:root{
  --bleu:#0B3D91; --bleu-2:#0a347d; --bleu-d:#072a63; --bleu-ink:#0e2a5e;
  --ambre:#F0A808; --ambre-2:#ffbe2e; --ambre-d:#c98a04;
  --bg:#eef1f7; --bg-2:#f7f9fc; --card:#ffffff; --ink:#15203a; --muted:#6c7795;
  --ok:#1f9d55; --bad:#e0443f; --line:#e6eaf3;
  --r:16px; --r-sm:11px;
  --sh:0 1px 2px rgba(11,61,145,.05), 0 6px 20px rgba(11,61,145,.07);
  --sh-lg:0 10px 34px rgba(11,61,145,.16);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:
    radial-gradient(1200px 480px at 50% -180px, rgba(11,61,145,.10), transparent 60%),
    var(--bg);
  color:var(--ink);font-size:16px;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility}
#app{min-height:100%;display:flex;flex-direction:column;max-width:720px;margin:0 auto;
  background:var(--bg-2);box-shadow:0 0 60px rgba(11,61,145,.06)}

/* splash */
.splash{flex:1;display:grid;place-items:center;
  background:linear-gradient(160deg,var(--bleu),var(--bleu-d))}
.logo{font-weight:800;font-size:38px;letter-spacing:.5px;color:#fff;text-align:center;
  text-shadow:0 2px 14px rgba(0,0,0,.18)}
.logo span{display:block;color:var(--ambre);font-size:15px;letter-spacing:6px;margin-top:6px}

/* header */
header.app{position:sticky;top:0;z-index:5;color:#fff;
  background:linear-gradient(135deg,var(--bleu),var(--bleu-2));
  padding:calc(env(safe-area-inset-top) + 12px) 16px 12px;
  border-bottom:3px solid var(--ambre);box-shadow:0 6px 20px rgba(7,32,75,.22)}
header.app .row{display:flex;align-items:center;gap:10px;justify-content:space-between}
header.app .brand{font-weight:800;letter-spacing:.4px;font-size:18px}
header.app .brand b{color:var(--ambre);font-weight:800}
header.app select{appearance:none;background:rgba(255,255,255,.14);color:#fff;
  border:1px solid rgba(255,255,255,.28);border-radius:10px;padding:8px 30px 8px 12px;
  font-size:14px;font-weight:600;max-width:62%;
  background-image:linear-gradient(45deg,transparent 50%,#fff 50%),linear-gradient(135deg,#fff 50%,transparent 50%);
  background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat}
header.app select:disabled{opacity:.85}
header.app select option{color:#000}
header.app #who{color:rgba(255,255,255,.85);font-weight:600;font-size:12px;
  text-transform:capitalize}
.syncpill{font-size:12px;font-weight:700;padding:5px 11px;border-radius:30px;
  background:rgba(255,255,255,.18);display:inline-flex;align-items:center;gap:6px}
.syncpill::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff;opacity:.9}
.syncpill.on{background:rgba(31,157,85,.95)} .syncpill.off{background:rgba(255,255,255,.22)}
.syncpill.err{background:var(--bad)}

/* layout */
main{flex:1;padding:16px;padding-bottom:88px;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;margin-bottom:14px;box-shadow:var(--sh)}
h2.title{margin:0 0 12px;font-size:19px;font-weight:800;letter-spacing:-.2px}
.muted{color:var(--muted)} .small{font-size:13px}
.right{text-align:right} .b{font-weight:700}

/* nav */
nav.tabs{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:720px;
  background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-top:1px solid var(--line);display:flex;
  padding-bottom:env(safe-area-inset-bottom);z-index:6;box-shadow:0 -6px 20px rgba(11,61,145,.06)}
nav.tabs a{flex:1;text-align:center;padding:10px 2px 9px;color:var(--muted);
  text-decoration:none;font-size:11px;font-weight:600;position:relative;transition:color .15s}
nav.tabs a .ic{display:block;font-size:21px;line-height:1.2;filter:grayscale(.4);opacity:.7}
nav.tabs a.active{color:var(--bleu)}
nav.tabs a.active .ic{filter:none;opacity:1}
nav.tabs a.active::after{content:"";position:absolute;top:2px;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:3px;background:var(--ambre)}

/* forms / buttons */
input,select,textarea,button{font:inherit}
.field{display:block;margin-bottom:12px}
.field span{display:block;font-size:13px;color:var(--muted);margin-bottom:5px;font-weight:600}
input,select,textarea{width:100%;padding:12px 13px;border:1.5px solid var(--line);
  border-radius:var(--r-sm);background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ambre);
  box-shadow:0 0 0 3px rgba(240,168,8,.18)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border:0;border-radius:var(--r-sm);padding:13px 15px;font-weight:700;cursor:pointer;width:100%;
  transition:transform .08s,box-shadow .15s,filter .15s;letter-spacing:.2px}
.btn:active{transform:translateY(1px) scale(.995)}
.btn.primary{background:linear-gradient(135deg,var(--bleu),var(--bleu-2));color:#fff;
  box-shadow:0 6px 16px rgba(11,61,145,.28)}
.btn.amber{background:linear-gradient(135deg,var(--ambre-2),var(--ambre));color:#3a2a00;
  box-shadow:0 6px 16px rgba(240,168,8,.30)}
.btn.ghost{background:#eef2fa;color:var(--bleu)}
.btn.danger{background:#fdeaea;color:var(--bad)}
.btn.sm{width:auto;padding:9px 13px;font-size:14px;border-radius:9px}
.btn:disabled{opacity:.5}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* product grid (ventes) */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:11px}
.ptile{background:linear-gradient(180deg,#fff,#fbfcff);border:1px solid var(--line);
  border-radius:14px;padding:12px;text-align:left;cursor:pointer;box-shadow:var(--sh);
  transition:transform .08s,box-shadow .15s;position:relative;overflow:hidden}
.ptile::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--ambre);opacity:.85}
.ptile:active{transform:scale(.96)}
.ptile .nm{font-weight:700;font-size:14px;line-height:1.2;padding-left:4px}
.ptile .pr{color:var(--bleu);font-weight:800;margin-top:8px;padding-left:4px;font-size:16px}
.ptile .st{font-size:11px;color:var(--muted);padding-left:4px;margin-top:2px}
.ptile.out{opacity:.5}.ptile.out::before{background:var(--bad)}

/* cart */
.line{display:flex;justify-content:space-between;align-items:center;
  padding:11px 0;border-bottom:1px solid var(--line)}
.line:last-child{border-bottom:0}
.qty{display:flex;align-items:center;gap:9px}
.qty button{width:32px;height:32px;border-radius:9px;border:1.5px solid var(--line);
  background:#fff;font-size:18px;font-weight:800;color:var(--bleu);cursor:pointer;line-height:1}
.qty button:active{background:#eef2fa}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0}
.chip{padding:9px 13px;border-radius:30px;border:1.5px solid var(--line);background:#fff;
  font-size:13px;font-weight:600;cursor:pointer;transition:.12s}
.chip.sel{background:linear-gradient(135deg,var(--bleu),var(--bleu-2));color:#fff;border-color:transparent;
  box-shadow:0 4px 12px rgba(11,61,145,.25)}

.kpi{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.kpi .box{background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid var(--line);
  border-radius:13px;padding:13px;box-shadow:var(--sh)}
.kpi .box .v{font-size:23px;font-weight:800;color:var(--bleu);letter-spacing:-.5px}
.kpi .box .l{font-size:12px;color:var(--muted);margin-top:2px;font-weight:600}
.badge{font-size:11px;padding:3px 9px;border-radius:30px;background:#eaf0fb;color:var(--bleu);
  font-weight:700;vertical-align:middle}
.badge.red{background:#fdeaea;color:var(--bad)}
.list .line .sub{font-size:12px;color:var(--muted);margin-top:2px}

/* toast */
.toast{position:fixed;left:50%;bottom:98px;transform:translateX(-50%) translateY(20px);
  background:#15203a;color:#fff;padding:12px 18px;border-radius:12px;opacity:0;
  transition:.25s cubic-bezier(.2,.8,.2,1);z-index:40;pointer-events:none;font-size:14px;
  font-weight:600;max-width:90%;box-shadow:var(--sh-lg)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:linear-gradient(135deg,#23a85c,var(--ok))}
.toast.err{background:linear-gradient(135deg,#e9534e,var(--bad))}

/* auth */
.center{min-height:80vh;display:grid;place-items:center;padding:18px}
.auth{width:100%;border-radius:20px;box-shadow:var(--sh-lg);padding:22px}
.auth .logo{color:var(--bleu);text-shadow:none}.auth .logo span{color:var(--ambre)}
.switch{text-align:center;margin-top:14px;color:var(--muted);font-size:14px}
.switch a{color:var(--bleu);font-weight:700;text-decoration:none}
.empty{text-align:center;color:var(--muted);padding:28px 10px;font-size:14px}

/* barre total collante */
.totbar{position:sticky;bottom:90px;border-radius:14px;
  background:linear-gradient(135deg,var(--bleu),var(--bleu-2));color:#fff;
  padding:14px 16px;display:flex;justify-content:space-between;align-items:center;margin-top:12px;
  box-shadow:var(--sh-lg)}
.totbar .t{font-size:24px;font-weight:800;letter-spacing:-.5px}