/* Global Styles */
:root {
    --primary-color: #4CAF50;
    --secondary-color: #388E3C;
    --accent-color: #8BC34A;
    --danger-color: #F44336;
    --warning-color: #FFC107;
    --success-color: #4CAF50;
    --text-color: #333;
    --light-text: #fff;
    --border-color: #ddd;
    --bg-light: #f9f9f9;
    --bg-dark: #333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.login-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 400px;
    text-align: center;
}

.login-form h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.login-form h2 {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-weight: 400;
}

.input-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 15px;
    color: var(--primary-color);
}

.input-group input {
    width: 100%;
    padding: 12px 20px 12px 45px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--secondary-color);
}

.error {
    color: var(--danger-color);
    margin-top: 15px;
    font-size: 0.9rem;
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--bg-dark);
    color: var(--light-text);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 0 1rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-header h2 {
    color: var(--accent-color);
}

.nav-menu {
    list-style: none;
    padding: 1rem 0;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    color: var(--light-text);
    transition: all 0.3s ease;
}

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

.nav-link i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.active {
    background-color: var(--primary-color);
}

.main-content {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

.user-info {
    display: flex;
    align-items: center;
}

.user-info img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: 10px;
}

/* Cards and Widgets */
.card {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.stat-card {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    display: flex;
    align-items: center;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 1rem;
    font-size: 1.5rem;
}

.stat-icon.green {
    background-color: rgba(76, 175, 80, 0.2);
    color: var(--primary-color);
}

.stat-icon.orange {
    background-color: rgba(255, 152, 0, 0.2);
    color: #FF9800;
}

.stat-icon.red {
    background-color: rgba(244, 67, 54, 0.2);
    color: var(--danger-color);
}

.stat-icon.blue {
    background-color: rgba(33, 150, 243, 0.2);
    color: #2196F3;
}

.stat-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.stat-info p {
    color: #777;
    font-size: 0.9rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

table th, table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: var(--bg-light);
    color: var(--secondary-color);
}

table tbody tr:hover {
    background-color: rgba(139, 195, 74, 0.05);
}

.status {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    display: inline-block;
}

.status.in-stock {
    background-color: rgba(76, 175, 80, 0.2);
    color: var(--success-color);
}

.status.low-stock {
    background-color: rgba(255, 193, 7, 0.2);
    color: var(--warning-color);
}

.status.out-of-stock {
    background-color: rgba(244, 67, 54, 0.2);
    color: var(--danger-color);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

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

.btn-danger:hover {
    background-color: #d32f2f;
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--text-color);
}

.btn-warning:hover {
    background-color: #ffb300;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: relative;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
}