:root {
    --primary: #e91e63;
    --secondary: #00bcd4;
    --bg: #f8f9fa;
}

body {
    font-family: "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    margin: 0;
    display: flex;
    height: 100vh;
    color: #333;
}

.sidebar {
    width: 320px;
    background: white;
    padding: 20px;
    border-right: 1px solid #ddd;
    overflow-y: auto;
    font-size: 13px;
}

.main {
    flex: 1;
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.input-group {
    margin-bottom: 12px;
}

label {
    display: block;
    margin-bottom: 4px;
    font-weight: bold;
    color: #555;
}

input, select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

h2 {
    font-size: 18px;
    margin-top: 0;
    border-left: 4px solid var(--primary);
    padding-left: 10px;
}

#mainChart {
    width: 100% !important;
    height: 420px !important; /* HiDPI化のため高さを固定 */
}

#summary {
    margin-top: 20px;
    display: flex;
    gap: 20px;
}

.year-slider {
    margin: 10px 0 0;
    padding: 10px 14px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.year-slider input[type="range"] {
    width: 100%;
}

.year-range-label {
    margin-top: 6px;
    font-size: 12px;
    color: var(--color-text, #374151);
    font-weight: 600;
}

.year-slider-meta {
    margin-top: 6px;
    display: block;
}