:root{
  --bg:#f1f5f9; --surface:#ffffff; --surface2:#f8fafc;
  --ink:#0f172a; --ink2:#334155; --mut:#64748b; --line:#e2e8f0; --line2:#eef2f7;
  --brand:#0d9488; --brand-ink:#0f766e; --brand-soft:#ccfbf1; --accent:#2563eb;
  --ok:#16a34a;
  --radius:16px; --shadow:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.06);
  --shadow-lg:0 12px 40px rgba(15,23,42,.14);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --head:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);
  -webkit-font-smoothing:antialiased;overflow:hidden}
button{font-family:inherit}

/* ---------- Topbar ---------- */
.topbar{height:var(--head);display:flex;align-items:center;gap:16px;padding:0 20px;
  background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:40}
.brand{display:flex;align-items:center;gap:12px;min-width:0;flex:1 1 auto}
.logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:22px;color:#fff;
  background:linear-gradient(135deg,var(--brand),#0891b2);box-shadow:0 6px 16px rgba(13,148,136,.32);flex:none}
.brand>div{min-width:0;overflow:hidden}
.brand h1{font-size:16px;font-weight:800;letter-spacing:-.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand small{display:block;color:var(--mut);font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.acc{display:flex;align-items:center;gap:9px}
.acc .txt b{font-size:13px;display:block;color:var(--ink2)}
.acc .txt small{font-size:11px;color:var(--mut)}
.switch{position:relative;width:44px;height:25px;cursor:pointer;flex:none}
.switch input{display:none}
.switch span{position:absolute;inset:0;background:#cbd5e1;border-radius:20px;transition:.2s}
.switch span::after{content:"";position:absolute;width:19px;height:19px;border-radius:50%;
  background:#fff;top:3px;left:3px;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked+span{background:var(--brand)}
.switch input:checked+span::after{transform:translateX(19px)}
.langs{display:flex;background:var(--surface2);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.lang{padding:7px 12px;background:none;border:none;color:var(--mut);font-weight:700;cursor:pointer;font-size:13px}
.lang.active{background:var(--brand);color:#fff}
.reset-btn{padding:8px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink2);font-weight:700;cursor:pointer;font-size:13px}
.reset-btn:hover{border-color:var(--brand);color:var(--brand-ink)}
.icon-btn{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:var(--surface);font-size:19px;cursor:pointer;color:var(--ink2);align-items:center;justify-content:center;flex:none}

/* ---------- Layout ---------- */
.app{display:grid;grid-template-columns:330px 1fr 370px;height:calc(100dvh - var(--head))}
.col{height:100%;min-height:0;overflow:hidden;display:flex;flex-direction:column;background:var(--surface)}
.col.left{border-right:1px solid var(--line)}
.col.right{border-left:1px solid var(--line)}
.col.center{background:var(--bg);position:relative}

/* ---------- Búsqueda + directorio ---------- */
.search-wrap{padding:16px 16px 8px}
.search{display:flex;align-items:center;gap:10px;background:var(--surface2);border:1px solid var(--line);
  border-radius:12px;padding:0 14px;transition:.15s}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.search input{flex:1;background:none;border:none;color:var(--ink);font-size:14px;padding:12px 0;outline:none}
.search input::placeholder{color:var(--mut)}
.search .mag{color:var(--mut);font-size:15px}
.dir-title{padding:8px 18px 4px;font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--mut);font-weight:800}
.chips{display:flex;gap:7px;padding:6px 16px 12px;overflow-x:auto;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{padding:7px 12px;border-radius:20px;border:1px solid var(--line);background:var(--surface);
  color:var(--mut);font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;flex:none}
.chip:hover{border-color:var(--brand)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}
.dir-list{flex:1;overflow-y:auto;padding:4px 12px 28px;display:flex;flex-direction:column;gap:6px}
.dir-item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:10px 12px;cursor:pointer;
  color:var(--ink);transition:.12s}
.dir-item:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-1px)}
.dir-item.active{border-color:var(--brand);background:var(--brand-soft)}
.dir-item .ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-size:18px;flex:none}
.dir-item .meta{flex:1;min-width:0}
.dir-item .meta b{font-size:14px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:700}
.dir-item .meta small{color:var(--mut);font-size:12px}
.dir-item .go{color:var(--mut);font-size:17px;font-weight:800}
.empty{color:var(--mut);text-align:center;padding:30px;font-size:13px}

/* ---------- Centro: plano ---------- */
.map-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;
  background:var(--surface);border-bottom:1px solid var(--line)}
.map-head h2{font-size:15px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.floor-btns{display:flex;gap:7px;overflow-x:auto;scrollbar-width:none}
.floor-btns::-webkit-scrollbar{display:none}
.fbtn{display:flex;flex-direction:column;align-items:center;gap:0;min-width:58px;
  padding:7px 9px;border-radius:11px;border:1px solid var(--line);background:var(--surface);
  color:var(--mut);cursor:pointer;flex:none}
.fbtn b{font-size:15px;color:var(--ink2);line-height:1.2}
.fbtn small{font-size:10px}
.fbtn:hover{border-color:var(--brand)}
.fbtn.active{border-color:var(--brand);background:var(--brand-soft)}
.fbtn.active b,.fbtn.active small{color:var(--brand-ink)}
.stage{flex:1;display:grid;place-items:center;padding:18px;overflow:hidden}
.plan{width:100%;height:100%;max-height:100%}
.room{cursor:pointer;transition:.15s}
.room:hover{filter:brightness(.98) saturate(1.1)}
.route-anim{stroke-dasharray:1 13;animation:dash 1s linear infinite}
@keyframes dash{to{stroke-dashoffset:-14}}
.pulse{animation:pulse 1.9s ease-out infinite;transform-origin:center}
@keyframes pulse{0%{r:15;opacity:.55}100%{r:40;opacity:0}}
.legend{position:absolute;left:18px;bottom:14px;display:flex;gap:12px;flex-wrap:wrap;
  background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:12px;padding:8px 12px;
  box-shadow:var(--shadow);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.legend span{font-size:11px;color:var(--mut);display:flex;align-items:center;gap:6px;font-weight:500}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}
.demo-flag{position:absolute;bottom:14px;right:16px;font-size:10px;letter-spacing:.5px;text-transform:uppercase;
  color:var(--mut);background:rgba(255,255,255,.92);border:1px solid var(--line);padding:4px 9px;border-radius:20px;
  box-shadow:var(--shadow)}

/* ---------- Panel derecho / hoja de ruta ---------- */
.col.right{overflow:hidden}
.sheet-handle,.sheet-close{display:none}
#panel{flex:1;overflow-y:auto;padding:20px}
.panel-empty{color:var(--mut);font-size:14px;display:grid;place-items:center;height:100%;text-align:center;
  padding:30px;gap:10px}
.panel-empty .big{font-size:34px;opacity:.5}
.dest-head{display:flex;gap:13px;align-items:center;margin-bottom:16px}
.dest-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:25px;flex:none;color:#fff;
  box-shadow:var(--shadow)}
.dest-head h2{font-size:19px;font-weight:800;line-height:1.2;letter-spacing:-.3px}
.dest-head span{color:var(--mut);font-size:13px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:16px}
.kpi{background:var(--surface2);border:1px solid var(--line);border-radius:14px;padding:13px 6px;text-align:center}
.kpi b{font-size:23px;font-weight:800;color:var(--brand-ink);display:block;letter-spacing:-.5px}
.kpi small{font-size:11px;color:var(--mut)}
.floor-tabs{display:flex;gap:7px;margin-bottom:18px;flex-wrap:wrap}
.ft{padding:7px 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  color:var(--mut);font-size:12px;font-weight:700;cursor:pointer}
.ft.on{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-soft)}
.steps-title{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--mut);margin-bottom:12px;font-weight:800}
.steps{list-style:none;display:flex;flex-direction:column;margin-bottom:18px}
.steps li{display:flex;align-items:center;gap:13px;padding:10px 0;font-size:14px;color:var(--ink2);
  border-left:2px solid var(--line);margin-left:17px;padding-left:18px;position:relative}
.steps li span:first-child{position:absolute;left:-18px;width:33px;height:33px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;font-size:15px}
.steps li.dest{color:var(--brand-ink);font-weight:700}
.steps li.dest span:first-child{border-color:var(--brand);background:var(--brand-soft)}
.mobile-card{display:flex;align-items:center;gap:13px;background:var(--surface2);border:1px solid var(--line);
  border-radius:16px;padding:13px}
.mobile-card .qr{width:80px;height:80px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:5px;flex:none}
.qr-svg{width:100%;height:100%;display:block}
.mobile-card b{font-size:14px;display:block;margin-bottom:3px}
.mobile-card small{color:var(--mut);font-size:12px;line-height:1.4}

/* ---------- Backdrop (drawer móvil) ---------- */
.backdrop{position:fixed;inset:0;background:rgba(15,23,42,.4);opacity:0;pointer-events:none;
  transition:.2s;z-index:45}
body.drawer-open .backdrop{opacity:1;pointer-events:auto}

::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:9px}
::-webkit-scrollbar-thumb:hover{background:#94a3b8}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet: directorio queda como cajón, ruta como hoja inferior */
@media (max-width:1024px){
  .app{grid-template-columns:1fr}
  .icon-btn{display:flex}
  .acc{display:none}
  .demo-flag{top:auto;bottom:14px;right:14px}
  .stage{align-items:start}
  .plan{height:auto}

  /* Directorio = cajón lateral off-canvas */
  .col.left{position:fixed;top:var(--head);left:0;bottom:0;width:min(380px,86vw);z-index:50;
    transform:translateX(-100%);transition:transform .25s ease;box-shadow:var(--shadow-lg);border-right:1px solid var(--line)}
  body.drawer-open .col.left{transform:translateX(0)}

  /* Panel de ruta = hoja inferior */
  .col.right{position:fixed;left:0;right:0;bottom:0;top:auto;height:auto;max-height:82dvh;z-index:48;
    transform:translateY(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
    border:1px solid var(--line);border-bottom:none;border-radius:22px 22px 0 0;box-shadow:var(--shadow-lg)}
  body.has-route .col.right{transform:translateY(0)}
  .sheet-handle{display:block;width:42px;height:5px;border-radius:5px;background:#cbd5e1;
    margin:10px auto 2px}
  .sheet-close{display:grid;place-items:center;position:absolute;top:12px;right:14px;width:34px;height:34px;
    border-radius:50%;border:1px solid var(--line);background:var(--surface);font-size:18px;cursor:pointer;color:var(--mut);z-index:2}
  #panel{padding:6px 18px 24px;max-height:calc(82dvh - 20px)}
}

/* Móvil */
@media (max-width:640px){
  :root{--head:58px}
  .topbar{padding:0 14px;gap:10px}
  .brand small{display:none}
  .brand h1{font-size:15px}
  .logo{width:38px;height:38px;font-size:20px}
  .top-right{gap:8px}
  .reset-btn{padding:8px 11px;font-size:12px}
  .lang{padding:6px 10px;font-size:12px}
  .map-head{padding:10px 14px}
  .stage{padding:12px}
  .legend{display:none}
  .kpi b{font-size:21px}
  .dest-head h2{font-size:18px}
}

/* pantallas muy bajas (kiosco landscape pequeño) */
@media (max-height:560px){ .legend{display:none} }