/* ==========================================================================
   LFCM - Atelier Vallorbe - design tokens + base
   ========================================================================== */
:root{
  --bg:#15181B;
  --surface:#1D2226;
  --surface-2:#242A2F;
  --ink:#F3F1EA;
  --ink-dim:#C7C4BA;
  --accent:#D9480F;
  --accent-ink:#FFF4EC;
  --muted:#8A94A0;
  --line: rgba(138,148,160,0.22);

  --font-display:'Barlow Condensed', sans-serif;
  --font-body:'Barlow', sans-serif;

  --sm:8px; --md:16px; --lg:32px; --xl:64px; --xxl:112px;
  --r-sm:2px; --r-md:4px;

  --container: 1180px;
}

*,*::before,*::after{box-sizing:border-box}
:where(html){scroll-behavior:smooth}
:where(body,h1,h2,h3,h4,p,ul,ol,figure,blockquote){margin:0;padding:0}
:where(ul,ol){list-style:none}
:where(a){color:inherit;text-decoration:none}
:where(img,svg){display:block;max-width:100%;height:auto}
:where(button,input,textarea){font:inherit;color:inherit}
:where(address){font-style:normal}

html{-webkit-font-smoothing:antialiased}
body{
  background:#FFFFFF;
  color:#0D0F18;
  font-family:var(--font-body);
  font-weight:400;
  font-size:17px;
  line-height:1.6;
}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--accent-ink);padding:12px 20px;z-index:200}
.skip-link:focus{left:16px;top:16px}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.02;
  letter-spacing:-0.01em;
  text-wrap:balance;
}
h1{font-size:clamp(2.6rem,6vw,4.6rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:clamp(1.35rem,2.4vw,1.75rem)}
p{max-width:65ch}
p.lede{font-size:1.2rem;color:var(--ink-dim);max-width:52ch}

.container{max-width:var(--container);margin-inline:auto;padding-inline:24px}
.section{padding-block:var(--xl)}
.section--tight{padding-block:var(--lg)}

.eyebrow{
  display:inline-block;
  font-family:var(--font-body);
  font-weight:600;
  font-size:0.78rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:var(--sm);
}

/* Buttons ------------------------------------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  border-radius:var(--r-sm);
  font-family:var(--font-body);
  font-weight:600;
  font-size:0.85rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  border:1px solid transparent;
  transition:transform .18s ease, background-color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn--accent{background:var(--accent);color:var(--accent-ink)}
.btn--accent:hover{transform:translateY(-2px);background:#c4400c}
.btn--outline{border-color:var(--ink-dim);color:var(--ink)}
.btn--outline:hover{transform:translateY(-2px);border-color:var(--ink)}
.btn--ghost{color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--muted)}

/* Header ---------------------------------------------------------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(21,24,27,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:84px}
.brand{display:flex;flex-direction:column;line-height:1}
.brand__mark{font-family:var(--font-display);font-weight:900;font-size:1.9rem;letter-spacing:0.01em}
.brand__tag{font-size:0.68rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);margin-top:2px}

.nav{display:flex;align-items:center}
.nav__toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;background:none;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;
}
.nav__toggle span{display:block;width:18px;height:2px;background:var(--ink);margin-inline:auto}
.nav__panel{display:flex;align-items:center;gap:var(--lg)}
.nav__list{display:flex;align-items:center;gap:28px}
.nav__list a{font-weight:500;font-size:0.95rem;position:relative;padding-block:4px}
.nav__list a:hover{color:var(--accent)}
.nav__phone{display:none;font-weight:600;color:var(--ink-dim)}

@media (min-width:960px){ .nav__phone{display:inline} }

@media (max-width:959px){
  .nav__toggle{display:flex}
  .nav__panel{
    position:fixed;inset:84px 0 auto 0;background:var(--bg);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:var(--lg);padding:var(--lg) 24px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .2s ease, transform .2s ease;
  }
  .nav__panel.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav__list{flex-direction:column;align-items:flex-start;gap:18px}
  .nav__cta{width:100%;justify-content:center}
}

/* Hero -------------------------------------------------------------------- */
.hero{position:relative;padding-block:var(--xxl) var(--xl);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:var(--xl);align-items:center}
.hero__title{margin-bottom:var(--md)}
.hero__title em{font-style:normal;color:var(--accent)}
.hero__actions{display:flex;gap:var(--md);margin-top:var(--lg);flex-wrap:wrap}
.hero__visual{
  aspect-ratio:4/5;
  position:relative;
  clip-path:polygon(0 0,100% 0,100% 88%,88% 100%,0 100%);
}
.hero__visual::after{
  content:'';position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg, rgba(243,241,234,0.05) 0 2px, transparent 2px 26px),
    linear-gradient(155deg,#3a4048 0%,#20242a 45%,#111417 100%);
}
.hero__visual::before{
  content:'';position:absolute;right:0;bottom:0;width:46%;height:46%;
  background:var(--accent);opacity:.9;
  clip-path:polygon(100% 0,100% 100%,0 100%);
  z-index:1;
}

@media (max-width:900px){
  .hero__grid{grid-template-columns:1fr;gap:var(--lg)}
  .hero__visual{order:-1;aspect-ratio:16/10}
}

/* Stat strip --------------------------------------------------------------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--lg)}
.stat__num{font-family:var(--font-display);font-weight:900;font-size:clamp(2.4rem,5vw,3.6rem);color:var(--accent);line-height:1}
.stat__label{color:var(--ink-dim);margin-top:6px;font-size:0.95rem}
@media (max-width:700px){ .stats__grid{grid-template-columns:1fr;gap:var(--md)} }

/* Section headers ------------------------------------------------------- */
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:var(--lg);margin-bottom:var(--lg)}
.section-head .btn{flex:none}

/* Services bento ---------------------------------------------------------- */
.services-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.service-card{
  grid-column:span 3;
  background:var(--surface);
  padding:var(--lg);
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:240px;
  transition:background-color .2s ease;
}
.service-card:hover{background:var(--surface-2)}
.service-card--feature{grid-column:span 6;min-height:320px;background:var(--surface-2)}
.service-card__num{font-family:var(--font-display);color:var(--accent);font-weight:900;font-size:1.1rem}
.service-card__title{margin-top:var(--md)}
.service-card p{color:var(--ink-dim);margin-top:10px;font-size:0.98rem}
.service-card__link{margin-top:var(--lg);font-weight:600;font-size:0.85rem;letter-spacing:0.04em;text-transform:uppercase;display:inline-flex;align-items:center;gap:8px;color:var(--ink)}
.service-card:hover .service-card__link{color:var(--accent)}

@media (min-width:760px){ .service-card:nth-child(2){grid-column:span 3} }
@media (max-width:759px){
  .services-grid{grid-template-columns:1fr}
  .service-card,.service-card--feature{grid-column:span 1}
}

/* Split section (about teaser, page intros) ------------------------------- */
.split{display:grid;grid-template-columns:0.9fr 1.1fr;gap:var(--xl);align-items:center}
.split--reverse{grid-template-columns:1.1fr 0.9fr}
.split--reverse .split__visual{order:2}
.split__visual{aspect-ratio:1/1;position:relative;clip-path:polygon(0 0,100% 0,100% 100%,12% 100%);}
.split__visual::after{
  content:'';position:absolute;inset:0;
  background:
    repeating-linear-gradient(70deg, rgba(217,72,15,0.10) 0 2px, transparent 2px 30px),
    linear-gradient(160deg,#2a3038 0%,#181c20 60%);
}
@media (max-width:900px){
  .split,.split--reverse{grid-template-columns:1fr}
  .split--reverse .split__visual{order:-1}
  .split__visual{aspect-ratio:16/10}
}

/* Zone d'intervention ------------------------------------------------------ */
.zone{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.zone__list{display:flex;flex-wrap:wrap;gap:var(--sm) var(--lg);margin-top:var(--md)}
.zone__list li{font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:var(--ink-dim)}
.zone__list li.is-base{color:var(--accent)}

/* CTA band ------------------------------------------------------------- */
.cta-band{background:var(--surface-2);border-top:1px solid var(--line)}
.cta-band__inner{display:flex;justify-content:space-between;align-items:center;gap:var(--lg);flex-wrap:wrap}

/* Footer ---------------------------------------------------------------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding-top:var(--xl)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:var(--xl)}
.footer__brand p{color:var(--ink-dim);margin-block:var(--md);font-size:0.95rem}
.footer__col h3{font-family:var(--font-body);font-weight:600;font-size:0.8rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);margin-bottom:var(--md)}
.footer__col ul li{margin-bottom:10px}
.footer__col ul a:hover{color:var(--accent)}
.footer__col p,.footer__col address{color:var(--ink-dim);margin-bottom:8px;line-height:1.5}
.footer__zone{margin-bottom:var(--lg)}
.footer__bottom{border-top:1px solid var(--line);margin-top:var(--xl);padding-block:var(--lg);color:var(--muted);font-size:0.85rem}
@media (max-width:800px){ .footer__grid{grid-template-columns:1fr;gap:var(--lg)} }

/* Reveal on scroll (motion: 0.3, subtle) ---------------------------------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
html.js .reveal.is-visible{opacity:1;transform:none}
html:not(.js) .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){ .reveal{opacity:1 !important;transform:none !important;transition:none !important} }

/* Generic content page (about, services) ----------------------------------- */
.page-hero{padding-block:var(--xxl) var(--lg);border-bottom:1px solid var(--line)}
.breadcrumb{color:var(--muted);font-size:0.85rem;margin-bottom:var(--md)}
.breadcrumb a:hover{color:var(--accent)}

.points{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--md) var(--xl);margin-top:var(--lg)}
.points li{position:relative;padding-left:28px;color:var(--ink-dim)}
.points li::before{content:'';position:absolute;left:0;top:9px;width:14px;height:2px;background:var(--accent)}
@media (max-width:700px){ .points{grid-template-columns:1fr} }

.timeline{border-top:1px solid var(--line);margin-top:var(--lg)}
.timeline__row{display:grid;grid-template-columns:120px 1fr;gap:var(--lg);padding-block:var(--lg);border-bottom:1px solid var(--line)}
.timeline__year{font-family:var(--font-display);font-weight:900;font-size:1.8rem;color:var(--accent)}
.timeline__row p{color:var(--ink-dim)}

/* Contact ------------------------------------------------------------------ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--xl);align-items:start}
@media (max-width:900px){ .contact-grid{grid-template-columns:1fr} }

.field{margin-bottom:var(--md)}
.field label{display:block;font-size:0.8rem;letter-spacing:0.04em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 14px;color:var(--ink);font-size:1rem;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field textarea{min-height:150px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--md)}
@media (max-width:520px){ .field-row{grid-template-columns:1fr} }
.hp-field{position:absolute;left:-9999px}

.form-notice{padding:14px 16px;border-radius:var(--r-sm);margin-bottom:var(--lg);font-weight:600}
.form-notice--ok{background:rgba(217,72,15,0.15);border:1px solid var(--accent);color:var(--accent-ink)}
.form-notice--err{background:rgba(200,60,60,0.12);border:1px solid #c85050;color:#f3d0d0}

.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:var(--lg)}
.info-card h3{margin-bottom:var(--md)}
.info-card address,.info-card p{color:var(--ink-dim);margin-bottom:10px}
.info-card a:hover{color:var(--accent)}
.map-frame{border:1px solid var(--line);margin-top:var(--lg);filter:grayscale(0.6) invert(0.9) contrast(0.9);border-radius:var(--r-md);overflow:hidden}
.map-frame iframe{width:100%;height:280px;border:0;display:block}