/* ============================================================
   KILO WHOLESALE - Reusable Components
   ============================================================ */

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}
.card:hover {
    border-color: rgba(148, 163, 184, 0.25);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 { font-size: 1.05rem; font-weight: 600; }
.card-body { }

/* ---------- Stat Cards ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--stat-color, var(--primary)), transparent);
    opacity: 0.6;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(148, 163, 184, 0.25);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
}

.stat-card .stat-icon.green { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.stat-card .stat-icon.red { background: rgba(244, 63, 94, 0.1); color: var(--accent-red); }
.stat-card .stat-icon.amber { background: rgba(245, 158, 11, 0.1); color: var(--accent-amber); }
.stat-card .stat-icon.blue { background: rgba(59, 130, 246, 0.1); color: var(--accent-blue); }

.stat-card .stat-info { flex: 1; min-width: 0; }
.stat-card .stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
    margin-bottom: 6px;
}
.stat-card .stat-value {
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
}
.stat-card .stat-change {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.stat-card .stat-change.up { color: var(--accent-green); }
.stat-card .stat-change.down { color: var(--accent-red); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.4;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #059669);
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}
.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-red), #e11d48);
    color: white;
    box-shadow: 0 2px 8px rgba(244, 63, 94, 0.3);
}
.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(244, 63, 94, 0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: var(--bg-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 12px;
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

.btn:disabled, .btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn .spinner {
    width: 16px; height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: none;
}
.btn.loading .spinner { display: block; }
.btn.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Form Elements ---------- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

textarea.form-control { resize: vertical; min-height: 100px; }

.form-error {
    font-size: 0.78rem;
    color: var(--accent-red);
    margin-top: 4px;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ---------- Tables ---------- */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
}

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

/* ---------- Status Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
}
.badge-approved {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}
.badge-rejected {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-red);
}
.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

/* ---------- Alerts ---------- */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    animation: slideIn 0.3s ease;
}

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

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--accent-green-light);
}
.alert-error,
.alert-danger {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.2);
    color: var(--accent-red-light);
}
.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--accent-amber-light);
}
.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
}

/* ---------- Toggle Switch ---------- */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--bg-surface);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-fast);
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    left: 3px; bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-fast);
}
.toggle-switch input:checked + .toggle-slider { background: var(--primary); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.4; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 0.875rem; }

/* ---------- Modal ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.modal-overlay.show { display: flex; }

.modal {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 1.1rem; }
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px;
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* ---------- Responsive Table Cards (mobile) ---------- */
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px; }
    .stat-card .stat-value { font-size: 1.35rem; }
    .stat-card .stat-icon { width: 40px; height: 40px; font-size: 1.1rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}

/* ---------- Bootstrap Compatibility Tables ---------- */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.table th {
    padding: 14px 18px;
    text-align: left;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    background: rgba(15, 23, 42, 0.4);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
.table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: middle;
}
.table tbody tr {
    transition: background var(--transition-fast);
}
.table-hover tbody tr:hover {
    background: var(--bg-hover);
}
.table-bordered th,
.table-bordered td {
    border: 1px solid var(--border-color);
}
.table-sm th,
.table-sm td {
    padding: 8px 12px;
}
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ============================================================
   MISSING CSS VARIABLES (semantic aliases)
   ============================================================ */
:root {
    --success-color:  var(--accent-green);
    --success-text:   var(--accent-green-light);
    --danger-color:   var(--accent-red);
    --danger-text:    var(--accent-red-light);
    --warning-color:  var(--accent-amber);
    --warning-text:   var(--accent-amber-light);
    --primary-color:  var(--primary-light);
    --text-link:      var(--primary-light);
}

/* ============================================================
   CARD BODY PADDING
   ============================================================ */
.card-body {
    padding: 24px;
}

/* ============================================================
   BUTTON VARIANTS - MISSING
   ============================================================ */
.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary-light);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-icon:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

.btn-success-outline {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-green-light);
    border-color: rgba(16, 185, 129, 0.35);
}
.btn-success-outline:hover {
    background: rgba(16, 185, 129, 0.22);
    border-color: var(--accent-green-light);
}

.btn-sm.btn-icon {
    width: 32px;
    height: 32px;
}

/* ============================================================
   SPACING UTILITIES
   ============================================================ */
.p-0  { padding: 0 !important; }
.p-2  { padding: 0.5rem !important; }
.p-3  { padding: 1rem !important; }
.p-4  { padding: 1.5rem !important; }
.p-5  { padding: 3rem !important; }
.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.ms-auto { margin-inline-start: auto !important; }
.me-auto { margin-inline-end: auto !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: 0.5rem !important; }
.gap-3 { gap: 0.75rem !important; }

/* ============================================================
   TEXT UTILITIES - MISSING
   ============================================================ */
.text-sm       { font-size: 0.85rem !important; }
.text-xs       { font-size: 0.75rem !important; }
.text-secondary{ color: var(--text-secondary) !important; }
.text-success  { color: var(--accent-green) !important; }
.text-info     { color: var(--accent-blue) !important; }
.fw-bold       { font-weight: 700 !important; }
.fw-semibold   { font-weight: 600 !important; }

/* ============================================================
   DISPLAY UTILITIES - MISSING
   ============================================================ */
.d-block  { display: block !important; }
.d-grid   { display: grid !important; }
.d-inline { display: inline !important; }
.flex-wrap { flex-wrap: wrap !important; }

/* ============================================================
   MODAL - support both .show and d-none removal patterns
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    animation: overlayFadeIn 0.2s ease;
}

/* Show via .show class */
.modal-overlay.show {
    display: flex;
}

/* Keep d-none removal pattern working - when d-none is removed
   the inline style on the element takes over (display:flex). */

.modal-sheet {
    background: var(--bg-card-solid);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.25s cubic-bezier(0.16,1,0.3,1);
}

.modal-sheet.modal-sm  { max-width: 360px; }
.modal-sheet.modal-lg  { max-width: 640px; }

@keyframes overlayFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-sheet .modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.modal-sheet .modal-header h3,
.modal-sheet .modal-header h4 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
}
.modal-sheet .modal-body  { padding: 20px 24px; }
.modal-sheet .modal-footer {
    padding: 16px 24px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}
.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    line-height: 1;
    transition: color var(--transition-fast);
}
.modal-close-btn:hover { color: var(--text-primary); }

/* ============================================================
   EMPTY STATE - enhanced
   ============================================================ */
.empty-state {
    text-align: center;
    padding: 56px 24px;
    color: var(--text-muted);
}
.empty-state .empty-icon {
    opacity: 0.35;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.empty-state h3, .empty-state h4 {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}
.empty-state p {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 380px;
    margin: 0 auto 24px;
}

/* ============================================================
   PAGE HEADER BAR
   ============================================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.page-header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}
.page-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* ============================================================
   BADGE - additional variants
   ============================================================ */
.badge-paid       { background: rgba(16,185,129,0.15); color: var(--accent-green-light); }
.badge-unpaid     { background: rgba(244,63,94,0.15);  color: var(--accent-red-light); }
.badge-partial    { background: rgba(245,158,11,0.15); color: var(--accent-amber-light); }

/* ============================================================
   STATUS BADGE HELPERS (used in invoices/list.php)
   ============================================================ */
.status-paid     { background: rgba(16,185,129,0.15); color: var(--accent-green-light); }
.status-partial  { background: rgba(245,158,11,0.15); color: var(--accent-amber-light); }
.status-unpaid   { background: rgba(244,63,94,0.15);  color: var(--accent-red-light); }

/* ============================================================
   BG UTILITY
   ============================================================ */
.bg-card { background: var(--bg-card) !important; }

/* ============================================================
   FORM ROW GRID
   ============================================================ */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 560px) {
    .form-row { grid-template-columns: 1fr; }
}

/* ============================================================
   CHECK / SWITCH INPUTS
   ============================================================ */
.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 10px 0;
}
.form-check-input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
}
.form-check-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
}

/* ============================================================
   HORIZONTAL RULE
   ============================================================ */
hr, .divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 20px 0;
}

/* ============================================================
   RESPONSIVE TABLE MOBILE CARD FALLBACK
   ============================================================ */
@media (max-width: 640px) {
    .table th { font-size: 0.72rem; padding: 10px 12px; }
    .table td { padding: 10px 12px; font-size: 0.85rem; }
}