:root{--navy:#0d1b2a;--navy2:#1d3348;--bg:#edf2f6;--card:#fff;--line:#d6e0e8;--text:#102033;--muted:#64778a;--orange:#f2652f;--green:#1d9460;--red:#c74848;--blue:#3b82a8}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}.app-shell{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:100vh}.sidebar{background:#0c1925;color:#eaf1f7;padding:28px 20px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;gap:12px;align-items:center}.brand-mark{display:grid;place-items:center;width:45px;height:45px;border-radius:13px;background:var(--orange);font-size:23px;font-weight:800}.brand strong{font-size:20px;letter-spacing:.14em}.brand small{display:block;font-size:10px;letter-spacing:.16em;color:#9fb3c3;margin-top:3px}.station-ident{margin:32px 0 18px;padding:16px;border-radius:12px;background:#14283a}.station-ident span,.station-ident small{display:block;color:#91a7ba;font-size:11px;font-weight:700;letter-spacing:.08em}.station-ident strong{display:block;font-size:17px;margin:6px 0}.sidebar nav{display:grid;gap:7px}.sidebar nav a{color:#d7e2eb;text-decoration:none;padding:13px 15px;border-radius:10px}.sidebar nav a.active{background:#1b3043;color:white}.sidebar nav span{float:right;background:#294257;padding:3px 6px;border-radius:5px;font-size:9px;color:#9cb2c3}.sidebar-bottom{margin-top:auto;font-size:13px;color:#a7bac9}.sidebar-bottom a{display:block;color:#cbd8e1;margin-top:10px}.presence{display:inline-block;padding:6px 10px;border-radius:999px;font-weight:800;font-size:11px;margin-bottom:8px}.presence.online{background:#dff3e9;color:#087343}.presence.warning{background:#fff0c7;color:#8b5b00}.content{padding:38px 36px 60px;min-width:0}.topbar{display:flex;justify-content:space-between;gap:25px;align-items:flex-start;margin-bottom:28px}.topbar h1{margin:8px 0 7px;font-size:34px}.topbar p{margin:0;color:var(--muted);font-size:17px}.eyebrow{font-size:12px;color:var(--orange);font-weight:850;letter-spacing:.14em}.portal-status-wrap{display:flex;align-items:center;gap:22px}.status{padding:10px 18px;border-radius:999px;background:#dff3e9;color:#087343;font-size:12px;font-weight:850}.timer{background:#0c1925;color:white;padding:15px 22px;border-radius:14px;text-align:center;min-width:170px}.timer span{display:block;font-family:Consolas,monospace;font-size:23px}.timer small{color:#9bb2c5}.portal-welcome{background:linear-gradient(135deg,#193047,#26445e);color:white;border-radius:18px;padding:28px 34px;display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.portal-welcome h2{font-size:26px;margin:6px 0}.portal-welcome p{color:#dce8f1;margin:0;max-width:780px}.sector-badge{font-size:26px;font-weight:900;padding:18px 22px;border-radius:14px;background:rgba(255,255,255,.12)}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:25px}.kpi,.panel{background:white;border:1px solid var(--line);border-radius:16px}.kpi{padding:20px}.kpi span{display:block;color:var(--muted);font-size:12px}.kpi strong{display:block;font-size:24px;margin-top:11px}.connected-text{color:var(--green)}.panel{padding:25px;margin-bottom:24px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.panel h3{font-size:23px;margin:0 0 5px}.panel p{color:var(--muted)}.event-indicator{background:#fde7dc;color:#bf461b;padding:7px 10px;border-radius:999px;font-size:11px;font-weight:800}.hidden{display:none}.received-event{border:1px solid var(--line);border-left:5px solid var(--blue);border-radius:13px;padding:17px 18px;margin-top:14px}.received-event.severity-warning{border-left-color:#df9d18}.received-event.severity-critical{border-left-color:var(--red)}.received-event.acknowledged{opacity:.78}.received-head{display:flex;justify-content:space-between;gap:20px}.received-head h4{margin:5px 0;font-size:18px}.severity-label,.ack-state{font-size:10px;font-weight:850;color:#778999}.small-btn,button{border:0;border-radius:10px;background:var(--orange);color:white;font-weight:800;padding:11px 15px;cursor:pointer}.placeholder-box{height:145px;border:2px dashed #cfdae3;border-radius:13px;display:grid;place-items:center;color:#93a4b2}.empty{text-align:center;padding:34px;color:#728496}.login-body{min-height:100vh;display:grid;place-items:center;padding:25px;background:radial-gradient(circle at top,#23445e 0,#101d2a 42%,#08121b 100%)}.login-card{width:min(500px,100%);background:white;border-radius:22px;padding:38px;box-shadow:0 20px 70px rgba(0,0,0,.28)}.brand.big strong{color:#122235}.cloud-label{margin-top:30px;color:var(--orange);font-size:11px;font-weight:850;letter-spacing:.14em}.login-card h1{font-size:30px;margin-bottom:8px}.login-card>p{color:var(--muted)}.login-form{display:grid;gap:16px;margin-top:25px}.login-form label{font-size:13px;font-weight:750}.login-form input{width:100%;margin-top:7px;border:1px solid #cad6df;border-radius:11px;padding:14px;font-size:16px}.login-form button{padding:15px;font-size:15px}.error-box{background:#fde5e5;color:#a92929;padding:13px;border-radius:10px;margin-top:18px}.login-card footer{text-align:center;color:#94a2af;font-size:11px;margin-top:25px}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.sidebar nav{display:none}.content{padding:22px 15px}.topbar,.portal-status-wrap{flex-direction:column}.kpi-grid{grid-template-columns:1fr 1fr}.portal-welcome{align-items:flex-start}.timer{width:100%}}@media(max-width:520px){.kpi-grid{grid-template-columns:1fr}.portal-welcome{padding:22px;flex-direction:column;gap:20px}.topbar h1{font-size:27px}}