/* =========================================================
   VAYNERO — Bois de chauffage & énergie
   Design tokens : forêt, chaleur, bois, confiance
   ========================================================= */

:root{
  --forest:        #1F4D2E;
  --forest-deep:   #143820;
  --forest-light:  #3C7A52;
  --wood:          #B97A4B;
  --wood-dark:     #8B5A34;
  --ember:         #D97706;
  --cream:         #FAF7F0;
  --sage:          #EEF1E7;
  --charcoal:      #24211D;
  --charcoal-70:   rgba(36,33,29,.7);
  --charcoal-45:   rgba(36,33,29,.45);
  --line:          rgba(36,33,29,.12);
  --white:         #FFFFFF;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, Segoe UI, sans-serif;

  --radius: 14px;
  --radius-sm: 8px;
  --container: 1180px;
  --shadow: 0 10px 30px rgba(20,56,32,.08);
  --shadow-lg: 0 24px 60px rgba(20,56,32,.16);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--charcoal);
  background:var(--cream);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:3px solid var(--ember);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms !important;transition-duration:.001ms !important}}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.eyebrow{
  font-family:var(--font-body);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--forest);
  display:inline-flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--wood)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;border-radius:999px;border:1px solid transparent;
  font-weight:600;font-size:.98rem;transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  min-height:48px;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--forest);color:var(--white)}
.btn-primary:hover{background:var(--forest-deep);box-shadow:var(--shadow)}
.btn-ember{background:var(--ember);color:var(--white)}
.btn-ember:hover{background:#B85F04;box-shadow:var(--shadow)}
.btn-outline{background:transparent;border-color:var(--charcoal);color:var(--charcoal)}
.btn-outline:hover{background:var(--charcoal);color:var(--white)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:var(--white)}
.btn-outline-light:hover{background:rgba(255,255,255,.15)}
.btn-block{width:100%}
.btn-sm{padding:10px 16px;min-height:38px;font-size:.88rem}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(250,247,240,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:var(--container);margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.35rem;color:var(--forest-deep)}
.logo .ring{width:30px;height:30px;flex:none}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--charcoal-70);transition:color .15s}
.nav-links a:hover{color:var(--forest)}
.header-actions{display:flex;align-items:center;gap:14px}
.cart-btn{position:relative;display:flex;align-items:center;gap:8px;background:var(--forest);color:#fff;border-radius:999px;padding:10px 18px;font-weight:600;font-size:.92rem}
.cart-count{background:var(--ember);color:#fff;border-radius:999px;min-width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;font-size:.72rem;padding:0 5px}
.nav-toggle{display:none;background:none;border:none;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--charcoal);margin:5px 0;transition:.2s}

@media (max-width: 860px){
  .nav-links{position:fixed;top:72px;left:0;right:0;height:calc(100vh - 72px);background:var(--cream);flex-direction:column;gap:0;align-items:stretch;
    transform:translateY(-2000px);transition:transform .25s ease;padding:12px 24px;border-top:1px solid var(--line);overflow-y:auto;}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:16px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--forest-deep) 0%, var(--forest) 100%);color:#fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:96px 0 80px}
.hero h1{font-size:clamp(2.4rem,4.6vw,3.6rem);line-height:1.05;color:#fff}
.hero h1 em{font-style:normal;color:#EBC98A}
.hero .lede{color:rgba(255,255,255,.82);font-size:1.12rem;max-width:46ch}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-visual{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.hero-visual svg{width:100%;height:100%}
.hero-bg-ring{position:absolute;inset:-20% -10% auto auto;opacity:.15;width:520px}

/* ---------- Rings (signature motif) ---------- */
.ring-divider{display:flex;align-items:center;gap:16px;margin:64px 0 40px}
.ring-divider .line{flex:1;height:1px;background:var(--line)}
.ring-divider svg{width:34px;height:34px;flex:none}

/* ---------- Trust strip ---------- */
.trust-strip{background:var(--sage);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0;text-align:center}
.trust-grid div{font-size:.86rem;color:var(--charcoal-70);font-weight:600}
.trust-grid strong{display:block;font-family:var(--font-display);font-size:1.4rem;color:var(--forest-deep);font-weight:700}
@media (max-width:760px){.trust-grid{grid-template-columns:1fr 1fr}}

/* ---------- Cards / products ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:900px){.grid-3{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}.hero-grid{grid-template-columns:1fr}}

.category-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;transition:transform .2s ease, box-shadow .2s ease;
}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.category-card .icon{width:46px;height:46px;color:var(--wood);margin-bottom:18px}
.category-card h3{font-size:1.25rem}
.category-card p{color:var(--charcoal-70);font-size:.94rem}

.product-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:box-shadow .2s ease, transform .2s ease;
}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.product-media{aspect-ratio:4/3;background:var(--sage);position:relative;overflow:hidden}
.product-media svg{width:100%;height:100%}
.badge{position:absolute;top:12px;left:12px;background:var(--forest);color:#fff;font-size:.72rem;font-weight:700;padding:5px 11px;border-radius:999px;letter-spacing:.03em}
.badge.out{background:var(--charcoal-45)}
.badge.cert{background:var(--ember)}
.product-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-body h3{font-size:1.08rem;margin-bottom:2px}
.product-desc{color:var(--charcoal-70);font-size:.88rem;flex:1}
.product-meta{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--charcoal-70)}
.product-price{font-family:var(--font-display);font-size:1.35rem;font-weight:700;color:var(--forest-deep)}
.product-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px}
.qty-input{width:56px;padding:8px;border:1px solid var(--line);border-radius:var(--radius-sm);text-align:center}

/* ---------- Filters ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.filter-chip{padding:9px 18px;border-radius:999px;border:1px solid var(--line);font-size:.88rem;font-weight:600;background:var(--white);color:var(--charcoal-70)}
.filter-chip.active{background:var(--forest);border-color:var(--forest);color:#fff}

/* ---------- Cart drawer ---------- */
.cart-overlay{position:fixed;inset:0;background:rgba(20,20,15,.45);opacity:0;pointer-events:none;transition:opacity .2s;z-index:80}
.cart-overlay.open{opacity:1;pointer-events:auto}
.cart-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(420px,100%);background:var(--white);
  z-index:90;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-16px 0 40px rgba(0,0,0,.18);
}
.cart-drawer.open{transform:translateX(0)}
.cart-head{display:flex;align-items:center;justify-content:space-between;padding:22px 22px;border-bottom:1px solid var(--line)}
.cart-head h3{margin:0;font-size:1.2rem}
.cart-close{background:none;border:none;font-size:1.4rem;line-height:1;color:var(--charcoal-70)}
.cart-items{flex:1;overflow-y:auto;padding:16px 22px}
.cart-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.cart-item-media{width:64px;height:64px;border-radius:var(--radius-sm);background:var(--sage);flex:none;overflow:hidden}
.cart-item-info{flex:1;min-width:0}
.cart-item-info h4{font-size:.92rem;margin:0 0 4px}
.cart-item-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px}
.qty-stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.qty-stepper button{width:28px;height:28px;background:var(--sage);border:none;font-size:1rem}
.qty-stepper input{width:34px;border:none;text-align:center;background:transparent}
.remove-link{font-size:.8rem;color:var(--charcoal-45);text-decoration:underline;border:none;background:none;cursor:pointer}
.cart-empty{padding:60px 20px;text-align:center;color:var(--charcoal-45)}
.cart-summary{border-top:1px solid var(--line);padding:20px 22px;background:var(--sage)}
.summary-row{display:flex;justify-content:space-between;font-size:.92rem;margin-bottom:8px;color:var(--charcoal-70)}
.summary-row.total{font-size:1.15rem;font-weight:700;color:var(--charcoal);border-top:1px solid var(--line);padding-top:12px;margin-top:4px}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:700px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.field label{font-size:.86rem;font-weight:600}
.field label .opt{font-weight:400;color:var(--charcoal-45)}
.field input, .field select, .field textarea{
  padding:13px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--forest)}
.field.error input,.field.error select,.field.error textarea{border-color:#C0392B}
.error-msg{font-size:.78rem;color:#C0392B;display:none}
.field.error .error-msg{display:block}

.delivery-options{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0 28px}
@media (max-width:640px){.delivery-options{grid-template-columns:1fr}}
.delivery-card{border:2px solid var(--line);border-radius:var(--radius);padding:20px;cursor:pointer;position:relative;background:var(--white);transition:border-color .15s,box-shadow .15s}
.delivery-card.selected{border-color:var(--forest);box-shadow:0 0 0 3px rgba(31,77,46,.12)}
.delivery-card input{position:absolute;top:18px;right:18px}
.delivery-card .dprice{font-family:var(--font-display);font-size:1.3rem;font-weight:700;color:var(--forest-deep);margin-top:8px}

.payment-card{border:2px solid var(--line);border-radius:var(--radius);padding:20px;cursor:pointer;position:relative;background:var(--white);transition:border-color .15s,box-shadow .15s;display:flex;align-items:center;gap:14px}
.payment-card.selected{border-color:var(--forest);box-shadow:0 0 0 3px rgba(31,77,46,.12)}
.payment-card .picon{width:38px;height:38px;flex:none;color:var(--wood)}
.payment-info-box{background:var(--sage);border-radius:var(--radius);padding:22px;margin-top:18px}
.payment-info-box h4{font-family:var(--font-display);font-size:1rem;margin-bottom:12px}
.payment-note{font-size:.84rem;color:var(--charcoal-70);margin-top:14px}
.status-pill{display:inline-flex;align-items:center;gap:6px;background:#FBEFDD;color:#8B5A00;font-size:.8rem;font-weight:700;padding:6px 14px;border-radius:999px}
.status-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:#D97706}

.check-row{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;margin:20px 0}
.check-row input{margin-top:3px}

/* ---------- Steps ---------- */
.steps{display:flex;align-items:center;gap:10px;margin-bottom:44px;flex-wrap:wrap}
.step{display:flex;align-items:center;gap:10px;font-size:.85rem;font-weight:600;color:var(--charcoal-45)}
.step .num{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--font-display)}
.step.active{color:var(--forest-deep)}
.step.active .num{background:var(--forest);border-color:var(--forest);color:#fff}
.step-sep{width:28px;height:1px;background:var(--line)}

/* ---------- Recap table ---------- */
.recap-table{width:100%;border-collapse:collapse;margin:18px 0}
.recap-table th{text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--charcoal-45);padding:0 0 10px;border-bottom:1px solid var(--line)}
.recap-table td{padding:12px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.recap-table td:last-child,.recap-table th:last-child{text-align:right}

.panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.panel + .panel{margin-top:24px}

@media (max-width:900px){
  #checkoutLayout{grid-template-columns:1fr !important}
}
@media (max-width:760px){
  .product-detail-grid{grid-template-columns:1fr !important}
}

/* ---------- Confirmation ---------- */
.confirm-hero{text-align:center;padding:70px 0 30px}
.confirm-hero .ring-mark{width:74px;height:74px;margin:0 auto 20px;color:var(--forest)}
.order-number{display:inline-block;background:var(--sage);color:var(--forest-deep);font-family:var(--font-display);font-weight:700;font-size:1.2rem;padding:10px 22px;border-radius:999px;margin:14px 0 6px}

/* ---------- Footer ---------- */
.site-footer{background:var(--forest-deep);color:rgba(255,255,255,.75);padding:64px 0 28px;margin-top:100px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px;font-family:var(--font-body);font-weight:700}
.footer-grid ul li{margin-bottom:10px;font-size:.9rem}
.footer-grid a:hover{color:#fff}
.footer-logo{color:#fff;font-family:var(--font-display);font-size:1.3rem;font-weight:700;margin-bottom:12px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:.8rem;color:rgba(255,255,255,.5)}

/* ---------- Toast ---------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--charcoal);color:#fff;
  padding:14px 22px;border-radius:999px;font-size:.9rem;font-weight:600;opacity:0;pointer-events:none;transition:.25s;z-index:100;box-shadow:var(--shadow-lg)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Scroll reveal ---------- */
/* .reveal is visible by default (no-JS / crawlers / screenshot tools always see full content).
   JS adds .pre-reveal only once it can guarantee a later .in-view toggle via IntersectionObserver. */
.reveal.pre-reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.pre-reveal.in-view{opacity:1;transform:none}

/* ---------- Grid 4 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:900px){.grid-4{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid-4{grid-template-columns:1fr}}

/* ---------- Step cards (process explainers) ---------- */
.step-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .2s ease, box-shadow .2s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-card .step-no{font-family:var(--font-display);font-weight:700;color:var(--wood);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.step-card h3{font-size:1.08rem}
.step-card p{color:var(--charcoal-70);font-size:.9rem;margin:0}

/* ---------- Checklist ---------- */
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px;margin:28px 0}
@media(max-width:640px){.checklist{grid-template-columns:1fr}}
.checklist li{display:flex;align-items:flex-start;gap:12px;font-size:.95rem;color:var(--charcoal-70)}
.checklist .check-icon{flex:none;width:22px;height:22px;border-radius:50%;background:var(--forest);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;margin-top:1px}

/* ---------- Timeline ---------- */
.timeline{display:flex;align-items:flex-start;margin:40px 0}
.timeline-item{flex:1;text-align:center;position:relative;padding:0 16px}
.timeline-item::before{content:"";position:absolute;top:20px;left:-50%;width:100%;height:2px;background:var(--line);z-index:0}
.timeline-item:first-child::before{display:none}
.timeline-dot{width:40px;height:40px;border-radius:50%;background:var(--forest);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;margin:0 auto 14px;position:relative;z-index:1}
.timeline-item h4{font-size:1.05rem;margin-bottom:4px}
.timeline-item .t-price{font-family:var(--font-display);font-weight:700;color:var(--forest-deep);font-size:1.15rem}
@media(max-width:640px){.timeline{flex-direction:column;gap:28px}.timeline-item::before{display:none}}

/* ---------- FAQ search ---------- */
.faq-search{position:relative;max-width:520px}
.faq-search input{width:100%;padding:16px 20px 16px 50px;border-radius:999px;border:1px solid var(--line);background:var(--white);font-size:1rem;box-shadow:var(--shadow)}
.faq-search input:focus{border-color:var(--forest)}
.faq-search .search-icon{position:absolute;left:20px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--charcoal-45);font-size:1.1rem}
.faq-reset-btn{display:none;align-items:center;gap:6px;background:none;border:none;color:var(--forest);font-size:.85rem;font-weight:600;text-decoration:underline;cursor:pointer;margin-top:10px}
.faq-no-results{display:none;text-align:center;padding:50px 20px;color:var(--charcoal-45)}
.faq-cat-count{font-size:.7rem;font-weight:700;opacity:.7}

/* ---------- FAQ accordion v2 (JS-driven, single-open, animated) ---------- */
.faq2-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;background:var(--white);transition:box-shadow .2s ease}
.faq2-item.open{box-shadow:var(--shadow)}
.faq2-item.hidden{display:none}
.faq2-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;text-align:left;font-family:var(--font-display);font-size:1.02rem;font-weight:600;color:var(--charcoal);cursor:pointer}
.faq2-icon{flex:none;width:28px;height:28px;border-radius:50%;background:var(--sage);color:var(--forest-deep);display:flex;align-items:center;justify-content:center;font-size:1.15rem;font-weight:700;transition:transform .25s ease, background .25s ease, color .25s ease}
.faq2-item.open .faq2-icon{background:var(--forest);color:#fff;transform:rotate(135deg)}
.faq2-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq2-answer-inner{padding:0 22px 20px;color:var(--charcoal-70);font-size:.94rem}
.faq2-answer-inner p{margin:0}

/* ---------- Legal page (mentions légales) ---------- */
.legal-section{scroll-margin-top:100px}
.legal-icon{width:46px;height:46px;border-radius:50%;background:var(--sage);color:var(--forest-deep);display:flex;align-items:center;justify-content:center;font-size:1.35rem;margin-bottom:16px}
.legal-todo{background:#FBF2E2;border-left:3px solid var(--wood);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:12px 16px;font-size:.87rem;color:var(--charcoal-70);margin-top:12px}
.legal-todo strong{color:var(--wood)}
.legal-content h3{margin-top:1.4em;font-size:1.05rem}
.legal-content table{width:100%;border-collapse:collapse;margin-top:14px;font-size:.88rem}
.legal-content table th,.legal-content table td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);color:var(--charcoal-70)}
.legal-content table th{color:var(--charcoal);font-weight:700}

/* ---------- Misc ---------- */
.legal-content h2{margin-top:2em;font-size:1.3rem}
.legal-content p,.legal-content li{color:var(--charcoal-70)}
.legal-content li{margin-bottom:.4em}
.faq-item{border-bottom:1px solid var(--line);padding:18px 0}
.faq-item summary{cursor:pointer;font-weight:600;font-family:var(--font-display);font-size:1.05rem}
.faq-item p{margin-top:10px;color:var(--charcoal-70)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--forest);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:12px;top:12px}