:root{
  --bg:#0b1020; --surface:#121632; --muted:#9aa3b2; --text:#eef2ff;
  --pri:#6ea8fe; --pri-2:#9ec2ff; --chip:#1b2146; --border:#23284a;
  --ok:#22c55e; --warn:#f59e0b; --err:#ef4444;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;background:linear-gradient(120deg,#0a0f1e,#121739);color:var(--text)}

/* Top App Bar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:10px;padding:10px 16px;background:rgba(10,14,34,.8);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.brand{font-weight:800;letter-spacing:.2px}
.top-actions{margin-left:auto;display:flex;gap:8px}
.icon-btn{border:1px solid var(--border);background:#0f1430;border-radius:12px;padding:8px 10px;color:var(--text);cursor:pointer}
.search{flex:1;display:flex;gap:8px;align-items:center;border:1px solid var(--border);background:#0f1430;border-radius:12px;padding:6px 10px}
.search input{flex:1;background:transparent;border:0;outline:0;color:var(--text)}

/* Container */
.container{max-width:1000px;margin:0 auto;padding:16px 16px 84px}

/* Cards & chips */
.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 6px 30px rgba(0,0,0,.25);padding:16px;margin:12px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.item-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;border:1px solid var(--border);background:#0b0f28}
.kv{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--chip);padding:6px 10px;border-radius:999px;font-size:12px;color:#cdd5ff}

/* Buttons & inputs */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;background:var(--pri);color:#0b1221;font-weight:700;border:0;cursor:pointer}
.btn.secondary{background:#263065;color:var(--text)}
.label{font-size:12px;color:var(--muted);margin:6px 0}
.input,select,textarea{width:100%;padding:10px 12px;background:#0f1430;border:1px solid var(--border);border-radius:12px;color:var(--text)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:760px){.row{grid-template-columns:1fr}}

/* Bottom Tab Bar */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:repeat(5,1fr);background:#0f1430;border-top:1px solid var(--border)}
.tabbar a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;color:#cbd5ff;text-decoration:none}
.tabbar a.active{color:#ffffff}
.tabbar .dot{width:6px;height:6px;border-radius:999px;background:var(--pri)}

/* Slide-over / Modal */
.overlay{position:fixed;inset:0;background:rgba(5,8,20,.6);display:none;align-items:flex-end;justify-content:center;z-index:45}
.overlay.open{display:flex}
.sheet{width:100%;max-width:720px;background:var(--surface);border-top-left-radius:16px;border-top-right-radius:16px;border:1px solid var(--border);padding:16px 16px 24px;box-shadow:0 -10px 50px rgba(0,0,0,.35)}
.sheet .sheet-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.sheet .close{background:#263065;border:0;color:#fff;border-radius:10px;padding:6px 10px;cursor:pointer}

.notice{padding:12px;border-radius:12px;background:#0f1430;border:1px dashed var(--border);color:#cbd5ff;margin:8px 0}
small.muted{color:var(--muted)}
footer{opacity:.7;font-size:12px;padding:24px;text-align:center}