/* voice.php 専用スタイル */
.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}

.filter-btn {
    padding: 10px 20px;
    border: 1px solid #ddd;
    background-color: #fff;
    color: #555;
    cursor: pointer;
    border-radius: 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background-color: #f5f5f5;
    border-color: #ccc;
}

.filter-btn.active {
    background-color: #ff3f00;
    color: #fff;
    border-color: #ff3f00;
}

.voice-card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    padding: 20px;
}

.voice-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 25px 30px;
    width: 100%;
    max-width: 450px;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.voice-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.voice-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 15px;
}

.voice-card-header i {
    font-size: 2em;
    color: #ff3f00; /* メインカラー */
    margin-right: 15px;
}

.voice-card-header h3 {
    margin: 0;
    font-size: 17px;
    color: #333;
}

.voice-card-body p {
    font-size: 11px;
    line-height: 1.8;
    color: #555;
    margin: 0;
}

/* スマートフォン用のスタイル */
@media (max-width: 768px) {
    .voice-card {
        padding: 25px 15px;
    }

    .voice-card-container {
        padding: 20px 10px;
    }
}