/**
 * Laptop upgrade configurator — compact cards + detail page
 */

.laptop-upgrade-container {
    margin: 0.25rem 0 0;
    min-width: 0;
}

.laptop-upgrade-container.detail-page-upgrades {
    margin: 0 0 1rem;
}

/* ── Panel shell ── */
.upgrade-configurator {
    --uc-accent: #dc2626;
    --uc-accent-soft: rgba(220, 38, 38, 0.1);
    --uc-border: #e5e7eb;
    --uc-bg: #fafafa;
    --uc-text: #1e293b;
    --uc-muted: #64748b;
    position: relative;
    border-radius: 0.875rem;
    border: 1px solid var(--uc-border);
    background: linear-gradient(180deg, #ffffff 0%, var(--uc-bg) 100%);
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.dark .upgrade-configurator {
    --uc-border: #4b5563;
    --uc-bg: #262626;
    --uc-text: #f1f5f9;
    --uc-muted: #94a3b8;
    background: linear-gradient(180deg, #333333 0%, #2a2a2a 100%);
}

.upgrade-configurator.is-active {
    border-color: #fca5a5;
}

/* ── Card mode (product shelf / grid) ── */
.upgrade-configurator--card {
    border-radius: 0.4rem;
    box-shadow: none;
    border-color: #eef2f7;
}

.dark .upgrade-configurator--card {
    border-color: #404040;
}

.upgrade-configurator--card.is-collapsed {
    background: transparent;
    border-color: transparent;
}

.upgrade-configurator--card.is-collapsed.has-custom {
    border-color: #fecaca;
    background: rgba(254, 242, 242, 0.35);
}

.dark .upgrade-configurator--card.is-collapsed.has-custom {
    border-color: #7f1d1d;
    background: rgba(127, 29, 29, 0.12);
}

/* Toggle bar (collapsed default) */
.upgrade-configurator__toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    width: 100%;
    padding: 0.18rem 0.3rem;
    margin: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    color: inherit;
    font: inherit;
    text-align: inherit;
    line-height: 1.2;
}

.upgrade-configurator__toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--uc-muted);
    flex-shrink: 0;
}

.upgrade-configurator__toggle-label i {
    font-size: 0.55rem;
    color: var(--uc-accent);
}

.upgrade-configurator__summary {
    flex: 1;
    min-width: 0;
    font-size: 0.52rem;
    font-weight: 600;
    color: #475569;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: end;
}

.dark .upgrade-configurator__summary {
    color: #94a3b8;
}

.upgrade-configurator--card.has-custom .upgrade-configurator__summary {
    color: var(--uc-accent);
}

.upgrade-configurator__chevron {
    flex-shrink: 0;
    font-size: 0.45rem;
    color: var(--uc-muted);
    transition: transform 0.2s ease;
}

.upgrade-configurator--card:not(.is-collapsed) .upgrade-configurator__chevron {
    transform: rotate(180deg);
}

.upgrade-configurator--card.is-collapsed .upgrade-configurator__body {
    display: none;
}

.upgrade-configurator--card:not(.is-collapsed) {
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    border-color: var(--uc-border);
}

.dark .upgrade-configurator--card:not(.is-collapsed) {
    background: linear-gradient(180deg, #333333 0%, #2a2a2a 100%);
}

.upgrade-configurator--card:not(.is-collapsed) .upgrade-configurator__body {
    padding: 0 0.28rem 0.28rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.upgrade-configurator--card .upgrade-configurator__header {
    display: none;
}

.upgrade-configurator--card .upgrade-spec-row--compact {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.2rem;
    min-width: 0;
}

.upgrade-configurator--card .upgrade-spec-inline-label {
    flex: 0 0 auto;
    width: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--uc-muted);
    font-size: 0.55rem;
    opacity: 0.85;
}

.upgrade-configurator--card .upgrade-carousel {
    position: relative;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    container-type: inline-size;
}

.upgrade-configurator--card .upgrade-carousel::before,
.upgrade-configurator--card .upgrade-carousel::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 12px;
    z-index: 2;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.upgrade-configurator--card .upgrade-carousel::before {
    right: 0;
    background: linear-gradient(to left, #fafafa 30%, transparent);
}

.upgrade-configurator--card .upgrade-carousel::after {
    left: 0;
    background: linear-gradient(to right, #fafafa 30%, transparent);
}

.dark .upgrade-configurator--card .upgrade-carousel::before {
    background: linear-gradient(to left, #2a2a2a 30%, transparent);
}

.dark .upgrade-configurator--card .upgrade-carousel::after {
    background: linear-gradient(to right, #2a2a2a 30%, transparent);
}

.upgrade-configurator--card .upgrade-carousel.is-at-start::before {
    opacity: 0;
}

.upgrade-configurator--card .upgrade-carousel.is-at-end::after {
    opacity: 0;
}

.upgrade-configurator--card .upgrade-chip-track {
    flex: 1;
    min-width: 0;
    gap: 0.2rem;
    padding: 0.05rem 0;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    cursor: grab;
    touch-action: pan-x;
    -webkit-overflow-scrolling: touch;
}

.upgrade-configurator--card .upgrade-chip-track.is-dragging {
    cursor: grabbing;
    scroll-snap-type: none;
}

.upgrade-configurator--card .upgrade-chip {
    min-height: 1.25rem;
    flex: 0 0 calc(100cqw / 3 - 0.14rem);
    width: calc(100cqw / 3 - 0.14rem);
    max-width: calc(100cqw / 3 - 0.14rem);
    padding: 0.1rem 0.15rem;
    border-radius: 0.32rem;
    border-width: 1px;
    flex-direction: row;
    scroll-snap-align: start;
}

.upgrade-configurator--card .upgrade-chip__cap {
    font-size: 0.58rem;
    font-weight: 700;
    line-height: 1;
}

.upgrade-configurator--card .upgrade-chip__meta {
    display: none !important;
}

.upgrade-configurator--card .upgrade-fixed-inline {
    flex: 1;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.12rem 0.35rem;
    border-radius: 0.35rem;
    border: 1px dashed #fdba74;
    background: #fff7ed;
    color: #9a3412;
    font-size: 0.58rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dark .upgrade-configurator--card .upgrade-fixed-inline {
    background: rgba(154, 52, 18, 0.15);
    border-color: #ea580c;
    color: #fdba74;
}

.upgrade-configurator--card .upgrade-fixed-inline i {
    font-size: 0.5rem;
    opacity: 0.85;
}

/* ── Detail page mode ── */
.upgrade-configurator--detail .upgrade-configurator__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--uc-border);
    background: rgba(255, 255, 255, 0.6);
}

.dark .upgrade-configurator--detail .upgrade-configurator__header {
    background: rgba(0, 0, 0, 0.15);
}

.upgrade-configurator--detail .upgrade-configurator__title {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.03em;
    color: var(--uc-text);
    margin: 0;
}

.upgrade-configurator--detail .upgrade-configurator__title i {
    color: var(--uc-accent);
    font-size: 0.75rem;
}

.upgrade-configurator--detail .upgrade-configurator__body {
    padding: 1rem 1.1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.upgrade-configurator--detail.is-active {
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.12);
}

.upgrade-configurator__delta {
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: var(--uc-accent-soft);
    color: var(--uc-accent);
    white-space: nowrap;
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.upgrade-configurator__delta.visible {
    opacity: 1;
    transform: scale(1);
}

/* ── Spec row (detail) ── */
.upgrade-spec-row {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.upgrade-spec-row__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
}

.upgrade-spec-row__label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.62rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--uc-muted);
}

.upgrade-spec-row__badge {
    font-size: 0.58rem;
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
    background: #f1f5f9;
    color: #475569;
    white-space: nowrap;
}

.dark .upgrade-spec-row__badge {
    background: #374151;
    color: #cbd5e1;
}

.upgrade-spec-row__badge--fixed {
    background: #fff7ed;
    color: #c2410c;
}

.dark .upgrade-spec-row__badge--fixed {
    background: rgba(194, 65, 12, 0.2);
    color: #fdba74;
}

/* ── Chip track ── */
.upgrade-chip-track {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.35rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.15rem 0.1rem 0.25rem;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.upgrade-chip-track::-webkit-scrollbar {
    display: none;
}

.upgrade-configurator--detail .upgrade-chip-track {
    flex-wrap: wrap;
    overflow-x: visible;
    cursor: default;
}

/* ── Chips ── */
.upgrade-chip {
    flex: 0 0 auto;
    scroll-snap-align: center;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
    min-width: 3.5rem;
    padding: 0.35rem 0.55rem;
    border-radius: 0.55rem;
    border: 1.5px solid #e2e8f0;
    background: #ffffff;
    color: #334155;
    cursor: pointer;
    user-select: none;
    transition: border-color 0.15s ease, background 0.15s ease, transform 0.1s ease;
    touch-action: manipulation;
}

.dark .upgrade-chip {
    background: #3a3a3a;
    border-color: #555555;
    color: #e2e8f0;
}

.upgrade-chip:hover:not(.is-fixed) {
    border-color: #fca5a5;
}

.upgrade-chip.is-selected {
    border-color: var(--uc-accent);
    background: var(--uc-accent-soft);
}

.dark .upgrade-chip.is-selected {
    background: rgba(220, 38, 38, 0.22);
}

.upgrade-chip.is-fixed {
    cursor: default;
    border-style: dashed;
    border-color: #fdba74;
    background: #fff7ed;
    color: #9a3412;
    min-width: 100%;
    flex-direction: row;
    justify-content: flex-start;
    gap: 0.5rem;
    padding: 0.5rem 0.65rem;
}

.upgrade-chip__cap {
    font-size: 0.72rem;
    font-weight: 800;
    line-height: 1.1;
    white-space: nowrap;
}

.upgrade-chip__meta {
    font-size: 0.58rem;
    font-weight: 600;
    color: var(--uc-muted);
    line-height: 1.1;
    margin-top: 0.1rem;
}

.upgrade-chip__meta--included {
    color: #059669;
}

.upgrade-chip__meta--plus {
    color: var(--uc-accent);
}

/* ── Detail footer summary ── */
.upgrade-configurator__footer {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.45rem 0.75rem;
    border-top: 1px dashed #fecaca;
    background: #fef2f2;
    font-size: 0.65rem;
}

.upgrade-configurator__footer.visible {
    display: flex;
}

.dark .upgrade-configurator__footer {
    background: rgba(127, 29, 29, 0.18);
    border-color: #7f1d1d;
}

.upgrade-configurator__footer-label {
    color: #991b1b;
    font-weight: 600;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upgrade-configurator__footer-total {
    font-weight: 800;
    color: #b91c1c;
    white-space: nowrap;
}

/* ── Pick toast (card click) ── */
.upgrade-toast-host {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 99999;
}

.upgrade-toast {
    position: fixed;
    max-width: min(92vw, 220px);
    padding: 0.35rem 0.55rem;
    border-radius: 0.45rem;
    background: rgba(17, 24, 39, 0.94);
    color: #fff;
    font-size: 0.62rem;
    font-weight: 700;
    line-height: 1.25;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
    opacity: 0;
    transform: translateX(-50%) translateY(4px);
    transition: opacity 0.18s ease, transform 0.18s ease;
    white-space: nowrap;
}

.upgrade-toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── Price sync helpers ── */
.price-updating {
    animation: upgradePricePulse 0.35s ease;
}

@keyframes upgradePricePulse {
    0% { transform: scale(1); color: inherit; }
    40% { transform: scale(1.04); color: #dc2626; }
    100% { transform: scale(1); color: inherit; }
}

[data-upgrade-spec].spec-upgraded {
    color: #dc2626 !important;
}

.dark [data-upgrade-spec].spec-upgraded {
    color: #f87171 !important;
}

.upgrade-price-delta-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 700;
    background: #fef2f2;
    color: #b91c1c;
    vertical-align: middle;
}

.upgrade-price-delta-badge.hidden {
    display: none;
}

.upgrade-live-summary {
    display: none !important;
}