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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
}

.container {
    min-height: 100vh;
}

/* Auth Pages */
.auth-container {
    max-width: 450px;
    margin: 50px auto;
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.auth-container h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.auth-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.auth-tabs .tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    background-color: #f0f0f0;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s;
}

.auth-tabs .tab.active {
    background-color: #007bff;
    color: white;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #007bff;
}

.btn {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

.error {
    color: #dc3545;
    margin: 10px 0;
    font-size: 14px;
}

.success {
    color: #28a745;
    margin: 10px 0;
    font-size: 14px;
}

/* Dashboard */
.dashboard {
    min-height: 100vh;
}

.dashboard-header {
    background-color: #007bff;
    color: white;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.dashboard-header h1 {
    font-size: 24px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-logout {
    padding: 8px 16px;
    background-color: white;
    color: #007bff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
}

.dashboard-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

.dashboard-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.nav-btn {
    padding: 12px 24px;
    background-color: white;
    border: 2px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
}

.nav-btn.active {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.inventory-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.inventory-card h3 {
    margin-bottom: 10px;
    color: #333;
}

.inventory-card p {
    margin: 5px 0;
    color: #666;
}

.btn-add {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

.btn-add:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.cart-section, .orders-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.cart-item {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    border-bottom: 1px solid #eee;
}

.btn-place-order {
    width: 100%;
    margin-top: 20px;
}

.order-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.order-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.status {
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}