:root{
  --bg:#f4f6f8;--surface:#fff;--text:#17202a;--muted:#6d7782;--line:#e4e8ec;
  --accent:#17202a;--accent-soft:#edf1f4;--success:#287a55;--success-bg:#e9f6ef;
  --warning:#9a6810;--warning-bg:#fff5dc;--danger:#a73c3c;--danger-bg:#fdeeee;
  --shadow:0 12px 35px rgba(23,32,42,.07);--radius:16px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
button,input,select{font:inherit}
button{cursor:pointer}
.app{display:flex;min-height:100vh}
.sidebar{width:260px;background:#111820;color:#fff;display:flex;flex-direction:column;padding:24px 16px;position:fixed;inset:0 auto 0 0;z-index:20}
.brand{display:flex;gap:12px;align-items:center;padding:4px 8px 28px}
.brand-mark{width:42px;height:42px;border-radius:12px;background:#fff;color:#111820;display:grid;place-items:center;font-weight:800}
.brand strong{display:block;font-size:15px}.brand span{display:block;color:#9ca7b2;font-size:11px;margin-top:3px}
.nav{display:grid;gap:6px}.nav-item{border:0;background:transparent;color:#aeb7c0;text-align:left;padding:12px 13px;border-radius:10px;display:flex;gap:11px;align-items:center;font-weight:600}
.nav-item span{width:20px;text-align:center;font-size:13px}.nav-item:hover,.nav-item.active{background:#202b35;color:#fff}
.sidebar-footer{margin-top:auto;border-top:1px solid #29333d;padding:18px 8px 0}.access-label{font-size:9px;letter-spacing:1.5px;color:#788490;margin-bottom:10px}
.user-mini{display:flex;align-items:center;gap:10px}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#2c3945;font-size:11px;font-weight:800}
.user-mini strong{font-size:12px;display:block}.user-mini span{font-size:10px;color:#8e9aa6;display:block;margin-top:2px}
.main{margin-left:260px;min-width:0;width:calc(100% - 260px)}
.topbar{height:88px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 38px;position:sticky;top:0;z-index:10}
.eyebrow,.panel-kicker{font-size:9px;letter-spacing:1.5px;color:#7c8792;font-weight:800;margin:0 0 5px}.topbar h1{font-size:21px;margin:0}
.content{padding:32px 38px 60px;max-width:1500px;margin:auto}
.section{display:none}.section.active{display:block}
.welcome{background:#18232d;color:#fff;border-radius:20px;padding:28px 30px;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow);margin-bottom:22px}
.tag{font-size:9px;letter-spacing:1.5px;color:#aeb8c2;font-weight:800}.welcome h2{font-size:25px;margin:7px 0 5px}.welcome p{margin:0;color:#b5c0ca;font-size:13px}
.date-box{text-align:right;border-left:1px solid #35414b;padding-left:28px}.date-box span{display:block;font-size:9px;letter-spacing:1.5px;color:#9aa6b0}.date-box strong{display:block;font-size:18px;margin-top:5px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.cards.compact{grid-template-columns:repeat(3,1fr)}
.stat-card,.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.stat-card{padding:20px}.stat-label{font-size:11px;color:var(--muted);font-weight:700;display:block}.stat-card strong{display:block;font-size:28px;margin:7px 0 4px}.stat-card small{color:#8a949e;font-size:10px}.stat-card.warning{border-color:#f0dfb2}
.grid-two{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
.panel{padding:21px}.panel-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px}.panel-header h3,.panel h3{margin:3px 0 0;font-size:16px}.text-button{background:none;border:0;color:#4f5d68;font-weight:700;font-size:11px}
.box-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.box-card{border:1px solid var(--line);border-radius:13px;padding:16px;background:#fafbfc}.box-card .box-name{font-size:20px;font-weight:800}.box-card small{display:block;color:var(--muted);margin-top:5px;font-size:10px}.box-status{display:inline-flex;margin-top:12px;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:800}.available{background:var(--success-bg);color:var(--success)}.occupied{background:var(--danger-bg);color:var(--danger)}.reserved{background:var(--warning-bg);color:var(--warning)}
.activity-list{display:grid;gap:1px}.activity{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.activity:last-child{border-bottom:0}.activity strong{font-size:12px;display:block}.activity span{font-size:10px;color:var(--muted)}.activity-right{text-align:right}
.notice{display:flex;gap:13px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:18px}.notice-icon{width:24px;height:24px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;font-weight:800;font-size:11px;flex:none}.notice strong{font-size:12px}.notice p{margin:4px 0 0;color:var(--muted);font-size:11px;line-height:1.5}
.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:22px}.section-heading h2{margin:2px 0 5px;font-size:25px}.section-heading p{margin:0;color:var(--muted);font-size:12px}
.primary-button,.secondary-button{border:0;border-radius:10px;padding:11px 15px;font-weight:800;font-size:11px}.primary-button{background:#17202a;color:#fff}.primary-button:hover{background:#263441}.secondary-button{background:#edf1f4;color:#25313b}
.toolbar{display:flex;gap:10px;margin-bottom:15px}.toolbar input,.toolbar select{background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 12px;outline:none;color:var(--text);font-size:11px}.toolbar input{flex:1}.table-panel{padding:0;overflow:hidden}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:700px}th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);font-size:11px}th{font-size:9px;text-transform:uppercase;letter-spacing:1px;color:#7c8792;background:#fafbfc}tbody tr:last-child td{border-bottom:0}.badge{display:inline-flex;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:800;white-space:nowrap}.badge.success{background:var(--success-bg);color:var(--success)}.badge.warning{background:var(--warning-bg);color:var(--warning)}.badge.danger{background:var(--danger-bg);color:var(--danger)}.badge.neutral{background:#edf1f4;color:#5e6a75}
.box-large-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.box-large{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}.box-large h3{font-size:30px;margin:0}.box-large p{color:var(--muted);font-size:11px}.box-large .state{margin-top:22px;padding:11px;border-radius:10px;font-size:10px;font-weight:800}
.audit-list{display:grid}.audit-item{display:grid;grid-template-columns:150px 1fr auto;gap:15px;padding:15px 0;border-bottom:1px solid var(--line);font-size:11px}.audit-item:last-child{border:0}.audit-item time{color:var(--muted)}
.empty{text-align:center;color:#8a949e;font-size:11px;padding:28px 10px}
.modal-backdrop{display:none;position:fixed;inset:0;background:rgba(9,14,19,.58);z-index:50;padding:20px;align-items:center;justify-content:center}.modal-backdrop.open{display:flex}.modal{background:#fff;border-radius:18px;width:min(700px,100%);max-height:90vh;overflow:auto;box-shadow:0 25px 80px rgba(0,0,0,.2);padding:25px}.modal-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:22px}.modal h2{margin:2px 0 0;font-size:22px}.close-button{border:0;background:#edf1f4;border-radius:50%;width:32px;height:32px;font-size:20px;color:#55616b}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid label{font-size:10px;font-weight:800;color:#59646e}.form-grid input,.form-grid select{width:100%;margin-top:6px;border:1px solid var(--line);border-radius:9px;padding:11px;background:#fff;outline:none;font-size:11px}.form-note{margin-top:15px;background:#f6f8f9;border-radius:10px;padding:12px;color:#69747e;font-size:10px;line-height:1.5}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}
.mobile-menu{display:none;border:0;background:#edf1f4;border-radius:9px;padding:9px 11px}
@media(max-width:1050px){.cards{grid-template-columns:repeat(2,1fr)}.grid-two{grid-template-columns:1fr}.box-large-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.main{margin-left:0;width:100%}.topbar{padding:0 18px;gap:12px}.mobile-menu{display:block}.topbar .primary-button{padding:9px 11px}.content{padding:20px 16px 40px}.welcome{padding:21px;align-items:flex-start}.date-box{display:none}.cards,.cards.compact{grid-template-columns:1fr 1fr}.box-grid,.box-large-grid{grid-template-columns:1fr 1fr}.section-heading{align-items:flex-start;flex-direction:column}.form-grid{grid-template-columns:1fr}.audit-item{grid-template-columns:1fr}}
@media(max-width:430px){.cards,.box-grid,.box-large-grid{grid-template-columns:1fr}.welcome h2{font-size:21px}.topbar h1{font-size:18px}}