/*
 * [app.css] — 전체 스타일. 외부 프레임워크 없음.
 *
 * 구성: 변수 → 기본 → 헤더/탭 → 현황판 → 카드/폼/모달 → 토스트 → 모바일.
 * 색 규칙: 색은 K-Eduplex 디자인 토큰(D-29)에서 온다. 확정 = 엷은 회색 면, 대기 = 강조색 빗금, 내 예약 = 브랜드 엷은 색 + 왼쪽 굵은 선, 지난 시간 = 흐림. (02-아키텍처.md 8절)
 */

:root {
  --row-h: 44px;
  --label-w: 120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--canvas); color: var(--text); font-family: var(--font-body); font-size: 16px; line-height: 1.5; }
h1, h2, h3 { margin: 0; font-weight: 600; font-family: var(--font-heading); color: var(--ink); }
h2 { font-size: 16px; }
h3 { font-size: 13px; color: var(--text-muted); margin: 14px 0 6px; text-transform: uppercase; letter-spacing: .02em; }
p { margin: 0 0 8px; }
a { color: var(--ink); text-decoration-color: var(--brand); }
.muted { color: var(--text-muted); }
.small { font-size: 12px; }
.error { color: var(--danger); }
.note { background: color-mix(in srgb, var(--highlight) 22%, var(--surface)); border: 1px solid var(--line); color: var(--ink); border-radius: var(--radius-sm); padding: 8px 10px; font-size: 13px; }
.lead { font-size: 15px; font-weight: 500; }
[hidden] { display: none !important; }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 2px solid var(--action-strong); outline-offset: 2px; }
button, input, select, textarea { font-family: inherit; }

/* ---------- 통신 중 표시 ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 100; background: transparent; }
.progress-bar { height: 100%; width: 30%; background: var(--brand); border-radius: 0 2px 2px 0; animation: progress-slide 1.1s ease-in-out infinite; }
@keyframes progress-slide { 0% { transform: translateX(-100%); } 100% { transform: translateX(340%); } }
.btn.busy { position: relative; color: transparent !important; pointer-events: none; }
.btn.busy::after { content: ''; position: absolute; left: 50%; top: 50%; width: 14px; height: 14px; margin: -7px 0 0 -7px; border: 2px solid color-mix(in srgb, var(--text) 25%, transparent); border-top-color: currentColor; border-radius: 50%; animation: spin .7s linear infinite; color: var(--text); }
.btn-primary.busy::after, .btn-warn.busy::after, .btn-success.busy::after { border-color: color-mix(in srgb, var(--on-action) 40%, transparent); border-top-color: var(--on-action); }
@keyframes spin { to { transform: rotate(360deg); } }
.board-wrap.loading { opacity: .55; transition: opacity .2s; }
@media (prefers-reduced-motion: reduce) { .progress-bar, .btn.busy::after { animation-duration: 2s; } }

/* ---------- 헤더 ---------- */
.header { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.header h1 { font-size: 18px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo { height: 32px; width: auto; display: block; }
.brand .tz { margin-left: 0; display: block; }
.header .tz { font-size: 12px; color: var(--text-muted); margin-left: 10px; }
.header-right { display: flex; align-items: center; gap: 10px; }
.tabs { display: flex; gap: 4px; padding: 8px 16px 0; background: var(--surface); border-bottom: 1px solid var(--line); }
.tab { border: 0; background: none; padding: 8px 12px; font-size: 14px; color: var(--text-muted); border-bottom: 2px solid transparent; cursor: pointer; }
.tab.active { color: var(--ink); border-bottom-color: var(--brand); font-weight: 600; }
.tab-badge { display: inline-block; margin-left: 6px; font-size: 12px; padding: 1px 7px; border-radius: 999px; background: color-mix(in srgb, var(--highlight) 22%, var(--surface)); color: var(--ink); font-weight: 600; }
.settings { max-width: 720px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.settings .card h3 { margin-top: 0; }
.kv-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.kv-table td { padding: 5px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.kv-table td:first-child { color: var(--text-muted); width: 45%; }
.kv-table.perf th { text-align: left; color: var(--text-muted); font-weight: 500; padding: 5px 6px; border-bottom: 1px solid var(--line); }
.kv-table.perf td { padding: 4px 6px; width: auto; font-variant-numeric: tabular-nums; }
.kv-table.perf td:first-child { width: auto; color: var(--text); }
.table-scroll { overflow-x: auto; }
.kv-table.usage td, .kv-table.usage th { white-space: nowrap; }
.kv-table.usage th { text-align: right; }
.kv-table.usage th:first-child, .kv-table.usage td:first-child { text-align: left; }
.kv-table.usage td { text-align: right; }
.kv-table.usage.left th, .kv-table.usage.left td { text-align: left; }
.warn-text { color: var(--danger); font-weight: 600; }
.check-list { margin: 8px 0 0; padding-left: 18px; }
.check-list .ok { color: var(--success); }
.check-list .bad { color: var(--danger); }
.view { padding: 14px 16px 40px; }
.banner { background: color-mix(in srgb, var(--highlight) 22%, var(--surface)); color: var(--ink); padding: 6px 16px; font-size: 13px; text-align: center; }

/* ---------- 로그인 ---------- */
.login { max-width: 420px; margin: 60px auto; background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 28px; text-align: center; }
.login h2 { margin-bottom: 8px; }
.login .btn-block { margin-top: 8px; }
#login-button { display: flex; flex-direction: column; align-items: center; margin-top: 16px; }

.spinner { width: 36px; height: 36px; margin: 8px auto 14px; border: 3px solid color-mix(in srgb, var(--brand) 22%, var(--surface)); border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
.spinner.small { width: 22px; height: 22px; border-width: 2px; margin: 18px auto; }
.loading-center { text-align: center; padding: 28px 0; color: var(--text-muted); }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 1.6s; } }

/* ---------- 버튼/입력 ---------- */
.btn { border: 1px solid var(--control-border); background: var(--surface); color: var(--ink); border-radius: var(--radius-pill); min-height: 40px; padding: 8px 16px; font-size: 14px; cursor: pointer; }
.btn:hover { background: var(--surface-sunken); }
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--action); border-color: var(--action); color: var(--on-action); }
.btn-primary:hover { background: var(--action-strong); border-color: var(--action-strong); }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--surface-sunken); }
.btn-success { background: var(--success); border-color: var(--success); color: var(--on-action); }
.btn-warn { background: var(--warning); border-color: var(--warning); color: var(--on-action); }
.btn-sm { padding: 4px 14px; font-size: 14px; min-height: 32px; }
.btn-block { display: block; width: 100%; text-align: left; }
.btn-alt { display: block; width: 100%; text-align: left; margin-bottom: 6px; }
.icon-btn { border: 1px solid var(--control-border); background: var(--surface); color: var(--ink); border-radius: var(--radius-pill); width: 32px; height: 32px; font-size: 18px; line-height: 1; cursor: pointer; }
.seg { border: 1px solid var(--control-border); background: var(--surface); color: var(--ink); padding: 6px 12px; cursor: pointer; font-size: 13px; }
.seg:first-of-type { border-radius: var(--radius-pill) 0 0 var(--radius-pill); }
.seg + .seg { border-left: 0; border-radius: 0 var(--radius-pill) var(--radius-pill) 0; }
.group-tabs .seg:not(:first-of-type):not(:last-of-type) { border-radius: 0; }
.seg.active { background: color-mix(in srgb, var(--brand) 22%, var(--surface)); color: var(--ink); font-weight: 600; }
.input, .select, .date-input { border: 1px solid var(--control-border); border-radius: var(--radius-sm); padding: 7px 10px; font-size: 16px; background: var(--surface); color: var(--text); width: 100%; font-family: inherit; }
/* 한 줄 입력 칸 높이를 맞춘다 — 브라우저 기본 날짜 칸(42px)이 숫자·텍스트 칸(38px)보다 높아 나란히 놓으면 어긋났다(2026-10-27) 예약 폼 안에만(현황판 툴바 제외) */
form.form input.input, form.form .select { min-height: 42px; box-sizing: border-box; }
.date-input { width: auto; }
.select { width: auto; min-width: 90px; }
.field { display: block; margin-bottom: 10px; }
.field-label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.field-label .req { color: var(--danger); }
.field .select { width: 100%; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-room { grid-template-columns: 3fr 2fr; }   /* 예약 폼: 장소(넓게) + 용도 — 2026-10-27 */
.grid-3 { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 10px; }
.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
details.optional { border: 1px dashed var(--line); border-radius: var(--radius-sm); padding: 8px 10px; margin-bottom: 10px; }
details.optional summary { cursor: pointer; color: var(--text-muted); font-size: 13px; margin-bottom: 6px; }

/* ---------- 참석자 칩 입력 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; border: 1px solid var(--control-border); border-radius: var(--radius-sm); padding: 5px 8px; background: var(--surface); position: relative; cursor: text; }
.chips:focus-within { border-color: var(--brand); }
.chip { display: inline-flex; align-items: center; gap: 6px; background: color-mix(in srgb, var(--brand) 22%, var(--surface)); color: var(--ink); border-radius: var(--radius-pill); padding: 2px 8px 2px 10px; font-size: 13px; max-width: 100%; }
.chip .chip-name { font-weight: 600; }
.chip .chip-mail { color: var(--ink); font-size: 12px; }
.chip button { border: 0; background: none; color: var(--ink); cursor: pointer; font-size: 15px; line-height: 1; padding: 0 2px; }
.chip.invalid { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--ink); }
.chips input { border: 0; flex: 1; min-width: 160px; padding: 4px 2px; font: inherit; background: transparent; color: var(--text); }
.suggest { position: absolute; left: 0; right: 0; top: 100%; margin-top: 4px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); box-shadow: var(--shadow-overlay); z-index: 20; max-height: 220px; overflow: auto; }
.suggest-item { padding: 8px 12px; cursor: pointer; display: flex; flex-direction: column; }
.suggest-item:hover, .suggest-item.active { background: var(--surface-sunken); }
.suggest-item .s-name { font-weight: 600; font-size: 13px; }
.suggest-item .s-mail { color: var(--text-muted); font-size: 12px; }
.row-sub .approval-mark, .row-name .approval-mark { color: var(--warning); font-weight: 700; margin-left: 2px; }

/* ---------- 툴바 ---------- */
.toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.toolbar-group { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.toolbar-label { font-weight: 600; margin-left: 6px; }

/* ---------- 현황판 ---------- */
.board-wrap { font-size: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); overflow-x: auto; padding-bottom: 6px; }
.grid { display: inline-block; min-width: 100%; }
.row { display: flex; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.row-label { flex: 0 0 var(--label-w); position: sticky; left: 0; background: var(--surface); z-index: 2; padding: 6px 10px; border-right: 1px solid var(--line); min-height: var(--row-h); display: flex; flex-direction: column; justify-content: center; }
.row-label-head { min-height: 28px; font-weight: 600; }
.row-label.is-today .row-name { color: var(--ink); text-decoration-line: underline; text-decoration-color: var(--brand); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.row-label.is-inactive .row-name, .row-label.is-inactive .row-sub { color: var(--text-muted); }
.group-tabs { display: inline-flex; margin-right: 8px; }
.group-tabs .seg { font-weight: 600; }
.row-name { font-weight: 600; }
.row-sub { font-size: 12px; color: var(--text-muted); }
.track { position: relative; height: var(--row-h); flex: 0 0 auto; background: repeating-linear-gradient(to right, transparent 0, transparent 25px, color-mix(in srgb, var(--line) 50%, var(--surface)) 25px, color-mix(in srgb, var(--line) 50%, var(--surface)) 26px); cursor: crosshair; }
.track-head { height: 28px; background: none; cursor: default; }
.hour-label { position: absolute; top: 6px; font-size: 12px; color: var(--text-muted); padding-left: 4px; border-left: 1px solid var(--line); height: 16px; }
.hour-line { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--line); pointer-events: none; }
.past-shade { position: absolute; top: 0; bottom: 0; left: 0; background: color-mix(in srgb, var(--text) 4%, transparent); pointer-events: none; }
.event { position: absolute; top: 5px; height: calc(var(--row-h) - 10px); background: var(--surface-sunken); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 6px; display: flex; align-items: center; overflow: hidden; white-space: nowrap; font-size: 14px; cursor: pointer; }
.event:hover { filter: brightness(.96); }
.event.mine { background: color-mix(in srgb, var(--brand) 22%, var(--surface)); color: var(--ink); border-color: transparent; border-left: 4px solid var(--brand); }
.event.pending { background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--highlight) 35%, var(--surface)) 0, color-mix(in srgb, var(--highlight) 35%, var(--surface)) 6px, color-mix(in srgb, var(--highlight) 15%, var(--surface)) 6px, color-mix(in srgb, var(--highlight) 15%, var(--surface)) 12px); color: var(--ink); }
.event.pending.mine { background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--brand) 30%, var(--surface)) 0, color-mix(in srgb, var(--brand) 30%, var(--surface)) 6px, color-mix(in srgb, var(--brand) 12%, var(--surface)) 6px, color-mix(in srgb, var(--brand) 12%, var(--surface)) 12px); color: var(--ink); border-color: transparent; border-left: 4px solid var(--brand); }
.event.preempt { background: none; border: 2px dashed var(--warning); color: var(--warning); top: 2px; height: calc(var(--row-h) - 4px); z-index: 1; }
.event.warning { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--ink); border: 1px solid var(--danger); }
.event.past { opacity: .72; }
.event-title { overflow: hidden; text-overflow: ellipsis; }
.legend { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding: 10px 12px 4px; font-size: 12px; color: var(--text-muted); }
.legend-item { display: inline-flex; align-items: center; gap: 5px; }
.legend-hint { margin-left: auto; }
.swatch { display: inline-block; width: 14px; height: 14px; border-radius: 4px; }
.swatch-confirmed { background: var(--surface-sunken); }
.swatch-pending { background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--highlight) 35%, var(--surface)) 0, color-mix(in srgb, var(--highlight) 35%, var(--surface)) 4px, color-mix(in srgb, var(--highlight) 15%, var(--surface)) 4px, color-mix(in srgb, var(--highlight) 15%, var(--surface)) 8px); }
.swatch-mine { background: color-mix(in srgb, var(--brand) 22%, var(--surface)); box-shadow: inset 3px 0 0 var(--brand); }

/* ---------- 카드 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: 12px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 12px 14px; box-shadow: var(--shadow-card); }
.yield-card { border-left: 4px solid var(--warning); }
.yield-card .yield-auto { margin: 6px 0; font-weight: 600; color: var(--ink); }
.card-escalated { border-color: var(--line); background: var(--surface); border-left: 4px solid var(--warning); }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.card-title { font-size: 15px; font-weight: 600; margin: 2px 0; font-family: var(--font-heading); color: var(--ink); }
.kv { margin: 4px 0; }
.list { margin: 4px 0 0; padding-left: 18px; }
.badge { display: inline-block; font-size: 12px; padding: 2px 7px; border-radius: 999px; background: var(--surface-sunken); color: var(--ink); }
.badge-ok { background: var(--surface); color: var(--success); box-shadow: inset 0 0 0 1px var(--success); }
.badge-rejected { background: var(--surface); color: var(--danger); box-shadow: inset 0 0 0 1px var(--danger); }
.card-decided { opacity: .85; }
.section-title { font-size: 15px; margin: 22px 0 4px; font-family: var(--font-heading); color: var(--ink); }
.badge-pending { background: color-mix(in srgb, var(--highlight) 22%, var(--surface)); color: var(--ink); }
.badge-type { background: color-mix(in srgb, var(--brand) 22%, var(--surface)); color: var(--ink); }
.grade-top { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--ink); font-weight: 600; }
.grade-high { background: color-mix(in srgb, var(--highlight) 22%, var(--surface)); color: var(--ink); font-weight: 600; }
.grade-low { background: var(--surface-sunken); color: var(--ink); }

/* ---------- 모달 ---------- */
.modal-backdrop { position: fixed; inset: 0; background: color-mix(in srgb, var(--ink) 45%, transparent); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal { background: var(--surface); border-radius: var(--radius-lg); width: 100%; max-width: 460px; max-height: 92vh; overflow: auto; box-shadow: var(--shadow-overlay); }
.modal-wide { max-width: 560px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px 8px; }
.modal-body { padding: 4px 18px 18px; }
body.modal-open { overflow: hidden; }
.section { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }

.footer { text-align: center; font-size: 12px; color: var(--text-muted); padding: 20px 16px 30px; }
.footer a { color: var(--text-muted); }

/* ---------- 토스트 ---------- */
#toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: var(--ink); color: var(--surface); padding: 10px 16px; border-radius: var(--radius-md); font-size: 14px; opacity: 0; transform: translateY(8px); transition: all .25s; box-shadow: var(--shadow-overlay); }
.toast.show { opacity: 1; transform: none; }
.toast-ok { background: var(--success); color: var(--on-action); }
.toast-error { background: var(--danger); color: var(--on-action); }

/* ---------- 모바일 ---------- */
@media (max-width: 640px) {
  :root { --label-w: 84px; }
  .header .tz, .brand .tz { display: none; }
  .header { padding: 8px 12px; gap: 8px; }
  .header h1 { font-size: 16px; line-height: 20px; min-width: 0; overflow-wrap: anywhere; }
  .brand { gap: 8px; min-width: 0; }
  .brand > div { min-width: 0; }
  .brand .logo { height: 28px; flex: 0 0 auto; }
  #user-name { display: none; }   /* 좁은 화면에서는 이름을 숨기고 로그아웃 버튼만 */
  .header-right { gap: 6px; flex: 0 0 auto; }
  .header-right .btn { min-height: 32px; padding: 0 12px; font-size: 14px; }
  .header-right a[href*="help"] { display: none; }
  .view { padding: 10px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-room { grid-template-columns: 1fr; }
  .toolbar-label { width: 100%; margin-left: 0; }
  .legend-hint { margin-left: 0; width: 100%; }
}

/* ---------- 결재 현황 탭 ---------- */
.status-summary { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(160px, 100%), 1fr)); gap: 12px; margin-bottom: 4px; }
.stat-card { border-left: 4px solid var(--line); }
.stat-value { font-family: var(--font-heading); font-size: 24px; font-weight: 600; color: var(--ink); line-height: 1.2; }
.stat-warn { border-left: 4px solid var(--warning); }
.stat-danger { border-left: 4px solid var(--danger); }
.stat-block { border-left: 4px solid var(--success); }
.stat-block.stat-warn { border-left-color: var(--warning); }
.wait-card { border-left: 4px solid var(--success); }
.wait-card.wait-warn { border-left-color: var(--warning); background: color-mix(in srgb, var(--highlight) 12%, var(--surface)); }
.wait-card.wait-late { border-left-color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, var(--surface)); }
.metric { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; padding: 2px 0; color: var(--text); }
.metric-warn b { color: var(--warning); }
.status-note { margin-top: 18px; }