*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #16191d;
  background: #f6f7f9;
}
header { padding: 20px 24px 0; }
h1 { margin: 0 0 12px; font-size: 20px; }
nav { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid #d6dae0; }
nav a {
  padding: 8px 14px; text-decoration: none; color: #4b5563;
  border: 1px solid transparent; border-bottom: none; border-radius: 6px 6px 0 0;
}
nav a[aria-current="page"] { background: #fff; color: #111; border-color: #d6dae0; }
main { padding: 24px; }
.placeholder {
  background: #fff; border: 1px solid #d6dae0; border-radius: 8px;
  padding: 20px; max-width: 720px;
}
.placeholder code { background: #eef1f4; padding: 1px 5px; border-radius: 4px; }

/* ---- 공용 디자인 토큰 — T7.1~T7.3 화면이 공유한다 ------------------------ */
:root {
  --border: #d6dae0;
  --muted: #5a6472;
  --panel-bg: #ffffff;
  --focus-ring: #2f6fed;
  --danger: #9c2b23;
  --danger-bg: #fbeae8;
  --warning: #8a5a00;
  --warning-bg: #fff4dc;
  --success: #1e6b3a;
  --success-bg: #e7f6ec;
  --info-bg: #eef1f4;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ---- 레이아웃 -------------------------------------------------------- */
.layout { display: grid; gap: 16px; align-items: start; margin-top: 12px; }
.layout-3 { grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr) minmax(280px, 1.4fr); }
.layout-2 { grid-template-columns: minmax(260px, 1fr) minmax(260px, 1.4fr); }
@media (max-width: 900px) {
  .layout-3, .layout-2 { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 16px; min-width: 0;
}
.panel h3 { margin: 0 0 10px; font-size: 15px; }
/* 페이지 제목 위계 — 화면별 override 를 두지 않는다(S1). 셸 h1(20px)보다 크지 않게. */
.panel > h2 { margin: 0 0 4px; font-size: 20px; letter-spacing: -.01em; }
.panel > h2 + p { margin: 0; color: var(--muted); }
.panel-editor { grid-column: auto; }

/* ---- 목록 -------------------------------------------------------------- */
.list { list-style: none; margin: 10px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; max-height: 360px; overflow-y: auto; }
.list .empty { color: var(--muted); padding: 6px 2px; font-size: 13px; }
.list-item-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px; width: 100%;
  text-align: left; background: #fbfbfc; border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 10px; cursor: pointer; font: inherit; color: inherit;
}
.list-item-btn:hover { background: #f1f3f5; }
.list-item-btn[aria-current="true"] { background: #eaf0ff; border-color: var(--focus-ring); }
.item-title { font-weight: 600; }
.item-meta { font-size: 12px; color: var(--muted); }

/* ---- 배지 -------------------------------------------------------------- */
.badge {
  display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 8px;
  border-radius: 999px; letter-spacing: .02em; width: fit-content; white-space: nowrap;
}
.badge-draft { background: var(--info-bg); color: var(--muted); }
.badge-published { background: var(--success-bg); color: var(--success); }
.badge-open { background: var(--info-bg); color: var(--muted); }

/* ---- 배너(오류·상태·성공) ------------------------------------------------ */
.banner-slot:empty { display: none; }
.banner { border-radius: 8px; padding: 10px 14px; margin: 12px 0; border: 1px solid transparent; }
.banner p { margin: 2px 0; }
.banner-message { font-size: 14px; }
.banner-meta { font-size: 12px; opacity: .8; }
.banner-error { background: var(--danger-bg); color: var(--danger); border-color: #f3c8c3; }
.banner-warning { background: var(--warning-bg); color: var(--warning); border-color: #f0dca3; }
.banner-status { background: var(--info-bg); color: var(--muted); border-color: var(--border); }
.banner-success { background: var(--success-bg); color: var(--success); border-color: #bfe3cc; }

/* ---- 폼 ------------------------------------------------------------------ */
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.field label { font-size: 12px; font-weight: 600; color: var(--muted); }
.field input, .field textarea, .field select {
  font: inherit; padding: 7px 9px; border: 1px solid var(--border); border-radius: 6px;
  background: #fff; color: inherit; resize: vertical; min-width: 0;
}
.field { min-width: 0; }
/* 오류 컨트롤 공용 표시(S6) — aria-invalid 를 세팅하는 화면 전부가 같은 시각 신호를 얻는다. */
.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 1px rgba(156, 43, 35, .12);
}
.field input:disabled, .field textarea:disabled, .field select:disabled {
  background: #f1f2f4; color: var(--muted); cursor: not-allowed;
}
.field-error { color: var(--danger); font-size: 12px; margin: 2px 0 0; min-height: 15px; }
.field-error:empty { display: none; }
.field-hint { color: var(--muted); font-size: 12px; margin: 2px 0 0; }
.notice { color: var(--muted); font-size: 13px; }
.notice:empty { display: none; }
.inline-form { display: flex; flex-direction: column; gap: 2px; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px dashed var(--border); }

/* ---- 버튼 ------------------------------------------------------------------ */
button, .button-link {
  font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: #fff; cursor: pointer; color: inherit; text-decoration: none;
}
button:hover:not(:disabled), .button-link:hover { background: #f1f3f5; }
button:disabled { color: #4b5563; cursor: not-allowed; opacity: 1; background: #f1f2f4; }
button[type="submit"], .actions button:first-child {
  background: #16191d; color: #fff; border-color: #16191d;
}
button[type="submit"]:hover:not(:disabled), .actions button:first-child:hover:not(:disabled) { background: #33383f; }
button[type="submit"]:disabled, .actions button:first-child:disabled {
  background: #e4e7ec; border-color: #cfd4dc; color: #4b5563;
}
button.danger { border-color: var(--danger); color: var(--danger); background: #fff; }
button.danger:hover:not(:disabled) { background: var(--danger-bg); }
.actions { display: flex; gap: 8px; margin-top: 12px; }

/* ---- T7.2 화자·그룹 행 목록 ------------------------------------------------ */
.badge-full { background: var(--warning-bg); color: var(--warning); }
.list.rows { max-height: none; }
.row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px; justify-content: space-between;
  background: #fbfbfc; border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px;
}
.row-main { display: flex; flex-direction: column; gap: 2px; min-width: 180px; }
.row-actions { display: flex; gap: 6px; }
.audio-slot { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }

/* ---- 그룹 편성 체크리스트 --------------------------------------------------- */
.panel-group-editor { margin-top: 16px; }
.panel-group-editor h3 { display: flex; align-items: center; gap: 8px; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin: 10px 0 0; }
legend { font-size: 12px; font-weight: 600; color: var(--muted); padding: 0 4px; }
.checklist { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; max-height: 260px; overflow-y: auto; }
.checklist label { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.checklist input[type="checkbox"]:disabled + span { color: var(--muted); }

/* ---- T7.3 세션 목록·이벤트 시계열 테이블 ------------------------------------ */
.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;
}
.panel-timeline { margin-top: 16px; }
.table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
.table th, .table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-size: 11px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #fbfbfc; }
.table tbody tr:hover { background: #f7f8fa; }
.table .cell-text { white-space: pre-wrap; word-break: break-word; max-width: 32ch; }
.badge-ok { background: var(--success-bg); color: var(--success); }
.badge-warn { background: var(--warning-bg); color: var(--warning); }
.badge-type-partial { background: var(--info-bg); color: var(--muted); }
.badge-type-final { background: var(--success-bg); color: var(--success); }
.badge-type-speakers { background: #eef0ff; color: #4750c0; }
.badge-type-error, .badge-type-rejected { background: var(--danger-bg); color: var(--danger); }
.badge-type-session_started { background: #e6f0ff; color: #2f6fed; }
.badge-type-session_ended { background: #eef0ff; color: #4750c0; }
.timeline-summary { display: flex; flex-direction: column; gap: 4px; margin: 10px 0; }
.timeline-summary .notice { margin: 0; }
.session-pagination { align-items: center; justify-content: flex-end; flex-wrap: wrap; }
.session-pagination .item-meta { margin: 0 4px; }
.page-size-control, .event-text-toggle {
  display: inline-flex; align-items: center; gap: 5px; color: var(--muted); font-size: 12px;
}
.page-size-control select {
  font: inherit; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; background: #fff;
}
.page-size-control select:disabled { background: #f1f2f4; cursor: not-allowed; }
.session-summary {
  margin: 10px 0; padding: 12px; border: 1px solid var(--border);
  border-radius: 8px; background: #fbfbfc;
}
.session-summary h4 { margin: 0 0 10px; }
.session-summary-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.session-summary-heading h4 { margin: 0; }
.session-summary-grid {
  display: grid; grid-template-columns: max-content minmax(0, 1fr) max-content minmax(0, 1fr);
  gap: 6px 12px; margin: 0;
}
.session-summary-grid dt { color: var(--muted); font-size: 12px; font-weight: 600; }
.session-summary-grid dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.event-filter-bar {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border);
}
.event-filter-overview { font-size: 13px; }
.event-filter-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.event-filter-label { color: var(--muted); font-size: 12px; font-weight: 600; }
.event-filter-chip { padding: 5px 9px; font-size: 12px; }
.event-type-filter-chip[aria-pressed="false"] {
  color: var(--muted); background: var(--info-bg); border-style: dashed;
}
.event-type-filter-chip:disabled { color: inherit; background: #fff; }
.event-speaker-filter-chip[aria-pressed="true"] {
  color: #fff; background: #16191d; border-color: #16191d;
}
.event-filter-inputs { gap: 10px 16px; }
.event-search-filter {
  display: inline-flex; flex: 1 1 320px; align-items: center; gap: 6px;
}
.event-search-filter input {
  flex: 1; min-width: 160px; max-width: 420px; font: inherit;
  padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; background: #fff;
}
.event-window {
  min-height: 280px; max-height: 65vh; overflow: auto; margin-top: 10px;
  border: 1px solid var(--border); border-radius: 6px;
}
.event-window .event-table { min-width: 920px; margin-top: 0; }
.event-window .event-table thead { position: sticky; top: 0; z-index: 1; }
.event-window .event-row { height: var(--event-row-height); }
.event-window .event-cell-content {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  max-height: calc(var(--event-row-height) - 16px); overflow: auto;
}
.event-window-spacer td { padding: 0 !important; border: 0 !important; }
.event-window-spacer { pointer-events: none; }
.event-raw-detail {
  margin-top: 10px; padding: 12px; border: 1px solid var(--border);
  border-radius: 6px; background: #fbfbfc;
}
.event-raw-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.event-raw-heading h4 { margin: 0; }
.event-raw-detail .item-meta { margin: 8px 0 0; }
.event-raw-pre {
  max-height: 240px; overflow: auto; margin: 10px 0 0; padding: 8px;
  border-radius: 5px; background: #fff; font: 11px/1.45 ui-monospace, SFMono-Regular, Consolas, monospace;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
@media (max-width: 700px) {
  .session-summary-grid { grid-template-columns: max-content minmax(0, 1fr); }
}

/* ---- P10 sortformer 관통 데모 -------------------------------------------- */
.demo-layout {
  grid-template-columns: minmax(230px, .85fr) minmax(300px, 1fr) minmax(360px, 1.45fr);
}
.demo-mode { display: flex; flex-direction: column; gap: 6px; }
.demo-mode label, .panel fieldset > label { display: flex; align-items: center; gap: 6px; }
.demo-speaker-list .item-meta { overflow-wrap: anywhere; }
.demo-config, .demo-stats {
  display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 5px 10px;
  margin: 8px 0 12px; font-size: 12px;
}
.demo-config dt, .demo-stats dt { color: var(--muted); font-weight: 600; }
.demo-config dd, .demo-stats dd { margin: 0; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.demo-file-controls {
  border-top: 1px dashed var(--border); margin-top: 14px; padding-top: 12px;
}
.demo-pcm-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.demo-panel-heading {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px; justify-content: space-between;
}
.demo-panel-heading h3 { margin: 0; }
.demo-panel-heading button { padding: 4px 9px; font-size: 12px; }
.demo-timeline {
  list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column;
  gap: 8px; max-height: 72vh; overflow-y: auto;
}
.demo-frame {
  border: 1px solid var(--border); border-left-width: 4px; border-radius: 7px;
  padding: 9px 10px; background: #fbfbfc; min-width: 0;
}
.demo-frame-partial { color: var(--muted); background: #f3f4f6; border-left-color: #9aa1aa; }
.demo-frame-final { background: var(--success-bg); border-left-color: var(--success); color: #183c27; }
.demo-frame-lifecycle { background: #eaf0ff; border-left-color: var(--focus-ring); }
.demo-frame-diagnostic { background: #eef0ff; border-left-color: #6068c8; }
.demo-frame-error, .demo-frame-invalid { background: var(--danger-bg); border-left-color: var(--danger); }
.demo-frame-unknown { border-left-color: var(--warning); }
.demo-frame.demo-frame-orphan {
  border-color: #d79a22; border-left-color: #d07900; box-shadow: inset 0 0 0 1px #f4d99c;
}
.demo-frame-head { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; }
.demo-frame-head time { margin-left: auto; font-size: 11px; font-variant-numeric: tabular-nums; }
.demo-frame-summary { margin: 7px 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.demo-frame pre {
  max-height: 180px; overflow: auto; margin: 0; padding: 7px; border-radius: 5px;
  background: #fff9; font: 11px/1.45 ui-monospace, SFMono-Regular, Consolas, monospace;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
@media (max-width: 1100px) {
  .demo-layout { grid-template-columns: minmax(220px, 1fr) minmax(280px, 1fr); }
  .demo-timeline-panel { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .demo-layout { grid-template-columns: 1fr; }
  .demo-timeline-panel { grid-column: auto; }
  .demo-pcm-options { grid-template-columns: 1fr; }
  .demo-frame-head time { margin-left: 0; width: 100%; }
}