:root {
  color-scheme: dark;
  --surface: #111414;
  --surface-dim: #0e1111;
  --surface-container-low: #181c1c;
  --surface-container: #1d2121;
  --surface-container-high: #272b2b;
  --surface-container-highest: #313535;
  --on-surface: #e1e4e2;
  --on-surface-variant: #c1c8c4;
  --outline: #89938e;
  --outline-variant: #404943;
  --primary: #b8c6ff;
  --on-primary: #1d2d60;
  --primary-container: #354778;
  --on-primary-container: #dde4ff;
  --secondary-container: #414850;
  --on-secondary-container: #dde4ec;
  --error: #ffb4ab;
  --error-container: #93000a;
  --on-error-container: #ffdad6;
  --warning: #e8c26d;
  --warning-container: #554500;
  --on-warning-container: #ffdea1;
  --info: #aec6ff;
  --info-container: #24477f;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --motion: 180ms cubic-bezier(.2, 0, 0, 1);
  background: var(--surface-dim);
  color: var(--on-surface);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "palt" 1, "kern" 1;
  line-height: 1.55;
}

* { box-sizing: border-box; }
body { min-width: 320px; margin: 0; background: var(--surface-dim); }
button, input { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

.shell { width: min(100% - 48px, 1120px); margin: 0 auto; padding: 22px 0 80px; }
.app-bar { display: flex; align-items: center; justify-content: space-between; min-height: 68px; padding: 12px 16px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-container-low); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: block; width: 15px; height: 28px; border-radius: 4px; background: var(--primary); box-shadow: 0 0 0 5px rgba(184, 198, 255, .08); }
.brand p { margin: 0; color: var(--on-surface); font-size: 1rem; font-weight: 700; letter-spacing: -.01em; }
.brand span { color: var(--on-surface-variant); font-size: .75rem; }
.status-chip, .assurance span { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: var(--radius-sm); background: var(--secondary-container); color: var(--on-secondary-container); font-size: .75rem; font-weight: 650; letter-spacing: .02em; }

.intro { max-width: 760px; padding: 88px 12px 52px; }
.overline { margin: 0 0 12px; color: var(--primary); font-size: .72rem; font-weight: 750; letter-spacing: .13em; }
h1, h2 { margin: 0; color: var(--on-surface); font-weight: 650; letter-spacing: -.035em; }
h1 { font-size: clamp(2.25rem, 5.6vw, 4.35rem); line-height: 1.1; }
h2 { font-size: 1.28rem; line-height: 1.3; }
.intro > p:not(.overline) { max-width: 600px; margin: 20px 0 0; color: var(--on-surface-variant); font-size: 1.06rem; }
.assurance { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.assurance span { border: 1px solid var(--outline-variant); background: transparent; color: var(--on-surface-variant); }

.workspace { padding: 26px; border-radius: var(--radius-xl); background: var(--surface-container); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.section-heading .overline { margin-bottom: 5px; color: var(--on-surface-variant); }
.section-heading > span { color: var(--on-surface-variant); font-size: .78rem; }
.upload-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.dropzone { position: relative; display: flex; min-height: 228px; flex-direction: column; align-items: flex-start; justify-content: flex-end; gap: 7px; padding: 24px; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); background: var(--surface-container-low); cursor: pointer; transition: background var(--motion), border-color var(--motion), box-shadow var(--motion); }
.dropzone:hover, .dropzone:focus-within { border-color: var(--outline); background: var(--surface-container-high); box-shadow: 0 0 0 3px rgba(184, 198, 255, .1); }
.dropzone.candidate { border-color: #58698c; }
.dropzone input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.file-index { position: absolute; top: 21px; right: 22px; color: var(--outline); font-size: .82rem; font-variant-numeric: tabular-nums; }
.badge { padding: 4px 8px; border-radius: 5px; background: var(--secondary-container); color: var(--on-secondary-container); font-size: .73rem; font-weight: 700; }
.candidate .badge { background: var(--primary-container); color: var(--on-primary-container); }
.dropzone strong { color: var(--on-surface); font-size: 1.05rem; font-weight: 650; }
.dropzone small { color: var(--on-surface-variant); font-size: .84rem; }
.dropzone output { width: 100%; margin-top: 13px; overflow: hidden; padding-top: 13px; border-top: 1px solid var(--outline-variant); color: var(--primary); font-size: .82rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }

.controls { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 16px 0 32px; padding: 16px 0; border-bottom: 1px solid var(--outline-variant); }
.controls > label { display: grid; gap: 8px; color: var(--on-surface-variant); font-size: .8rem; font-weight: 650; letter-spacing: .02em; }
.number-field { display: inline-flex; align-items: center; width: 125px; border: 1px solid var(--outline); border-radius: var(--radius-sm); background: var(--surface-container-low); color: var(--on-surface-variant); }
.number-field:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(184, 198, 255, .12); }
.number-field input { width: 78px; border: 0; outline: 0; padding: 10px 0 10px 12px; background: transparent; color: var(--on-surface); font-variant-numeric: tabular-nums; }
.number-field span { padding-right: 10px; font-size: .86rem; }
.control-actions, .actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
button { min-height: 40px; border: 1px solid transparent; border-radius: var(--radius-xl); padding: 0 17px; cursor: pointer; font-size: .86rem; font-weight: 700; letter-spacing: .01em; transition: background var(--motion), color var(--motion), border-color var(--motion), box-shadow var(--motion); }
button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
button:disabled { cursor: not-allowed; opacity: .38; }
.primary { background: var(--primary); color: var(--on-primary); }
.primary:hover:not(:disabled) { background: #ced7ff; box-shadow: 0 3px 12px rgba(0, 0, 0, .26); }
.secondary { border-color: var(--outline); background: transparent; color: var(--primary); }
.secondary:hover { background: rgba(184, 198, 255, .09); }
.notice { margin: -10px 0 22px; padding: 13px 16px; border: 1px solid var(--error); border-radius: var(--radius-md); background: var(--error-container); color: var(--on-error-container); font-size: .9rem; }

.summary-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.summary { min-height: 94px; padding: 16px; border: 1px solid #713730; border-radius: var(--radius-md); background: #311512; }
.summary.warning { border-color: #725e27; background: #2e260f; }
.summary.info { border-color: #455d91; background: #182946; }
.summary.neutral { border-color: var(--outline-variant); background: var(--surface-container-low); }
.summary span { display: block; color: var(--on-surface-variant); font-size: .75rem; font-weight: 650; }
.summary strong { display: block; margin-top: 3px; color: var(--on-surface); font-size: 1.8rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.results-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 42px 0 12px; }
.results-head p { margin: 7px 0 0; color: var(--on-surface-variant); font-size: .9rem; }
.scope { margin: 0 0 16px; padding: 12px 14px; border-left: 3px solid var(--warning); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: var(--warning-container); color: var(--on-warning-container); font-size: .84rem; }
.table-wrap { overflow-x: auto; border: 1px solid var(--outline-variant); border-radius: var(--radius-md); background: var(--surface-container-low); }
table { width: 100%; min-width: 700px; border-collapse: collapse; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--outline-variant); text-align: left; vertical-align: top; }
th { background: var(--surface-container-high); color: var(--on-surface-variant); font-size: .71rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
td { color: var(--on-surface); font-size: .88rem; }
td:nth-child(2) { color: var(--on-surface-variant); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .8rem; }
tr:last-child td { border-bottom: 0; }
.severity { display: inline-flex; align-items: center; min-height: 25px; padding: 0 8px; border-radius: 5px; font-size: .72rem; font-weight: 750; }
.severity.critical { background: var(--error-container); color: var(--on-error-container); }
.severity.warning { background: var(--warning-container); color: var(--on-warning-container); }
.severity.info { background: var(--info-container); color: #d9e2ff; }
.empty { padding: 30px; color: var(--on-surface-variant); text-align: center; }
.help { margin-top: 32px; padding: 16px; border: 1px solid var(--outline-variant); border-radius: var(--radius-md); background: var(--surface-container-low); color: var(--on-surface-variant); font-size: .88rem; }
.help summary { cursor: pointer; color: var(--on-surface); font-weight: 650; }
.help ul { margin-bottom: 0; padding-left: 20px; }
.help li + li { margin-top: 6px; }

@media (max-width: 720px) {
  .shell { width: min(100% - 28px, 1120px); padding-top: 14px; }
  .app-bar { min-height: 60px; padding: 10px 12px; }
  .intro { padding: 60px 4px 36px; }
  .workspace { padding: 16px; }
  .upload-grid, .summary-row { grid-template-columns: 1fr; }
  .dropzone { min-height: 185px; }
  .controls, .results-head { align-items: stretch; flex-direction: column; }
  .control-actions, .actions { width: 100%; }
  .control-actions button, .actions button { flex: 1 1 auto; }
  .section-heading { align-items: start; flex-direction: column; }
}