/* ============================================================
   FUEL SHIFT - design system
   Mobile-first. Plain CSS, no framework.
   ============================================================ */

:root{
  color-scheme: dark;
  /* surfaces */
  --bg:#07080c;
  --bg-2:#0b0d13;
  --card:rgba(255,255,255,.035);
  --card-2:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.085);
  --line-2:rgba(255,255,255,.14);

  /* text */
  --tx:#f2f4f8;
  --tx-2:#a5adbd;
  --tx-3:#6b7385;

  /* fuel palette */
  --blood:#58E7F2;
  --blood-d:#1f8f99;
  --liver:#FFB43D;
  --liver-d:#a06612;
  --muscle:#A98CFF;
  --muscle-d:#5b45a8;
  --fat:#FF7A45;
  --fat-d:#a3401b;

  /* semantic */
  --good:#3FD68C;
  --warn:#FFC24D;
  --bad:#FF6B6B;
  --accent:#FFB43D;

  --r:18px;
  --r-sm:12px;
  --r-lg:26px;
  --shadow:0 10px 40px -12px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.9,.28,1);
  --pad:16px;
  --maxw:540px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--tx);
  font:400 15px/1.5 var(--font);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overscroll-behavior-y:none; min-height:100dvh;
  padding-env: 0;
}
body.booting *{transition:none !important}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
canvas{display:block;width:100%}
[hidden]{display:none !important}

.bg-glow{
  position:fixed; inset:0; pointer-events:none; z-index:0;
  background:
    radial-gradient(720px 420px at 50% -12%, rgba(255,180,61,.13), transparent 62%),
    radial-gradient(560px 400px at 92% 8%, rgba(169,140,255,.10), transparent 60%),
    radial-gradient(620px 460px at 4% 92%, rgba(88,231,242,.07), transparent 62%);
}

.screen{display:none;position:relative;z-index:1}
.screen.is-on{display:block}

/* ---------------- typography helpers ---------------- */
.eyebrow{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--tx-3);font-weight:600}
.lede{color:var(--tx-2);margin-top:8px;font-size:14.5px;line-height:1.55}
.hint{color:var(--tx-3);font-size:12.5px;line-height:1.55;margin-top:10px}
.legal{color:var(--tx-3);font-size:11.5px;line-height:1.6;text-align:center;padding:18px var(--pad) 6px;max-width:var(--maxw);margin:0 auto}
.dim{color:var(--tx-3)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 20px;border-radius:14px;font-weight:600;font-size:15px;
  transition:transform .14s var(--ease),background .18s,opacity .18s;
  border:1px solid transparent; min-height:50px;
}
.btn:active{transform:scale(.975)}
.btn:disabled{opacity:.4;pointer-events:none}
.btn-primary{background:linear-gradient(180deg,#FFC768,#FF9E2B);color:#231400;box-shadow:0 6px 22px -8px rgba(255,168,45,.65)}
.btn-ghost{background:var(--card-2);border-color:var(--line);color:var(--tx)}
.btn-danger-ghost{background:transparent;border-color:rgba(255,107,107,.3);color:#FF8B8B;margin-top:8px}
.btn-block{display:flex;width:100%}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:12px;
  background:var(--card);border:1px solid var(--line);color:var(--tx-2);font-size:20px;line-height:1;
}
.icon-btn:active{background:var(--card-2)}
/* The refresh call usually returns in well under a tenth of a second, so the
   spin is held for a beat, otherwise the button looks like it did nothing. */
.icon-btn.spin svg{animation:spin .75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.icon-btn.spin{color:var(--accent);border-color:rgba(255,180,61,.4)}
.link-btn{color:var(--accent);font-size:13px;font-weight:600;
  padding:9px 10px;margin:-9px -10px;border-radius:10px;min-height:38px}
.link-btn:active{background:var(--card-2)}

/* ---------------- form controls ---------------- */
.field{display:block;margin-top:14px}
.field>span{display:block;font-size:12.5px;color:var(--tx-2);margin-bottom:7px;font-weight:550}
.field>span em{color:var(--tx-3);font-style:normal}
.field input[type=text],.field input[type=email],.field input[type=password],
.field input[type=number],.field input[type=time],.field input[type=datetime-local],
.field select,.search{
  width:100%;padding:13px 14px;border-radius:13px;
  background:var(--card-2);border:1px solid var(--line);color:var(--tx);
  font-size:16px; outline:none; transition:border-color .18s,background .18s;
  -webkit-appearance:none;appearance:none;
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--tx-3) 50%),linear-gradient(135deg,var(--tx-3) 50%,transparent 50%);
  background-position:calc(100% - 19px) 22px,calc(100% - 14px) 22px;background-size:5px 5px;background-repeat:no-repeat}
input:focus,select:focus,.search:focus{border-color:rgba(255,180,61,.55);background:var(--card-2)}
input::placeholder{color:var(--tx-3)}
.field-row{display:flex;flex-wrap:wrap;gap:10px}
.field-row>*{flex:1 1 96px;min-width:0}
.search{margin-bottom:12px}

.chipset{display:flex;flex-wrap:wrap;gap:7px}
.chip{
  min-height:38px;padding:9px 13px;border-radius:11px;font-size:13px;font-weight:550;
  background:var(--card);border:1px solid var(--line);color:var(--tx-2);
  transition:all .16s var(--ease);
}
.chip.is-on{background:rgba(255,180,61,.14);border-color:rgba(255,180,61,.5);color:var(--accent)}
.chip:active{transform:scale(.96)}
.chipset.sm .chip{padding:8px 11px;min-height:36px;font-size:12px}

.seg{display:flex;gap:4px;padding:4px;background:var(--card);border:1px solid var(--line);border-radius:14px}
.seg-btn{flex:1;min-height:38px;padding:9px 6px;border-radius:10px;font-size:13px;font-weight:600;color:var(--tx-3);transition:all .18s var(--ease)}
.seg-btn.is-on{background:var(--card-2);color:var(--tx);box-shadow:0 1px 0 rgba(255,255,255,.05) inset}
.seg-sm{margin:14px 0}
.seg-sm .seg-btn{font-size:12.5px;padding:8px 4px}
.seg-xs{padding:3px}
.seg-xs .seg-btn{font-size:11.5px;padding:8px 11px;min-height:34px;flex:0 0 auto}

.opt-list{display:flex;flex-direction:column;gap:9px;margin-top:14px}
.opt{
  text-align:left;padding:14px 15px;border-radius:15px;
  background:var(--card);border:1px solid var(--line);
  transition:all .18s var(--ease);
}
.opt b{display:block;font-size:14.5px;font-weight:600}
.opt span{display:block;font-size:12.5px;color:var(--tx-3);margin-top:3px;line-height:1.45}
.opt.is-on{background:rgba(255,180,61,.10);border-color:rgba(255,180,61,.45)}
.opt.is-on b{color:var(--accent)}
.opt:active{transform:scale(.985)}
.opt-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.opt-grid .opt{text-align:center;font-size:13.5px;font-weight:600;padding:15px 8px}

.slider{
  -webkit-appearance:none;appearance:none;display:block;width:100%;height:34px;
  margin:0;                 /* browsers add 2px of their own, which bleeds out of cards */
  background:transparent;outline:none;
}
.slider::-webkit-slider-runnable-track{height:6px;border-radius:99px;background:var(--card-2);border:1px solid var(--line)}
.slider::-moz-range-track{height:6px;border-radius:99px;background:var(--card-2);border:1px solid var(--line)}
.slider::-webkit-slider-thumb{
  -webkit-appearance:none;width:26px;height:26px;border-radius:50%;margin-top:-11px;
  background:linear-gradient(180deg,#FFD489,#FF9E2B);border:2px solid #1a1206;
  box-shadow:0 3px 14px -3px rgba(255,168,45,.8);
}
.slider::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:linear-gradient(180deg,#FFD489,#FF9E2B);border:2px solid #1a1206}
.slider-lg::-webkit-slider-thumb{width:32px;height:32px;margin-top:-14px}

.switch{position:relative;display:inline-block;width:46px;height:27px;flex:0 0 auto}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch i{position:absolute;inset:0;border-radius:99px;background:var(--card-2);border:1px solid var(--line);transition:.2s}
.switch i::after{content:"";position:absolute;top:3px;left:3px;width:19px;height:19px;border-radius:50%;background:var(--tx-3);transition:.2s var(--ease)}
.switch input:checked + i{background:rgba(255,180,61,.25);border-color:rgba(255,180,61,.5)}
.switch input:checked + i::after{transform:translateX(19px);background:var(--accent)}

.form-msg{font-size:13px;margin-top:12px;min-height:18px;color:var(--bad)}
.form-msg.ok{color:var(--good)}

/* ---------------- cards ---------------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;margin:12px auto;max-width:var(--maxw);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.card-quiet{background:transparent}
.card-head{display:flex;align-items:baseline;justify-content:space-between;
  gap:6px 10px;margin-bottom:12px;flex-wrap:wrap}
.card-head h3{font-size:14px;letter-spacing:.01em;flex:0 0 auto}
.card-head>*:not(h3){min-width:0}
.card-note{font-size:11.5px;color:var(--tx-3);text-align:right;flex:1 1 auto}
/* once the note can no longer sit beside the title, give it the full width */
@media (max-width:400px){
  .card-note{flex-basis:100%;text-align:left;margin-top:-2px}
}

/* ---------------- AUTH ---------------- */
.auth-wrap{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;
  padding:32px var(--pad) calc(32px + env(safe-area-inset-bottom));max-width:var(--maxw);margin:0 auto}
.brand{text-align:center;margin-bottom:26px}
.brand-mark{display:inline-grid;place-items:center;margin-bottom:12px;
  filter:drop-shadow(0 6px 22px rgba(255,150,40,.35))}
.brand h1{font-size:30px;letter-spacing:-.035em;font-weight:750}
.brand h1 .wm-b{color:#FF7A45}
.brand-mark .mark{color:#f2f4f8;overflow:visible}

.brand-sub{color:var(--tx-2);margin-top:9px;font-size:14px;line-height:1.55}
.auth-card{margin:0}
.auth-form{margin-top:16px}
.auth-form .btn{margin-top:18px}

/* ---------------- ONBOARDING ---------------- */
#scr-onboard{min-height:100dvh;display:none;flex-direction:column}
#scr-onboard.is-on{display:flex}
.ob-head{display:flex;align-items:center;gap:12px;padding:calc(12px + env(safe-area-inset-top)) var(--pad) 12px;
  max-width:var(--maxw);margin:0 auto;width:100%}
.ob-progress{flex:1;height:4px;border-radius:99px;background:var(--card-2);overflow:hidden}
.ob-progress i{display:block;height:100%;width:16.6%;border-radius:99px;
  background:linear-gradient(90deg,#FFB43D,#FF7A45);transition:width .4s var(--ease)}
.ob-count{font-size:12px;color:var(--tx-2);font-variant-numeric:tabular-nums;min-width:30px;text-align:right}
.ob-track{flex:1;overflow-y:auto;padding:8px var(--pad) 20px;max-width:var(--maxw);margin:0 auto;width:100%}
.ob-step{display:none;animation:slideIn .34s var(--ease)}
.ob-step.is-on{display:block}
.ob-step h2{font-size:25px;letter-spacing:-.03em}
@keyframes slideIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.ob-foot{padding:12px var(--pad) calc(14px + env(safe-area-inset-bottom));max-width:var(--maxw);margin:0 auto;width:100%;
  background:linear-gradient(180deg,transparent,var(--bg) 42%)}

/* body-fat picker */
.figure-stage{position:relative;height:340px;margin:18px 0 2px;display:grid;place-items:center}
.figure-layers{position:relative;width:210px;height:315px}
/* on a narrow phone, shrink the figure so the readout is not sitting on top of it */
@media (max-width:360px){
  .figure-stage{height:300px}
  .figure-layers{width:158px;height:266px}
  .figure-readout b{font-size:36px}
}
.figure-layers img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  opacity:0;transition:opacity .22s linear;
  filter:drop-shadow(0 0 26px rgba(255,180,61,.22));
}

.figure-readout{position:absolute;right:2px;top:8px;text-align:right}
.figure-readout b{font-size:42px;font-weight:700;letter-spacing:-.045em;font-variant-numeric:tabular-nums;
  background:linear-gradient(180deg,#FFD489,#FF8A2B);-webkit-background-clip:text;background-clip:text;color:transparent}
.figure-readout span{font-size:17px;color:var(--tx-3);margin-left:1px}
.figure-readout em{display:block;font-style:normal;font-size:12px;color:var(--tx-2);letter-spacing:.06em;text-transform:uppercase;margin-top:1px}
.scale-marks{position:relative;height:14px;font-size:10.5px;color:var(--tx-3);margin-top:-4px}
.scale-marks span{position:absolute;transform:translateX(-50%);white-space:nowrap}
.navy-out{margin-top:16px;padding:14px;border-radius:13px;background:var(--card-2);border:1px solid var(--line);
  text-align:center;font-size:14px;color:var(--tx-2)}
.navy-out b{font-size:26px;color:var(--accent);display:block;font-variant-numeric:tabular-nums}

/* ---------------- APP CHROME ---------------- */
#scr-main{padding-bottom:calc(74px + env(safe-area-inset-bottom))}
.view{padding-top:calc(6px + env(safe-area-inset-top));animation:fade .25s var(--ease)}
@keyframes fade{from{opacity:0}to{opacity:1}}
.app-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
  padding:14px var(--pad) 4px;max-width:var(--maxw);margin:0 auto}
.app-head h2{font-size:26px;letter-spacing:-.035em}

.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  background:rgba(9,10,15,.82);backdrop-filter:blur(22px) saturate(1.4);
  -webkit-backdrop-filter:blur(22px) saturate(1.4);
  border-top:1px solid var(--line);
}
.tab{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 0;color:var(--tx-3);
  border-radius:12px;transition:color .18s}
.tab span{font-size:10.5px;font-weight:600;letter-spacing:.01em}
.tab.is-on{color:var(--accent)}
.tab:active{background:var(--card)}

/* ---------------- state banner ---------------- */
.state-banner{
  max-width:var(--maxw);margin:10px auto 0;padding:15px 16px;border-radius:var(--r);
  border:1px solid var(--line);position:relative;overflow:hidden;
  background:var(--card);
}
.state-banner::before{content:"";position:absolute;inset:0;opacity:.16;transition:background .6s}
.state-banner[data-s="storing"]::before{background:radial-gradient(120% 100% at 0% 0%,#FF7A45,transparent 70%)}
.state-banner[data-s="mixed"]::before{background:radial-gradient(120% 100% at 0% 0%,#FFB43D,transparent 70%)}
.state-banner[data-s="shifting"]::before{background:radial-gradient(120% 100% at 0% 0%,#A98CFF,transparent 70%)}
.state-banner[data-s="burning"]::before{background:radial-gradient(120% 100% at 0% 0%,#3FD68C,transparent 70%)}
.state-banner[data-s="deep"]::before{background:radial-gradient(120% 100% at 0% 0%,#58E7F2,transparent 70%)}
.sb-top{display:flex;align-items:center;gap:9px;position:relative}
.sb-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);flex:0 0 auto;
  box-shadow:0 0 0 0 currentColor;animation:pulse 2.4s infinite}
.state-banner[data-s="storing"] .sb-dot{background:#FF7A45}
.state-banner[data-s="mixed"] .sb-dot{background:#FFB43D}
.state-banner[data-s="shifting"] .sb-dot{background:#A98CFF}
.state-banner[data-s="burning"] .sb-dot{background:#3FD68C}
.state-banner[data-s="deep"] .sb-dot{background:#58E7F2}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,180,61,.55)}70%{box-shadow:0 0 0 11px rgba(255,180,61,0)}100%{box-shadow:0 0 0 0 rgba(255,180,61,0)}}
.sb-top b{font-size:13px;letter-spacing:.11em;text-transform:uppercase;font-weight:700}
.sb-share{margin-left:auto;font-size:12px;color:var(--tx-2)}
.sb-share i{font-style:normal;font-weight:700;color:var(--tx);font-variant-numeric:tabular-nums}
.state-banner p{font-size:13.5px;color:var(--tx-2);margin-top:8px;line-height:1.5;position:relative}
.sb-advice{margin-top:11px;padding-top:11px;border-top:1px solid var(--line);font-size:13.5px;
  font-weight:550;position:relative;line-height:1.5}

/* ---------------- core canvas ---------------- */
.core-wrap{padding:8px 8px 4px;position:relative;overflow:hidden;
  background:#08090e;border-color:rgba(255,255,255,.09)}
.core-wrap .core-legend span{color:rgba(255,255,255,.42)}
.core-wrap .core-legend b{color:rgba(255,255,255,.92)}
#core{width:100%;height:auto;touch-action:pan-y}
.core-legend{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:2px 4px 6px}
.core-legend div{text-align:center}
.core-legend u{display:block;width:100%;height:2px;border-radius:2px;margin-bottom:5px}
.core-legend span{display:block;font-size:9.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--tx-3);font-weight:600}
.core-legend b{display:block;font-size:12.5px;font-variant-numeric:tabular-nums;margin-top:1px}

/* ---------------- tiles ---------------- */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:var(--maxw);margin:12px auto;padding:0 var(--pad)}
@media(min-width:560px){.tiles{padding:0}}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 14px;min-width:0;display:flex;flex-direction:column}
.tile-k{display:block;font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--tx-3);font-weight:600;line-height:1.3;min-height:2.6em}
.tile-v{display:block;font-size:23px;font-weight:660;letter-spacing:-.03em;margin-top:5px;
  font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tile-s{display:block;font-size:11.5px;color:var(--tx-3);margin-top:3px;line-height:1.4}
#tile-window.is-open .tile-v{color:var(--good)}
#tile-window.is-wait .tile-v{color:var(--liver)}
.mini-bar{display:block;height:5px;border-radius:99px;background:var(--card-2);overflow:hidden;margin-top:6px}
.mini-bar i{display:block;height:100%;border-radius:99px;
  background:linear-gradient(90deg,#FFCE7A,var(--liver));transition:width .6s linear}
.mini-row{display:block;margin-top:6px}
.mini-row em{display:block;font-style:normal;font-size:10px;color:var(--tx-3);
  white-space:nowrap;margin-bottom:4px}
.mini-bar-m{width:100%;margin-top:0;height:4px}
.mini-bar-m i{background:linear-gradient(90deg,#C6B0FF,var(--muscle))}

/* ---------------- balance ---------------- */
.balance{margin-bottom:12px}
.bal-row{display:flex;justify-content:space-between;align-items:baseline;padding:5px 0;font-size:13.5px;color:var(--tx-2)}
.bal-row b{font-size:16px;color:var(--tx);font-variant-numeric:tabular-nums;font-weight:620}
.bal-net{border-top:1px solid var(--line);margin-top:5px;padding-top:9px}
.bal-net b{font-size:19px}
.bal-net b.neg{color:var(--good)}
.bal-net b.pos{color:var(--fat)}
.bal-bar{position:relative;height:9px;border-radius:99px;background:var(--card-2);margin-top:12px;overflow:hidden}
.bal-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#FFB43D,#FF7A45);
  width:0;transition:width .9s var(--ease)}
.bal-bar u{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--tx);opacity:.55;border-radius:2px}
.bal-legend{display:flex;justify-content:space-between;font-size:11.5px;color:var(--tx-3);margin-top:7px}
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;border-top:1px solid var(--line);padding-top:12px}
.split-row span{display:block;font-size:11px;color:var(--tx-3);letter-spacing:.04em;line-height:1.35}
.split-row b{display:block;font-size:17px;font-variant-numeric:tabular-nums;margin-top:2px;font-weight:620}
.split-row div:first-child b{color:var(--good)}
.split-row div:last-child b{color:var(--fat)}

/* ---------------- charts ---------------- */
#chart{height:190px}
#chart-days,#chart-weight{height:160px}
.chart-key{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px;font-size:11px;color:var(--tx-3)}
.chart-key span{display:flex;align-items:center;gap:5px}
.chart-key u{width:9px;height:9px;border-radius:3px;display:block}

/* ---------------- entries ---------------- */
.entries li{display:flex;align-items:center;gap:11px;padding:11px 0;border-bottom:1px solid var(--line);min-width:0}
.entries li:last-child{border-bottom:0;padding-bottom:2px}
.entries .e-ico{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:15px;flex:0 0 auto;
  background:var(--card-2);border:1px solid var(--line)}
.entries .e-body{flex:1 1 auto;min-width:0}
.entries .e-name{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;font-size:14px;font-weight:550;line-height:1.3}
.entries .e-meta{display:block;font-size:11.5px;color:var(--tx-3);margin-top:2px}
.entries .e-val{font-size:14.5px;font-variant-numeric:tabular-nums;font-weight:600;flex:0 0 auto;white-space:nowrap}
.entries .e-val.burn{color:var(--good)}
.entries .e-edit{width:38px;height:38px;margin-right:-8px;border-radius:11px;color:var(--tx-3);
  display:grid;place-items:center;flex:0 0 auto}
.entries .e-edit:active{background:var(--card-2);color:var(--accent)}
.entries li .e-body{cursor:pointer}
.entries li:active .e-name{color:var(--accent)}
.empty{color:var(--tx-3);font-size:13px;text-align:center;padding:22px 0}

/* ---------------- fat card ---------------- */
.fat-stat{display:flex;flex-wrap:wrap;gap:14px 16px;align-items:flex-start}
.fat-stat>div:first-child{flex:0 0 auto}
.fat-stat>div:first-child b{display:block;font-size:34px;font-weight:680;letter-spacing:-.04em;color:var(--fat);
  font-variant-numeric:tabular-nums;line-height:1}
.fat-stat>div:first-child span{display:block;font-size:12px;color:var(--tx-3);margin-top:4px}
.fat-meta{flex:1 1 170px;min-width:0;display:flex;flex-direction:column;gap:7px}
.fat-meta div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:2px 10px;
  font-size:12px;color:var(--tx-3)}
.fat-meta div>span{min-width:0}
.fat-meta b{color:var(--tx-2);font-variant-numeric:tabular-nums}

/* ---------------- log view ---------------- */
.log-actions{display:flex;flex-direction:column;gap:10px;max-width:var(--maxw);margin:10px auto;padding:0 var(--pad)}
@media(min-width:560px){.log-actions{padding:0}}
.big-action{display:grid;grid-template-columns:46px minmax(0,1fr);grid-template-rows:auto auto;gap:1px 13px;
  text-align:left;padding:16px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);
  transition:transform .16s var(--ease)}
.big-action:active{transform:scale(.985)}
.ba-ico{grid-row:1/3;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:21px;
  background:var(--card-2);border:1px solid var(--line)}
.big-action b{font-size:15.5px;font-weight:620}
.big-action span:last-child{font-size:12.5px;color:var(--tx-3)}

/* ---------------- me view ---------------- */
.kv{display:flex;flex-direction:column;gap:11px}
.kv div{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:2px 12px;font-size:13.5px;color:var(--tx-2)}
.kv div>span:first-child{flex:0 1 auto;min-width:0}
.kv b{color:var(--tx);font-variant-numeric:tabular-nums;font-weight:600;text-align:right;
  flex:0 1 auto;min-width:0}
.kv .kv-hint{flex:1 1 100%;font-size:11px;line-height:1.45;color:var(--tx-3);font-weight:400;
  font-style:normal;text-align:left;margin-top:1px}
.set-row{display:flex;align-items:center;justify-content:space-between;
  gap:8px 12px;padding:12px 0;flex-wrap:wrap;
  border-bottom:1px solid var(--line);font-size:13.5px;color:var(--tx-2)}
.set-row:last-of-type{border-bottom:0}
.set-row>span:first-child{flex:1 1 auto;min-width:0}
.set-row .chipset{flex:0 1 auto;justify-content:flex-end}
.set-row .slider{flex:1 1 150px;min-width:150px}
.set-row b{color:var(--tx)}
/* narrow: label on its own line, control full width underneath */
@media (max-width:420px){
  .set-row{align-items:flex-start}
  .set-row>span:first-child{flex-basis:100%}
  .set-row .chipset{flex-basis:100%;justify-content:flex-start}
  .set-row .slider{flex-basis:100%}
  /* a bare toggle still reads fine beside its label */
  .set-row.set-inline>span:first-child{flex:1 1 auto}
  .set-row.set-inline{align-items:center}
}
.explain{font-size:13px;color:var(--tx-2);line-height:1.65}
.explain h4{font-size:13px;margin:14px 0 4px;color:var(--tx)}
.explain h4:first-child{margin-top:0}
.explain b{color:var(--tx)}
.explain .tag{display:inline-block;width:8px;height:8px;border-radius:3px;margin-right:5px;vertical-align:1px}

/* ---------------- fasts ---------------- */
.fasts li{display:flex;align-items:center;gap:11px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
.fasts li:last-child{border-bottom:0}
.fasts .f-len{font-size:17px;font-weight:650;font-variant-numeric:tabular-nums;min-width:62px}
.fasts .f-when{color:var(--tx-3);font-size:11.5px;flex:1}
.fasts .f-bar{height:6px;border-radius:99px;background:linear-gradient(90deg,var(--liver),var(--good));min-width:8px}
.fasts li.open .f-len{color:var(--good)}

/* ---------------- sheets ---------------- */
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:50;backdrop-filter:blur(3px);
  animation:fade .2s ease}
.sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:60;max-height:92dvh;
  display:flex;flex-direction:column;
  background:var(--bg-2);border-top:1px solid var(--line-2);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  box-shadow:0 -20px 60px -20px rgba(0,0,0,.8);
  animation:sheetUp .34s var(--ease);
  max-width:var(--maxw);margin:0 auto;
}
@keyframes sheetUp{from{transform:translateY(100%)}to{transform:none}}
.sheet-grip{width:38px;height:4px;border-radius:99px;background:var(--line-2);margin:9px auto 0;flex:0 0 auto}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:12px var(--pad) 6px;flex:0 0 auto}
.sheet-head h3{font-size:17px}
.sheet-body{overflow-y:auto;padding:6px var(--pad) 14px;-webkit-overflow-scrolling:touch}
.sheet-foot{display:flex;gap:10px;padding:12px var(--pad) calc(14px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);flex:0 0 auto}
.sheet-foot .btn{min-width:0;padding-left:12px;padding-right:12px}
.sheet-foot .btn{flex:1}
.sheet-sm .sheet-body{max-height:50dvh}

.food-list{max-height:44dvh;overflow-y:auto;margin:0 -4px}
.food-list li{display:flex;align-items:center;gap:11px;padding:11px 4px;border-bottom:1px solid var(--line);
  border-radius:10px;transition:background .14s}
.food-list li:active{background:var(--card-2)}
.food-list li.is-on{background:rgba(255,180,61,.12)}
.food-list .f-name{flex:1;min-width:0}
.food-list .f-name b{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;font-size:14px;font-weight:550;line-height:1.3}
.food-list .f-name span{display:block;font-size:11.5px;color:var(--tx-3);margin-top:2px}
.food-list .f-kcal{font-size:14px;font-variant-numeric:tabular-nums;font-weight:600;color:var(--tx-2)}
.macro-total{text-align:center;font-size:20px;font-weight:660;font-variant-numeric:tabular-nums;
  padding:12px;margin-top:12px;border-radius:13px;background:var(--card-2);border:1px solid var(--line)}
.act-picked{padding:13px;border-radius:13px;background:rgba(255,180,61,.10);border:1px solid rgba(255,180,61,.35);
  font-size:14.5px;font-weight:600;margin-bottom:4px}
.act-picked span{display:block;font-size:12px;color:var(--tx-2);font-weight:400;margin-top:2px}
.act-est{margin-top:14px;padding:14px;border-radius:13px;background:var(--card-2);border:1px solid var(--line);
  text-align:center;font-size:13px;color:var(--tx-2)}
.act-est b{display:block;font-size:26px;color:var(--good);font-variant-numeric:tabular-nums;font-weight:680}

/* what-if */
.whatif{margin-top:16px;padding:14px;border-radius:15px;background:var(--card-2);border:1px solid var(--line)}
.wi-head{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--tx-3);font-weight:600}
.wi-bar{display:flex;height:12px;border-radius:99px;overflow:hidden;margin:11px 0 12px;background:var(--card)}
.wi-bar i{display:block;height:100%;transition:width .5s var(--ease)}
.wi-gly{background:linear-gradient(90deg,var(--muscle),var(--liver))}
.wi-burn{background:var(--good)}
.wi-fat{background:var(--fat)}
.wi-key{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--tx-2)}
.wi-key span{display:flex;align-items:center;gap:7px}
.wi-key b{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--tx);font-weight:600}
.wi-key u{width:9px;height:9px;border-radius:3px;display:block}
.k-gly{background:var(--liver)}.k-burn{background:var(--good)}.k-fat{background:var(--fat)}
.whatif p{margin-top:11px;padding-top:11px;border-top:1px solid var(--line);font-size:12.5px;color:var(--tx-2);line-height:1.5}

/* ---------------- toast ---------------- */
.toast{
  position:fixed;left:50%;bottom:calc(86px + env(safe-area-inset-bottom));transform:translateX(-50%);
  z-index:90;padding:12px 18px;border-radius:14px;font-size:13.5px;font-weight:550;
  background:rgba(24,26,34,.96);border:1px solid var(--line-2);color:var(--tx);
  box-shadow:var(--shadow);max-width:calc(100vw - 32px);text-align:center;
  animation:toastIn .3s var(--ease);
}
.toast.bad{border-color:rgba(255,107,107,.45);color:#FFB4B4}
.toast.good{border-color:rgba(63,214,140,.4)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,14px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------------- reduced motion ---------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important}
}
body.no-motion *{animation:none !important}
body.no-motion .sb-dot{animation:none !important}

/* ---------------- larger screens ---------------- */
@media(min-width:560px){
  .card,.state-banner{margin-left:auto;margin-right:auto}
  .app-head{padding-left:0;padding-right:0}
  .view{padding-left:var(--pad);padding-right:var(--pad)}
  .sheet{border-radius:var(--r-lg);bottom:16px;left:16px;right:16px}
}

/* ---------------- tank calibration preview ---------------- */
.tank-preview{margin-top:18px;padding:14px;border-radius:15px;
  background:var(--card-2);border:1px solid var(--line)}
.tp-head{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--tx-3);
  font-weight:600;margin-bottom:11px}
.tp-row{display:flex;align-items:center;gap:10px;margin-bottom:9px;font-size:12.5px;color:var(--tx-2)}
.tp-row>span:first-child{flex:0 0 52px;min-width:0}
.tp-row b{flex:0 0 44px;text-align:right;font-variant-numeric:tabular-nums;color:var(--tx);font-weight:650}
.tp-bar{flex:1;height:8px;border-radius:99px;background:var(--card);overflow:hidden;
  border:1px solid var(--line)}
.tp-bar i{display:block;height:100%;border-radius:99px;width:0;transition:width .5s var(--ease)}
.tp-liver{background:linear-gradient(90deg,#FFCE7A,var(--liver))}
.tp-muscle{background:linear-gradient(90deg,#C6B0FF,var(--muscle))}
.tp-blood{background:linear-gradient(90deg,#9BF2F9,var(--blood))}
.tank-preview .hint{margin-top:2px}

.cgm{margin-top:16px;border:1px solid var(--line);border-radius:13px;padding:0 13px;
  background:var(--card)}
.cgm summary{padding:12px 0;font-size:13px;color:var(--tx-2);cursor:pointer;font-weight:550;
  list-style:none}
.cgm summary::-webkit-details-marker{display:none}
.cgm summary::before{content:"+";display:inline-block;width:16px;color:var(--accent);font-weight:700}
.cgm[open] summary::before{content:"\2212"}
.cgm[open]{padding-bottom:13px;background:var(--card-2)}

/* ---------------- header actions ---------------- */
.head-actions{display:flex;gap:8px;flex:0 0 auto}

/* ---------------- explainer sheets ---------------- */
.sheet-tall{max-height:94dvh}
.sheet-tall .sheet-body{max-height:calc(94dvh - 132px)}
.ex{font-size:14.5px;line-height:1.62;color:var(--tx-2)}
.ex b{color:var(--tx);font-weight:620}
.ex p{margin:0 0 13px}
.ex h4{font-size:15px;color:var(--tx);margin:26px 0 10px;letter-spacing:-.01em}
.ex h4:first-of-type{margin-top:20px}
.ex-lede{font-size:15.5px;line-height:1.6;color:var(--tx);
  padding:14px 15px;border-radius:14px;background:var(--card-2);border:1px solid var(--line)}
.ex-note{font-size:12.5px;line-height:1.55;color:var(--tx-3);margin:10px 0 0}
.ex-callout{padding:13px 15px;border-radius:13px;margin:14px 0 0;
  background:rgba(63,214,140,.10);border:1px solid rgba(63,214,140,.32);color:var(--tx)}
.ex-warn{margin-top:26px;padding:13px 15px;border-radius:13px;font-size:12.5px;line-height:1.55;
  background:var(--card);border:1px solid var(--line);color:var(--tx-3)}

.ex-fig{margin:16px 0 6px;padding:15px 14px;border-radius:16px;
  background:var(--card);border:1px solid var(--line)}
.ex-fig-cap{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--tx-3);font-weight:650;margin-bottom:11px}
.ex-svg{width:100%;height:auto;display:block;overflow:visible}

.tankbars{display:flex;flex-direction:column;gap:9px}
.tb{display:flex;align-items:center;gap:9px;font-size:12px}
.tb-n{flex:0 0 68px;color:var(--tx-2);min-width:0}
.tb-t{flex:1;height:12px;border-radius:99px;background:var(--card-2);
  border:1px solid var(--line);overflow:hidden;min-width:0}
.tb-t i{display:block;height:100%;border-radius:99px;width:0;transition:width .7s var(--ease)}
.tb b{flex:0 0 62px;text-align:right;font-variant-numeric:tabular-nums;
  color:var(--tx);font-size:11.5px;font-weight:650}
.tb[data-k=blood]  .tb-t i{background:linear-gradient(90deg,#9BF2F9,var(--blood))}
.tb[data-k=liver]  .tb-t i{background:linear-gradient(90deg,#FFCE7A,var(--liver))}
.tb[data-k=muscle] .tb-t i{background:linear-gradient(90deg,#C6B0FF,var(--muscle))}
.tb[data-k=fat]    .tb-t i{background:linear-gradient(90deg,#FFA073,var(--fat))}
.tb-all .tb-t i{background:linear-gradient(90deg,var(--blood),var(--liver) 40%,var(--muscle))}

.ex-tank{margin:0 0 12px;padding:14px 15px;border-radius:15px;
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--c)}
.ex-tank p{margin:0;font-size:13.5px}
.ex-tank-h{display:flex;align-items:center;gap:8px;margin-bottom:7px;flex-wrap:wrap}
.ex-tank-h b{font-size:14.5px;color:var(--c)}
.ex-tank-h em{font-style:normal;font-size:11.5px;color:var(--tx-3);margin-left:auto;
  font-variant-numeric:tabular-nums;white-space:nowrap}
.ex-dot{width:9px;height:9px;border-radius:50%;background:var(--c);flex:0 0 auto}

.ex-gloss{margin:12px 0 0;display:flex;flex-direction:column;gap:11px}
.ex-gloss dt{font-size:13px;font-weight:650;color:var(--tx)}
.ex-gloss dd{margin:2px 0 0;font-size:13px;color:var(--tx-2);line-height:1.5}

.ex-tbl{width:100%;border-collapse:collapse;margin:12px 0 4px;font-size:12.5px}
.ex-tbl th{text-align:left;font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--tx-3);font-weight:650;padding:0 8px 7px 0;border-bottom:1px solid var(--line)}
.ex-tbl td{padding:8px 8px 8px 0;border-bottom:1px solid var(--line);color:var(--tx-2);
  vertical-align:top}
.ex-tbl tr td:last-child{text-align:right;color:var(--tx);font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;padding-right:0}
.ex-tbl tr th:last-child{text-align:right;padding-right:0}

.ex-ol,.ex-ul,.ex-src{margin:10px 0 0;padding-left:20px;font-size:13.5px;line-height:1.6}
.ex-ol{list-style:decimal}
.ex-ul,.ex-src{list-style:disc}
.ex-ol li,.ex-ul li{margin-bottom:9px}
.ex-src{font-size:12.5px;color:var(--tx-3)}
.ex-src li{margin-bottom:7px}
.ex-src em{color:var(--tx-2)}
.ex code{font-family:var(--mono);font-size:12px;background:var(--card-2);
  padding:2px 5px;border-radius:5px;border:1px solid var(--line);color:var(--tx)}
.ex-sci p{font-size:13.5px}

/* ---------------- trial bar ---------------- */
.trial-bar{display:flex;align-items:center;gap:10px;max-width:var(--maxw);margin:8px auto 0;
  padding:10px 14px;border-radius:13px;font-size:12.5px;
  background:rgba(255,180,61,.11);border:1px solid rgba(255,180,61,.3);color:var(--tx)}
.trial-bar span{flex:1;min-width:0;line-height:1.4}
.trial-bar b{font-weight:700}
.trial-bar button{flex:0 0 auto;padding:8px 13px;min-height:36px;border-radius:10px;font-size:12.5px;
  font-weight:650;background:linear-gradient(180deg,#FFC768,#FF9E2B);color:#231400}
.trial-bar.is-urgent{background:rgba(255,107,107,.12);border-color:rgba(255,107,107,.35)}
@media(max-width:560px){.trial-bar{margin-left:var(--pad);margin-right:var(--pad)}}

/* ---------------- paywall ---------------- */
#scr-pay{min-height:100dvh}
.pay-wrap{max-width:460px;margin:0 auto;padding:40px var(--pad) calc(40px + env(safe-area-inset-bottom));
  min-height:100dvh;display:flex;flex-direction:column;justify-content:center}
.pay-mark{display:flex;justify-content:center;margin-bottom:16px;
  filter:drop-shadow(0 6px 22px rgba(255,150,40,.35))}
#scr-pay h1{font-size:27px;letter-spacing:-.035em;text-align:center}
.pay-lede{text-align:center;color:var(--tx-2);margin-top:10px;font-size:14.5px;line-height:1.55}
.pay-card{margin-top:22px;padding:20px 18px;border-radius:var(--r);
  background:var(--card);border:1px solid var(--line)}
.pay-price{text-align:center;margin-bottom:16px}
.pay-price b{font-size:40px;font-weight:700;letter-spacing:-.04em;
  background:linear-gradient(180deg,#FFD489,#FF8A2B);-webkit-background-clip:text;
  background-clip:text;color:transparent}
.pay-price span{font-size:14px;color:var(--tx-3);margin-left:5px}
.pay-list{display:flex;flex-direction:column;gap:9px;margin-bottom:18px}
.pay-list li{position:relative;padding-left:24px;font-size:13.5px;color:var(--tx-2);line-height:1.45}
.pay-list li::before{content:"";position:absolute;left:2px;top:5px;width:12px;height:7px;
  border-left:2px solid var(--good);border-bottom:2px solid var(--good);transform:rotate(-45deg)}
.pay-note{margin-top:11px;font-size:11.5px;color:var(--tx-3);text-align:center;line-height:1.5}
.pay-foot{margin-top:22px}
.pay-foot .hint{text-align:center}
.pay-actions{display:flex;gap:10px;margin-top:12px}
.pay-actions .btn{flex:1}