/* 全体設定 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f7f9;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
}

h2 {
    text-align: center;
    color: #34495e;
    font-size: 1.2em;
    margin-bottom: 15px;
}

/* ファイル選択 */
.file-selector {
    text-align: center;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #ecf0f1;
    border-radius: 8px;
}

.file-selector label {
    font-weight: bold;
    margin-right: 10px;
}

/* フィルター */
.filters {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filters label {
    font-weight: bold;
}

.filters input[type="date"],
.filters button,
.file-selector input[type="file"] {
    padding: 10px 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1em;
}

.filters button:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

.filters button {
    background-color: #3498db;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.filters button:hover {
    background-color: #2980b9;
}

/* サマリー */
.summary-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
    margin-bottom: 40px;
}

.summary-item {
    background-color: #ecf0f1;
    padding: 20px;
    border-radius: 8px;
}

.summary-item h3 {
    margin: 0 0 10px 0;
    color: #7f8c8d;
    font-size: 1em;
}

.summary-item p {
    margin: 0;
    font-size: 1.8em;
    font-weight: bold;
    color: #2c3e50;
}

/* グラフ */
.charts-container {
    display: grid;
    gap: 30px;
}

.chart-card {
    position: relative; /* For canvas aspect ratio */
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.chart-card canvas {
    max-height: 400px; /* グラフの最大の高さを指定 */
}

/* PC表示 (画面幅 > 768px) */
@media (min-width: 769px) {
    .charts-container {
        grid-template-columns: 1fr 1fr;
        /* 1番目の要素(気温グラフ)を2列分に広げる */
        grid-template-areas:
            "temp temp"
            "precip sun";
    }
    .charts-container .chart-card:nth-child(1) {
        grid-area: temp;
    }
    .charts-container .chart-card:nth-child(2) {
        grid-area: precip;
    }
    .charts-container .chart-card:nth-child(3) {
        grid-area: sun;
    }
}

/* スマートフォン表示 (画面幅 <= 768px) */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    .container {
        padding: 15px;
    }
    .filters {
        flex-direction: column;
        gap: 10px;
    }
    .summary-container {
        grid-template-columns: 1fr 1fr; /* スマホでは2列に */
    }
    .summary-item p {
        font-size: 1.4em;
    }
    .charts-container {
        grid-template-columns: 1fr; /* 1列表示 */
    }
}

@media (max-width: 480px) {
    .summary-container {
        grid-template-columns: 1fr; /* さらに小さい画面では1列に */
    }
}