/* Multi-city live traffic cameras: shared shell */
:root{
  --bg:#0d1117;--bg2:#161b22;--bg3:#21262d;--bg-inp:#0d1117;
  --border:#30363d;--text:#e6edf3;--text-m:#8b949e;--text-f:#6e7681;
  --accent:#3b82f6;--accent-dim:rgba(59,130,246,.15);
  --live:#22c55e;--danger:#ef4444;--card-r:10px;
  --chip:#21262d;--chip-on:#1f6feb;--chip-on-tx:#fff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  min-height:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{font-family:inherit}

/* header */
.top{
  position:sticky;top:0;z-index:50;background:rgba(13,17,23,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
.top-inner{max-width:1400px;margin:0 auto;padding:10px 16px;display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:10px;height:10px;border-radius:50%;background:var(--live);
  box-shadow:0 0 0 0 rgba(34,197,94,.55);animation:live-pulse 1.8s ease infinite}
@keyframes live-pulse{0%,100%{box-shadow:0 0 0 0 rgba(34,197,94,.55)}50%{box-shadow:0 0 0 6px rgba(34,197,94,0)}}
.brand h1{font-size:15px;font-weight:700;margin:0;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .sub{font-size:11px;color:var(--text-m);margin-top:1px}
.live-tag{display:inline-flex;align-items:center;gap:5px;font-size:10px;font-weight:700;
  letter-spacing:.06em;color:var(--live);text-transform:uppercase}
.stat{font-size:12px;color:var(--text-m);white-space:nowrap}
.stat b{color:var(--text);font-weight:600}

.controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;flex:1;justify-content:flex-end}
.search{
  background:var(--bg-inp);border:1px solid var(--border);color:var(--text);
  border-radius:8px;padding:7px 10px;font-size:13px;min-width:180px;width:min(280px,100%);
  outline:none;
}
.search:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}
.sel,.btn{
  background:var(--bg-inp);border:1px solid var(--border);color:var(--text);
  border-radius:8px;padding:7px 10px;font-size:12px;font-weight:600;cursor:pointer;
}
.sel{appearance:none;padding-right:24px;background-image:linear-gradient(45deg,transparent 50%,var(--text-m) 50%),linear-gradient(135deg,var(--text-m) 50%,transparent 50%);
  background-position:calc(100% - 12px) 55%,calc(100% - 7px) 55%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.btn:hover{border-color:var(--accent);color:#fff}
.btn.on{background:var(--chip-on);border-color:var(--chip-on);color:var(--chip-on-tx)}
.btn:disabled{opacity:.4;cursor:default}

/* chips */
.chip-row{max-width:1400px;margin:0 auto;padding:8px 16px 10px;display:flex;flex-wrap:wrap;gap:6px}
.chip{
  background:var(--chip);border:1px solid var(--border);color:var(--text-m);
  border-radius:999px;padding:5px 11px;font-size:12px;font-weight:600;cursor:pointer;
}
.chip:hover{border-color:var(--text-f);color:var(--text)}
.chip.on{background:var(--chip-on);border-color:var(--chip-on);color:var(--chip-on-tx)}

/* layout */
.main{max-width:1400px;margin:0 auto;padding:12px 16px 48px}
#map-wrap{display:none;height:min(48vh,420px);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:12px}
#map-wrap.open{display:block}
#map{width:100%;height:100%;background:var(--bg2)}

.grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;
}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid.cols-6{grid-template-columns:repeat(6,minmax(0,1fr))}
@media(max-width:900px){
  .grid.cols-4,.grid.cols-6{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:640px){
  .grid,.grid.cols-3,.grid.cols-4,.grid.cols-6{grid-template-columns:repeat(2,minmax(0,1fr))}
  .brand h1{font-size:14px}
  .search{min-width:0;flex:1}
}

.card{
  background:var(--bg2);border:1px solid var(--border);border-radius:var(--card-r);
  overflow:hidden;cursor:pointer;display:flex;flex-direction:column;
}
.card:hover{border-color:#484f58;box-shadow:0 0 0 1px #484f58}
.card.offline{opacity:.55}
.img-wrap{position:relative;aspect-ratio:16/10;background:#000;overflow:hidden}
.img-wrap img{width:100%;height:100%;object-fit:cover;display:block;background:#0a0e14}
.img-wrap .ph{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--text-f);font-size:12px;background:var(--bg3);
}
.fav{
  position:absolute;top:6px;right:6px;width:28px;height:28px;border-radius:8px;
  border:1px solid rgba(255,255,255,.15);background:rgba(0,0,0,.45);color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;line-height:1;
}
.fav:hover{background:rgba(0,0,0,.7)}
.fav.on{color:#fbbf24;border-color:rgba(251,191,36,.5)}
.info{padding:8px 10px 10px}
.name{font-size:12px;font-weight:600;margin:0 0 4px;line-height:1.3;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--text-m)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--live);flex-shrink:0;
  animation:dot-blink 2s ease infinite}
@keyframes dot-blink{0%,100%{opacity:1}50%{opacity:.25}}
.badge{background:var(--bg3);border:1px solid var(--border);border-radius:999px;padding:2px 7px;color:var(--text-m)}

.empty{
  grid-column:1/-1;text-align:center;padding:48px 16px;color:var(--text-m);
  border:1px dashed var(--border);border-radius:12px;background:var(--bg2)
}
.empty h2{margin:0 0 6px;font-size:16px;color:var(--text)}
.empty p{margin:0;font-size:13px}

.lm{text-align:center;padding:18px 0 8px}
.lm button{
  background:var(--accent);color:#fff;border:none;border-radius:9px;
  padding:10px 18px;font-size:13px;font-weight:700;cursor:pointer;
}
.lm button:hover{box-shadow:0 0 20px rgba(59,130,246,.45)}
.lm .sub{margin-top:8px;font-size:12px;color:var(--text-m)}

/* modal */
.modal{
  position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.72);
  display:none;align-items:center;justify-content:center;padding:16px;
}
.modal.open{display:flex}
.modal-card{
  width:min(960px,100%);background:var(--bg2);border:1px solid var(--border);
  border-radius:14px;overflow:hidden;max-height:min(92vh,900px);display:flex;flex-direction:column;
}
.modal-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--border)}
.modal-head h2{flex:1;margin:0;font-size:15px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-x,.nav-btn{
  background:var(--bg3);border:1px solid var(--border);color:var(--text);
  border-radius:8px;width:34px;height:34px;cursor:pointer;font-size:16px;
}
.modal-x:hover,.nav-btn:hover{border-color:var(--accent)}
.modal-body{background:#000;display:flex;align-items:center;justify-content:center;min-height:200px}
.modal-body img{max-width:100%;max-height:min(70vh,720px);display:block}
.modal-foot{padding:10px 14px;font-size:12px;color:var(--text-m);border-top:1px solid var(--border);
  display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between}

/* hub */
.hub{max-width:1100px;margin:0 auto;padding:28px 16px 60px}
.hub h1{font-size:28px;margin:0 0 8px;letter-spacing:-.02em}
.hub p.lead{color:var(--text-m);margin:0 0 22px;font-size:15px;line-height:1.5;max-width:60ch}
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.city-card{
  display:block;background:var(--bg2);border:1px solid var(--border);border-radius:12px;
  padding:16px;color:inherit;text-decoration:none;min-height:120px;
}
.city-card:hover{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);text-decoration:none}
.city-card h2{margin:0 0 6px;font-size:17px}
.city-card .cnt{font-size:13px;color:var(--live);font-weight:700}
.city-card .src{margin-top:10px;font-size:11px;color:var(--text-f);line-height:1.35}
.hub-note{margin-top:28px;font-size:12px;color:var(--text-f);line-height:1.5}

.skel{background:linear-gradient(90deg,var(--bg3) 25%,var(--bg2) 50%,var(--bg3) 75%);
  background-size:200% 100%;animation:sk 1.2s linear infinite;border-radius:var(--card-r);aspect-ratio:16/12}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}