:root{
 --bg:#071018;--panel:#0f1924;--panel2:#162332;--line:#263647;
 --text:#f7fbff;--muted:#93a4b6;--blue:#198cff;--green:#2dd47d;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
.topnav{height:64px;display:flex;align-items:center;gap:22px;padding:0 18px;background:#0a141e;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.brand{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:800}
.brandmark{width:34px;height:34px;border:1px solid #64788d;border-radius:10px;display:grid;place-items:center}
.topnav nav{display:flex;gap:6px;overflow:auto}
.topnav nav a{padding:9px 11px;border-radius:9px;color:#b8c5d2;font-size:14px}
.topnav nav a.active{background:#173a60;color:#fff}
.logout{margin-left:auto;font-size:13px;color:#a8b7c7}
.container{max-width:1320px;margin:auto;padding:18px}
.grid{display:grid;gap:14px}
.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px}
.card h2,.card h3{margin-top:0}
.muted{color:var(--muted)}
.btn{border:0;border-radius:10px;padding:10px 13px;background:#26384b;color:white;font-weight:700;cursor:pointer}
.btn.primary{background:var(--blue)}
.btn.danger{background:#b4232c}
input,select{width:100%;border:1px solid #314458;border-radius:10px;background:#0c1621;color:white;padding:10px}
label{display:block;font-size:13px;color:#aebccc;margin:10px 0 6px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px;border-bottom:1px solid var(--line);font-size:14px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 8px;border-radius:999px;background:#162434;color:#b9c8d7;font-size:12px}
.dot{width:8px;height:8px;border-radius:50%;background:#66798d}.dot.on{background:var(--green);box-shadow:0 0 9px #2dd47d}
.flash{padding:12px;border:1px solid #28527e;background:#102b47;border-radius:12px;margin-bottom:14px}

/* Login */
.authwrap{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 50% 20%,#153a5c,#071018 48%)}
.authcard{width:min(430px,100%);background:#0d1823;border:1px solid #26394b;border-radius:20px;padding:24px;box-shadow:0 25px 70px #0007}
.authcard h1{margin:0 0 8px}.authcard button{width:100%;margin-top:14px}

/* 3D home */
.home-screen{position:relative;height:calc(100vh - 64px);min-height:600px;overflow:hidden;background:#020508}
.home-img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;filter:brightness(.20) saturate(.75)}
.room-light{position:absolute;inset:0;background-image:url('home-3d.png');background-repeat:no-repeat;background-position:center;background-size:contain;opacity:0;transition:opacity .25s;pointer-events:none}
.room-light.on{opacity:1}
.hotspot{position:absolute;transform:translate(-50%,-50%);z-index:8;border:1px solid #ffffff22;background:#071018dd;color:white;border-radius:999px;padding:7px 9px;display:flex;align-items:center;gap:6px;cursor:pointer;backdrop-filter:blur(8px)}
.hotspot.on{background:#ffd35c;color:#151515;box-shadow:0 0 22px #ffd35c99}
.hotspot .label{font-size:11px;white-space:nowrap}
.hotspot .bulb{filter:grayscale(1);opacity:.55}.hotspot.on .bulb{filter:none;opacity:1}
.home-head{position:absolute;top:14px;left:14px;right:14px;z-index:10;display:flex;justify-content:space-between;align-items:center;pointer-events:none}
.home-head>*{pointer-events:auto}.home-title{font-size:24px;font-weight:800;text-shadow:0 2px 12px #000}
.home-actions{display:flex;gap:8px}.home-actions button{border:0;border-radius:999px;padding:9px 12px;background:#071018dd;color:#fff;font-weight:700;backdrop-filter:blur(8px)}
.home-actions .all-on{background:#178cff}
.home-foot{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:10;background:#071018dd;border:1px solid #ffffff18;padding:9px 13px;border-radius:999px;color:#d7e0e9;font-size:12px;backdrop-filter:blur(8px)}
@media(max-width:850px){.topnav nav{display:none}.home-screen{height:calc(100vh - 64px)}.hotspot .label{display:none}.hotspot{padding:7px}}