/* ==========================================================================
   EduClimb — "Les Marches" design system
   Studio de parcours & conception pédagogique IA — Paris
   ========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Literata:wght@600;700&family=Manrope:wght@400;600&family=Source+Code+Pro:wght@500&display=swap");

:root{
  /* Core palette */
  --wine:#1A1216;
  --umber:#2A221E;
  --parchment:#F3EDE4;
  --moss:#4A7C59;
  --copper:#B87333;
  --rose:#9A8488;

  /* Surface pairs (bg + fg) */
  --surface-wine-bg:#1A1216;
  --surface-wine-fg:#F3EDE4;
  --surface-parchment-bg:#F3EDE4;
  --surface-parchment-fg:#1A1216;
  --surface-umber-bg:#2A221E;
  --surface-umber-fg:#F3EDE4;
  --surface-moss-bg:#4A7C59;
  --surface-moss-fg:#F3EDE4;

  --font-display:"Literata", Georgia, serif;
  --font-body:"Manrope", -apple-system, Segoe UI, sans-serif;
  --font-mono:"Source Code Pro", "Courier New", monospace;

  --step:0.35rem;
  --radius:2px;
  --safety-ms:800ms;
}

/* ---------------------------------------------------------------------- */
/* Reset & base                                                          */
/* ---------------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important;scroll-behavior:auto!important;}
}
body{
  margin:0;
  font-family:var(--font-body);
  font-weight:400;
  color:var(--wine);
  background:var(--parchment);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.14;
  margin:0 0 0.6em;
}
h3{font-weight:600;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.3em;}
a{color:currentColor;text-decoration:none;}
a.underline-link{text-decoration:underline;text-decoration-color:var(--copper);text-decoration-thickness:1px;text-underline-offset:3px;}
strong{font-weight:600;}
.container{
  max-width:1180px;
  margin:0 auto;
  padding:0 1.5rem;
}
.container--narrow{max-width:820px;}
section{padding:5.5rem 0;}
@media (max-width:720px){
  section{padding:3.4rem 0;}
}

/* ---------------------------------------------------------------------- */
/* Surface system — ONLY these four combinations                        */
/* ---------------------------------------------------------------------- */
.surface-wine{background:var(--surface-wine-bg);color:var(--surface-wine-fg);}
.surface-parchment{background:var(--surface-parchment-bg);color:var(--surface-parchment-fg);}
.surface-umber{background:var(--surface-umber-bg);color:var(--surface-umber-fg);}
.surface-moss{background:var(--surface-moss-bg);color:var(--surface-moss-fg);}

/* ---------------------------------------------------------------------- */
/* Mono tags & eyebrows                                                  */
/* ---------------------------------------------------------------------- */
.mono-tag{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
}
.eyebrow{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:0.74rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--copper);
  display:inline-flex;
  align-items:center;
  gap:0.5rem;
  margin-bottom:1.1rem;
}
.numeral{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:0.78rem;
  color:var(--copper);
  letter-spacing:0.08em;
}

/* Hairline step rule */
.hairline{
  border:none;
  border-top:1px solid rgba(243,237,228,0.22);
  margin:2.2rem 0;
}
.surface-parchment .hairline,
.surface-moss .hairline{border-top-color:rgba(26,18,22,0.16);}

.step-rule{
  display:flex;
  align-items:center;
  gap:0.4rem;
  margin:1.6rem 0;
}
.step-rule span{
  display:block;
  height:1px;
  background:currentColor;
  opacity:0.25;
}
.step-rule .seg-1{width:2.4rem;}
.step-rule .seg-2{width:0.8rem;}
.step-rule .seg-3{width:0.4rem;}

/* Stepped-path motif — moss ticks, 3-4 steps */
.stepped-path{
  display:inline-flex;
  align-items:flex-end;
  gap:3px;
  height:20px;
}
.stepped-path span{
  display:block;
  width:6px;
  background:var(--moss);
  border-radius:1px;
}
.stepped-path span:nth-child(1){height:6px;}
.stepped-path span:nth-child(2){height:11px;}
.stepped-path span:nth-child(3){height:16px;}
.stepped-path span:nth-child(4){height:20px;}

/* ---------------------------------------------------------------------- */
/* Header                                                                 */
/* ---------------------------------------------------------------------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:transparent;
  color:var(--parchment);
  transition:background-color 240ms ease, color 240ms ease, box-shadow 240ms ease;
}
.site-header.is-scrolled{
  background:var(--surface-parchment-bg);
  color:var(--surface-parchment-fg);
  box-shadow:0 1px 0 rgba(26,18,22,0.08);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:1.15rem;
  padding-bottom:1.15rem;
}
.brand{
  display:flex;
  align-items:center;
  gap:0.6rem;
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.18rem;
  color:inherit;
}
.brand img{width:32px;height:32px;}
.main-nav{display:flex;align-items:center;gap:1.9rem;}
.main-nav a{
  font-family:var(--font-mono);
  font-size:0.74rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  font-weight:500;
  opacity:0.86;
  transition:opacity 160ms ease;
}
.main-nav a:hover,.main-nav a[aria-current="page"]{opacity:1;}
.main-nav a[aria-current="page"]{border-bottom:1px solid var(--copper);padding-bottom:2px;}
.nav-toggle{
  display:none;
  background:none;border:1px solid currentColor;border-radius:var(--radius);
  color:inherit;width:40px;height:36px;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:1px;background:currentColor;position:relative;
}
.nav-toggle span::before{content:"";position:absolute;top:-6px;width:18px;height:1px;background:currentColor;}
.nav-toggle span::after{content:"";position:absolute;top:6px;width:18px;height:1px;background:currentColor;}
.header-cta{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  padding:0.6rem 1.05rem;
  border:1px solid currentColor;
  border-radius:var(--radius);
  white-space:nowrap;
}
@media (max-width:860px){
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:var(--surface-wine-bg);color:var(--surface-wine-fg);
    flex-direction:column;justify-content:center;align-items:flex-start;
    gap:1.6rem;padding:2rem 1.8rem;
    transform:translateY(-100%);
    transition:transform 260ms ease;
  }
  .main-nav.is-open{transform:translateY(0);}
  .main-nav a{font-size:1rem;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .main-nav .header-cta{display:inline-block;margin-top:0.6rem;}
}

/* ---------------------------------------------------------------------- */
/* Hero — "Les Marches" full-bleed                                       */
/* ---------------------------------------------------------------------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  color:var(--parchment);
  overflow:hidden;
}
@media (max-width:720px){
  .hero{min-height:82vh;}
}
.hero-bg{
  position:absolute;inset:0;
  z-index:0;
}
.hero-bg img{
  width:100%;height:100%;object-fit:cover;object-position:center 30%;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(26,18,22,0.94) 0%, rgba(26,18,22,0.82) 34%, rgba(26,18,22,0.55) 62%, rgba(26,18,22,0.28) 100%);
}
.hero-topbar{
  position:relative;z-index:2;
  padding-top:6.2rem;
}
.hero-topbar .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:0.6rem;
  border-bottom:1px solid rgba(243,237,228,0.28);
  padding-bottom:1rem;
}
.hero-topbar .mono-tag{color:var(--copper);}
.hero-topbar .mono-tag + .mono-tag{color:rgba(243,237,228,0.72);}
.hero-body{
  position:relative;z-index:2;
  padding:3.2rem 0 3.6rem;
}
.hero-body h1{
  font-size:clamp(2.1rem, 4.6vw, 3.6rem);
  max-width:15ch;
  color:var(--parchment);
}
.hero-body h1 .underline-moss{
  text-decoration:underline;
  text-decoration-color:var(--moss);
  text-decoration-thickness:5px;
  text-underline-offset:6px;
}
.hero-sub{
  max-width:46ch;
  font-size:1.02rem;
  color:rgba(243,237,228,0.86);
}
.hero-ctas{
  display:flex;
  gap:0.9rem;
  flex-wrap:wrap;
  margin:1.8rem 0 2.4rem;
}
.hero-trust{
  color:var(--rose);
  font-size:0.68rem;
  letter-spacing:0.1em;
}

/* ---------------------------------------------------------------------- */
/* Buttons                                                               */
/* ---------------------------------------------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:0.5rem;
  font-family:var(--font-mono);
  font-size:0.76rem;
  font-weight:500;
  letter-spacing:0.08em;
  text-transform:uppercase;
  padding:0.85rem 1.5rem;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform 160ms ease, background-color 160ms ease, opacity 160ms ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--moss);color:var(--parchment);border-color:var(--moss);}
.btn-primary:hover{background:#3f6b4c;}
.btn-outline{background:transparent;color:var(--parchment);border-color:rgba(243,237,228,0.6);}
.btn-outline:hover{background:rgba(243,237,228,0.1);}
.btn-outline-dark{background:transparent;color:var(--wine);border-color:rgba(26,18,22,0.42);}
.btn-outline-dark:hover{background:rgba(26,18,22,0.06);}
.btn-copper{background:var(--copper);color:var(--parchment);border-color:var(--copper);}
.btn-copper:hover{background:#a2652c;}
.btn-block{width:100%;justify-content:center;}
.btn:disabled{opacity:0.55;cursor:not-allowed;transform:none;}

/* ---------------------------------------------------------------------- */
/* Reveal animation — JS-gated, above-fold excluded                      */
/* ---------------------------------------------------------------------- */
.js .reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity 640ms ease, transform 640ms ease;
}
.js .reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none;}
}

/* ---------------------------------------------------------------------- */
/* Page hero (non-home pages)                                            */
/* ---------------------------------------------------------------------- */
.page-hero{
  padding:9.5rem 0 3.6rem;
}
.page-hero h1{max-width:22ch;}
.page-hero .lede{
  max-width:56ch;
  font-size:1.05rem;
  opacity:0.92;
}

/* ---------------------------------------------------------------------- */
/* Cards & grids                                                         */
/* ---------------------------------------------------------------------- */
.grid{display:grid;gap:1.8rem;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
}

.card{
  background:var(--surface-parchment-bg);
  color:var(--surface-parchment-fg); /* wine on parchment */
  border:1px solid rgba(26,18,22,0.1);
  border-radius:var(--radius);
  padding:1.9rem;
}
.card .numeral{display:block;margin-bottom:0.7rem;color:var(--copper);}
.card h3{font-size:1.15rem;color:inherit;}
.card p{margin-bottom:0;font-size:0.94rem;color:inherit;}
.card .eyebrow{color:var(--copper);}
.card a{color:currentColor;}
/* Transparent cards on dark surfaces (umber / wine) — light text */
.card--on-dark{
  background:transparent;
  color:var(--parchment);
  border-color:rgba(243,237,228,0.22);
}
.card--on-dark h3,
.card--on-dark p{color:var(--parchment);}
.card--on-dark .numeral{color:var(--copper);}

.stat{
  border-left:2px solid var(--moss);
  padding-left:1.1rem;
}
.stat .figure{
  font-family:var(--font-display);
  font-weight:700;
  font-size:2.4rem;
  display:block;
  line-height:1;
  margin-bottom:0.35rem;
}
.stat .label{
  font-size:0.88rem;
  opacity:0.78;
}
.stat .note{
  font-family:var(--font-mono);
  font-size:0.62rem;
  letter-spacing:0.06em;
  opacity:0.6;
  display:block;
  margin-top:0.4rem;
}

.stage-card{
  position:relative;
  padding-top:2.4rem;
}
.stage-card .numeral{
  position:absolute;top:0;left:0;
}

/* Section heads */
.section-head{
  max-width:46ch;
  margin-bottom:2.6rem;
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* Photo blocks */
.media-frame{
  overflow:hidden;
  border-radius:var(--radius);
  position:relative;
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-frame.ratio-16-9{aspect-ratio:16/9;}
.media-frame.ratio-4-3{aspect-ratio:4/3;}
.media-frame.ratio-3-4{aspect-ratio:3/4;}
.media-frame.ratio-1-1{aspect-ratio:1/1;}
.media-caption{
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.06em;
  opacity:0.62;
  margin-top:0.6rem;
}

/* Split layout */
.split{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:3.2rem;
  align-items:center;
}
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:2rem;}
}
.split.reverse{grid-template-columns:0.95fr 1.05fr;}
@media (max-width:900px){.split.reverse{grid-template-columns:1fr;}}
.split.reverse .split-media{order:-1;}
@media (min-width:901px){.split.reverse .split-media{order:1;}}

/* Method / process list */
.method-list{list-style:none;padding:0;margin:0;}
.method-list li{
  display:grid;
  grid-template-columns:3.6rem 1fr;
  gap:1.2rem;
  padding:1.5rem 0;
  border-top:1px solid rgba(26,18,22,0.1);
}
.method-list li:first-child{border-top:none;}

/* FAQ accordion */
.faq-item{border-top:1px solid rgba(26,18,22,0.12);}
.faq-item:first-child{border-top:none;}
.faq-q{
  width:100%;
  text-align:left;
  background:none;
  border:none;
  padding:1.3rem 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:1rem;
  font-family:var(--font-display);
  font-weight:600;
  font-size:1.05rem;
  color:inherit;
  cursor:pointer;
}
.faq-q .icon{
  font-family:var(--font-mono);
  font-size:1.1rem;
  flex-shrink:0;
  transition:transform 200ms ease;
}
.faq-item[data-open="true"] .icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms ease;
}
.faq-a-inner{padding:0 0 1.4rem;max-width:64ch;opacity:0.9;}
.faq-item[data-open="true"] .faq-a{max-height:600px;}

/* Tags row */
.tags-row{
  display:flex;flex-wrap:wrap;gap:0.5rem 1.2rem;
}
.tags-row .mono-tag::after{content:"·";margin-left:1.2rem;opacity:0.5;}
.tags-row .mono-tag:last-child::after{content:"";}

/* Pricing note */
.price-note{
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--copper);
  display:block;
  margin-top:0.9rem;
}

/* Disclaimer box */
.disclaimer{
  border:1px solid rgba(26,18,22,0.15);
  border-left:3px solid var(--copper);
  padding:1.3rem 1.5rem;
  font-size:0.88rem;
  border-radius:var(--radius);
  background:rgba(184,115,51,0.05);
}
.surface-wine .disclaimer,.surface-umber .disclaimer{
  border-color:rgba(243,237,228,0.25);
  border-left-color:var(--copper);
  background:rgba(243,237,228,0.05);
}

/* CTA band */
.cta-band{text-align:center;}
.cta-band h2{max-width:26ch;margin:0 auto 1rem;}
.cta-band p{max-width:48ch;margin:0 auto 1.6rem;opacity:0.85;}
.cta-band-actions{display:flex;gap:0.9rem;justify-content:center;flex-wrap:wrap;}

/* ---------------------------------------------------------------------- */
/* Forms                                                                  */
/* ---------------------------------------------------------------------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
.field{margin-bottom:1.3rem;}
.field label{
  display:block;
  font-family:var(--font-mono);
  font-size:0.7rem;
  letter-spacing:0.07em;
  text-transform:uppercase;
  margin-bottom:0.5rem;
  opacity:0.75;
}
.field input,.field select,.field textarea{
  width:100%;
  font-family:var(--font-body);
  font-size:0.95rem;
  padding:0.75rem 0.9rem;
  border:1px solid rgba(26,18,22,0.22);
  border-radius:var(--radius);
  background:#fff;
  color:var(--wine);
}
.field textarea{min-height:140px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--moss);outline-offset:1px;
}
.field-check{display:flex;align-items:flex-start;gap:0.6rem;font-size:0.85rem;}
.field-check input{width:auto;margin-top:0.25rem;}
.hp-field{position:absolute;left:-9999px;top:-9999px;opacity:0;height:0;width:0;}
.form-note{font-size:0.78rem;opacity:0.7;margin-top:0.4rem;}
.form-success{
  border:1px solid var(--moss);
  background:rgba(74,124,89,0.08);
  padding:1.2rem 1.4rem;
  border-radius:var(--radius);
  margin-bottom:1.8rem;
}

/* ---------------------------------------------------------------------- */
/* Footer                                                                 */
/* ---------------------------------------------------------------------- */
.site-footer{
  padding:4rem 0 2.4rem;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:2.2rem;
  padding-bottom:2.4rem;
}
@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .footer-top{grid-template-columns:1fr;}
}
.footer-brand{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.25rem;
  margin-bottom:0.8rem;
  display:flex;align-items:center;gap:0.6rem;
}
.footer-brand img{width:28px;height:28px;}
.footer-col h4{
  font-family:var(--font-mono);
  font-size:0.7rem;
  letter-spacing:0.09em;
  text-transform:uppercase;
  opacity:0.6;
  margin-bottom:1rem;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:0.6rem;font-size:0.9rem;}
.footer-col a:hover{opacity:0.7;}
.footer-meta{
  border-top:1px solid rgba(243,237,228,0.16);
  padding-top:1.8rem;
  font-size:0.8rem;
  opacity:0.7;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:1rem;
}
.footer-disclaimer{
  font-size:0.78rem;
  opacity:0.62;
  max-width:74ch;
  margin-top:1.4rem;
  line-height:1.55;
}
.footer-legal-links{display:flex;gap:1.2rem;flex-wrap:wrap;}

/* ---------------------------------------------------------------------- */
/* Cookie banner                                                          */
/* ---------------------------------------------------------------------- */
.cookie-banner{
  position:fixed;
  left:1rem;right:1rem;bottom:1rem;
  z-index:200;
  max-width:720px;
  margin:0 auto;
  background:var(--surface-umber-bg);
  color:var(--surface-umber-fg);
  border:1px solid rgba(243,237,228,0.22);
  border-radius:var(--radius);
  padding:1.4rem 1.6rem;
  box-shadow:0 10px 30px rgba(0,0,0,0.28);
  display:none;
}
.cookie-banner.is-visible{display:block;}
.cookie-banner p{font-size:0.86rem;margin-bottom:1rem;opacity:0.92;color:var(--parchment);}
.cookie-banner .cookie-note{
  font-family:var(--font-mono);
  font-size:0.66rem;
  opacity:0.75;
  margin-top:0.8rem;
  margin-bottom:0;
  color:var(--parchment);
}
.cookie-banner .cookie-note a{color:var(--copper);text-decoration:underline;}
.cookie-actions{display:flex;gap:0.7rem;flex-wrap:wrap;align-items:center;}
.cookie-banner .btn{
  min-height:2.75rem;
  padding:0.7rem 1.25rem;
  font-weight:600;
  font-size:0.875rem;
}
.cookie-banner .btn-primary{
  background:var(--moss);
  color:var(--parchment);
  border:2px solid var(--moss);
  box-shadow:0 2px 10px rgba(0,0,0,0.25);
}
.cookie-banner .btn-primary:hover{
  filter:brightness(1.08);
  background:#3f6b4c;
}
/* Outline buttons must stay light on the dark umber banner */
.cookie-banner .btn-outline-dark,
.cookie-banner .btn-outline{
  background:rgba(243,237,228,0.08);
  color:var(--parchment);
  border:2px solid rgba(243,237,228,0.75);
}
.cookie-banner .btn-outline-dark:hover,
.cookie-banner .btn-outline:hover{
  background:rgba(243,237,228,0.18);
  border-color:var(--parchment);
  color:var(--parchment);
}
.cookie-panel{
  display:none;
  margin-top:1rem;
  padding-top:1rem;
  border-top:1px solid rgba(243,237,228,0.18);
}
.cookie-panel.is-open{display:block;}
.cookie-panel .field-check{margin-bottom:0.7rem;color:var(--parchment);}
.cookie-panel .field-check label{color:var(--parchment);}

/* ---------------------------------------------------------------------- */
/* Utility                                                                */
/* ---------------------------------------------------------------------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.mb-0{margin-bottom:0;}
.skip-link{
  position:absolute;left:-9999px;top:0;
  background:var(--moss);color:#fff;padding:0.6rem 1rem;z-index:999;
}
.skip-link:focus{left:1rem;top:1rem;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;
}