/* ==========================================================================================
   Sentinel design system v2 (light, restrained)
   One primary (blue-900 navy → blue-700 actions), neutral greys, two semantic colours only:
   green = live/ok, red = down/critical. Orange is reserved for alert priority "high" and toasts.
   Plates keep the real yellow-plate look because operators recognise it instantly.
   ========================================================================================== */
:root{
  --navy:#0f2a5f;--navy-2:#163a80;--blue:#2563eb;--blue-2:#1d4ed8;--blue-soft:#eff4ff;
  --green:#15803d;--green-soft:#e8f7ee;--red:#b91c1c;--red-soft:#fdecec;--amber:#b45309;--amber-soft:#fff4e0;
  --bg:#f5f7fb;--surface:#ffffff;--border:#e6eaf0;--border-2:#d5dbe5;--text:#172033;--text-2:#4b5563;--muted:#6b7280;--soft:#f8fafc;
  --radius:14px;--radius-sm:9px;--shadow:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.06);
  --shadow-lg:0 10px 30px -10px rgba(16,24,40,.25);--ease:cubic-bezier(.2,.8,.2,1);
}
html{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.app-body{background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}
.app-container{max-width:1600px;margin:0 auto;padding:0 1.5rem;width:100%}
.page{padding:1.6rem 1.5rem 3.5rem;flex:1;animation:pageIn .35s var(--ease) both}
@keyframes pageIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
/* ---------- header ---------- */
.app-header{background:linear-gradient(90deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(255,255,255,.06),0 4px 14px -6px rgba(15,42,95,.45)}
.header-row{display:flex;align-items:center;gap:1.25rem;height:3.5rem}
.brand{display:flex;align-items:center;gap:.6rem;color:#fff;text-decoration:none;white-space:nowrap}
.brand-mark{width:1.9rem;height:1.9rem;border-radius:.55rem;background:#fff;color:var(--navy);display:grid;place-items:center;font-weight:800;font-size:.95rem;letter-spacing:-.02em}
.brand-name{display:block;font-weight:700;letter-spacing:.02em;font-size:.95rem;line-height:1.1}
.brand-sub{display:block;font-size:.62rem;color:#b9c7e4;letter-spacing:.03em}
.main-nav{display:flex;align-items:center;gap:.1rem;flex:1}
.nav-link{position:relative;padding:.45rem .7rem;border-radius:.5rem;color:#d6e0f5;font-size:.82rem;font-weight:500;text-decoration:none;background:transparent;border:0;cursor:pointer;white-space:nowrap;transition:color .15s,background .15s}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.active{color:#fff}
.nav-link.active::after{content:"";position:absolute;left:.7rem;right:.7rem;bottom:.2rem;height:2px;border-radius:2px;background:#fff;animation:grow .25s var(--ease)}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.nav-more{position:relative}
.nav-menu{display:none;position:absolute;top:2.4rem;left:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);min-width:12.5rem;padding:.35rem;z-index:60;animation:pop .15s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(-4px) scale(.98)}to{opacity:1;transform:none}}
.nav-more.open .nav-menu{display:block}
.nav-menu a{display:block;padding:.5rem .75rem;border-radius:.4rem;color:var(--text);font-size:.83rem;text-decoration:none}
.nav-menu a:hover{background:var(--soft)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:1rem}
.clock{font-variant-numeric:tabular-nums;font-size:.72rem;color:#b9c7e4}
.user-chip{display:flex;flex-direction:column;line-height:1.1;text-align:right}
.user-name{font-size:.78rem;font-weight:600}.user-role{font-size:.62rem;color:#b9c7e4}
.btn-link{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;font-size:.72rem;padding:.3rem .6rem;border-radius:.45rem;cursor:pointer;transition:background .15s}
.btn-link:hover{background:rgba(255,255,255,.12)}
.app-footer{text-align:center;font-size:.7rem;color:var(--muted);padding:1.2rem;border-top:1px solid var(--border);background:#fff}
#open-alert-badge span{background:var(--red);color:#fff;border-radius:9999px;padding:0 .42rem;font-size:.62rem;margin-left:.3rem;font-weight:700;animation:pop .2s var(--ease)}
/* ---------- typography & layout ---------- */
.page-title{font-size:1.45rem;font-weight:700;color:var(--navy);letter-spacing:-.015em;line-height:1.2}
.page-subtitle{font-size:.85rem;color:var(--muted);margin-top:.2rem;max-width:70ch}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1.25rem;flex-wrap:wrap}
.section-title{font-size:.95rem;font-weight:600;color:var(--navy);margin-bottom:.6rem}
.muted{color:var(--muted)}.small{font-size:.8rem}.tiny{font-size:.7rem}
a.link{color:var(--blue);text-decoration:none;font-weight:500}a.link:hover{text-decoration:underline}
.grid-kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:.9rem;margin-bottom:1.1rem}
/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.2rem;box-shadow:var(--shadow);transition:box-shadow .2s var(--ease),transform .2s var(--ease)}
.card.hover:hover,.card.kpi-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card-title{font-size:.85rem;font-weight:600;color:var(--navy);margin-bottom:.6rem;display:flex;justify-content:space-between;align-items:center;gap:.5rem}
.card-title .muted{font-weight:400}
.kpi-card{display:flex;align-items:flex-start;gap:.9rem}
.kpi-icon{width:2.4rem;height:2.4rem;border-radius:.7rem;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;flex:none}
.kpi-icon.green{background:var(--green-soft);color:var(--green)}.kpi-icon.red{background:var(--red-soft);color:var(--red)}.kpi-icon.amber{background:var(--amber-soft);color:var(--amber)}.kpi-icon.grey{background:#eef2f7;color:var(--text-2)}
.kpi-icon svg{width:1.15rem;height:1.15rem}
.kpi{font-size:1.75rem;font-weight:700;line-height:1.1;color:var(--navy);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.kpi.red{color:var(--red)}.kpi.green{color:var(--green)}.kpi.amber{color:var(--amber)}
.kpi-label{font-size:.66rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:600}
.kpi-sub{font-size:.74rem;color:var(--muted);margin-top:.2rem}
/* stagger children of .stagger */
.stagger>*{animation:pageIn .4s var(--ease) both}
.stagger>*:nth-child(2){animation-delay:.04s}.stagger>*:nth-child(3){animation-delay:.08s}.stagger>*:nth-child(4){animation-delay:.12s}.stagger>*:nth-child(5){animation-delay:.16s}.stagger>*:nth-child(6){animation-delay:.2s}.stagger>*:nth-child(7){animation-delay:.24s}.stagger>*:nth-child(8){animation-delay:.28s}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem .95rem;border-radius:.6rem;background:var(--blue);color:#fff;font-weight:600;font-size:.83rem;border:0;cursor:pointer;text-decoration:none;line-height:1.2;box-shadow:0 1px 2px rgba(37,99,235,.3);transition:background .15s,transform .1s,box-shadow .15s}
.btn:hover{background:var(--blue-2);color:#fff;box-shadow:0 4px 12px -4px rgba(37,99,235,.5)}
.btn:active{transform:translateY(1px)}
.btn-secondary,.btn-ghost{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .85rem;border-radius:.6rem;border:1px solid var(--border-2);background:#fff;color:var(--text);font-size:.8rem;font-weight:500;cursor:pointer;text-decoration:none;line-height:1.2;transition:background .15s,border-color .15s}
.btn-secondary:hover,.btn-ghost:hover{background:var(--soft);border-color:#b9c2d0}
.btn-danger{background:var(--red);box-shadow:none}.btn-danger:hover{background:#991b1b}
.btn-warn{background:var(--amber);box-shadow:none}.btn-warn:hover{background:#92400e}
.btn-sm{padding:.32rem .6rem;font-size:.74rem;border-radius:.5rem}
.btn:focus-visible,.btn-secondary:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:.3rem;padding:.14rem .55rem;border-radius:9999px;font-size:.66rem;font-weight:600;line-height:1.4;white-space:nowrap;border:1px solid transparent}
.badge-live{background:var(--green-soft);color:var(--green);border-color:#bfe8cf}
.badge-down{background:var(--red-soft);color:var(--red);border-color:#f5c2c2}
.badge-unknown,.badge-neutral,.badge-closed{background:#eef2f7;color:var(--text-2);border-color:#dfe5ee}
.badge-maintenance,.badge-warn,.badge-p2,.badge-escalated{background:var(--amber-soft);color:var(--amber);border-color:#f7d9a8}
.badge-p1,.badge-new{background:var(--red-soft);color:var(--red);border-color:#f5c2c2}
.badge-p3{background:#fff8e1;color:#8a6d00;border-color:#f3e3a0}
.badge-p4,.badge-info,.badge-acknowledged{background:var(--blue-soft);color:var(--blue-2);border-color:#c9d9ff}
.badge-ok{background:var(--green-soft);color:var(--green);border-color:#bfe8cf}
.badge-false_positive{background:#f3f4f6;color:var(--muted);border-color:#e5e7eb}
.live-dot{width:.5rem;height:.5rem;border-radius:9999px;background:#22c55e;display:inline-block;box-shadow:0 0 0 0 rgba(34,197,94,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.55)}70%{box-shadow:0 0 0 7px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
/* ---------- tables ---------- */
table.tbl{width:100%;font-size:.82rem;border-collapse:separate;border-spacing:0}
table.tbl th{text-align:left;color:var(--muted);font-weight:600;font-size:.68rem;text-transform:uppercase;letter-spacing:.06em;padding:.6rem .7rem;border-bottom:1px solid var(--border);background:var(--soft);position:sticky;top:0;z-index:1}
table.tbl td{padding:.55rem .7rem;border-bottom:1px solid #eef1f6;vertical-align:middle;transition:background .12s}
table.tbl tbody tr:last-child td{border-bottom:0}
table.tbl tbody tr:hover td{background:#f6f9ff}
.tbl-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;max-height:70vh}
/* ---------- forms ---------- */
input:not([type=checkbox]):not([type=radio]),select,textarea{background:#fff;border:1px solid var(--border-2);border-radius:.55rem;padding:.48rem .65rem;color:var(--text);font-size:.85rem;font-family:inherit;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.14)}
input[type=checkbox]{accent-color:var(--blue);width:.95rem;height:.95rem}
select[multiple]{min-height:8rem}
label{font-size:.72rem;color:var(--muted);display:block;margin-bottom:.22rem;font-weight:500}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.8rem 1rem}
.field-error{color:var(--red);font-size:.74rem;margin-top:.15rem}
fieldset{border:1px solid var(--border);border-radius:var(--radius-sm);padding:.95rem 1.05rem;margin-bottom:1rem;background:#fff}
legend{font-size:.78rem;font-weight:600;color:var(--navy);padding:0 .4rem}
/* ---------- misc ---------- */
.plate{font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;letter-spacing:.09em;background:#fde68a;color:#1a1a1a;padding:.08rem .5rem;border-radius:.28rem;border:1px solid #d99a06;font-size:.82rem;white-space:nowrap;box-shadow:inset 0 -1px 0 rgba(0,0,0,.08)}
.alert{border-radius:.6rem;padding:.65rem .9rem;font-size:.84rem;border:1px solid;animation:pageIn .3s var(--ease)}
.alert-ok{background:var(--green-soft);border-color:#bfe8cf;color:var(--green)}.alert-error{background:var(--red-soft);border-color:#f5c2c2;color:var(--red)}.alert-warn{background:var(--amber-soft);border-color:#f7d9a8;color:var(--amber)}
.leaflet-container{background:#e9eef5;font-family:inherit}
#map{height:calc(100vh - 9rem);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}
.mini-map{height:16rem;border-radius:var(--radius-sm);border:1px solid var(--border)}
.alert-row-new td{animation:flash 1.4s ease-in-out 3}
@keyframes flash{0%,100%{background:transparent}50%{background:var(--amber-soft)}}
.thumb{width:6rem;height:3.6rem;object-fit:cover;border-radius:.35rem;border:1px solid var(--border);background:#eef2f7;display:block}
.thumb-lg{max-width:100%;border-radius:.6rem;border:1px solid var(--border);background:#eef2f7}
.empty{padding:2.4rem 1rem;text-align:center;color:var(--muted);font-size:.88rem}
.empty svg{width:2.4rem;height:2.4rem;margin:0 auto .6rem;color:#c4ccd8;display:block}
.pill-tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--border);margin-bottom:1rem}
.pill-tabs a{padding:.5rem .8rem;font-size:.84rem;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;transition:color .15s}
.pill-tabs a.active{color:var(--navy);border-color:var(--blue);font-weight:600}
.timeline{list-style:none;margin:0;padding:0}
.timeline li{position:relative;padding-left:1.4rem;padding-bottom:.8rem;border-left:2px solid var(--border);margin-left:.45rem}
.timeline li:last-child{border-left-color:transparent}
.timeline li::before{content:"";position:absolute;left:-.45rem;top:.25rem;width:.75rem;height:.75rem;border-radius:9999px;background:var(--blue);box-shadow:0 0 0 3px #fff,0 0 0 4px var(--border)}
.skeleton{background:linear-gradient(90deg,#eef2f7 25%,#f7f9fc 37%,#eef2f7 63%);background-size:400% 100%;animation:shimmer 1.3s infinite;border-radius:.4rem}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.htmx-request .htmx-indicator{display:inline-block}.htmx-indicator{display:none}
.toast{position:fixed;right:1.2rem;bottom:1.2rem;background:#fff;border:1px solid var(--border);border-left:4px solid var(--red);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);padding:.8rem 1rem;min-width:18rem;z-index:80;animation:toastIn .3s var(--ease)}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.progress{height:.4rem;border-radius:9999px;background:#eef2f7;overflow:hidden}
.progress>span{display:block;height:100%;border-radius:9999px;background:var(--blue);transition:width .4s var(--ease)}
.dl{display:grid;grid-template-columns:max-content 1fr;gap:.35rem 1rem;font-size:.82rem}
.dl dt{color:var(--muted);font-weight:500}.dl dd{margin:0;color:var(--text)}
/* ---------- camera wall ---------- */
.wall-grid{display:grid;gap:.85rem}
.wall-grid.cols-1{grid-template-columns:1fr}.wall-grid.cols-2{grid-template-columns:repeat(2,1fr)}.wall-grid.cols-3{grid-template-columns:repeat(3,1fr)}.wall-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.tile{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);animation:pageIn .35s var(--ease) both}
.tile-head{display:flex;justify-content:space-between;align-items:center;padding:.5rem .75rem;font-size:.76rem;border-bottom:1px solid var(--border)}
.tile-video{position:relative;background:#0b1220;aspect-ratio:16/9}
.tile-video video{width:100%;height:100%;object-fit:contain;display:block}
.tile-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#dbe4f5;font-size:.82rem;gap:.4rem;background:rgba(11,18,32,.78);transition:opacity .3s}
.tile-overlay.hidden{display:none}
.spinner{width:1.5rem;height:1.5rem;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:9999px;animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.tile-foot{display:flex;justify-content:space-between;align-items:center;padding:.45rem .75rem;font-size:.7rem;color:var(--muted)}
.picker{position:relative}
.picker-panel{display:none;position:absolute;right:0;top:2.6rem;width:26rem;max-height:28rem;overflow:auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);z-index:70;padding:.6rem;animation:pop .15s var(--ease)}
.picker.open .picker-panel{display:block}
.picker-row{display:flex;align-items:center;gap:.5rem;padding:.32rem .45rem;border-radius:.4rem;font-size:.8rem;cursor:pointer}
.picker-row:hover{background:var(--soft)}
.picker-row input{margin:0}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media print{.app-header,.app-footer,.no-print{display:none!important}.page{padding:0;animation:none}.card{box-shadow:none}}