:root {
    --pg-green: #198754;
    --pg-green-dark: #146c43;
    --pg-navy: #17324D;
    --pg-navy-light: #1e4060;
    --pg-white: #FFFFFF;
    --pg-gray: #F5F7F9;
    --pg-sidebar-width: 260px;
    --pg-topbar-height: 64px;
}

* { box-sizing: border-box; }

body.pg-body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--pg-gray);
    color: #212529;
    min-height: 100vh;
}

.pg-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--pg-sidebar-width);
    height: 100vh;
    background: var(--pg-navy);
    color: #fff;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform .2s ease;
}

.pg-brand {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    gap: .75rem;
}

.pg-brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--pg-green);
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.pg-brand-text {
    line-height: 1.2;
}

.pg-brand-text strong {
    display: block;
    font-size: 1.05rem;
    letter-spacing: .02em;
}

.pg-brand-text small {
    opacity: .7;
    font-size: .75rem;
}

.pg-nav {
    overflow-y: auto;
    flex: 1;
    padding: .75rem 0;
}

.pg-nav a {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .65rem 1.25rem;
    color: rgba(255,255,255,.82);
    text-decoration: none;
    font-size: .92rem;
    border-left: 3px solid transparent;
    transition: background .15s, color .15s;
}

.pg-nav a:hover {
    background: var(--pg-navy-light);
    color: #fff;
}

.pg-nav a.active {
    background: rgba(25, 135, 84, .18);
    color: #fff;
    border-left-color: var(--pg-green);
}

.pg-nav .nav-icon {
    width: 1.25rem;
    text-align: center;
    opacity: .9;
}

.pg-nav .nav-section {
    padding: .9rem 1.25rem .35rem;
    font-size: .68rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    opacity: .45;
}

.pg-main {
    margin-left: var(--pg-sidebar-width);
    min-height: 100vh;
}

.pg-topbar {
    height: var(--pg-topbar-height);
    background: var(--pg-white);
    border-bottom: 1px solid #e6ebf0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.pg-content {
    padding: 1.5rem;
}

.pg-card {
    background: var(--pg-white);
    border: 1px solid #e8edf2;
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 1px 2px rgba(23, 50, 77, .04);
}

.pg-stat {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    min-height: 110px;
}

.pg-stat .label {
    font-size: .82rem;
    color: #6c757d;
}

.pg-stat .value {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--pg-navy);
}

.pg-stat .hint {
    font-size: .75rem;
    color: #8a95a1;
}

.pg-stat.accent-green { border-top: 3px solid var(--pg-green); }
.pg-stat.accent-navy { border-top: 3px solid var(--pg-navy); }
.pg-stat.accent-warn { border-top: 3px solid #fd7e14; }
.pg-stat.accent-danger { border-top: 3px solid #dc3545; }
.pg-stat.accent-info { border-top: 3px solid #0dcaf0; }

.btn-pg {
    background: var(--pg-green);
    border-color: var(--pg-green);
    color: #fff;
}

.btn-pg:hover {
    background: var(--pg-green-dark);
    border-color: var(--pg-green-dark);
    color: #fff;
}

.btn-pg-navy {
    background: var(--pg-navy);
    border-color: var(--pg-navy);
    color: #fff;
}

.btn-pg-navy:hover {
    background: var(--pg-navy-light);
    border-color: var(--pg-navy-light);
    color: #fff;
}

.page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--pg-navy);
    margin: 0;
}

.page-subtitle {
    color: #6c757d;
    font-size: .9rem;
    margin: 0;
}

.table-pg thead th {
    background: #f8fafb;
    color: var(--pg-navy);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    border-bottom-width: 1px;
    white-space: nowrap;
}

.badge-expiry-red { background: #dc3545; }
.badge-expiry-orange { background: #fd7e14; }
.badge-expiry-yellow { background: #ffc107; color: #212529; }
.badge-expiry-green { background: #198754; }

.alert-pg {
    border-radius: 10px;
    border: none;
}

.pos-scan-input.is-scanned {
    border-color: var(--pg-green) !important;
    box-shadow: 0 0 0 .2rem rgba(25, 135, 84, .2);
}

.pos-cart-table td { vertical-align: middle; }

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top right, rgba(25,135,84,.18), transparent 40%),
        linear-gradient(135deg, #17324D 0%, #1a3d5c 45%, #0f2438 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}

.product-thumb {
    width: 48px;
    height: 48px;
    object-fit: cover;
    background: #fff;
}

.product-thumb-placeholder {
    width: 48px;
    height: 48px;
    font-size: 1.1rem;
}

.product-image-preview {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid #e8edf2;
    background: #fff;
}

.product-image-preview-empty {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    border: 1px dashed #cfd8e3;
    background: #f8fafb;
    color: #8a95a1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: .35rem;
    font-size: .8rem;
}

[x-cloak] { display: none !important; }

@media (max-width: 991.98px) {
    .pg-sidebar {
        transform: translateX(-100%);
    }
    .pg-sidebar.show {
        transform: translateX(0);
    }
    .pg-main {
        margin-left: 0;
    }
    .pg-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.4);
        z-index: 1035;
    }
    .pg-overlay.show { display: block; }
}