:root{--ink:#1d2a20;--muted:#5b6b5a;--bg:#fbf8f1;--card:#fff;--line:#e6dfcf;--green:#2f6a45;--green-d:#1b3a28;--leaf:#5aa33b;--leaf-l:#e6f2dc;--mulch:#8a5228;--amber:#e3a33a;--r:14px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.7 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--green);text-underline-offset:3px}a:hover{color:var(--green-d)}
img,svg{max-width:100%}
.wrap{max-width:880px;margin:0 auto;padding:0 16px}
/* header */
header{position:sticky;top:0;z-index:20;background:rgba(251,248,241,.92);backdrop-filter:saturate(1.4) blur(8px);-webkit-backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
header .wrap{max-width:1080px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px 16px;padding:10px 16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.01em;color:var(--green-d);text-decoration:none}.logo span{color:var(--leaf)}
.logo img{border-radius:10px;display:block}
header nav{display:flex;flex-wrap:wrap;gap:4px}
header nav a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:600;padding:7px 12px;border-radius:999px;white-space:nowrap}
header nav a:hover{background:var(--leaf-l);color:var(--green-d)}
header nav a:first-child{background:var(--green);color:#fff}header nav a:first-child:hover{background:var(--green-d)}
/* type */
main{padding:28px 0 56px}
h1{font-size:clamp(30px,5vw,42px);line-height:1.15;letter-spacing:-.02em;margin:8px 0 14px;color:var(--green-d)}
h2{font-size:clamp(22px,3.2vw,27px);line-height:1.25;letter-spacing:-.01em;margin:44px 0 12px;color:var(--green-d);padding-top:18px;border-top:1px solid var(--line)}
h3{font-size:19px;line-height:1.35;margin:26px 0 6px}
p,li{max-width:72ch}ul,ol{padding-left:22px}li{margin:4px 0}
code{background:#f1ece0;padding:1px 6px;border-radius:6px;font-size:.92em}
/* hero */
.hero{background:linear-gradient(180deg,#eef6e7 0%,var(--bg) 100%);border-bottom:1px solid var(--line);margin:-28px 0 0;padding:34px 0 26px}
.hero .wrap{max-width:1080px;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}
.hero h1{margin-top:0}.hero p{font-size:19px;color:#34433a}
.hero .kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--green);background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 12px;margin-bottom:12px}
.hero ul.checks{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:15px;font-weight:600;color:var(--green-d)}
.hero ul.checks li:before{content:"✓ ";color:var(--leaf)}
.hero figure{margin:0}.hero img{width:100%;height:auto;display:block;border-radius:22px;box-shadow:0 18px 40px -22px rgba(27,58,40,.45)}
@media (max-width:760px){.hero .wrap{grid-template-columns:1fr}.hero{padding-top:22px}}
@media (max-width:640px){header{position:static}header nav{flex-wrap:nowrap;overflow-x:auto;width:100%;-webkit-overflow-scrolling:touch;scrollbar-width:none}header nav a{padding:6px 10px}}
/* calculator */
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;margin:24px 0;box-shadow:0 10px 30px -18px rgba(27,58,40,.35)}
.card:before{content:"";display:block;height:4px;margin:-22px -22px 18px;border-radius:18px 18px 0 0;background:linear-gradient(90deg,var(--leaf),var(--green),var(--mulch))}
label{display:block;font-weight:700;font-size:14px;margin:12px 0 5px;color:#34433a}
input,select{width:100%;padding:11px 12px;border:1.5px solid #d7cfbc;border-radius:10px;font-size:16px;background:#fff;color:var(--ink);font-family:inherit}
input:focus,select:focus{outline:none;border-color:var(--leaf);box-shadow:0 0 0 3px rgba(90,163,59,.2)}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
button{background:var(--green);color:#fff;border:0;border-radius:10px;padding:13px 22px;font-size:16px;font-weight:700;cursor:pointer;margin-top:16px;font-family:inherit}
button:hover{background:var(--green-d)}
.result{background:linear-gradient(135deg,#eef6e7,#f7f1e3);border:1px solid #d9e8cc;border-radius:14px;padding:16px 18px;margin-top:18px}
.result strong{font-size:28px;color:var(--green-d);letter-spacing:-.01em}
/* content blocks */
.tldr{background:#fff;border:1px solid var(--line);border-left:5px solid var(--leaf);border-radius:14px;padding:14px 20px 10px;margin:22px 0}
.tldr-h{margin:0 0 4px;font-weight:800;font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--green)}
.tldr ul{margin:6px 0}
.faq{background:#fff;border:1px solid var(--line);border-radius:18px;padding:4px 22px 14px;margin:40px 0}
.faq h2{border-top:0;padding-top:12px;margin-top:12px}
.faq h3{font-size:18px;margin:20px 0 4px;padding-left:28px;position:relative}
.faq h3:before{content:"Q";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:6px;background:var(--leaf-l);color:var(--green);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.faq p{margin:0 0 8px;padding-left:28px;color:#34433a}
table{border-collapse:collapse;width:100%;margin:14px 0;font-size:15px;background:#fff;border-radius:12px;overflow:hidden;max-width:100%}
th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--green-d);color:#fff;font-weight:700}
tr:nth-child(even) td{background:#faf7ef}
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:12px;margin:14px 0}.tw table{min-width:520px;margin:0;border-radius:0}
.muted{color:var(--muted);font-size:14px}.hidden{display:none}
.crumbs{font-size:14px;color:var(--muted);margin:0 0 10px}.crumbs a{color:var(--green);text-decoration:none}
.byline{font-size:14px;color:var(--muted);margin:0 0 18px}
figure{margin:24px 0}figure svg,figure img{width:100%;height:auto;display:block;border-radius:16px}
figcaption{font-size:13px;color:var(--muted);margin-top:8px}
/* lists of guides */
.posts{list-style:none;padding:0;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.post{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;transition:transform .15s,box-shadow .15s;position:relative;max-width:none}
.post:before{content:"";display:block;width:36px;height:4px;border-radius:4px;background:var(--leaf);margin-bottom:12px}
.post:hover{transform:translateY(-2px);box-shadow:0 12px 26px -18px rgba(27,58,40,.5)}
.post a{text-decoration:none;color:var(--green-d)}.post a:after{content:"";position:absolute;inset:0}
.post p{margin:6px 0 0;font-size:15px;color:#34433a}.post .muted{display:block;font-size:13px;font-weight:600;color:var(--mulch);margin-top:4px}
.related{margin-top:36px}
.cats a{display:inline-block;margin:0 8px 8px 0;padding:7px 14px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:15px;font-weight:600;background:#fff}
.cats a:hover{background:var(--leaf-l)}
.ad-slot{min-height:250px;margin:24px 0}.ad-slot[hidden]{display:none}
/* footer */
footer{background:var(--green-d);color:#dfe9d8;margin-top:24px}
footer a{color:#dfe9d8;text-decoration:none}footer a:hover{color:#fff;text-decoration:underline}
footer .wrap{max-width:1080px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;padding:36px 16px 18px}
.foot-grid .logo{color:#fff}.foot-grid .logo span{color:#a9dc7f}.foot-grid p{font-size:15px;color:#c3d3bb;max-width:36ch}
footer nav{display:flex;flex-direction:column;gap:6px;font-size:15px}footer nav b{color:#fff;font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.foot-note{border-top:1px solid rgba(255,255,255,.12);padding:14px 16px 22px;font-size:13px;color:#b5c7ad}.foot-note p{margin:0}
@media (max-width:700px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}
/* cookie consent */
#cookie{position:fixed;left:12px;right:12px;bottom:12px;background:#fff;color:var(--ink);border:1px solid var(--line);padding:16px 18px;border-radius:16px;font-size:14px;line-height:1.5;display:none;z-index:50;max-width:620px;margin:0 auto;box-shadow:0 18px 40px -16px rgba(0,0,0,.35)}
#cookie p{margin:0 0 10px;max-width:none}
#cookie .ck-btns{display:flex;gap:10px;flex-wrap:wrap}
#cookie button{margin:0;padding:10px 18px;font-size:15px;flex:1 1 140px}
#cookie #ck-no{background:#fff;color:var(--green-d);border:1.5px solid var(--green)}
#cookie #ck-no:hover{background:var(--leaf-l)}