:root {
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --danger: #f44336;
    --bg: #f4f7f6;
    --text: #333;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 500px;
}

h1 { text-align: center; color: var(--primary); }

#install-button {
    display: none;
    width: 100%;
    background: #4caf50;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    margin-bottom: 20px;
    cursor: pointer;
}

form {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

input, textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

#btn-save {
    width: 100%;
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

#btn-save:hover { background-color: var(--primary-dark); }

.card {
    background: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 5px solid var(--primary);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.card h3 { margin: 0 0 5px 0; }
.card p { margin: 5px 0; font-size: 14px; }
.card small { color: #888; display: block; margin-bottom: 10px; }

.btn-delete {
    background: var(--danger);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
}