:root{
  /* duotone-brand: deux co-dominantes vegetal/encre + neutres tintes cool */
  --ink:#1c2b26;            /* encre */
  --leaf:#2f5d4a;           /* vert vegetal co-dominant */
  --leaf-2:#3d7a60;
  --paper:#f5f1e8;          /* fond papier-grain */
  --paper-2:#efe9db;        /* bande alternee */
  --card:#fbf9f3;
  --line:#d8cfbb;           /* filet d'herbier */
  --line-soft:#e4dcca;
  --muted:#6d756d;
  --gold:#a9742a;           /* prix/badge, chaud discret */
  --red:#9e3b2c;
  --radius:13px;
  --radius-sm:9px;
  --mw:1120px;
  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --sans:"Instrument Sans",-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --shadow:0 10px 30px -16px rgba(28,43,38,.30);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.6;color:var(--ink);
  background-color:var(--paper);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--leaf);text-decoration:none}
.wrap{max-width:var(--mw);margin:0 auto;padding:0 22px;width:100%}
.wrap.narrow{max-width:760px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.08;letter-spacing:.1px;margin:0}
h1{font-size:clamp(2.3rem,6vw,3.7rem)}
h2{font-size:clamp(1.8rem,4vw,2.6rem)}
h3{font-size:1.35rem}
em{font-style:italic}
.kicker{font-family:var(--sans);text-transform:none;letter-spacing:.18em;font-size:.72rem;font-weight:600;color:var(--leaf);text-transform:uppercase;margin:0 0 .6rem}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:10px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:8px;z-index:99}

/* topbar + header */
.topbar{background:var(--ink);color:#e7e0cf;font-size:.78rem;letter-spacing:.02em}
.topbar .wrap{display:flex;gap:10px;justify-content:center;align-items:center;padding:7px 22px;flex-wrap:wrap}
.topbar .sep{opacity:.45}
.header{background:rgba(245,241,232,.92);backdrop-filter:saturate(1.1);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header .wrap{display:flex;align-items:center;gap:18px;padding:14px 22px}
.logo{display:flex;align-items:center;gap:11px;color:var(--ink)}
.logo .mark{font-size:26px;color:var(--leaf);line-height:1}
.logo .ltxt{display:flex;flex-direction:column;line-height:1.05}
.logo b{font-family:var(--serif);font-weight:400;font-size:23px}
.logo small{font-size:11px;color:var(--muted);letter-spacing:.04em}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{color:var(--ink);font-weight:500;font-size:.92rem;position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;height:1.5px;background:var(--leaf);transition:right .35s cubic-bezier(.16,1,.3,1)}
.nav a:hover::after,.nav a:focus-visible::after{right:0}
.cart-link{background:var(--leaf);color:#fff;padding:9px 15px;border-radius:var(--radius-sm);font-weight:600;font-size:.86rem;display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.cart-link:hover{background:var(--leaf-2)}
.cart-count{background:rgba(255,255,255,.22);border-radius:20px;padding:1px 8px;font-variant-numeric:tabular-nums}

/* bands (rythme alternating) */
.main{min-height:50vh}
.band{padding:62px 0}
.band:nth-of-type(even){background:var(--paper-2)}
.band.reassure{background:var(--ink);color:#e7e0cf;padding:34px 0}
.narrow-band{padding:54px 0}

/* hero poster-framed */
.hero{padding:60px 0 22px}
.hero-frame{position:relative;border:1.5px solid var(--ink);border-radius:var(--radius);padding:clamp(34px,6vw,68px) clamp(24px,5vw,60px);background:var(--card);box-shadow:var(--shadow)}
.hero-frame::before{content:"";position:absolute;inset:9px;border:1px solid var(--line);border-radius:8px;pointer-events:none}
.hero-frame h1{position:relative;margin:.2rem 0 1rem;max-width:14ch}
.hero-frame h1 em{color:var(--leaf)}
.lede{font-size:1.12rem;color:#41504a;max-width:56ch;margin:0 0 1.6rem}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--leaf);color:#fff;border:1.5px solid var(--leaf);padding:13px 22px;border-radius:var(--radius-sm);font-family:var(--sans);font-weight:600;font-size:.98rem;cursor:pointer;text-decoration:none;transition:transform .25s cubic-bezier(.16,1,.3,1),background .2s,box-shadow .25s}
.btn:hover{background:var(--leaf-2);border-color:var(--leaf-2);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;color:var(--leaf);border-color:var(--leaf)}
.btn.ghost:hover{background:var(--leaf);color:#fff}
.btn.wide{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--leaf);outline-offset:2px}

/* reassurance */
.reass{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.reass li{display:flex;gap:13px;align-items:flex-start}
.reass .r-no{font-family:var(--serif);font-size:1.5rem;color:#9bbcae;line-height:1}
.reass strong{display:block;font-size:.98rem;color:#fff}
.reass p{margin:.2rem 0 0;font-size:.84rem;color:#aebbb2}

/* catalogue */
.cat-block{margin-top:42px}
.cat-block:first-of-type{margin-top:30px}
.cat-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:24px}
.cat-title{font-size:1.55rem}
.cat-sub{color:var(--muted);font-size:.92rem;margin:0}
.cat-more{margin-left:auto;font-weight:600;font-size:.88rem}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid.wide{grid-template-columns:repeat(3,1fr)}

/* card = fiche d'herbier (signature) */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:inherit;display:flex;flex-direction:column;transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--leaf)}
.specimen{position:relative;margin:0;aspect-ratio:4/3;background:repeating-linear-gradient(180deg,#fbf9f3 0 23px,#f3eede 23px 24px);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.spec-frame{position:absolute;inset:12px;border:1px solid var(--line);border-radius:5px}
.spec-glyph{font-family:var(--serif);font-size:clamp(48px,9vw,84px);color:var(--leaf);opacity:.9;line-height:1}
.specimen[data-cat="circulation"] .spec-glyph{color:#7a4a6e}
.specimen[data-cat="articulations"] .spec-glyph{color:#9a6a2a}
.spec-tag{position:absolute;bottom:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:flex-end;font-size:.66rem;color:var(--muted);font-style:normal}
.spec-tag i{font-family:var(--serif);font-style:italic;font-size:.8rem;color:#4a564f}
.spec-ref{font-variant-numeric:tabular-nums;letter-spacing:.08em;font-weight:600;color:var(--ink)}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.card-body .cat{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--leaf);margin:0 0 4px}
.card-body h3{font-size:1.3rem;margin:0 0 6px}
.card-body .claim{color:#4a564f;font-size:.9rem;margin:0 0 14px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.price{margin:0;display:flex;align-items:baseline;gap:8px}
.price .old{color:#a59c86;text-decoration:line-through;font-size:.85rem}
.price strong{font-family:var(--serif);font-size:1.4rem;color:var(--ink)}
.badge{background:var(--gold);color:#fff;font-weight:600;font-size:.72rem;padding:3px 8px;border-radius:6px;letter-spacing:.02em}

/* crumb */
.crumb{font-size:.8rem;color:var(--muted);margin:0 0 16px}
.crumb a{color:var(--leaf)}.crumb span{margin:0 6px;color:var(--line)}

/* product */
.product{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.product-media .specimen{aspect-ratio:1/1;border:1.5px solid var(--ink);border-radius:var(--radius);box-shadow:var(--shadow)}
.product-media .spec-frame{inset:14px}
.plate-note{margin:12px 2px 0;font-size:.82rem;color:var(--muted)}
.plate-note i{font-family:var(--serif);color:#4a564f}
.buy .cat{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--leaf);margin:0 0 6px}
.buy h1{font-size:clamp(2rem,4.4vw,2.9rem);margin:0 0 10px}
.rating{display:flex;align-items:center;gap:8px;margin:0 0 14px;font-size:.9rem}
.rating .stars{color:var(--gold);letter-spacing:1px}
.rating .rnum{font-weight:600}.rating .rcount{color:var(--muted)}
.claim.lead{font-size:1.12rem;color:#3a463f;max-width:48ch}
.price-row{display:flex;align-items:baseline;gap:12px;margin:18px 0}
.price-row .old{color:#a59c86;text-decoration:line-through}
.price-row .now{font-family:var(--serif);font-size:2.2rem;color:var(--ink)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 4px}
.trust{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:9px}
.trust li{position:relative;padding-left:24px;color:#3a463f;font-size:.94rem}
.trust li::before{content:"✓";position:absolute;left:0;top:0;color:var(--leaf);font-weight:700}
details.info{margin-top:22px;border-top:1px solid var(--line);padding-top:16px}

/* faq */
.faq{display:flex;flex-direction:column;gap:0;margin-top:18px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;font-size:1.02rem;padding:16px 30px 16px 2px;list-style:none;position:relative;color:var(--ink)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:13px;font-size:1.4rem;color:var(--leaf);font-weight:400;transition:transform .25s}
details[open]>summary::after{transform:rotate(45deg)}
.faq details p,details.info p{margin:0 0 16px;color:#4a564f;max-width:68ch;font-size:.96rem}

/* cart + checkout */
.cart-list{margin:22px 0}
.cartrow{display:flex;justify-content:space-between;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:10px}
.cart-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.checkout-form fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:18px 0 16px;background:var(--card)}
.checkout-form legend{font-family:var(--serif);font-size:1.25rem;padding:0 8px;color:var(--ink)}
.field{margin:0 0 14px}
.field label{display:block;font-weight:600;font-size:.86rem;margin-bottom:5px;color:#3a463f}
.checkout-form input{display:block;width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;font-size:1rem;font-family:var(--sans);color:var(--ink)}
.checkout-form input:focus{border-color:var(--leaf)}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.row{display:grid;grid-template-columns:1fr 2fr;gap:14px}
.cart-summary{margin:6px 0 16px}
.note{color:var(--muted);font-size:.86rem}
.note code{background:var(--paper-2);padding:1px 6px;border-radius:4px;font-size:.85em}
.center-block{text-align:center}.center-block .lede{margin-left:auto;margin-right:auto}
.legal-doc p{color:#3a463f;max-width:70ch}

/* footer */
.footer{background:var(--ink);color:#c2ccc4;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:34px;padding:54px 22px 30px}
.footer .logo b{color:#fff}.footer .logo .mark{color:#9bbcae}.footer .logo small{color:#8c9890}
.foot-brand p{margin:14px 0 0;font-size:.9rem;color:#9aa69d;max-width:42ch}
.foot-col h4{font-family:var(--sans);font-weight:600;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#9bbcae;margin:0 0 14px}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.foot-col a{color:#c2ccc4;font-size:.9rem}.foot-col a:hover{color:#fff}
.foot-col li{font-size:.9rem;color:#9aa69d}
.foot-legal{border-top:1px solid #33433b;padding:20px 22px 34px}
.foot-legal p{margin:0;font-size:.78rem;color:#8c9890;max-width:90ch}
.foot-legal .copy{margin-top:10px}

/* responsive */
@media(max-width:900px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .grid,.grid.wide{grid-template-columns:repeat(2,1fr)}
  .product{grid-template-columns:1fr;gap:26px}
  .reass{grid-template-columns:repeat(2,1fr);gap:20px}
}
@media(max-width:640px){
  .band{padding:44px 0}
  .nav{display:none}
  .header .wrap{gap:12px}
  .grid,.grid.wide{grid-template-columns:1fr 1fr;gap:14px}
  .foot-grid{grid-template-columns:1fr}
  .reass{grid-template-columns:1fr 1fr}
  .cat-head{align-items:baseline}.cat-more{margin-left:0;flex-basis:100%}
}
@media(max-width:400px){
  .wrap{padding:0 16px}
  .grid,.grid.wide{grid-template-columns:1fr;gap:14px}
  .reass{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .price-row .now{font-size:1.8rem}
  .actions .btn{width:100%}
  .hero-frame{padding:28px 20px}
  .topbar .wrap{font-size:.72rem}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}