/* The frame every page shares: a sticky header and a sticky bottom bar.
   One file, so a change here reaches every screen. The markup is the same on
   each page (scripts/check.mjs enforces it) and the colours come from each
   page's own :root (--tarmac --hazard --signage --alert).

   Header: TA (always goes home) · title or place · [bell] [avatar] · BM/EN
   Bottom: Declare · Trace · Garage · Help · Contact                          */

body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}

/* ---------- header ---------- */
.appbar{position:sticky;top:var(--ib,0px);z-index:50;width:100%;
  display:flex;align-items:center;gap:10px;color:#fff;padding:9px 12px 14px;
  /* tarmac with a hazard stripe along its lower edge */
  background:
    linear-gradient(var(--tarmac),var(--tarmac)) 0 0/100% calc(100% - 5px) no-repeat,
    repeating-linear-gradient(45deg,var(--hazard) 0 13px,var(--tarmac) 13px 26px)}
.appbar .ta{flex:none;width:36px;height:36px;display:grid;place-items:center;
  background:var(--hazard);color:var(--tarmac);text-decoration:none;
  font-family:'Archivo',sans-serif;font-variation-settings:'wdth' 125,'wght' 700;
  font-size:14px;letter-spacing:-.02em}
.appbar .ta:focus-visible,.appbar .bell:focus-visible{outline:2px solid #fff;outline-offset:2px}
.appbar .ttl{flex:1;min-width:0;font-size:13px;font-weight:600;color:#fff;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.appbar .ttl.loc{font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:500;color:var(--hazard)}
.appbar .r{display:flex;align-items:center;gap:8px;flex:none}

.appbar .bell{position:relative;width:34px;height:34px;display:grid;place-items:center;
  color:#fff;text-decoration:none;font-size:17px;line-height:1;border:2px solid #4A463A}
.appbar .bell[aria-current="page"]{border-color:var(--hazard)}
/* a dot, not a count: it only says "something is waiting" */
.appbar .dot{position:absolute;top:-5px;right:-5px;width:13px;height:13px;border-radius:50%;
  background:var(--alert);border:2px solid var(--tarmac);font-size:0;padding:0}
.appbar .dot[hidden]{display:none}

.appbar .lang{cursor:pointer;background:var(--tarmac);color:var(--hazard);border:2px solid var(--hazard);
  font-family:'Archivo',sans-serif;font-variation-settings:'wdth' 100,'wght' 700;
  font-size:11px;letter-spacing:.1em;padding:6px 8px;min-width:36px}
.appbar .lang:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* ---------- bottom bar ---------- */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--tarmac);
  display:flex;max-width:520px;margin:0 auto;padding-bottom:env(safe-area-inset-bottom)}
.tabbar a{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:5px;
  padding:11px 2px 12px;color:#8A8474;text-decoration:none;position:relative;transition:.14s}
.tabbar .ic{font-size:17px;line-height:1}
.tabbar .tx{font-family:'Archivo',sans-serif;font-variation-settings:'wdth' 100,'wght' 600;
  font-size:9.5px;letter-spacing:.1em;text-transform:uppercase}
.tabbar a[aria-current="page"]{color:var(--hazard)}
.tabbar a[aria-current="page"]::before{content:"";position:absolute;top:0;left:14%;right:14%;height:3px;background:var(--hazard)}
.tabbar a:focus-visible{outline:3px solid var(--hazard);outline-offset:-5px}
.tabbar .nudge{position:absolute;top:7px;right:calc(50% - 16px);width:9px;height:9px;background:var(--hazard);border-radius:50%}
.tabbar .nudge[hidden]{display:none}