/* ─────────────────────────────────────────────────────────────────────────
   shell.css: fi8 shared chrome & design tokens
   index.html (the app) and tour.html link to this for one consistent
   palette/type scale. Do NOT put screen-specific styles here, only tokens,
   base resets, and chrome used across more than one screen (topbar, bottom
   nav, hamburger menu, mic FAB, card/chip/badge language, shared keyframes).
   Both files link this with a ?v= query string; bump it on every change or
   browsers/Cloudflare can keep serving a stale cached copy indefinitely.
───────────────────────────────────────────────────────────────────────── */

:root{
  --bg:#f5f6f8; --surface:#ffffff; --surface2:#eef0f3;
  --border:#e3e6ea;
  --accent:#2c5cff; --accent2:#1fa356; --gold:#b7791f; --red:#e5484d; --red-dark:#b3282c;
  --text:#141a26; --muted:#5c6470;
  --nav-h:64px;
  --r-sm:10px; --r-md:14px; --r-lg:20px;
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg); color:var(--text);
  font-family:'Inter',-apple-system,system-ui,sans-serif;
  font-size:15px; line-height:1.45;
}
button{font-family:inherit;color:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit;font-size:16px}
a{color:inherit}

@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
@keyframes slideUpFade{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(229,72,77,.5)}70%{box-shadow:0 0 0 22px rgba(229,72,77,0)}100%{box-shadow:0 0 0 0 rgba(229,72,77,0)}}
@keyframes micRing{0%{box-shadow:0 4px 20px rgba(229,72,77,.5),0 0 0 0 rgba(229,72,77,.35)}70%{box-shadow:0 4px 20px rgba(229,72,77,.5),0 0 0 14px rgba(229,72,77,0)}100%{box-shadow:0 4px 20px rgba(229,72,77,.5),0 0 0 0 rgba(229,72,77,0)}}

/* ── topbar ── */
.topbar{
  background:var(--surface); border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px 10px; flex:0 0 auto;
}
.brand{font-weight:800;font-size:22px;letter-spacing:-0.5px}
.brand span{color:var(--accent)}
.brand .num{color:var(--red)}
.topbar .sub{font-size:12.5px;color:var(--accent);font-weight:800;letter-spacing:-.01em}

/* ── card / chip / badge language (shared across every tab) ── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;margin-bottom:14px}
.card h3{font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:600;margin-bottom:12px}
.section-title{font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:600;margin:18px 4px 10px}
.muted{color:var(--muted)}
.chip{background:var(--surface2);border:1px solid var(--border);border-radius:20px;padding:6px 12px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px}
.chip .x{color:var(--muted);font-size:14px}
.chip.warn{border-color:var(--gold);color:var(--gold)}
.chip.latest{background:rgba(31,163,86,.1);border-color:rgba(31,163,86,.3);color:#166534}
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:700;margin-left:4px}
.badge.good{background:rgba(31,163,86,.15);color:var(--accent2)}
.badge.warn{background:rgba(183,121,31,.16);color:var(--gold)}
.badge.bad{background:rgba(229,72,77,.15);color:var(--red)}
.err{background:rgba(229,72,77,.1);border:1px solid rgba(229,72,77,.28);color:var(--red-dark);border-radius:var(--r-sm);padding:12px;font-size:13px;text-align:center;margin-top:10px}

/* ── bottom nav ── */
nav{
  display:flex; align-items:center; justify-content:space-around;
  background:var(--surface); border-top:1px solid var(--border);
  padding:0 8px env(safe-area-inset-bottom); height:var(--nav-h);
  position:relative; flex:0 0 auto;
}
nav button[data-tab]{
  flex:1; display:flex; flex-direction:column; align-items:center;
  justify-content:center; gap:3px; padding:8px 4px;
  font-size:11px; font-weight:500; color:var(--muted);
  border-top:2px solid transparent; transition:color .15s, border-color .15s;
}
nav button[data-tab].active{ color:var(--accent); border-top-color:var(--accent); }
nav button[data-tab] svg{ width:22px; height:22px; fill:none; stroke:currentColor; stroke-width:1.8; }
#gymNavBtn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:8px 4px;font-size:11px;font-weight:500;color:var(--muted);border-top:2px solid transparent;transition:color .15s,border-color .15s}
#gymNavBtn.active{color:var(--accent);border-top-color:var(--accent)}
#gymNavBtn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8}

/* ── hamburger menu ── */
.ham-menu{position:fixed;top:62px;right:14px;z-index:300;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:0 8px 28px rgba(0,0,0,.14);min-width:210px;overflow:hidden;animation:fade .15s ease}
.ham-item{display:flex;align-items:center;gap:12px;padding:13px 16px;font-size:13px;font-weight:600;color:var(--text);border-bottom:1px solid var(--surface2);cursor:pointer;text-decoration:none;background:none;border-left:none;border-right:none;border-radius:0;width:100%;text-align:left}
.ham-item:last-child{border-bottom:none}
.ham-item svg{flex-shrink:0;color:var(--muted)}
.ham-item.ham-admin{background:#fffbeb}
.ham-item.ham-admin svg{color:#b7791f}
.ham-badge{margin-left:auto;background:rgba(183,121,31,.16);color:var(--gold);font-size:11px;font-weight:700;padding:2px 6px;border-radius:6px}
.ham-item.ham-danger{color:var(--red)}
.ham-item.ham-danger svg{color:var(--red)}

/* ── mic FAB (floats over nav during an active session) ── */
#mic-fab{
  position:fixed; bottom:calc(var(--nav-h) + 10px); left:50%;
  transform:translateX(-50%);
  display:none; flex-direction:column; align-items:center; gap:5px;
  z-index:50; pointer-events:none;
}
#mic-fab.show{ display:flex; }
.mic-fab-btn{
  width:60px; height:60px; border-radius:50%;
  background:var(--red); color:#fff; border:3px solid #fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 20px rgba(229,72,77,.5);
  transition:transform .15s, box-shadow .15s;
  pointer-events:all;
}
.mic-fab-btn:active{ transform:scale(.93); box-shadow:0 2px 8px rgba(229,72,77,.4); }
.mic-fab-btn svg{ width:26px; height:26px; fill:none; stroke:#fff; stroke-width:2; }
.mic-fab-btn.rec{ background:#c23a3e; animation:pulse 1.2s infinite; }
.mic-fab-btn.coached-ring{animation:micRing 2s ease-out infinite}
.mic-fab-hint{ font-size:11px; color:var(--muted); white-space:nowrap; background:rgba(255,255,255,.92); padding:3px 10px; border-radius:10px; font-weight:500; pointer-events:none; }

/* ── bottom sheets (shared by scan sheet, summary sheet, welcome overlay, etc.) ── */
.sheet-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:100;display:none;align-items:flex-end}
.sheet-overlay.open{display:flex}
.sheet{background:var(--surface);border-radius:24px 24px 0 0;width:100%;max-height:92vh;overflow-y:auto;padding:20px 20px calc(24px + env(safe-area-inset-bottom));animation:slideUp .25s ease}
.sheet-handle{width:40px;height:4px;border-radius:2px;background:var(--border);margin:0 auto 18px}
.sheet h2{font-size:17px;font-weight:800;margin-bottom:16px}

/* ── toast ── */
.toast{ position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--text);color:#fff;padding:10px 20px;border-radius:20px;font-size:13px;font-weight:500;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:300;white-space:nowrap }
.toast.show{ opacity:1;transform:translateX(-50%) translateY(0) }