:root {
    font-family: system-ui, sans-serif;
    color: #1c2933;
    background: #f3f6f8;
    line-height: 1.5;
}
* { box-sizing: border-box; }
body { max-width: 800px; margin: auto; padding: 20px 16px 40px; }
a { color: #155b87; }
h1 { font-size: 28px; margin: 16px 0 8px; }
h2 { font-size: 21px; margin: 0 0 8px; }
header p { margin-top: 0; }
main { background: white; border: 1px solid #dce3e8; border-radius: 12px; padding: 16px; }
main > section + section { border-top: 1px solid #dce3e8; margin-top: 24px; padding-top: 24px; }
.small { font-size: 14px; color: #425360; overflow-wrap: anywhere; }
.history-details { margin-top: 12px; }
summary { cursor: pointer; padding: 8px 0; min-height: 44px; font-weight: 600; }
summary:focus-visible, button:focus-visible, a:focus-visible {
    outline: 2px solid #155b87;
    outline-offset: 3px;
}
button { font: inherit; color: #155b87; background: #edf5fa; border: 1px solid #b6cddc; border-radius: 6px; }
button:disabled { opacity: .6; cursor: wait; }
.validation-sample { margin: 12px 0; }
.validation-sample dt { margin-top: 8px; font-weight: 600; }
.validation-sample dd { margin: 0; }
.validation-note p { margin-bottom: 0; }

.validation-stat {
    margin-top: 7px;
    padding-top: 6px;
    border-top: 1px solid #ddd;
}
.validation-stat-title {
    font-weight: 600;
}
#forecastValidationDetails .small {
    font-size: 13px;
    line-height: 1.45;
}
.validation-stat > summary {
    cursor: pointer;
    padding: 8px 0;
    min-height: 44px;
    box-sizing: border-box;
}
.validation-stat > summary .small {
    display: block;
    margin-top: 3px;
    font-weight: normal;
}
.validation-refresh {
    margin: 6px 0;
    min-height: 44px;
    padding: 6px 12px;
    cursor: pointer;
}
.validation-note {
    margin-top: 8px;
    padding: 6px;
    border-radius: 4px;
    background: #f3f4f6;
}

.snow-comparison-note {
    border-left: 3px solid #b6cddc;
    padding: 10px 12px;
    background: #f3f7fa;
    border-radius: 0 6px 6px 0;
}
.snow-comparison-group { margin-top: 16px; }
.snow-comparison-group h3 { font-size: 17px; margin: 0 0 6px; }
.snow-comparison-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 10px 0;
}
.snow-comparison-metrics > div {
    padding: 10px;
    border: 1px solid #dce3e8;
    border-radius: 7px;
    background: #f8fafb;
}
.snow-comparison-metrics dt { font-size: 12px; color: #425360; }
.snow-comparison-metrics dd { margin: 2px 0 0; font-weight: 650; font-size: 18px; overflow-wrap: anywhere; }
.snow-comparison-meta { margin: 8px 0; }
.snow-comparison-stations { list-style: none; margin: 4px 0 0; padding: 0; }
.snow-comparison-stations > li { padding: 10px 0; border-top: 1px solid #e6ebef; }
.snow-comparison-stations strong { display: block; }
.snow-comparison-stations p { margin: 3px 0; }
.snow-comparison-reading { margin: 10px 0 0; }
.snow-comparison-error { color: #8b2d24; }
.snow-forecast-bin { margin-top: 16px; padding-top: 12px; border-top: 1px solid #e6ebef; }
.snow-forecast-bin h3 { font-size: 17px; margin: 0 0 6px; }
.snow-forecast-bin p { margin: 6px 0; }
.daily-report-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 12px 0; }
.daily-report-cards > div { padding: 12px; background: #f3f7fa; border: 1px solid #dce3e8; border-radius: 7px; }
.daily-report-cards dt { font-size: 13px; color: #425360; }
.daily-report-cards dd { margin: 4px 0 0; font-weight: 650; overflow-wrap: anywhere; }
.daily-report-state { border-left: 4px solid #35764c; padding: 8px 12px; background: #edf7f0; }
.daily-report-state.attention { border-color: #a16c0a; background: #fff7e5; }
.daily-report-table-wrap { overflow-x: auto; }
.daily-report-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.daily-report-table th, .daily-report-table td { text-align: right; padding: 8px 5px; border-bottom: 1px solid #dce3e8; }
.daily-report-table th:first-child, .daily-report-table td:first-child { text-align: left; }
.daily-report-table caption { text-align: left; padding-bottom: 8px; }
@media (max-width: 420px) {
    .snow-comparison-metrics { gap: 5px; }
    .snow-comparison-metrics > div { padding: 8px 6px; }
    .snow-comparison-metrics dd { font-size: 16px; }
}