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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

/* Login Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #333;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

button {
    width: 100%;
    padding: 0.75rem;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #5a67d8;
}

.error-message {
    background: #fee;
    color: #c53030;
    padding: 0.75rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    border: 1px solid #feb2b2;
}

/* Dashboard Styles */
.dashboard-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.dashboard-header {
    background: #4c51bf;
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.dashboard-header h1 {
    font-size: 1.5rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logout-btn, .back-btn {
    background: #e53e3e;
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.logout-btn:hover, .back-btn:hover {
    background: #c53030;
}

.back-btn {
    background: #38a169;
}

.back-btn:hover {
    background: #2f855a;
}

.dashboard-main {
    padding: 2rem;
}

.menu-options {
    display: grid;
    gap: 1.5rem;
}

.menu-option {
    background: #f7fafc;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    text-decoration: none;
    color: #2d3748;
    transition: all 0.3s;
}

.menu-option:hover {
    background: #edf2f7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.menu-option h3 {
    color: #4c51bf;
    margin-bottom: 0.5rem;
}

/* CRUD Styles */
.crud-container {
    display: grid;
    gap: 2rem;
}

.form-section, .table-section {
    background: #f7fafc;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.form-section h3, .table-section h3 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.table-responsive {
    overflow-x: auto;
}

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

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

th {
    background: #edf2f7;
    font-weight: bold;
    color: #4a5568;
}

.delete-btn {
    color: #e53e3e;
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    transition: background 0.3s;
}

.delete-btn:hover {
    background: #fed7d7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        text-align: center;
    }
    
    .user-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .menu-options {
        grid-template-columns: 1fr;
    }
    
    .form-group input {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-form {
        padding: 1.5rem;
        margin: 10px;
    }
    
    .dashboard-main {
        padding: 1rem;
    }
    
    .form-section, .table-section {
        padding: 1rem;
    }
}

input, select, textarea {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
            margin-bottom: 10px;
        }
        
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
        }