/* ============================================================
   Gurjen Face Veneer Stock Management - Modern Theme
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables (Light Theme) --- */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --success-dark: #15803d;
    --success-light: #dcfce7;
    --warning: #f59e0b;
    --warning-dark: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-dark: #b91c1c;
    --danger-light: #fee2e2;
    --info: #0891b2;
    --info-light: #cffafe;

    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-sidebar: #0f172a;
    --bg-navbar: #1e293b;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-light: #f8fafc;

    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.2s ease;
}

/* --- Base Styles --- */
* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-body);
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h2 {
    font-size: 1.5rem;
}

/* --- Navbar --- */
.navbar {
    background: linear-gradient(135deg, var(--bg-sidebar) 0%, var(--bg-navbar) 100%) !important;
    box-shadow: var(--shadow-md);
    padding: 0.6rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.navbar-dark .navbar-nav .nav-link i {
    margin-right: 6px;
    font-size: 1rem;
}

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

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    border-radius: var(--radius) var(--radius) 0 0 !important;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.card-header.bg-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
}

.card-header.bg-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%) !important;
}

.card-header.bg-info {
    background: linear-gradient(135deg, var(--info) 0%, #0e7490 100%) !important;
}

.card-header.bg-warning {
    background: linear-gradient(135deg, var(--warning) 0%, var(--warning-dark) 100%) !important;
    color: #fff !important;
}

.card-header.bg-dark {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%) !important;
}

.card-body {
    padding: 1.25rem;
}

/* --- Tables --- */
.table {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.table thead th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    padding: 0.75rem 0.75rem;
}

.table-dark th {
    background: #1e293b !important;
    color: #fff !important;
    border-color: #334155 !important;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

.table td {
    padding: 0.7rem 0.75rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

.table-bordered {
    border: 1px solid var(--border-color);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--border-color);
}

.table-hover tbody tr:hover {
    background-color: #f1f5f9;
}

.table-sm td, .table-sm th {
    padding: 0.4rem 0.5rem;
}

.table tfoot th {
    font-weight: 600;
    background-color: #f8fafc;
}

.table-secondary {
    background-color: #f1f5f9 !important;
}

.table-info {
    background-color: var(--info-light) !important;
}

/* --- Buttons --- */
.btn {
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: none;
    letter-spacing: 0.01em;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #1e40af 100%);
    color: #fff;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
    color: #fff;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-dark) 0%, #166534 100%);
    color: #fff;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, var(--warning-dark) 100%);
    color: #fff;
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--warning-dark) 0%, #b45309 100%);
    color: #fff;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, var(--danger-dark) 100%);
    color: #fff;
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--danger-dark) 0%, #991b1b 100%);
    color: #fff;
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

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

.btn-outline-success {
    border: 2px solid var(--success);
    color: var(--success);
    background: transparent;
}

.btn-outline-success:hover {
    background: var(--success);
    color: #fff;
}

.btn-outline-info {
    border: 2px solid var(--info);
    color: var(--info);
    background: transparent;
}

.btn-outline-info:hover {
    background: var(--info);
    color: #fff;
}

.btn-outline-warning {
    border: 2px solid var(--warning);
    color: var(--warning);
    background: transparent;
}

.btn-outline-warning:hover {
    background: var(--warning);
    color: #fff;
}

.btn-outline-danger {
    border: 2px solid var(--danger);
    color: var(--danger);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-outline-secondary {
    border: 2px solid var(--text-muted);
    color: var(--text-secondary);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--text-muted);
    color: #fff;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.btn-group-sm > .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

.btn + .btn {
    margin-left: 4px;
}

/* --- Form Controls --- */
.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-family: var(--font-family);
    transition: var(--transition);
    background-color: #fff;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    outline: none;
}

.form-control-sm {
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
}

.form-label {
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-control-plaintext {
    padding: 0.5rem 0;
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Badges --- */
.badge {
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    border-radius: 9999px;
    letter-spacing: 0.01em;
}

.badge.bg-primary { background: var(--primary) !important; }
.badge.bg-success { background: var(--success) !important; }
.badge.bg-danger { background: var(--danger) !important; }
.badge.bg-warning { background: var(--warning) !important; color: #fff !important; }
.badge.bg-info { background: var(--info) !important; }
.badge.bg-secondary { background: #64748b !important; }
.badge.bg-dark { background: #1e293b !important; }

/* --- Alerts / Flash Messages --- */
.alert {
    border-radius: var(--radius);
    border: none;
    font-weight: 500;
    padding: 0.9rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: var(--success-light);
    color: #166534;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: var(--danger-light);
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: var(--info-light);
    color: #155e75;
    border-left: 4px solid var(--info);
}

/* --- Pagination --- */
.pagination {
    margin-top: 1.25rem;
    gap: 4px;
}

.page-link {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm) !important;
    padding: 0.4rem 0.8rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: #fff;
    transition: var(--transition);
}

.page-link:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

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

.page-item.disabled .page-link {
    background: #f1f5f9;
    border-color: var(--border-color);
    color: var(--text-muted);
}

/* --- Dropdown --- */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.4rem;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.8rem;
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.dropdown-item.active {
    background: var(--primary);
    color: #fff;
}

.dropdown-divider {
    border-top: 1px solid var(--border-color);
    margin: 0.3rem 0;
}

/* --- Grade Column Colors --- */
.grade-ABC {
    background-color: #f0fdf4 !important;
}
.grade-D {
    background-color: #fff7ed !important;
}
.grade-E {
    background-color: #eff6ff !important;
}
.grade-F {
    background-color: #fdf2f8 !important;
}

th.grade-ABC {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%) !important;
    color: white !important;
}
th.grade-D {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%) !important;
    color: white !important;
}
th.grade-E {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: white !important;
}
th.grade-F {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%) !important;
    color: white !important;
}

/* --- Packing Form Item Rows --- */
.packing-item-row {
    background: #f8fafc;
    padding: 1rem;
    border-radius: var(--radius);
    border: 2px dashed var(--border-color);
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

.packing-item-row:hover {
    border-color: var(--primary);
    background: #f1f5f9;
}

/* --- Quantity Input --- */
.qty-input {
    max-width: 90px;
    text-align: center;
    font-weight: 600;
}

.qty-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* --- List Group (Dashboard Recent Packing) --- */
.list-group-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm) !important;
    margin-bottom: 4px;
    transition: var(--transition);
}

.list-group-item:hover {
    background: #f8fafc;
    border-color: var(--primary);
}

.list-group-item-action {
    cursor: pointer;
}

/* --- Login Page --- */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    padding: 2rem;
}

.login-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border-color);
}

.login-card .card-header {
    background: transparent !important;
    border-bottom: none;
    padding: 0 0 1.5rem 0;
    text-align: center;
}

.login-card .card-header h4 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-card .card-body {
    padding: 0;
}

.login-card .form-control {
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
}

.login-card .btn {
    padding: 0.7rem;
    font-size: 1rem;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}

.empty-state i {
    font-size: 3.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

/* --- Stats / Metric Cards --- */
.stat-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- Toolbar / Action Bar --- */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table {
        font-size: 0.8rem;
    }

    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .action-bar .btn {
        width: 100%;
    }

    .login-card {
        padding: 1.5rem;
    }
}

/* --- Print Styles --- */
@media print {
    .navbar, .btn, form, .action-bar {
        display: none !important;
    }
    .card {
        box-shadow: none !important;
        border: 1px solid #dee2e6;
    }
    body {
        background: #fff;
    }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .alert, .stat-card {
    animation: fadeIn 0.3s ease-out;
}

/* --- Version Badge --- */
.version-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    white-space: nowrap;
    line-height: 1.4;
}

/* --- Tooltip for action buttons --- */
.btn[title] {
    position: relative;
}

/* --- Section divider --- */
.section-divider {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 1.5rem 0;
    opacity: 0.5;
}