none; }
.parts-toolbar { min-height: 32px; padding: 0 0 8px; border-bottom: 0; gap: 12px; }
.parts-toolbar h3::before { display: none; }
.card-list, .part-list, .quick-note-list, .option-grid { gap: 14px; padding-top: 8px; }
.profile-card, .option-card { padding: 20px; transition: none; }
.profile-card:hover, .option-card:hover, .settings-menu-card:hover { border-color: var(--line-strong); transform: none; box-shadow: none; }
.card-title, .part-name, .cart-item-name, .quick-list-item-name { font-weight: 650; line-height: 1.35; }
.card-title-row .card-title { flex-basis: 100%; }
.card-meta, .part-details { font-size: .8rem; gap: 8px 18px; }
.card-meta strong, .part-details strong { font-weight: 500; color: var(--muted); }
.card-notes, .part-notes { color: var(--muted); font-size: .87rem; font-weight: 400; }
.vehicle-card-photo { height: 160px; background: var(--panel-strong); }
.vehicle-header-photo { width: 120px; height: 90px; float: right; }
.detail-header:has(.vehicle-header-photo:not([hidden])) { display: block; min-height: 100px; }
.vehicle-header-photo .attachment-thumbnail-button img { height: 90px; object-fit: cover; }
.summary-grid { gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); margin-bottom: 24px; }
.summary-card { display: flex; flex-direction: column; gap: 8px; border: 0; border-radius: 0; padding: 18px 20px; background: var(--panel); box-shadow: none; }
.summary-card::before, .summary-card::after { display: none; }
.summary-card strong { font-size: clamp(1.25rem, 2.2vw, 1.75rem); font-weight: 650; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.status-pill, .category-pill, .layout-pill, .count-pill, .guided-section-pill { border: 0; min-height: 24px; padding: 3px 8px; font-weight: 500; font-size: .7rem; }
.part-title-row .part-name { flex-basis: 100%; margin-bottom: 3px; }
.part-card { grid-template-columns: minmax(0, 1fr); padding: 20px; gap: 16px; }
.part-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.part-actions .small-button { width: auto; }
.part-actions .is-danger { margin-left: auto; }
.detail-header > .card-title { font-size: 1.65rem; }
.detail-header > :is(.status-pill, .layout-pill) { justify-self: start; width: fit-content; }
.list-mode-parts-toolbar { display: flex; align-items: center; }
.quick-item-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 10px; }
.quick-item-actions .small-button { padding-inline: 10px; border-color: transparent; background: none; color: var(--muted); }
.capture-numbers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.part-link { min-height: 44px; display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; font-size: .86rem; font-weight: 600; text-underline-offset: 4px; }
.primary-button, .ghost-button, .small-button, .danger-button,
.quick-list-actions .primary-button, .quick-list-actions .ghost-button,
:root[data-theme="light"] :is(.primary-button, .ghost-button, .small-button, .danger-button) {
  min-height: 44px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--surface-raised); color: var(--text); box-shadow: none; font-weight: 600;
  font-size: .84rem; line-height: 1.4; transform: none; transition: none;
}
.primary-button, .quick-list-actions .primary-button, :root[data-theme="light"] .primary-button {
  background: var(--accent); color: var(--accent-text); border-color: var(--accent);
}
/* Dark mode primary buttons use dark ink for readable contrast on vermilion. */
:root:not([data-theme="light"]) .primary-button { color: #180a07; }
.primary-button:hover, .ghost-button:hover, .small-button:hover { filter: brightness(1.1); box-shadow: none; transform: none; }
.ghost-button { background: transparent; }
.danger-button, .small-button.is-danger, :root[data-theme="light"] .danger-button { color: var(--danger); background: transparent; border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); }
.back-button { justify-self: start; margin-bottom: 22px; padding-left: 0; border-color: transparent; background: none; color: var(--muted); }
.back-button::before { content: "←"; margin-right: 8px; }
.form-grid, .form-grid fieldset { gap: 18px; }
.form-field { display: grid; gap: 7px; min-width: 0; align-content: start; }
.form-field input, .form-field textarea, .form-field select { width: 100%; }
.form-header { padding-bottom: 0; border: 0; }
.form-header h3 { font-size: 1.2rem; }
.required-label { font-size: .73rem; color: var(--muted); font-weight: 400; }
.field-help, .settings-note, .field-note, .layout-description { font-size: .8rem; font-weight: 400; }
.field-error { margin: 0; color: var(--danger); font-size: .82rem; }
[aria-invalid="true"] { border-color: var(--danger); }
.optional-details { display: block; padding-block: 12px; border-block: 1px solid var(--line); }
.optional-details > summary { min-height: 36px; cursor: pointer; color: var(--muted); font-size: .84rem; font-weight: 550; }
.optional-details[open] { display: grid; gap: 18px; }
.photo-control, .build-media-form { padding: 16px; background: var(--panel-strong); border: 1px solid var(--line); border-radius: 8px; }
.photo-control legend { font-size: .8rem; padding: 0 5px; color: var(--muted); }
.photo-message:empty { display: none; }
.photo-action-row { display: flex; flex-wrap: wrap; gap: 8px; }
.photo-action-row button { flex: 1 1 120px; }
.create-profile-summary { min-height: 44px; font-size: 1rem; font-weight: 600; }
.create-profile-summary::after { content: "+"; background: none; color: var(--muted); }
.create-profile-panel[open] .create-profile-summary::after { content: "−"; }
.create-profile-form { border-top: 1px solid var(--line); margin-top: 16px; padding-top: 24px; }
.create-profile-form > .form-header { display: none; }
.section-context { padding: 8px 0; background: none; border: 0; color: var(--muted); font-size: .8rem; font-weight: 400; }
.empty-state { padding: 32px 24px; font-size: .92rem; font-weight: 400; border-style: dashed; }
.empty-state strong { display: block; color: var(--text); font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.empty-state button { display: block; margin: 18px auto 0; }
.builds-stack, .quick-notes-stack { gap: 24px; }
.menu-section { margin-bottom: 28px; }
.quick-list-control-card { border: 0; padding: 0 0 20px; background: none; }
:root[data-theme="light"] .quick-list-control-card { background: none; border: 0; }
.quick-list-control-heading h2 { font-size: clamp(1.65rem, 4vw, 2.15rem); }
.quick-list-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.quick-list-actions .primary-button, .quick-list-actions .ghost-button { width: auto; padding-inline: 16px; }
.quick-list-actions .primary-button { margin-right: auto; }
.quick-list-cost-summary { padding: 10px 0; background: none; border: 0; font-weight: 500; font-size: .85rem; }
.quick-list-item-card { padding: 18px; gap: 14px; }
.quick-list-item-name { display: block; -webkit-line-clamp: unset; font-size: 1rem; white-space: normal; overflow: visible; overflow-wrap: anywhere; }
.quick-list-item-meta-grid { gap: 6px 16px; margin-top: 8px; }
.quick-list-meta { font-weight: 400; font-size: .78rem; }
.quick-list-meta strong { font-weight: 500; }
.quick-list-meta-left, .quick-list-meta-right, .quick-list-cost { max-width: none; }
.quick-list-meta span { white-space: normal; overflow: visible; overflow-wrap: anywhere; }
.quick-list-check-button { width: 44px; height: 44px; min-height: 44px; align-self: center; background: var(--success-soft); color: var(--success); box-shadow: none; font-size: 1.2rem; }
.quick-list-check-button:hover { background: var(--success-soft); filter: brightness(1.1); }
.quick-list-item-card.is-done { opacity: 1; }
.cart-heading .section-label { max-width: 300px; }
.cart-vehicle-select { min-width: 180px; font-size: .8rem; }
.cart-controls { display: grid; gap: 20px; }
.cart-view-modes { width: fit-content; padding: 4px; gap: 2px; background: var(--panel-strong); border-radius: 8px; }
.cart-view-modes .small-button { border: 0; background: none; font-weight: 500; padding: 8px 14px; }
.cart-view-modes .is-active { background: var(--surface-soft); color: var(--text); box-shadow: none; }
.cart-filters { gap: 14px; }
.cart-filters label { display: grid; gap: 6px; }
.cart-filters { grid-template-columns: 1fr; }
.cart-filter-details > summary { min-height: 44px; padding-block: 10px; color: var(--muted); cursor: pointer; font-size: .84rem; }
.cart-filter-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding-top: 12px; }
.cart-selection-bar { padding: 20px; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.cart-selection-summary { font-weight: 600; }
.cart-selection-bar { padding: 16px 0 0; border: 0; border-top: 1px solid var(--line); border-radius: 0; background: none; }
.cart-selection-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cart-selection-actions button { padding-inline: 8px; font-size: .78rem; }
.cart-action-message:empty { display: none; }
.cart-checkout-actions { display: grid; grid-template-columns: minmax(0, 1fr); }
#startCartCheckoutButton { width: 100%; height: 3.25rem; }
#startCartCheckoutButton:disabled {
  background: var(--surface-soft); color: var(--muted); border-color: var(--line-strong);
  opacity: 1; cursor: not-allowed; filter: none;
}
.cart-checkout-help { margin: 0; color: var(--muted); font-size: .8rem; }
/* Reserve the helper row so selection changes do not resize the primary action. */
:root[data-theme="light"] .summary-card { background: var(--panel); }
.cart-summary strong, .cart-item-price strong { font-variant-numeric: tabular-nums; }
.cart-item-row { padding: 18px 16px; }
.cart-group-summary { padding: 16px; background: var(--panel); }
.cart-group-checkout { padding: 14px 16px; gap: 8px 16px; }
.cart-item-meta { font-size: .78rem; }
.cart-item-price { overflow-wrap: anywhere; min-width: 0; }
.cart-item-price span { font-size: .75rem; }
.checkout-launch-result, .checkout-current { border-top: 1px solid var(--line); padding: 24px; }
.checkout-launch-result h3 { font-size: 1.5rem; }
.checkout-result-actions { margin-top: 12px; }
.checkout-queue-button { min-height: 48px; font-weight: 500; }
.settings-menu-card { padding: 22px; min-height: 100px; }
.settings-menu-card strong { font-weight: 600; font-size: 1.02rem; }
.settings-menu-card small { max-width: 440px; line-height: 1.5; }
.settings-menu-card > span:last-child { background: none; color: var(--muted); }
.settings-section-stack { max-width: 820px; }
.account-subsection { padding: 20px; gap: 18px; }
.danger-zone { margin-top: 24px; border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); }
.login-page, :root[data-theme="light"] .login-page { background: var(--background); padding: 32px 20px; }
.login-card { max-width: 460px; padding: 32px; gap: 24px; }
.login-brand { border: 0; padding: 0; justify-content: flex-start; }
.login-brand-img { width: 192px; height: 130px; max-height: none; margin: 0; object-fit: cover; border-radius: 8px; background: #000; }
.login-card h2 { font-weight: 650; line-height: 1.25; font-size: 1.75rem; }
.login-card > section { gap: 16px; }
.login-card .form-grid { gap: 18px; }
.login-card .primary-button, .login-card .ghost-button { font-weight: 600; line-height: 1.4; }
.auth-note { font-size: .9rem; }
.auth-message, .settings-message { font-weight: 500; }
.dialog-backdrop { align-items: center; padding: 24px; background: #000a; z-index: 100; }
.dialog-card { width: min(100%, 520px); padding: 26px; gap: 22px; max-height: calc(100dvh - 48px); overflow-y: auto; overscroll-behavior: contain; }
.dialog-card h2 { font-size: 1.5rem; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 8px; }
.dialog-actions > button { flex: 1 1 140px; }
.image-viewer-card { width: min(100%, 900px); }
.interface-status { position: fixed; z-index: 95; bottom: 20px; left: 50%; transform: translateX(-50%); max-width: calc(100% - 40px); padding: 10px 18px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface-raised); color: var(--text); font-size: .85rem; }
.interface-status:empty { display: none; }
@media (min-width: 760px) {
  #profileList { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .option-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .create-profile-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .create-profile-form > :is(.optional-details, .field-help) { grid-column: 1 / -1; }
  .create-profile-form > button { justify-self: start; }
  .settings-menu-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quick-list-item-meta-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 760px; }
  .layout-grid { grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); gap: 28px; }
  .quick-list-control-card { grid-template-columns: 1fr auto; align-items: center; }
  .quick-list-cost-summary, .quick-arrange-hint { grid-column: 1 / -1; }
}
@media (max-width: 759px) {
  .app-shell { padding-bottom: calc(90px + env(safe-area-inset-bottom)); }
  .app-header, :root[data-theme="light"] .app-header { grid-template-columns: 1fr auto; padding: 10px 20px; gap: 10px; }
  .brand-banner, :root[data-theme="light"] .brand-banner { width: 92px; height: 60px; }
  .brand-banner-image { width: 92px; height: 60px; }
  .account-bar { grid-column: 2; grid-row: 1; max-width: 160px; }
  .main-menu { position: fixed; z-index: 50; inset: auto 0 0; width: 100%; padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: var(--header-bg); gap: 4px; }
  .menu-button, :root[data-theme="light"] .menu-button { min-height: 54px; display: flex; flex-direction: column; gap: 4px; padding: 6px 4px; font-size: .69rem; border-radius: 8px; }
  .menu-button.active, :root[data-theme="light"] .menu-button.active { color: var(--accent-strong); background: var(--accent-soft); }
  .nav-icon { width: 21px; height: 21px; }
  .screen { width: calc(100% - 32px); margin: 24px auto 28px; }
  .screen-heading { margin-bottom: 24px; }
  .panel, .settings-card { padding: 18px; }
  .card-list { gap: 14px; }
  .profile-card { padding: 18px; }
  .summary-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .summary-card { padding: 14px 10px; }
  .summary-card strong { font-size: clamp(1rem, 4vw, 1.3rem); }
  .summary-card span, .summary-card p { font-size: .7rem; }
  .part-actions .small-button { padding: 9px 12px; font-size: .78rem; }
  .cart-heading { display: grid; }
  .cart-vehicle-select { width: 100%; }
  #cartVehicleCard { display: none; }
  .cart-view-modes { width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .cart-view-modes .small-button { padding-inline: 6px; font-size: .76rem; }
  .cart-filters { grid-template-columns: 1fr; }
  .cart-filters .cart-search { grid-column: 1 / -1; }
  .cart-group-checkout { grid-template-columns: minmax(0, 1fr); }
  .cart-group-checkout button { grid-column: 1; grid-row: auto; }
  .cart-item-row { grid-template-columns: 24px minmax(0, 1fr) minmax(60px, 90px); gap: 10px; padding: 16px 12px; }
  .cart-item-row > .small-button { grid-column: 2 / -1; justify-self: start; }
  .checkout-primary-actions { grid-template-columns: 1fr; }
  .checkout-result-actions { grid-template-columns: 1fr; }
  .dialog-backdrop { padding: 16px; }
  .dialog-card { padding: 22px 18px; max-height: calc(100dvh - 32px); }
  .quick-list-item-card { padding: 16px; gap: 10px; }
  .quick-list-item-content { gap: 10px; }
  .quick-list-item-meta-grid { grid-template-columns: 1fr; gap: 5px; }
  .quick-list-item-meta-grid > * { grid-column: 1; text-align: left; }
  .quick-list-check-button { width: 44px; }
  .quick-list-photo-slot { width: 56px; height: 56px; }
  .build-media-gallery { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .login-card { padding: 24px; }
  .interface-status { bottom: calc(86px + env(safe-area-inset-bottom)); }
  html.native-android .app-shell { padding-bottom: calc(90px + var(--native-bottom) + var(--native-edit-space)); }
  html.native-android .main-menu { padding-bottom: calc(8px + var(--native-bottom)); padding-left: max(12px, var(--native-left)); padding-right: max(12px, var(--native-right)); }
  html.native-keyboard-open .main-menu { display: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
/* Product details remain secondary to the editable capture form. */
.product-link-help, .product-lookup-status { margin: 6px 0 0; font-size: .78rem; line-height: 1.5; color: var(--muted); }
.product-lookup-status:empty { display: none; }
.product-lookup-status { min-height: 1.5em; }

/* Affiliates uses the same surfaces and color tokens as the rest of the app. */
.main-menu { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.affiliate-intro, .affiliate-website p, .affiliate-sponsors-heading p, .affiliate-status { color: var(--muted); }
.affiliate-website { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-color: var(--line); }
.affiliate-website h3 { font-size: 1.35rem; }
.affiliate-website p { margin: 8px 0 0; }
.affiliate-website .primary-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; text-decoration: none; flex-shrink: 0; }
.affiliate-sponsors-heading { margin: 32px 0 20px; }
.affiliate-sponsors-heading p { margin: 6px 0 0; }
.affiliate-status:empty { display: none; }
.affiliates-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.affiliate-card { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.affiliate-card-link { display: flex; flex: 1; flex-direction: column; color: var(--text); text-decoration: none; overflow-wrap: anywhere; }
.affiliate-card-link:hover { background: var(--surface-raised); }
.affiliate-card-link:focus-visible { outline-offset: -4px; }
.affiliate-artwork { display: block; width: 100%; aspect-ratio: 3 / 1; object-fit: contain; background: var(--surface-raised); }
.affiliate-artwork[hidden] { display: none; }
.affiliate-details { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; padding: 22px; flex: 1; }
.affiliate-details h3, .affiliate-details p { margin: 0; }
.affiliate-coupon { padding: 5px 10px; border: 1px dashed var(--line-strong); border-radius: 6px; font-size: .85rem; }
.affiliate-disclosure { color: var(--muted); font-size: .8rem; }
.affiliate-visit { color: var(--accent-strong); font-weight: 600; margin-top: auto; padding-top: 8px; }
@media (max-width: 759px) {
  .affiliate-website { align-items: stretch; flex-direction: column; gap: 20px; }
  .affiliates-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .affiliate-details { padding: 18px; }
}
/* Focused Cart and shared-copy refinements. */
.cart-heading { display: flex; flex-direction: row; flex-wrap: wrap; align-items: end; gap: 10px 16px; margin-bottom: 14px; }
.cart-heading > div:first-child { margin-right: auto; }
.cart-heading h2 { margin: 0; }
.cart-heading .cart-vehicle-select { width: min(100%, 320px); }
.cart-controls { gap: 12px; padding: 14px 18px; }
.cart-summary { gap: 4px 16px; }
.cart-summary > div { padding: 0; border: 0; background: none; }
.cart-summary strong { font-size: 1.08rem; }
.cart-attention-button { min-height: 24px; padding: 0; border: 0; background: none; font-size: .78rem; font-weight: 500; }
.cart-filters { grid-template-columns: minmax(0, 1fr) 170px auto; gap: 8px 12px; align-items: end; }
.cart-filters .cart-search { grid-column: auto; }
.cart-filter-tools { display: flex; flex-wrap: wrap; gap: 2px 8px; }
.cart-filter-tools button { padding: 8px; min-height: 44px; }
.cart-filter-fields { grid-column: 1 / -1; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; padding: 0; }
.cart-selection-bar { padding-top: 10px; gap: 8px 16px; grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
.cart-checkout-actions { display: flex; align-items: center; gap: 8px; }
.cart-checkout-actions button { flex: 0 1 auto; }
#startCartCheckoutButton { width: auto; height: auto; min-height: 44px; }
#openAllCartLinksButton { font-size: .78rem; padding: 8px; }
.cart-checkout-help, .cart-checkout-notice, .cart-action-message { grid-column: 1 / -1; }
.cart-list-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 4px 12px; margin-bottom: 8px; }
.cart-list-toolbar .cart-results-meta { margin: 0; }
.cart-selection-actions { display: flex; gap: 4px 12px; }
.cart-selection-actions button { flex: 0 1 auto; min-height: 40px; padding: 5px 0; }
#cartScreen .cart-selection-actions button { border: 0; background: none; padding: 5px 0; font-size: .75rem; }
#openAllCartLinksButton:disabled { display: none; }
.garage-add-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.shared-build-badge { display: inline-block; padding: 3px 9px; border-radius: 5px; background: #203b5f; color: #b5d9ff; border: 1px solid #6497d0; font-size: .75rem; font-weight: 650; }
.profile-card.is-shared-build, .detail-header.is-shared-build { border-left: 3px solid #80baff; padding-left: 16px; }
#cartScreen.is-shared-build .cart-controls { border-left: 3px solid #80baff; }
:root[data-theme="light"] .shared-build-badge { color: #154f8c; background: #e9f3ff; border-color: #397cc5; }
:root[data-theme="light"] .profile-card.is-shared-build,
:root[data-theme="light"] .detail-header.is-shared-build,
:root[data-theme="light"] #cartScreen.is-shared-build .cart-controls { border-left-color: #286bb1; }
#sharedBuildPreview { overflow-wrap: anywhere; padding: 12px; background: var(--surface-soft); border-left: 3px solid #6497d0; }
#sharedBuildPreview p { white-space: pre-wrap; }
#shareBuildDialog .dialog-card, #importSharedBuildDialog .dialog-card { display: grid; gap: 12px; }
#shareBuildDialog p, #importSharedBuildDialog p { margin: 0; }
#sharedBuildFileInput { width: 100%; }
@media (max-width: 700px) {
  #cartScreen { margin-top: 16px; }
  .cart-heading { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
  .cart-heading .cart-vehicle-select { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 8px; width: 100%; grid-column: 1 / -1; grid-row: 2; }
  .cart-heading .cart-vehicle-select select { margin-top: 0; }
  #shareCartBuildButton { grid-column: 2; grid-row: 1; }
  .cart-controls { padding: 12px; gap: 8px; }
  .cart-filters { grid-template-columns: minmax(0, 1fr) 125px; }
  .cart-filters .cart-search { grid-column: auto; }
  .cart-filter-tools { grid-column: 1 / -1; }
  .cart-filter-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cart-selection-bar { grid-template-columns: minmax(0, 1fr) auto; gap: 6px; }
  .cart-selection-summary { grid-column: 1; grid-row: 1; font-size: .78rem; }
  .cart-checkout-actions { display: contents; }
  #startCartCheckoutButton { width: 100%; grid-column: 1 / -1; grid-row: 2; }
  #openAllCartLinksButton { grid-column: 2; grid-row: 1; min-height: 36px; max-width: 115px; padding: 4px; font-size: .7rem; }
  .cart-checkout-help { font-size: .75rem; }
  .cart-summary strong { font-size: .95rem; }
}