/* CSS Variables and Root Styles */
:root {
    --bg-color: #0a0a0a;
    --primary-color: #8b45be;
    --secondary-color: #6366f1;
    --accent-color: rgba(139, 69, 190, 0.1);
    --text-color: #ffffff;
    --text-light: #a0a0a0;
    --glass-background: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-background: rgba(255, 255, 255, 0.08);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.2);
    --shadow-heavy: 0 25px 50px rgba(0, 0, 0, 0.4);
    
    /* Status Colors */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    /* Status Backgrounds */
    --success-bg: rgba(16, 185, 129, 0.1);
    --error-bg: rgba(239, 68, 68, 0.1);
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info-bg: rgba(59, 130, 246, 0.1);
}

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

body {
    margin: 0;
    padding: 0;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Animation */
#background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
}

.particle {
    position: absolute;
    background: radial-gradient(circle, rgba(139, 69, 190, 0.8) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s linear infinite;
    pointer-events: none;
}

.particle.small { 
    width: 4px; 
    height: 4px; 
}

.particle.medium { 
    width: 8px; 
    height: 8px; 
}

.particle.large { 
    width: 12px; 
    height: 12px; 
}

.particle.glow { 
    width: 6px; 
    height: 6px; 
    box-shadow: 0 0 20px rgba(139, 69, 190, 0.6);
}

@keyframes float {
    0% { 
        transform: translateY(100vh) rotate(0deg); 
        opacity: 0; 
    }
    10% { 
        opacity: 1; 
    }
    90% { 
        opacity: 1; 
    }
    100% { 
        transform: translateY(-100vh) rotate(360deg); 
        opacity: 0; 
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Login Screen Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-color);
    position: relative;
    overflow: hidden;
    padding: 1rem;
}

.login-form {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 25px;
    padding: 3rem;
    box-shadow: var(--shadow-heavy);
    border: 1px solid var(--glass-border);
    width: 100%;
    max-width: 400px;
    text-align: center;
    position: relative;
    z-index: 10;
    animation: fadeInUp 0.8s ease-out;
}

.login-logo {
    margin-bottom: 2rem;
}

.login-logo h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.login-logo p {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: 0;
    font-weight: 500;
}

.login-input {
    width: 100%;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border: 2px solid var(--glass-border);
    border-radius: 15px;
    background: var(--card-background);
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.login-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 69, 190, 0.2);
    transform: translateY(-2px);
}

.login-input::placeholder {
    color: var(--text-light);
    opacity: 0.8;
}

.login-btn {
    width: 100%;
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
    font-family: inherit;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.login-btn:hover::before {
    left: 100%;
}

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

.login-error {
    background: var(--error-bg);
    color: var(--error-color);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border: 1px solid rgba(239, 68, 68, 0.3);
    display: none;
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

/* Admin Dashboard Layout */
.admin-container {
    display: flex;
    min-height: 100vh;
    background: var(--bg-color);
}

/* Sidebar Styles */
.admin-sidebar {
    width: 320px;
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-right: 1px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0;
}

.admin-sidebar::-webkit-scrollbar {
    width: 6px;
}

.admin-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.admin-sidebar::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.admin-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.admin-logo {
    padding: 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--glass-border);
    background: linear-gradient(135deg, var(--glass-background), transparent);
}

.admin-logo h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-logo p {
    color: var(--text-light);
    font-size: 0.85rem;
    margin: 0;
    font-weight: 500;
}

/* Navigation Styles */
.admin-nav {
    padding: 1rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: var(--text-color) !important;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    background: none;
    width: 100%;
    cursor: pointer;
    font-weight: 600;
    border-left: 3px solid transparent;
    font-size: 14px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(139, 69, 190, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-item:hover {
    background: rgba(139, 69, 190, 0.15);
    transform: translateX(5px);
    border-left-color: var(--primary-color);
    color: var(--text-color) !important;
}

.nav-item:hover::before {
    opacity: 1;
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white !important;
    border-left-color: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(139, 69, 190, 0.4);
    transform: translateX(3px);
}

.nav-item.active::before {
    opacity: 0;
}

.nav-item i {
    margin-right: 15px;
    width: 20px;
    font-size: 16px;
    text-align: center;
    flex-shrink: 0;
    color: inherit !important;
    transition: transform 0.3s ease;
}

.nav-item:hover i {
    transform: scale(1.1);
}

.nav-item span {
    flex: 1;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: inherit !important;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-item.active span,
.nav-item.active i {
    color: white !important;
}

/* Main Content Area */
.admin-main {
    flex: 1;
    margin-left: 320px;
    padding: 1.5rem;
    transition: margin-left 0.3s ease;
    background: var(--bg-color);
    min-height: 100vh;
}

/* Header Styles */
.admin-header {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-medium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--glass-border);
    animation: fadeInUp 0.6s ease-out;
}

.admin-header h2 {
    color: var(--text-color);
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.admin-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    align-items: center;
}

/* Section Management */
.admin-section {
    display: none;
    animation: fadeInUp 0.6s ease-out;
}

.admin-section.active {
    display: block;
}

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

.stat-card {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 69, 190, 0.1), transparent);
    transition: all 0.6s;
}

.stat-card:hover::before {
    left: 100%;
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Table Styles */
.admin-table-container {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow-medium);
    margin-bottom: 1.5rem;
    border: 1px solid var(--glass-border);
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.admin-table-container h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-wrapper {
    overflow-x: auto;
    border-radius: 10px;
    margin-top: 1rem;
}

.table-wrapper::-webkit-scrollbar {
    height: 8px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: var(--card-background);
    border-radius: 4px;
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.admin-table th,
.admin-table td {
    padding: 1rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-color);
    font-size: 0.9rem;
    vertical-align: middle;
}

.admin-table th {
    background: var(--accent-color);
    color: var(--text-color);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.admin-table tr {
    transition: background-color 0.2s ease;
}

.admin-table tbody tr:hover {
    background: rgba(139, 69, 190, 0.08);
    transform: scale(1.001);
}

.admin-table tbody tr:hover td {
    color: var(--text-color);
}

/* Form Styles */
.admin-form {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-medium);
    margin-bottom: 1.5rem;
    border: 1px solid var(--glass-border);
    animation: fadeInUp 0.6s ease-out;
}

.admin-form h3 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.9rem;
    border: 2px solid var(--glass-border);
    border-radius: 10px;
    background: var(--card-background);
    color: var(--text-color);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    font-family: inherit;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 69, 190, 0.2);
    transform: translateY(-1px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
    opacity: 0.8;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Button Styles */
.btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-align: center;
    font-size: 0.9rem;
    min-width: 100px;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    text-transform: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: var(--card-background);
    color: var(--text-color);
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    background: var(--glass-background);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, var(--error-color), #dc2626);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
    color: white;
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
}

.btn-small {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
    min-width: auto;
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Product Image */
.product-image {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.product-image:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
}

/* Stock Status */
.stock-status {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.stock-in {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.stock-low {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.stock-out {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Bento Grid Layout */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.bento-item {
    background: var(--card-background);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.bento-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 69, 190, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.bento-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.bento-item:hover::before {
    opacity: 1;
}

.bento-item h4 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.bento-item p {
    color: var(--text-light);
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.bento-item strong {
    color: var(--text-color);
    font-weight: 600;
}

/* User Info */
.user-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 1rem;
    background: var(--card-background);
    border-radius: 25px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.user-info:hover {
    background: var(--glass-background);
    transform: translateY(-1px);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(139, 69, 190, 0.3);
}

.user-name {
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.logout-btn:hover {
    background: var(--error-bg);
    color: var(--error-color);
    transform: scale(1.1);
}

/* Search Input */
#product-search {
    padding: 0.7rem 1rem !important;
    border: 2px solid var(--glass-border) !important;
    border-radius: 25px !important;
    margin-right: 0.8rem !important;
    background: var(--card-background) !important;
    backdrop-filter: blur(15px) !important;
    color: var(--text-color) !important;
    width: 220px;
    font-size: 0.9rem !important;
    transition: all 0.3s ease !important;
}

#product-search:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(139, 69, 190, 0.2) !important;
    width: 250px !important;
}

#product-search::placeholder {
    color: var(--text-light) !important;
    opacity: 0.8 !important;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: fadeInUp 0.3s ease-out;
}

.modal {
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-heavy);
    animation: slideIn 0.4s ease-out;
}

.modal::-webkit-scrollbar {
    width: 6px;
}

.modal::-webkit-scrollbar-track {
    background: transparent;
}
.modal::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.modal::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.modal-header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--glass-background), transparent);
}

.modal-header h3 {
    color: var(--text-color);
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.2rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--error-bg);
    color: var(--error-color);
    transform: scale(1.1);
}

.modal-content {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem 1.5rem;
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    border-top: 1px solid var(--glass-border);
    background: linear-gradient(transparent, var(--glass-background));
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--glass-background);
    backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 1rem 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-heavy);
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 380px;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 500;
    font-size: 0.9rem;
    border-left-width: 4px;
    border-left-style: solid;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, var(--success-bg), var(--glass-background));
}

.notification.error {
    border-left-color: var(--error-color);
    background: linear-gradient(135deg, var(--error-bg), var(--glass-background));
}

.notification.warning {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, var(--warning-bg), var(--glass-background));
}

.notification.info {
    border-left-color: var(--info-color);
    background: linear-gradient(135deg, var(--info-bg), var(--glass-background));
}

.notification button {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 1.1rem;
    margin-left: auto;
    padding: 0.2rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.notification button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    transform: scale(1.1);
}

/* Utility Classes */
.w-100 {
    width: 100% !important;
}

.h-100 {
    height: 100% !important;
}

.text-center {
    text-align: center !important;
}

.text-left {
    text-align: left !important;
}

.text-right {
    text-align: right !important;
}

.d-flex {
    display: flex !important;
}

.d-block {
    display: block !important;
}

.d-none {
    display: none !important;
}

.justify-center {
    justify-content: center !important;
}

.align-center {
    align-items: center !important;
}

.gap-1 {
    gap: 0.5rem !important;
}

.gap-2 {
    gap: 1rem !important;
}

.gap-3 {
    gap: 1.5rem !important;
}

.m-0 {
    margin: 0 !important;
}

.mb-1 {
    margin-bottom: 0.5rem !important;
}

.mb-2 {
    margin-bottom: 1rem !important;
}

.mb-3 {
    margin-bottom: 1.5rem !important;
}

.mt-1 {
    margin-top: 0.5rem !important;
}

.mt-2 {
    margin-top: 1rem !important;
}

.mt-3 {
    margin-top: 1.5rem !important;
}

.p-0 {
    padding: 0 !important;
}

.p-1 {
    padding: 0.5rem !important;
}

.p-2 {
    padding: 1rem !important;
}

.p-3 {
    padding: 1.5rem !important;
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 69, 190, 0.2), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.spinner {
    border: 3px solid var(--glass-border);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    gap: 0.3rem;
}

.badge-primary {
    background: rgba(139, 69, 190, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(139, 69, 190, 0.3);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: var(--info-color);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Code Blocks */
code {
    background: var(--card-background);
    color: var(--primary-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.85em;
    border: 1px solid var(--glass-border);
}

pre {
    background: var(--card-background);
    color: var(--text-color);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--glass-border);
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.4;
}

pre::-webkit-scrollbar {
    height: 6px;
}

pre::-webkit-scrollbar-track {
    background: var(--glass-background);
    border-radius: 3px;
}

pre::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

pre::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .admin-sidebar {
        width: 280px;
    }
    
    .admin-main {
        margin-left: 280px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: none;
    }

    .admin-sidebar.show {
        transform: translateX(0);
        box-shadow: var(--shadow-heavy);
    }

    .admin-main {
        margin-left: 0;
        padding: 1rem;
    }

    .admin-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .admin-header h2 {
        font-size: 1.5rem;
    }

    .admin-actions {
        justify-content: center;
        width: 100%;
        flex-wrap: wrap;
    }

    .user-info {
        order: -1;
        margin-bottom: 0.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.8rem;
    }

    .stat-icon {
        font-size: 2rem;
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    #product-search {
        width: 100% !important;
        margin-bottom: 0.5rem !important;
        margin-right: 0 !important;
    }

    .login-form {
        margin: 1rem;
        padding: 2rem 1.5rem;
    }

    .login-logo h1 {
        font-size: 2rem;
    }

    .admin-table-container {
        padding: 1rem;
    }

    .admin-form {
        padding: 1.5rem;
    }

    .modal {
        width: 95%;
        margin: 1rem;
    }

    .modal-header {
        padding: 1rem;
    }

    .modal-content {
        padding: 1rem;
    }

    .notification {
        top: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: none;
        transform: translateY(-100%);
    }

    .notification.show {
        transform: translateY(0);
    }

    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
    }

    .btn-small {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 1rem 0.8rem;
    }
    
    .stat-value {
        font-size: 1.6rem;
    }

    .stat-icon {
        font-size: 1.8rem;
    }

    .admin-header h2 {
        font-size: 1.3rem;
    }

    .login-form {
        padding: 1.5rem;
    }

    .login-logo h1 {
        font-size: 1.8rem;
    }

    .admin-actions {
        gap: 0.5rem;
    }

    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
        min-width: 80px;
    }

    .btn-small {
        padding: 0.4rem 0.6rem;
        font-size: 0.7rem;
        min-width: 60px;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.6rem 0.4rem;
        font-size: 0.8rem;
    }

    .product-image {
        width: 40px;
        height: 40px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.7rem;
        font-size: 0.85rem;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --glass-border: rgba(255, 255, 255, 0.3);
        --text-light: #cccccc;
    }
    
    .nav-item {
        border-left-width: 4px;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .particle {
        animation: none;
    }
    
    .stat-card::before {
        display: none;
    }
    
    .btn::before {
        display: none;
    }
}

/* Focus styles for accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.nav-item:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: -2px;
}

/* Print styles */
@media print {
    .admin-sidebar,
    .admin-actions,
    .modal-overlay {
        display: none !important;
    }
    
    .admin-main {
        margin-left: 0 !important;
    }
    
    .admin-header,
    .admin-table-container,
    .admin-form {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    :root {
        --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 25px 50px rgba(0, 0, 0, 0.6);
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background: rgba(139, 69, 190, 0.3);
    color: var(--text-color);
}

::-moz-selection {
    background: rgba(139, 69, 190, 0.3);
    color: var(--text-color);
}

/* Placeholder animations */
@keyframes placeholder-glow {
    0% {
        background-color: var(--glass-background);
    }
    50% {
        background-color: var(--card-background);
    }
    100% {
        background-color: var(--glass-background);
    }
}

.placeholder {
    animation: placeholder-glow 1.5s ease-in-out infinite;
    background-color: var(--glass-background);
    border-radius: 4px;
    min-height: 1em;
}

/* Custom checkbox and radio styles */
input[type="checkbox"],
input[type="radio"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--glass-border);
    border-radius: 4px;
    background: var(--card-background);
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
}

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
}

/* Form validation styles */
.form-group input:invalid,
.form-group select:invalid,
.form-group textarea:invalid {
    border-color: var(--error-color);
}

.form-group input:valid,
.form-group select:valid,
.form-group textarea:valid {
    border-color: var(--success-color);
}

.error-message {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-top: 0.3rem;
    display: block;
}

.success-message {
    color: var(--success-color);
    font-size: 0.8rem;
    margin-top: 0.3rem;
    display: block;
}