:root{
  --ink:#0B1220;
  --true-blue:#0073CF;
  --true-blue-dark:#005CA6;
  --deep-blue:#00366B;
  --deep-blue-2:#00284F;
  --mid-blue:#2E86D6;
  --sky:#DCEBFA;
  --paper:#F5F8FC;
  --card:#FFFFFF;
  --amber:#F5A623;
  --emerald:#18A870;
  --rose:#E0524B;
  --line:#E5EAF2;
  --line-soft:#EEF2F8;
  --text-1:#0B1220;
  --text-2:#4B5A70;
  --text-3:#8695AA;
  --radius:14px;
  --radius-sm:9px;
  --shadow-1:0 1px 2px rgba(11,18,32,.04), 0 1px 1px rgba(11,18,32,.03);
  --shadow-2:0 10px 30px -12px rgba(0,54,107,.18);
  --font-display:'Space Grotesk', 'Segoe UI Semibold', system-ui, sans-serif;
  --font-body:'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
  --sidebar-w: 268px;
  --sidebar-w-collapsed: 84px;
  --topbar-h: 68px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--text-1);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}
button{font-family:inherit;}
a{color:inherit;text-decoration:none;}
::selection{background:var(--sky);}

/* ---------- keyboard accessibility ---------- */
button, input, [tabindex]{outline:none;}
button:focus-visible, input:focus-visible, .nav-item:focus-visible, .icon-btn:focus-visible, .chart-tab:focus-visible{
  outline:2px solid var(--true-blue);
  outline-offset:2px;
  border-radius:8px;
}
.ring-node:focus-visible circle.node-bg{ stroke-width:3.5; }

/* ---------- scrollbar (subtle) ---------- */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:#CFDBEA;border-radius:20px;border:2px solid var(--paper);}
::-webkit-scrollbar-track{background:transparent;}

/* ================= LAYOUT ================= */
.app{
  display:flex;
  min-height:100vh;
  width:100%;
}

/* ---------- SIDEBAR ---------- */
.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:linear-gradient(185deg, var(--deep-blue) 0%, var(--deep-blue-2) 100%);
  color:#EAF2FB;
  position:fixed;
  top:0; left:0; bottom:0;
  z-index:40;
  display:flex;
  flex-direction:column;
  transition:transform .28s cubic-bezier(.4,0,.2,1), width .28s cubic-bezier(.4,0,.2,1);
}
.sidebar.collapsed{ width:var(--sidebar-w-collapsed); }

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:22px 20px;
  border-bottom:1px solid rgba(255,255,255,.08);
  min-height:26px;
}
.brand-mark{
  width:38px;height:38px;border-radius:50%;
  background:radial-gradient(circle at 32% 28%, var(--mid-blue), var(--true-blue) 55%, var(--true-blue-dark) 100%);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:13px;color:#fff;
  flex-shrink:0;
  box-shadow:0 0 0 3px rgba(255,255,255,.08);
}
.brand-text{overflow:hidden;white-space:nowrap;}
.brand-text .name{font-family:var(--font-display);font-weight:600;font-size:16.5px;letter-spacing:.2px;color:#fff;}
.brand-text .sub{font-size:11px;color:#9FBBDD;letter-spacing:.4px;text-transform:uppercase;margin-top:1px;}
.sidebar.collapsed .brand-text{display:none;}

.nav-scroll{flex:1;overflow-y:auto;padding:14px 12px 18px;}
.nav-group{margin-bottom:6px;}
.nav-group-label{
  font-size:10.5px;font-weight:600;letter-spacing:1.1px;text-transform:uppercase;
  color:#7C9BC4;padding:16px 12px 6px;
}
.sidebar.collapsed .nav-group-label{ display:none; }

.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;
  border-radius:10px;
  color:#C9DBF2;
  cursor:pointer;
  font-size:14px;font-weight:500;
  margin-bottom:2px;
  position:relative;
  border:none;
  background:transparent;
  width:100%;
  text-align:left;
  transition:background .15s ease, color .15s ease;
  white-space:nowrap;
}
.nav-item svg{flex-shrink:0;width:19px;height:19px;stroke:currentColor;opacity:.85;}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{background:linear-gradient(90deg, rgba(0,115,207,.35), rgba(0,115,207,.12));color:#fff;}
.nav-item.active svg{opacity:1;stroke:#7FC1FF;}
.nav-item.active::before{
  content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:var(--mid-blue);
}
.nav-item .count{
  margin-left:auto;font-family:var(--font-mono);font-size:10.5px;color:#7C9BC4;
  background:rgba(255,255,255,.06);padding:2px 7px;border-radius:20px;
}
.sidebar.collapsed .nav-item .label, .sidebar.collapsed .nav-item .count{display:none;}
.sidebar.collapsed .nav-item{justify-content:center;}
.sidebar.collapsed .nav-item.active::before{left:-12px;}

.sidebar-foot{
  padding:16px 18px 20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:10px;
}
.collapse-btn{
  display:flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);color:#BFD6F0;cursor:pointer;flex-shrink:0;
}
.collapse-btn:hover{background:rgba(255,255,255,.1);}
.collapse-btn svg{width:16px;height:16px;transition:transform .25s ease;}
.sidebar.collapsed .collapse-btn svg{transform:rotate(180deg);}
.sidebar-foot .foot-text{font-size:11.5px;color:#7C9BC4;line-height:1.4;overflow:hidden;white-space:nowrap;}
.sidebar.collapsed .sidebar-foot .foot-text{display:none;}

.sidebar-scrim{
  position:fixed;inset:0;background:rgba(4,12,26,.55);z-index:35;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.sidebar-scrim.show{opacity:1;pointer-events:auto;}

/* ---------- MAIN ---------- */
.main{
  flex:1;
  min-width:0;
  margin-left:var(--sidebar-w);
  transition:margin-left .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.main.collapsed{margin-left:var(--sidebar-w-collapsed);}

.topbar{
  height:var(--topbar-h);
  position:sticky;top:0;z-index:20;
  background:rgba(245,248,252,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:16px;
  padding:0 24px;
}
.hamburger{
  display:none;
  width:38px;height:38px;border-radius:9px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
}
.hamburger svg{width:19px;height:19px;stroke:var(--deep-blue);}
.page-heading{display:flex;flex-direction:column;gap:1px;min-width:0;}
.page-heading .eyebrow{font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--text-3);font-weight:600;}
.page-heading h1{font-family:var(--font-display);font-size:19px;margin:0;font-weight:600;color:var(--text-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.topbar-search{
  flex:1;max-width:380px;display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 13px;
  color:var(--text-3);margin-left:8px;
}
.topbar-search svg{width:16px;height:16px;stroke:var(--text-3);flex-shrink:0;}
.topbar-search input{border:none;outline:none;font-size:13.5px;width:100%;background:transparent;color:var(--text-1);font-family:var(--font-body);}
.topbar-search input::placeholder{color:var(--text-3);}
.topbar-search kbd{font-family:var(--font-mono);font-size:10.5px;color:var(--text-3);background:var(--paper);border:1px solid var(--line);border-radius:5px;padding:2px 5px;}

.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0;}
.demo-pill{
  font-family:var(--font-mono);font-size:10.5px;font-weight:600;letter-spacing:.4px;
  color:var(--true-blue-dark);background:var(--sky);border:1px solid #C7E0F7;
  padding:5px 10px;border-radius:20px;white-space:nowrap;
}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;flex-shrink:0;
}
.icon-btn svg{width:18px;height:18px;stroke:var(--text-2);}
.icon-btn .dot{position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:50%;background:var(--amber);border:1.5px solid #fff;}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg, var(--mid-blue), var(--deep-blue));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px;font-family:var(--font-display);
  border:2px solid #fff;box-shadow:0 0 0 1px var(--line);
}

.content{padding:26px 28px 60px;max-width:1400px;width:100%;margin:0 auto;}

/* ================ COMPONENTS ================= */
.section-title{font-family:var(--font-display);font-size:15.5px;font-weight:600;color:var(--text-1);margin:0 0 2px;}
.section-sub{font-size:12.5px;color:var(--text-3);margin:0 0 16px;}

.grid{display:grid;gap:16px;}
.g-kpi{grid-template-columns:repeat(4, 1fr);}
.g-2-1{grid-template-columns:2fr 1fr;}
.g-1-1{grid-template-columns:1fr 1fr;}
@media (max-width: 1180px){ .g-kpi{grid-template-columns:repeat(2,1fr);} .g-2-1{grid-template-columns:1fr;} .g-1-1{grid-template-columns:1fr;} }
@media (max-width: 560px){ .g-kpi{grid-template-columns:1fr;} }

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);
}
.card-pad{padding:20px 22px;}

/* Hero */
.hero{
  border-radius:18px;
  background:linear-gradient(120deg, var(--deep-blue) 0%, var(--true-blue-dark) 62%, var(--true-blue) 100%);
  color:#fff;position:relative;overflow:hidden;
  padding:30px 30px 26px;
  margin-bottom:20px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:20px;align-items:center;
}
.hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,255,255,.10), transparent 70%);
}
.hero-left .eyebrow{
  font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#9FD1FF;
  display:flex;align-items:center;gap:8px;margin-bottom:12px;
}
.hero-left .eyebrow .live-dot{width:7px;height:7px;border-radius:50%;background:#57E6A1;box-shadow:0 0 0 3px rgba(87,230,161,.25);}
.hero-metric{font-family:var(--font-display);font-weight:700;font-size:clamp(34px,4.4vw,52px);line-height:1;letter-spacing:-.5px;}
.hero-metric .unit{font-size:.42em;font-weight:600;color:#BFE0FF;margin-left:6px;}
.hero-label{font-size:13.5px;color:#CFE6FF;margin-top:8px;}
.hero-delta{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  background:rgba(87,230,161,.15);border:1px solid rgba(87,230,161,.35);color:#8CF3C4;
  padding:6px 12px;border-radius:20px;font-size:12.5px;font-weight:600;
}
.hero-delta svg{width:13px;height:13px;}
.hero-sparkline{margin-top:18px;}
.hero-right{position:relative;z-index:2;}
.hero-stat-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.hero-stat{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:12px;
  padding:14px 16px;backdrop-filter:blur(2px);
}
.hero-stat .v{font-family:var(--font-mono);font-weight:600;font-size:20px;}
.hero-stat .l{font-size:11.5px;color:#CFE6FF;margin-top:3px;}
@media (max-width: 940px){ .hero{grid-template-columns:1fr;} }

/* KPI cards */
.kpi{padding:18px 20px;display:flex;flex-direction:column;gap:10px;}
.kpi-top{display:flex;align-items:flex-start;justify-content:space-between;}
.kpi-icon{
  width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.kpi-icon svg{width:18px;height:18px;}
.kpi-label{font-size:12.5px;color:var(--text-3);font-weight:500;}
.kpi-value{font-family:var(--font-mono);font-size:25px;font-weight:600;color:var(--text-1);letter-spacing:-.3px;}
.kpi-delta{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;width:fit-content;padding:2px 0;}
.kpi-delta.up{color:var(--emerald);}
.kpi-delta.down{color:var(--rose);}
.kpi-delta svg{width:12px;height:12px;}

/* Chart card */
.chart-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:6px;}
.legend{display:flex;gap:16px;flex-wrap:wrap;}
.legend-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-2);}
.legend-dot{width:8px;height:8px;border-radius:2px;}
.chart-tabs{display:flex;gap:4px;background:var(--paper);padding:3px;border-radius:9px;border:1px solid var(--line);}
.chart-tab{border:none;background:transparent;padding:6px 12px;border-radius:7px;font-size:12px;font-weight:600;color:var(--text-3);cursor:pointer;}
.chart-tab.active{background:#fff;color:var(--true-blue-dark);box-shadow:var(--shadow-1);}

/* Table */
table{width:100%;border-collapse:collapse;font-size:13px;}
thead th{
  text-align:left;font-size:11px;letter-spacing:.4px;text-transform:uppercase;color:var(--text-3);
  font-weight:600;padding:0 14px 10px;border-bottom:1px solid var(--line);
}
tbody td{padding:12px 14px;border-bottom:1px solid var(--line-soft);color:var(--text-1);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr{transition:background .12s ease;}
tbody tr:hover{background:var(--paper);}
.table-scroll{overflow-x:auto;}
.cell-main{font-weight:600;}
.cell-sub{font-size:11.5px;color:var(--text-3);}
.mono{font-family:var(--font-mono);}

.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;white-space:nowrap;
}
.badge.green{background:#E4F7EF;color:var(--emerald);}
.badge.amber{background:#FDF1DD;color:#B5780C;}
.badge.blue{background:var(--sky);color:var(--true-blue-dark);}
.badge.rose{background:#FCE9E8;color:var(--rose);}
.badge.grey{background:#EEF1F5;color:var(--text-2);}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;}

.avatar-sm{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:11px;font-family:var(--font-display);
}
.row-flex{display:flex;align-items:center;gap:10px;}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:10px;font-size:13px;font-weight:600;
  cursor:pointer;border:1px solid transparent;font-family:var(--font-body);
}
.btn svg{width:15px;height:15px;}
.btn-primary{background:var(--true-blue);color:#fff;box-shadow:0 6px 16px -6px rgba(0,115,207,.55);}
.btn-primary:hover{background:var(--true-blue-dark);}
.btn-ghost{background:#fff;color:var(--text-2);border-color:var(--line);}
.btn-ghost:hover{background:var(--paper);}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:8px;}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:10px;}

/* Module ring (signature element) */
.ring-wrap{position:relative;display:flex;align-items:center;justify-content:center;}
.ring-tooltip{
  position:absolute;pointer-events:none;background:var(--deep-blue-2);color:#fff;padding:8px 12px;border-radius:9px;
  font-size:12px;line-height:1.35;opacity:0;transition:opacity .12s ease;transform:translate(-50%,-115%);white-space:nowrap;z-index:5;
  box-shadow:var(--shadow-2);
}
.ring-tooltip .t1{font-weight:600;font-family:var(--font-display);font-size:12.5px;}
.ring-tooltip .t2{color:#BFE0FF;font-size:10.5px;margin-top:2px;}
.ring-node{cursor:pointer;}
.ring-node circle.node-bg{transition:r .15s ease, filter .15s ease;}
.ring-node:hover circle.node-bg{filter:brightness(1.12);}

/* Progress bar */
.bar-track{height:7px;border-radius:20px;background:var(--line-soft);overflow:hidden;}
.bar-fill{height:100%;border-radius:20px;background:linear-gradient(90deg, var(--mid-blue), var(--true-blue));}

/* ---------- Settings page ---------- */
.settings-layout{display:grid;grid-template-columns:220px 1fr;gap:18px;align-items:start;}
@media (max-width: 860px){ .settings-layout{grid-template-columns:1fr;} }
.settings-nav{display:flex;flex-direction:column;gap:3px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:10px;position:sticky;top:calc(var(--topbar-h) + 18px);}
@media (max-width: 860px){ .settings-nav{position:static;flex-direction:row;overflow-x:auto;gap:6px;} }
.settings-nav-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;border:none;background:transparent;
  font-size:13px;font-weight:500;color:var(--text-2);cursor:pointer;text-align:left;white-space:nowrap;
}
.settings-nav-item svg{width:17px;height:17px;stroke:currentColor;flex-shrink:0;opacity:.8;}
.settings-nav-item:hover{background:var(--paper);}
.settings-nav-item.active{background:var(--sky);color:var(--true-blue-dark);}
.settings-nav-item.active svg{opacity:1;}

.settings-panel{display:none;}
.settings-panel.active{display:block;}
.settings-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:22px 24px;margin-bottom:16px;}
.settings-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px;}
.settings-card-head h3{font-family:var(--font-display);font-size:15px;font-weight:600;margin:0 0 3px;color:var(--text-1);}
.settings-card-head p{font-size:12.5px;color:var(--text-3);margin:0;}

.field-row{display:grid;grid-template-columns:1fr 1.15fr;gap:20px;padding:15px 0;border-bottom:1px solid var(--line-soft);align-items:center;}
.field-row:last-child{border-bottom:none;padding-bottom:0;}
@media (max-width: 640px){ .field-row{grid-template-columns:1fr;gap:8px;} }
.field-label{font-size:13px;font-weight:600;color:var(--text-1);}
.field-desc{font-size:11.5px;color:var(--text-3);margin-top:2px;line-height:1.4;}
.field-control{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.field-input{
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-2);background:var(--paper);
  border:1px solid var(--line);border-radius:8px;padding:8px 11px;flex:1;min-width:0;
}
.field-select{font-size:12.5px;color:var(--text-1);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 11px;font-family:var(--font-body);}

.toggle{position:relative;display:inline-block;width:40px;height:23px;flex-shrink:0;cursor:pointer;}
.toggle input{opacity:0;width:0;height:0;position:absolute;}
.toggle-track{position:absolute;inset:0;background:#D7DFEA;border-radius:20px;transition:background .18s ease;}
.toggle-thumb{position:absolute;top:2.5px;left:3px;width:18px;height:18px;background:#fff;border-radius:50%;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .18s ease;}
.toggle input:checked + .toggle-track{background:var(--true-blue);}
.toggle input:checked + .toggle-track .toggle-thumb{transform:translateX(17px);}
.toggle input:focus-visible + .toggle-track{outline:2px solid var(--true-blue);outline-offset:2px;}

.conn-status{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:600;}
.conn-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;}
.conn-status.on{color:var(--emerald);} .conn-status.on .conn-dot{background:var(--emerald);}
.conn-status.off{color:var(--text-3);} .conn-status.off .conn-dot{background:var(--text-3);}

/* Media grid */
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;}
.media-tile{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;cursor:pointer;transition:box-shadow .15s ease, transform .15s ease;}
.media-tile:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.media-thumb{height:96px;display:flex;align-items:center;justify-content:center;position:relative;}
.media-thumb svg{width:26px;height:26px;stroke:#fff;opacity:.9;}
.media-thumb .media-badge{position:absolute;top:7px;right:7px;font-size:9.5px;font-weight:700;background:rgba(0,0,0,.35);color:#fff;padding:2px 6px;border-radius:6px;letter-spacing:.3px;}
.media-info{padding:9px 11px;}
.media-info .mname{font-size:12px;font-weight:600;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.media-info .mmeta{font-size:10.5px;color:var(--text-3);margin-top:2px;}

/* Footer */
.footer{
  margin-top:32px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--text-3);font-size:12px;
}
.footer .fbrand{display:flex;align-items:center;gap:8px;color:var(--text-2);font-weight:600;}
.footer .fmark{width:20px;height:20px;border-radius:50%;background:var(--true-blue);}

.stub-card{padding:15px 0;}
.mini-icon{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.mini-icon svg{width:17px;height:17px;}

.pagefade{animation:fadeIn .28s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:translateY(0);}}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px){
  .sidebar{transform:translateX(-100%);width:280px;box-shadow:0 0 40px rgba(0,0,0,.25);}
  .sidebar.mobile-open{transform:translateX(0);}
  .sidebar.collapsed{width:280px;}
  .main, .main.collapsed{margin-left:0;}
  .hamburger{display:flex;}
  .collapse-btn{display:none;}
  .topbar-search{display:none;}
  .content{padding:20px 16px 48px;}
  .hero{padding:24px 20px;border-radius:16px;}
}
@media (max-width: 620px){
  .topbar{padding:0 14px;gap:10px;}
  .demo-pill{display:none;}
  .page-heading h1{font-size:16.5px;}
  .card-pad{padding:16px;}
  .hero-stat-row{grid-template-columns:1fr 1fr;}
}

/* ================= APP ADDITIONS (not in mockup) ================= */
.flash{border-radius:12px;padding:12px 16px;font-size:13px;margin-bottom:18px;border:1px solid transparent;display:flex;gap:10px;align-items:flex-start;}
.flash.ok{background:#E4F7EF;color:#0E7A50;border-color:#BFEAD6;}
.flash.err{background:#FCE9E8;color:#B23A35;border-color:#F5C6C3;}
.flash.info{background:var(--sky);color:var(--true-blue-dark);border-color:#C7E0F7;}
.flash ul{margin:4px 0 0;padding-left:18px;}
.empty{padding:30px 14px;text-align:center;color:var(--text-3);font-size:13px;}
.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 22px 16px;font-size:12px;color:var(--text-3);flex-wrap:wrap;}
.pager .links{display:flex;gap:4px;}
.pager a,.pager span.pg{padding:5px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text-2);font-weight:600;font-size:12px;}
.pager span.pg.cur{background:var(--sky);color:var(--true-blue-dark);border-color:#C7E0F7;}
.filter-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
.filter-bar input,.filter-bar select{font-family:var(--font-body);font-size:12.5px;color:var(--text-1);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:7px 10px;}
.row-actions{display:flex;gap:6px;flex-wrap:wrap;}
.btn-danger{background:#fff;color:var(--rose);border-color:#F5C6C3;}
.btn-danger:hover{background:#FCE9E8;}
.btn-success{background:var(--emerald);color:#fff;box-shadow:0 6px 16px -6px rgba(24,168,112,.55);}
.btn-success:hover{background:#0E7A50;}
.btn:disabled{opacity:.55;cursor:not-allowed;}
tr.clickable{cursor:pointer;}
/* modal */
.modal-scrim{position:fixed;inset:0;background:rgba(4,12,26,.55);z-index:60;display:none;align-items:center;justify-content:center;padding:20px;}
.modal-scrim.show{display:flex;}
.modal{background:#fff;border-radius:16px;box-shadow:var(--shadow-2);width:100%;max-width:640px;max-height:92vh;overflow:auto;animation:fadeIn .2s ease;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line);}
.modal-head h3{font-family:var(--font-display);font-size:16px;margin:0;font-weight:600;}
.modal-body{padding:6px 22px 10px;}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;padding:14px 22px 18px;border-top:1px solid var(--line);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;padding:14px 0;}
.form-grid .full{grid-column:1 / -1;}
@media (max-width:560px){ .form-grid{grid-template-columns:1fr;} }
.f label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:5px;}
.f input,.f select,.f textarea{width:100%;font-family:var(--font-body);font-size:13px;color:var(--text-1);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:9px 11px;}
.f textarea{min-height:90px;resize:vertical;}
.f .hint{font-size:11px;color:var(--text-3);margin-top:4px;}
.field-input.editable{color:var(--text-1);background:#fff;}
.field-input:focus,.field-select:focus,.f input:focus,.f select:focus,.f textarea:focus{outline:2px solid var(--true-blue);outline-offset:1px;}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:12.5px;}
.kv dt{color:var(--text-3);font-weight:500;} .kv dd{margin:0;color:var(--text-1);font-family:var(--font-mono);font-size:12px;word-break:break-all;}
.sync-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px;}
@media (max-width:860px){ .sync-panel{grid-template-columns:1fr 1fr;} }
.sync-stat{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 14px;}
.sync-stat .l{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.4px;font-weight:600;}
.sync-stat .v{font-family:var(--font-mono);font-size:18px;font-weight:600;margin-top:4px;}
.conflict{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px;background:#fff;}
.conflict pre{background:var(--paper);border-radius:8px;padding:8px 10px;font-size:11px;overflow:auto;max-height:180px;margin:6px 0 0;font-family:var(--font-mono);}
.dropdown{position:absolute;right:0;top:46px;width:340px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-2);display:none;z-index:30;overflow:hidden;}
.dropdown.show{display:block;}
.dropdown .dd-item{padding:11px 14px;border-bottom:1px solid var(--line-soft);font-size:12.5px;}
.dropdown .dd-item .t{font-weight:600;color:var(--text-1);} .dropdown .dd-item .s{color:var(--text-3);font-size:11.5px;margin-top:2px;}
.dropdown .dd-foot{padding:10px 14px;text-align:center;font-size:12px;font-weight:600;color:var(--true-blue-dark);}
.user-menu{position:relative;}
.stars{color:var(--amber);letter-spacing:1px;}
.live-pill{font-family:var(--font-mono);font-size:10.5px;font-weight:600;letter-spacing:.4px;color:var(--emerald);background:#E4F7EF;border:1px solid #BFEAD6;padding:5px 10px;border-radius:20px;white-space:nowrap;}
.live-pill.fallback{color:#B5780C;background:#FDF1DD;border-color:#F5D9A6;}
.qr{background:#fff;padding:12px;border:1px solid var(--line);border-radius:12px;display:inline-block;}
.code-box{font-family:var(--font-mono);font-size:13px;background:var(--paper);border:1px dashed var(--line);border-radius:8px;padding:10px 12px;letter-spacing:1px;word-break:break-all;}
/* login */
.login-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;}
@media (max-width:860px){ .login-wrap{grid-template-columns:1fr;} .login-side{display:none;} }
.login-side{background:linear-gradient(160deg, var(--deep-blue) 0%, var(--deep-blue-2) 100%);color:#EAF2FB;padding:48px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;}
.login-side::after{content:"";position:absolute;right:-120px;bottom:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle, rgba(255,255,255,.10), transparent 70%);}
.login-side h2{font-family:var(--font-display);font-size:30px;line-height:1.15;margin:20px 0 10px;color:#fff;}
.login-side p{color:#BFD6F0;font-size:14px;line-height:1.6;max-width:420px;}
.login-form{display:flex;align-items:center;justify-content:center;padding:40px 24px;background:var(--paper);}
.login-card{width:100%;max-width:400px;}
.login-card h1{font-family:var(--font-display);font-size:22px;margin:0 0 4px;}
.login-card .sub{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.login-card .f{margin-bottom:14px;}