/* 
   IIBKAAL Retail Management System - Master Stylesheet
   Designed with Premium dark/light themes, sleek glassmorphism, POS card grid, and responsive retail dashboard.
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Theme: Dark (Default) */
    --bg-main: #0b0c10;
    --bg-card: #15171e;
    --bg-card-hover: #1e212b;
    --border-color: #232732;
    --text-primary: #ffffff;
    --text-secondary: #9fa5b5;
    --text-muted: #646a78;
    
    /* Dynamic Accent Color */
    --primary: #ff6b00; 
    --primary-glow: rgba(255, 107, 0, 0.15);
    --primary-light: #ff8533;
    
    --success: #00e676;
    --success-glow: rgba(0, 230, 118, 0.15);
    --warning: #ffb300;
    --warning-glow: rgba(255, 179, 0, 0.15);
    --danger: #ff1744;
    --danger-glow: rgba(255, 23, 68, 0.15);
    --info: #29b6f6;
    --info-glow: rgba(41, 182, 246, 0.15);
    
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 80px;
    --header-height: 70px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 15px var(--primary-glow);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 18px;
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-main: #f4f6fa;
    --bg-card: #ffffff;
    --bg-card-hover: #fafbfc;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --primary-glow: rgba(255, 107, 0, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(149, 157, 165, 0.1);
    --shadow-lg: 0 16px 40px rgba(149, 157, 165, 0.15);
}

/* Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.5;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

a {
    color: inherit;
    text-decoration: none;
}

/* Layout */
#app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar styling */
#sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    transition: width var(--transition-normal), background-color var(--transition-normal);
}

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

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.2rem;
    box-shadow: 0 0 12px var(--primary-glow);
    flex-shrink: 0;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity var(--transition-fast);
    letter-spacing: 0.05em;
}

#sidebar.collapsed .brand-name {
    opacity: 0;
    pointer-events: none;
}

.sidebar-menu {
    list-style: none;
    padding: 15px 12px;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar-item {
    margin-bottom: 4px;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-secondary);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 0.92rem;
    gap: 14px;
    transition: all var(--transition-fast);
}

.sidebar-item a i {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.sidebar-item a:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
}

.sidebar-item a:hover i {
    color: var(--primary);
}

.sidebar-item.active > a:not(.sidebar-dropdown-toggle) {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff !important;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.sidebar-item.active > a:not(.sidebar-dropdown-toggle) i {
    color: #ffffff !important;
}

/* Sidebar Dropdown & Submenu */
.sidebar-dropdown {
    position: relative;
}

.sidebar-dropdown-toggle {
    cursor: pointer;
    user-select: none;
}

.sidebar-dropdown-toggle .dropdown-arrow {
    margin-left: auto;
    font-size: 0.78rem;
    color: var(--text-muted);
    transition: transform 0.25s ease, color 0.2s ease;
}

.sidebar-dropdown.open > .sidebar-dropdown-toggle .dropdown-arrow {
    transform: rotate(90deg);
    color: var(--primary);
}

.sidebar-dropdown.active > .sidebar-dropdown-toggle {
    background: rgba(255, 107, 0, 0.08);
    color: var(--primary);
    border: 1px solid rgba(255, 107, 0, 0.2);
}

.sidebar-dropdown.active > .sidebar-dropdown-toggle i:first-child {
    color: var(--primary);
}

.sidebar-submenu {
    list-style: none;
    padding: 4px 0 4px 12px;
    margin: 4px 0 6px 14px;
    border-left: 2px solid var(--border-color);
    display: none;
    flex-direction: column;
    gap: 3px;
}

.sidebar-dropdown.open .sidebar-submenu {
    display: flex;
    animation: fadeInSlideDown 0.22s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.sidebar-subitem a {
    display: flex;
    align-items: center;
    padding: 9px 12px;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    font-size: 0.88rem;
    gap: 10px;
    transition: all var(--transition-fast);
}

.sidebar-subitem a i {
    font-size: 0.95rem;
    width: 20px;
    text-align: center;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.sidebar-subitem a:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
}

.sidebar-subitem a:hover i {
    color: var(--primary);
}

.sidebar-subitem.active a {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
    color: #ffffff !important;
    font-weight: 600;
    box-shadow: 0 3px 12px var(--primary-glow);
}

.sidebar-subitem.active a i {
    color: #ffffff !important;
}

@keyframes fadeInSlideDown {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#sidebar.collapsed .sidebar-item span,
#sidebar.collapsed .sidebar-dropdown-toggle .dropdown-arrow,
#sidebar.collapsed .sidebar-submenu {
    display: none !important;
}

.sidebar-footer {
    padding: 15px 12px;
    border-top: 1px solid var(--border-color);
}

/* Main Content Wrapper */
#main-wrapper {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

#sidebar.collapsed ~ #main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

/* Top Header */
#top-header {
    height: var(--header-height);
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 90;
    transition: background-color var(--transition-normal);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.menu-toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--border-radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.menu-toggle-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
}

.header-title h2 {
    font-size: 1.35rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle-btn, .notification-bell {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.theme-toggle-btn:hover, .notification-bell:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.notification-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--danger);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--danger);
}

.notification-dropdown {
    position: absolute;
    top: 55px;
    right: 0;
    width: 330px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    z-index: 200;
    overflow: hidden;
}

.notification-dropdown.active {
    display: flex;
}

.noti-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.noti-list {
    max-height: 300px;
    overflow-y: auto;
}

.noti-item {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    align-items: flex-start;
    transition: background-color var(--transition-fast);
}

.noti-item:hover {
    background-color: var(--bg-card-hover);
}

.noti-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.noti-icon.warning { background: var(--warning-glow); color: var(--warning); }
.noti-icon.danger { background: var(--danger-glow); color: var(--danger); }
.noti-icon.info { background: var(--info-glow); color: var(--info); }

/* Main Container Area */
.content-container {
    padding: 28px;
    flex-grow: 1;
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 107, 0, 0.4);
    box-shadow: var(--shadow-md);
}

.stat-card:hover::before {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.stat-info h3 {
    font-size: 2rem;
    margin-top: 4px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.stat-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.stat-icon.primary { background: linear-gradient(135deg, rgba(255,107,0,0.2), rgba(255,107,0,0.05)); color: var(--primary); border: 1px solid rgba(255,107,0,0.3); }
.stat-icon.success { background: linear-gradient(135deg, rgba(0,230,118,0.2), rgba(0,230,118,0.05)); color: var(--success); border: 1px solid rgba(0,230,118,0.3); }
.stat-icon.warning { background: linear-gradient(135deg, rgba(255,179,0,0.2), rgba(255,179,0,0.05)); color: var(--warning); border: 1px solid rgba(255,179,0,0.3); }
.stat-icon.danger { background: linear-gradient(135deg, rgba(255,23,68,0.2), rgba(255,23,68,0.05)); color: var(--danger); border: 1px solid rgba(255,23,68,0.3); }
.stat-icon.info { background: linear-gradient(135deg, rgba(41,182,246,0.2), rgba(41,182,246,0.05)); color: var(--info); border: 1px solid rgba(41,182,246,0.3); }

/* Card Component */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 28px;
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
}

.card-title {
    font-size: 1.15rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title i {
    color: var(--primary);
}

.card-body {
    padding: 24px;
}

/* Badges */
.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.badge-active, .badge-success { background: var(--success-glow); color: var(--success); border: 1px solid rgba(0,230,118,0.3); }
.badge-warning, .badge-low_stock { background: var(--warning-glow); color: var(--warning); border: 1px solid rgba(255,179,0,0.3); }
.badge-danger, .badge-out_of_stock, .badge-expired { background: var(--danger-glow); color: var(--danger); border: 1px solid rgba(255,23,68,0.3); }
.badge-info, .badge-held { background: var(--info-glow); color: var(--info); border: 1px solid rgba(41,182,246,0.3); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff;
    box-shadow: 0 4px 12px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--primary-glow);
}

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

.btn-success { background: var(--success); color: #000; font-weight:800; }
.btn-success:hover { background: #00c853; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #d50000; }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: var(--border-radius-sm); }
.btn-block { width: 100%; }

/* Form Controls */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-secondary);
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}
.table th, .table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.table th {
    background-color: var(--bg-main);
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
}
.table tbody tr {
    transition: background-color var(--transition-fast);
}
.table tbody tr:hover {
    background-color: var(--bg-card-hover);
}

/* Alerts */
.alert-box {
    padding: 16px 20px;
    border-radius: var(--border-radius-md);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    transition: opacity 0.3s ease;
}
.alert-success { background: var(--success-glow); border: 1px solid rgba(0,230,118,0.3); color: var(--success); }
.alert-danger { background: var(--danger-glow); border: 1px solid rgba(255,23,68,0.3); color: var(--danger); }

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}
.modal-overlay.active {
    display: flex;
}
.modal-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes modalPop {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}
.modal-body {
    padding: 24px;
}
.modal-footer {
    padding: 18px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* POS Specific Layout */
.pos-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    height: calc(100vh - var(--header-height) - 56px);
}
@media (max-width: 1024px) {
    .pos-layout {
        grid-template-columns: 1fr;
        height: auto;
    }
}
.pos-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    max-height: calc(100vh - 230px);
    overflow-y: auto;
    padding-right: 4px;
}
.pos-product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}
.pos-product-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.pos-cart-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}
.pos-cart-items {
    flex-grow: 1;
    overflow-y: auto;
    padding: 16px;
}
.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

/* Confirmation Modal */
.confirm-modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center; z-index: 2000;
}
.confirm-modal-overlay.active { display: flex; }
.confirm-modal-box {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 20px; padding: 32px; width: 90%; max-width: 440px;
    text-align: center; box-shadow: var(--shadow-lg);
}
.confirm-modal-icon {
    width: 64px; height: 64px; border-radius: 50%; background: var(--danger-glow);
    color: var(--danger); display: flex; align-items: center; justify-content: center;
    font-size: 2rem; margin: 0 auto 20px auto; border: 1px solid rgba(255,23,68,0.3);
}

/* Tab Navigation System */
.tab-btn {
    padding: 10px 20px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
    user-select: none;
    white-space: nowrap;
}

.tab-btn i {
    font-size: 1rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.tab-btn:hover:not(.active) {
    color: var(--text-primary);
    background-color: var(--bg-card-hover);
}

.tab-btn:hover:not(.active) i {
    color: var(--primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
    color: #ffffff !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 15px var(--primary-glow) !important;
    border-color: var(--primary) !important;
}

.tab-btn.active i {
    color: #ffffff !important;
}

.tab-btn.active .badge {
    background: rgba(255, 255, 255, 0.25) !important;
    color: #ffffff !important;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeInSlideDown 0.22s ease forwards;
}

/* POS Payment Method Selector Buttons */
.pos-pay-btn {
    padding: 9px 12px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary) !important;
    background-color: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all var(--transition-fast);
    user-select: none;
    text-align: center;
}

.pos-pay-btn i {
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.pos-pay-btn:hover:not(.active) {
    color: var(--text-primary) !important;
    background-color: var(--bg-card-hover) !important;
    border-color: var(--primary) !important;
}

.pos-pay-btn:hover:not(.active) i {
    color: var(--primary);
}

.pos-pay-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
    color: #ffffff !important;
    font-weight: 700 !important;
    border-color: var(--primary) !important;
    box-shadow: 0 4px 14px var(--primary-glow) !important;
    transform: translateY(-1px);
}

.pos-pay-btn.active i {
    color: #ffffff !important;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS & TOUCH DEVICE STYLES (100% Mobile Ready)
   ========================================================================== */

/* Mobile Sidebar Backdrop Overlay */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 950;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.sidebar-backdrop.active {
    display: block;
    opacity: 1;
}

/* Tablet & Mobile Layout Breakpoint (<= 992px) */
@media screen and (max-width: 992px) {
    #sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        width: 280px !important;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        box-shadow: var(--shadow-lg);
    }

    #sidebar.mobile-open {
        transform: translateX(0) !important;
    }

    #sidebar.collapsed {
        transform: translateX(-100%) !important;
        width: 280px !important;
    }

    #sidebar.collapsed .brand-name,
    #sidebar.collapsed .sidebar-item span,
    #sidebar.collapsed .sidebar-dropdown-toggle .dropdown-arrow,
    #sidebar.collapsed .sidebar-submenu {
        display: block !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    #main-wrapper {
        margin-left: 0 !important;
        width: 100% !important;
        min-width: 0;
    }

    #sidebar.collapsed ~ #main-wrapper {
        margin-left: 0 !important;
    }

    .content-container {
        padding: 16px 14px !important;
    }

    .hero-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .calc-split-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
}

/* Mobile Devices Breakpoint (<= 768px) */
@media screen and (max-width: 768px) {
    #top-header {
        padding: 0 14px !important;
        height: 62px !important;
    }

    .header-title h2 {
        font-size: 1.05rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 170px;
    }

    .user-pill span {
        display: none !important;
    }

    .user-pill {
        padding: 6px !important;
    }

    .stats-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    .card {
        padding: 16px !important;
        border-radius: var(--border-radius-md) !important;
        margin-bottom: 18px !important;
    }

    .card-header {
        padding: 12px 14px !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 10px !important;
    }

    .card-body {
        padding: 14px !important;
    }

    /* Form Grids to Single Column on Mobile */
    form div[style*="grid-template-columns"],
    div[style*="grid-template-columns"]:not(.signatures-grid) {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    /* Tab Buttons Mobile Horizontal Scroll */
    div[style*="border-bottom:1px solid var(--border-color)"]:has(.tab-btn),
    .tab-nav-wrapper {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        flex-wrap: nowrap !important;
        padding-bottom: 8px !important;
    }

    .tab-btn, .quran-tab-btn {
        flex-shrink: 0 !important;
        font-size: 0.8rem !important;
        padding: 8px 14px !important;
    }

    /* Modal Responsive adjustments */
    .modal-card, .modal-box, .confirm-modal-box {
        width: 95% !important;
        max-width: 95% !important;
        padding: 16px !important;
        margin: 10px auto !important;
        border-radius: var(--border-radius-md) !important;
    }

    /* Table Horizontal Scroll Wrapper */
    .table-responsive {
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        margin-bottom: 10px !important;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-sm);
    }

    .table {
        min-width: 580px;
        font-size: 0.85rem !important;
    }

    .table th, .table td {
        padding: 8px 10px !important;
    }

    /* Arabic Ayah Typography on Small Screens */
    #ayah-arabic {
        font-size: 1.35rem !important;
        line-height: 1.85 !important;
    }

    /* Notification Dropdown Mobile Width */
    .notification-dropdown {
        width: 290px !important;
        right: -50px !important;
    }

    /* Button Wrap on Mobile */
    .btn {
        padding: 8px 14px !important;
        font-size: 0.85rem !important;
    }
}

/* Small Smartphone Breakpoint (<= 480px) */
@media screen and (max-width: 480px) {
    .header-title h2 {
        max-width: 120px !important;
        font-size: 0.95rem !important;
    }

    .hero-grid > div:first-child div[style*="font-size: 3.2rem"],
    div[style*="font-size: 3.2rem"] {
        font-size: 2.2rem !important;
    }

    div[style*="font-size: 2.2rem"] {
        font-size: 1.7rem !important;
    }

    .notification-dropdown {
        width: 270px !important;
        right: -80px !important;
    }

    #ayah-arabic {
        font-size: 1.2rem !important;
        line-height: 1.8 !important;
    }
}