:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --background-color: #f8f9fa;
    --text-color: #212529;
    --border-color: #dee2e6;
    --success-color: #4bb543;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

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

.subtitle {
    color: #6c757d;
    font-size: 1.1rem;
}

.feed-controls {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--secondary-color);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

textarea {
    min-height: 150px;
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

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

.btn-generate {
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-generate:hover {
    background-color: #e9ecef;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
    }
    
    .container {
        padding: 1rem;
    }
}