/* ============================================================
   Silverden — Conseil stratégique
   Palette argent platine / encre exécutive
   ============================================================ */

:root{
  --ink:#1A1D21;
  --ink-soft:#2C3137;
  --gray:#5A6068;
  --gray-light:#8A929B;
  --steel:#7A8694;
  --platinum:#C8CDD2;
  --platinum-pale:#E4E7EA;
  --paper:#FAFAFB;
  --paper-2:#F2F4F6;
  --line:#DCE0E4;
  --white:#FFFFFF;
  --shadow:0 1px 2px rgba(26,29,33,.04),0 8px 28px rgba(26,29,33,.06);
  --maxw:1180px;
  --serif:"Libre Caslon Text",Georgia,"Times New Roman",serif;
  --sans:"Inter","Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* eyebrow / labels */
.eyebrow{
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--steel);
  font-weight:600;
  display:flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--steel)}

h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;color:var(--ink);letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5vw,4rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h3{font-size:1.22rem}
p{color:var(--gray)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,250,251,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:1.28rem;font-weight:600;letter-spacing:-.01em}
.brand svg{width:34px;height:34px;border-radius:8px}
.brand small{font-family:var(--sans);font-size:.62rem;letter-spacing:.24em;color:var(--steel);text-transform:uppercase;font-weight:600;display:block;margin-top:-2px}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{font-size:.9rem;color:var(--gray);font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--sans);font-size:.9rem;font-weight:600;
  padding:12px 22px;border-radius:6px;cursor:pointer;border:1px solid transparent;
  transition:all .22s ease;
}
.btn-primary{background:var(--ink);color:var(--white)}
.btn-primary:hover{background:var(--ink-soft);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--steel);background:var(--white)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0}

/* ---------- Hero ---------- */
.hero{padding:90px 0 70px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero h1{margin:22px 0 24px}
.hero p.lead{font-size:1.12rem;max-width:30ch;color:var(--gray)}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-meta{display:flex;gap:40px;margin-top:46px;padding-top:30px;border-top:1px solid var(--line)}
.hero-meta div .num{font-family:var(--serif);font-size:1.7rem;color:var(--ink);font-weight:600}
.hero-meta div .lbl{font-size:.78rem;color:var(--gray-light);letter-spacing:.04em;margin-top:2px}
.hero-visual{position:relative}
.hero-visual img{border-radius:12px;box-shadow:var(--shadow);width:100%;height:520px;object-fit:cover;filter:grayscale(.18) contrast(1.02)}
.hero-tag{
  position:absolute;left:-26px;bottom:42px;
  background:var(--white);border:1px solid var(--line);border-radius:10px;
  padding:16px 20px;box-shadow:var(--shadow);max-width:230px;
}
.hero-tag .k{font-family:var(--serif);font-size:1.4rem;color:var(--ink)}
.hero-tag .v{font-size:.8rem;color:var(--gray)}

/* ---------- Trust strip ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.trust .container{display:flex;align-items:center;gap:40px;flex-wrap:wrap;padding-top:26px;padding-bottom:26px;justify-content:space-between}
.trust span{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gray-light);font-weight:600}

/* ---------- Section base ---------- */
section.block{padding:96px 0}
.section-head{max-width:620px;margin-bottom:54px}
.section-head h2{margin:18px 0 14px}
.section-head p{font-size:1.05rem}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--white)}
.service{
  padding:38px 32px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  transition:background .25s;position:relative;
}
.services-grid .service:nth-child(3n){border-right:none}
.services-grid .service:nth-last-child(-n+3){border-bottom:none}
.service:hover{background:var(--paper-2)}
.service .idx{font-family:var(--serif);font-size:.95rem;color:var(--steel)}
.service h3{margin:20px 0 12px}
.service p{font-size:.94rem}
.service .more{margin-top:18px;font-size:.84rem;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;opacity:0;transform:translateX(-6px);transition:.25s}
.service:hover .more{opacity:1;transform:translateX(0)}

/* ---------- Approach (split) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split img{border-radius:12px;height:480px;width:100%;object-fit:cover;box-shadow:var(--shadow);filter:grayscale(.2)}
.steps{list-style:none;margin-top:34px}
.steps li{display:flex;gap:22px;padding:22px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps .s-num{font-family:var(--serif);font-size:1.1rem;color:var(--steel);min-width:34px}
.steps h3{font-size:1.05rem;margin-bottom:5px}
.steps p{font-size:.92rem}

/* ---------- Stats band ---------- */
.band{background:var(--ink);color:var(--white)}
.band .container{padding-top:74px;padding-bottom:74px}
.band h2{color:var(--white)}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);margin-top:48px;border:1px solid rgba(255,255,255,.12)}
.band-grid div{background:var(--ink);padding:32px 24px}
.band-grid .n{font-family:var(--serif);font-size:2.3rem;font-weight:600;color:var(--platinum)}
.band-grid .l{font-size:.84rem;color:var(--gray-light);margin-top:6px}

/* ---------- Pricing ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.plan{
  background:var(--white);border:1px solid var(--line);border-radius:14px;padding:36px 30px;
  display:flex;flex-direction:column;transition:.25s;position:relative;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.plan.featured{border-color:var(--ink);box-shadow:var(--shadow)}
.plan .badge{position:absolute;top:-12px;left:30px;background:var(--ink);color:var(--white);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;padding:5px 12px;border-radius:20px;font-weight:600}
.plan .pname{font-family:var(--serif);font-size:1.35rem;margin-bottom:6px}
.plan .pdesc{font-size:.88rem;color:var(--gray-light);min-height:42px}
.plan .price{font-family:var(--serif);font-size:2.6rem;color:var(--ink);margin:18px 0 2px}
.plan .price span{font-family:var(--sans);font-size:.92rem;color:var(--gray-light);font-weight:500}
.plan .pnote{font-size:.78rem;color:var(--gray-light);margin-bottom:24px}
.plan ul{list-style:none;margin-bottom:28px;flex:1}
.plan ul li{font-size:.9rem;color:var(--gray);padding:9px 0;border-top:1px solid var(--line);display:flex;gap:10px}
.plan ul li::before{content:"";width:16px;height:16px;flex-shrink:0;margin-top:3px;background:var(--platinum-pale);border-radius:50%;position:relative}
.plan ul li svg{width:16px;height:16px;flex-shrink:0;margin-top:3px;color:var(--steel)}
.plan .btn{width:100%;justify-content:center}
.pricing-foot{text-align:center;margin-top:40px;font-size:.9rem;color:var(--gray-light)}

/* ---------- Sectors ---------- */
.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sector{border:1px solid var(--line);border-radius:10px;padding:24px;background:var(--white);transition:.2s}
.sector:hover{border-color:var(--steel)}
.sector .si{font-family:var(--serif);color:var(--steel);font-size:.9rem}
.sector h3{font-size:1rem;margin:12px 0 6px}
.sector p{font-size:.85rem}

/* ---------- Testimonial ---------- */
.quote-wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:54px;align-items:center}
.quote-wrap img{border-radius:12px;height:380px;width:100%;object-fit:cover;filter:grayscale(.25)}
.quote blockquote{font-family:var(--serif);font-size:1.55rem;line-height:1.4;color:var(--ink);font-weight:500}
.quote .by{margin-top:24px;font-size:.9rem;color:var(--gray)}
.quote .by strong{color:var(--ink)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px}
.contact-info .ci-row{padding:22px 0;border-top:1px solid var(--line);display:flex;gap:18px}
.contact-info .ci-row:last-child{border-bottom:1px solid var(--line)}
.contact-info .ci-row .lbl{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gray-light);font-weight:600;min-width:96px;padding-top:3px}
.contact-info .ci-row .val{font-size:.98rem;color:var(--ink)}
form .field{margin-bottom:20px}
form label{display:block;font-size:.82rem;font-weight:600;color:var(--ink-soft);margin-bottom:7px}
form input,form select,form textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:7px;
  font-family:var(--sans);font-size:.95rem;color:var(--ink);background:var(--white);transition:.2s;
}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--steel);box-shadow:0 0 0 3px rgba(122,134,148,.12)}
form textarea{resize:vertical;min-height:120px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-consent{display:flex;gap:10px;align-items:flex-start;font-size:.82rem;color:var(--gray)}
.form-consent input{width:auto;margin-top:3px}
.form-note{font-size:.82rem;color:var(--gray-light);margin-top:14px}
.form-success{background:#EEF3EE;border:1px solid #C9DCC9;color:#2F5234;padding:14px 18px;border-radius:8px;font-size:.9rem;margin-bottom:20px;display:none}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--platinum);padding:70px 0 34px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-grid h4{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gray-light);margin-bottom:18px;font-weight:600}
.footer-grid ul{list-style:none}
.footer-grid ul li{margin-bottom:11px}
.footer-grid ul li a{font-size:.9rem;color:var(--platinum);opacity:.82;transition:.2s}
.footer-grid ul li a:hover{opacity:1;color:var(--white)}
.footer-brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:1.3rem;color:var(--white);margin-bottom:16px}
.footer-brand svg{width:34px;height:34px;border-radius:8px}
.footer-brand-text p{font-size:.88rem;color:var(--gray-light);max-width:30ch;margin-top:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:26px;flex-wrap:wrap;gap:14px}
.footer-bottom p{font-size:.82rem;color:var(--gray-light)}
.footer-bottom .fb-links{display:flex;gap:22px;flex-wrap:wrap}
.footer-bottom .fb-links a{font-size:.82rem;color:var(--gray-light)}
.footer-bottom .fb-links a:hover{color:var(--white)}

/* ---------- Cookie banner ---------- */
.cookie{
  position:fixed;left:24px;right:24px;bottom:24px;z-index:90;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  box-shadow:0 12px 40px rgba(26,29,33,.16);
  padding:24px 28px;display:none;
  grid-template-columns:1fr auto;gap:28px;align-items:center;max-width:980px;margin:0 auto;
}
.cookie.show{display:grid}
.cookie h4{font-family:var(--serif);font-size:1.05rem;margin-bottom:6px}
.cookie p{font-size:.86rem;color:var(--gray)}
.cookie p a{color:var(--ink);text-decoration:underline}
.cookie-actions{display:flex;gap:12px;flex-shrink:0;flex-wrap:wrap}
.cookie-actions .btn{padding:11px 20px;font-size:.86rem}

/* ---------- Legal pages ---------- */
.legal-hero{padding:64px 0 40px;border-bottom:1px solid var(--line);background:var(--white)}
.legal-hero h1{font-size:clamp(2rem,4vw,3rem)}
.legal-body{padding:56px 0 90px;max-width:780px}
.legal-body h2{font-size:1.4rem;margin:40px 0 14px}
.legal-body h3{font-size:1.08rem;margin:26px 0 10px}
.legal-body p,.legal-body li{font-size:.96rem;color:var(--gray);margin-bottom:12px}
.legal-body ul{margin:0 0 16px 22px}
.legal-body .updated{font-size:.84rem;color:var(--gray-light);margin-top:8px}
.legal-body a{color:var(--ink);text-decoration:underline}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero-grid,.split,.quote-wrap,.contact-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .hero-visual img{height:360px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid .service:nth-child(3n){border-right:1px solid var(--line)}
  .services-grid .service:nth-child(2n){border-right:none}
  .band-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto}
  .sectors{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .container{padding:0 20px}
  .nav-links{
    display:none;position:absolute;top:74px;left:0;right:0;
    flex-direction:column;background:var(--white);border-bottom:1px solid var(--line);
    padding:18px 20px;gap:6px;align-items:stretch;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 0;border-bottom:1px solid var(--paper-2)}
  .nav-toggle{display:block}
  .nav-links .btn{margin-top:8px;justify-content:center}
  .services-grid{grid-template-columns:1fr}
  .services-grid .service{border-right:none!important}
  .band-grid,.sectors{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .hero-meta{gap:24px;flex-wrap:wrap}
  .hero-tag{left:0;bottom:14px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{justify-content:center}
  .trust .container{gap:14px 28px}
  .footer-grid{grid-template-columns:1fr}
  .cookie{left:14px;right:14px;bottom:14px;padding:20px;grid-template-columns:1fr}
  section.block{padding:64px 0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}