:root{
  --primary:#3d4eda; --primary-d:#2f3db0; --sidebar:#1f2a63; --sidebar-2:#26327a;
  --bg:#eef1f8; --card:#fff; --line:#e3e8f2; --text:#1e2333; --muted:#7a839c;
  --ok:#22a06b; --warn:#e8a13a; --err:#e0483d; --chip:#eef1fb;
  --green:#2fa46a; --orange:#e8952f; --red:#e0483d;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:'Segoe UI',Roboto,'Malgun Gothic',sans-serif;background:var(--bg);color:var(--text);font-size:14px}
#app{display:flex;min-height:100vh}

/* sidebar */
.sidebar{width:236px;background:linear-gradient(180deg,var(--sidebar),var(--sidebar-2));color:#dfe4f5;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-logo{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,#5b7cff,#37c98a);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;letter-spacing:.5px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:14px;color:#fff}
.brand-text span{font-size:12px;color:#aeb8e0}
.nav{flex:1;overflow-y:auto;padding:10px 8px}
.nav-group{margin:6px 0}
.nav-group-title{font-size:11px;color:#8f9ad0;text-transform:uppercase;letter-spacing:.6px;padding:10px 12px 4px}
.nav a{display:flex;align-items:center;gap:9px;padding:9px 12px;margin:2px 4px;border-radius:8px;color:#cdd4f0;text-decoration:none;font-size:13.5px}
.nav a:hover{background:rgba(255,255,255,.07)}
.nav a.active{background:#fff;color:var(--primary);font-weight:600}
.nav a .ic{width:16px;text-align:center;opacity:.9}
.sidebar-foot{padding:14px 18px;font-size:11px;color:#8f9ad0;border-top:1px solid rgba(255,255,255,.08)}

/* main */
.main{flex:1;margin-left:236px;display:flex;flex-direction:column;min-width:0}
.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:5}
.crumbs{color:var(--muted);font-size:13px}
.topbar-right{display:flex;align-items:center;gap:12px}
.user{font-weight:600}
.view{padding:22px;max-width:1400px;width:100%}

/* pills / chips */
.pill{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.pill-ok{background:#e5f5ee;color:var(--ok)}
.pill-err{background:#fdeceb;color:var(--err)}
.pill-warn{background:#fdf3e3;color:var(--warn)}
.pill-mut{background:#eceef4;color:var(--muted)}
.chip{display:inline-block;padding:3px 9px;border-radius:6px;font-size:12px;font-weight:600;background:var(--chip);color:var(--primary)}
.chip-green{background:#e5f5ee;color:var(--green)}
.chip-gray{background:#eceef4;color:var(--muted)}
.chip-red{background:#fdeceb;color:var(--red)}
.chip-orange{background:#fff3e0;color:#e8830c}
/* F3: 대시보드 상단 사업장→센터 요약 strip */
.biz-strip{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.bcard{background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:10px;padding:12px 14px;min-width:220px;box-shadow:0 1px 2px rgba(20,30,60,.04)}
.bcard-h{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}
.bcard-name{font-weight:700;font-size:14px}
.bcard-cens{display:flex;flex-wrap:wrap;gap:6px}
.bcard-cens .chip b{color:var(--primary)}
/* F4: 절감량 사업장/센터 요약 */
.ps-grp{background:#f3f6ff}
.ps-grp td{border-top:2px solid #dbe4ff}
/* 대시보드 뷰 토글 + 카드형 */
.view-toggle{display:inline-flex;gap:4px;margin-left:8px}
.vbtn{border:1px solid #dfe3ea;background:#fff;border-radius:7px;padding:6px 11px;cursor:pointer;font-size:13px;color:var(--muted);font-weight:600}
.vbtn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.dcard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.dcard{background:#fff;border:1px solid #eceef4;border-radius:12px;padding:14px 16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.dcard-h{display:flex;justify-content:space-between;align-items:center;gap:8px}
.dcard-name{font-weight:700;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dcard-temp{text-align:center;font-size:30px;font-weight:800;margin:12px 0 8px}
.dcard-sensors{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;min-height:22px}
.dcard-f{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:12px;border-top:1px solid #f0f2f6;padding-top:10px}
.dcard-bp{margin-top:8px;text-align:center}
/* 전력절감량 카드형 */
.pscard .ps-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin:4px 0}
.ps-metric{margin-top:8px}
.ps-lbl{font-size:12px;color:var(--muted)}
.ps-val{font-size:12px;color:var(--muted);float:right}
.pbar{height:8px;border-radius:5px;background:#eef1f6;overflow:hidden;margin:3px 0}
.pbar-fill{height:100%;border-radius:5px}
.bar-blue{background:#2b6df0}
.bar-green{background:var(--green,#22a06b)}
.ps-summary{padding:16px 18px}
.ps-sum-top{display:flex;gap:32px;margin-bottom:14px}
.ps-sum-top .k{font-size:12px;color:var(--muted)}
.ps-sum-top .v{font-size:24px;font-weight:800}

/* page head */
.page-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.page-title{font-size:20px;font-weight:700}
.filters{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:3px}
.field label{font-size:11px;color:var(--muted)}
input,select{height:34px;border:1px solid var(--line);border-radius:8px;padding:0 10px;font-size:13px;background:#fff;color:var(--text)}
input:focus,select:focus{outline:none;border-color:var(--primary)}
.check{display:flex;align-items:center;gap:6px;font-size:13px;color:#444}
.check input{height:16px;width:16px}

/* buttons */
.btn{height:34px;padding:0 14px;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text)}
.btn-green{background:var(--green);color:#fff}
.btn-orange{background:var(--orange);color:#fff}
.btn-red{background:var(--red);color:#fff}
.btn-sm{height:28px;padding:0 10px;font-size:12px;border-radius:6px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* card + table */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 1px 2px rgba(20,30,60,.04);overflow:hidden;margin-bottom:18px}
.card-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line)}
.card-title{font-weight:700}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:11px 14px;white-space:nowrap}
th{color:var(--muted);font-weight:600;font-size:12px;background:#fafbfe;border-bottom:1px solid var(--line)}
tbody tr{border-bottom:1px solid #f1f3f9}
tbody tr:hover{background:#f8faff}
td.num,th.num{text-align:right}
.mac{font-family:ui-monospace,Consolas,monospace;font-size:12px;color:#556}
.temp-cold{color:#2b6df0;font-weight:600}
.temp-warn{color:var(--err);font-weight:600}
.muted{color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}
.spin{padding:40px;text-align:center;color:var(--muted)}

/* stat cards */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.stat .k{font-size:12px;color:var(--muted)}
.stat .v{font-size:26px;font-weight:800;margin-top:4px}
.stat .v small{font-size:13px;font-weight:600;color:var(--muted)}

/* modal */
#modal-root .overlay{position:fixed;inset:0;background:rgba(20,26,50,.45);display:flex;align-items:center;justify-content:center;z-index:50}
.modal{background:#fff;border-radius:14px;width:460px;max-width:94vw;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal h3{margin:0;padding:18px 20px;border-bottom:1px solid var(--line);font-size:16px}
.modal .body{padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.modal .body .field label{font-size:12px}
.modal .foot{display:flex;justify-content:flex-end;gap:8px;padding:14px 20px;border-top:1px solid var(--line)}

/* toast */
#toast-root{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:8px;z-index:80}
.toast{background:#222a44;color:#fff;padding:11px 15px;border-radius:9px;font-size:13px;box-shadow:0 8px 24px rgba(0,0,0,.2);animation:sl .25s ease}
.toast.ok{background:#1f7a54}.toast.err{background:#b93a30}
@keyframes sl{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef1f8,#dfe6fb)}
.login-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 20px 60px rgba(30,42,99,.12);padding:28px;width:380px;max-width:92vw;display:flex;flex-direction:column;gap:14px}
.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.login-brand strong{font-size:15px}
.login-err{color:var(--err);font-size:13px;background:#fdeceb;padding:8px 10px;border-radius:8px}
.login-hint{text-align:center;color:var(--muted);font-size:12px;margin-top:4px}
#login-root .field label{font-size:12px;color:var(--muted)}
#login-root input{height:40px}

/* 태블릿: 사이드바 아이콘 모드 */
@media(min-width:721px) and (max-width:1024px){
  .sidebar{width:64px}
  .sidebar .brand-text,.nav-group-title,.nav a span,.sidebar-foot{display:none}
  .main{margin-left:64px}
  .nav a{justify-content:center}
}

/* ===== PWA(홈화면 앱) 전체화면 — 노치/홈바 안전영역 ===== */
@media(display-mode:standalone){
  .topbar{padding-top:env(safe-area-inset-top)}
  .main{padding-top:0}
  .sidebar{padding-top:env(safe-area-inset-top)}
  .view{padding-bottom:calc(40px + env(safe-area-inset-bottom))}
  #modal-root .modal .foot{padding-bottom:calc(12px + env(safe-area-inset-bottom))}
  #toast-root{bottom:calc(12px + env(safe-area-inset-bottom))}
}

/* ===== 모바일(휴대폰) ≤720px ===== */
#navToggle,#navScrim{display:none}
@media(max-width:720px){
  body{font-size:15px}
  /* 사이드바 = 서랍(햄버거로 열기) */
  .sidebar{width:264px;transform:translateX(-100%);transition:transform .22s ease;z-index:60;box-shadow:0 0 40px rgba(0,0,0,.3)}
  body.nav-open .sidebar{transform:translateX(0)}
  .main{margin-left:0}
  #navScrim{display:block;position:fixed;inset:0;background:rgba(15,20,45,.45);z-index:55;opacity:0;pointer-events:none;transition:opacity .2s}
  body.nav-open #navScrim{opacity:1;pointer-events:auto}
  #navToggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
    margin-right:10px;border:1px solid var(--line);background:#fff;border-radius:9px;font-size:19px;
    cursor:pointer;color:var(--text);flex:none;line-height:1}
  /* 상단바 */
  .topbar{padding:0 12px;height:54px;gap:8px}
  .crumbs{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .topbar-right{gap:8px;font-size:12px}
  .user{font-size:12.5px;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:2px 8px}
  .view{padding:14px 12px 40px}

  /* 페이지 헤더/필터: 세로 정렬 + 터치 크기 */
  .page-head{gap:10px;margin-bottom:12px}
  .page-title{font-size:18px}
  .filters{width:100%;gap:8px}
  .filters .field{flex:1 1 46%;min-width:0}
  .filters .field select,.filters .field input{width:100%}
  select,input{height:42px;font-size:15px}   /* iOS 확대 방지(≥16px 권장이나 15px+터치높이) */
  .btn{height:42px;padding:0 16px;font-size:14px}
  .btn-sm{height:36px;padding:0 12px;font-size:13px}
  .btn-row{gap:6px}
  .check{font-size:13.5px}
  .view-toggle{margin-left:0}
  .vbtn{height:38px;padding:0 14px}

  /* 통계/카드 */
  .stats{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
  .stat{padding:12px}
  .stat .v{font-size:22px}
  .dcard-grid{grid-template-columns:1fr;gap:10px}
  .biz-strip{gap:10px}
  .bcard{min-width:0;width:100%}

  /* 표: 가로 스크롤 + 안내 */
  .table-wrap{-webkit-overflow-scrolling:touch}
  .table-wrap::after{content:"← 좌우로 밀어서 더 보기 →";display:block;text-align:center;
    font-size:11.5px;color:var(--muted);padding:8px 4px;background:var(--surface,#fff);
    border-top:1px dashed var(--line);position:sticky;left:0}
  th,td{padding:9px 11px;font-size:13px}
  .card-head{padding:11px 12px;flex-wrap:wrap;gap:6px}

  /* 모달 = 바텀시트 */
  #modal-root .overlay{align-items:flex-end}
  .modal{width:100%;max-width:100%;border-radius:16px 16px 0 0;max-height:92vh}
  .modal h3{padding:16px 16px 12px;font-size:15px;position:sticky;top:0;background:#fff;z-index:1}
  .modal .body{padding:14px 16px}
  .modal .foot{padding:12px 16px;position:sticky;bottom:0;background:#fff}
  .modal .foot .btn{flex:1;height:46px}
  #modal-root input,#modal-root select,#modal-root textarea{font-size:16px}  /* iOS 자동확대 방지 */

  /* 토스트 */
  #toast-root{left:12px;right:12px;bottom:12px}
  .toast{width:100%}

  /* 로그인 */
  .login-card{width:100%;padding:22px}
  #login-root input{height:46px;font-size:16px}
}
@media(max-width:380px){
  .stats{grid-template-columns:1fr}
  .filters .field{flex:1 1 100%}
}