/* Upbuy, site vitrine upbuy.io : feuille de style partagée (mobile d'abord) */

/* Polices auto-hébergées (licence SIL OFL), aucun appel à un service tiers */
@font-face{font-family:'Source Sans 3';font-style:normal;font-weight:300 800;font-display:swap;src:url(../fonts/SourceSans3-var.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Serif';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/IBMPlexSerif-Regular.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Serif';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/IBMPlexSerif-SemiBold.woff2) format('woff2')}

:root{
  --navy:#0e316a;
  --navy-dark:#0a2450;
  --navy-soft:#e8edf5;
  --gold:#b48d3a;
  --gold-dark:#8f6e27;
  --gold-soft:#f6efe0;
  --ink:#1c2533;
  --muted:#556072;
  --line:#dde2ea;
  --bg:#ffffff;
  --bg-alt:#f6f7f9;
  --radius:4px;
  --wrap:1120px;
  --serif:'IBM Plex Serif',Georgia,'Times New Roman',serif;
  --sans:'Source Sans 3',-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:var(--sans);font-size:1.0625rem;line-height:1.6;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-underline-offset:3px}
a:hover{color:var(--gold-dark)}
h1,h2,h3{font-family:var(--serif);font-weight:600;color:var(--navy);line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(1.9rem,6vw,3rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,4.2vw,2.1rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.2em}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:.6em 1em;z-index:100}
.skip:focus{left:0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:16px}
.brand img{height:38px;width:auto}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);padding:8px 12px;font:inherit;font-size:.95rem;color:var(--navy);cursor:pointer}
.js .nav-toggle{display:inline-flex;align-items:center;gap:8px}
.nav-toggle .bars{width:18px;height:2px;background:currentColor;position:relative;display:inline-block}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle .bars::before{top:-6px}.nav-toggle .bars::after{top:6px}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 18px}
.site-nav a{text-decoration:none;color:var(--ink);font-weight:500;padding:6px 0;display:inline-block}
.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--navy);box-shadow:inset 0 -2px 0 var(--gold)}
.site-nav .nav-cta a{color:var(--navy);font-weight:600}
.js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px 16px}
.js .site-nav.open{display:block}
.js .site-nav ul{flex-direction:column;gap:0}
.js .site-nav li{border-bottom:1px solid var(--line)}
.js .site-nav li:last-child{border-bottom:0}
.js .site-nav a{display:block;padding:12px 0}
.js .site-nav a:hover,.js .site-nav a[aria-current=page]{box-shadow:none;color:var(--gold-dark)}
@media (max-width:899px){body:not(.js) .site-header .wrap{flex-wrap:wrap;padding-bottom:8px}}

/* Sélecteur de langue EN | FR */
.lang-switch{display:inline-flex;align-items:center;gap:6px;margin-left:8px;font-size:.9rem;font-weight:600;flex-shrink:0}
.lang-switch a{text-decoration:none;color:var(--ink);padding:4px 2px;opacity:.55}
.lang-switch a:hover,.lang-switch a[aria-current=true]{color:var(--navy);opacity:1}
.lang-switch .sep{color:var(--line);font-weight:400;user-select:none}
@media (max-width:899px){
  .js .lang-switch{margin-left:auto;order:2}
  .js .nav-toggle{order:3}
  .js .brand{order:1}
}

/* Boutons */
.btn{display:inline-block;font:inherit;font-weight:600;text-decoration:none;border-radius:var(--radius);padding:.8em 1.4em;border:2px solid transparent;cursor:pointer;line-height:1.2;text-align:center}
.btn-gold{background:var(--gold);color:#fff;border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-dark);border-color:var(--gold-dark);color:#fff}
.btn-line{border-color:rgba(255,255,255,.55);color:#fff}
.btn-line:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-navy:hover{background:var(--navy-dark);border-color:var(--navy-dark);color:#fff}

/* Accroche */
.hero{background:var(--navy);color:#fff;padding:56px 0 60px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;border:34px solid rgba(180,141,58,.12);border-radius:0 0 130px 130px;pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.hero h1{color:#fff;max-width:20ch}
.hero .lead{font-size:1.15rem;color:#d9e1ee;max-width:58ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-aside{margin-top:40px;border-top:1px solid rgba(255,255,255,.2);padding-top:22px}
.hero-aside h2{font-family:var(--sans);font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#c5d0e2;margin-bottom:10px}
.hero-aside ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.hero-aside li{padding-left:20px;position:relative;color:#fff}
.hero-aside li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:2px;background:var(--gold)}

/* Sections */
.section{padding:60px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:34px}
.kicker{font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:8px;display:block}
.section-head p{color:var(--muted);font-size:1.1rem}

/* Points forts */
.points{display:grid;gap:0;border-top:1px solid var(--line)}
.point{padding:22px 0;border-bottom:1px solid var(--line)}
.point h3{margin-bottom:6px}
.point p{color:var(--muted);margin:0}

/* Prestations */
.cards{display:grid;gap:16px}
.card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--navy);border-radius:var(--radius);padding:22px 22px 18px}
.card h3{display:flex;gap:10px;align-items:baseline}
.card h3 .n{font-family:var(--sans);font-size:.85rem;font-weight:700;color:var(--gold-dark)}
.card p{color:var(--muted);margin-bottom:.6em}
.card ul{color:var(--muted);margin:0;font-size:.98rem}


/* Formats d'intervention */
.formats-grid{display:grid;gap:16px}
.fmt{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;position:relative}
.fmt-tag{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);background:var(--gold-soft);border-left:3px solid var(--gold);padding:3px 9px;margin-bottom:12px}
.fmt p{color:var(--muted);margin:0}
.inline-cta{margin-top:30px;padding:22px;border-radius:var(--radius);background:var(--navy-soft);display:grid;gap:14px;align-items:center}
.inline-cta p{margin:0;font-weight:600;color:var(--navy)}

/* Expertises */
.exp-grid{display:grid;gap:16px}
.exp{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:var(--radius);padding:22px}
.exp ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;color:var(--muted)}
.exp li{padding-left:18px;position:relative}
.exp li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:2px;background:var(--navy)}

/* Références */
.refs{display:grid;gap:16px}
.ref{border:1px solid var(--line);border-left:4px solid var(--navy);border-radius:var(--radius);padding:22px;background:#fff}
.ref-alt{border-left-color:var(--gold)}
.ref-who{font-size:.85rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:6px}
.ref h3{margin-bottom:12px}
.ref dl{margin:0;display:grid;gap:4px}
.ref dt{font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--navy);margin-top:6px}
.ref dd{margin:0;color:var(--muted)}

/* Rejoindre */
.join{display:grid;gap:18px;align-items:center;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:26px;border-top:3px solid var(--gold)}
.join p{color:var(--muted);margin:0;max-width:64ch}
.join h2{margin-bottom:.4em}

/* Approche */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:0 0 28px 64px}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:-2px;width:44px;height:44px;border:2px solid var(--navy);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--navy);background:#fff;font-size:.95rem}
.steps li::after{content:"";position:absolute;left:21px;top:46px;bottom:4px;width:2px;background:var(--line)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::after{display:none}
.steps h3{margin-bottom:4px;padding-top:8px}
.steps p{color:var(--muted);margin:0}


/* A propos */
.about{display:grid;gap:28px;align-items:start}
.about-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.about-card img{width:120px;margin-bottom:14px}
.about-card dl{margin:0;display:grid;gap:10px}
.about-card dt{font-size:.85rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.about-card dd{margin:0}

/* Bandeau contact */
.cta-band{background:var(--navy);color:#fff;padding:48px 0}
.cta-band h2{color:#fff}
.cta-band p{color:#d9e1ee;max-width:60ch}
.cta-band .wrap{display:grid;gap:18px}

/* Pages intérieures */
.page-head{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:40px 0 30px}
.page-head h1{margin-bottom:.3em}
.page-head p{color:var(--muted);margin:0;max-width:62ch}
.crumbs{font-size:.92rem;color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--muted)}
.prose{max-width:760px}
.prose h2{font-size:1.4rem;margin-top:1.8em}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.4em}
.prose address{font-style:normal}
.prose .meta{color:var(--muted);font-size:.95rem}
.info-table{width:100%;border-collapse:collapse;margin:0 0 1.2em}
.info-table th,.info-table td{text-align:left;vertical-align:top;padding:9px 0;border-bottom:1px solid var(--line)}
.info-table th{width:40%;font-weight:600;padding-right:14px;color:var(--navy)}

/* Contact */
.contact-grid{display:grid;gap:32px}
.form{display:grid;gap:18px}
.field{display:grid;gap:6px}
.field label,.field legend{font-weight:600;color:var(--ink)}
.field .opt{font-weight:400;color:var(--muted);font-size:.92rem}
.field input,.field select,.field textarea{font:inherit;color:var(--ink);width:100%;padding:.7em .8em;border:1px solid #b9c2d0;border-radius:var(--radius);background:#fff}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--navy);outline-offset:0;border-color:var(--navy)}
.field[hidden]{display:none}
.row-2{display:grid;gap:18px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.97rem}
.check input{margin-top:.35em;width:18px;height:18px;flex:none;accent-color:var(--navy)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.93rem;color:var(--muted);margin:0}
.form-status{display:none;padding:14px 16px;border-radius:var(--radius);border-left:4px solid var(--navy);background:var(--navy-soft)}
.form-status.show{display:block}
.form-status.err{border-left-color:#a33;background:#fbeeee}
.contact-aside{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--bg-alt);align-self:start}
.contact-aside h2{font-size:1.2rem}
.contact-aside address{font-style:normal;margin-bottom:1em}

/* Pied de page */
.site-footer{background:var(--navy-dark);color:#c5d0e2;padding:42px 0 26px;font-size:.95rem}
.site-footer a{color:#fff}
.site-footer a:hover{color:var(--gold)}
.foot-grid{display:grid;gap:26px}
.site-footer img{height:34px;width:auto;margin-bottom:12px}
.site-footer h2{font-family:var(--sans);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.site-footer address{font-style:normal}
.foot-legal{border-top:1px solid rgba(255,255,255,.15);margin-top:30px;padding-top:18px;font-size:.88rem;display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between}

/* Apparition douce (respecte prefers-reduced-motion) */
.js .rv{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .rv{opacity:1;transform:none;transition:none}}

/* Tablette */
@media (min-width:640px){
  .wrap{padding:0 28px}
  .cards{grid-template-columns:1fr 1fr}
  .formats-grid,.refs{grid-template-columns:1fr 1fr}
  .inline-cta{grid-template-columns:1fr auto}
  .row-2{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band .wrap{grid-template-columns:1fr auto;align-items:center}
}
/* Bureau */
@media (min-width:900px){
  body{font-size:1.09rem}
  .js .nav-toggle{display:none}
  .js .site-nav,.site-nav{display:block;position:static;padding:0;border:0;background:none}
  .js .site-nav ul{flex-direction:row;gap:28px}
  .js .site-nav li{border:0}
  .js .site-nav a{padding:6px 0}
  .js .site-nav a:hover,.js .site-nav a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--gold);color:var(--navy)}
  .site-nav .nav-cta a{border:2px solid var(--navy);border-radius:var(--radius);padding:7px 16px!important}
  .site-nav .nav-cta a:hover,.js .site-nav .nav-cta a:hover{background:var(--navy);color:#fff!important;box-shadow:none}
  .brand img{height:44px}
  .site-header .wrap{min-height:78px}
  .hero{padding:96px 0 92px}
  .hero .wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:64px;align-items:end}
  .hero-aside{margin-top:0;border-top:0;border-left:1px solid rgba(255,255,255,.2);padding:4px 0 4px 32px}
  .hero::after{right:6%;top:-70px;width:380px;height:380px;border-width:48px;border-radius:0 0 190px 190px}
  .section{padding:88px 0}
  .points{grid-template-columns:repeat(3,1fr);border-top:0;gap:40px}
  .point{border-bottom:0;border-top:2px solid var(--navy);padding-top:20px}
  .cards{grid-template-columns:repeat(3,1fr);gap:20px}
  .formats-grid{grid-template-columns:repeat(4,1fr);gap:20px}
  .exp-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .refs{grid-template-columns:repeat(3,1fr);gap:20px}
  .join{grid-template-columns:1fr auto;padding:36px 40px}
  .approach{display:grid;grid-template-columns:1fr 1.3fr;gap:64px}
  .about{grid-template-columns:1.6fr 1fr;gap:56px}
  .contact-grid{grid-template-columns:1.6fr 1fr;gap:56px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr}
  .page-head{padding:56px 0 40px}
}