:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif; color: #172033; background: #f5f7fb; }
* { box-sizing: border-box; }
body { margin: 0; }
.shell { max-width: 940px; margin: 0 auto; padding: 40px 20px 72px; }
header { margin-bottom: 24px; }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); margin: 4px 0; }
h2 { font-size: 1.15rem; margin-top: 0; }
.eyebrow { color: #176b4a; font-size: .82rem; font-weight: 700; margin: 0; }
.card { background: #fff; border: 1px solid #d9dfeb; border-radius: 14px; padding: 22px; margin: 16px 0; box-shadow: 0 1px 2px #1720330d; }
.hidden { display: none !important; }
.muted { color: #5e687a; }
.notice, .errors { border-radius: 8px; padding: 12px; margin-top: 12px; }
.notice { background: #fff4db; color: #704900; }
.errors { background: #fff0f0; color: #8b1c1c; }
.success { background: #edfaf2; color: #176b4a; border-radius: 8px; padding: 12px; }
.drop-zone { border: 2px dashed #9eafc7; border-radius: 12px; padding: 24px; display: grid; justify-items: center; gap: 10px; text-align: center; transition: background-color .15s, border-color .15s; }
.drop-zone.is-dragging { background: #edfaf2; border-color: #176b4a; }
.file-picker { display: inline-block; color: white; background: #176b4a; padding: 10px 14px; border-radius: 8px; cursor: pointer; font-weight: 700; }
.file-picker input { position: absolute; width: 1px; height: 1px; opacity: 0; }
button, select, input { font: inherit; }
button { border: 0; border-radius: 8px; background: #176b4a; color: white; padding: 10px 14px; cursor: pointer; font-weight: 700; }
button:disabled { cursor: not-allowed; opacity: .5; }
button.secondary { background: #e9eef6; color: #24314a; }
button.danger { background: #b42318; }
button.link-button { background: transparent; color: #b42318; padding: 12px 0 0; text-decoration: underline; }
.inline-controls, .button-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
select, input { border: 1px solid #b9c3d5; border-radius: 7px; padding: 9px; background: #fff; min-width: 0; }
.inline-controls select { flex: 1 1 220px; }
.mapping-row { display: grid; grid-template-columns: minmax(130px, .8fr) minmax(180px, 1fr) minmax(160px, 1fr); gap: 10px; padding: 12px 0; border-top: 1px solid #edf0f5; align-items: center; }
.mapping-row:first-child { border-top: 0; }
.mapping-note { grid-column: 2 / -1; margin: -2px 0 2px; }
.required { color: #b42318; font-size: .8rem; margin-left: 4px; }
.setting-intro { border-bottom: 1px solid #edf0f5; margin-bottom: 12px; }
.setting-intro h3 { font-size: 1rem; margin: 0 0 8px; }
.setting-name { display: grid; gap: 6px; max-width: 430px; margin: 0 0 16px; font-weight: 700; }
.setting-name input { width: 100%; }
.setting-name input:read-only { background: #f1f4f8; color: #4b5565; }
.change-status { border-radius: 8px; padding: 10px 12px; margin: 12px 0; background: #edf5ff; color: #244b76; }
.change-status.is-changed { background: #fff4db; color: #704900; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; margin-top: 14px; overflow: hidden; }
.table-wrap { overflow-x: auto; }
th, td { text-align: left; border: 1px solid #d9dfeb; padding: 8px; white-space: nowrap; }
th { background: #f1f4f8; }
ul { padding-left: 20px; }
.site-footer { margin-top: 28px; padding: 18px 4px 0; border-top: 1px solid #d9dfeb; color: #5e687a; font-size: .9rem; }
.site-footer p { margin: 0 0 8px; }
a { color: #176b4a; }
.info-page h3 { font-size: 1rem; margin: 20px 0 8px; }
.info-page li + li { margin-top: 7px; }
@media (max-width: 640px) { .shell { padding: 24px 14px 52px; } .card { padding: 16px; } .mapping-row { grid-template-columns: 1fr; gap: 6px; } .inline-controls > * { flex: 1 1 auto; } }