:root{--ink:#18211c;--muted:#5f6c62;--line:#e1e8dd;--paper:#f9faf6;--accent:#bbec79;--green:#2f7a3a;--ease:cubic-bezier(.16,1,.3,1)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}img{max-width:100%;display:block}
a:focus-visible,button:focus-visible{outline:3px solid #69ab43;outline-offset:3px}
::selection{background:#bfef88;color:#142215}
.wrap{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.skip-link{position:fixed;left:12px;top:-100px;background:var(--ink);color:#fff;z-index:50;padding:10px 16px}.skip-link:focus{top:12px}
.top{position:sticky;top:0;z-index:20;background:rgba(249,250,246,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.top .wrap{height:76px;display:flex;align-items:center;gap:28px}
.top .logo img{width:168px;height:auto}
.top nav{display:flex;gap:26px;margin-left:auto;font-size:14px;font-weight:600}
.top nav a{text-decoration:none;color:#3d4a40}.top nav a:hover,.top nav a[aria-current]{color:var(--green)}
.top .cta{text-decoration:none;font-size:14px;font-weight:700;border:1px solid #cfd8cd;border-radius:100px;padding:10px 18px}.top .cta:hover{background:#eef4e9}
.crumbs{font-size:13px;color:#7b877d;margin:44px 0 0}.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--green)}
.crumbs span{margin:0 8px;color:#b4c0b5}
h1,h2,h3{font-family:Manrope,system-ui,sans-serif}
/* article */
.post-head{max-width:820px;margin:28px 0 36px}
.post-cat{font-size:13px;font-weight:700;color:var(--green)}
.post-head h1{font-size:clamp(34px,4.6vw,58px);line-height:1.1;letter-spacing:-.055em;margin:14px 0 22px;font-weight:800}
.post-meta{font-size:14px;color:#7b877d}
.post-cover{border-radius:22px;overflow:hidden;border:1px solid var(--line);margin-bottom:56px}
.post-cover img{width:100%;height:auto;aspect-ratio:2/1;object-fit:cover}
.post-grid{display:grid;grid-template-columns:240px minmax(0,720px);gap:64px;align-items:start}
.toc{position:sticky;top:110px;font-size:14px}
.toc strong{display:block;font-size:13px;margin-bottom:14px}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.toc a{display:block;padding:7px 0 7px 16px;margin-left:-1px;border-left:2px solid transparent;text-decoration:none;color:#69766c;line-height:1.4}
.toc a:hover{color:var(--ink)}.toc a.is-active{color:var(--ink);border-left-color:#79bb48;font-weight:600}
.prose{font-size:17.5px;line-height:1.85;color:#2c372f}
.prose .lead{font-size:20px;line-height:1.7;color:#18211c;margin-top:0}
.prose h2{font-size:clamp(25px,2.4vw,31px);line-height:1.25;letter-spacing:-.035em;margin:56px 0 16px;color:var(--ink)}
.prose h3{font-size:20px;letter-spacing:-.02em;margin:34px 0 8px;color:var(--ink)}
.prose p{margin:0 0 18px}.prose ul,.prose ol{padding-left:22px;margin:0 0 22px}.prose li{margin-bottom:10px}
.prose li::marker{color:#69aa40}.prose strong{color:var(--ink)}
.prose a{color:var(--green);text-underline-offset:3px}
.faq{margin-top:60px;border-top:1px solid var(--line)}
.faq h2{margin-top:44px}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:17px;padding:16px 36px 16px 0;position:relative;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:24px;font-weight:400;color:#69aa40;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 18px;color:#4d5a50}
.post-cta{margin:64px 0 0;padding:34px 36px;border-radius:20px;background:#17211c;color:#eef6ea;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.post-cta p{margin:0;font-size:17px;line-height:1.6;max-width:440px;color:#c9d8c8}.post-cta strong{display:block;color:#fff;font-family:Manrope,system-ui,sans-serif;font-size:21px;margin-bottom:4px}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#17211c;font-weight:800;font-size:14px;text-decoration:none;border-radius:100px;padding:15px 24px;transition:background .2s,transform .3s var(--ease)}
.btn:hover{background:#a7df62;transform:translateY(-2px)}
.related{margin:110px 0 0;padding:70px 0 90px;border-top:1px solid var(--line)}
.related h2{font-size:28px;letter-spacing:-.03em;margin:0 0 30px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{display:flex;flex-direction:column;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color .3s,box-shadow .4s,transform .4s var(--ease)}
.card:hover{border-color:#c9e2b5;box-shadow:0 18px 40px #23321c10;transform:translateY(-4px)}
.card img{width:100%;height:auto;aspect-ratio:8/5;object-fit:cover;background:#f3f7ee}
.card div{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:18px;line-height:1.35;letter-spacing:-.3px;margin:8px 0 12px}
.card p{font-size:14px;line-height:1.7;color:#6a766c;margin:0 0 16px}
.card .meta{font-size:12.5px;color:#879289;margin-top:auto}
.cat{font-size:12px;font-weight:700;color:var(--green)}
/* index */
.index-head{max-width:760px;margin:40px 0 50px}
.index-head h1{font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.055em;margin:0 0 18px}
.index-head p{font-size:18px;line-height:1.7;color:var(--muted);margin:0}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.filters button{font:inherit;font-size:13px;font-weight:700;border:1px solid #d5ddd1;background:#fff;border-radius:100px;padding:8px 16px;cursor:pointer;color:#475549}
.filters button[aria-pressed="true"]{background:#17211c;border-color:#17211c;color:#fff}
.index-cards{padding-bottom:100px}
.foot{border-top:1px solid var(--line);padding:30px 0 40px;font-size:13px;color:#7b877d}
.foot .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.foot a{text-decoration:none}.foot a:hover{color:var(--green)}
@media(max-width:980px){.post-grid{grid-template-columns:1fr;gap:0}.toc{display:none}.cards{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.wrap{width:calc(100% - 36px)}.top nav{display:none}.top .cta{margin-left:auto}.top .logo img{width:140px}.prose{font-size:16.5px}.prose .lead{font-size:18px}.cards{grid-template-columns:1fr}.post-cover{margin-bottom:36px;border-radius:16px}.post-cta{padding:26px 22px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}