/* ============================================================
   Altavelife.com — Australian climate-intelligent gardening guide
   Botanical field-guide × nature editorial magazine
   Headings: Playfair Display · Body: Inter
   Signatures: climate-band motif · zone selector · plant quiz
   ============================================================ */
:root{
  --ivory:#FAF8F3; --paper:#fffefb; --surface:#ffffff; --surface-2:#f4f0e7;
  --green:#2F5D50; --green-deep:#244a40; --green-dark:#1c3a32; --green-soft:#e4ede8; --green-tint:#eef3f0;
  --beige:#E7DDCF; --beige-2:#f1ebe0;
  --ochre:#D8A35F; --ochre-deep:#b07c34; --ochre-soft:#f6ead6;
  --ink:#1E1E1E; --ink-soft:#3f3f3a; --muted:#6e6a60; --faint:#9c968a;
  --line:#e6dfd1; --line-2:#efe9dd; --line-dark:rgba(255,255,255,.13);
  --bg:var(--ivory); --text:var(--ink); --head:var(--ink); --card:var(--surface);
  --serif:"Playfair Display",Georgia,serif; --sans:"Inter",system-ui,-apple-system,sans-serif;
  --maxw:1240px; --gut:clamp(1.15rem,4vw,2.4rem); --r:16px; --r-lg:26px; --r-sm:10px;
  --sh-sm:0 2px 10px -4px rgba(31,58,50,.15);
  --sh:0 20px 44px -28px rgba(31,58,50,.38);
  --sh-lg:0 40px 80px -44px rgba(31,58,50,.5);
  --ease:cubic-bezier(.4,.05,.2,1);
}
[data-theme="dark"]{
  --ivory:#15201c; --paper:#17231f; --surface:#1d2a25; --surface-2:#22322c;
  --green:#6fae9c; --green-deep:#5b9a88; --green-soft:#23332d; --green-tint:#1f2e29;
  --beige:#2a3a33; --beige-2:#243530;
  --ochre:#e2b377; --ochre-deep:#e2b377; --ochre-soft:#2c3a32;
  --ink:#e9e6dd; --ink-soft:#cfccc2; --muted:#9fa39a; --faint:#7d8178;
  --line:#2c3c35; --line-2:#263530; --line-dark:rgba(255,255,255,.1);
  --bg:var(--ivory); --text:var(--ink); --head:#f3f1ea; --card:var(--surface);
  --sh-sm:0 2px 10px -4px rgba(0,0,0,.5); --sh:0 20px 44px -28px rgba(0,0,0,.6); --sh-lg:0 40px 80px -44px rgba(0,0,0,.7);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.62;font-size:17px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;transition:background .4s,color .4s}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.12;letter-spacing:-.01em;color:var(--head)}
strong{font-weight:600;color:var(--head)}
::selection{background:var(--ochre);color:#fff}
:focus-visible{outline:2.5px solid var(--ochre-deep);outline-offset:3px;border-radius:3px}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut);width:100%}
.wrap-mid{max-width:1000px;margin-inline:auto;padding-inline:var(--gut)}
.wrap-narrow{max-width:820px;margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(3.4rem,7vw,6rem)}
.section.pt0{padding-top:0}
.bg-green{background:var(--green-dark);color:#e7efe9}
.bg-beige{background:var(--beige-2)}
.bg-surface2{background:var(--surface-2)}
.bg-green h1,.bg-green h2,.bg-green h3{color:#fff}

/* labels (Inter small-caps, leaf tick) */
.kicker{display:inline-flex;align-items:center;gap:.55rem;font-size:.74rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ochre-deep)}
.kicker::before{content:"";width:18px;height:14px;flex:none;background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 14'%3E%3Cpath d='M2 12C2 5 8 2 16 2c0 7-5 11-11 11' fill='none' stroke='%23b07c34' stroke-width='1.3'/%3E%3Cpath d='M2 12C4 9 7 6 12 4' fill='none' stroke='%23b07c34' stroke-width='1.3'/%3E%3C/svg%3E")}
.kicker.on-green{color:var(--ochre)}
.kicker.on-green::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 14'%3E%3Cpath d='M2 12C2 5 8 2 16 2c0 7-5 11-11 11' fill='none' stroke='%23D8A35F' stroke-width='1.3'/%3E%3Cpath d='M2 12C4 9 7 6 12 4' fill='none' stroke='%23D8A35F' stroke-width='1.3'/%3E%3C/svg%3E")}
.kicker.plain::before{display:none}

.display{font-size:clamp(2.7rem,6vw,4.8rem);line-height:1.01;letter-spacing:-.02em;font-weight:600}
.h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
.h3{font-size:clamp(1.3rem,2vw,1.6rem)}
.lede{font-size:clamp(1.1rem,1.5vw,1.28rem);line-height:1.6;color:var(--ink-soft);font-weight:400}
.measure{max-width:64ch}
.serif-it{font-family:var(--serif);font-style:italic}
em.ochre{font-style:italic;color:var(--ochre-deep)}
.bg-green .lede{color:#bcd0c8}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.82rem 1.4rem;border-radius:100px;font-weight:600;
  font-size:.95rem;transition:transform .2s var(--ease),background .2s,box-shadow .2s,color .2s,border-color .2s;
  border:1.5px solid transparent;white-space:nowrap}
.btn svg{width:1.05em;height:1.05em;flex:none;transition:transform .2s var(--ease)}
.btn-green{background:var(--green);color:#fff;box-shadow:0 12px 26px -14px rgba(47,93,80,.8)}
.btn-green:hover{background:var(--green-deep);transform:translateY(-2px)}
.btn-green:hover svg{transform:translateX(3px)}
.btn-ochre{background:var(--ochre);color:#3a2710}.btn-ochre:hover{background:#e3b274;transform:translateY(-2px)}
.btn-line{border-color:var(--line);color:var(--text);background:var(--card)}
.btn-line:hover{border-color:var(--green);transform:translateY(-2px)}
.btn-line.on-green{background:transparent;border-color:var(--line-dark);color:#fff}
.btn-line.on-green:hover{background:rgba(255,255,255,.08)}
.btn-text{padding:.4rem 0;color:var(--ochre-deep);font-weight:600}
.btn-text svg{width:1.05em;height:1.05em;vertical-align:-.18em;margin-left:.2rem;transition:transform .2s}
.btn-text:hover svg{transform:translateX(4px)}
.btn-lg{padding:.98rem 1.7rem;font-size:1rem}

/* progress + nav */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:1002;
  background:linear-gradient(90deg,var(--green),var(--ochre));transition:width .1s linear}
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.nav-row{display:flex;align-items:center;gap:1.4rem;height:72px}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(160%) blur(14px);
  border-bottom-color:var(--line);box-shadow:0 4px 20px -16px rgba(31,58,50,.5)}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--serif);font-weight:700;font-size:1.28rem;letter-spacing:-.01em}
.brand .mk{width:34px;height:34px;flex:none}
.nav-links{display:flex;align-items:center;gap:.1rem;margin-left:auto;flex-wrap:wrap}
.nav-links a{padding:.5rem .68rem;border-radius:9px;font-weight:500;font-size:.9rem;color:var(--ink-soft);transition:.2s}
.nav-links a:hover{color:var(--green);background:var(--green-soft)}
.nav-links a.active{color:var(--green);font-weight:600}
.nav-tools{display:flex;align-items:center;gap:.4rem;margin-left:.6rem}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--card);
  display:grid;place-items:center;color:var(--text);transition:.2s}
.icon-btn:hover{border-color:var(--green);color:var(--green)}
.icon-btn svg{width:19px;height:19px}
.theme-toggle .moon{display:none}.theme-toggle .sun{display:block}
[data-theme="dark"] .theme-toggle .moon{display:block}[data-theme="dark"] .theme-toggle .sun{display:none}
.nav-burger{display:none}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.3s var(--ease);transform:translate(-50%,-50%)}
.nav-burger span::before{top:-6px}.nav-burger span::after{top:6px}
.nav-burger[aria-expanded="true"] span{background:transparent}
.nav-burger[aria-expanded="true"] span::before{top:0;transform:translate(-50%,-50%) rotate(45deg)}
.nav-burger[aria-expanded="true"] span::after{top:0;transform:translate(-50%,-50%) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;z-index:999;background:var(--bg);transform:translateY(-100%);
  transition:transform .4s var(--ease);display:flex;flex-direction:column;padding:88px var(--gut) 2rem;overflow-y:auto;visibility:hidden}
.mobile-menu.open{transform:none;visibility:visible}
.mobile-menu .mm-group{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:1.3rem 0 .3rem;font-weight:600}
.mobile-menu a{font-family:var(--serif);font-size:1.4rem;font-weight:500;padding:.5rem 0;border-bottom:1px solid var(--line-2);display:block}
.mobile-menu a:hover{color:var(--green)}

/* search overlay */
.search-overlay{position:fixed;inset:0;z-index:1001;background:color-mix(in srgb,var(--bg) 80%,transparent);
  backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:.25s;padding-top:14vh}
.search-overlay.open{opacity:1;visibility:visible}
.search-box{max-width:640px;margin-inline:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh-lg);overflow:hidden}
.search-box input{width:100%;font:inherit;font-size:1.15rem;padding:1.2rem 1.4rem;border:none;background:transparent;color:var(--text)}
.search-box input:focus{outline:none}
.search-results{max-height:54vh;overflow-y:auto;border-top:1px solid var(--line-2)}
.search-results a{display:block;padding:.9rem 1.4rem;border-bottom:1px solid var(--line-2)}
.search-results a:hover,.search-results a.sel{background:var(--green-soft)}
.search-results .sr-t{font-weight:600;color:var(--head)}
.search-results .sr-d{font-size:.85rem;color:var(--muted)}
.search-empty{padding:1.4rem;color:var(--muted);text-align:center}

/* breadcrumb */
.crumb{display:flex;gap:.5rem;align-items:center;font-size:.82rem;color:var(--muted);flex-wrap:wrap;padding-top:1rem}
.crumb a:hover{color:var(--green)}
.crumb .sep{color:var(--faint)}
.crumb .cur{color:var(--ink-soft);font-weight:500}

/* hero */
.hero{padding-top:104px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(1.6rem,4vw,3.6rem);align-items:center;min-height:min(74vh,680px)}
.hero h1{margin:1.1rem 0 1.3rem}
.hero .lede{max-width:48ch;margin-bottom:1.8rem}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap}
.hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);aspect-ratio:1/1.08;
  background:linear-gradient(170deg,#dfeae3,#eaddc8 55%,#e7ddcf)}
[data-theme="dark"] .hero-figure{background:linear-gradient(170deg,#22332c,#283129 55%,#2a3a33)}
.hero-figure svg{position:absolute;inset:0;width:100%;height:100%}
.hero-figure .specimen-label{position:absolute;left:18px;bottom:16px;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--green-deep);background:color-mix(in srgb,var(--ivory) 80%,transparent);padding:.4rem .7rem;border-radius:8px;font-weight:600}
[data-theme="dark"] .hero-figure .specimen-label{color:#cfe0d8}
.climate-band{display:flex;height:8px;border-radius:6px;overflow:hidden;margin-top:2rem;max-width:430px}
.climate-band i{flex:1}
.cb-trop{background:#3f8f6e}.cb-arid{background:#d8a35f}.cb-temp{background:#6fae9c}.cb-med{background:#c98a4e}.cb-alp{background:#9fb6c4}
.hero-meta{display:flex;gap:2rem;margin-top:1rem;flex-wrap:wrap}
.hero-meta .hm .n{font-family:var(--serif);font-size:1.6rem;font-weight:600;color:var(--green)}
.hero-meta .hm .l{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* section head */
.shead{display:flex;justify-content:space-between;align-items:flex-end;gap:1.4rem;margin-bottom:2.4rem;flex-wrap:wrap}
.shead .st{max-width:660px}
.shead h2{margin:.7rem 0 .5rem}
.shead p{color:var(--muted)}

/* specimen cards (plants) */
.specimens{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.specimen{border:1px solid var(--line);border-radius:var(--r);background:var(--card);overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s}
.specimen:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.specimen-vis{height:150px;background:var(--green-tint);display:grid;place-items:center;color:var(--green);border-bottom:1px solid var(--line-2)}
.specimen-vis svg{width:78px;height:78px}
.specimen-body{padding:1.1rem 1.2rem 1.3rem}
.specimen-body .latin{font-style:italic;font-family:var(--serif);font-size:.84rem;color:var(--ochre-deep)}
.specimen-body h3{font-size:1.18rem;margin:.1rem 0 .5rem}
.specimen-body p{font-size:.88rem;color:var(--muted);margin-bottom:.8rem}
.traits{display:flex;flex-wrap:wrap;gap:.35rem}
.trait{font-size:.68rem;letter-spacing:.04em;text-transform:uppercase;font-weight:600;color:var(--green-deep);
  background:var(--green-soft);padding:.26rem .55rem;border-radius:6px}

/* principles grid */
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.principle{background:var(--card);padding:1.7rem 1.6rem;transition:background .25s}
.principle:hover{background:var(--green-soft)}
.principle .pic{width:46px;height:46px;color:var(--green);margin-bottom:1rem}
.principle .pic svg{width:46px;height:46px}
.principle h3{font-size:1.2rem;margin-bottom:.5rem}
.principle p{font-size:.92rem;color:var(--muted)}

/* climate zone selector (signature) */
.zones{display:grid;grid-template-columns:340px 1fr;gap:2.2rem;align-items:start}
.zone-list{display:flex;flex-direction:column;gap:.5rem}
.zone-btn{text-align:left;padding:1rem 1.2rem;border-radius:var(--r);border:1.5px solid var(--line-dark);
  background:rgba(255,255,255,.05);color:#dfeae3;transition:.2s;display:flex;align-items:center;gap:.9rem}
.zone-btn:hover{background:rgba(255,255,255,.1)}
.zone-btn.active{background:var(--ochre);color:#3a2710;border-color:var(--ochre)}
.zone-btn .swatch{width:16px;height:16px;border-radius:5px;flex:none}
.zone-btn .zn{font-weight:600;font-family:var(--serif);font-size:1.05rem}
.zone-detail{border:1px solid var(--line-dark);border-radius:var(--r-lg);background:rgba(255,255,255,.05);padding:2rem;min-height:340px}
.zone-detail h3{color:#fff;font-size:1.8rem;margin-bottom:.3rem}
.zone-detail .zsub{color:var(--ochre);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;margin-bottom:1.1rem}
.zone-detail p{color:#bcd0c8;margin-bottom:1.4rem;max-width:56ch}
.zone-metrics{display:grid;gap:1rem;margin-bottom:1.4rem}
.zmetric .zm-top{display:flex;justify-content:space-between;font-size:.82rem;color:#dfeae3;margin-bottom:.35rem}
.zmetric .zm-top b{color:#fff;font-weight:600}
.zm-bar{height:9px;border-radius:5px;background:rgba(255,255,255,.12);overflow:hidden}
.zm-bar i{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,var(--ochre),#e9c08a)}
.zone-plants{border-top:1px solid var(--line-dark);padding-top:1.1rem}
.zone-plants .zp-l{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ochre);font-weight:600;margin-bottom:.6rem}
.zone-plants .zp-list{display:flex;flex-wrap:wrap;gap:.4rem}
.zone-plants .zp-list span{font-size:.82rem;background:rgba(255,255,255,.08);color:#e7efe9;padding:.3rem .7rem;border-radius:7px}

/* plant quiz (signature) */
.quiz{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--card);box-shadow:var(--sh-sm);overflow:hidden;max-width:760px;margin-inline:auto}
.quiz-head{padding:1.5rem 1.8rem 0}
.quiz-progress{display:flex;gap:.4rem;margin-top:1rem}
.quiz-progress i{height:5px;flex:1;border-radius:3px;background:var(--line-2);transition:background .3s}
.quiz-progress i.done{background:var(--ochre)}
.quiz-body{padding:1.6rem 1.8rem 1.9rem}
.quiz-q{font-family:var(--serif);font-size:1.5rem;margin-bottom:.3rem}
.quiz-hint{font-size:.9rem;color:var(--muted);margin-bottom:1.4rem}
.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.quiz-opt{text-align:left;padding:1rem 1.2rem;border:1.5px solid var(--line);border-radius:var(--r);background:var(--bg);
  transition:.2s;display:flex;gap:.8rem;align-items:center}
.quiz-opt:hover{border-color:var(--ochre);transform:translateY(-2px)}
.quiz-opt .qo-ic{width:34px;height:34px;border-radius:9px;background:var(--green-soft);color:var(--green);display:grid;place-items:center;flex:none}
.quiz-opt .qo-ic svg{width:19px;height:19px}
.quiz-opt .qo-t{font-weight:600}.quiz-opt .qo-d{font-size:.8rem;color:var(--muted)}
.quiz-foot{display:flex;justify-content:space-between;align-items:center;margin-top:1.4rem}
.quiz-step-label{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);font-weight:600}
.quiz-result{text-align:center;padding:.5rem 0}
.quiz-result .qr-ic{width:64px;height:64px;border-radius:50%;background:var(--green-soft);color:var(--green);display:grid;place-items:center;margin:0 auto 1.1rem}
.quiz-result .qr-ic svg{width:32px;height:32px}
.quiz-result h3{font-size:1.7rem;margin-bottom:.5rem}
.quiz-result p{color:var(--muted);max-width:52ch;margin:0 auto 1.3rem}
.qr-tags{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:1.5rem}
.qr-tags span{background:var(--ochre-soft);color:var(--ochre-deep);font-weight:600;font-size:.86rem;padding:.4rem .9rem;border-radius:100px}

/* lawn region switcher */
.region-switch{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:2rem}
.region-switch a{padding:.6rem 1.2rem;border-radius:100px;border:1.5px solid var(--line);font-weight:600;font-size:.9rem;color:var(--ink-soft);transition:.2s}
.region-switch a:hover{border-color:var(--green)}
.region-switch a.active{background:var(--green);color:#fff;border-color:var(--green)}

/* seasonal cycle */
.seasons{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.season{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:1.5rem 1.5rem 1.6rem;border-top:4px solid var(--ochre)}
.season.s-sum{border-top-color:#d8a35f}.season.s-aut{border-top-color:#b07c34}.season.s-win{border-top-color:#6fae9c}.season.s-spr{border-top-color:#3f8f6e}
.season .smonths{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);font-weight:600}
.season h3{font-size:1.3rem;margin:.2rem 0 .8rem}
.season ul{display:grid;gap:.5rem}
.season li{font-size:.9rem;color:var(--ink-soft);padding-left:1.1rem;position:relative}
.season li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;border-radius:50%;background:var(--green)}

/* nav hub cards */
.hub{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.hub-card{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:1.5rem 1.6rem;display:flex;
  flex-direction:column;gap:.5rem;transition:transform .25s var(--ease),box-shadow .25s,border-color .2s}
.hub-card:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:var(--green)}
.hub-card .hic{width:40px;height:40px;color:var(--green)}.hub-card .hic svg{width:40px;height:40px}
.hub-card h3{font-size:1.22rem}.hub-card p{font-size:.9rem;color:var(--muted);flex:1}
.hub-card .go{font-weight:600;color:var(--ochre-deep);font-size:.88rem;display:inline-flex;align-items:center;gap:.4rem}
.hub-card .go svg{width:1.05em;height:1.05em;transition:transform .2s}.hub-card:hover .go svg{transform:translateX(4px)}
.bg-green .hub-card h3{color:var(--head)}
.bg-green .hub-card p{color:var(--muted)}

/* editorial article layout */
.article{display:grid;grid-template-columns:1fr 280px;gap:clamp(1.8rem,4vw,3.4rem);align-items:start}
.toc{position:sticky;top:90px;border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:1.3rem 1.4rem}
.toc .tl{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.8rem;font-weight:600}
.toc a{display:block;padding:.4rem 0;font-size:.9rem;color:var(--ink-soft);border-bottom:1px solid var(--line-2)}
.toc a:last-child{border-bottom:none}.toc a:hover{color:var(--green)}
.prose{max-width:70ch}
.prose>section{margin-bottom:2.4rem}
.prose>section>*+*{margin-top:1.05rem}
.prose h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:.3rem}
.prose h3{font-size:1.2rem;margin-top:1.6rem}
.prose p{color:var(--ink-soft)}
.prose ul.bullets{display:grid;gap:.55rem;margin-top:.5rem}
.prose ul.bullets li{position:relative;padding-left:1.5rem;color:var(--ink-soft)}
.prose ul.bullets li::before{content:"";position:absolute;left:0;top:.6em;width:9px;height:9px;border-radius:50% 50% 50% 0;background:var(--green);transform:rotate(45deg)}
.prose a.inline{color:var(--ochre-deep);font-weight:600;border-bottom:1.5px solid var(--ochre-soft)}
.prose a.inline:hover{border-color:var(--ochre)}
.figure{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--green-tint);margin:1.4rem 0}
.figure .fig-vis{height:200px;display:grid;place-items:center;color:var(--green)}
.figure .fig-vis svg{width:120px;height:120px}
.figure figcaption{padding:.8rem 1.1rem;font-size:.84rem;color:var(--muted);background:var(--card);border-top:1px solid var(--line-2)}
.callout{border-left:3px solid var(--ochre);background:var(--ochre-soft);border-radius:0 var(--r) var(--r) 0;padding:1.2rem 1.4rem}
.callout.green{border-color:var(--green);background:var(--green-soft)}
.callout p{margin:0;color:var(--ink-soft)}.callout strong{color:var(--head)}
.factstrip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:1.4rem 0}
.factstrip .f{background:var(--card);padding:1.2rem 1.3rem}
.factstrip .f .n{font-family:var(--serif);font-size:1.5rem;color:var(--green);font-weight:600}
.factstrip .f .l{font-size:.82rem;color:var(--muted)}

/* faq */
.faq-groups{display:grid;gap:2.2rem}
.faq-group h2{font-size:1.4rem;margin-bottom:1rem}
.faq-list{display:grid;gap:.6rem;max-width:860px}
.faq{border:1px solid var(--line);border-radius:var(--r);background:var(--card);overflow:hidden;transition:border-color .2s}
.faq.open{border-color:var(--green)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 1.3rem;text-align:left}
.faq-q span{font-family:var(--serif);font-size:1.08rem;font-weight:600;color:var(--head)}
.faq-icon{width:24px;height:24px;flex:none;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--ochre-deep);border-radius:2px;transition:.3s var(--ease)}
.faq-icon::before{width:13px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:13px;transform:translate(-50%,-50%)}
.faq.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a-in{padding:0 1.3rem 1.2rem;color:var(--ink-soft);max-width:72ch}
.faq-filter{margin-bottom:1.8rem;max-width:440px;position:relative}
.faq-filter input{width:100%;font:inherit;padding:.8rem 1rem .8rem 2.6rem;border:1.5px solid var(--line);border-radius:100px;background:var(--card);color:var(--text)}
.faq-filter input:focus{outline:none;border-color:var(--green)}
.faq-filter svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}

/* forms */
.form-card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--card);padding:clamp(1.6rem,3vw,2.4rem);box-shadow:var(--sh-sm)}
.fg{margin-bottom:1.15rem;display:flex;flex-direction:column}
.fg label{font-weight:600;font-size:.9rem;margin-bottom:.45rem}
.fg label .rq{color:var(--ochre-deep)}
.fg input,.fg select,.fg textarea{font:inherit;font-size:1rem;padding:.78rem .95rem;border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--bg);color:var(--text);transition:.2s}
.fg textarea{min-height:150px;resize:vertical}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-soft)}
.fg .err{display:none;color:#c0392b;font-size:.82rem;margin-top:.35rem;font-weight:500}
.fg.invalid input,.fg.invalid select,.fg.invalid textarea{border-color:#c0392b}
.fg.invalid .err{display:block}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-ok{display:none;align-items:center;gap:.9rem;padding:1.1rem 1.3rem;border-radius:var(--r);background:var(--green-soft);border:1px solid var(--green);margin-bottom:1.4rem}
.form-ok.show{display:flex}
.form-ok .ic{width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;flex:none}
.form-ok strong{display:block;color:var(--head)}.form-ok span{font-size:.88rem;color:var(--ink-soft)}
.contact-layout{display:grid;grid-template-columns:1fr 350px;gap:2.4rem;align-items:start}
.cside-card{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:1.4rem 1.5rem;margin-bottom:1rem}
.cside-card h3{font-size:1.08rem;margin-bottom:.5rem}.cside-card p{font-size:.9rem;color:var(--muted)}
.cside-card a{color:var(--ochre-deep);font-weight:600}

/* page header */
.phead{padding-top:108px;padding-bottom:clamp(1.5rem,3vw,2.4rem)}
.phead .kicker{margin-bottom:1rem}
.phead h1{font-size:clamp(2.3rem,5vw,3.6rem);max-width:20ch}
.phead .lede{margin-top:1rem;max-width:62ch}

/* footer */
.footer{background:var(--green-dark);color:#aebfb8;padding-top:clamp(3rem,6vw,4.5rem)}
.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:2.2rem;padding-bottom:2.8rem;border-bottom:1px solid var(--line-dark)}
.footer-brand .brand{color:#fff;margin-bottom:1rem}
.footer-brand p{font-size:.9rem;color:#8ba197;max-width:34ch;margin-bottom:1.1rem}
.footer-disc{font-size:.77rem;color:#7c9389;line-height:1.55;max-width:42ch}
.footer-col h4{color:#fff;font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:.9rem;font-weight:600;font-family:var(--sans)}
.footer-col a{display:block;padding:.3rem 0;font-size:.9rem;color:#aebfb8;transition:.2s}
.footer-col a:hover{color:var(--ochre)}
.footer-bot{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-block:1.5rem;flex-wrap:wrap}
.footer-bot p{font-size:.83rem;color:#7c9389}
.footer-bot nav{display:flex;gap:1.2rem;flex-wrap:wrap}
.footer-bot nav a{font-size:.83rem;color:#8ba197}.footer-bot nav a:hover{color:var(--ochre)}

/* reveal + to-top */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}}
.to-top{position:fixed;right:1.3rem;bottom:1.3rem;z-index:900;width:46px;height:46px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s var(--ease);box-shadow:var(--sh)}
.to-top.show{opacity:1;visibility:visible;transform:none}.to-top:hover{background:var(--ochre);color:#3a2710}
.to-top svg{width:20px;height:20px}

@media (max-width:1080px){
  .specimens{grid-template-columns:repeat(2,1fr)}
  .zones{grid-template-columns:1fr}
  .article{grid-template-columns:1fr}.toc{position:static;margin-bottom:1.5rem}
  .contact-layout{grid-template-columns:1fr}
  .nav-links{display:none}.nav-burger{display:block;position:relative;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:var(--card)}
}
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:2rem}.hero-figure{max-width:430px;margin-inline:auto}
  .principles,.hub{grid-template-columns:1fr}
  .seasons{grid-template-columns:1fr 1fr}
  .quiz-options{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
  .factstrip{grid-template-columns:1fr}
}
@media (max-width:520px){
  body{font-size:16px}
  .specimens,.seasons{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .footer-top,.footer-bot{grid-template-columns:1fr}.footer-bot{flex-direction:column;align-items:flex-start}
}