/* Base styles */
:root {
    --primary: #2563EB;
    --secondary: #475569;
    --background: #F8FAFC;
    --text: #1E293B;
    --success: #22C55E;
    --danger: #EF4444;
    --spacing: 16px;
    --border-radius: 6px;
    --box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text);
    background-color: var(--background);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing);
    color: var(--text);
}

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

/* Button styles */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

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

.btn-secondary:hover {
    background-color: #374151;
}

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

.btn-success:hover {
    background-color: #16a34a;
}

.btn-small {
    padding: 4px 8px;
    font-size: 14px;
}

/* Login page */
.login-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing);
}

.login-form {
    background-color: white;
    padding: calc(var(--spacing) * 2);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
}

.login-form h1 {
    text-align: center;
    margin-bottom: calc(var(--spacing) * 2);
}

/* Form styles */
.form-group {
    margin-bottom: var(--spacing);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: inherit;
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    margin-top: calc(var(--spacing) * 2);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing);
}

/* Dashboard */
.dashboard-container {
    padding: var(--spacing);
    max-width: 1200px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing);
    padding-bottom: var(--spacing);
    border-bottom: 1px solid #ddd;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.dashboard-content {
    margin-top: var(--spacing);
}

/* Table styles */
.table-container {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: var(--spacing);
    margin-bottom: var(--spacing);
}

.table-responsive {
    overflow-x: auto;
    margin-top: var(--spacing);
}

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

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    background-color: #f1f5f9;
    font-weight: 600;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background-color: #f8fafc;
}

/* Edit form */
.edit-form {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: calc(var(--spacing) * 2);
}

/* Message styles */
.error-message {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: var(--spacing);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing);
}

.success-message {
    background-color: #dcfce7;
    color: #15803d;
    padding: var(--spacing);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing);
}

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

/* Responsive styles */
@media (max-width: 768px) {
    .header-title h1 {
        font-size: 1.5rem;
    }
    
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}