/* ===== pos-screen.css - full-screen POS app (Area: Main/POSScreen) =====
   Linked from Areas/Blazor/App.razor right after ui-module.css, so POS rules
   win the cascade for shared elements. Scope: only .pos-* selectors. No Bootstrap.
   Razor views MUST NOT add their own <style> blocks - keep styles centralized here. */

/* ===== Design tokens ===== */
.pos-root {
    min-height: 100dvh;
}

.pos-shell,
.pos-dialog-shell {
    --pos-bg: #f4f6fb;
    --pos-surface: #ffffff;
    --pos-border: #e6e9f0;
    --pos-text: #0f172a;
    --pos-muted: #64748b;
    --pos-accent: #4f46e5;
    --pos-accent-soft: #eef2ff;
    --pos-success: #16a34a;
    --pos-success-soft: #dcfce7;
    --pos-danger: #ef4444;
    --pos-warn: #f59e0b;
    --pos-radius: 14px;
    --pos-shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

/* ===== Shell ===== */
.pos-shell {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(900px 420px at 88% -10%, rgba(79, 70, 229, .10), transparent 60%),
        radial-gradient(760px 380px at -12% 112%, rgba(22, 163, 74, .08), transparent 62%),
        var(--pos-bg);
    color: var(--pos-text);
    font-size: .9rem;
}

.pos-shell-center {
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
}

.pos-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
}

.pos-loading-text {
    margin: 0;
    font-size: .82rem;
    color: var(--pos-muted);
}

/* ===== Session not open / generic state card ===== */
.pos-state-card {
    width: 100%;
    max-width: 440px;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    box-shadow: var(--pos-shadow);
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
    text-align: center;
}

.pos-state-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    margin-bottom: .25rem;
}

.pos-state-icon.warn {
    background: #fef3c7;
    color: #d97706;
}

.pos-state-icon.warn .mud-icon-root {
    font-size: 1.8rem;
}

.pos-state-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
}

.pos-state-text {
    margin: 0;
    font-size: .82rem;
    color: var(--pos-muted);
    max-width: 320px;
}

/* ===== Brand block (picker topbar + register header) ===== */
.pos-brand {
    display: flex;
    align-items: center;
    gap: .75rem;
    min-width: 0;
}

.pos-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--pos-accent);
    color: #fff;
    flex-shrink: 0;
}

.pos-brand-mark .mud-icon-root {
    font-size: 1.35rem;
}

.pos-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    min-width: 0;
}

.pos-brand-name {
    font-weight: 600;
    font-size: .95rem;
    color: var(--pos-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-brand-sub {
    font-size: .72rem;
    color: var(--pos-muted);
}

.pos-chip {
    display: inline-flex;
    align-items: center;
    padding: .2rem .6rem;
    border-radius: 999px;
    background: var(--pos-accent-soft);
    color: var(--pos-accent);
    font-size: .72rem;
    font-weight: 600;
    white-space: nowrap;
}

.pos-meta-icon {
    font-size: 1rem;
    color: var(--pos-muted);
}

/* ===== Picker ===== */
.pos-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: 64px;
    padding: 0 1.25rem;
    background: var(--pos-surface);
    border-bottom: 1px solid var(--pos-border);
    flex-shrink: 0;
}

.pos-topbar-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.pos-btn-progress {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

.pos-picker {
    flex: 1;
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pos-picker-head {
    text-align: center;
}

.pos-picker-title {
    margin: 0;
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--pos-text);
}

.pos-picker-sub {
    margin: .35rem 0 0;
    font-size: .85rem;
    color: var(--pos-muted);
}

.pos-session-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.pos-session-card {
    display: flex;
    align-items: center;
    gap: .9rem;
    text-align: left;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    padding: 1rem;
    cursor: pointer;
    font: inherit;
    color: var(--pos-text);
    box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
    transition: transform .15s, border-color .15s, box-shadow .15s;
}

.pos-session-card:hover {
    transform: translateY(-2px);
    border-color: var(--pos-accent);
    box-shadow: var(--pos-shadow);
}

.pos-session-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: var(--pos-accent);
    color: #fff;
    flex-shrink: 0;
}

.pos-session-badge .mud-icon-root {
    font-size: 1.4rem;
}

.pos-session-body {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    min-width: 0;
    flex: 1;
}

.pos-session-name {
    font-size: .95rem;
    font-weight: 600;
}

.pos-session-chip {
    align-self: flex-start;
    padding: .1rem .5rem;
    border-radius: 999px;
    background: var(--pos-accent-soft);
    color: var(--pos-accent);
    font-size: .68rem;
    font-weight: 600;
}

.pos-session-meta {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .74rem;
    color: var(--pos-muted);
    min-width: 0;
}

.pos-session-chevron {
    color: #cbd5e1;
    transition: color .15s, transform .15s;
    flex-shrink: 0;
}

.pos-session-card:hover .pos-session-chevron {
    color: var(--pos-accent);
    transform: translateX(2px);
}

/* ===== Empty states ===== */
.pos-empty {
    width: 100%;
    max-width: 460px;
    margin: 1.5rem auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .45rem;
    text-align: center;
    background: var(--pos-surface);
    border: 1px dashed #cbd5e1;
    border-radius: var(--pos-radius);
    padding: 2.5rem 1.5rem;
}

.pos-empty-icon {
    font-size: 2.6rem;
    color: #cbd5e1;
}

.pos-empty-title {
    margin: 0;
    font-size: .95rem;
    font-weight: 600;
    color: var(--pos-text);
}

.pos-empty-text {
    margin: 0;
    font-size: .8rem;
    color: var(--pos-muted);
}

/* ===== Register header ===== */
.pos-register-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: 64px;
    padding: 0 1.25rem;
    background: var(--pos-surface);
    border-bottom: 1px solid var(--pos-border);
    flex-shrink: 0;
}

.pos-header-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.pos-header-cashier {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    min-width: 0;
}

.pos-avatar-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--pos-accent-soft);
    color: var(--pos-accent);
    font-size: .72rem;
    font-weight: 700;
    flex-shrink: 0;
}

.pos-header-cashier-name {
    font-size: .8rem;
    color: var(--pos-muted);
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pos-header-time {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .8rem;
    color: var(--pos-muted);
    white-space: nowrap;
}

.pos-clock {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .8rem;
    font-weight: 600;
    color: var(--pos-text);
    font-variant-numeric: tabular-nums;
    letter-spacing: .02em;
    white-space: nowrap;
}

/* ===== Register grid ===== */
.pos-register-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 420px;
    gap: 1rem;
    padding: 1rem 1.25rem 1.25rem;
    align-items: start;
    min-height: 0;
}

/* ===== Category rail ===== */
.pos-rail {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    position: sticky;
    top: 1rem;
    max-height: calc(100dvh - 64px - 2.25rem);
    min-height: 0;
}

.pos-rail-label {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--pos-muted);
    padding: 0 .25rem;
}

.pos-rail-list {
    display: flex;
    flex-direction: column;
    gap: .25rem;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    padding: .4rem;
    overflow-y: auto;
    min-height: 0;
}

.pos-rail-item {
    display: flex;
    align-items: center;
    gap: .55rem;
    width: 100%;
    border: none;
    background: transparent;
    border-radius: 10px;
    padding: .5rem .6rem;
    font: inherit;
    color: var(--pos-text);
    cursor: pointer;
    text-align: left;
    transition: background-color .15s, color .15s;
}

.pos-rail-item:hover {
    background: var(--pos-accent-soft);
}

.pos-rail-item.active {
    background: var(--pos-accent);
    color: #fff;
}

.pos-rail-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.pos-rail-item.active .pos-rail-dot {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .35);
}

.pos-rail-name {
    flex: 1;
    min-width: 0;
    font-size: .82rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-rail-count {
    font-size: .7rem;
    font-weight: 600;
    color: var(--pos-muted);
}

.pos-rail-item.active .pos-rail-count {
    color: rgba(255, 255, 255, .85);
}

/* ===== Product avatars / dots ===== */
.pos-avatar-0 { background: #6366f1; }
.pos-avatar-1 { background: #0ea5e9; }
.pos-avatar-2 { background: #14b8a6; }
.pos-avatar-3 { background: #f59e0b; }
.pos-avatar-4 { background: #ec4899; }
.pos-avatar-5 { background: #8b5cf6; }
.pos-avatar-6 { background: #22c55e; }
.pos-avatar-7 { background: #ef4444; }

/* ===== Catalog ===== */
.pos-catalog {
    display: flex;
    flex-direction: column;
    gap: .75rem;
    min-width: 0;
}

.pos-catalog-bar {
    display: flex;
    align-items: center;
    gap: .75rem;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    padding: .5rem .75rem;
    flex-wrap: wrap;
    position: sticky;
    top: .75rem;
    z-index: 5;
}

.pos-search,
.pos-barcode {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: var(--pos-bg);
    border: 1px solid var(--pos-border);
    border-radius: 999px;
    padding: .35rem .8rem;
    transition: border-color .15s, box-shadow .15s;
}

.pos-search {
    flex: 1;
    min-width: 200px;
}

.pos-barcode {
    min-width: 260px;
    background: #fff;
    border-style: dashed;
}

.pos-search:focus-within,
.pos-barcode:focus-within {
    border-color: var(--pos-accent);
    box-shadow: 0 0 0 3px var(--pos-accent-soft);
}

.pos-search-icon {
    color: var(--pos-muted);
    flex-shrink: 0;
    font-size: 1.05rem;
}

.pos-search-input {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    background: transparent;
    font: inherit;
    font-size: .82rem;
    color: var(--pos-text);
    padding: .25rem 0;
}

.pos-search-input::placeholder {
    color: #94a3b8;
}

.pos-product-count {
    font-size: .75rem;
    color: var(--pos-muted);
    white-space: nowrap;
}

.pos-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: .75rem;
}

.pos-product-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: .35rem;
    text-align: left;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    padding: .8rem;
    cursor: pointer;
    font: inherit;
    color: var(--pos-text);
    box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
    transition: transform .15s, border-color .15s, box-shadow .15s;
}

.pos-product-card:hover {
    transform: translateY(-2px);
    border-color: var(--pos-accent);
    box-shadow: var(--pos-shadow);
}

.pos-product-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.pos-product-name {
    font-size: .82rem;
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.6em;
}

.pos-product-unit {
    font-size: .7rem;
    color: var(--pos-muted);
}

.pos-product-price {
    font-size: .95rem;
    font-weight: 700;
    color: var(--pos-accent);
    margin-top: auto;
}

/* ===== Order panel ===== */
.pos-order {
    position: sticky;
    top: 1rem;
    display: flex;
    flex-direction: column;
    max-height: calc(100dvh - 64px - 2.25rem);
    min-height: 420px;
    background: var(--pos-surface);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    box-shadow: var(--pos-shadow);
    overflow: hidden;
}

.pos-order-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: .8rem 1rem;
    border-bottom: 1px solid var(--pos-border);
    flex-shrink: 0;
}

.pos-order-title {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-weight: 600;
    font-size: .92rem;
}

.pos-link-btn {
    border: none;
    background: transparent;
    padding: .2rem .4rem;
    border-radius: 8px;
    font: inherit;
    font-size: .78rem;
    font-weight: 600;
    color: var(--pos-muted);
    cursor: pointer;
    transition: background-color .15s, color .15s;
}

.pos-link-btn:hover:not(:disabled) {
    background: var(--pos-accent-soft);
    color: var(--pos-accent);
}

.pos-link-btn:disabled {
    color: #cbd5e1;
    cursor: default;
}

.pos-order-scroll {
    flex: 1;
    overflow-y: auto;
    padding: .75rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    min-height: 0;
}

.pos-order-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    text-align: center;
    padding: 2rem 1rem;
    color: var(--pos-muted);
}

.pos-order-empty .pos-empty-icon {
    font-size: 2.2rem;
}

/* ===== Banners ===== */
.pos-banner {
    border-radius: 12px;
    padding: .6rem .75rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    border: 1px solid transparent;
}

.pos-banner-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    flex-wrap: wrap;
}

.pos-banner-text {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .78rem;
    min-width: 0;
}

.pos-banner-info {
    background: var(--pos-accent-soft);
    border-color: #c7d2fe;
    color: #3730a3;
}

.pos-banner-info .pos-meta-icon {
    color: #6366f1;
}

.pos-banner-success {
    background: var(--pos-success-soft);
    border-color: #bbf7d0;
    color: #166534;
}

.pos-banner-success .pos-meta-icon {
    color: var(--pos-success);
}

.pos-banner-actions {
    display: flex;
    gap: .35rem;
    flex-wrap: wrap;
}

/* ===== Cart lines ===== */
.pos-line {
    border: 1px solid var(--pos-border);
    border-radius: 12px;
    padding: .55rem .6rem;
    display: flex;
    flex-direction: column;
    gap: .45rem;
    transition: border-color .15s;
}

.pos-line:hover {
    border-color: #cbd5e1;
}

.pos-line-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: .5rem;
}

.pos-line-name {
    font-size: .82rem;
    font-weight: 600;
    line-height: 1.3;
    min-width: 0;
}

.pos-line-remove {
    opacity: 0;
    transition: opacity .15s;
}

.pos-line:hover .pos-line-remove,
.pos-line-remove:focus-visible {
    opacity: 1;
}

.pos-line-body {
    display: flex;
    align-items: center;
    gap: .4rem;
    flex-wrap: wrap;
}

.pos-stepper {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}

.pos-stepper-btn {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--pos-border);
    background: #fff;
    color: var(--pos-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font: inherit;
    padding: 0;
    transition: background-color .15s, border-color .15s, color .15s;
}

.pos-stepper-btn:hover:not(:disabled) {
    background: var(--pos-accent-soft);
    border-color: var(--pos-accent);
    color: var(--pos-accent);
}

.pos-stepper-btn:disabled {
    opacity: .5;
    cursor: default;
}

.pos-stepper-btn .mud-icon-root {
    font-size: 1rem;
}

.pos-stepper-input {
    width: 44px;
    border: 1px solid var(--pos-border);
    border-radius: 8px;
    padding: .15rem .1rem;
    text-align: center;
    font: inherit;
    font-size: .82rem;
    font-weight: 700;
    color: var(--pos-text);
    outline: none;
}

.pos-stepper-input:focus {
    border-color: var(--pos-accent);
    box-shadow: 0 0 0 3px var(--pos-accent-soft);
}

.pos-line-fields {
    display: flex;
    align-items: flex-end;
    gap: .5rem;
    flex-wrap: wrap;
}

.pos-field {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    min-width: 0;
}

.pos-field-label {
    font-size: .62rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--pos-muted);
}

.pos-field-input {
    width: 92px;
    border: 1px solid var(--pos-border);
    border-radius: 8px;
    padding: .25rem .45rem;
    font: inherit;
    font-size: .8rem;
    color: var(--pos-text);
    background: #fff;
    outline: none;
}

.pos-field-input:focus {
    border-color: var(--pos-accent);
    box-shadow: 0 0 0 3px var(--pos-accent-soft);
}

.pos-field-input-row {
    display: flex;
    align-items: center;
    gap: .25rem;
}

.pos-field-percent {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--pos-border);
    border-radius: 8px;
    background: #fff;
    color: var(--pos-accent);
    font: inherit;
    font-size: .8rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: border-color .15s, background-color .15s;
}

.pos-field-percent:hover:not(:disabled) {
    border-color: var(--pos-accent);
    background: var(--pos-accent-soft);
}

.pos-field-percent:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.pos-percent-chips {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.pos-line-total {
    margin-left: auto;
    font-size: .88rem;
    font-weight: 700;
    color: var(--pos-accent);
    white-space: nowrap;
}

/* ===== Order footer ===== */
.pos-order-foot {
    border-top: 1px solid var(--pos-border);
    padding: .8rem 1rem 1rem;
    display: flex;
    flex-direction: column;
    gap: .7rem;
    flex-shrink: 0;
    background: var(--pos-surface);
}

.pos-order-totals {
    display: flex;
    flex-direction: column;
    gap: .3rem;
}

.pos-total-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .82rem;
    color: var(--pos-muted);
}

.pos-total-grand {
    border-top: 1px solid var(--pos-border);
    margin-top: .3rem;
    padding-top: .5rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--pos-text);
}

.pos-order-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .5rem;
}

.pos-order-actions .pos-pay-btn {
    grid-column: 1 / -1;
}

.pos-order-actions .pos-pay-btn.mud-button-filled,
.pos-dialog-shell .pos-pay-btn.mud-button-filled {
    background-color: var(--pos-success) !important;
    color: #fff !important;
    min-height: 52px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--pos-radius);
    box-shadow: 0 10px 24px rgba(22, 163, 74, .28);
}

.pos-order-actions .pos-pay-btn.mud-button-filled:hover,
.pos-dialog-shell .pos-pay-btn.mud-button-filled:hover {
    background-color: #15803d !important;
}

/* ===== Processing overlay ===== */
.pos-order-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, .55);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    border-radius: var(--pos-radius);
}

.pos-overlay-card {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: #fff;
    border: 1px solid var(--pos-border);
    border-radius: 999px;
    padding: .6rem 1rem;
    box-shadow: var(--pos-shadow);
    font-size: .85rem;
    font-weight: 600;
    color: var(--pos-text);
}

/* ===== Dialogs ===== */
.pos-dialog-shell {
    border-radius: 16px;
}

.pos-dialog {
    display: flex;
    flex-direction: column;
    gap: .75rem;
    color: var(--pos-text);
    padding-top: .25rem;
}

.pos-dialog-title {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--pos-text);
}

.pos-dialog-title-icon {
    color: var(--pos-accent);
}

.pos-dialog-label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--pos-muted);
}

.pos-field-error {
    font-size: .75rem;
    color: var(--pos-danger);
}

/* ===== Payment dialog ===== */
.pos-pay-total {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    background: var(--pos-bg);
    border: 1px solid var(--pos-border);
    border-radius: var(--pos-radius);
    padding: .9rem 1rem;
}

.pos-pay-total-label {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--pos-muted);
}

.pos-pay-total-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--pos-text);
}

.pos-pay-methods {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
}

.pos-pay-method {
    display: flex;
    align-items: center;
    gap: .55rem;
    background: #fff;
    border: 1px solid var(--pos-border);
    border-radius: 12px;
    padding: .6rem .7rem;
    cursor: pointer;
    font: inherit;
    font-size: .82rem;
    color: var(--pos-text);
    text-align: left;
    transition: border-color .15s, background-color .15s, box-shadow .15s;
}

.pos-pay-method:hover {
    border-color: var(--pos-accent);
}

.pos-pay-method.selected {
    border-color: var(--pos-accent);
    background: var(--pos-accent-soft);
    box-shadow: 0 0 0 1px var(--pos-accent);
}

.pos-pay-method-icon {
    color: var(--pos-accent);
    flex-shrink: 0;
}

.pos-pay-method-name {
    flex: 1;
    min-width: 0;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-pay-method-check {
    color: var(--pos-accent);
    flex-shrink: 0;
}

.pos-amount-row {
    display: flex;
    align-items: flex-end;
    gap: .5rem;
}

.pos-amount-field {
    flex: 1;
    min-width: 0;
}

.pos-exact-chip {
    border: 1px solid var(--pos-accent);
    background: var(--pos-accent-soft);
    color: var(--pos-accent);
    border-radius: 999px;
    padding: .35rem .8rem;
    font: inherit;
    font-size: .75rem;
    font-weight: 700;
    cursor: pointer;
    margin-bottom: .4rem;
    transition: background-color .15s;
}

.pos-exact-chip:hover:not(:disabled) {
    background: #e0e7ff;
}

.pos-exact-chip:disabled {
    opacity: .5;
    cursor: default;
}

.pos-change-panel {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .1rem;
    background: var(--pos-bg);
    border: 1px solid var(--pos-border);
    border-radius: 12px;
    padding: .6rem .8rem;
}

.pos-change-label {
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--pos-muted);
}

.pos-change-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.pos-change-panel.positive .pos-change-value {
    color: var(--pos-success);
}

.pos-change-panel.negative .pos-change-value {
    color: var(--pos-danger);
}

.pos-change-hint {
    font-size: .72rem;
    color: var(--pos-muted);
}

/* ===== Parked dialog ===== */
.pos-parked-list {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.pos-parked-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .6rem;
    flex-wrap: wrap;
    border: 1px solid var(--pos-border);
    border-radius: 12px;
    padding: .6rem .7rem;
    background: #fff;
}

.pos-parked-info {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    min-width: 0;
}

.pos-parked-code {
    font-size: .85rem;
    font-weight: 700;
}

.pos-parked-meta {
    font-size: .74rem;
    color: var(--pos-muted);
}

.pos-parked-actions {
    display: flex;
    gap: .35rem;
    flex-wrap: wrap;
}

/* ===== Receipt dialog ===== */
.pos-receipt {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: .15rem;
    background: #fff;
    border: 1px solid var(--pos-border);
    border-radius: 12px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .05);
    padding: 1rem 1.1rem;
    max-height: 55vh;
    overflow-y: auto;
    font-variant-numeric: tabular-nums;
}

.pos-receipt-company {
    text-align: center;
    font-size: .95rem;
    font-weight: 700;
    color: var(--pos-text);
}

.pos-receipt-address {
    text-align: center;
    font-size: .72rem;
    color: var(--pos-muted);
}

.pos-receipt-heading {
    text-align: center;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .22em;
    color: var(--pos-text);
    margin-bottom: .15rem;
}

.pos-receipt-sep {
    width: 100%;
    border: 0;
    border-top: 1px dashed var(--pos-border);
    margin: .45rem 0;
}

.pos-receipt-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .75rem;
    font-size: .78rem;
}

.pos-receipt-row > span:first-child {
    color: var(--pos-muted);
}

.pos-receipt-row > span:last-child {
    font-weight: 600;
    color: var(--pos-text);
    text-align: right;
}

.pos-receipt-item {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    padding: .25rem 0;
}

.pos-receipt-item-name {
    font-size: .8rem;
    font-weight: 700;
    color: var(--pos-text);
}

.pos-receipt-total {
    font-size: .82rem;
}

.pos-receipt-grand {
    border-top: 1px solid var(--pos-border);
    margin-top: .3rem;
    padding-top: .35rem;
    font-size: 1rem;
    font-weight: 700;
}

.pos-receipt-grand > span:first-child,
.pos-receipt-grand > span:last-child {
    color: var(--pos-text);
    font-weight: 700;
}

.pos-receipt-thanks {
    text-align: center;
    font-size: .78rem;
    font-weight: 700;
    color: var(--pos-text);
    margin-top: .6rem;
}

/* ===== Responsive fallback ===== */
@media (max-width: 1180px) {
    .pos-register-grid {
        grid-template-columns: 180px minmax(0, 1fr) 380px;
    }
}

@media (max-width: 1100px) {
    .pos-register-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .pos-rail {
        position: static;
        max-height: none;
    }

    .pos-rail-list {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
    }

    .pos-rail-item {
        width: auto;
        flex: 0 0 auto;
    }

    .pos-rail-item .pos-rail-name {
        max-width: 140px;
    }

    .pos-order {
        position: static;
        max-height: none;
        min-height: 0;
    }

    .pos-order-scroll {
        max-height: 420px;
    }
}

@media (max-width: 700px) {
    .pos-register-header {
        height: auto;
        flex-direction: column;
        align-items: flex-start;
        padding: .75rem 1rem;
        gap: .5rem;
    }

    .pos-header-meta {
        width: 100%;
        justify-content: flex-start;
    }

    .pos-catalog-bar {
        position: static;
    }

    .pos-barcode {
        min-width: 0;
        width: 100%;
    }

    .pos-session-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}