@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --ink:#1c1917;--muted:#78716c;--faint:#a8a29e;--line:#e7e5e4;--line-soft:#f0efed;
  --surface:#fff;--canvas:#f4f4f3;--sidebar:#fafaf9;--sidebar-line:#eeeceb;
  --accent:#d97706;--accent-soft:#fef3c7;--accent-strong:#b45309;--accent-ink:#78350f;
  --good:#16a34a;--good-soft:#dcfce7;--warn:#d97706;--warn-soft:#fef3c7;--bad:#dc2626;--bad-soft:#fee2e2;
  --radius:16px;--radius-lg:20px;--shadow:0 1px 2px #1c19170a,0 8px 24px #1c191708;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#f4f4f3;--muted:#a8a29e;--faint:#78716c;--line:#2a2826;--line-soft:#242220;
    --surface:#1c1a18;--canvas:#121110;--sidebar:#181614;--sidebar-line:#2a2826;
    --accent:#f59e0b;--accent-soft:#3a2a0f;--accent-strong:#fbbf24;--accent-ink:#fde68a;
    --good:#22c55e;--good-soft:#14291b;--warn:#f59e0b;--warn-soft:#3a2a0f;--bad:#f87171;--bad-soft:#3a1616;
    --shadow:0 1px 2px #0000004d,0 8px 24px #00000033;
  }
}
html[data-theme="dark"]{
  --ink:#f4f4f3;--muted:#a8a29e;--faint:#78716c;--line:#2a2826;--line-soft:#242220;
  --surface:#1c1a18;--canvas:#121110;--sidebar:#181614;--sidebar-line:#2a2826;
  --accent:#f59e0b;--accent-soft:#3a2a0f;--accent-strong:#fbbf24;--accent-ink:#fde68a;
  --good:#22c55e;--good-soft:#14291b;--warn:#f59e0b;--warn-soft:#3a2a0f;--bad:#f87171;--bad-soft:#3a1616;
  --shadow:0 1px 2px #0000004d,0 8px 24px #00000033;
}

*{box-sizing:border-box}
body{margin:0;font-family:'Inter',sans-serif;color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
.hidden{display:none!important}
.eyebrow{font-size:11px;letter-spacing:.12em;font-weight:700;color:var(--faint);margin:0 0 8px;text-transform:uppercase}
.muted{color:var(--muted)}
svg{display:block}
.icon{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}

/* ---------- login ---------- */
.login-page{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr;background:var(--canvas)}
.login-side{display:flex;flex-direction:column;justify-content:space-between;padding:48px;background:linear-gradient(160deg,#1c1917 0%,#292420 55%,#3a2a12 100%);color:#fff}
.login-brand{display:flex;gap:12px;align-items:center}
.login-brand span{display:block;font-size:11px;color:#c9a97a;margin-top:2px}
.login-side h1{font-size:38px;line-height:1.15;letter-spacing:-1px;max-width:420px;margin:0}
.login-side .tag{font-size:13px;color:#d6cfc4;max-width:380px}
.login-side .stats{display:flex;gap:28px;margin-top:10px}
.login-side .stats strong{display:block;font-size:22px}
.login-side .stats span{font-size:11px;color:#c9a97a}
.login-main{display:flex;align-items:center;justify-content:center;padding:34px}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(150deg,#f59e0b,#b45309);color:#fff;font-weight:800;box-shadow:0 8px 20px #f59e0b40;font-size:16px}
.login-card{width:min(400px,100%);padding:38px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.login-card h2{font-size:24px;letter-spacing:-.5px;margin:16px 0 4px}
.login-card label{display:block;font-size:13px;font-weight:600;margin:18px 0}
.login-card input{display:block;width:100%;margin-top:7px;border:1px solid var(--line);border-radius:11px;padding:12px 13px;background:var(--surface);color:var(--ink);outline:0}
.login-card input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.primary{border:0;background:var(--accent);color:#fff;padding:12px 16px;border-radius:11px;font-weight:700;cursor:pointer;font-size:13.5px;display:inline-flex;align-items:center;gap:8px;justify-content:center}
.primary:hover{background:var(--accent-strong)}
.full{width:100%}
.form-error{color:var(--bad);min-height:20px;font-size:12.5px;margin:4px 0 0}
.super-link{display:block;text-align:center;color:var(--muted);font-size:12px;margin-top:20px;text-decoration:none}
.super-link:hover{color:var(--accent)}

/* ---------- shell ---------- */
.app-shell{display:grid;grid-template-columns:252px 1fr;gap:18px;min-height:100vh;padding:18px}
.sidebar{position:sticky;top:18px;height:calc(100vh - 36px);background:var(--sidebar);border:1px solid var(--sidebar-line);border-radius:var(--radius-lg);padding:18px 14px;display:flex;flex-direction:column}
.brand{display:flex;gap:11px;align-items:center;padding:4px 8px 20px}
.brand strong{font-size:14.5px}
.brand span{display:block;font-size:11px;color:var(--muted);margin-top:1px}
.sidebar nav{display:grid;gap:3px}
.nav-label{font-size:10.5px;font-weight:700;letter-spacing:.1em;color:var(--faint);text-transform:uppercase;padding:14px 12px 6px}
.sidebar button,.sidebar a{display:flex;align-items:center;gap:12px;width:100%;border:0;padding:10px 12px;border-radius:10px;color:var(--muted);background:transparent;text-decoration:none;cursor:pointer;text-align:left;font-size:13.5px;font-weight:500}
.sidebar nav button:hover,.sidebar-bottom a:hover,.sidebar-bottom button:hover{color:var(--ink);background:var(--line-soft)}
.sidebar nav button.active{color:var(--accent-ink);background:var(--accent-soft);font-weight:700}
.sidebar nav button.active .icon{stroke:var(--accent)}
.sidebar-bottom{margin-top:auto;padding-top:10px;border-top:1px solid var(--sidebar-line)}
.user-chip{display:flex;gap:10px;align-items:center;margin:10px 8px 0;padding-top:12px}
.user-chip>div:first-child{width:32px;height:32px;border-radius:50%;background:var(--accent-soft);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:13px}
.user-chip strong,.user-chip span{display:block;font-size:12px}
.user-chip span{color:var(--muted);margin-top:1px}
.theme-toggle{display:flex;align-items:center;justify-content:space-between}

main{min-width:0}
header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 4px 14px}
header h2{font-size:21px;margin:0;letter-spacing:-.4px}
.header-actions{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}
.icon-button,.secondary,.danger{border:1px solid var(--line);background:var(--surface);padding:9px 12px;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:12.5px;color:var(--ink)}
.icon-button:hover,.secondary:hover{border-color:var(--accent);color:var(--accent)}
.danger{color:var(--bad);border-color:var(--bad-soft)}
.danger:hover{background:var(--bad-soft)}
.content{padding-bottom:40px}

.hero{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px;gap:16px;flex-wrap:wrap}
.hero h1{font-size:26px;margin:0 0 6px;letter-spacing:-.6px}
.hero p{margin:0;color:var(--muted);font-size:13.5px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{padding:19px}
.stat-head{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.stat-icon{width:32px;height:32px;border-radius:10px;background:var(--accent-soft);color:var(--accent-ink);display:grid;place-items:center}
.stat strong{font-size:27px;display:block;margin:13px 0 3px;letter-spacing:-.5px}
.stat small{color:var(--muted);font-size:12px}
.grid-two{display:grid;grid-template-columns:1.6fr 1fr;gap:16px;margin-top:16px}
.panel{padding:20px}
.panel-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
.panel-title h3{font-size:14.5px;margin:0}
.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.quick{border:1px solid var(--line);background:var(--surface);padding:14px;border-radius:12px;text-align:left;cursor:pointer;display:flex;gap:10px;align-items:flex-start}
.quick:hover{border-color:var(--accent);background:var(--accent-soft)}
.quick strong,.quick span{display:block}
.quick span{font-size:11.5px;color:var(--muted);margin-top:3px}

.toolbar{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.toolbar-left{display:flex;gap:10px;flex:1;min-width:220px}
.search{min-width:260px;flex:1;max-width:360px;border:1px solid var(--line);border-radius:10px;padding:10px 13px;background:var(--surface);color:var(--ink)}
.select{border:1px solid var(--line);border-radius:10px;padding:10px 13px;background:var(--surface);color:var(--ink)}
.table-card{overflow:auto}
.data-table{width:100%;border-collapse:collapse}
.data-table th{background:var(--line-soft);color:var(--muted);text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;padding:11px 15px;white-space:nowrap}
.data-table td{padding:13px 15px;border-top:1px solid var(--line-soft);font-size:13px;vertical-align:middle}
.data-table tbody tr{cursor:pointer}
.data-table tbody tr:hover{background:var(--line-soft)}
.device-name{font-weight:600;display:block}
.sub{display:block;font-size:11px;color:var(--muted);margin-top:2px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border-radius:30px;font-size:11px;font-weight:600;background:var(--line-soft);color:var(--muted)}
.badge.online{color:var(--good);background:var(--good-soft)}
.badge.offline{color:var(--muted)}
.badge.accent{color:var(--accent-ink);background:var(--accent-soft)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.row-actions{display:flex;gap:6px}
.empty{padding:48px 20px;text-align:center;color:var(--muted);font-size:13px}
.loading{padding:64px;text-align:center;color:var(--muted)}

.app-grid,.profile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.app-card,.profile-card{padding:18px;cursor:default}
.profile-card{cursor:pointer}
.profile-card:hover{border-color:var(--accent)}
.app-icon{width:38px;height:38px;border-radius:11px;background:var(--line-soft);display:grid;place-items:center;font-weight:800;color:var(--muted);margin-bottom:14px}
.app-card h3,.profile-card h3{font-size:14.5px;margin:0 0 5px}
.app-card p,.profile-card p{font-size:12px;color:var(--muted);margin:0}
.profile-meta{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap}
.enroll-layout{display:grid;grid-template-columns:1fr 380px;gap:16px}
.enroll-list{padding:7px}
.enroll-item{padding:15px;border-radius:12px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.enroll-item:hover,.enroll-item.active{background:var(--accent-soft)}
.qr-card{padding:24px;text-align:center}
.qr-card img{width:260px;max-width:100%;border:9px solid var(--surface);box-shadow:0 5px 20px #1c191722;border-radius:12px}

/* messaging */
.messaging-layout{display:grid;grid-template-columns:340px 1fr;gap:16px;align-items:start}
.compose-card{padding:18px;display:grid;gap:13px}
.field{display:grid;gap:6px}
.field label{font-size:12px;font-weight:600}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.command-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;max-height:220px;overflow:auto;padding-right:2px}
.command-chip{border:1px solid var(--line);padding:9px 10px;border-radius:9px;cursor:pointer;font-size:12px;text-align:left;background:var(--surface)}
.command-chip:hover{border-color:var(--accent)}
.command-chip.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
.msg-list{display:grid;gap:8px}
.msg-row{display:flex;justify-content:space-between;align-items:center;padding:13px 16px;border:1px solid var(--line-soft);border-radius:12px}
.msg-row .type{font-weight:600;font-size:13px}
.msg-row .meta{font-size:11.5px;color:var(--muted);margin-top:2px}

/* location */
.location-layout{display:grid;grid-template-columns:300px 1fr;gap:16px;align-items:start}
.device-pin-list{max-height:640px;overflow:auto;padding:8px}
.pin-item{padding:12px;border-radius:11px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:8px}
.pin-item:hover,.pin-item.active{background:var(--accent-soft)}
.pin-item .sub{margin-top:1px}
#map{height:640px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.map-pin{width:26px;height:26px;border-radius:50% 50% 50% 0;background:var(--accent);transform:rotate(-45deg);border:2px solid #fff;box-shadow:0 2px 8px #0004}
.map-pin.stale{background:var(--faint)}

/* device drawer / dialogs */
.overlay{position:fixed;inset:0;background:#1c19174d;backdrop-filter:blur(2px);display:flex;justify-content:flex-end;z-index:30}
.overlay.center{justify-content:center;align-items:center;padding:20px}
.drawer{width:min(460px,100%);height:100%;background:var(--surface);box-shadow:-10px 0 30px #1c191722;overflow-y:auto;padding:26px}
.dialog{width:min(560px,100%);max-height:88vh;overflow-y:auto;background:var(--surface);border-radius:var(--radius-lg);box-shadow:0 20px 60px #1c191740;padding:26px}
.dialog-head,.drawer-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px}
.dialog-head h3,.drawer-head h3{margin:0;font-size:17px}
.close-x{border:0;background:var(--line-soft);width:30px;height:30px;border-radius:9px;cursor:pointer;display:grid;place-items:center;color:var(--muted)}
.close-x:hover{color:var(--ink)}
.form-grid{display:grid;gap:14px}
.toggle-section{border:1px solid var(--line-soft);border-radius:12px;padding:12px 14px;margin-top:4px}
.toggle-section>.eyebrow{margin-bottom:10px}
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line-soft)}
.toggle-row:first-of-type{border-top:0}
.toggle-row span{font-size:12.5px;font-weight:500}
.switch{position:relative;width:38px;height:22px;flex-shrink:0}
.switch input{opacity:0;width:100%;height:100%;margin:0;position:absolute;cursor:pointer;z-index:1}
.switch .track{position:absolute;inset:0;background:var(--line);border-radius:20px;transition:.15s}
.switch .thumb{position:absolute;top:2px;left:2px;width:18px;height:18px;background:#fff;border-radius:50%;transition:.15s;box-shadow:0 1px 3px #0003}
.switch input:checked+.track{background:var(--accent)}
.switch input:checked+.track+.thumb{transform:translateX(16px)}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.device-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.info-tile{padding:11px 13px;border:1px solid var(--line-soft);border-radius:11px}
.info-tile .eyebrow{margin-bottom:4px;font-size:10px}
.info-tile strong{font-size:13px}
.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px}

.toast{position:fixed;right:22px;top:20px;z-index:60;background:var(--ink);color:var(--canvas);padding:11px 16px;border-radius:11px;box-shadow:0 15px 35px #0003;opacity:0;transform:translateY(-10px);pointer-events:none;transition:.2s;font-size:13px}
.toast.show{opacity:1;transform:none}

@media(max-width:1100px){.stat-grid{grid-template-columns:repeat(2,1fr)}.app-grid,.profile-grid{grid-template-columns:repeat(2,1fr)}.enroll-layout,.messaging-layout,.location-layout{grid-template-columns:1fr}.grid-two{grid-template-columns:1fr}#map{height:420px}.device-pin-list{max-height:220px}}
@media(max-width:760px){.app-shell{grid-template-columns:1fr;padding:10px;gap:10px}.sidebar{position:relative;top:0;height:auto}.login-page{grid-template-columns:1fr}.login-side{display:none}.stat-grid,.app-grid,.profile-grid,.field-row,.device-info-grid,.action-grid,.command-grid{grid-template-columns:1fr}.toolbar{display:grid}.search{max-width:none}.drawer{width:100%}}