:root {
  --bg: #f4f5f8;
  --card: #ffffff;
  --ink: #1b1e2b;
  --sub: #6b7180;
  --faint: #9aa0ad;
  --line: #e7e9ef;
  --sidebar: #171a28;
  --sidebar-ink: #c7ccd8;
  --sidebar-active: #ff6b57;
  --accent: #ff6b57;
  --accent-soft: #fff0ed;
  --green: #23b26d;
  --red: #e5484d;
  --amber: #f5a623;
  --shadow: 0 1px 3px rgba(18,22,40,.06), 0 1px 2px rgba(18,22,40,.04);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: var(--bg); color: var(--ink); font-size: 14px; -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
a { color: inherit; }

/* ---------- 로그인 ---------- */
.login { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: var(--sidebar); padding: 20px; }
.login-card { background: var(--card); border-radius: 16px; padding: 36px 28px; width: 100%; max-width: 340px; display: flex; flex-direction: column; gap: 12px; box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.login-logo { font-size: 24px; font-weight: 800; text-align: center; }
.login-title { text-align: center; color: var(--sub); margin-bottom: 12px; font-weight: 600; }
.login-card input { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 15px; }
.login-card input:focus { outline: none; border-color: var(--accent); }
.login-err { color: var(--red); font-size: 13px; text-align: center; min-height: 16px; }

/* ---------- 레이아웃 ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 232px; background: var(--sidebar); color: var(--sidebar-ink); display: flex; flex-direction: column; position: fixed; inset: 0 auto 0 0; z-index: 30; }
.brand { font-size: 19px; font-weight: 800; color: #fff; padding: 22px 22px 18px; display: flex; align-items: baseline; gap: 8px; text-decoration: none; cursor: pointer; }
.brand:hover { opacity: .85; }
.brand-sub { font-size: 10px; letter-spacing: 2px; color: var(--accent); font-weight: 700; }
.nav { flex: 1; padding: 6px 12px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav a { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 10px; color: var(--sidebar-ink); text-decoration: none; font-weight: 600; font-size: 14px; cursor: pointer; }
.nav a .ic { width: 20px; text-align: center; font-size: 16px; }
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a.active { background: var(--accent); color: #fff; }
.logout { margin: 12px; padding: 11px; background: rgba(255,255,255,.07); color: var(--sidebar-ink); border: none; border-radius: 10px; cursor: pointer; font-weight: 600; }
.logout:hover { background: rgba(255,255,255,.13); color: #fff; }
.scrim { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 25; }

.main { flex: 1; margin-left: 232px; display: flex; flex-direction: column; min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 20; background: var(--card); border-bottom: 1px solid var(--line); padding: 0 24px; height: 60px; display: flex; align-items: center; gap: 14px; }
.topbar h1 { font-size: 18px; font-weight: 700; flex: 1; }
.menu-btn { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--ink); }
.content { padding: 24px; max-width: 1200px; width: 100%; }

/* ---------- 버튼 ---------- */
.btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 9px; padding: 8px 14px; font-size: 13px; font-weight: 600; cursor: pointer; }
.btn:hover { background: #f7f8fa; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: #f2543e; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; padding: 12px; font-size: 15px; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-danger { color: var(--red); border-color: #f2c9cb; }
.btn-danger:hover { background: #fdecec; }
.btn[disabled] { opacity: .5; cursor: default; }

/* ---------- KPI ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; margin-bottom: 22px; }
.kpi { background: var(--card); border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow); }
.kpi .label { color: var(--sub); font-size: 12px; font-weight: 600; }
.kpi .value { font-size: 28px; font-weight: 800; margin-top: 6px; letter-spacing: -.5px; }
.kpi .sub { color: var(--faint); font-size: 11px; margin-top: 3px; }
.kpi.accent .value { color: var(--accent); }

/* ---------- 카드/차트 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.card { background: var(--card); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); margin-bottom: 16px; }
.card h3 { font-size: 14px; font-weight: 700; margin-bottom: 14px; display: flex; justify-content: space-between; align-items: center; }
.card h3 .muted { color: var(--faint); font-weight: 600; font-size: 12px; }
.chart { width: 100%; overflow-x: auto; }
.chart svg { display: block; }
.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; }
.bar-row .bl { width: 84px; font-size: 12px; color: var(--sub); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-track { flex: 1; background: #eef0f4; border-radius: 6px; height: 16px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 6px; }
.bar-row .bc { width: 44px; text-align: right; font-size: 12px; color: var(--sub); font-variant-numeric: tabular-nums; }

/* ---------- 테이블 ---------- */
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; align-items: center; }
.toolbar input, .toolbar textarea { border: 1px solid var(--line); border-radius: 9px; padding: 9px 12px; font-size: 13px; font-family: inherit; }
.toolbar input:focus, .toolbar textarea:focus { outline: none; border-color: var(--accent); }
.search { flex: 1; min-width: 160px; }
.table-wrap { background: var(--card); border-radius: 14px; box-shadow: var(--shadow); overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--sub); font-weight: 600; font-size: 12px; background: #fafbfc; position: sticky; top: 0; }
tbody tr:hover { background: #fafbfc; }
td.wrap { white-space: normal; min-width: 200px; }
.pill { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.pill.on { background: #e7f7ef; color: var(--green); }
.pill.off { background: #f0f1f4; color: var(--faint); }
.pill.plus { background: var(--accent-soft); color: var(--accent); }
.pill.reason { background: #fdf0e3; color: var(--amber); }
.muted { color: var(--faint); }
.pager { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 14px; color: var(--sub); font-size: 13px; }
.empty { text-align: center; color: var(--faint); padding: 40px; }
.spinner { text-align: center; color: var(--faint); padding: 40px; }
.actions { display: flex; gap: 6px; }
label.fld { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--sub); font-weight: 600; }
label.fld input, label.fld textarea { border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; font-size: 14px; font-family: inherit; }
.form-card { max-width: 520px; }
.hint { color: var(--faint); font-size: 12px; }

/* ---------- 세그먼트 토글 ---------- */
.seg { display: inline-flex; background: #eef0f4; border-radius: 9px; padding: 3px; gap: 2px; }
.seg button { border: none; background: none; padding: 6px 16px; border-radius: 7px; font-size: 13px; font-weight: 600; cursor: pointer; color: var(--sub); }
.seg button.on { background: var(--card); color: var(--ink); box-shadow: var(--shadow); }

/* ---------- 모달 ---------- */
.modal-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 50; display: flex; align-items: flex-start; justify-content: center; padding: 5vh 16px; overflow-y: auto; }
.modal { background: var(--card); border-radius: 16px; width: 100%; max-width: 580px; box-shadow: 0 24px 70px rgba(0,0,0,.35); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.modal-head h2 { font-size: 16px; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--sub); line-height: 1; }
.modal-body { padding: 20px; }
.modal-body h4 { font-size: 12px; color: var(--sub); text-transform: uppercase; letter-spacing: .5px; margin: 20px 0 10px; }
.modal-body h4:first-child { margin-top: 0; }
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mini { background: var(--bg); border-radius: 10px; padding: 12px; text-align: center; }
.mini .v { font-size: 20px; font-weight: 800; }
.mini .l { font-size: 11px; color: var(--sub); margin-top: 2px; }
.idcopy { font-family: ui-monospace, monospace; font-size: 12px; color: var(--sub); cursor: pointer; background: var(--bg); padding: 2px 7px; border-radius: 6px; }
.idcopy:hover { color: var(--accent); }
.mini-list { font-size: 13px; }
.mini-list .row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line); }
.mini-list .row:last-child { border: none; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.answered-box { background: var(--accent-soft); border-radius: 10px; padding: 12px; font-size: 13px; margin-top: 8px; }
.answered-box b { color: var(--accent); }

/* ---------- 토스트 ---------- */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 10px; font-size: 14px; font-weight: 600; opacity: 0; pointer-events: none; transition: all .25s; z-index: 100; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 반응형 ---------- */
@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .app.nav-open .sidebar { transform: translateX(0); }
  .app.nav-open .scrim { display: block; }
  .main { margin-left: 0; }
  .menu-btn { display: block; }
  .content { padding: 16px; }
  .hide-sm { display: none !important; }
}
@media (max-width: 560px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi .value { font-size: 22px; }
  .hide-xs { display: none !important; }
}