:root{
  --bg: #0d1015;
  --panel: #161b23;
  --panel-alt: #131720;
  --border: #262d3a;
  --border-soft: #1d2330;
  --text: #e7eaf0;
  --text-dim: #8892a0;
  --text-faint: #5b6472;

  --accent: #56b6e0;
  --red: #e5484d;
  --red-dim: rgba(229,72,77,0.12);
  --amber: #f2a93b;
  --green: #34d399;

  --radius: 8px;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', monospace;
}

*{ box-sizing:border-box; }
html,body{ height:100%; margin:0; padding:0; }
body{
  background:var(--bg); color:var(--text);
  font-family:var(--font-sans);
  -webkit-font-smoothing:antialiased;
  display:flex; flex-direction:column;
  font-size:13px;
}
@media (min-width:901px){ body{ height:100vh; overflow:hidden; } }

.mono{ font-family:var(--font-mono); }

/* ---------- Header (identical sizing to the CAD's header) ---------- */
header.topbar{
  display:flex; align-items:center; justify-content:space-between;
  flex:0 0 auto;
  padding: 14px 24px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg, #12161d, #0f1218);
}
.brand{ display:flex; align-items:center; gap:12px; }
.header-logo{ height:34px; display:block; }
.topbar-title{
  font-family:var(--font-sans); font-weight:600; font-size:17px;
  letter-spacing:.02em; color:var(--text); line-height:1.2;
}
.topbar-sub{
  color:var(--text-faint); font-family:var(--font-mono); font-size:11px;
  letter-spacing:.08em; text-transform:uppercase; margin-top:1px;
}
.header-right{ display:flex; align-items:center; gap:20px; }
.clock{
  font-family:var(--font-mono); font-size:20px; font-weight:500;
  letter-spacing:.03em; color:var(--text); font-variant-numeric:tabular-nums;
  text-align:right;
}
.clock-date{
  color:var(--text-faint); font-size:11px; text-align:right;
  letter-spacing:.06em; text-transform:uppercase; margin-top:2px;
}

/* ---------- Main sheet-style stacked layout ---------- */
.board{
  flex:1 1 auto; display:flex; flex-direction:column; gap:14px;
  padding:14px; overflow-y:auto; min-height:0;
}
.board::-webkit-scrollbar{ width:8px; }
.board::-webkit-scrollbar-thumb{ background:var(--border); border-radius:4px; }

.main-grid{
  display:grid; grid-template-columns: 1fr 1.1fr 1.8fr; gap:14px; align-items:start;
}
.emer-col, .mid-col{ display:flex; flex-direction:column; gap:14px; }
@media (max-width:1100px){ .main-grid{ grid-template-columns:1fr; } }

.panel{
  background:var(--panel); border:1px solid var(--border-soft); border-radius:var(--radius);
  padding:12px 14px;
}
.panel textarea{ min-height:220px; }

.panel-wide{ display:flex; flex-direction:column; }
.section-banner{
  font-family:var(--font-mono); font-size:11.5px; font-weight:700;
  text-transform:uppercase; letter-spacing:.06em;
  padding:9px 12px; border-radius:var(--radius) var(--radius) 0 0;
  background:var(--panel-alt); border:1px solid var(--border-soft); border-bottom:none;
  color:var(--text-dim); display:flex; align-items:center; gap:8px;
}
.section-banner.alert{ background:var(--red); border-color:var(--red); color:#fff; }
.section-banner.info{ background:var(--accent); border-color:var(--accent); color:#08131a; }
.proto-table-wrap{
  border:1px solid var(--border-soft); border-top:none; border-radius:0 0 var(--radius) var(--radius);
  overflow:hidden; overflow-x:auto;
}
.proto-table{ width:100%; border-collapse:collapse; font-size:12px; background:var(--panel); }
.proto-table thead th{
  background:var(--panel-alt); color:var(--text-faint);
  font-family:var(--font-mono); font-size:9.5px; text-transform:uppercase; letter-spacing:.05em;
  text-align:left; padding:7px 9px; border-bottom:1px solid var(--border-soft);
}
.proto-table td{ border-top:1px solid var(--border-soft); padding:6px 9px; vertical-align:top; }
.proto-table td.step-cell{
  font-family:var(--font-mono); font-size:10px; color:var(--text-faint);
  text-align:center; width:44px; white-space:nowrap;
}
.proto-table td.q-cell{ font-style:italic; font-size:12px; min-width:220px; }
.proto-table td.comment-cell, .proto-table td.instr-cell{ font-size:11px; color:var(--text-dim); min-width:160px; }
.proto-table select, .proto-table input[type="text"]{ font-size:11.5px; padding:4px 6px; min-width:140px; }
.panel h2{
  font-family:var(--font-mono); font-size:10.5px; font-weight:600;
  text-transform:uppercase; letter-spacing:.08em; color:var(--text-dim);
  margin:0 0 9px; display:flex; align-items:center; gap:6px;
}
.panel h2 .n{ color:var(--accent); }
.panel h2 .tag{ margin-left:auto; font-size:9.5px; color:var(--text-faint); text-transform:none; letter-spacing:0; }

/* ---------- Fields ---------- */
.field{ margin-bottom:8px; }
.field label{ display:block; font-size:10.5px; color:var(--text-faint); margin-bottom:3px; }
.row2{ display:grid; grid-template-columns:1fr 1fr; gap:8px; }
input[type="text"], select, textarea{
  width:100%; background:var(--panel-alt); border:1px solid var(--border);
  border-radius:6px; color:var(--text); font-family:var(--font-sans);
  font-size:12px; padding:6px 8px; outline:none;
}
input[type="text"]:focus, select:focus, textarea:focus{ border-color:var(--accent); }
textarea{ resize:vertical; min-height:160px; font-family:var(--font-mono); font-size:11.5px; line-height:1.5; }
select{ cursor:pointer; }

/* ---------- Buttons ---------- */
.btn-row{ display:flex; gap:6px; margin-top:8px; flex-wrap:wrap; }
button.btn{
  font-family:var(--font-sans); font-size:11.5px; font-weight:500;
  padding:6px 10px; border-radius:6px; border:1px solid var(--border);
  background:var(--panel-alt); color:var(--text); cursor:pointer;
  transition:background .15s,border-color .15s;
}
button.btn:hover{ background:var(--panel); border-color:var(--text-faint); }
button.btn-primary{ background:var(--accent); border-color:var(--accent); color:#08131a; font-weight:600; }
button.btn-primary:hover{ filter:brightness(1.08); }
button.btn-danger{ color:var(--red); }
button.btn-danger:hover{ background:var(--red-dim); border-color:var(--red); }

/* ---------- Banners ---------- */
.banner{
  font-family:var(--font-mono); font-size:11px; font-weight:600;
  padding:7px 10px; border-radius:6px; margin-bottom:8px;
  border:1px solid var(--border-soft); background:var(--panel-alt); color:var(--text-dim);
}
.banner.alert{ background:var(--red-dim); border-color:var(--red); color:#ffb3b6; }
.banner.info{ background:rgba(86,182,224,0.1); border-color:var(--accent); color:var(--accent); }

.comment{ font-size:10.5px; color:var(--text-faint); margin-top:5px; font-style:italic; line-height:1.4; }
.prearrival{
  font-size:10.5px; color:var(--amber); margin-top:5px;
  border-left:2px solid var(--amber); padding-left:6px; line-height:1.4;
}
.instr-item{
  border:1px solid var(--border-soft); border-radius:6px;
  padding:8px 9px; margin-bottom:6px; background:var(--panel-alt);
  font-size:12px; line-height:1.4;
}
.instr-item .step{ display:block; font-family:var(--font-mono); font-size:9px; color:var(--accent); margin-bottom:3px; text-transform:uppercase; letter-spacing:.06em; }

.empty{ font-size:11.5px; color:var(--text-faint); margin:0; padding:6px 2px; }

/* ---------- History table ---------- */
table.history{ width:100%; border-collapse:collapse; font-size:11px; }
table.history th{
  text-align:left; font-family:var(--font-mono); font-size:9px; color:var(--text-faint);
  text-transform:uppercase; letter-spacing:.06em; padding:4px 6px; border-bottom:1px solid var(--border-soft);
}
table.history td{ padding:5px 6px; border-bottom:1px solid var(--border-soft); color:var(--text-dim); }
table.history tr:last-child td{ border-bottom:none; }

/* ---------- Page tab selector (bottom-left, above footer) ---------- */
.page-tabs{
  flex:0 0 auto; display:flex; align-items:stretch; justify-content:flex-start;
  background:linear-gradient(0deg, #12161d, #0f1218);
  border-top:1px solid var(--border);
  padding:0 24px;
}
.page-tab{
  display:flex; align-items:center; gap:7px;
  padding:9px 16px;
  font-family:var(--font-sans); font-size:12px; font-weight:500;
  color:var(--text-dim); text-decoration:none; white-space:nowrap;
  border-right:1px solid var(--border-soft);
  border-bottom:2px solid transparent;
  margin-bottom:-1px;
  transition:color .15s ease, background .15s ease, border-color .15s ease;
}
.page-tab:last-child{ border-right:none; }
.page-tab svg{ width:13px; height:13px; flex:0 0 auto; opacity:.8; }
.page-tab:hover{ color:var(--text); background:rgba(255,255,255,0.03); }
.page-tab.active{
  color:var(--accent); border-bottom-color:var(--accent);
  background:rgba(86,182,224,0.07);
}
.page-tab.active svg{ opacity:1; }

footer.foot{
  text-align:center; font-size:9.5px; color:var(--text-faint);
  padding:8px; border-top:1px solid var(--border-soft); flex:0 0 auto;
}

/* ---------- Call History page ---------- */
.history-page{
  flex:1 1 auto; overflow-y:auto; padding:18px 24px; min-height:0;
}
.history-toolbar{
  display:flex; align-items:center; gap:10px; margin-bottom:14px; flex-wrap:wrap;
}
.history-toolbar input[type="text"]{ max-width:280px; }
.history-count{
  font-family:var(--font-mono); font-size:10.5px; color:var(--text-faint);
  margin-left:auto; letter-spacing:.04em;
}
.record-card{
  border:1px solid var(--border-soft); border-radius:8px;
  background:var(--panel); margin-bottom:10px; overflow:hidden;
}
.record-head{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  padding:9px 12px; border-bottom:1px solid var(--border-soft);
  background:var(--panel-alt); cursor:pointer;
}
.record-head .rtime{ font-family:var(--font-mono); font-size:11px; color:var(--text-dim); }
.record-head .rcomplaint{ font-size:12px; font-weight:600; color:var(--text); }
.record-head .roverride{
  font-family:var(--font-mono); font-size:9.5px; text-transform:uppercase; letter-spacing:.05em;
  padding:2px 7px; border-radius:20px; border:1px solid var(--border-soft); color:var(--text-faint);
}
.record-head .roverride.alert{ color:#ffb3b6; border-color:var(--red); background:var(--red-dim); }
.record-head .rtoggle{ margin-left:auto; color:var(--text-faint); font-size:11px; }
.record-body{ padding:12px; display:none; }
.record-card.open .record-body{ display:block; }
.record-card.open .rtoggle{ color:var(--accent); }
.record-grid{
  display:grid; grid-template-columns:repeat(auto-fill, minmax(160px,1fr));
  gap:8px; margin-bottom:10px;
}
.record-field{
  border:1px solid var(--border-soft); border-radius:6px; padding:6px 8px; background:var(--panel-alt);
}
.record-field .rlabel{
  font-family:var(--font-mono); font-size:9px; color:var(--text-faint);
  text-transform:uppercase; letter-spacing:.06em; margin-bottom:2px;
}
.record-field .rvalue{ font-size:12px; color:var(--text); }
.record-narrative{
  font-family:var(--font-mono); font-size:11.5px; line-height:1.5; color:var(--text-dim);
  background:var(--panel-alt); border:1px solid var(--border-soft); border-radius:6px;
  padding:9px 10px; white-space:pre-wrap; margin-bottom:10px;
}
.record-actions{ display:flex; gap:6px; }
.btn-xs{ padding:4px 8px; font-size:10.5px; }

/* ---------- Footer / session manager (shared auth server with UM) ---------- */
footer.foot{
  position: relative;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; padding: 18px;
  font-family: var(--font-mono); letter-spacing: 0.04em;
  color: var(--text-faint);
}
.session-manager{
  position: absolute; left: 18px;
  display: flex; align-items: center;
}
.session-trigger{
  display: flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid var(--border); border-radius: 20px;
  padding: 4px 12px 4px 4px; color: var(--text);
  font-family: var(--font-sans); font-size: 12.5px; font-weight: 500;
}
.session-trigger:hover{ border-color: var(--text-faint); background: var(--panel-alt); }
.session-avatar{ width: 26px; height: 26px; border-radius: 50%; object-fit: cover; display: block; }
.session-avatar-sm{ width: 20px; height: 20px; }
.session-dropup{
  position: absolute; bottom: 100%; left: 0; margin-bottom: 8px;
  background: var(--panel-alt); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  min-width: 200px; padding: 6px;
  display: none; flex-direction: column; gap: 2px; z-index: 1000;
}
.session-online-label{
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-faint); padding: 8px 10px 4px;
}
.session-online-list{ display: flex; flex-direction: column; gap: 4px; max-height: 220px; overflow-y: auto; }
.session-online-item{ display: flex; align-items: center; gap: 8px; padding: 6px 10px; font-size: 12.5px; color: var(--text-dim); }
.session-online-name{ flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-app-badge{
  flex-shrink: 0;
  font-size: 9.5px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 2px 6px; border-radius: 4px;
  background: rgba(86,182,224,0.15); color: var(--accent); border: 1px solid rgba(86,182,224,0.3);
}
.session-kick-btn{
  flex-shrink: 0; background: none; border: 1px solid var(--border); color: var(--text-faint);
  font-size: 10.5px; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase;
  padding: 3px 7px; border-radius: 4px;
  transition: background .15s, color .15s, border-color .15s;
}
.session-kick-btn:hover{ color: var(--red); border-color: var(--red); background: var(--red-dim); }
.session-online-empty{ padding: 6px 10px; font-size: 12px; color: var(--text-faint); }
.context-menu-item{
  display: block; width: 100%; text-align: left; background: none; border: none;
  color: var(--text-dim); font-family: var(--font-sans); font-size: 12.5px;
  padding: 7px 10px; border-radius: 6px; text-decoration: none;
}
.context-menu-item:hover{ background: var(--panel); color: var(--text); }
.context-menu-item.danger{ color: var(--red); }
.context-menu-item.danger:hover{ background: var(--red-dim); }
.session-debug-panel{
  display: none; flex-direction: column; gap: 4px;
  padding: 6px 10px 10px; margin-bottom: 4px; border-bottom: 1px solid var(--border);
}
.session-debug-label{ font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.session-debug-input{
  background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 8px; font-size: 12.5px; color: var(--text); font-family: inherit;
}