/* Coffee Ratio Lab — "method card" design system */
:root{
  --paper:#F6EEE1; --paper-2:#EFE3D0; --card:#FFFBF4; --ink:#2B1D14; --ink-2:#5B4A3E;
  --terra:#B4532A; --crema:#D9A15B; --sage:#8A9A73; --blue:#35566B; --line:#2B1D14;
  --shadow:6px 6px 0 var(--ink); --radius:18px;
  --serif:"Fraunces", Georgia, "Times New Roman", serif;
  --sans:"Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
[data-theme="dark"]{
  --paper:#1C1511; --paper-2:#251C17; --card:#2A201A; --ink:#F3E7D6; --ink-2:#CDBBA6; --line:#F3E7D6;
  --terra:#E07A4F; --crema:#E3B474; --sage:#A9B993; --blue:#7FA6BF; --shadow:6px 6px 0 #000;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.7 var(--sans);
  background-image:radial-gradient(color-mix(in srgb,var(--ink) 9%,transparent) 1px,transparent 1.2px);background-size:22px 22px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-color:var(--terra);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:var(--terra)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--card);padding:8px 12px;z-index:99}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.narrow{max-width:760px}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:2px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{width:44px;height:44px;border-radius:12px;border:2px solid var(--line)}
.brand b{font:700 25px/1 var(--serif);letter-spacing:-.5px}
.brand b i{color:var(--terra);font-style:italic;font-weight:600}
.nav{margin-left:auto;display:flex;gap:6px;align-items:center}
.nav a{font:600 15px var(--sans);text-decoration:none;padding:8px 14px;border-radius:999px}
.nav a:hover,.nav a[aria-current]{background:var(--ink);color:var(--paper)}
.icon-btn{border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;width:42px;height:42px;cursor:pointer;font-size:18px}
.menu-btn{display:none}
@media (max-width:820px){.menu-btn{display:block}.nav{display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;background:var(--paper);border-bottom:2px solid var(--line);padding:14px}.nav.open{display:flex}}

/* type */
h1,h2,h3{font-family:var(--serif);line-height:1.15;letter-spacing:-.02em;font-optical-sizing:auto}
h1{font-size:clamp(36px,5vw,60px);font-weight:700;margin:.2em 0 .35em}
h1 em,h2 em{color:var(--terra)}
h2{font-size:clamp(26px,3vw,34px);margin:1.8em 0 .5em}
h3{font-size:22px;margin:1.5em 0 .4em}
.kicker{font:700 13px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--terra)}
.muted{color:var(--ink-2)}

/* pills / cards */
.pill{display:inline-block;font:700 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:7px 11px;border:2px solid var(--line);border-radius:999px;background:var(--card)}
.card{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:transform .15s,box-shadow .15s;text-decoration:none;display:flex;flex-direction:column}
a.card:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--ink);color:inherit}
.card .thumb{aspect-ratio:1200/630;border-bottom:2px solid var(--line);background:var(--paper-2)}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{margin:2px 0 0;font-size:21px}
.card p{margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.55}
.card .meta{margin-top:auto;font:600 13px var(--mono);color:var(--ink-2);padding-top:8px}
.grid{display:grid;gap:28px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}

/* home hero */
.hero{padding:64px 0 40px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero p.lead{font-size:20px;max-width:560px;color:var(--ink-2)}
.hero .stamp{position:relative}
.hero .stamp img{border:2px solid var(--line);border-radius:24px;box-shadow:10px 10px 0 var(--ink);transform:rotate(1.5deg)}
.hero .stamp .sticker{position:absolute;left:-18px;bottom:-22px;background:var(--crema);border:2px solid var(--line);border-radius:999px;padding:12px 18px;font:700 14px var(--mono);transform:rotate(-6deg)}
@media(max-width:900px){.hero{grid-template-columns:1fr}}
.btn{display:inline-flex;align-items:center;gap:8px;font:700 16px var(--sans);padding:13px 22px;border:2px solid var(--line);border-radius:999px;background:var(--terra);color:#fff;text-decoration:none;box-shadow:4px 4px 0 var(--ink);cursor:pointer}
.btn:hover{color:#fff;transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn.ghost{background:var(--card);color:var(--ink)}

/* method picker */
.methods{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin:18px 0 10px}
.methods a{border:2px solid var(--line);border-radius:16px;padding:14px;background:var(--card);text-decoration:none;display:flex;flex-direction:column;gap:6px}
.methods a:hover{background:var(--ink);color:var(--paper)}
.methods b{font:700 18px var(--serif)}
.methods span{font:600 12px var(--mono);opacity:.75}
.section{padding:44px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;border-bottom:2px solid var(--line);padding-bottom:12px;margin-bottom:28px}
.section-head h2{margin:0}
.band{background:var(--ink);color:var(--paper);border-radius:28px;padding:40px;margin:30px 0}
.band a{color:var(--paper)}

/* article */
.crumbs{font:600 13px var(--mono);margin:28px 0 0;color:var(--ink-2)}
.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}
.art-head{padding:10px 0 10px}
.byline{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font:600 14px var(--sans);color:var(--ink-2)}
.byline img{width:34px;height:34px;border-radius:50%;border:2px solid var(--line)}
.hero-img{border:2px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden;margin:24px 0 8px}
figcaption{font:500 13px var(--mono);color:var(--ink-2);margin-bottom:20px}
.answer{border:2px solid var(--line);border-radius:var(--radius);background:var(--card);padding:22px 24px;margin:26px 0;position:relative;box-shadow:var(--shadow)}
.answer .kicker{display:block;margin-bottom:8px}
.answer p{margin:0;font-size:18px}
.facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.facts span{font:700 13px var(--mono);background:var(--paper-2);border:2px dashed var(--line);border-radius:10px;padding:7px 10px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px}
@media(max-width:1000px){.layout{grid-template-columns:minmax(0,1fr)}.aside{display:none}}
.aside .sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.toc{border:2px solid var(--line);border-radius:16px;padding:16px 18px;background:var(--card)}
.toc b{font:700 13px var(--mono);letter-spacing:.1em;text-transform:uppercase}
.toc ol{margin:10px 0 0;padding-left:18px;font-size:14.5px;line-height:1.5}
.toc li{margin:6px 0}.toc a{text-decoration:none}
.prose{font-size:18px}
.prose p,.prose li{max-width:72ch}
.prose .table-wrap{overflow-x:auto;border:2px solid var(--line);border-radius:14px;background:var(--card);margin:22px 0}
.prose table{width:100%;border-collapse:separate;border-spacing:0;font-size:15.5px;min-width:520px}
.prose th{background:var(--ink);color:var(--paper);text-align:left;font:700 13px var(--mono);letter-spacing:.04em;text-transform:uppercase}
.prose th,.prose td{padding:11px 14px;border-bottom:1px solid color-mix(in srgb,var(--ink) 18%,transparent);vertical-align:top}
.prose tr:last-child td{border-bottom:0}
.prose tbody tr:nth-child(even){background:color-mix(in srgb,var(--paper-2) 60%,transparent)}
.prose h3{font-size:22px}
.prose ol li::marker{font-family:var(--mono);font-weight:700;color:var(--terra)}
.prose blockquote{border-left:6px solid var(--terra);margin:20px 0;padding:6px 18px;background:var(--card);border-radius:0 12px 12px 0}
.faq h3{border-top:2px dashed color-mix(in srgb,var(--ink) 35%,transparent);padding-top:18px}
.author-box{display:flex;gap:18px;align-items:flex-start;border:2px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--card);margin:40px 0}
.author-box img{width:72px;height:72px;border-radius:16px;border:2px solid var(--line)}
.author-box p{margin:4px 0 0;font-size:15px}

/* ads */
.ad-slot{margin:30px 0;min-height:120px;display:flex;align-items:center;justify-content:center;flex-direction:column}
.ad-slot .ad-label{font:600 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);align-self:center;margin-bottom:6px}
.ad-slot.preview{border:2px dashed color-mix(in srgb,var(--ink) 40%,transparent);border-radius:14px;color:var(--ink-2);font:600 13px var(--mono)}

/* newsletter */
.news{border:2px solid var(--line);border-radius:24px;background:var(--crema);color:#2B1D14;padding:30px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1.1fr;gap:26px;align-items:center;margin:40px 0}
.news h2,.news h3{margin:0 0 6px;color:#2B1D14}
.news p{margin:0}
.news form{display:flex;flex-direction:column;gap:10px}
.news .row{display:flex;gap:10px}
.news input[type=email]{flex:1;font:16px var(--sans);padding:14px 16px;border:2px solid #2B1D14;border-radius:999px;background:#FFFBF4;color:#2B1D14;min-width:0}
.news label.consent{font-size:13px;display:flex;gap:8px;align-items:flex-start;line-height:1.4}
.news .hp{position:absolute;left:-5000px}
.news .msg{font:600 14px var(--sans);min-height:20px}
.news .btn{box-shadow:3px 3px 0 #2B1D14;border-color:#2B1D14}
@media(max-width:760px){.news{grid-template-columns:1fr}.news .row{flex-direction:column}}

/* tools */
.tool{border:2px solid var(--line);border-radius:24px;background:var(--card);box-shadow:var(--shadow);padding:28px;margin:26px 0}
.tool .fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.tool label{display:flex;flex-direction:column;gap:6px;font:700 13px var(--mono);letter-spacing:.04em;text-transform:uppercase}
.tool input,.tool select{font:600 17px var(--sans);padding:12px 14px;border:2px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink)}
.tool input[type=range]{padding:0;accent-color:var(--terra)}
.seg{display:flex;border:2px solid var(--line);border-radius:999px;overflow:hidden;width:max-content;margin-bottom:18px}
.seg button{font:700 14px var(--sans);padding:10px 16px;border:0;background:var(--card);color:var(--ink);cursor:pointer}
.seg button[aria-pressed=true]{background:var(--ink);color:var(--paper)}
.result{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-top:24px}
.result div{background:var(--paper-2);border:2px solid var(--line);border-radius:16px;padding:16px}
.result b{display:block;font:700 34px/1.1 var(--serif)}
.result span{font:600 12px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--ink-2)}
.meter{height:22px;border:2px solid var(--line);border-radius:999px;overflow:hidden;background:var(--paper-2);margin:12px 0}
.meter i{display:block;height:100%;background:var(--sage);transition:width .3s}
.drink-row{display:grid;grid-template-columns:1fr 90px 110px;gap:12px;align-items:center;padding:10px 0;border-bottom:1px dashed color-mix(in srgb,var(--ink) 30%,transparent)}
.drink-row input{width:100%}

/* footer */
.site-foot{border-top:2px solid var(--line);margin-top:60px;padding:46px 0 30px;background:var(--paper-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot-grid h4{font:700 13px var(--mono);letter-spacing:.1em;text-transform:uppercase;margin:0 0 12px}
.foot-grid ul{list-style:none;margin:0;padding:0;line-height:2;font-size:15px}
.foot-grid a{text-decoration:none}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
.legal{margin-top:30px;font-size:13px;color:var(--ink-2);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:auto;background:var(--card);border:2px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:16px 18px;z-index:80;display:none;font-size:14px}
.cookie.show{display:block}.cookie .btns{display:flex;gap:10px;margin-top:10px}
.cookie .btn{padding:9px 16px;font-size:14px}
.tool [hidden]{display:none!important}

.drink-spec{margin:0 0 26px}.drink-spec .result{margin-top:10px}.drink-spec .result b{font:700 18px/1.3 var(--sans)}
.drink .meta span{letter-spacing:1px;color:var(--terra)}
.dx-chip{cursor:pointer;font-size:13px}
.drink-spec .result b span{font-size:22px;letter-spacing:3px;color:var(--terra)}

/* ---- mobile responsive fixes ---- */
.layout>article,.layout>*{min-width:0}
.prose,.prose p,.prose li,.answer p,h1,h2,h3{overflow-wrap:anywhere}
.cs{overflow-x:auto}
.seg{flex-wrap:wrap;max-width:100%}
.fix-band{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;margin:0 0 34px}
@media (max-width:700px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .site-head .wrap{height:64px;gap:10px}
  .brand img{width:36px;height:36px;border-radius:10px}
  .brand b{font-size:19px;white-space:nowrap}
  .icon-btn{width:38px;height:38px}
  .nav{top:64px}
  .hero{padding:32px 0 24px;gap:28px}
  .hero p.lead{font-size:17px}
  .hero .stamp .sticker{left:8px;bottom:-16px;font-size:12px;padding:8px 12px}
  .fix-band{grid-template-columns:1fr}
  .fix-band .btn{justify-self:start}
  h1{font-size:clamp(30px,8.4vw,40px)}
  h2{font-size:clamp(23px,6.5vw,28px)}
  .prose{font-size:16.5px}
  .answer{padding:18px}
  .answer p{font-size:16.5px}
  .tool{padding:18px;border-radius:18px}
  .tool .fields{grid-template-columns:1fr}
  .result{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .result b{font-size:26px}
  .drink-spec .result b{font-size:15px}
  .drink-row{grid-template-columns:1fr 64px;gap:8px}
  .drink-row > span.muted{grid-column:1 / -1;margin-top:-6px;font-size:13px}
  .seg button{padding:9px 12px;font-size:13px}
  .band{padding:24px;border-radius:20px}
  .news{padding:22px;border-radius:18px}
  .section-head{flex-wrap:wrap}
  .grid{grid-template-columns:minmax(0,1fr);gap:22px}
  .crumbs{font-size:12px}
  .card{box-shadow:4px 4px 0 var(--ink)}
  .hero-img,.answer,.tool,.news{box-shadow:4px 4px 0 var(--ink)}
  .methods{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr}
  .author-box{flex-direction:column}
  .cookie{left:10px;right:10px;bottom:10px}
}
@media (max-width:360px){.brand b{font-size:17px}.result{grid-template-columns:minmax(0,1fr)}}
.tool input,.tool select{min-width:0;width:100%;max-width:100%}
.tool input[type=checkbox]{width:22px}
@media (max-width:760px){.news{grid-template-columns:minmax(0,1fr)}.news .row{flex-direction:column}.news .btn{justify-content:center}}
@media (max-width:360px){.news{padding:18px}.tool{padding:14px}}
.drink-spec .result{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:700px){.prose table{min-width:0;font-size:14px}.prose th,.prose td{padding:9px 10px}.prose th{font-size:11px}}