:root{
  --ink:#1a1a1a; --muted:#6b6b6b; --line:#d9d9d9; --soft:#f2f2f2; --bg:#fff;
  --radius:20px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Arial,sans-serif;
  font-size:17px;line-height:1.35}
#app{max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
main{flex:1;padding:calc(env(safe-area-inset-top) + 14px) 20px 110px}
button{font:inherit;color:inherit;cursor:pointer}

/* top bar */
.top{display:flex;justify-content:space-between;align-items:center;gap:12px}
.who{display:flex;align-items:center;gap:10px;min-height:48px;padding:0 16px 0 8px;
  border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:600}
.avatar{width:34px;height:34px;border-radius:50%;background:#d9d9d9;display:grid;place-items:center;font-weight:600}
.pill{background:var(--soft);color:#444;border-radius:12px;padding:8px 14px;font-size:15px;font-weight:600}
.link{background:none;border:0;padding:12px 4px;min-height:44px;font-weight:600;text-decoration:underline}

h1{font-size:38px;line-height:1.1;margin:4px 0 0;letter-spacing:-.02em}
.sub{color:var(--muted);margin-top:18px}
h2{font-size:22px;margin:28px 0 12px}

/* cards */
.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:12px;background:#fff}
.card.soft{background:var(--soft);border-color:var(--soft)}
.card.dashed{border-style:dashed}
.muted{color:var(--muted)}
.small{font-size:15px}
.row{display:flex;justify-content:space-between;align-items:center;gap:12px}
.big{font-size:30px;font-weight:700}
.bar{height:12px;background:#d9d9d9;border-radius:999px;margin:10px 0 18px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--ink);border-radius:999px}

.btn{min-height:48px;padding:0 20px;border:1px solid var(--line);border-radius:16px;background:#fff;font-weight:600}

/* recipes */
details.card summary{list-style:none;cursor:pointer;min-height:44px;display:flex;flex-direction:column;justify-content:center}
details.card summary::-webkit-details-marker{display:none}
details.card .name{font-weight:700;font-size:18px}
table{width:100%;border-collapse:collapse;margin-top:12px;font-size:14px}
th,td{text-align:right;padding:6px 3px;border-bottom:1px solid var(--soft)}
th:first-child,td:first-child{text-align:left}
th{color:var(--muted);font-weight:600}
tfoot td{font-weight:700;border-bottom:0}

/* tab bar */
nav{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom)}
nav .in{max-width:520px;margin:0 auto;display:flex}
nav button{flex:1;min-height:64px;background:none;border:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;color:var(--muted);font-size:13px;font-weight:500}
nav button.on{color:var(--ink);font-weight:700}
nav svg{width:30px;height:30px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
nav svg text{fill:currentColor;stroke:none;font-size:9px;font-weight:700;text-anchor:middle}

/* stage 2: Today */
.phase{display:inline-block;margin-top:10px;background:var(--soft);border-radius:12px;padding:6px 12px;font-size:15px;font-weight:600}
.grow{flex:1;min-width:0}
.meal{display:flex;align-items:center;gap:12px}
.mname{font-weight:700;font-size:18px;line-height:1.25}
.btns{display:flex;flex-direction:column;gap:6px}
.btn.sm{min-height:44px;min-width:64px;padding:0 14px}
.btn.soft{background:var(--soft);border-color:var(--soft)}
.btn.primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.full{width:100%;margin-top:16px}
.check{flex:none;width:44px;height:44px;border-radius:12px;border:2px solid #999;background:#fff;font-size:26px;font-weight:700;color:#fff;line-height:1}
.check.on{background:#1f6feb;border-color:#1f6feb}
.tag{background:#fff3cd;color:#7a5b00;border-radius:8px;padding:1px 7px;font-size:12px;font-weight:600;vertical-align:middle}
.x{background:none;border:0;min-width:44px;min-height:44px;color:var(--muted);font-size:16px}
.big.warn{color:#b3261e}
.center{text-align:center}
.who{font:inherit}

.overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:flex-end;justify-content:center;z-index:10}
.sheet{position:relative;background:#fff;width:100%;max-width:520px;max-height:88vh;overflow:auto;
  border-radius:24px 24px 0 0;padding:22px 20px calc(env(safe-area-inset-bottom) + 24px)}
.sheet h2{margin:0 0 8px}
.close{position:absolute;top:8px;right:8px;width:44px;height:44px;background:none;border:0;font-size:20px;color:var(--muted)}
.opt{display:block;width:100%;text-align:left;min-height:56px;padding:12px 16px;margin:8px 0;border:1px solid var(--line);border-radius:16px;background:#fff}
.opt.on{border-color:var(--ink);border-width:2px}
.stepper{display:flex;align-items:center;justify-content:center;gap:28px;margin:20px 0 8px}
.stepper .btn{width:64px;font-size:28px}
label{display:block;margin-top:14px;font-weight:600;font-size:15px}
input{display:block;width:100%;min-height:48px;margin-top:6px;padding:0 14px;border:1px solid var(--line);border-radius:14px;font:inherit;font-size:17px;background:#fff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}

/* stage 3: sign-in, profile */
.authmain{padding:calc(env(safe-area-inset-top) + 48px) 24px 40px;flex:1}
.toast{position:fixed;left:16px;right:16px;bottom:calc(env(safe-area-inset-bottom) + 84px);max-width:488px;margin:0 auto;
  background:var(--ink);color:#fff;border-radius:14px;padding:14px 18px;z-index:20;font-size:15px}
.code{font-size:40px;font-weight:700;letter-spacing:.18em;margin-top:6px}
.sr{margin-top:0}
.btn:disabled{opacity:.6}
code{background:var(--soft);padding:1px 6px;border-radius:6px}

/* stage 4: Weight */
.seg{display:flex;background:var(--soft);border-radius:14px;padding:4px;margin:12px 0}
.seg button{flex:1;min-height:44px;border:0;background:none;border-radius:11px;font-weight:600;color:var(--muted)}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.chart{width:100%;height:auto;display:block}
.chart text{font-size:10px;fill:#6b6b6b}
.ch-grid{stroke:#e3e3e3;stroke-width:1}
.ch-dot{fill:#9a9a9a}
.ch-line{fill:none;stroke:var(--ink);stroke-width:2.6;stroke-linejoin:round;stroke-linecap:round}
.legend{display:flex;gap:18px;font-size:14px;color:var(--muted);margin:6px 0 0 4px}
.legend i{display:inline-block;vertical-align:middle;margin-right:6px}
.ld{width:9px;height:9px;border-radius:50%;background:#9a9a9a}
.ll{width:18px;height:3px;border-radius:2px;background:var(--ink)}
.entry{display:flex;justify-content:space-between;align-items:center;width:100%;min-height:52px;padding:10px 4px;
  background:none;border:0;border-bottom:1px solid var(--soft);text-align:left;font-size:16px}

/* stage 5: Products */
.back{padding-left:0;text-decoration:none;font-size:17px;margin-top:6px}
.chips{display:flex;gap:8px;overflow-x:auto;padding:12px 0 8px;margin:0 -4px}
.chip{flex:none;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:600}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.pcard{display:flex;flex-direction:column;gap:2px;width:100%;text-align:left;padding:12px 4px;min-height:64px;background:none;border:0;border-bottom:1px solid var(--soft)}
.prow{display:flex;justify-content:space-between;gap:12px;font-size:17px}
.kc{white-space:nowrap}
select{display:block;width:100%;min-height:48px;margin-top:6px;padding:0 10px;border:1px solid var(--line);border-radius:14px;font:inherit;font-size:17px;background:#fff}

/* stage 6: recipes */
.linkish{background:none;border:0;padding:0;min-height:0;text-align:left;font:inherit;font-weight:700;font-size:18px;line-height:1.25;color:var(--ink);text-decoration:underline;text-decoration-color:#bbb;text-underline-offset:3px}
.tag.ok{background:#dff3e4;color:#17602b}
.chg{font-weight:700}
.comment{border-bottom:1px solid var(--soft);padding:10px 0}
textarea{display:block;width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--line);border-radius:14px;font:inherit;font-size:17px;background:#fff;line-height:1.4}
.instr{white-space:pre-line;line-height:1.5}

/* stage 6b: editor */
.inl{padding:0 6px;min-height:44px;font-size:15px}
.erow .grid2{margin-top:6px}
.erow summary{min-height:44px;display:flex;align-items:center;cursor:pointer}