@font-face{font-family:'GD Sans';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-sans-500.woff2) format('woff2');font-weight:500;font-display:swap;unicode-range:U+0020-007E,U+00A0-00FF,U+2009-2026,U+2032-2033,U+2039-203A,U+2044,U+2190-2193,U+2212,U+2215,U+FEFF}
@font-face{font-family:'GD Sans';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-sans-600.woff2) format('woff2');font-weight:600;font-display:swap;unicode-range:U+0020-007E,U+00A0-00FF,U+2009-2026,U+2032-2033,U+2039-203A,U+2044,U+2190-2193,U+2212,U+2215,U+FEFF}
@font-face{font-family:'GD Sans';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-sans-700.woff2) format('woff2');font-weight:700;font-display:swap;unicode-range:U+0020-007E,U+00A0-00FF,U+2009-2026,U+2032-2033,U+2039-203A,U+2044,U+2190-2193,U+2212,U+2215,U+FEFF}
@font-face{font-family:'GD Arabic';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-arabic-500.woff2) format('woff2');font-weight:500;font-display:swap;unicode-range:U+0600-06FF,U+200C-200F,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'GD Arabic';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-arabic-600.woff2) format('woff2');font-weight:600;font-display:swap;unicode-range:U+0600-06FF,U+200C-200F,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'GD Arabic';src:url(/brand/gymdata-landing/7ee171d713298d0f/assets/fonts/plex-arabic-700.woff2) format('woff2');font-weight:700;font-display:swap;unicode-range:U+0600-06FF,U+200C-200F,U+FB50-FDFF,U+FE70-FEFF}

:root{
  --bg:#0E1322;--card:#171D31;--raised:#20283F;--field:#4A5272;
  --ink:#F3F5FB;--muted:#AEB6CF;--dim:#6E7794;
  --line:rgba(243,245,251,.12);--line2:#2A3250;--softLine:#242B45;
  --sky:#A1EAFB;--blush:#FFCEF3;--lav:#CABBE9;--skySoft:#1B2C3C;
  --positive:#5CC98B;--positiveSoft:#12291F;--warning:#F0B45B;--warningSoft:#2B2213;--track:#24324A;
  --gutter:16px;--slabR:24px;--hdr:56px;
  --font:'GD Sans','GD Arabic','GD Fallback Arabic','GD Fallback',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Tahoma,sans-serif;
  --state:cubic-bezier(.4,0,.2,1);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;background:var(--bg);overflow-x:clip;scroll-padding-top:calc(var(--hdr) + 72px)}
body{margin:0;min-height:100dvh;background:var(--bg);color:var(--ink);font-family:var(--font);font-weight:500;font-size:16px;line-height:1.55;overflow-x:clip;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-synthesis:none}
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(120% 80% at 70% 30%,#1b2340 0%,#0E1322 60%)}
img,svg{display:block;max-width:100%}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}
h1,h2,h3,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
bdi{unicode-bidi:isolate}
[hidden]{display:none!important}
.num{font-variant-numeric:tabular-nums}
.ltr{direction:ltr;unicode-bidi:isolate}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--sky);outline-offset:3px;border-radius:10px}
[dir=rtl] .arr{transform:scaleX(-1)}

/* ---- shell ---- */
.top{position:sticky;top:0;z-index:50;height:var(--hdr);display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 var(--gutter);background:rgba(14,19,34,.78);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px}
.brand img{width:32px;height:32px;border-radius:9px}
.top-acts{display:flex;align-items:center;gap:8px}
.pill-lang{height:36px;padding-inline:14px;border-radius:999px;border:1px solid var(--line);background:rgba(24,32,58,.6);color:var(--ink);font-weight:600;font-size:14px;display:inline-flex;align-items:center}
.pill-store{height:36px;display:inline-flex;align-items:center;gap:7px;padding-inline:12px 14px;border-radius:999px;background:#fff;color:#0E1322;font-weight:700;font-size:14px;white-space:nowrap}
main{position:relative;z-index:1;max-width:560px;margin:0 auto;padding:0 var(--gutter) 40px}
@media (min-width:720px){main{padding-top:12px}.top{padding:0 32px}}

/* ---- page head ---- */
.crumb{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;font-weight:600;color:var(--sky)}
.crumb::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--sky)}
.crumb:hover{text-decoration:underline;text-underline-offset:3px}
h1.h1{font-size:30px;line-height:1.15;font-weight:700;margin-top:6px;text-wrap:balance}
.sub{font-size:15px;line-height:1.55;color:var(--muted);margin-top:6px;max-width:36ch;text-wrap:pretty}
.sub b{color:var(--ink);font-weight:600}

/* ---- result slab (sticky) ---- */
.sentinel{height:1px}
.result{position:sticky;top:var(--hdr);z-index:5;margin-top:14px;padding:16px 18px 16px;border-radius:var(--slabR);background:var(--card);border:1px solid var(--line2);box-shadow:0 24px 60px rgba(0,0,0,.45),0 0 0 1px rgba(161,234,251,.06)}
/* nothing computed: no tag, no unit, no empty reason */
.result.off .tag{display:none}
.result.off .r-big .r-unit{display:none}
.result.off .r-why:empty{display:none}
.r-why.warn{color:var(--warning)}
.r-big.hero{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px;font-size:0}
.r-big.hero .disc{width:56px;height:56px;font-size:15px}
.r-big.hero .x{font-size:15px;color:var(--dim);font-weight:600}
.r-label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted)}
.tag{display:inline-flex;align-items:center;height:20px;padding-inline:8px;border-radius:999px;background:var(--skySoft);color:var(--sky);font-size:11px;font-weight:700;letter-spacing:0}
.tag.ex{background:rgba(255,206,243,.14);color:var(--blush)}
.r-big{display:flex;align-items:baseline;gap:8px;margin-top:4px;font-size:44px;line-height:1.05;font-weight:700;letter-spacing:-.01em;color:var(--ink);transition:font-size .18s var(--state)}
.r-big .r-unit{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:0}
.r-big.empty{color:var(--dim)}
.r-why{margin-top:8px;font-size:13.5px;line-height:1.5;color:var(--muted);text-wrap:pretty}
.r-why .ltr{font-weight:600;color:var(--ink)}
.result.blocked .r-why{color:var(--warning)}
.r-extra{margin-top:12px}
/* stuck: one 58px bar, full-bleed under the header */
.result.stuck{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:14px;align-items:center;padding:8px var(--gutter) 9px;margin-inline:calc(-1*var(--gutter));border-radius:0 0 18px 18px;border-top:0;border-inline:0;box-shadow:0 14px 32px rgba(0,0,0,.45)}
.result.stuck .r-label{grid-area:1/1;font-size:11.5px;line-height:1.2}
.result.stuck .r-label .tag{display:none}
.result.stuck .r-big{grid-area:2/1;font-size:26px;margin-top:1px}
.result.stuck .r-big .r-unit{font-size:12px}
.result.stuck .r-big.hero .disc{width:34px;height:34px;font-size:11px}
.result.stuck > .r-why,.result.stuck .r-extra>.r-why,.result.stuck .compact-hide,.result.stuck .tile small,.result.stuck .tile.lo,.result.stuck .band,.result.stuck .ptable{display:none}
.result.stuck .r-extra{grid-area:1/2/3/3;margin:0;justify-self:end;min-width:0;overflow:hidden}
.result.stuck .tiles{display:flex;flex-wrap:nowrap;gap:12px}
.result.stuck .tile{flex-direction:row;align-items:baseline;gap:5px;padding:0;background:none;border:0}
.result.stuck .tile span{font-size:11.5px}
.result.stuck .tile b{font-size:15px}

/* secondary numbers: tiles + chips */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.tiles.four{grid-template-columns:1fr 1fr}
@media (min-width:480px){.tiles.four{grid-template-columns:repeat(4,1fr)}}
.tile{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:14px;background:var(--raised);border:1px solid var(--softLine)}
.tile span{font-size:12px;font-weight:600;color:var(--muted)}
.tile b{font-size:20px;line-height:1.1;font-weight:700;color:var(--ink)}
.tile small{font-size:11.5px;color:var(--dim)}
.tile.sky b{color:var(--sky)}.tile.blush b{color:var(--blush)}.tile.lav b{color:var(--lav)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:baseline;gap:5px;height:32px;padding-inline:10px;border-radius:10px;background:var(--raised);font-size:13px;font-weight:600;color:var(--muted);align-items:center}
.chip b{font-size:15px;color:var(--ink)}
.chip.sky b{color:var(--sky)}.chip.blush b{color:var(--blush)}.chip.lav b{color:var(--lav)}

/* band (BMI) */
.band{margin-top:4px}
.band .bar{position:relative;height:10px;border-radius:99px;overflow:visible;display:flex;gap:2px}
.band .bseg{flex:1;height:100%;background:var(--track)}
.band .bseg:first-child{border-start-start-radius:99px;border-end-start-radius:99px}.band .bseg:last-child{border-start-end-radius:99px;border-end-end-radius:99px}
.band .bseg.on{background:var(--sky)}
.band .mark{position:absolute;top:-5px;width:4px;height:20px;border-radius:3px;background:var(--ink);box-shadow:0 0 0 3px var(--card);transform:translateX(-50%)}
.band .ticks{display:flex;margin-top:6px;font-size:11.5px;color:var(--dim)}
.band .ticks span{flex:1;text-align:center}
.band .ticks span.on{color:var(--ink);font-weight:600}
.band .range{margin-top:10px;font-size:13.5px;color:var(--muted)}
.band .range b{color:var(--ink);font-weight:600}

/* percent table (1RM) */
.ptable{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;direction:ltr}
.ptable div{padding:7px 4px;border-radius:12px;background:var(--raised);text-align:center}
.ptable div span{display:block;font-size:11.5px;color:var(--dim);font-weight:600}
.ptable div b{display:block;font-size:15.5px;line-height:1.2;color:var(--ink)}
@media (max-width:359px){.ptable div b{font-size:14px}}

/* bar diagram (plates) */
/* plates: the discs are the answer; no bar diagram */
.plates-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:10px}
.disc{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--ink);background:radial-gradient(circle at 42% 38%,#2b334d 0%,#171d31 55%,#0f1424 100%);box-shadow:inset 0 0 0 2px var(--ring,rgba(243,245,251,.22)),inset 0 0 0 7px rgba(14,19,34,.6),inset 0 0 0 8px rgba(243,245,251,.08),0 8px 18px rgba(0,0,0,.4);font-variant-numeric:tabular-nums}
.disc.s{width:38px;height:38px;font-size:11.5px}
.plates-row .x{font-size:13px;color:var(--dim);font-weight:600}

/* ---- form ---- */
.form{margin-top:18px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.span2{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>label,.field>.lbl{font-size:13px;font-weight:600;color:var(--muted)}
.inp{position:relative;display:flex;align-items:center;min-height:54px;padding:0 6px 0 12px;border-radius:14px;background:var(--card);border:1px solid var(--line2);transition:border-color .15s var(--state),box-shadow .15s var(--state)}
[dir=rtl] .inp{padding:0 12px 0 6px}
.inp input{flex:1;min-width:0;width:100%;height:50px;background:none;border:0;outline:0;font-size:20px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink);padding:0}
.inp input::placeholder{color:var(--dim);font-weight:500;font-size:16px}
.inp .suffix{font-size:13px;font-weight:600;color:var(--dim);padding-inline:6px;white-space:nowrap}
.inp:focus-within{border-color:var(--sky);box-shadow:0 0 0 3px rgba(161,234,251,.18)}
.field.err .inp{border-color:var(--warning);box-shadow:0 0 0 3px rgba(240,180,91,.14)}
.field.err .inp input{color:var(--warning)}
.msg{display:none;font-size:13px;line-height:1.45;color:var(--warning)}
.field.err .msg{display:block}
.unit{margin-inline-start:auto;display:flex;background:var(--raised);border-radius:10px;padding:3px;box-shadow:inset 0 0 0 1px var(--line2);flex:none}
.unit button{min-height:40px;min-width:46px;border-radius:8px;font-size:13.5px;font-weight:600;color:var(--muted);padding-inline:8px}
.unit button[aria-pressed=true]{background:var(--field);color:var(--ink)}
.ftin{display:none;flex:1;gap:4px;align-items:center}
.ftin input{width:3ch;flex:0 0 auto}
.ftin .suffix{padding-inline:2px 8px}
.field.ftin-on .main-in{display:none}.field.ftin-on .ftin{display:flex}.field.ftin-on{grid-column:1/-1}.ftin input{width:3.2ch}
.seg{display:flex;min-height:52px;padding:4px;gap:4px;border-radius:14px;background:var(--card);border:1px solid var(--line2)}
.seg button{flex:1;min-width:0;border-radius:10px;font-size:15px;font-weight:600;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;padding:4px 2px}
.seg button small{font-size:10.5px;font-weight:600;color:var(--dim);margin-top:3px}
.seg button[aria-pressed=true]{background:var(--raised);color:var(--ink);box-shadow:inset 0 0 0 1px var(--field)}
.seg button[aria-pressed=true] small{color:var(--sky)}
.seg.tall{min-height:58px}
.opt{margin-top:12px}
.opt-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--sky);min-height:36px}
.opt-btn .chev{width:16px;height:16px}
.opt-body{display:none;margin-top:10px;padding:12px;border-radius:16px;background:rgba(23,29,49,.6);border:1px dashed var(--line2)}
.opt.open .opt-body{display:block}.opt.open .chev{transform:rotate(180deg)}
.example{font-size:12.5px;color:var(--dim);margin-top:10px}
.example b{color:var(--muted);font-weight:600}

/* ---- how / app / related / footer ---- */
.how{margin-top:20px;border-radius:18px;background:rgba(23,29,49,.55);border:1px solid var(--line2);overflow:hidden}
.how summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:52px;padding:0 16px;font-size:15px;font-weight:700}
.how summary::-webkit-details-marker{display:none}
.how[open] summary .chev{transform:rotate(180deg)}
.how summary .chev{color:var(--muted);transition:transform .15s var(--state)}
.how ol{padding:0 16px 14px;display:grid;gap:10px;font-size:13.5px;line-height:1.55;color:var(--muted)}
.how li{display:grid;grid-template-columns:64px 1fr;gap:8px;align-items:start}
.how .k{font-weight:700;color:var(--ink);font-size:12.5px;padding-top:2px}
.how .f{display:inline-block;direction:inherit;unicode-bidi:isolate;color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;background:var(--raised);padding:1px 8px;border-radius:7px;margin:2px 0}
.how .f bdi{direction:ltr;unicode-bidi:isolate}
.how .f.ltr{direction:ltr}
.how a{color:var(--sky);text-decoration:underline;text-underline-offset:3px}
.how em{font-style:normal;color:var(--ink)}
.app{margin-top:20px;display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:18px;background:linear-gradient(135deg,rgba(161,234,251,.12),rgba(255,206,243,.06));border:1px solid rgba(161,234,251,.18)}
.app img{width:40px;height:40px;border-radius:11px;flex:none}
.app p{flex:1;font-size:13.5px;line-height:1.5;color:var(--ink)}
.app a.go{display:inline-flex;align-items:center;gap:4px;color:var(--sky);font-weight:700;white-space:nowrap}
.app a.go .arr{width:16px;height:16px}
.related{margin-top:22px}
.related h2{font-size:13px;font-weight:700;color:var(--muted)}
.related ul{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.related a{display:inline-flex;align-items:center;min-height:34px;padding-inline:12px;border-radius:999px;border:1px solid var(--line2);background:rgba(23,29,49,.6);font-size:13.5px;font-weight:600;color:var(--ink)}
footer{position:relative;z-index:1;margin-top:24px;border-top:1px solid var(--line);padding:22px var(--gutter) max(28px,env(safe-area-inset-bottom))}
.foot{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;max-width:560px;margin:0 auto}
.foot nav{display:flex;gap:18px;font-size:14px;font-weight:600;color:var(--muted)}
.foot .med{font-size:12.5px;color:var(--dim);flex-basis:100%}
.credit{max-width:560px;margin:14px auto 0;font-size:12px;color:var(--dim)}
.credit a{display:inline-flex;align-items:center;gap:8px}.credit img{width:22px;height:22px;border-radius:6px}.credit b{color:var(--muted)}

/* ---- hub ---- */
.hub-h1{font-size:34px;line-height:1.1;font-weight:700;margin-top:24px}
.group{margin-top:22px}
.group h2{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--sky)}
.group h2::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--sky)}
.cards{display:grid;gap:8px;margin-top:10px}
.card{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:18px;background:var(--card);border:1px solid var(--line2);transition:border-color .15s var(--state)}
.card:hover{border-color:rgba(161,234,251,.4)}
.card .ic{width:40px;height:40px;border-radius:12px;background:var(--skySoft);color:var(--sky);display:grid;place-items:center;flex:none;font-weight:700;font-size:13px}
.card .ic.blush{background:rgba(255,206,243,.12);color:var(--blush)}.card .ic.lav{background:rgba(202,187,233,.14);color:var(--lav)}.card .ic.plain{background:none}
.card div{flex:1;min-width:0}
.card h3{font-size:16px;font-weight:700;line-height:1.25}
.card p{font-size:13px;color:var(--muted);margin-top:2px;line-height:1.45}
.card .arr{color:var(--dim);flex:none}
.cta-line{margin-top:28px;font-size:22px;font-weight:700}
.store{display:flex;gap:10px;margin-top:12px}
.btn-store{display:inline-flex;align-items:center;gap:10px;min-height:52px;padding:8px 18px 8px 14px;border-radius:16px;background:#fff;color:#0E1322;box-shadow:0 20px 50px rgba(161,234,251,.18)}
.btn-store small{display:block;font-size:11px;font-weight:600;line-height:1}
.btn-store b{display:block;font-size:16px;line-height:1.15}
.btn-store svg{width:22px;height:22px}

.brand span{white-space:nowrap}
.plate-pick .disc{width:42px;height:42px;font-size:12.5px}
.plate-pick .plates-row{gap:6px}
.plate-pick .disc[aria-pressed=false]{opacity:.35}
@media (max-width:359px){
  h1.h1{font-size:26px}.r-big{font-size:38px}.fields{gap:8px}.unit button{min-width:40px;padding-inline:6px;font-size:12.5px}.seg button{font-size:13.5px}
  .brand span{display:none}.brand img{width:30px;height:30px}.pill-lang{padding-inline:10px;font-size:13px}.pill-store{padding-inline:10px 12px;font-size:13px}
}
/* ---- desktop: two columns, slab sticky in the start column, no compaction ---- */
@media (min-width:900px){
  main.calc{max-width:1000px;display:grid;grid-template-columns:420px minmax(0,1fr);column-gap:48px;align-items:start;padding-top:28px}
  main.calc .crumb,main.calc h1.h1,main.calc .sub{grid-column:1/-1}
  main.calc .crumb{justify-self:start}
  main.calc h1.h1{font-size:40px}
  main.calc .sub{font-size:16px;max-width:48ch}
  main.calc .sentinel{display:none}
  main.calc .result{grid-column:1;grid-row:4/span 4;position:sticky;top:calc(var(--hdr) + 20px);margin-top:20px;border-radius:var(--slabR)}
  main.calc .r-big{font-size:52px}
  main.calc .form{grid-column:2;grid-row:4;margin-top:20px}
  main.calc .how{grid-column:2;grid-row:5}
  main.calc .app{grid-column:2;grid-row:6}
  main.calc .related{grid-column:2;grid-row:7}
  .fields{gap:12px}
  main.hub{max-width:880px}
  .cards{grid-template-columns:1fr 1fr}
  .foot,.credit{max-width:1000px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation:none!important}}