/* ============================================================
   LH 평가결과 분석 시스템 — 스타일시트
   DESIGN.md (ChatGPT graphite-on-paper) 토큰을 엄격하게 적용.
   무채색 + 헤어라인 보더 + 시스템 폰트. 그림자/색상 금지.
   ============================================================ */

:root {
  /* Colors — DESIGN.md 토큰 */
  --color-sidebar-mist: #f9f9f9;
  --color-pure-white: #ffffff;
  --color-graphite-ink: #0d0d0d;
  --color-mid-ash: #5d5d5d;
  --color-hollow: #8f8f8f;
  --color-hairline: #0000001a;
  --color-hover-veil: #0000000d;
  --color-ink-press: #000000;
  --color-deep-charcoal: #00000080;
  --color-edge-gray: #e6e6e6;

  /* Typography */
  --font-apple-system-body: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;
  --text-caption: 14px;
  --leading-caption: 1.43;
  --text-body: 16px;
  --leading-body: 1.5;
  --text-heading: 24px;
  --leading-heading: 1.33;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  /* Spacing */
  --spacing-6: 6px;
  --spacing-8: 8px;
  --spacing-10: 10px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-20: 20px;

  /* Layout */
  --page-max-width: 1200px;
  --section-gap: 24px;
  --card-padding: 16px;
  --element-gap: 6px;

  /* Radius */
  --radius-nav: 10px;
  --radius-cards: 10px;
  --radius-buttons: 10px;
  --radius-badges: 0px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-apple-system-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-graphite-ink);
  background: var(--color-pure-white);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   Layout shell: sidebar + main
   ============================================================ */
.app {
  display: grid;
  grid-template-columns: 264px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--color-sidebar-mist);
  border-right: 1px solid var(--color-hairline);
  padding: var(--spacing-16);
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  font-size: var(--text-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-heading);
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-sub {
  font-size: var(--text-caption);
  color: var(--color-hollow);
  line-height: var(--leading-caption);
  margin: 0;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: var(--element-gap);
}

.nav-item {
  appearance: none;
  border: none;
  background: transparent;
  text-align: left;
  font: inherit;
  color: var(--color-graphite-ink);
  font-size: var(--text-caption);
  font-weight: var(--font-weight-regular);
  padding: var(--spacing-6) var(--spacing-10);
  border-radius: var(--radius-nav);
  cursor: pointer;
  transition: background 0.12s ease;
}

.nav-item:hover {
  background: var(--color-hover-veil);
}

.nav-item.is-active {
  background: var(--color-hover-veil);
  font-weight: var(--font-weight-medium);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: var(--spacing-16);
  border-top: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-10);
}

.main {
  padding: var(--section-gap) clamp(16px, 4vw, 40px) 64px;
  max-width: var(--page-max-width);
  width: 100%;
}

/* ============================================================
   Typography helpers
   ============================================================ */
.section-title {
  font-size: var(--text-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-heading);
  margin: 0 0 var(--spacing-8) 0;
}

.section-desc {
  font-size: var(--text-caption);
  color: var(--color-mid-ash);
  line-height: var(--leading-caption);
  margin: 0 0 var(--spacing-16) 0;
}

.muted {
  color: var(--color-mid-ash);
}
.faint {
  color: var(--color-hollow);
}

/* ============================================================
   Stat cards (Surface Card)
   ============================================================ */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-12);
  margin-bottom: var(--section-gap);
}

.stat-card {
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
}

.stat-label {
  font-size: var(--text-caption);
  color: var(--color-mid-ash);
  font-weight: var(--font-weight-regular);
}

.stat-value {
  font-size: var(--text-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--leading-heading);
  margin-top: var(--spacing-6);
}

/* ============================================================
   Surface panels
   ============================================================ */
.panel {
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
  margin-bottom: var(--section-gap);
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-12);
}

.panel-title {
  font-size: 18px;
  font-weight: var(--font-weight-semibold);
  margin: 0;
}

/* ============================================================
   Tables
   ============================================================ */
.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-caption);
}

table.data th,
table.data td {
  text-align: left;
  padding: var(--spacing-8) var(--spacing-10);
  border-bottom: 1px solid var(--color-hairline);
  white-space: nowrap;
}

table.data thead th {
  font-weight: var(--font-weight-medium);
  color: var(--color-mid-ash);
  border-bottom: 1px solid var(--color-hairline);
  background: var(--color-sidebar-mist);
}

table.data tbody tr {
  transition: background 0.1s ease;
}

table.data tbody tr:hover {
  background: var(--color-hover-veil);
}

table.data td.num,
table.data th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.row-link {
  cursor: pointer;
  color: var(--color-graphite-ink);
  font-weight: var(--font-weight-medium);
}

/* ============================================================
   Badges / chips
   ============================================================ */
.badge {
  display: inline-block;
  background: var(--color-sidebar-mist);
  color: var(--color-graphite-ink);
  border-radius: var(--radius-badges);
  padding: 2px var(--spacing-8);
  font-size: 12px;
  line-height: 1.6;
  font-weight: var(--font-weight-medium);
}

.tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-mid-ash);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-badges);
  padding: 1px var(--spacing-6);
  margin: 0 2px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  appearance: none;
  font: inherit;
  font-size: var(--text-caption);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-buttons);
  padding: var(--spacing-6) var(--spacing-12);
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.btn-primary {
  background: var(--color-graphite-ink);
  color: var(--color-pure-white);
  border: 1px solid var(--color-graphite-ink);
}
.btn-primary:hover {
  background: var(--color-ink-press);
}

.btn-ghost {
  background: transparent;
  color: var(--color-graphite-ink);
  border: 1px solid var(--color-hairline);
}
.btn-ghost:hover {
  background: var(--color-hover-veil);
}

.btn-pill {
  background: var(--color-pure-white);
  color: var(--color-graphite-ink);
  border: 1px solid var(--color-hairline);
  border-radius: 9999px;
  padding: var(--spacing-6) var(--spacing-16);
}
.btn-pill:hover {
  border-color: #00000026;
}

/* ============================================================
   Inputs
   ============================================================ */
.input,
.select {
  appearance: none;
  font: inherit;
  font-size: var(--text-caption);
  color: var(--color-graphite-ink);
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-buttons);
  padding: var(--spacing-6) var(--spacing-10);
  outline: none;
}
.input:focus,
.select:focus {
  border-color: var(--color-graphite-ink);
}

.search-row {
  display: flex;
  gap: var(--spacing-8);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-16);
}

.inline-form {
  display: flex;
  gap: var(--spacing-8);
  align-items: center;
}

/* ============================================================
   Heatmap (achromatic)
   ============================================================ */
.heatmap-scroll {
  overflow: auto;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
}

table.heatmap {
  border-collapse: collapse;
  font-size: 12px;
}

table.heatmap th,
table.heatmap td {
  border: 1px solid var(--color-hairline);
  padding: var(--spacing-6);
  text-align: center;
  min-width: 38px;
  white-space: nowrap;
}

table.heatmap thead th {
  font-weight: var(--font-weight-medium);
  color: var(--color-mid-ash);
  background: var(--color-sidebar-mist);
  position: sticky;
  top: 0;
}

table.heatmap tbody th {
  text-align: left;
  font-weight: var(--font-weight-medium);
  background: var(--color-sidebar-mist);
}

.hm-cell {
  color: var(--color-graphite-ink);
  font-variant-numeric: tabular-nums;
}
.hm-cell.zero {
  color: var(--color-hollow);
}
.hm-cell .dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--color-graphite-ink);
  vertical-align: middle;
}

/* ============================================================
   Bars (achromatic)
   ============================================================ */
.bar-track {
  position: relative;
  height: 8px;
  background: var(--color-sidebar-mist);
  border-radius: 2px;
  min-width: 60px;
}
.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--color-graphite-ink);
  border-radius: 2px;
}

/* ============================================================
   Utilities
   ============================================================ */
.hidden {
  display: none !important;
}

.empty {
  color: var(--color-hollow);
  font-size: var(--text-caption);
  padding: var(--spacing-16);
  text-align: center;
}

.divider {
  height: 1px;
  background: var(--color-hairline);
  margin: var(--spacing-16) 0;
}

.pill-row {
  display: flex;
  gap: var(--spacing-8);
  flex-wrap: wrap;
}

.kv {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: var(--spacing-6) var(--spacing-12);
  font-size: var(--text-caption);
}
.kv dt {
  color: var(--color-mid-ash);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-ink-press);
  color: var(--color-pure-white);
  padding: var(--spacing-8) var(--spacing-16);
  border-radius: var(--radius-buttons);
  font-size: var(--text-caption);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.toast.show {
  opacity: 1;
}

@media (max-width: 860px) {
  .app {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
  .sidebar-footer {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    flex: 1;
    justify-content: flex-end;
  }
}

/* ============================================================
   Nav 그룹 구분
   ============================================================ */
.nav-group-label {
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-hollow);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px var(--spacing-10) 2px;
  margin-top: 4px;
}
.nav-divider {
  height: 1px;
  background: var(--color-hairline);
  margin: var(--spacing-8) 0;
}

/* ============================================================
   Toast 변형
   ============================================================ */
.toast-error { background: #c0392b; }
.toast-success { background: #27ae60; }

/* ============================================================
   Buttons 추가 변형
   ============================================================ */
.btn-sm {
  font-size: 12px;
  padding: 4px 10px;
}
.btn-danger {
  background: #e74c3c;
  color: #fff;
  border: 1px solid #e74c3c;
}
.btn-danger:hover { background: #c0392b; }
.btn-icon { background: transparent; border: none; cursor: pointer; font-size: 14px; padding: 2px 4px; }
.btn-danger-icon { color: #e74c3c; }
.btn-danger-icon:hover { color: #c0392b; }

/* ============================================================
   인력 카드 그리드
   ============================================================ */
.personnel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-12);
  margin-bottom: var(--section-gap);
}

.personnel-card {
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.12s ease;
}
.personnel-card:hover {
  border-color: rgba(0,0,0,0.15);
  transform: translateY(-1px);
}
.personnel-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.personnel-name {
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
}
.personnel-badge {
  font-size: 11px;
  background: var(--color-graphite-ink);
  color: var(--color-pure-white);
  padding: 1px 7px;
  border-radius: 9999px;
  white-space: nowrap;
}
.personnel-meta {
  font-size: 12px;
  color: var(--color-mid-ash);
  margin-bottom: 10px;
}
.personnel-stats {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  margin-bottom: 8px;
}
.personnel-stat { display: flex; flex-direction: column; gap: 2px; }
.stat-label-sm { font-size: 10px; color: var(--color-hollow); }
.stat-val-sm { font-size: 13px; font-weight: var(--font-weight-medium); }
.personnel-file { font-size: 11px; color: var(--color-hollow); }

/* ── 인력 상세 ── */
.perd-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px 12px;
  font-size: 14px;
  margin-bottom: 12px;
}
.perd-meta-item { display: flex; gap: 6px; align-items: center; }
.highlight-housing { color: #2980b9; font-weight: var(--font-weight-semibold); }
.housing-badge {
  background: #d6eaf8; color: #1a5276;
  padding: 1px 6px; border-radius: 4px; font-size: 11px;
}

/* ── PDF 드롭존 ── */
.pdf-drop-zone {
  border: 2px dashed var(--color-edge-gray);
  border-radius: var(--radius-cards);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  color: var(--color-mid-ash);
}
.pdf-drop-zone:hover, .pdf-drop-zone.drag-over {
  border-color: var(--color-graphite-ink);
  background: var(--color-sidebar-mist);
}
.drop-icon { font-size: 32px; margin-bottom: 8px; }

/* ============================================================
   발주청 기준 레이아웃
   ============================================================ */
.criteria-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--spacing-16);
  align-items: start;
}

.criteria-sidebar {
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
  position: sticky;
  top: 24px;
}
.criteria-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.criteria-sidebar-head h3 { font-size: 15px; font-weight: 600; margin: 0; }

.criteria-list { display: flex; flex-direction: column; gap: 4px; }
.criteria-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-nav);
  cursor: pointer;
  transition: background 0.1s;
  border: 1px solid transparent;
}
.criteria-list-item:hover { background: var(--color-hover-veil); }
.criteria-list-item.is-selected {
  background: var(--color-sidebar-mist);
  border-color: var(--color-hairline);
  font-weight: var(--font-weight-medium);
}
.criteria-name { font-size: 14px; }

/* ── 발주청 메인 영역 ── */
.criteria-main { min-height: 300px; }
.criteria-main-empty { display: flex; align-items: center; justify-content: center; min-height: 200px; color: var(--color-hollow); }

.criteria-detail-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}

/* ── 분야별 기준 박스 ── */
.criteria-field-box {
  background: var(--color-pure-white);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-cards);
  padding: 14px 16px;
  margin-bottom: 12px;
  transition: border-color 0.15s;
}
.criteria-field-box:hover { border-color: rgba(0,0,0,0.12); }

.cf-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.cf-head-left { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.cf-title { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 15px; }
.cf-icon { font-size: 14px; }
.cf-meta { display: flex; align-items: center; gap: 6px; font-size: 12px; flex-wrap: wrap; }
.cf-meta-val { font-weight: var(--font-weight-medium); }
.cf-sep { color: var(--color-hollow); }
.cf-ratio { font-size: 12px; color: var(--color-mid-ash); font-weight: var(--font-weight-medium); }
.cf-actions { display: flex; gap: 4px; flex-shrink: 0; }

.cf-eval-types {
  display: flex; gap: 12px; flex-wrap: wrap;
  padding-top: 10px;
  border-top: 1px solid var(--color-hairline);
}
.cf-eval-item { display: flex; align-items: center; gap: 6px; }

/* ── 평가기준 뱃지 ── */
.eval-type-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.badge-chief { background: #fde8e8; color: #c0392b; }
.badge-field { background: #eaf4fb; color: #1a5276; }
.badge-tech  { background: #eaf9ea; color: #1e8449; }
.badge-green { background: #d5f5e3; color: #1e8449; }
.badge-yellow{ background: #fef9e7; color: #b7770d; }
.badge-red   { background: #fde8e8; color: #c0392b; }

/* tag variants */
.tag-chief { border-color: #c0392b; color: #c0392b; }
.tag-job   { border-color: #2980b9; color: #2980b9; }

/* ============================================================
   모달
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--color-pure-white);
  border-radius: 12px;
  width: min(420px, 95vw);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18);
}
.modal-lg { width: min(640px, 96vw); }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-hairline);
  position: sticky; top: 0; background: var(--color-pure-white);
  z-index: 1;
}
.modal-head h3 { margin: 0; font-size: 16px; }
.btn-close { background: none; border: none; font-size: 18px; cursor: pointer; color: var(--color-mid-ash); padding: 0; }
.btn-close:hover { color: var(--color-graphite-ink); }
.modal-body { padding: 16px 20px; }
.modal-foot {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--color-hairline);
  position: sticky; bottom: 0; background: var(--color-pure-white);
}

/* ── 폼 컴포넌트 ── */
.form-row { margin-bottom: 14px; }
.form-label { display: block; font-size: 13px; font-weight: var(--font-weight-medium); margin-bottom: 5px; }
.form-label-sm { font-size: 12px; color: var(--color-mid-ash); }
.form-hint { font-size: 11px; color: var(--color-hollow); font-weight: normal; }
.required { color: #e74c3c; }
.form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.input-sm { padding: 3px 7px; font-size: 13px; }

.checkbox-group {
  display: flex; flex-wrap: wrap; gap: 6px 12px;
  font-size: 13px;
}
.checkbox-group label { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.checkbox-row { display: flex; align-items: center; gap: 8px; padding: 6px 4px; font-size: 13px; cursor: pointer; }
.checkbox-row:hover { background: var(--color-hover-veil); border-radius: 6px; }

/* ── 평가기준 박스 (모달 내) ── */
.eval-type-box {
  border: 1px solid var(--color-hairline);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.eval-chief { border-left: 3px solid #c0392b; }
.eval-field  { border-left: 3px solid #1a5276; }
.eval-tech   { border-left: 3px solid #1e8449; }
.eval-type-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.eval-type-fields { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   시뮬레이션 레이아웃
   ============================================================ */
.sim-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-16);
  align-items: start;
}
.sim-config { padding: var(--card-padding); }
.sim-personnel-list { max-height: 280px; overflow-y: auto; border: 1px solid var(--color-hairline); border-radius: 6px; padding: 6px; }
.sim-result {}

.sim-summary {
  display: flex; gap: 16px; flex-wrap: wrap;
  padding: 12px;
  background: var(--color-sidebar-mist);
  border-radius: 8px;
  margin-bottom: 10px;
}
.sim-stat { display: flex; flex-direction: column; gap: 2px; }
.sim-stat-label { font-size: 11px; color: var(--color-hollow); }
.sim-stat-val { font-size: 16px; font-weight: var(--font-weight-semibold); }
.sim-criteria-info { font-size: 13px; color: var(--color-mid-ash); margin-bottom: 4px; }

.ratio-badge {
  display: inline-block; padding: 2px 8px;
  border-radius: 9999px; font-size: 12px; font-weight: 600;
}

/* ============================================================
   주택법 계산
   ============================================================ */
.housing-personnel-list {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 8px;
  border: 1px solid var(--color-hairline);
  border-radius: 8px;
  min-height: 60px;
}
.bar-fill-housing { background: #2980b9; }

/* ============================================================
   반응형 (신규 컴포넌트)
   ============================================================ */
@media (max-width: 860px) {
  .criteria-layout, .sim-layout {
    grid-template-columns: 1fr;
  }
  .criteria-sidebar { position: static; }
  .form-2col { grid-template-columns: 1fr; }
}