:root {
  --ink: #24333d;
  --muted: #64727c;
  --line: #d7dfe4;
  --line-soft: #e9eef1;
  --surface: #fff;
  --canvas: #f5f7f8;
  --base: #75838c;
  --a: #245d9e;
  --b: #187d7a;
  --delay: #a94e36;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; background: var(--canvas); color: var(--ink); font-family: "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif; }
body { margin: 0; font-size: 15px; line-height: 1.5; }
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: var(--a); text-underline-offset: 3px; }
h1, h2, h3, p { margin-top: 0; }

.app-shell { max-width: 1480px; margin: 0 auto; padding: 0 28px 30px; }
.site-header { height: 56px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.site-name { color: #234353; font-size: 15px; font-weight: 700; }
.site-mode { color: var(--muted); font-size: 13px; }
.header-links { display: flex; align-items: center; gap: 22px; font-size: 13px; }
.header-links a { color: #405764; text-decoration: none; }
.header-links a:hover { text-decoration: underline; }
.page-intro { padding: 24px 0 23px; }
h1 { margin: 0 0 5px; color: #1c3545; font-size: clamp(26px, 2.6vw, 34px); line-height: 1.25; letter-spacing: -.035em; }
.page-intro > p { margin: 0 0 12px; color: #50616b; font-size: 14px; }
.source-line { display: flex; flex-wrap: wrap; align-items: center; gap: 5px 11px; color: var(--muted); font-size: 12px; }
.source-line strong { color: var(--ink); }
.source-line span { padding-left: 11px; border-left: 1px solid #b8c5cb; }

.sample-library { margin-bottom: 20px; }
.sample-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 5px 14px; margin-bottom: 10px; }
.sample-heading h2 { margin: 0; font-size: 14px; color: #29404c; }
.sample-heading > span { font-size: 12px; color: var(--muted); }
.sample-options { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.sample-option { position: relative; display: block; min-width: 0; padding: 13px 15px 12px; border: 1px solid #ccd6dc; border-radius: 4px; color: var(--ink); background: white; text-align: left; }
.sample-option:hover { border-color: #718c9d; background: #fafcfd; }
.sample-option[aria-pressed="true"] { border-color: #245d9e; box-shadow: inset 0 0 0 1px #245d9e; background: #f4f8fc; }
.sample-option[aria-pressed="true"]::after { content: "선택됨"; position: absolute; top: 13px; right: 13px; color: var(--a); font-size: 10px; font-weight: 700; }
.sample-type { display: block; margin-bottom: 4px; color: var(--muted); font-size: 10px; letter-spacing: .02em; }
.sample-option strong { display: block; color: #233f51; font-size: 15px; }
.sample-description { display: block; margin-top: 3px; color: #62717c; font-size: 11px; }
.sample-metrics { display: block; margin-top: 11px; color: #415866; font-size: 12px; font-variant-numeric: tabular-nums; }
.sample-metrics b { font-size: 14px; }
.sample-metrics span { color: #7c8a92; margin: 0 7px; }
.sample-context { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 11px; margin-top: 11px; padding: 0 1px; }
.data-origin { border: 1px solid #bacbd6; padding: 2px 6px; border-radius: 2px; color: #36556a; font-size: 10px; white-space: nowrap; }
.sample-provenance { width: 100%; font-size: 12px; }
.sample-provenance summary { width: fit-content; color: #476376; cursor: pointer; font-size: 11px; }
.sample-provenance[open] { padding: 10px 12px; background: #edf2f5; border-left: 2px solid #9aafb9; }
.sample-provenance p { margin: 9px 0 8px; color: #4e606c; line-height: 1.7; max-width: 1050px; }
.provenance-links { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 11px; }
.result-basis { margin: 12px 23px -9px; font-size: 11px; color: #64727c; }

.dashboard { display: grid; grid-template-columns: 348px minmax(0, 1fr); gap: 20px; align-items: start; }
.editor, .results { min-width: 0; border: 1px solid var(--line); background: var(--surface); }
.editor { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; }
.editor-header { padding: 16px 19px 13px; border-bottom: 1px solid var(--line); }
.section-kicker { display: block; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .04em; }
.editor h2, .results h2 { margin: 3px 0 0; color: #234353; font-size: 20px; line-height: 1.25; }
.editor-header p { margin: 7px 0 0; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.case-library { padding: 15px 19px; border-bottom: 1px solid var(--line); }
.case-library label { display: block; margin-bottom: 6px; color: #40525c; font-size: 12px; font-weight: 700; }
.case-library select { width: 100%; min-width: 0; padding: 8px 9px; border: 1px solid #b9c7ce; border-radius: 3px; background: white; color: var(--ink); font-size: 12px; }
.case-library p { margin: 7px 0 0; color: var(--muted); font-size: 11px; }
.editor-block, .alternatives-block { padding: 16px 19px 19px; border-bottom: 1px solid var(--line); }
.editor h3 { margin: 0 0 11px; color: #29404c; font-size: 15px; }
.editor h3 small { color: var(--muted); font-size: 12px; font-weight: 400; }
.block-description { margin: -4px 0 11px; color: var(--muted); font-size: 12px; }
.field-grid { display: grid; gap: 10px; }
.field, .field-wide { min-width: 0; }
.field label, .field legend { display: block; margin-bottom: 5px; color: #40525c; font-size: 12px; font-weight: 700; }
.field label small { color: var(--muted); font-weight: 400; }
.field input[type="text"], .field input[type="number"], .field select, .alternative-names input, .alternative-table input {
  width: 100%; min-width: 0; padding: 7px 9px; border: 1px solid #b9c7ce; border-radius: 3px; background: white; color: var(--ink); font-size: 13px;
}
.field input.invalid-input, .alternative-names input.invalid-input, .alternative-table input.invalid-input { border-color: var(--delay); background: #fff7f4; }
.blocked-fieldset { margin: 0; padding: 0; border: 0; }
.blocked-fieldset legend { padding: 0; }
.checkbox-list { display: grid; gap: 5px; }
.checkbox-list label { display: flex; align-items: flex-start; gap: 7px; font-size: 12px; }
.checkbox-list input { flex: 0 0 auto; margin: 3px 0 0; accent-color: var(--a); }
.alternative-names { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-bottom: 12px; }
.alternative-names label { display: block; min-width: 0; color: #40525c; font-size: 12px; font-weight: 700; }
.alternative-names label span { display: block; margin-bottom: 5px; }
.alternative-names label:first-child span { color: var(--a); }
.alternative-names label:last-child span { color: var(--b); }
.alternative-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.alternative-table th, .alternative-table td { border-bottom: 1px solid var(--line-soft); padding: 5px 3px; }
.alternative-table thead th { color: var(--muted); font-size: 11px; text-align: left; }
.alternative-table thead th:not(:first-child) { width: 61px; text-align: center; }
.alternative-table thead th:nth-child(2) { color: var(--a); }
.alternative-table thead th:nth-child(3) { color: var(--b); }
.alternative-table tbody th { color: #43545e; font-size: 12px; font-weight: 500; text-align: left; }
.alternative-table tbody input { padding: 5px 4px; text-align: center; font-size: 12px; }
.parallel-note { color: var(--muted); font-size: 10px; font-weight: 400; }
.candidate-review { padding: 14px 19px 17px; border-bottom: 1px solid var(--line); }
.candidate-review h3 { margin-bottom: 6px; }
.candidate-review p { margin: 0 0 4px; color: #43545e; font-size: 12px; }
.candidate-review #candidateName { color: #29404c; font-weight: 700; }
.candidate-review small { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.form-error { margin: 12px 19px 0; padding: 9px 11px; border-left: 3px solid var(--delay); background: #fff4f0; color: #8f3d29; font-size: 12px; }
.source-editor summary { padding: 13px 19px; color: #2c5068; cursor: pointer; font-size: 13px; font-weight: 700; }
.source-editor[open] summary { border-bottom: 1px solid var(--line-soft); }
.source-editor-body { padding: 12px 19px 17px; }
.source-editor-body p { margin: 0 0 11px; color: var(--muted); font-size: 12px; }
.file-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.button { min-height: 34px; padding: 6px 10px; border: 1px solid transparent; border-radius: 3px; font-size: 12px; font-weight: 700; }
.button-primary { background: #244d68; color: white; }
.button-plain { background: white; color: #244d68; border-color: #afc0ca; }
.support-links { display: grid; gap: 3px; margin-top: 11px; font-size: 11px; }
.support-links span { color: var(--muted); }
.back-to-results, .mobile-settings-link { display: none; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible, a:focus-visible { outline: 2px solid var(--a); outline-offset: 2px; }

.result-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 17px 23px; border-bottom: 1px solid var(--line); }
.result-actions { display: flex; align-items: center; gap: 13px; }
.analysis-status { display: inline-flex; align-items: center; gap: 7px; color: var(--b); font-size: 12px; white-space: nowrap; }
.analysis-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.analysis-status.status-error { color: var(--delay); }
.finding { margin: 21px 23px 0; padding: 2px 0 2px 17px; border-left: 3px solid var(--a); }
.finding h3 { margin: 4px 0 5px; color: #1d3444; font-size: clamp(21px, 2vw, 27px); line-height: 1.35; letter-spacing: -.025em; }
.finding p { margin: 0; color: var(--muted); font-size: 13px; }
.overview-section, .affected-section, .reason-section, .calculation-section { margin: 0 23px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.section-title { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 4px 10px; margin-bottom: 11px; }
.section-title h3, .reason-section h3, .calculation-section h3 { margin: 0; color: #29404c; font-size: 16px; }
.section-title > span { color: var(--muted); font-size: 12px; }
.completion-grid, .successor-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); }
.completion-item, .successor-item { min-width: 0; padding: 11px 14px 12px; border-top: 3px solid var(--base); }
.completion-item:not(:last-child), .successor-item:not(:last-child) { border-right: 1px solid var(--line); }
.completion-item.option-a, .successor-item.option-a { border-top-color: var(--a); }
.completion-item.option-b, .successor-item.option-b { border-top-color: var(--b); }
.completion-label { display: flex; align-items: baseline; gap: 7px; color: var(--ink); font-size: 13px; font-weight: 700; }
.completion-label span { color: var(--muted); font-size: 11px; font-weight: 400; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.completion-value { margin: 4px 0 3px; font: 700 32px/1.2 Arial, sans-serif; }
.completion-value small { margin-left: 4px; color: var(--muted); font: 400 12px "Malgun Gothic", system-ui, sans-serif; }
.completion-meta { display: flex; flex-wrap: wrap; gap: 4px 8px; color: var(--muted); font-size: 11px; }
.completion-meta strong { color: var(--ink); font-size: 12px; }
.delay-text, .completion-meta strong.delay-text { color: var(--delay); font-weight: 700; }
.successor-comparison { margin-top: 18px; }
.successor-item { padding-top: 9px; padding-bottom: 10px; }
.successor-item strong { display: block; font: 700 19px/1.3 Arial, sans-serif; }
.successor-item span { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; }
.cause-preview { margin: 13px 0 0; padding: 9px 11px; border-left: 2px solid var(--b); background: #f4f8f8; color: #41545f; font-size: 12px; line-height: 1.55; }
.cause-preview strong { color: #255c62; }
.section-description { margin: 0 0 14px; color: #586872; font-size: 13px; line-height: 1.65; }
.propagation-explanation { margin: -4px 0 13px; color: #36515e; font-size: 12px; line-height: 1.55; }
.table-wrap { width: 100%; overflow-x: auto; }
.affected-table, .stage-table, .activity-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.affected-table th, .affected-table td { padding: 8px 10px; border-bottom: 1px solid var(--line-soft); text-align: right; font-size: 12px; }
.affected-table thead th { background: #f3f6f7; color: #50616b; font-size: 11px; }
.affected-table th:first-child, .affected-table td:first-child { text-align: left; }
.affected-table tbody td:first-child { min-width: 150px; }
.affected-table tbody td:first-child b { display: inline-block; min-width: 34px; color: #264a60; }
.affected-table tbody td:first-child small { margin-left: 5px; color: var(--muted); font-size: 10px; }
.affected-table tbody td span { color: var(--muted); font-size: 11px; }
.affected-table tbody td span.delay-text { color: var(--delay); }
.text-button { margin-top: 10px; padding: 0; border: 0; background: none; color: var(--a); font-size: 12px; font-weight: 700; }
.empty-state { margin: 0; padding: 15px; border: 1px solid var(--line-soft); color: var(--muted); font-size: 13px; }
.reason-section h3 { margin-bottom: 7px; }
.impact-chart { padding: 19px 18px 15px; border: 1px solid var(--line); background: #fafcfc; }
.impact-scale, .impact-row { display: grid; grid-template-columns: 45px minmax(0, 1fr) 93px; gap: 10px; align-items: center; }
.impact-scale { margin-bottom: 9px; color: var(--muted); font-size: 11px; }
.impact-axis-track { position: relative; height: 24px; border-bottom: 1px solid #bdc8ce; }
.impact-axis-gate { position: absolute; bottom: 2px; left: var(--gate); transform: translateX(-50%); color: #526773; white-space: nowrap; }
.impact-row { min-height: 36px; }
.impact-row-label { color: var(--ink); font-size: 12px; font-weight: 700; }
.impact-track { position: relative; height: 20px; }
.available-window { position: absolute; top: 3px; left: 0; width: var(--gate); height: 14px; background: #e8edef; }
.gate-marker { position: absolute; top: -4px; left: var(--gate); height: 28px; border-left: 2px dashed #738891; }
.remedy-bar { position: absolute; top: 6px; left: 0; height: 8px; min-width: 3px; border-radius: 2px; }
.remedy-0 { background: var(--a); }
.remedy-1 { background: var(--b); }
.impact-finish { color: var(--ink); text-align: right; font-size: 12px; font-weight: 700; white-space: nowrap; }
.impact-legend { display: flex; align-items: center; gap: 6px; margin: 8px 0 0 55px; color: var(--muted); font-size: 11px; }
.impact-legend i { width: 10px; height: 10px; background: #e8edef; }
.critical-changes { margin-top: 7px; }
.critical-heading { margin: 16px 0 0; color: #3b4f5a; font-size: 12px; }
.critical-row { display: grid; grid-template-columns: 43px 1fr; gap: 9px; padding: 8px 0; border-top: 1px solid var(--line-soft); font-size: 12px; }
.critical-row strong { color: #29404c; }
.critical-row b { color: var(--ink); }
.calculation-section { border-bottom: 0; }
.calculation-section h3 { margin-bottom: 13px; }
.detail-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); }
.detail-tabs button { margin-bottom: -1px; padding: 8px 15px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 12px; font-weight: 700; }
.detail-tabs button[aria-selected="true"] { border-bottom-color: var(--a); color: #234c73; }
.tab-panel { min-height: 100px; padding: 15px 0 0; }
.stage-basis { display: flex; gap: 5px 17px; flex-wrap: wrap; margin-bottom: 13px; }
.stage-basis p { margin: 0; color: var(--muted); font-size: 11px; }
.stage-basis strong { color: #3c505d; }
.stage-table th, .stage-table td, .activity-table th, .activity-table td { padding: 7px 9px; border-bottom: 1px solid var(--line-soft); text-align: right; white-space: nowrap; font-size: 11px; }
.stage-table thead th, .activity-table thead th { background: #f3f6f7; color: #4d5d66; }
.stage-table th:first-child, .activity-table th:first-child, .activity-table td:first-child { text-align: left; }
.stage-table tbody th { font-weight: 500; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; color: var(--muted); font-size: 11px; }
.legend span { display: flex; align-items: center; gap: 5px; }
.swatch { display: inline-block; width: 12px; height: 9px; }
.swatch.baseline, .bar.baseline { background: #a9b5bb; }
.swatch.option-a, .bar.option-a { background: var(--a); }
.swatch.option-b, .bar.option-b { background: var(--b); }
.timeline { display: grid; gap: 3px; }
.timeline-scale, .timeline-row { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 10px; }
.scale-axis { position: relative; height: 20px; border-bottom: 1px solid #b6c2c8; }
.scale-tick { position: absolute; bottom: -6px; transform: translateX(-50%); color: var(--muted); font-size: 10px; }
.scale-tick::before { content: ""; display: block; width: 1px; height: 5px; margin: auto; background: #b6c2c8; }
.timeline-label { display: flex; align-items: center; gap: 6px; min-width: 0; font-size: 11px; }
.timeline-label b { color: #264a60; }
.timeline-label span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.timeline-bars { position: relative; height: 37px; border-bottom: 1px solid var(--line-soft); background: repeating-linear-gradient(to right, transparent 0, transparent calc(25% - 1px), #edf1f3 calc(25% - 1px), #edf1f3 25%); }
.bar { position: absolute; height: 7px; min-width: 3px; border-radius: 2px; }
.bar.baseline { top: 3px; }
.bar.option-a { top: 14px; }
.bar.option-b { top: 25px; }
.activity-table-wrap { max-height: 440px; overflow: auto; }
.activity-table th { position: sticky; top: 0; z-index: 1; }
.activity-table th:nth-child(2), .activity-table td:nth-child(2) { text-align: left; }
.activity-table td:nth-child(2) { min-width: 170px; }
.activity-table .critical-id { color: var(--a); font-weight: 700; }
.table-note { margin: 9px 0 0; color: var(--muted); font-size: 11px; }
.scope-note { margin: 0 23px 22px; color: var(--muted); font-size: 11px; }
.results-placeholder { padding: 46px 23px; color: var(--muted); font-size: 13px; }
.page-footer { margin-top: 23px; padding-top: 11px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }

@media (max-width: 980px) {
  .dashboard { display: flex; flex-direction: column; }
  .results { order: 1; width: 100%; }
  .editor { order: 2; width: 100%; position: static; max-height: none; overflow: visible; }
  .editor-block, .alternatives-block { padding-left: 23px; padding-right: 23px; }
  .field-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-wide:first-child, .blocked-fieldset { grid-column: 1 / -1; }
  .mobile-settings-link, .back-to-results { display: inline-block; font-size: 12px; font-weight: 700; }
  .back-to-results { margin: 0 23px 17px; }
}
@media (max-width: 650px) {
  .app-shell { padding: 0 12px 24px; }
  .site-header { height: 49px; }
  .page-intro { padding: 20px 0 17px; }
  .page-intro > p { font-size: 12px; }
  .source-line span { padding-left: 0; border-left: 0; }
  .header-links { gap: 12px; font-size: 12px; }
  .header-links .site-mode { font-size: 11px; }
  .sample-options { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .sample-option { padding: 11px 10px; }
  .sample-option[aria-pressed="true"]::after { right: 9px; top: 12px; font-size: 9px; }
  .sample-option strong { font-size: 14px; }
  .sample-description { font-size: 10px; }
  .sample-metrics { font-size: 11px; }
  .sample-metrics b { font-size: 13px; }
  .sample-context { align-items: start; }
  .sample-context .source-line { width: 100%; font-size: 11px; }
  .result-basis { margin-left: 14px; margin-right: 14px; }
  .result-header { padding: 14px 14px; }
  .results h2 { font-size: 18px; }
  .result-actions { display: grid; justify-items: end; gap: 2px; }
  .finding { margin: 18px 14px 0; padding-left: 12px; }
  .finding h3 { font-size: 20px; }
  .overview-section, .affected-section, .reason-section, .calculation-section { margin: 0 14px; padding: 19px 0; }
  .completion-item, .successor-item { padding-left: 8px; padding-right: 7px; }
  .completion-label { font-size: 12px; }
  .completion-label span { display: none; }
  .completion-value { font-size: 25px; }
  .completion-value small { display: block; margin: 0; font-size: 10px; }
  .completion-meta { display: block; font-size: 10px; }
  .completion-meta span { display: none; }
  .successor-item strong { font-size: 17px; }
  .section-title { align-items: start; }
  .section-title h3, .reason-section h3, .calculation-section h3 { font-size: 15px; }
  .affected-table th, .affected-table td { padding: 7px 4px; font-size: 11px; }
  .affected-table tbody td:first-child { min-width: 118px; }
  .affected-table tbody td:first-child b { min-width: 30px; }
  .affected-table tbody td:first-child small { display: none; }
  .impact-chart { padding: 15px 9px 12px; }
  .impact-scale, .impact-row { grid-template-columns: 26px minmax(0, 1fr) 69px; gap: 6px; }
  .impact-scale, .impact-finish { font-size: 10px; }
  .impact-axis-gate { font-size: 9px; }
  .impact-legend { margin-left: 32px; }
  .detail-tabs button { padding: 8px 11px; }
  .timeline-scale, .timeline-row { grid-template-columns: 45px minmax(0, 1fr); gap: 6px; }
  .timeline-label span { display: none; }
  .scope-note { margin: 0 14px 17px; }
  .field-grid { grid-template-columns: 1fr; }
  .field-wide:first-child, .blocked-fieldset { grid-column: auto; }
  .editor-block, .alternatives-block { padding-left: 16px; padding-right: 16px; }
}