:root{
  --bg:#0e1116;
  --panel:#161b22;
  --panel-2:#1c232d;
  --line:#2a323d;
  --text:#e6edf3;
  --muted:#8b97a7;
  --accent:#ff5a3c;
  --accent-ink:#fff;
  --radius:12px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text)}
button,input,select{font-family:inherit}
.hidden{display:none !important}

#app{display:flex;height:100vh;overflow:hidden}

/* ---------------- Sidebar ---------------- */
#sidebar{
  width:340px;min-width:340px;height:100%;
  background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:margin-left .28s ease, transform .28s ease;
}
.brand{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}
.brand .logo{flex:0 0 auto}
.brand-text h1{margin:0;font-size:20px;font-weight:800;letter-spacing:-.02em}
.brand-text .tag{font-size:11px;color:var(--muted)}
.scroll{flex:1;overflow-y:auto;padding:14px 16px 28px}
.scroll::-webkit-scrollbar{width:9px}
.scroll::-webkit-scrollbar-thumb{background:#2c3542;border-radius:8px}

.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:14px}
.panel h2{margin:0 0 10px;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);display:flex;align-items:center;gap:8px}
.pill{background:var(--accent);color:var(--accent-ink);font-size:11px;border-radius:20px;padding:1px 8px;font-weight:700}

.field{display:block;margin-bottom:10px}
.field>span{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field>span em{color:var(--muted);font-style:normal;opacity:.8}
.field input[type=text],.field select,.field textarea{
  width:100%;background:#0f141a;border:1px solid var(--line);color:var(--text);
  border-radius:9px;padding:9px 11px;font-size:14px;outline:none
}
.field textarea{resize:vertical;font-family:inherit;line-height:1.45}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}
.row2{display:flex;gap:10px}
.row2 .field{flex:1}
.field input[type=color]{width:100%;height:36px;background:#0f141a;border:1px solid var(--line);border-radius:9px;padding:3px;cursor:pointer}
.field input[type=range]{width:100%;accent-color:var(--accent)}
.row{display:flex;gap:6px 14px;margin:8px 0;flex-wrap:wrap;align-items:center}
.check{font-size:13px;color:var(--text);display:inline-flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap}
.check input{accent-color:var(--accent);margin:0}
.btnrow{display:flex;gap:8px}
.btnrow .btn{flex:1;justify-content:center}
.ic{width:15px;height:15px;flex:0 0 auto;display:block}

.search{position:relative;display:flex;gap:8px}
.search input{flex:1;background:#0f141a;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:9px 11px;font-size:14px;outline:none}
.search input:focus{border-color:var(--accent)}
.results{position:absolute;top:44px;left:0;right:0;z-index:30;background:#0f141a;border:1px solid var(--line);border-radius:9px;overflow:hidden;box-shadow:var(--shadow)}
.results div{padding:9px 11px;font-size:13px;cursor:pointer;border-bottom:1px solid var(--line)}
.results div:last-child{border-bottom:0}
.results div:hover{background:var(--panel-2)}
.hint{font-size:11px;color:var(--muted);margin:8px 2px}

.stops{list-style:none;margin:6px 0 10px;padding:0;display:flex;flex-direction:column;gap:8px}
.stop{background:#0f141a;border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.stop .top{display:flex;align-items:center;gap:8px}
.stop .idx{width:22px;height:22px;border-radius:50%;background:var(--accent);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.stop .name{flex:1;min-width:0;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stop .mini{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:0;color:var(--muted);cursor:pointer;padding:0;border-radius:6px;flex:0 0 auto}
.stop .mini:hover{color:var(--text);background:var(--panel-2)}
.stop .mini.on{color:var(--accent)}
.stop .mini .ic{width:14px;height:14px}
.stop .thumb{width:28px;height:28px;border-radius:6px;object-fit:cover;border:1px solid var(--line);flex:0 0 auto}
.stop .leg{display:flex;align-items:center;gap:8px;margin-top:8px}
.stop .leg span{font-size:11px;color:var(--muted)}
.stop .leg select{flex:1;background:#0f141a;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:6px 8px;font-size:13px}

.btn{display:inline-flex;align-items:center;gap:7px;border:0;border-radius:9px;padding:9px 12px;font-size:13px;font-weight:600;cursor:pointer;line-height:1}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{filter:brightness(1.07)}
.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--text)}
.btn.small{font-size:12px;padding:6px 10px}

.side-foot{padding:10px 16px;border-top:1px solid var(--line);font-size:10.5px;color:var(--muted)}

/* ---------------- Stage ---------------- */
#stage{flex:1;position:relative;display:flex;flex-direction:column;background:#070a0e}
#stage-inner{flex:1;display:flex;align-items:center;justify-content:center;padding:18px;min-height:0}
#mapbox{position:relative;box-shadow:var(--shadow);border-radius:14px;overflow:hidden;background:#1a1f27}
#map{position:absolute;inset:0}
#output{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;display:none}
#output.show{display:block}

.maplibregl-ctrl-attrib{font-size:10px}

#toolbar{display:flex;align-items:center;gap:10px;padding:12px 18px;border-top:1px solid var(--line);background:var(--panel)}
.tbtn{display:inline-flex;align-items:center;gap:8px;background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;line-height:1}
.tbtn .ic{width:16px;height:16px}
.tbtn:hover{border-color:var(--accent)}
.tbtn:disabled{opacity:.4;cursor:not-allowed}
.tbtn.rec{background:var(--accent);color:#fff;border-color:var(--accent)}
.tbtn.rec:hover{filter:brightness(1.08)}
.tbtn.dl{background:#1f6f43;border-color:#1f6f43;color:#fff}
.spacer{flex:1}

.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(7,10,14,.6);z-index:40;color:var(--text);font-size:14px}
.spinner{width:38px;height:38px;border-radius:50%;border:4px solid rgba(255,255,255,.15);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.toast{position:absolute;left:50%;bottom:78px;transform:translateX(-50%);background:#0f141a;border:1px solid var(--line);color:var(--text);padding:10px 16px;border-radius:10px;font-size:13px;box-shadow:var(--shadow);z-index:50;max-width:calc(100% - 32px);text-align:center}

/* ---------------- Collapsible nav + responsive ---------------- */
.nav-toggle{position:absolute;top:14px;left:14px;z-index:35;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--panel);border:1px solid var(--line);border-radius:10px;color:var(--text);cursor:pointer;box-shadow:var(--shadow)}
.nav-toggle:hover{border-color:var(--accent)}
.nav-toggle svg{width:20px;height:20px}
.nav-close{margin-left:auto;width:34px;height:34px;display:none;align-items:center;justify-content:center;background:transparent;border:0;color:var(--muted);cursor:pointer;border-radius:8px;flex:0 0 auto}
.nav-close:hover{color:var(--text);background:var(--panel-2)}
.nav-close svg{width:18px;height:18px}
#scrim{position:fixed;inset:0;background:rgba(4,7,10,.55);z-index:55;opacity:0;pointer-events:none;transition:opacity .28s}

/* desktop: slide the whole sidebar out */
body.nav-hidden #sidebar{margin-left:-341px}

@media (max-width:820px){
  #sidebar{position:fixed;top:0;left:0;bottom:0;width:min(340px,88vw);min-width:0;z-index:60;margin-left:0;transform:translateX(0)}
  body.nav-hidden #sidebar{margin-left:0;transform:translateX(-100%)}
  #stage{width:100%}
  #stage-inner{padding:10px}
  .nav-close{display:flex}
  body:not(.nav-hidden) #scrim{opacity:1;pointer-events:auto}
  #toolbar{gap:8px;padding:10px 12px;flex-wrap:wrap;justify-content:center}
}
@media (max-width:520px){
  #stage-inner{padding:6px}
  .nav-toggle{top:10px;left:10px;width:38px;height:38px}
  .spacer{display:none}
  /* icon-only control buttons; download keeps its label */
  .tbtn{font-size:0;gap:0;padding:9px 11px}
  .tbtn .ic{width:20px;height:20px}
  #btn-download{font-size:13px;gap:8px;padding:9px 14px}
}