/* ============================================
   Bar Management System — Design System
   ============================================ */

:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --accent: #d4a017;
    --accent-light: #f0c75e;
    --accent-dark: #b8860b;
    --success: #059669;
    --danger: #dc2626;
    --info: #2563eb;
    --warn: #d97706;
    --surface: #ffffff;
    --bg: #f8f6f1;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --radius: 0.75rem;
    --radius-lg: 1rem;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 10px -2px rgba(0,0,0,0.04);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 1px 2px rgba(26,26,46,0.2);
}
.btn-primary:hover { background: var(--primary-light); box-shadow: var(--shadow-md); }

.btn-accent {
    background: var(--accent);
    color: white;
    box-shadow: 0 1px 2px rgba(212,160,23,0.3);
}
.btn-accent:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }

.btn-success {
    background: var(--success);
    color: white;
}
.btn-success:hover { background: #047857; }

.btn-danger {
    background: var(--danger);
    color: white;
}
.btn-danger:hover { background: #b91c1c; }

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover { background: #f3f4f6; border-color: #d1d5db; }

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: none;
}
.btn-ghost:hover { background: #f3f4f6; color: var(--text); }

.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.625rem 1.25rem; font-size: 1rem; }

/* ── Cards ── */
.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    border: 1px solid rgba(0,0,0,0.04);
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid rgba(0,0,0,0.04);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card .stat-icon {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.75rem;
    opacity: 0.15;
}
.stat-card .stat-value { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; }
.stat-card .stat-label { font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; }
.stat-card.border-accent { border-left: 4px solid var(--accent); }
.stat-card.border-success { border-left: 4px solid var(--success); }
.stat-card.border-info { border-left: 4px solid var(--info); }
.stat-card.border-danger { border-left: 4px solid var(--danger); }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid rgba(0,0,0,0.04); }
table { width: 100%; border-collapse: collapse; }
thead { background: #f9fafb; }
th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.875rem;
}
tr:last-child td { border-bottom: none; }
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: #f9fafb; }

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    gap: 0.25rem;
}
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-accepted { background: #dbeafe; color: #1e40af; }
.badge-ready { background: #d1fae5; color: #065f46; }
.badge-served { background: #e0e7ff; color: #3730a3; }
.badge-closed { background: #f3f4f6; color: #4b5563; }
.badge-cancelled { background: #fee2e2; color: #991b1b; }
.badge-active { background: #d1fae5; color: #065f46; }
.badge-inactive { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info    { background: #dbeafe; color: #1e40af; }

/* ── Low-stock / out-of-stock POS item states ── */
.pos-menu-item.low-stock { border-color: #fcd34d; background: #fffbeb; }
.pos-menu-item.low-stock .item-price::after { content: ' ⚠'; font-size: 0.7em; }
.pos-menu-item.out-of-stock { opacity: 0.45; pointer-events: none; border-color: #fca5a5; background: #fef2f2; }
.pos-menu-item.out-of-stock::after {
    content: 'OUT OF STOCK';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotate(-12deg);
    font-size: 0.65rem;
    font-weight: 800;
    color: #dc2626;
    letter-spacing: 0.1em;
    pointer-events: none;
}
.pos-menu-item { position: relative; }

/* ── Stat-card warning variant ── */
.stat-card.border-warning { border-left: 4px solid var(--warn); }

/* ── Form Elements ── */
.form-group { margin-bottom: 1rem; }
.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.375rem;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    outline: none;
    font-size: 0.875rem;
    transition: all var(--transition);
    background: var(--surface);
    color: var(--text);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212,160,23,0.12);
}
.form-input::placeholder { color: #9ca3af; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; padding-right: 2rem; }
.form-textarea { resize: vertical; min-height: 80px; }

/* ── Modals ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: fadeIn 0.15s ease;
}
.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    width: 100%;
    max-width: 28rem;
    animation: slideUp 0.2s ease;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}
.modal-title { font-size: 1.125rem; font-weight: 600; }
.modal-close {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition);
}
.modal-close:hover { background: #f3f4f6; color: var(--text); }

/* ── Toast Notifications ── */
.toast {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    color: white;
    font-weight: 500;
    font-size: 0.875rem;
    animation: slideInRight 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 24rem;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ── Sidebar ── */
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: 0.5rem;
    color: #9ca3af;
    text-decoration: none;
    transition: all var(--transition);
    font-size: 0.875rem;
    font-weight: 400;
    position: relative;
}
.sidebar-link:hover { background: rgba(255,255,255,0.06); color: white; }
.sidebar-link.active { background: rgba(212,160,23,0.12); color: var(--accent-light); font-weight: 500; }
.sidebar-link.active::before {
    content: '';
    position: absolute;
    left: -0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 1.25rem;
    background: var(--accent);
    border-radius: 0 2px 2px 0;
}
.sidebar-link i { font-size: 1.125rem; width: 1.25rem; text-align: center; flex-shrink: 0; }
.sidebar-section { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.08em; color: #6b7280; padding: 1rem 0.75rem 0.375rem; font-weight: 600; }

/* ── Category Filter Pills ── */
.cat-filter {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    color: var(--text);
}
.cat-filter:hover { border-color: var(--accent); color: var(--accent); }
.cat-filter.active { background: var(--primary); color: white; border-color: var(--primary); }
.cat-filter.active form { color: white; }

/* ── POS Specific ── */
.pos-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1rem;
    height: calc(100vh - 5rem);
}
@media (max-width: 1024px) {
    .pos-grid { grid-template-columns: 1fr; height: auto; }
}

.pos-menu-item {
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid #f3f4f6;
    border-radius: 0.75rem;
    padding: 0.75rem;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}
.pos-menu-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.pos-menu-item:active { transform: scale(0.98); }
.pos-menu-item .item-price { color: var(--accent); font-weight: 700; }

.pos-cart {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0,0,0,0.04);
    max-height: calc(100vh - 6rem);
}
.pos-cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.75rem;
}

.category-filter-btn {
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.category-filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.category-filter-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* ── Table Selector ── */
.table-btn {
    width: 100%;
    padding: 0.75rem 0.5rem;
    border-radius: 0.75rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    border: 2px solid transparent;
    transition: all var(--transition);
    cursor: pointer;
}
.table-btn.free { background: #f0fdf4; border-color: #86efac; color: #166534; }
.table-btn.free:hover { background: #dcfce7; border-color: #4ade80; }
.table-btn.occupied { background: #fef2f2; border-color: #fca5a5; color: #991b1b; cursor: not-allowed; opacity: 0.6; }
.table-btn.reserved { background: #fffbeb; border-color: #fcd34d; color: #92400e; cursor: not-allowed; opacity: 0.6; }
.table-btn:active:not(.occupied):not(.reserved) { transform: scale(0.95); }

/* ── Page Header ── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.page-title { font-size: 1.375rem; font-weight: 700; letter-spacing: -0.02em; }

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}
.empty-state i { font-size: 3rem; opacity: 0.3; margin-bottom: 0.75rem; display: block; }
.empty-state p { font-size: 0.9375rem; }

/* ── Stats Grid ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }

/* ── Customer Menu ── */
.customer-menu-item {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition);
    border: 1px solid rgba(0,0,0,0.04);
}
.customer-menu-item:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.customer-menu-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid rgba(0,0,0,0.04);
    position: relative;
}
.customer-menu-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.customer-menu-card-img {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #f3f4f6;
}
.customer-menu-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.customer-menu-card-add {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    background: var(--accent);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 2px 6px rgba(212,160,23,0.4);
    font-size: 1.125rem;
    line-height: 1;
}
.customer-menu-card-add:hover { background: var(--accent-dark); transform: scale(1.1); }
.customer-menu-card-add:active { transform: scale(0.95); }

.customer-cart-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    border-radius: 1.5rem 1.5rem 0 0;
    padding: 1.25rem;
    z-index: 100;
    max-width: 32rem;
    margin: 0 auto;
    animation: slideUp 0.3s ease;
}

.qty-btn {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.125rem;
    background: var(--surface);
    transition: all var(--transition);
    color: var(--text);
    line-height: 1;
}
.qty-btn:hover { border-color: var(--accent); color: var(--accent); }
.qty-btn:active { transform: scale(0.9); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ── Receipt (screen) ── */
.receipt-table { width: 100%; border-collapse: collapse; }
.receipt-table td { padding: 4px 0; border: none; font-size: 12px; }
.receipt-table td.text-right { text-align: right; }

/* ── Cart Items (POS) ── */
.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f3f4f6;
}

/* ── Print Receipt ── */
@media print {
    /* Hide everything except the receipt */
    body > * { display: none !important; }
    #receipt-print-wrapper,
    #receipt-print-wrapper * { display: block !important; visibility: visible !important; }

    /* Also support the older #receipt selector used on pos.php */
    body * { visibility: hidden; }
    #receipt, #receipt * { visibility: visible; }

    body {
        background: white !important;
        margin: 0;
        padding: 0;
    }

    #receipt {
        position: fixed;
        top: 0;
        left: 0;
        width: 80mm;
        padding: 8px 4px;
        font-size: 11px;
        font-family: 'Courier New', Courier, monospace;
        color: #000;
        background: white;
    }

    #receipt h2 {
        font-size: 15px;
        font-weight: bold;
        text-align: center;
        margin: 0 0 2px;
    }

    #receipt .receipt-address,
    #receipt .receipt-date {
        text-align: center;
        font-size: 10px;
        color: #444;
        margin: 0;
    }

    #receipt hr {
        border: none;
        border-top: 1px dashed #000;
        margin: 6px 0;
    }

    #receipt table {
        width: 100%;
        border-collapse: collapse;
    }

    #receipt td {
        padding: 2px 0;
        border: none;
        font-size: 11px;
        vertical-align: top;
    }

    #receipt td.text-right,
    #receipt .text-right { text-align: right; }

    #receipt .receipt-totals { margin-top: 4px; }
    #receipt .receipt-totals div { display: flex; justify-content: space-between; font-size: 11px; padding: 1px 0; }
    #receipt .receipt-grand-total { font-weight: bold; font-size: 14px; border-top: 1px dashed #000; padding-top: 4px; margin-top: 2px; }

    #receipt .receipt-footer {
        text-align: center;
        font-size: 10px;
        color: #555;
        margin-top: 10px;
        border-top: 1px dashed #000;
        padding-top: 6px;
    }

    @page {
        margin: 0;
        size: 80mm auto;
    }
}

/* ── Inventory Tabs & Filters ── */
.view-filter {
    padding: 0.375rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
}
.view-filter:hover { border-color: var(--accent); color: var(--accent); }
.view-filter.active { background: var(--primary); color: white; border-color: var(--primary); }

.history-tab {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-bottom: -1px;
}
.history-tab:hover { color: var(--text); }
.history-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.history-panel { display: none; }
.history-panel.active { display: block; }

.btn-success {
    background: #059669;
    color: white;
}
.btn-success:hover { background: #047857; }

/* ── Utility ── */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* ── Loading States ── */
.spin { animation: spin 1s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 9999px;
    animation: spin 0.6s linear infinite;
}
.btn-loading { pointer-events: none; opacity: 0.7; }
.btn-loading .btn-text { visibility: hidden; }
.btn-loading .btn-spinner { display: inline-flex; }

.page-fade-in {
    animation: pageFadeIn 0.25s ease;
}
@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.2s ease infinite;
    border-radius: 0.375rem;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}