:root{
  --paper:#EEF1EC; --paper-alt:#E5E8E0; --card:#FFFFFF;
  --ink:#172420; --ink-soft:#57635C; --ink-faint:#8A948D;
  --brass:#AB7F2C; --brass-light:#D8B45C; --brass-pale:#F3E9D2;
  --forest:#2E6B57; --forest-pale:#E1EDE8;
  --rust:#B8503A; --rust-pale:#F5E3DE;
  --panel:#132019; --panel-alt:#1B2B23; --plate:#E9E2CC;
  --border:#D8DBD1;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
}
*{box-sizing:border-box;}
body{margin:0;font-family:var(--font-body);background:var(--paper);color:var(--ink);}
a{color:inherit;text-decoration:none;}
h1,h2,h3{font-family:var(--font-display);margin:0;}
table{width:100%;border-collapse:collapse;}
input,select,textarea,button{font-family:var(--font-body);font-size:14px;}

/* ---------- layout ---------- */
.app{display:flex;min-height:100vh;}
.sidebar{width:232px;background:var(--panel);flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;}
.sidebar-top{padding:20px 18px 14px;border-bottom:1px solid #ffffff14;}
.brand{display:flex;align-items:center;gap:9px;}
.brand-mark{width:30px;height:30px;border-radius:7px;background:var(--brass);display:flex;align-items:center;justify-content:center;font-size:15px;}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:16px;color:var(--plate);}
.brand-building{font-size:11.5px;color:#8FA097;margin-top:8px;letter-spacing:.3px;}
.nav{flex:1;overflow-y:auto;padding:10px 0;}
.nav-item{display:flex;align-items:center;gap:11px;padding:11px 18px;border-left:3px solid transparent;color:#B7C0BA;font-size:13.5px;font-weight:500;}
.nav-item:hover{background:#ffffff0d;}
.nav-item.active{background:var(--panel-alt);border-left-color:var(--brass);color:var(--plate);font-weight:600;}
.nav-num{font-family:var(--font-mono);font-size:11px;color:#657167;width:16px;}
.nav-item.active .nav-num{color:var(--brass-light);}
.nav-label{flex:1;}
.nav-badge{background:#ffffff22;color:#D8DED9;font-size:10.5px;font-weight:700;border-radius:999px;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;padding:0 5px;}
.nav-item.active .nav-badge{background:var(--brass);color:#fff;}
.sidebar-bottom{padding:14px;border-top:1px solid #ffffff14;}

.main{flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 22px;border-bottom:1px solid var(--border);background:var(--paper);position:sticky;top:0;z-index:10;}
.topbar-title{font-size:20px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:10px;}
.menu-btn{display:none;background:none;border:none;font-size:20px;cursor:pointer;}
.user-chip{display:flex;align-items:center;gap:8px;background:var(--brass-pale);color:var(--brass);padding:6px 12px;border-radius:999px;font-size:12.5px;font-weight:700;white-space:nowrap;}
.user-chip .dot{width:7px;height:7px;border-radius:999px;background:var(--forest);}
.building-switch select{border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-weight:600;font-size:13px;background:#fff;}
.content{padding:22px;flex:1;}

/* ---------- guest (login/register) ---------- */
.guest-wrap{min-height:100vh;background:var(--panel);display:flex;align-items:center;justify-content:center;padding:20px;}
.guest-box{width:100%;max-width:440px;}
.guest-logo{text-align:center;margin-bottom:24px;}
.guest-logo .mark{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:10px;background:var(--brass);font-size:24px;margin-bottom:12px;}
.guest-logo .title{font-family:var(--font-display);font-weight:700;font-size:25px;color:var(--plate);}
.guest-logo .sub{font-size:13.5px;color:#9BA79E;margin-top:4px;}
.guest-panel{background:var(--panel-alt);border:1px solid #ffffff14;border-radius:12px;padding:22px;}
.guest-panel label{display:block;font-size:12.5px;font-weight:600;color:#9BA79E;margin:0 0 6px;}
.guest-panel input,.guest-panel select{width:100%;background:#ffffff0d;border:1px solid #ffffff22;border-radius:7px;padding:10px 12px;color:var(--plate);margin-bottom:12px;}
.guest-panel .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.guest-link{color:#9BA79E;font-size:12.5px;text-align:center;display:block;margin-top:14px;}
.guest-link a{color:var(--brass-light);font-weight:600;}
.role-card{display:flex;align-items:center;gap:14px;text-align:left;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:10px;padding:16px;width:100%;cursor:pointer;color:var(--plate);margin-bottom:12px;}
.role-card:hover{background:#ffffff1a;}
.role-card .icon{width:40px;height:40px;border-radius:8px;background:#AB7F2C33;display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0;}
.role-card .t{font-weight:700;font-size:15px;}
.role-card .d{font-size:12.5px;color:#9BA79E;margin-top:2px;}

/* ---------- components ---------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;}
.section-title{font-family:var(--font-display);font-weight:600;font-size:15.5px;color:var(--ink);margin-bottom:10px;}
.grid{display:flex;gap:14px;flex-wrap:wrap;}
.kpi{flex:1 1 180px;min-width:170px;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px;}
.kpi .top{display:flex;align-items:center;justify-content:space-between;}
.kpi .label{font-size:12.5px;font-weight:600;color:var(--ink-soft);letter-spacing:.3px;}
.kpi .icon{width:26px;height:26px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;}
.kpi .value{font-family:var(--font-mono);font-size:26px;font-weight:600;margin-top:10px;}

.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;font-weight:600;font-size:13.5px;padding:9px 16px;border-radius:6px;cursor:pointer;border:1px solid transparent;background:var(--brass);color:#fff;}
.btn-ghost{background:transparent;color:var(--ink-soft);border:1px solid var(--border);}
.btn-ghost-dark{background:transparent;color:#B7C0BA;border:1px solid #ffffff22;}
.btn-subtle{background:var(--paper-alt);color:var(--ink);}
.btn-danger{background:var(--rust-pale);color:var(--rust);border:1px solid #B8503A33;}
.btn-sm{padding:5px 10px;font-size:12px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px;white-space:nowrap;}
.badge-slate{background:var(--paper-alt);color:var(--ink-soft);}
.badge-forest{background:var(--forest-pale);color:var(--forest);}
.badge-rust{background:var(--rust-pale);color:var(--rust);}
.badge-brass{background:var(--brass-pale);color:var(--brass);}

.field{display:flex;flex-direction:column;gap:6px;font-size:13px;margin-bottom:12px;}
.field label{color:var(--ink-soft);font-weight:600;letter-spacing:.2px;}
.field input,.field select,.field textarea{border:1px solid var(--border);border-radius:6px;padding:9px 11px;font-size:14px;background:#fff;color:var(--ink);width:100%;}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px;}
.form-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 14px;}

table.list th{background:var(--paper-alt);text-align:left;padding:10px 14px;font-size:11.5px;color:var(--ink-soft);font-weight:700;letter-spacing:.3px;}
table.list td{padding:10px 14px;border-top:1px solid var(--border);font-size:13.5px;}
.table-wrap{overflow-x:auto;}
.mono{font-family:var(--font-mono);}

.empty{border:1px dashed var(--border);border-radius:10px;padding:42px 24px;text-align:center;color:var(--ink-soft);background:#E5E8E080;}
.empty .ico{font-size:26px;margin-bottom:8px;}
.empty .t{font-family:var(--font-display);font-weight:600;color:var(--ink);font-size:16px;}
.empty .s{font-size:13.5px;margin-top:4px;max-width:380px;margin-inline:auto;}

.flash{border-radius:8px;padding:11px 14px;font-size:13.5px;font-weight:600;margin-bottom:16px;}
.flash-ok{background:var(--forest-pale);color:var(--forest);}
.flash-error{background:var(--rust-pale);color:var(--rust);}

.filters{display:flex;gap:6px;flex-wrap:wrap;}
.filters a{border:1px solid var(--border);background:#fff;color:var(--ink-soft);border-radius:999px;padding:6px 12px;font-size:12.5px;font-weight:600;}
.filters a.active{border-color:var(--brass);background:var(--brass-pale);color:var(--brass);}

.ticket-actions{display:flex;gap:6px;margin-top:12px;}
.ticket-actions button{font-size:12px;font-weight:600;border-radius:6px;padding:5px 10px;cursor:pointer;border:1px solid var(--border);background:#fff;color:var(--ink);}
.ticket-actions button.current{background:var(--paper-alt);color:var(--ink-faint);cursor:default;}

.doc-row summary{cursor:pointer;display:flex;justify-content:space-between;gap:10px;list-style:none;}
.doc-row summary::-webkit-details-marker{display:none;}
.doc-content{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);font-size:13.5px;color:var(--ink-soft);line-height:1.6;white-space:pre-wrap;}

.progress{height:10px;background:var(--paper-alt);border-radius:999px;margin-top:12px;overflow:hidden;}
.progress > div{height:100%;background:var(--forest);border-radius:999px;}

.spacer-v > * + *{margin-top:10px;}
.spacer-v-16 > * + *{margin-top:16px;}

input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:2px solid var(--brass);outline-offset:1px;}

@media (max-width:860px){
  .sidebar{position:fixed;left:-260px;top:0;z-index:40;transition:left .2s ease;box-shadow:0 0 0 100vmax rgba(0,0,0,0);}
  .sidebar.open{left:0;box-shadow:0 0 0 100vmax rgba(0,0,0,.4);}
  .menu-btn{display:inline-block;}
  .form-grid-2,.form-grid-3{grid-template-columns:1fr;}
  .guest-panel .row2{grid-template-columns:1fr;}
}