:root{
  --bg:#f6f2eb;--card:#fffdf9;--line:#e5ded2;--text:#292722;--muted:#7b746a;
  --accent:#2d2a26;--soft:#eee7dc;--ok:#e6f2e7;--warn:#fff0cf;--danger:#fbe5e2;
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--text);font-family:'Noto Sans KR',sans-serif}
button,input,select,textarea{font:inherit}.shell{max-width:1120px;margin:0 auto;min-height:100vh;padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.brand{display:flex;align-items:center;gap:12px}.logo{width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800}.brand h1{font-size:20px;margin:0}.brand p{font-size:12px;color:var(--muted);margin:2px 0 0}.btn{border:0;border-radius:12px;padding:11px 14px;cursor:pointer;background:var(--accent);color:#fff;font-weight:700}.btn.secondary{background:var(--soft);color:var(--text)}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.danger{background:#7d332c}.grid{display:grid;gap:16px}.cards{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 28px rgba(50,43,34,.04)}.metric .label{font-size:13px;color:var(--muted)}.metric .value{font-size:26px;font-weight:800;margin-top:8px}.metric .sub{font-size:12px;color:var(--muted);margin-top:4px}.tabs{display:flex;gap:8px;overflow:auto;margin-bottom:16px}.tab{white-space:nowrap;border:1px solid var(--line);background:var(--card);padding:10px 14px;border-radius:999px;cursor:pointer}.tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.section-head h2{font-size:18px;margin:0}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:720px}.table th,.table td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.table th{font-size:12px;color:var(--muted)}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:700}.badge.ok{background:var(--ok)}.badge.wait{background:var(--warn)}.badge.off{background:#eee}.badge.danger{background:var(--danger)}.login{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(430px,100%);background:var(--card);border:1px solid var(--line);border-radius:24px;padding:28px}.login-card h1{margin:12px 0 8px}.login-card p{color:var(--muted);font-size:14px}.field{display:grid;gap:7px;margin:13px 0}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff}.row{display:flex;gap:10px}.row>*{flex:1}.notice{padding:12px 14px;background:#fff7df;border:1px solid #efddb0;border-radius:12px;font-size:13px;margin-bottom:14px}.list{display:grid;gap:10px}.item{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#fff}.item .title{font-weight:700}.item .meta{font-size:12px;color:var(--muted);margin-top:4px}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.32);display:grid;place-items:center;padding:20px;z-index:20}.modal{width:min(520px,100%);max-height:90vh;overflow:auto;background:var(--card);border-radius:20px;padding:20px}.modal h3{margin-top:0}.empty{padding:28px;text-align:center;color:var(--muted)}.split{grid-template-columns:1.25fr .75fr}.month-nav{display:flex;align-items:center;gap:8px}.month-title{font-weight:800;min-width:110px;text-align:center}
@media(max-width:800px){.shell{padding:16px}.cards{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}.topbar{align-items:flex-start}.topbar .right{display:flex;gap:6px}.brand p{display:none}}
@media(max-width:480px){.cards{grid-template-columns:1fr 1fr}.metric .value{font-size:21px}.card{padding:15px}.row{flex-direction:column}.topbar{gap:10px}.brand h1{font-size:18px}.btn{padding:10px 12px}}

/* v2 calendar + 5-minute time controls */
.head-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.btn.compact{padding:8px 11px;border-radius:10px}.meta{font-size:12px;color:var(--muted)}.hint{font-size:12px;color:var(--muted);margin:-2px 0 10px}.item-actions{display:flex;gap:8px;flex-wrap:wrap}.time-select{display:grid;grid-template-columns:1fr 1fr;gap:8px}.time-select select{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff}
.calendar{padding:0;overflow:hidden}.calendar-weekdays{display:grid;grid-template-columns:repeat(7,1fr);border-bottom:1px solid var(--line);background:#faf7f1}.calendar-weekdays>div{text-align:center;padding:10px 4px;font-size:12px;font-weight:700;color:var(--muted)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr)}.calendar-day{appearance:none;border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--card);min-height:118px;padding:8px;text-align:left;cursor:pointer;color:var(--text);overflow:hidden}.calendar-day:nth-child(7n){border-right:0}.calendar-day:hover{background:#fbf8f2}.calendar-day.empty-day{cursor:default;background:#f7f3ec}.calendar-day.today .day-number{background:var(--accent);color:#fff}.calendar-day.selected{box-shadow:inset 0 0 0 2px var(--accent);background:#fffaf1}.day-number{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800;margin-bottom:5px}.calendar-events{display:grid;gap:4px}.cal-event{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;border-radius:7px;padding:4px 5px;font-size:10px;font-weight:700}.schedule-event{background:#ece6dc}.log-event.approved{background:var(--ok)}.log-event.pending{background:var(--warn)}.more-events{font-size:10px;color:var(--muted);padding-left:4px}.day-detail{margin-top:14px}
@media(max-width:700px){.calendar-head{align-items:flex-start;flex-direction:column}.head-actions{width:100%;justify-content:space-between}.calendar-day{min-height:88px;padding:5px}.day-number{width:24px;height:24px;font-size:12px}.cal-event{font-size:9px;padding:3px 4px}.calendar-weekdays>div{padding:8px 2px}.day-detail .section-head{align-items:flex-start;flex-direction:column}.day-detail .section-head .btn{width:100%}.item{align-items:flex-start}.item-actions{justify-content:flex-end}}
@media(max-width:480px){.calendar-day{min-height:76px}.cal-event{padding:2px 3px;font-size:8px}.calendar-events{gap:3px}.month-title{min-width:96px}.time-select{grid-template-columns:1fr 1fr}}

/* v3 staff account management */
.password-row{display:flex;gap:8px;align-items:center}.password-row input{flex:1}.credential-box{display:grid;gap:9px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#fff;margin:12px 0}.credential-box>div{display:flex;justify-content:space-between;gap:14px;align-items:center}.credential-box span{font-size:12px;color:var(--muted)}.credential-box b{font-size:14px;word-break:break-all}.btn:disabled{opacity:.55;cursor:not-allowed}
@media(max-width:520px){.password-row{align-items:stretch;flex-direction:column}.credential-box>div{align-items:flex-start;flex-direction:column;gap:2px}}

/* v4 approval revision + account deletion */
.inactive-item{opacity:.68;background:#f5f2ec}.inactive-item .title{color:var(--muted)}