/* Diabetes Lifestyle Management — mobile-first, hand-written CSS. No frameworks. */
:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1c2433; --muted:#6b7689;
  --brand:#2563eb; --brand-dark:#1d4ed8; --accent:#0ea5e9;
  --ok:#16a34a; --warn:#d97706; --bad:#dc2626;
  --line:#e5e9f2; --radius:14px;
  --font:"Pyidaungsu","Noto Sans Myanmar","Myanmar3",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);min-height:100vh;padding-bottom:84px}
#topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;background:linear-gradient(135deg,#1d4ed8,#2563eb);color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px}
.brand-dot{width:12px;height:12px;border-radius:50%;background:#f87171;box-shadow:0 0 0 4px rgba(248,113,113,.25)}
#topbar-right{display:flex;gap:8px;align-items:center}
#app{max-width:720px;margin:0 auto;padding:14px 14px 20px}
.loading{text-align:center;color:var(--muted);padding:60px 0}
/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:12px;
  box-shadow:0 1px 3px rgba(20,30,60,.05)}
.card h3{font-size:15px;margin-bottom:8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:linear-gradient(135deg,#eff6ff,#dbeafe);border-radius:12px;padding:12px;text-align:center}
.stat .v{font-size:22px;font-weight:800;color:var(--brand-dark)}
.stat .l{font-size:12px;color:var(--muted);margin-top:2px}
.stat.warn{background:linear-gradient(135deg,#fef3c7,#fde68a)}.stat.warn .v{color:var(--warn)}
.stat.bad{background:linear-gradient(135deg,#fee2e2,#fecaca)}.stat.bad .v{color:var(--bad)}
.stat.ok{background:linear-gradient(135deg,#dcfce7,#bbf7d0)}.stat.ok .v{color:var(--ok)}
/* quick log */
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}
.quick button{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:10px 4px;
  font-family:var(--font);font-size:12px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px}
.quick button .e{font-size:20px}
.quick button:active{transform:scale(.96)}
/* forms */
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--font);font-size:15px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--brand)}
textarea{min-height:80px;resize:vertical}
.row{display:flex;gap:8px}.row>*{flex:1}
.btn{display:inline-block;border:none;border-radius:10px;padding:11px 18px;font-family:var(--font);
  font-size:15px;font-weight:700;cursor:pointer;background:var(--brand);color:#fff;text-align:center}
.btn:active{transform:scale(.98)}
.btn.block{width:100%;margin-top:12px}
.btn.ghost{background:#eef2ff;color:var(--brand-dark)}
.btn.danger{background:var(--bad)}
.btn.small{padding:7px 12px;font-size:13px}
.linklike{background:none;border:none;color:var(--brand);font-family:var(--font);font-size:14px;cursor:pointer;padding:4px}
/* lists */
.item{display:flex;align-items:center;gap:10px;padding:10px 4px;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:none}
.item .grow{flex:1;min-width:0}
.item .sub{font-size:12px;color:var(--muted)}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;background:#eef2ff;color:var(--brand-dark)}
.badge.ok{background:#dcfce7;color:#166534}.badge.warn{background:#fef3c7;color:#92400e}.badge.bad{background:#fee2e2;color:#991b1b}
.badge.emg{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}
/* bottom nav */
#bottomnav{position:fixed;bottom:0;left:0;right:0;z-index:50;background:#fff;border-top:1px solid var(--line);
  display:flex;padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
#bottomnav a{flex:1;text-align:center;text-decoration:none;color:var(--muted);font-size:11px;padding:4px 2px;
  display:flex;flex-direction:column;align-items:center;gap:2px}
#bottomnav a .e{font-size:20px}
#bottomnav a.active{color:var(--brand-dark);font-weight:700}
/* menu list */
.menu{display:grid;gap:10px}
.menu a{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px;text-decoration:none;color:var(--ink);font-weight:600}
.menu a .e{font-size:22px}
/* charts */
.chart{width:100%;height:auto;display:block;background:#fbfcff;border:1px solid var(--line);border-radius:10px}
/* modal */
#modal-root:empty{display:none}
.modal-back{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:520px;width:100%;max-height:86vh;overflow:auto;padding:20px}
.modal h2{font-size:18px;margin-bottom:10px}
.modal p{font-size:14px;line-height:1.7;margin-bottom:10px;color:#334155}
/* misc */
.pagehead{display:flex;align-items:center;justify-content:space-between;margin:4px 0 12px}
.pagehead h2{font-size:19px}
.muted{color:var(--muted);font-size:13px}
.mt{margin-top:12px}.mb{margin-bottom:12px}
.center{text-align:center}
.alert{border-radius:12px;padding:12px;margin-bottom:12px;font-size:14px;line-height:1.6}
.alert.info{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af}
.alert.warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e}
.alert.bad{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.kv{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--line);font-size:14px}
.kv:last-child{border:none}
.kv .k{color:var(--muted)}
.tabs{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}
.tabs button{border:1px solid var(--line);background:#fff;border-radius:20px;padding:7px 14px;font-family:var(--font);font-size:13px;cursor:pointer}
.tabs button.active{background:var(--brand);color:#fff;border-color:var(--brand)}
table.rep{width:100%;border-collapse:collapse;font-size:13px}
table.rep th,table.rep td{border:1px solid var(--line);padding:7px 8px;text-align:left}
table.rep th{background:#f1f5f9}
.food-hit{padding:10px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;cursor:pointer;background:#fff}
.food-hit:active{background:#eff6ff}
.searchbar{position:sticky;top:56px;z-index:20;background:var(--bg);padding:8px 0}
/* print */
#print-area{display:none}
@media print{
  #topbar,#bottomnav,.noprint,#app .noprint{display:none!important}
  body{padding:0;background:#fff}
  #print-area{display:block!important;max-width:100%}
  #app{display:none}
}
@media(min-width:720px){
  .quick{grid-template-columns:repeat(4,1fr)}
}