/* Container Utama */
.so-container {
    max-width: 800px;
    margin: 0 auto;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.so-container h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
}

/* Grid untuk Daftar Surat */
.so-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

/* Kartu Jenis Surat */
.so-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #eaeaea;
}

.so-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.so-card h3 {
    margin: 0 0 15px 0;
    font-size: 18px;
    color: #34495e;
}

/* Tombol */
.so-btn-pilih, .so-btn-submit {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.3s;
    width: 100%;
}

.so-btn-pilih:hover, .so-btn-submit:hover {
    background-color: #2980b9;
}

.so-btn-back {
    background: none;
    border: none;
    color: #7f8c8d;
    cursor: pointer;
    font-size: 14px;
    margin-bottom: 20px;
    padding: 0;
}

.so-btn-back:hover {
    color: #2c3e50;
    text-decoration: underline;
}

/* Form Input */
.so-form-group {
    margin-bottom: 20px;
    text-align: left;
}

.so-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 14px;
}

.so-form-group input[type="text"],
.so-form-group input[type="number"],
.so-form-group input[type="file"],
.so-form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s;
    background: #fff;
}

.so-form-group input:focus,
.so-form-group textarea:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.so-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.so-btn-submit {
    margin-top: 10px;
    padding: 14px;
    font-size: 16px;
}

/* Pesan Notifikasi */
#so-message {
    margin-top: 20px;
    text-align: center;
}

.so-success {
    background: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #c3e6cb;
}

.so-error {
    background: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #f5c6cb;
}