:root{
  --bg:#f6f1e9;--card:#fffdfa;--panel2:#f4e8d8;--panel3:#fbf7f1;
  --ink:#1c1916;--ink2:#2a2622;--muted:#736a5e;--border:#e7dcc9;--line:#d9ccb6;
  --accent:#c1440e;--accent-dark:#9c380b;--accent-soft:#fde7dc;--accent-light:#ffb08a;
  --navy:#1f3a5f;--navy-soft:#e7edf3;
  --r-xl:26px;--r-lg:20px;--r-md:14px;--r-sm:10px;
  --shadow-sm:0 1px 2px rgba(28,25,22,.05),0 4px 14px rgba(28,25,22,.05);
  --shadow-md:0 2px 4px rgba(28,25,22,.06),0 18px 40px rgba(28,25,22,.09);
  --display:"Space Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:880px}
.icon{display:block;flex:none}
.icon svg{width:100%;height:100%;display:block}

/* ---------- Header ---------- */
header.site{position:sticky;top:0;z-index:40;background:rgba(246,241,233,.86);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--border)}
header.site .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand .mark{width:30px;height:30px;color:var(--accent)}
.brand .word b{font-weight:700;color:var(--accent);margin-inline-start:4px}
nav.desk{display:none;align-items:center;gap:22px}
nav.desk>a{color:var(--muted);font-size:14.5px;font-weight:600;padding:6px 0;border-bottom:2px solid transparent}
nav.desk>a:hover{color:var(--ink);border-color:var(--accent)}
.lang-switch{position:relative}
.lang-switch summary{list-style:none;cursor:pointer;font-size:13px;font-weight:600;color:var(--ink);border:1.5px solid var(--border);border-radius:999px;padding:8px 14px;display:flex;align-items:center;gap:8px;background:var(--card)}
.lang-switch summary::after{content:"";width:7px;height:7px;border-inline-end:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.lang-switch summary::-webkit-details-marker{display:none}
.lang-switch[open] summary{border-color:var(--accent)}
.lang-menu{position:absolute;inset-inline-end:0;top:calc(100% + 10px);background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:8px;box-shadow:var(--shadow-md);display:grid;grid-template-columns:repeat(3,minmax(120px,1fr));gap:2px;z-index:50;max-height:70vh;overflow:auto}
.lang-menu a{display:block;padding:8px 10px;border-radius:8px;font-size:13px;color:var(--ink)}
.lang-menu a:hover{background:var(--panel2)}
.lang-menu a.current,.lang-grid a.current,.foot-langs a.current{color:var(--accent);font-weight:700}
.burger{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1.5px solid var(--border);border-radius:999px;padding:9px 14px;cursor:pointer;color:var(--ink);font-weight:700;font-size:13px}
.burger .bars{display:flex;flex-direction:column;gap:4px}
.burger .bars i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger em{font-style:normal}
.drawer{position:fixed;inset:0;z-index:60;background:var(--bg);padding:14px 20px 40px;overflow:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--border);background:var(--card);font-size:18px;cursor:pointer;color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;margin-top:26px;border-top:1px solid var(--border)}
.drawer-nav a{font-family:var(--display);font-weight:700;font-size:24px;padding:16px 0;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.drawer-nav a::after{content:"→";color:var(--accent);font-size:20px}
.drawer-langs{margin-top:28px}
.lang-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.lang-grid a{padding:10px 12px;border-radius:10px;background:var(--card);border:1px solid var(--border);font-size:14px}
@media(min-width:900px){nav.desk{display:flex}.burger{display:none}}

/* ---------- Typography helpers ---------- */
.eyebrow,.section-eyebrow{font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}
h1{font-family:var(--display);font-weight:700;letter-spacing:-.015em;font-size:clamp(30px,5vw,44px);line-height:1.1;margin:0 0 14px}
.lead{color:var(--muted);font-size:17px;max-width:58ch;margin:0 0 26px}
.section-title{font-family:var(--display);font-weight:700;letter-spacing:-.01em;font-size:clamp(24px,3.4vw,32px);line-height:1.15;margin:0 0 10px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:22px}
.section-head .lead{margin-bottom:0}
.section-head.center{justify-content:center;text-align:center}
.crumbs{font-size:13px;color:var(--muted);margin:22px 0 0;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a:hover{color:var(--ink)}
.kicker{display:block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:700;font-size:15px;border:1.5px solid transparent;transition:transform .15s,background .15s,border-color .15s,color .15s}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn.ghost{background:var(--card);border-color:var(--border);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}
.btn .arrow{transition:transform .15s}
.btn:hover .arrow{transform:translateX(3px)}
button.calc{width:100%;padding:16px 18px;border:0;border-radius:999px;background:var(--ink);color:#fff;font:700 16px var(--sans);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:background .15s,transform .15s;margin-top:6px}
button.calc:hover{background:var(--accent);transform:translateY(-1px)}
button.calc .arrow{transition:transform .15s}
button.calc:hover .arrow{transform:translateX(3px)}
.linkish{background:none;border:0;color:var(--muted);font-size:13px;font-weight:600;text-decoration:underline;text-underline-offset:3px;cursor:pointer;margin-top:12px;padding:4px 0}
.linkish:hover{color:var(--ink)}

/* ---------- Home hero ---------- */
.hero{padding:44px 0 26px;position:relative;overflow:hidden}
.hero-grid{display:grid;gap:26px;align-items:center}
.hero-text h1{font-size:clamp(36px,6vw,62px);line-height:1.04;margin-bottom:18px}
.hero-text h1 .accent{display:block;color:var(--accent)}
.hero-text .lead{font-size:18px;max-width:52ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-art svg{width:100%;height:auto;max-width:560px;margin:0 auto;display:block}
.hero-art .chip{filter:drop-shadow(0 8px 18px rgba(28,25,22,.12))}
@media(min-width:900px){.hero{padding:70px 0 40px}.hero-grid{grid-template-columns:1.05fr 1fr;gap:40px}}

/* ---------- Stats band ---------- */
.stats{background:var(--ink);color:#fff;margin:24px 0 0}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 26px;padding:30px 20px}
.stats-grid b{display:block;font-family:var(--display);font-size:clamp(30px,4vw,44px);line-height:1;color:var(--accent-light);font-variant-numeric:tabular-nums}
.stats-grid span{display:block;color:#cfc6b8;font-size:13.5px;margin-top:6px;text-transform:uppercase;letter-spacing:.06em}
@media(min-width:720px){.stats-grid{grid-template-columns:repeat(4,1fr);padding:38px 20px}}

/* ---------- Sections ---------- */
section.featured,section.browse{padding-top:64px}
section.how{background:var(--panel2);margin-top:72px;padding:64px 0}
.how-grid{display:grid;gap:18px}
.how-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-sm);position:relative}
.how-art{background:var(--panel3);border-radius:var(--r-md);padding:10px;margin-bottom:16px}
.how-art svg{width:100%;height:auto;max-height:110px}
.how-card .step-num{position:absolute;top:14px;inset-inline-end:14px}
.how-card h3{font-family:var(--display);font-size:18px;margin:0 0 6px}
.how-card p{color:var(--muted);margin:0;font-size:14.5px}
@media(min-width:720px){.how-grid{grid-template-columns:repeat(3,1fr)}}
.page-hero{padding:44px 0 18px}
.page-hero h1{max-width:22ch}
.group-block{margin:34px 0 0}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.group-head .icon{width:34px;height:34px;color:var(--accent);background:var(--accent-soft);border-radius:10px;padding:6px}
.group-head h2{font-family:var(--display);font-size:22px;margin:0}

/* ---------- Cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:600px){.card-grid{grid-template-columns:1fr 1fr}}
@media(min-width:960px){section.browse .card-grid,.page-hero+.group-block .card-grid,.group-block .card-grid{grid-template-columns:repeat(3,1fr)}.narrow .card-grid{grid-template-columns:1fr 1fr}}
.tool-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-sm);transition:transform .18s,border-color .18s,box-shadow .18s;position:relative}
.tool-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-md)}
.tool-card .icon{width:44px;height:44px;color:var(--accent);background:var(--accent-soft);border-radius:12px;padding:9px;margin-bottom:14px}
.tool-card strong{display:block;font-family:var(--display);font-weight:700;font-size:17px;line-height:1.25;margin-bottom:6px}
.tool-card small{display:block;color:var(--muted);font-size:13.5px;line-height:1.5;flex:1}
.tool-card .go{display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--accent)}

/* ---------- Tool widget ---------- */
.tool-hero{position:relative;padding-top:24px}
.tool-hero .hero-icon{width:56px;height:56px;color:var(--accent);background:var(--accent-soft);border-radius:16px;padding:12px;margin-bottom:16px}
.tool-widget{display:grid;gap:18px}
@media(min-width:900px){.narrow .tool-widget{grid-template-columns:1fr 1fr;align-items:start}section.featured .tool-widget{grid-template-columns:1fr 1.2fr;align-items:start}}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--r-xl);padding:26px;box-shadow:var(--shadow-sm)}
.step.result-step{background:linear-gradient(160deg,#fbefe4 0%,var(--panel2) 100%);border-color:#ecd9c4}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.step-num{width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:700;font-size:14px;flex:none}
.step-title{font-family:var(--display);font-weight:700;font-size:17px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px}
.field input,.field select{width:100%;padding:13px 15px;border-radius:var(--r-sm);border:1.5px solid var(--border);background:var(--card);color:var(--ink);font:600 16px/1.3 var(--sans);transition:border-color .15s,box-shadow .15s}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(193,68,14,.12)}
.has-error .field input{border-color:#c62828}
.result-figure .num{font-family:var(--display);font-weight:700;font-size:clamp(40px,8vw,58px);line-height:1;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.result-figure .num .u{font-size:.38em;font-weight:600;color:var(--muted);margin-inline-start:8px}
.result-figure .cap{color:var(--muted);font-size:15px;margin-top:8px}
.result-rest{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:16px}
.result-rest .stat b{display:block;font-family:var(--display);font-weight:700;font-size:19px;font-variant-numeric:tabular-nums}
.result-rest .stat span{display:block;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-top:2px}
.diagram{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.diagram svg{width:100%;height:auto;display:block;max-width:440px;margin:0 auto}
.carried{display:none;font-size:13px;font-weight:600;color:var(--navy);background:var(--navy-soft);border:1px solid #cdd9e6;border-radius:999px;padding:8px 14px;margin-bottom:16px;width:fit-content}
.carried.show{display:block}
.share-row{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.share-row button{padding:10px 18px;border-radius:999px;border:1.5px solid var(--line);background:var(--card);color:var(--ink);font:600 13px var(--sans);cursor:pointer}
.share-row button:hover{border-color:var(--ink)}
.share-row button.done{border-color:var(--accent);color:var(--accent)}

/* ---------- Info ---------- */
section.info{margin-top:34px}
.info-grid{display:grid;gap:16px}
@media(min-width:640px){.info-grid{grid-template-columns:1fr 1fr}}
.info-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:18px 20px}
.info-card h2{font-family:var(--display);font-size:15px;margin:0 0 10px}
.info-card p{color:var(--muted);font-size:14.5px;margin:0;line-height:1.6}
.formula-text{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;color:var(--ink);background:var(--panel2);border-radius:8px;padding:10px 12px;display:inline-block;line-height:1.5}
.explain-card{display:flex;gap:16px;margin-top:16px;background:var(--navy-soft);border:1px solid #cdd9e6;border-radius:var(--r-md);padding:18px 20px}
.explain-card .icon{width:40px;height:40px;color:var(--navy);background:#fff;border-radius:12px;padding:8px}
.explain-card h2{font-family:var(--display);font-size:15px;margin:0 0 6px;color:var(--navy)}
.explain-card p{margin:0;color:var(--ink2);font-size:14.5px;line-height:1.6}
.next-tools{margin-top:44px}

/* ---------- Magazine ---------- */
section.mag{margin-top:72px}
.mag-grid{display:grid;gap:16px}
@media(min-width:720px){.mag-grid{grid-template-columns:repeat(3,1fr)}}
.mag-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s}
.mag-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.mag-card img,.mag-noimg{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--panel2)}
.mag-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.mag-body strong{font-family:var(--display);font-size:16px;line-height:1.3;margin-bottom:8px}
.mag-body small{color:var(--muted);font-size:13.5px;line-height:1.5;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mag-body .go{margin-top:12px;font-size:13px;font-weight:700;color:var(--accent)}

/* ---------- Footer ---------- */
footer.site{margin-top:80px;background:var(--ink);color:#e9e2d6}
footer.site .wrap{padding-top:52px;padding-bottom:28px}
.foot-grid{display:grid;gap:30px}
@media(min-width:800px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand .brand{color:#fff}
.foot-brand .brand .mark{color:var(--accent-light)}
.foot-brand .brand .word b{color:var(--accent-light)}
.foot-brand p{color:#b9b0a2;margin:12px 0 0;max-width:34ch}
footer .col h3{font-family:var(--display);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#fff;margin:0 0 12px}
footer .col a{display:block;font-size:14px;color:#cfc6b8;margin-bottom:8px}
footer .col a:hover{color:#fff}
.foot-langs{display:flex;flex-wrap:wrap;gap:6px}
.foot-langs a{display:inline-block;padding:5px 9px;border:1px solid #3a342e;border-radius:999px;font-size:12.5px;margin:0}
.foot-legal{margin-top:36px;padding-top:18px;border-top:1px solid #3a342e;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#b9b0a2}
.legal-links a{margin-inline-start:14px}
.legal-links a:hover{color:#fff}

/* ---------- RTL / motion ---------- */
[dir="rtl"] .btn:hover .arrow,[dir="rtl"] button.calc:hover .arrow{transform:translateX(-3px)}
[dir="rtl"] .lang-menu{inset-inline-end:auto;inset-inline-start:0}
[dir="rtl"] .drawer-nav a::after{content:"←"}
[dir="rtl"] .legal-links a{margin-inline-start:0;margin-inline-end:14px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---------- Magazine ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chips a{padding:8px 14px;border-radius:999px;border:1.5px solid var(--border);background:var(--card);font-size:13.5px;font-weight:600;color:var(--muted)}
.chips a:hover{border-color:var(--ink);color:var(--ink)}
.chips a.on{background:var(--ink);border-color:var(--ink);color:#fff}
.mag-featured{margin:26px 0 18px}
.mag-card.large{display:grid}
@media(min-width:800px){.mag-card.large{grid-template-columns:1.2fr 1fr;align-items:stretch}.mag-card.large img,.mag-card.large .mag-noimg{height:100%;aspect-ratio:auto;min-height:320px}.mag-card.large .mag-body{padding:34px}.mag-card.large strong{font-size:26px;line-height:1.2}.mag-card.large small{font-size:15px;-webkit-line-clamp:4}}
.article .article-head{padding-top:22px;margin-bottom:22px}
.article h1{font-size:clamp(28px,4.4vw,42px);max-width:26ch}
.article-meta{display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--muted);font-size:13.5px;margin:0}
.article-meta span+span::before{content:"·";margin-inline-end:18px;color:var(--line)}
.article-cover{margin:0 0 28px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-md)}
.prose{font-size:17.5px;line-height:1.75;color:var(--ink2);max-width:70ch}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{font-family:var(--display);font-size:clamp(22px,3vw,28px);line-height:1.2;margin:2em 0 .7em;color:var(--ink);letter-spacing:-.01em}
.prose h3{font-family:var(--display);font-size:20px;margin:1.6em 0 .5em;color:var(--ink)}
.prose h4{font-size:17px;margin:1.4em 0 .4em}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.prose ul,.prose ol{padding-inline-start:1.3em;margin:0 0 1.2em}
.prose li{margin-bottom:.4em}
.prose li::marker{color:var(--accent)}
.prose img{border-radius:var(--r-md);margin:1.4em auto;box-shadow:var(--shadow-sm)}
.prose blockquote{margin:1.6em 0;padding:16px 22px;border-inline-start:4px solid var(--accent);background:var(--card);border-radius:0 var(--r-md) var(--r-md) 0;font-style:italic;color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--border);padding:10px 12px;text-align:start;vertical-align:top}
.prose th{background:var(--panel2);font-weight:700}
.prose hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.prose strong{color:var(--ink)}
.article .next-tools{margin-top:56px}
.related{margin-top:56px}
.magazine .page-hero .lead{margin-bottom:18px}