:root{
  --bg:#f7f7f5; --surface:#fff; --text:#1c1c1a; --muted:#6b6b66; --border:#e7e7e3;
  --green:#16a34a; --green-d:#15803d;
  --exp:#dc2626; --exp-bg:#fee2e2; --soon:#b45309; --soon-bg:#fef3c7; --fresh:#15803d; --fresh-bg:#dcfce7;
  --radius:14px; --shadow:0 1px 2px rgba(0,0,0,.05),0 4px 16px rgba(0,0,0,.04);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.45;
  padding-top:env(safe-area-inset-top);
}
main{max-width:600px;margin:0 auto;padding:16px}
main.with-nav{padding-bottom:84px}
main.auth-main{padding-top:24px}
h1,h2,h3{margin:0 0 .5rem}
h2.ph{font-size:1.3rem;margin:4px 4px 14px}
a{color:var(--green);text-decoration:none}
.muted{color:var(--muted);font-size:.86rem}
.center{text-align:center}

/* topbar */
.topbar{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:12px 16px;gap:10px}
.topbar .brand{font-weight:700}
.topbar .group-name{color:var(--muted);font-size:.86rem;max-width:50%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* bottom nav */
.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--surface);
  border-top:1px solid var(--border);display:flex;justify-content:space-around;
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));}
.navitem{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);
  font-size:.68rem;padding:4px 10px;border-radius:10px;min-width:56px}
.navitem .ico{font-size:1.2rem;line-height:1}
.navitem.on{color:var(--green)}

/* cards & forms */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;margin:0 0 16px;box-shadow:var(--shadow)}
.card h3{font-size:1rem}
label{display:block;font-size:.84rem;color:var(--muted);margin:0 0 12px}
input[type=email],input[type=password],input[type=text],input[type=date],input[type=number]{
  width:100%;margin-top:5px;padding:11px 12px;border:1px solid var(--border);border-radius:10px;
  font-size:16px;background:#fff;color:var(--text)}
input:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--fresh-bg)}
button{font-family:inherit;font-size:.95rem;cursor:pointer;border:none;border-radius:10px;padding:11px 16px}
button.primary{background:var(--green);color:#fff;font-weight:600}
button.primary:active{background:var(--green-d)}
button.ghost{background:#fff;border:1px solid var(--border);color:var(--text)}
button.block,a.block{display:block;width:100%;text-align:center;margin-top:8px}
a.primary{background:var(--green);color:#fff;font-weight:600;padding:11px 16px;border-radius:10px}
a.ghost{background:#fff;border:1px solid var(--border);color:var(--text);padding:11px 16px;border-radius:10px}
.small{font-size:.8rem;padding:7px 10px}
.inline{display:flex;gap:8px;align-items:center}
.inline input{margin-top:0}
form.inline{flex-wrap:wrap}

/* auth hero */
.hero{text-align:center;margin:10px 0 22px}
.hero .logo,.card .logo{font-size:2.6rem}
.hero h1{font-size:1.8rem;margin:6px 0 2px}
.hero .tag{color:var(--muted)}
.tabs{display:flex;background:#f0f0ec;border-radius:10px;padding:4px;margin-bottom:16px}
.tab{flex:1;text-align:center;padding:8px;border-radius:8px;color:var(--muted);font-weight:600}
.tab.on{background:#fff;color:var(--text);box-shadow:var(--shadow)}

.alert{border-radius:10px;padding:10px 12px;margin-bottom:14px;font-size:.9rem}
.alert.ok{background:var(--fresh-bg);color:var(--fresh)}
.alert.err{background:var(--exp-bg);color:var(--exp)}

/* add box */
.addbox details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:16px}
.addbox summary{padding:14px 18px;font-weight:600;cursor:pointer;list-style:none}
.addbox summary::-webkit-details-marker{display:none}
.addform{padding:0 18px 18px}
.seg{display:flex;gap:8px;margin:4px 0 12px}
.seg-opt{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;margin:0;
  padding:9px;border:1px solid var(--border);border-radius:10px;font-size:.9rem;color:var(--text);cursor:pointer}
.seg-opt:has(input:checked){border-color:var(--green);background:var(--fresh-bg);color:var(--fresh);font-weight:600}
.seg-opt input{accent-color:var(--green)}
.field{margin-bottom:10px}
.mode-fields[hidden]{display:none}

/* summary pills */
.summary{display:flex;gap:8px;flex-wrap:wrap;margin:2px 2px 14px}
.pill{font-size:.82rem;font-weight:600;padding:6px 12px;border-radius:999px}
.pill.expired{background:var(--exp-bg);color:var(--exp)}
.pill.soon{background:var(--soon-bg);color:var(--soon)}
.pill.fresh{background:var(--fresh-bg);color:var(--fresh)}
.all-good .pill{font-weight:500}

#enable-alerts{margin-bottom:14px}
#enable-alerts[hidden]{display:none}

/* items */
ul.items{list-style:none;margin:0;padding:0}
.item{background:var(--surface);border:1px solid var(--border);border-left-width:4px;border-radius:12px;
  padding:12px 14px;margin-bottom:10px;display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.item.expired{border-left-color:var(--exp)}
.item.soon{border-left-color:var(--soon)}
.item.fresh{border-left-color:var(--fresh)}
.item.none{border-left-color:var(--border)}
.item.consumed,.item.discarded{border-left-color:var(--border);opacity:.85}
.item-name{font-weight:600}
.item-sub{font-size:.8rem;color:var(--muted);margin-top:2px}
.item-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0}
.badge{font-size:.74rem;font-weight:700;padding:3px 8px;border-radius:999px;white-space:nowrap}
.badge.expired{background:var(--exp-bg);color:var(--exp)}
.badge.soon{background:var(--soon-bg);color:var(--soon)}
.badge.fresh{background:var(--fresh-bg);color:var(--fresh)}
.badge.none{background:#f0f0ec;color:var(--muted)}
.item-actions{display:flex;gap:6px}
.item-actions form{margin:0}
.chip{background:#f0f0ec;color:var(--text);font-size:.78rem;padding:6px 10px;border-radius:8px}
.chip.ok{background:var(--fresh-bg);color:var(--fresh)}
.chip.bad{background:var(--exp-bg);color:var(--exp)}

.members{list-style:none;margin:0 0 12px;padding:0}
.members li{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-bottom:1px solid var(--border)}
.members li:last-child{border-bottom:none}
.role{font-size:.72rem;color:var(--muted);background:#f0f0ec;padding:2px 8px;border-radius:999px}
.grow span:first-child{display:flex;align-items:center;gap:8px}

.invite{display:flex;gap:8px;margin-bottom:10px}
.invite input{margin-top:0;font-size:.82rem}

.empty{text-align:center;color:var(--muted);padding:40px 20px}

/* offline + install */
.offline-banner{position:sticky;top:0;z-index:30;background:var(--soon-bg);color:var(--soon);
  font-size:.82rem;text-align:center;padding:8px 12px;border-bottom:1px solid #fde68a;margin:-16px -16px 14px}
.offline-banner.flash{animation:flash .3s ease}
@keyframes flash{from{transform:scale(.98);opacity:.6}to{transform:scale(1);opacity:1}}
body.offline .addbox,body.offline .item-actions{opacity:.5}
.install-bar{position:fixed;left:12px;right:12px;bottom:calc(16px + env(safe-area-inset-bottom));z-index:25;
  background:var(--text);color:#fff;border-radius:12px;padding:10px 12px 10px 16px;display:flex;align-items:center;
  justify-content:space-between;gap:8px;box-shadow:0 6px 24px rgba(0,0,0,.18);max-width:600px;margin:0 auto}
.with-nav ~ .install-bar,body:has(.bottomnav) .install-bar{bottom:calc(74px + env(safe-area-inset-bottom))}
.install-bar span{font-size:.88rem}
.install-bar button{border:none;cursor:pointer}
.install-bar button:not(.x){background:var(--green);color:#fff;font-weight:600;border-radius:8px;padding:8px 14px;font-size:.85rem}
.install-bar .x{background:transparent;color:#cbd5c0;font-size:1.2rem;line-height:1;padding:4px 6px}

/* toast */
.toast{position:fixed;left:50%;bottom:calc(82px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(16px);
  z-index:40;background:var(--text);color:#fff;padding:11px 16px;border-radius:10px;font-size:.86rem;
  max-width:88%;text-align:center;box-shadow:0 6px 24px rgba(0,0,0,.22);opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}