/* ============ DoseYield — design system ============ */
:root{
  --ink:#0B0A09;
  --ink-2:#16130F;
  --ink-3:#211C16;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --txt:#F6F1E9;
  --txt-2:#B9AC9C;
  --txt-3:#7D7266;
  --amber:#E39A47;
  --amber-2:#FFC178;
  --amber-deep:#8A5220;
  --crema:#F0D9B5;
  --ok:#7FD08A;
  --bad:#F0785F;
  --r-sm:10px; --r:16px; --r-lg:24px; --r-xl:32px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.75);
  --shadow-soft:0 10px 30px -12px rgba(0,0,0,.6);
  --ff:"Instrument Sans","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --ff-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
html{overflow-x:clip}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ff);background:var(--ink);color:var(--txt);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  font-feature-settings:"ss01","cv11";
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 15% -8%,rgba(227,154,71,.13),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(255,193,120,.07),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
a{color:var(--amber-2);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}

.shell{position:relative;z-index:1}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 22px}
.container-narrow{max-width:780px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  background:rgba(11,10,9,.72);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--txt);text-decoration:none}
.brand:hover{text-decoration:none}
.brand .mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--amber-2),var(--amber) 55%,var(--amber-deep));
  box-shadow:0 6px 20px -6px rgba(227,154,71,.75),inset 0 1px 0 rgba(255,255,255,.4);
  color:#1A1108;flex:none;
}
.brand .mark svg{width:19px;height:19px}
.brand em{font-style:normal;color:var(--amber-2)}
.nav-links{display:flex;gap:6px;margin-left:auto;align-items:center}
.nav-links a{
  color:var(--txt-2);font-size:14.5px;font-weight:500;padding:9px 13px;border-radius:9px;
  text-decoration:none;transition:color .16s,background .16s;white-space:nowrap;
}
.nav-links a:hover{color:var(--txt);background:rgba(255,255,255,.05);text-decoration:none}
.nav-links a.active{color:var(--txt)}
.nav-cta{
  margin-left:8px;padding:10px 18px !important;border-radius:11px !important;
  background:linear-gradient(160deg,var(--amber-2),var(--amber)) !important;
  color:#1A1108 !important;font-weight:700 !important;
  box-shadow:0 8px 24px -10px rgba(227,154,71,.9);
}
.nav-cta:hover{transform:translateY(-1px);text-decoration:none}
.burger{display:none;margin-left:auto;background:transparent;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:var(--txt);border-radius:2px;margin:4px 0;transition:.2s}

/* ---------- hero ---------- */
.hero{padding:64px 0 24px;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(227,154,71,.1);border:1px solid rgba(227,154,71,.24);
  color:var(--amber-2);font-size:12.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
h1{
  font-size:clamp(34px,6.2vw,62px);line-height:1.04;letter-spacing:-.035em;font-weight:800;
  margin-bottom:20px;
}
h1 .grad{
  background:linear-gradient(120deg,var(--amber-2),var(--amber) 45%,#C97A3C);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{font-size:clamp(16px,2.1vw,19px);color:var(--txt-2);max-width:640px;margin:0 auto 34px}

/* ---------- calculator card ---------- */
.calc{
  background:linear-gradient(170deg,rgba(34,28,21,.96),rgba(18,15,12,.98));
  border:1px solid var(--line-strong);border-radius:var(--r-xl);
  box-shadow:var(--shadow);overflow:hidden;
}
.calc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line);background:rgba(0,0,0,.22)}
.calc-dots{display:flex;gap:6px}
.calc-dots i{width:9px;height:9px;border-radius:50%;background:#3a322a;display:block}
.calc-title{font-size:12.5px;color:var(--txt-3);font-family:var(--ff-mono);letter-spacing:.08em;text-transform:uppercase}
.calc-body{padding:26px 22px 22px}

.seg{
  display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:5px;border-radius:14px;
  background:rgba(0,0,0,.34);border:1px solid var(--line);margin-bottom:22px;
}
.seg button{
  border:0;background:transparent;color:var(--txt-2);font-weight:600;font-size:14.5px;
  padding:12px;border-radius:10px;cursor:pointer;transition:.18s;
}
.seg button[aria-selected="true"]{
  background:linear-gradient(170deg,rgba(227,154,71,.95),rgba(200,124,55,.95));
  color:#1A1108;box-shadow:0 6px 18px -8px rgba(227,154,71,.9);
}

.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.chip{
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);color:var(--txt-2);
  padding:8px 15px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;
  transition:.16s;white-space:nowrap;
}
.chip:hover{border-color:rgba(227,154,71,.55);color:var(--amber-2);background:rgba(227,154,71,.08)}
.chip.is-on{background:rgba(227,154,71,.14);border-color:rgba(227,154,71,.5);color:var(--amber-2)}

.field{margin-bottom:22px}
.field-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:11px}
.field-head .lbl{font-size:14px;color:var(--txt-2);font-weight:500}
.field-head .val{
  font-family:var(--ff-mono);font-size:19px;font-weight:600;color:var(--txt);
  letter-spacing:-.01em;
}
.field-head .val u{text-decoration:none;font-size:12px;color:var(--txt-3);margin-left:3px;font-weight:400}

input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:99px;
  background:linear-gradient(90deg,var(--amber) var(--pct,50%),rgba(255,255,255,.08) var(--pct,50%));
  outline:0;cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:26px;height:26px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#fff,var(--crema) 45%,var(--amber));
  border:2px solid #2a2118;cursor:grab;
  box-shadow:0 4px 14px -2px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.14);
  transition:transform .12s;
}
input[type=range]:active::-webkit-slider-thumb{cursor:grabbing;transform:scale(1.08)}
input[type=range]::-moz-range-thumb{
  width:24px;height:24px;border-radius:50%;border:2px solid #2a2118;
  background:radial-gradient(circle at 35% 30%,#fff,var(--crema) 45%,var(--amber));
  box-shadow:0 4px 14px -2px rgba(0,0,0,.7);
}
input[type=range]::-moz-range-track{height:8px;border-radius:99px;background:rgba(255,255,255,.08)}

.num-inline{
  display:inline-flex;align-items:center;gap:0;border:1px solid var(--line-strong);
  border-radius:10px;overflow:hidden;background:rgba(0,0,0,.3);
}
.num-inline input{
  width:76px;background:transparent;border:0;text-align:center;padding:7px 4px;
  font-family:var(--ff-mono);font-size:15px;font-weight:600;
}
.num-inline input:focus{outline:0;background:rgba(227,154,71,.08)}
.num-inline .unit{padding:0 10px 0 0;font-size:12px;color:var(--txt-3)}

/* output */
.output{
  display:grid;grid-template-columns:1.15fr 1fr;gap:20px;margin-top:28px;
  padding-top:26px;border-top:1px solid var(--line);
}
.yield-box{
  background:linear-gradient(155deg,rgba(227,154,71,.14),rgba(227,154,71,.03));
  border:1px solid rgba(227,154,71,.3);border-radius:var(--r-lg);
  padding:24px 22px;position:relative;overflow:hidden;
}
.yield-box::after{
  content:"";position:absolute;right:-40px;top:-40px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,193,120,.22),transparent 70%);
}
.yield-box .cap{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--amber-2);font-weight:600;margin-bottom:8px}
.yield-num{
  font-size:clamp(46px,10vw,72px);font-weight:800;line-height:.95;letter-spacing:-.045em;
  font-variant-numeric:tabular-nums;
}
.yield-num small{font-size:.3em;font-weight:600;color:var(--txt-2);margin-left:6px;letter-spacing:0}
.yield-sub{font-size:13.5px;color:var(--txt-2);margin-top:12px;position:relative}

.breakdown{display:flex;flex-direction:column;gap:10px}
.bd-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 15px;background:rgba(255,255,255,.035);border:1px solid var(--line);
  border-radius:12px;
}
.bd-row .k{font-size:12.5px;color:var(--txt-3);text-transform:uppercase;letter-spacing:.06em}
.bd-row .v{font-size:15px;font-weight:700;font-family:var(--ff-mono)}
.bd-row .v.warm{color:var(--amber-2)}

.notice{
  display:flex;gap:12px;align-items:flex-start;margin-top:20px;padding:14px 16px;
  background:rgba(127,208,138,.07);border:1px solid rgba(127,208,138,.22);
  border-radius:12px;font-size:13.5px;color:#cfe4d2;line-height:1.5;
}
.notice.warn{background:rgba(240,120,95,.07);border-color:rgba(240,120,95,.24);color:#f3d3cb}
.notice .ico{flex:none;margin-top:1px}

/* ---------- sections ---------- */
section.block{padding:56px 0}
.sec-head{text-align:center;max-width:620px;margin:0 auto 36px}
.sec-head h2{font-size:clamp(24px,3.6vw,34px);letter-spacing:-.03em;font-weight:750;margin-bottom:12px}
.sec-head p{color:var(--txt-2);font-size:15.5px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{
  background:linear-gradient(170deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  transition:.2s;position:relative;overflow:hidden;
}
.card:hover{border-color:rgba(227,154,71,.4);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.card .ic{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(227,154,71,.12);border:1px solid rgba(227,154,71,.24);color:var(--amber-2);
}
.card h3{font-size:17px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px;color:var(--txt)}
.card p{font-size:14px;color:var(--txt-2);line-height:1.55}
.card a.stretch{position:absolute;inset:0;border-radius:inherit}

.prose{font-size:15.5px;color:var(--txt-2);line-height:1.75}
.prose h2{font-size:24px;color:var(--txt);margin:34px 0 14px;letter-spacing:-.02em}
.prose h3{font-size:18px;color:var(--txt);margin:26px 0 10px}
.prose p{margin-bottom:14px}
.prose ul,.prose ol{margin:0 0 16px 22px}
.prose li{margin-bottom:8px}
.prose strong{color:var(--txt)}
.prose code{font-family:var(--ff-mono);font-size:.9em;background:rgba(255,255,255,.07);padding:2px 6px;border-radius:5px;color:var(--amber-2)}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.prose th,.prose td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left}
.prose th{color:var(--txt-3);font-size:12px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.prose td{color:var(--txt-2)}

details.faq{
  border:1px solid var(--line);border-radius:14px;margin-bottom:10px;
  background:rgba(255,255,255,.025);overflow:hidden;
}
details.faq summary{
  padding:16px 20px;cursor:pointer;font-weight:600;font-size:15px;color:var(--txt);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";color:var(--amber);font-size:20px;font-weight:400;transition:.2s;flex:none}
details.faq[open] summary::after{transform:rotate(45deg)}
details.faq .a{padding:0 20px 18px;color:var(--txt-2);font-size:14.5px;line-height:1.7}

.cta-band{
  margin:56px 0;padding:44px 32px;border-radius:var(--r-xl);text-align:center;
  background:linear-gradient(150deg,rgba(227,154,71,.16),rgba(227,154,71,.04));
  border:1px solid rgba(227,154,71,.26);
}
.cta-band h2{font-size:clamp(22px,3.4vw,30px);letter-spacing:-.025em;margin-bottom:10px}
.cta-band p{color:var(--txt-2);margin-bottom:24px;font-size:15px}
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:13px;
  font-weight:700;font-size:15px;border:0;cursor:pointer;transition:.18s;text-decoration:none;
}
.btn-primary{
  background:linear-gradient(160deg,var(--amber-2),var(--amber));color:#1A1108;
  box-shadow:0 12px 30px -12px rgba(227,154,71,.95);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 36px -12px rgba(227,154,71,1);text-decoration:none}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--txt);border:1px solid var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.1);text-decoration:none}
.btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:52px 0 34px;margin-top:40px;background:rgba(0,0,0,.25)}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px;margin-bottom:38px}
.foot-brand p{font-size:13.5px;color:var(--txt-3);margin-top:12px;max-width:270px;line-height:1.65}
.foot-col h4{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--txt-3);margin-bottom:14px;font-weight:600}
.foot-col a{display:block;color:var(--txt-2);font-size:14px;padding:5px 0;text-decoration:none}
.foot-col a:hover{color:var(--amber-2);text-decoration:none}
.foot-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--txt-3)}

/* breadcrumb */
.crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--txt-3);padding:22px 0 0;flex-wrap:wrap}
.crumbs a{color:var(--txt-3)}
.crumbs a:hover{color:var(--amber-2)}
.crumbs span.sep{opacity:.4}

/* article */
.post-head{padding:18px 0 30px}
.post-head h1{font-size:clamp(28px,4.6vw,44px);margin-bottom:14px}
.post-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--txt-3)}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;background:rgba(227,154,71,.1);border:1px solid rgba(227,154,71,.22);color:var(--amber-2);font-size:12px;font-weight:600}

@media(max-width:480px){
  .container{padding-left:18px;padding-right:18px}
  .brand{font-size:17px}
  .hero h1{font-size:30px}
  .calc-head{padding:16px 16px 12px}
  .output-num{font-size:44px}
  .chips{gap:7px}
  .chip{font-size:12.5px;padding:7px 11px}
  .ratio-table{font-size:11.5px;min-width:0;width:100%}
  .ratio-table th,.ratio-table td{padding:9px 6px;hyphens:auto;word-break:normal;overflow-wrap:break-word;line-height:1.35}
  .ratio-table th,.ratio-table td{padding:9px 8px}
  .section-title h2{font-size:23px}
  .btn{width:100%;justify-content:center}
  .btn-row{flex-direction:column;gap:10px}
  input[type=range]{height:28px}
  input[type=number]{font-size:16px}
}

/* table of ratios */
.ratio-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:22px 0;border-radius:var(--r-lg)}
.ratio-table{width:100%;max-width:680px;border-collapse:separate;border-spacing:0;font-size:14.5px;margin:0;table-layout:auto}


.ratio-table th{
  text-align:left;padding:12px 16px;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--txt-3);border-bottom:1px solid var(--line-strong);font-weight:600;
}
.ratio-table td{padding:14px 16px;border-bottom:1px solid var(--line);color:var(--txt-2)}
.ratio-table tr:hover td{background:rgba(255,255,255,.025)}
.ratio-table td:first-child{color:var(--txt);font-weight:600}

/* responsive */
@media(max-width:900px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .output{grid-template-columns:1fr}
}
@media(max-width:720px){
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;padding:12px;
    background:rgba(14,12,10,.98);border-bottom:1px solid var(--line);
    backdrop-filter:blur(20px);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px}
  .nav-cta{margin-left:0;text-align:center}
  .burger{display:block}
  .hero{padding:44px 0 16px}
  .calc-body{padding:20px 16px 18px}
  .yield-box{padding:20px 18px}
  section.block{padding:40px 0}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* ---- enhancement: skip link, focus, cookie bar ---- */
.skip-link{position:absolute;left:-9999px;top:0;z-index:100;padding:10px 16px;background:var(--amber);color:#1A1108;font-weight:700;border-radius:0 0 var(--r-lg) 0}
.skip-link:focus{left:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.consent{position:fixed;left:16px;right:16px;bottom:16px;z-index:90;display:none;gap:16px;align-items:center;
  background:#1D1409;border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:14px 16px;
  box-shadow:0 18px 44px rgba(0,0,0,.5);font-size:13.5px;color:var(--txt-2);max-width:760px;margin:0 auto}
.consent.show{display:flex}
.consent p{margin:0;flex:1;line-height:1.5}
.consent a{color:var(--amber)}
.consent button{flex:0 0 auto;background:var(--amber);color:#1A1108;border:0;font:inherit;font-weight:700;
  padding:9px 16px;border-radius:999px;cursor:pointer}
@media(max-width:560px){.consent{flex-direction:column;align-items:stretch;text-align:left}}