:root{--ink:#0f172a;--mut:#475569;--soft:#64748b;--teal:#0d9488;--blue:#2563eb;--bg:#f8fafc;--line:#e2e8f0;--navy:#0f172a;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}
a{text-decoration:none;color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}
svg{width:1em;height:1em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
/* demo bar */
.demo{background:var(--navy);color:#cbd5e1;font-size:12px;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.demo .l{display:flex;align-items:center;gap:8px}.demo .dot{width:7px;height:7px;border-radius:50%;background:#10b981}
.demo .l b{color:#fff;font-weight:500;padding-right:10px;border-right:1px solid #334155}
.tabs{display:flex;gap:2px;border:1px solid #334155;border-radius:8px;padding:3px}
.tabs button{background:none;border:0;color:#cbd5e1;font:inherit;padding:5px 12px;border-radius:6px;cursor:pointer}
.tabs button.on{background:#334155;color:#fff}
.sw{display:flex;align-items:center;gap:8px;color:#e2e8f0}
.sw i{width:38px;height:16px;border-radius:9px;background:#334155;position:relative;cursor:pointer}
.sw i:after{content:"";position:absolute;top:2px;left:2px;width:12px;height:12px;border-radius:50%;background:#fff;transition:.2s}
.sw i.on{background:var(--teal)}.sw i.on:after{left:24px}
.ad{display:none;margin:12px auto;max-width:728px;padding:18px;border:1px dashed #94a3b8;text-align:center;color:#94a3b8;font-size:12px;background:#fff}
.ads .ad{display:block}
/* header */
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:env(safe-area-inset-top,0px);z-index:10}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1240px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;color:var(--ink)}
.logo svg{width:34px;height:34px;color:var(--teal);stroke-width:2.2}.logo span{color:var(--teal)}
nav{display:flex;gap:30px;font-size:14px;font-weight:500;color:#334155}
nav a:hover{color:var(--teal)}nav .ai{color:var(--teal);font-weight:600;display:flex;gap:5px;align-items:center}
.hr{display:flex;align-items:center;gap:22px;color:var(--soft)}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font:inherit;font-weight:600;font-size:14px;border-radius:8px;padding:10px 18px;color:#fff;background:var(--teal)}
.btn.blue{background:linear-gradient(90deg,#0d9488,#2563eb)}
.btn.out{background:#fff;color:#1e293b;border:1px solid var(--line);box-shadow:0 1px 2px #0001}
/* hero */
.hero{background:linear-gradient(180deg,#f1f7fa,#fff);padding:48px 0 70px}
.hero .wrap{max-width:1240px;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.pill{display:inline-flex;gap:8px;align-items:center;font-size:12px;font-weight:600;letter-spacing:.06em;color:#0f766e;background:#ecfdf5;border:1px solid #ccfbf1;border-radius:99px;padding:6px 14px}
h1{font-size:clamp(40px,6vw,64px);line-height:1.05;font-weight:800;letter-spacing:-.03em;margin:26px 0 22px}
h1 span{background:linear-gradient(90deg,#0d9488,#2563eb);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:#334155;max-width:560px}
.cta{display:flex;gap:16px;margin:32px 0;flex-wrap:wrap}.cta .btn{padding:16px 24px;font-size:16px;border-radius:10px}
.checks{display:flex;gap:22px;flex-wrap:wrap;font-size:12px;color:var(--mut)}.checks span{display:flex;gap:6px;align-items:center}.checks svg{color:#10b981;font-size:16px}
.card{background:#fff;border-radius:16px;box-shadow:0 20px 40px -10px #0f172a26;border:1px solid #eef2f6;padding:24px}
.ch{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid #f1f5f9}
.fc{width:40px;height:40px;border-radius:50%;background:#f0fdfa;color:var(--teal);display:grid;place-items:center;font-weight:700;font-size:14px}
.ch b{display:block;font-size:15px}.ch small{color:var(--soft);font-size:12px}
.tag{margin-left:auto;font-size:12px;color:#059669;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:99px;padding:3px 12px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}
.st{background:#f8fafc;border:1px solid #f1f5f9;border-radius:10px;padding:14px}
.st small{font-size:12px;color:var(--mut)}.st div{font-size:22px;font-weight:700;margin:2px 0 8px}.st div em{font-style:normal;font-size:13px;font-weight:500;color:var(--soft)}
.bar{height:6px;border-radius:4px;background:#e2e8f0;overflow:hidden}.bar i{display:block;height:100%;border-radius:4px;background:var(--teal)}
.mh{display:flex;justify-content:space-between;font-size:12px;color:var(--mut);margin-bottom:8px}.mh b{color:var(--ink)}
.mac{display:flex;gap:3px;height:12px}.mac i{display:block;border-radius:2px}
.lg{display:flex;justify-content:space-between;font-size:11px;color:var(--mut);margin-top:12px}.lg span:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c);margin-right:6px}
/* calculators */
.sec{padding:60px 0}
.ctr{text-align:center}.ctr h2{font-size:24px;font-weight:800;letter-spacing:-.02em}.ctr p{font-size:14px;color:var(--mut);margin-top:8px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px;max-width:975px;margin-inline:auto}
.cc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;display:block;transition:box-shadow .2s,transform .2s}
.cc:hover{box-shadow:0 8px 20px #0f172a14;transform:translateY(-2px)}
.ic{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;font-size:18px;background:var(--bg2);color:var(--c);margin-bottom:22px}
.cc h3{font-size:15px;font-weight:700;margin-bottom:8px}.cc p{font-size:12px;color:var(--mut);min-height:52px}
.cc u{display:block;margin-top:14px;font-size:11px;font-weight:500;color:var(--c);text-decoration:none}
/* goals */
.goals{background:#0f172a;color:#fff;padding:60px 0}
.goals .ctr small{font-size:10px;letter-spacing:.1em;font-weight:600}.goals .ctr h2{margin:6px 0 10px}.goals .ctr p{color:#94a3b8}
.gc{background:#1e293b;border:1px solid #334155;border-radius:12px;padding:20px;display:flex;flex-direction:column}
.gc .ic{width:32px;height:32px;font-size:14px;border-radius:8px;margin-bottom:20px}
.gc h3{font-size:17px;margin-bottom:8px}.gc p{font-size:12px;color:#94a3b8;margin-bottom:20px;flex:1}
.gc a{display:block;text-align:center;font-size:12px;font-weight:500;padding:10px;border-radius:7px;color:#fff;background:var(--c)}
/* AI */
.ai-box{max-width:975px;margin:0 auto;display:grid;grid-template-columns:5fr 7fr;border-radius:20px;overflow:hidden;box-shadow:0 20px 40px -10px #0f172a30;background:#fff;min-height:360px}
.ai-l{background:linear-gradient(160deg,#0f172a,#1e293b);color:#fff;padding:38px}
.ai-l .pill{background:#134e4a;border-color:#134e4a;color:#99f6e4;font-size:10px;padding:4px 12px}
.ai-l h2{font-size:26px;font-weight:800;margin:20px 0 14px}.ai-l p{font-size:12px;color:#cbd5e1;max-width:240px}
.ai-l hr{border:0;border-top:1px solid #334155;margin:28px 0 20px}.ai-l small{font-size:11px;letter-spacing:.1em;color:#94a3b8}
.sg{display:block;width:100%;text-align:left;margin-top:10px;background:#273449;border:1px solid #334155;color:#fff;border-radius:8px;padding:10px 12px;font:inherit;font-size:11px;cursor:pointer}
.sg:hover{background:#334155}
.ai-r{display:flex;flex-direction:column;padding:26px;background:#f8fafc}
.msgs{flex:1;overflow-y:auto;max-height:260px;display:flex;flex-direction:column;gap:14px;padding-bottom:14px}
.m{display:flex;gap:10px;align-items:flex-start}.m.u{flex-direction:row-reverse}
.av{width:26px;height:26px;border-radius:50%;background:var(--teal);color:#fff;font-size:10px;font-weight:600;display:grid;place-items:center;flex:none}
.m.u .av{background:var(--blue)}
.bub{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:12px;max-width:78%;line-height:1.55}
.m.u .bub{background:var(--blue);color:#fff;border-color:var(--blue)}
.inp{display:flex;gap:12px;border-top:1px solid var(--line);padding-top:14px}
.inp input{flex:1;border:1px solid #cbd5e1;border-radius:8px;padding:10px 14px;font:inherit;font-size:12px;background:#fff;color:var(--ink)}
.inp input:focus{outline:2px solid #99f6e4;border-color:var(--teal)}
.inp .btn{padding:10px 20px;font-size:13px}
.disc{text-align:center;font-size:10px;color:#94a3b8;margin-top:12px}
/* articles */
.ah{display:flex;justify-content:space-between;align-items:flex-end;max-width:975px;margin:0 auto}
.ah small{font-size:10px;font-weight:700;letter-spacing:.1em;color:var(--teal)}.ah h2{font-size:24px;font-weight:800;letter-spacing:-.02em}
.ah a{font-size:12px;font-weight:500;color:var(--teal)}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:975px;margin:30px auto 0}
.art{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:block}
.art .im{height:154px;background:var(--g);position:relative}.art .im span{position:absolute;left:19px;bottom:17px;background:#fffffff2;font-size:11px;font-weight:600;border-radius:99px;padding:4px 10px}
.art .b{padding:19px}.art .mt{font-size:10px;color:var(--soft);display:flex;gap:10px;margin-bottom:12px}
.art h3{font-size:15px;font-weight:700;line-height:1.5}.art p{font-size:12px;color:var(--mut);margin:10px 0 14px;min-height:54px}
.art .rf{border-top:1px solid #f1f5f9;padding-top:12px;display:flex;justify-content:space-between;font-size:11px;font-weight:600;color:var(--teal)}
.art:hover h3{color:var(--teal)}
/* faq */
.faq{border-top:1px solid var(--line);padding:56px 0 70px}
.faq h2{font-size:24px;font-weight:800;text-align:center;margin-bottom:32px;letter-spacing:-.02em}
.fi{max-width:692px;margin:0 auto 14px;background:#fff;border:1px solid var(--line);border-radius:10px}
.fi button{width:100%;display:flex;justify-content:space-between;align-items:center;background:none;border:0;font:inherit;font-size:13px;font-weight:600;padding:18px 16px;cursor:pointer;color:var(--ink);text-align:left}
.fi button svg{color:#94a3b8;transition:transform .2s}.fi.open button svg{transform:rotate(180deg)}
.fi .a{display:none;padding:0 16px 18px;font-size:13px;color:var(--mut)}.fi.open .a{display:block}
/* footer */
footer{background:#0f172a;color:#cbd5e1;padding:56px 0 24px}
.fg{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.fg h4{font-size:11px;letter-spacing:.1em;color:#fff;margin-bottom:14px}
.fg a{display:block;font-size:11px;color:#cbd5e1;margin-bottom:10px;letter-spacing:.03em}.fg a:hover{color:#fff}
.fg .logo{color:#fff;font-size:18px;margin-bottom:14px}.fg p{font-size:11px;max-width:290px;line-height:1.7}.fg .cp{color:#94a3b8;margin-top:12px}
.fd{border-top:1px solid #1e293b;margin-top:34px;padding-top:20px;text-align:center;font-size:10px;color:#94a3b8}
/* calculator page */
#calcview{padding:40px 0 64px}#calcview .wrap{max-width:1020px}
.bc{font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--teal)}.bc i{font-style:normal;color:#64748b;margin:0 6px}
.ct{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:4px 0 8px}.cs{font-size:14px;color:var(--mut);margin-bottom:34px}
.cg{display:grid;grid-template-columns:390px 1fr;gap:26px;align-items:start}
.fcard{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.fcard h3{font-size:15px;font-weight:700;padding:8px 0 14px;border-bottom:1px solid #f1f5f9;margin-bottom:18px}
.fcard label,.fcard .lb{display:block;font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#1e293b;margin:0 0 7px}
.fr{display:grid;grid-template-columns:1fr 1fr;gap:14px}.fr>div,.fg1{margin-bottom:18px}
.gb{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gb button{font:inherit;font-size:12px;padding:12px;border-radius:9px;border:1px solid var(--line);background:#fff;color:#334155;cursor:pointer}
.gb button.on{background:#f0fdfa;border-color:#2dd4bf;color:#0f766e;font-weight:500}
.fcard input,.fcard select{width:100%;font:inherit;font-size:12px;padding:12px 16px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink)}
.fcard input:focus,.fcard select:focus{outline:2px solid #99f6e4;border-color:var(--teal)}
.fcard .go{width:100%;justify-content:center;padding:15px;font-size:14px;border-radius:10px;margin-top:2px}
.rcard{background:linear-gradient(160deg,#0f172a,#1e293b);color:#fff;border-radius:18px;padding:26px 24px;box-shadow:0 20px 40px -12px #0f172a40}
.rt{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:20px;border-bottom:1px solid #334155}
.rt small{font-size:10px;letter-spacing:.1em;color:#cbd5e1}.rt b{display:block;font-size:27px;font-weight:700;margin-top:2px}.rt b em{font-style:normal;font-size:13px;font-weight:400;color:#94a3b8;margin-left:4px}
.bd{font-size:10px;font-weight:600;color:#99f6e4;background:#134e4a;border:1px solid #0f766e;border-radius:99px;padding:4px 12px}
.r3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0 24px}
.r3 div{background:#1e293b80;border:1px solid #334155;border-radius:10px;padding:14px}.r3 small{display:block;font-size:10px;color:#94a3b8;margin-bottom:8px}.r3 b{font-size:14px}
.rh{font-size:10px;letter-spacing:.1em;color:#cbd5e1;margin-bottom:10px}
.r3m div{border-top:2px solid var(--c);text-align:center;padding:14px 8px}.r3m small{color:#cbd5e1;font-size:10px;margin-bottom:4px}.r3m b{font-size:18px;display:block}.r3m span{font-size:8px;color:#94a3b8}
.how{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;margin-top:22px}
.how h4{font-size:12px;font-weight:700;margin-bottom:12px}.how p{font-size:11px;color:#334155;margin-bottom:12px}
.how pre{background:#f8fafc;border-radius:8px;padding:12px;font:10px/1.7 ui-monospace,Menlo,Consolas,monospace;color:#1e293b;overflow-x:auto}
/* AI coach page */
#aiview{padding:8px 0 56px}.aw{max-width:692px;margin:0 auto;padding:0 24px}
.ban{background:linear-gradient(100deg,#0d9488,#2563eb);color:#fff;border-radius:14px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;margin-top:8px;box-shadow:0 8px 20px -8px #2563eb60}
.ban .pl{display:inline-flex;gap:6px;align-items:center;font-size:9px;font-weight:600;letter-spacing:.06em;background:#ffffff33;border-radius:99px;padding:4px 10px}
.ban h2{font-size:20px;font-weight:800;margin:6px 0 4px;letter-spacing:-.01em}.ban p{font-size:11px;color:#e0f2fe}
.ban>svg{width:34px;height:34px;color:#e0f2fe;stroke-width:1.6;margin-right:4px}
.cbox{background:#fff;border:1px solid var(--line);border-radius:14px;margin-top:12px;overflow:hidden;box-shadow:0 6px 16px #0f172a0d}
.cm{height:314px;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}
.cm .m{gap:12px}.cm .av{width:26px;height:26px}
.cm .bub{background:#f1f5f9;border:0;border-radius:14px;padding:14px;font-size:12px;max-width:75%;line-height:1.6;color:#0f172a}
.cm .m.u .bub{background:var(--blue);color:#fff}
.cq{display:flex;gap:8px;flex-wrap:wrap;padding:11px 14px;border-top:1px solid #f1f5f9}
.cq button{font:inherit;font-size:10px;background:#f1f5f9;border:0;border-radius:99px;padding:6px 11px;color:#1e293b;cursor:pointer}.cq button:hover{background:#e2e8f0}
.ci{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line)}
.ci input{flex:1;font:inherit;font-size:12px;padding:12px 14px;border:1px solid #cbd5e1;border-radius:9px;color:var(--ink)}
.ci input:focus{outline:2px solid #99f6e4;border-color:var(--teal)}
.ci .btn{padding:0 20px;font-size:12px;border-radius:9px;gap:8px}
.ad2{text-align:center;font-size:9px;color:#94a3b8;margin-top:12px}
/* food database */
#foodview{padding:40px 0 64px}#foodview .wrap{max-width:1020px}
.fh{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:34px 0 6px}.fs{font-size:14px;color:var(--mut);margin-bottom:28px}
.sbox{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px}
.sin{position:relative}.sin svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#94a3b8;font-size:16px}
.sin input{width:100%;font:inherit;font-size:12px;padding:13px 16px 13px 40px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink)}
.sin input:focus{outline:2px solid #99f6e4;border-color:var(--teal)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 4px}
.chips button{font:inherit;font-size:10px;font-weight:500;border:0;border-radius:7px;padding:7px 11px;background:#f1f5f9;color:#334155;cursor:pointer}
.chips button:hover{background:#e2e8f0}.chips button.on{background:var(--teal);color:#fff}
.fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.fd1{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 16px 16px;transition:box-shadow .2s}
.fd1:hover{box-shadow:0 8px 20px #0f172a14}
.fd1 .t{display:flex;justify-content:space-between;align-items:center;gap:8px}.fd1 h3{font-size:13px;font-weight:700}
.kc{font-size:10px;font-weight:600;color:#0f766e;background:#ecfdf5;border-radius:99px;padding:3px 10px;white-space:nowrap}
.fd1 .u{font-size:10px;color:var(--soft);margin:6px 0 14px;padding-bottom:12px;border-bottom:1px solid #f1f5f9}
.mm{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.mm div{background:#f8fafc;border-radius:8px;text-align:center;padding:8px 4px}
.mm small{display:block;font-size:9px;color:var(--soft)}.mm b{font-size:11px}
.empty{grid-column:1/-1;text-align:center;color:var(--mut);font-size:13px;padding:40px 0}
@media(max-width:960px){.fgrid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.fgrid{grid-template-columns:1fr}}
@media(max-width:960px){.cg{grid-template-columns:1fr}.r3{grid-template-columns:1fr}}
@media(max-width:960px){nav{display:none}.hero .wrap{grid-template-columns:1fr;gap:40px}.g4{grid-template-columns:repeat(2,1fr)}.ai-box{grid-template-columns:1fr}.g3{grid-template-columns:1fr}.fg{grid-template-columns:1fr 1fr}.demo .tabs{display:none}}
@media(max-width:520px){.g4{grid-template-columns:1fr}.hr .btn{display:none}.two{grid-template-columns:1fr}}
nav li{list-style:none}nav li.ai a{color:var(--teal);font-weight:600}
.fc-content{max-width:760px;margin:0 auto;padding:48px 24px}.fc-content h1{font-size:34px;margin:0 0 18px}.fc-content h2{font-size:24px;margin:24px 0 12px}.fc-content p{margin-bottom:14px;color:var(--mut)}
/* standalone additions */
.fc-content ul,.fc-content ol{margin:0 0 16px 22px;color:var(--mut)}.fc-content li{margin-bottom:8px}
.fc-content a{color:var(--teal);text-decoration:underline}.fc-content h3{font-size:18px;margin:20px 0 8px}
.fc-content .meta{font-size:12px;color:var(--soft);margin-bottom:22px;display:flex;gap:10px;flex-wrap:wrap}
.fc-content .back{display:inline-block;font-size:13px;font-weight:600;margin-bottom:18px;text-decoration:none}
.fc-content .note{background:#f0fdfa;border:1px solid #99f6e4;border-radius:10px;padding:14px 16px;font-size:13px;color:#0f766e;margin:18px 0}
.fc-content .err{background:#fff1f2;border:1px solid #fecdd3;color:#be123c;border-radius:10px;padding:14px 16px;font-size:13px;margin-bottom:18px}
.cform label{display:block;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#1e293b;margin:0 0 7px}
.cform input,.cform textarea{width:100%;font:inherit;font-size:14px;padding:12px 16px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink);margin-bottom:18px}
.cform textarea{min-height:150px;resize:vertical}
.cform input:focus,.cform textarea:focus{outline:2px solid #99f6e4;border-color:var(--teal)}
.cform .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.blog-wrap{max-width:1020px;margin:0 auto;padding:48px 24px 64px}.blog-wrap h1{font-size:34px;margin:0 0 8px}.blog-wrap>p{color:var(--mut);margin-bottom:10px}
nav a.on{color:var(--teal)}