:root {
    --primary: #0d6efd;
    --primary-dark: #084298;
    --primary-soft: #e7f1ff;
    --page-bg: #f4f8fb;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #dce6f0;
    --success: #16803a;
    --danger: #c2410c;
    --panel: #ffffff;
    --sidebar: #0b3d91;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.login-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        linear-gradient(135deg, rgba(13, 110, 253, 0.16), rgba(22, 128, 58, 0.08)),
        var(--page-bg);
}

.login-panel {
    width: min(100%, 440px);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 18px 50px rgba(31, 41, 55, 0.13);
}

.brand-mark {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    color: #fff;
    background: var(--primary);
    font-size: 26px;
    margin-bottom: 18px;
}

.login-panel h1 {
    margin: 0;
    font-size: 30px;
    font-weight: 750;
    letter-spacing: 0;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--sidebar);
    color: #fff;
    padding: 18px 14px;
    flex: 0 0 250px;
}

.sidebar-brand {
    height: 52px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 10px;
    font-weight: 750;
    font-size: 20px;
}

.sidebar-nav {
    display: grid;
    gap: 6px;
    margin-top: 18px;
}

.sidebar .nav-link {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 0;
    border-radius: 8px;
    padding: 10px 12px;
    color: rgba(255, 255, 255, 0.86);
    background: transparent;
    text-align: left;
    font-weight: 600;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.main-panel {
    flex: 1;
    min-width: 0;
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.eyebrow {
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
}

.topbar h2 {
    margin: 2px 0 0;
    font-size: 28px;
    font-weight: 750;
    letter-spacing: 0;
}

.topbar-actions,
.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.user-pill {
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--muted);
}

.btn-icon-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.view-section {
    display: none;
}

.view-section.active {
    display: block;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.metric-grid.compact {
    margin-top: 16px;
}

.metric-card,
.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(31, 41, 55, 0.06);
}

.metric-card {
    min-height: 108px;
    padding: 18px;
    display: grid;
    align-content: center;
    gap: 6px;
}

.metric-card span {
    color: var(--muted);
    font-size: 14px;
    font-weight: 650;
}

.metric-card strong {
    font-size: 30px;
    line-height: 1.1;
    letter-spacing: 0;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
    gap: 16px;
}

.content-grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.content-grid .wide {
    grid-column: 1 / -1;
}

.panel {
    padding: 18px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel-header h3,
.subhead {
    margin: 0;
    font-size: 18px;
    font-weight: 750;
    letter-spacing: 0;
}

.panel-header.split {
    align-items: flex-start;
}

.search-input {
    width: min(100%, 320px);
}

.compact-select {
    width: 190px;
}

.compact-date {
    width: 156px;
}

.list-stack {
    display: grid;
    gap: 10px;
}

.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--border);
    background: #fbfdff;
    border-radius: 8px;
    padding: 10px 12px;
}

.list-item strong {
    display: block;
}

.list-item small {
    color: var(--muted);
}

.badge-soft {
    border-radius: 999px;
    padding: 5px 9px;
    font-weight: 700;
    font-size: 12px;
}

.badge-ok {
    color: var(--success);
    background: #eaf7ee;
}

.badge-warn {
    color: var(--danger);
    background: #fff4eb;
}

.badge-muted {
    color: var(--muted);
    background: #eef2f6;
}

.pos-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 18px;
    align-items: start;
}

.pos-main-panel,
.pos-payment-panel {
    padding: 0;
    overflow: hidden;
}

.pos-reader {
    display: grid;
    grid-template-columns: 1.18fr 1.22fr 0.48fr 0.55fr 0.55fr 0.62fr 0.45fr 0.72fr 0.48fr 104px;
    gap: 8px;
    padding: 14px;
    background: #f8fbff;
    border-bottom: 1px solid var(--border);
}

.pos-field {
    min-width: 0;
}

.pos-field label {
    display: block;
    color: #0f172a;
    font-size: 12px;
    font-weight: 720;
    margin-bottom: 4px;
}

.pos-reader .form-control,
.pos-reader .form-select {
    min-height: 32px;
    padding: 4px 8px;
    border-color: #7aa7ef;
    border-radius: 0;
    font-size: 13px;
}

.pos-reader .form-control[readonly] {
    background: #edf4ff;
}

.pos-action-main {
    align-self: end;
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 0;
    font-weight: 740;
}

.pos-search-row {
    padding: 14px;
    border-bottom: 1px solid var(--border);
}

.pos-search-row .form-label {
    color: var(--text);
    font-size: 13px;
    font-weight: 720;
}

.pos-suggestions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(245px, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.pos-suggestion {
    border: 1px solid var(--border);
    background: #fbfdff;
    border-radius: 6px;
    padding: 9px 10px;
    display: grid;
    gap: 4px;
    cursor: pointer;
}

.pos-suggestion:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.pos-suggestion strong {
    font-size: 14px;
}

.pos-suggestion small {
    color: var(--muted);
}

.pos-total-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 16px 14px;
}

.pos-total-title {
    font-size: 26px;
    font-weight: 500;
}

.pos-total-title strong {
    font-weight: 780;
}

.pos-toolbar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pos-toolbar-actions .btn {
    min-height: 40px;
    font-weight: 720;
}

.pos-table-shell {
    padding: 0 14px 16px;
}

.pos-table-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    color: var(--text);
    font-size: 14px;
}

.pos-table-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pos-table-meta .form-control {
    width: 190px;
}

.pos-sale-table {
    border: 1px solid #a7d7e2;
}

.pos-sale-table thead th {
    background: #19a7ba;
    color: #fff;
    border-color: #1496a7;
    font-size: 13px;
    text-transform: none;
}

.pos-sale-table tbody td {
    border-color: #e8eef5;
    font-size: 14px;
}

.pos-sale-table tbody tr:nth-child(even) {
    background: #fbfdff;
}

.pos-row-actions {
    display: inline-flex;
    gap: 7px;
}

.pos-icon-btn {
    width: 30px;
    height: 30px;
    display: inline-grid;
    place-items: center;
    border: 0;
    border-radius: 4px;
    color: #fff;
}

.pos-icon-btn.add {
    background: #15803d;
}

.pos-icon-btn.minus {
    background: #eab308;
}

.pos-icon-btn.delete {
    background: #dc3545;
}

.pos-qty-input {
    width: 82px;
    min-height: 30px;
    display: inline-block;
}

.pos-payment-panel {
    position: sticky;
    top: 18px;
}

.pos-payment-title {
    background: var(--primary);
    color: #fff;
    padding: 13px 16px;
    font-size: 20px;
    font-weight: 760;
    text-align: center;
}

.pos-payment-body {
    padding: 14px;
}

.pos-payment-body .form-label {
    color: var(--text);
    font-size: 13px;
    font-weight: 740;
    margin-bottom: 5px;
}

.pos-two-cols {
    display: grid;
    grid-template-columns: 0.7fr 1fr;
    gap: 12px;
}

.payment-highlight,
.payment-change {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 760;
}

.payment-change {
    color: #dc3545;
    margin-top: 4px;
}

.payment-lines {
    display: grid;
    gap: 7px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.payment-lines div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.payment-lines span {
    color: var(--muted);
    font-weight: 720;
}

.payment-total {
    color: var(--text);
    font-size: 18px;
}

.table {
    margin-bottom: 0;
}

.table th {
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
    white-space: nowrap;
}

.table td {
    vertical-align: middle;
}

.pos-sale-table thead th {
    background: #19a7ba;
    color: #fff;
    border-color: #1496a7;
    text-transform: none;
}

.action-buttons {
    display: inline-flex;
    justify-content: flex-end;
    gap: 6px;
}

.action-buttons .btn {
    width: 38px;
    height: 38px;
    padding: 0;
    display: inline-grid;
    place-items: center;
}

.toast-message {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 1080;
    max-width: min(92vw, 380px);
    border-radius: 8px;
    padding: 12px 14px;
    background: #0f5132;
    color: #fff;
    box-shadow: 0 12px 35px rgba(31, 41, 55, 0.18);
}

.toast-message.error {
    background: #9a3412;
}

.ticket-area {
    width: 280px;
    margin: 0 auto;
    color: #111827;
    font-size: 13px;
}

.ticket-area h3,
.ticket-area p {
    text-align: center;
}

.ticket-area table {
    width: 100%;
}

.ticket-area td {
    padding: 3px 0;
}

.ticket-total {
    border-top: 1px dashed #111827;
    margin-top: 8px;
    padding-top: 8px;
    font-size: 16px;
    font-weight: 800;
}

@media (max-width: 1100px) {
    .pos-workspace,
    .content-grid,
    .content-grid.two {
        grid-template-columns: 1fr;
    }

    .pos-payment-panel {
        position: static;
    }

    .pos-reader {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .pos-reader .sku-field,
    .pos-reader .name-field {
        grid-column: span 2;
    }
}

@media (max-width: 780px) {
    .app-shell {
        display: block;
    }

    .sidebar {
        width: 100%;
        min-height: auto;
        padding: 12px;
    }

    .sidebar-nav {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .sidebar .nav-link {
        justify-content: center;
        min-height: 48px;
    }

    .sidebar .nav-link span {
        display: none;
    }

    .main-panel {
        padding: 16px;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .metric-grid {
        grid-template-columns: 1fr;
    }

    .panel-header.split,
    .toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .pos-reader {
        grid-template-columns: 1fr 1fr;
    }

    .pos-reader .sku-field,
    .pos-reader .name-field,
    .pos-action-main {
        grid-column: 1 / -1;
    }

    .pos-total-toolbar,
    .pos-table-meta {
        align-items: stretch;
        flex-direction: column;
    }

    .pos-toolbar-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .pos-table-meta .form-control {
        width: 100%;
    }

    .search-input,
    .compact-select,
    .compact-date {
        width: 100%;
    }
}

@media print {
    body * {
        visibility: hidden;
    }

    #ticketArea,
    #ticketArea * {
        visibility: visible;
    }

    #ticketArea {
        position: absolute;
        left: 0;
        top: 0;
    }
}