:root{
  --bg:#f4f6f8; --card:#fff; --ink:#1f2733; --muted:#6b7784; --line:#e3e8ee;
  --brand:#28B6CA; --brand-d:#1c93a4; --danger:#e2574c; --shadow:0 2px 10px rgba(20,40,60,.08);
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:'Segoe UI','Malgun Gothic',system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%}
button,input,select{font-family:inherit;font-size:15px}
a{color:inherit;text-decoration:none}

/* ---- topbar ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 16px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{font-weight:700;display:flex;align-items:center;gap:8px;font-size:17px}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(40,182,202,.18)}
.topbar nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.topbar nav a{padding:7px 12px;border-radius:8px;color:var(--muted);font-weight:600}
.topbar nav a.active{background:rgba(40,182,202,.12);color:var(--brand-d)}
.topbar nav a.ghost{color:var(--muted)}
.topbar .me{color:var(--ink);font-weight:600;padding:0 4px}

/* ---- toolbar ---- */
.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 16px}
.toolbar .range{font-weight:700;font-size:16px;margin-left:8px}
.nav-btns,.view-switch,.filter{display:flex;align-items:center;gap:6px}
.filter{margin-left:auto}
button{cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink);
  padding:8px 12px;border-radius:8px;font-weight:600;transition:.12s;white-space:nowrap}
button:hover{border-color:#cfd7df}
button.icon{padding:6px 12px;font-size:18px;line-height:1}
button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
button.primary:hover{background:var(--brand-d)}
button.ghost{background:transparent}
.view-switch button.active{background:var(--ink);color:#fff;border-color:var(--ink)}
select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--card);max-width:60vw}

/* ---- calendar ---- */
main{padding:0 16px 40px}
.cal{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.cal-head{display:grid;border-bottom:1px solid var(--line)}
.cal-head .corner{border-right:1px solid var(--line)}
.cal-head .col{padding:8px 6px;text-align:center;font-weight:600;font-size:13px;border-right:1px solid var(--line);color:var(--muted)}
.cal-head .col:last-child{border-right:0}
.cal-head .col .d{font-size:18px;color:var(--ink)}
.cal-head .col.today .d{color:var(--brand-d)}
.cal-body{display:grid;position:relative;max-height:70vh;overflow-y:auto}
.time-col{border-right:1px solid var(--line)}
.time-slot{height:48px;border-bottom:1px dashed var(--line);font-size:11px;color:var(--muted);padding:2px 4px;text-align:right}
.day-col{position:relative;border-right:1px solid var(--line)}
.day-col:last-child{border-right:0}
.day-col .slot{height:48px;border-bottom:1px dashed var(--line)}
.event{position:absolute;left:2px;right:2px;border-radius:7px;padding:4px 6px;color:#fff;overflow:hidden;
  font-size:12px;line-height:1.25;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.18)}
.event .t{font-weight:700;font-size:11px;opacity:.95}
.event .ttl{font-weight:600}
.event .sub{opacity:.9;font-size:11px}
.event .badge{display:inline-block;background:rgba(255,255,255,.28);border-radius:4px;padding:0 4px;font-size:10px;margin-right:3px}
.event.editable{cursor:grab;touch-action:none}
.event.editable:active{cursor:grabbing}
.event .rz{position:absolute;left:0;right:0;bottom:0;height:9px;cursor:ns-resize;
  border-radius:0 0 7px 7px;background:linear-gradient(rgba(255,255,255,0),rgba(0,0,0,.18))}

/* 공휴일/주말 헤더 강조 */
.cal-head .col.holiday,.cal-head .col.holiday .d{color:var(--danger)}
.cal-head .col.sat,.cal-head .col.sat .d{color:#2b6cb0}
.cal-head .col .hol{font-size:10px;font-weight:700;color:var(--danger);margin-top:2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 드래그 생성 고스트 */
.event.ghost{background:rgba(40,182,202,.35);border:1.5px dashed var(--brand-d);
  color:transparent;pointer-events:none;box-shadow:none}

/* month view */
.cal.month{padding:0}
.m-head{display:grid;grid-template-columns:repeat(7,1fr);border-bottom:1px solid var(--line)}
.m-dow{padding:8px 6px;text-align:center;font-weight:600;font-size:12px;color:var(--muted);
  border-right:1px solid var(--line)}
.m-dow:last-child{border-right:0}
.m-dow.sun{color:var(--danger)} .m-dow.sat{color:#2b6cb0}
.m-body{display:grid;grid-template-columns:repeat(7,1fr);grid-auto-rows:minmax(94px,1fr)}
.m-cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:4px 5px;min-height:94px;cursor:pointer;overflow:hidden}
.m-cell:nth-child(7n){border-right:0}
.m-cell.off{background:#fafbfc}
.m-cell.today{background:rgba(40,182,202,.08)}
.m-date{font-size:13px;font-weight:700;display:flex;align-items:center;gap:5px;color:var(--ink)}
.m-date.hol{color:var(--danger)} .m-date.sat{color:#2b6cb0}
.m-cell.off .m-date{color:#c2cbd3}
.m-hol{font-size:10px;font-weight:700;color:var(--danger)}
.m-chips{margin-top:3px;display:flex;flex-direction:column;gap:2px}
.m-chip{font-size:11px;line-height:1.5;color:#fff;border-radius:4px;padding:0 5px;cursor:pointer;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m-more{font-size:10px;color:var(--muted);font-weight:600;padding-left:2px}

/* list view */
.list{padding:6px}
.list .day-group{padding:10px 8px 4px;font-weight:700;color:var(--muted);border-bottom:1px solid var(--line)}
.list .li{display:flex;gap:10px;align-items:center;padding:12px 8px;border-bottom:1px solid var(--line);cursor:pointer}
.list .li:hover{background:#f9fbfc}
.list .swatch{width:10px;height:38px;border-radius:5px;flex:none}
.list .li .main{flex:1;min-width:0}
.list .li .main .top{font-weight:700}
.list .li .main .bot{color:var(--muted);font-size:13px}
.list .li .when{font-size:13px;color:var(--muted);text-align:right;white-space:nowrap}
.empty{padding:40px;text-align:center;color:var(--muted)}

/* ---- modal ---- */
.modal{position:fixed;inset:0;background:rgba(20,30,40,.45);display:flex;align-items:center;justify-content:center;z-index:70;padding:16px}
.modal.hidden{display:none}
.modal-card{background:var(--card);border-radius:14px;padding:20px;width:min(520px,100%);max-height:92vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.28)}
.modal-card h2{margin:0 0 14px}
.modal-card label{display:block;margin:10px 0;font-weight:600;font-size:13px;color:var(--muted)}
.modal-card label .opt{color:#aab3bc;font-weight:400}
.modal-card input,.modal-card select{width:100%;margin-top:5px;padding:10px;border:1px solid var(--line);border-radius:9px;font-weight:500;color:var(--ink)}
.modal-card .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.err{color:var(--danger);font-weight:600;min-height:0;margin:4px 0}
.err:empty{display:none}
.detail-row{display:flex;gap:10px;padding:7px 0;border-bottom:1px solid var(--line)}
.detail-row .k{width:88px;color:var(--muted);font-weight:600;flex:none}
.detail-row .v{font-weight:600}

/* ---- login ---- */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:linear-gradient(135deg,#e8f6f8,#f4f6f8)}
.login-card{background:var(--card);padding:32px;border-radius:16px;width:min(380px,92vw);box-shadow:var(--shadow)}
.login-card h1{margin:6px 0 18px;font-size:22px}
.login-card label{display:block;margin:12px 0;font-weight:600;font-size:13px;color:var(--muted)}
.login-card input{width:100%;margin-top:6px;padding:11px;border:1px solid var(--line);border-radius:9px}
.login-card button{width:100%;margin-top:16px;background:var(--brand);border-color:var(--brand);color:#fff;padding:12px}
.login-card .hint{color:var(--muted);font-size:12px;text-align:center;margin:14px 0 0}

/* ---- reports / admin ---- */
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:0 16px 16px;box-shadow:var(--shadow);overflow-x:auto}
.panel h2{margin:0 0 12px;font-size:17px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);font-size:14px;white-space:nowrap}
th{color:var(--muted);font-size:12px}
.bar{height:8px;border-radius:4px;background:var(--brand);min-width:2px}
.tag{display:inline-block;padding:1px 7px;border-radius:5px;font-size:12px;font-weight:600;background:rgba(40,182,202,.14);color:var(--brand-d)}
.tag.off{background:#f0e0df;color:var(--danger)}
.controls{display:flex;gap:10px;align-items:end;flex-wrap:wrap;margin-bottom:14px}
.controls label{font-size:12px;color:var(--muted);font-weight:600;display:block}
.controls input{padding:8px;border:1px solid var(--line);border-radius:8px;margin-top:4px}

/* ---- bottom tab bar: mobile only ---- */
.tabbar{display:none}

@media (max-width:720px){
  html,body{overflow-x:hidden}
  body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}

  /* 상단바: 브랜드 + 로그아웃만, 페이지 링크는 하단 탭으로 이동 */
  .topbar{padding:10px 12px}
  .topbar nav a:not(.ghost){display:none}
  .topbar nav .me{display:none}

  /* iOS 포커스 확대 방지(16px) + 터치 타깃 확대 */
  input,select,textarea{font-size:16px}
  button{min-height:44px}
  .view-switch button,.nav-btns button.icon{min-height:40px}

  /* 툴바 재배치 */
  .toolbar{gap:8px;padding:10px 12px}
  .nav-btns{flex:1}
  .toolbar .range{font-size:15px;margin-left:0;order:5;width:100%;text-align:center}
  .view-switch{order:6}
  .filter{order:7;margin-left:0;width:100%}
  .filter #deviceFilter{flex:1;max-width:none}

  /* 캘린더 */
  main{padding:0 8px 20px}
  .cal-body{max-height:none}
  .cal-head .col .d{font-size:16px}
  .m-body{grid-auto-rows:minmax(62px,1fr)}
  .m-cell{min-height:62px;padding:3px}
  .m-chip{font-size:10px} .m-hol{display:none}

  /* 모달: 하단 시트 스타일, 넉넉하게 */
  .modal{padding:0;align-items:flex-end}
  .modal-card{width:100%!important;max-width:100%;border-radius:16px 16px 0 0;
    max-height:94vh;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  .modal-card .row{grid-template-columns:1fr}
  .modal-actions button{min-height:46px;flex:1}

  /* 리포트/관리 표 가로 스크롤 */
  .panel{overflow-x:auto}
  #floormap svg{max-width:100%}

  /* 하단 탭바 */
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--card);
    border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -2px 12px rgba(20,40,60,.08)}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;
    color:var(--muted);font-size:11px;font-weight:700}
  .tabbar a .ic{font-size:21px;line-height:1}
  .tabbar a.active{color:var(--brand-d)}
}