/* =====================================================
   app.css — SuperMarket POS Application Styles
   ===================================================== */

/* ── Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 0.875rem;
    background: var(--bg-body);
    color: var(--text-primary);
    transition: background-color 0.2s ease, color 0.2s ease;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }

/* ── Layout Shell ─────────────────────────────────── */
.app-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ── Sidebar ──────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.2s ease, min-width 0.2s ease;
    position: relative;
    z-index: 100;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
    min-width: var(--sidebar-collapsed);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    min-height: 56px;
}

.sidebar-brand-icon {
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
    font-size: 14px;
}

.sidebar-brand-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.2s ease, width 0.2s ease;
}

.sidebar.collapsed .sidebar-brand-text { opacity: 0; width: 0; }

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar-group-header {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 16px 4px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
    color: rgba(255,255,255,0.35);
    text-align: left;
    transition: color 0.15s;
    overflow: hidden;
}
.sidebar-group-header:hover {
    color: rgba(255,255,255,0.6);
}
.sidebar-group-label-text {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
    overflow: hidden;
    flex: 1;
    transition: opacity 0.2s;
}
.sidebar-group-chevron {
    font-size: 0.6rem;
    flex-shrink: 0;
    transition: transform 0.22s ease, opacity 0.2s;
}
.sidebar-group-header.collapsed .sidebar-group-chevron {
    transform: rotate(-90deg);
}

.sidebar-group-items {
    display: grid;
    grid-template-rows: 1fr;
    transition: grid-template-rows 0.22s ease;
}
.sidebar-group-items.collapsed {
    grid-template-rows: 0fr;
}
.sidebar-group-inner {
    overflow: hidden;
    min-height: 0;
}

.sidebar.collapsed .sidebar-group-header {
    cursor: default;
    pointer-events: none;
}
.sidebar.collapsed .sidebar-group-label-text { opacity: 0; width: 0; }
.sidebar.collapsed .sidebar-group-chevron    { opacity: 0; }
.sidebar.collapsed .sidebar-group-items,
.sidebar.collapsed .sidebar-group-items.collapsed {
    grid-template-rows: 1fr !important;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    color: var(--text-sidebar);
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    border-radius: 0;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
    overflow: hidden;
}

.sidebar-item:hover {
    background: rgba(255,255,255,0.06);
    color: var(--text-sidebar-hover);
}

.sidebar-item.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
}

.sidebar-item i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-item span {
    transition: opacity 0.2s;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-item span { opacity: 0; width: 0; }


/* ── Main Content ─────────────────────────────────── */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ── Topbar ───────────────────────────────────────── */
.topbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 20px;
    height: 56px;
    min-height: 56px;
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-topbar);
    z-index: 50;
}

.topbar-title {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.topbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.15s, color 0.15s;
}

.topbar-btn:hover {
    background: var(--color-neutral-light);
    color: var(--text-primary);
}

/* ── Page Content ─────────────────────────────────── */
.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.page-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.page-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 2px 0 0 0;
}

/* ── Cards ────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px 16px;
    box-shadow: var(--shadow-card);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* ── Metric Cards ─────────────────────────────────── */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px 16px;
}

.metric-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-weight: 500;
    margin-bottom: 6px;
}

.metric-value {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.metric-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    margin-bottom: 8px;
}

.metric-icon.primary  { background: var(--color-primary-light); color: var(--color-primary); }
.metric-icon.success  { background: var(--color-success-light); color: var(--color-success); }
.metric-icon.warning  { background: var(--color-warning-light); color: var(--color-warning); }
.metric-icon.danger   { background: var(--color-danger-light);  color: var(--color-danger); }
.metric-icon.neutral  { background: var(--color-neutral-light); color: var(--color-neutral); }

/* ── Tables ───────────────────────────────────────── */
.table-responsive { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.data-table th {
    background: var(--bg-table-header);
    color: var(--text-muted);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr:hover td { background: var(--bg-table-row-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ── Forms ────────────────────────────────────────── */
.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.form-control,
.form-select {
    width: 100%;
    padding: 7px 10px;
    font-size: 0.8125rem;
    font-family: inherit;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-input);
    border-radius: var(--border-radius-sm);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
    appearance: none;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px rgba(37,99,235,0.15);
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    padding-right: 28px;
}

.form-check { display: flex; align-items: center; gap: 8px; }
.form-check-input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--color-primary); }
.form-check-label { font-size: 0.8125rem; color: var(--text-primary); cursor: pointer; }

.form-error { font-size: 0.75rem; color: var(--color-danger); margin-top: 3px; }
.form-hint  { font-size: 0.75rem; color: var(--text-muted); margin-top: 3px; }

.form-group { margin-bottom: 14px; }

/* ── Buttons ──────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: inherit;
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

.btn-sm { padding: 4px 10px; font-size: 0.75rem; }
.btn-xs { padding: 2px 8px;  font-size: 0.6875rem; }

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

.btn-success   { background: var(--color-success);   color: #fff; border-color: var(--color-success); }
.btn-danger    { background: var(--color-danger);    color: #fff; border-color: var(--color-danger); }
.btn-warning   { background: var(--color-warning);   color: #fff; border-color: var(--color-warning); }

.btn-outline   { background: transparent; color: var(--text-primary); border-color: var(--border-color); }
.btn-outline:hover { background: var(--color-neutral-light); }

.btn-ghost     { background: transparent; color: var(--text-secondary); border-color: transparent; }
.btn-ghost:hover { background: var(--color-neutral-light); color: var(--text-primary); }

.btn-icon { padding: 6px; width: 30px; height: 30px; justify-content: center; }

/* ── Badges ───────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.6875rem;
    font-weight: 500;
    border-radius: 20px;
    white-space: nowrap;
}

.badge-active   { background: var(--badge-active-bg);   color: var(--badge-active-text); }
.badge-inactive { background: var(--badge-inactive-bg); color: var(--badge-inactive-text); }
.badge-primary  { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success  { background: var(--color-success-light); color: var(--color-success); }
.badge-warning  { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger   { background: var(--color-danger-light);  color: var(--color-danger); }
.badge-neutral  { background: var(--color-neutral-light); color: var(--color-neutral); }

/* ── Alerts / Toasts ──────────────────────────────── */
.alert {
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-success { background: var(--color-success-light); color: var(--color-success); border: 1px solid var(--color-success-light); }
.alert-danger  { background: var(--color-danger-light);  color: var(--color-danger);  border: 1px solid var(--color-danger-light); }
.alert-warning { background: var(--color-warning-light); color: var(--color-warning); border: 1px solid var(--color-warning-light); }
.alert-info    { background: var(--color-primary-light); color: var(--color-primary); border: 1px solid var(--color-primary-light); }

/* Toast container */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 10px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    box-shadow: var(--shadow-dropdown);
    pointer-events: all;
    animation: toastIn 0.25s ease forwards;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 340px;
}

.toast-success { background: var(--color-success); color: #fff; }
.toast-danger  { background: var(--color-danger);  color: #fff; }
.toast-warning { background: var(--color-warning); color: #fff; }
.toast-info    { background: var(--color-primary); color: #fff; }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Dropdown ─────────────────────────────────────── */
.dropdown { position: relative; }

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-dropdown);
    min-width: 180px;
    z-index: 1000;
    overflow: hidden;
    display: none;
}

.dropdown-menu.show { display: block; }

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: 0.8125rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.1s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    text-decoration: none;
}

.dropdown-item:hover { background: var(--color-neutral-light); }
.dropdown-item.danger { color: var(--color-danger); }
.dropdown-divider { border-top: 1px solid var(--border-color); margin: 4px 0; }

/* ── Pagination ───────────────────────────────────── */
.pagination { display: flex; gap: 4px; align-items: center; }

.pagination .page-link {
    padding: 5px 10px;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    background: var(--bg-card);
    text-decoration: none;
    transition: background 0.1s;
}

.pagination .page-item.active .page-link {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.pagination .page-link:hover:not(.active) { background: var(--color-neutral-light); }

/* ── Utilities ────────────────────────────────────── */
.text-muted   { color: var(--text-muted) !important; }
.text-primary-color { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-danger  { color: var(--color-danger) !important; }
.text-warning { color: var(--color-warning) !important; }

.bg-card       { background: var(--bg-card); }
.border-bottom { border-bottom: 1px solid var(--border-color); }

.d-flex        { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.flex-1 { flex: 1; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 4px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }

.p-0 { padding: 0; }
.fw-600 { font-weight: 600; }
.fw-500 { font-weight: 500; }
.fs-sm  { font-size: 0.75rem; }
.fs-xs  { font-size: 0.6875rem; }
.w-100  { width: 100%; }

/* ── Location Switcher ────────────────────────────── */
.location-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-card);
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
}

.location-switcher:hover { background: var(--color-neutral-light); }
.location-switcher i { color: var(--color-primary); }

/* ── Avatar ───────────────────────────────────────── */
.avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* ── Empty State ──────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-state i { font-size: 2rem; margin-bottom: 8px; opacity: 0.4; }
.empty-state p { font-size: 0.8125rem; margin: 0; }

/* ── Scrollbar ────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { position: fixed; height: 100vh; z-index: 1000; transform: translateX(-100%); transition: transform 0.2s ease; }
    .sidebar.mobile-open { transform: translateX(0); }
    .page-content { padding: 14px; }
    .metric-grid { grid-template-columns: repeat(2, 1fr); }
}