/* ============================================================
   EastCairn Conseil — feuille de style
   Palette: calcaire pâle, pierre chaude, ardoise, bronze, bleu lumineux
   ============================================================ */

:root{
  --limestone:#f3efe7;
  --limestone-2:#e9e3d6;
  --paper:#fbf9f4;
  --slate:#1f2733;
  --slate-soft:#3a4453;
  --ink:#2a3340;
  --muted:#6b7280;
  --bronze:#c4a777;
  --bronze-deep:#a4854f;
  --lumen:#7fa8c9;
  --lumen-soft:#cfe0ee;
  --line:#d9d2c4;
  --ok:#3f7a5a;
  --shadow:0 18px 50px -28px rgba(31,39,51,.45);
  --r:14px;
  --maxw:1180px;
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Inter","Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--limestone);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.12;color:var(--slate);letter-spacing:.2px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--sans);
  text-transform:uppercase;
  letter-spacing:.28em;
  font-size:.72rem;
  font-weight:600;
  color:var(--bronze-deep);
  margin:0 0 14px;
}

/* luminous grid backdrop */
.grid-bg{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(127,168,201,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(127,168,201,.10) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 0%,transparent 75%);
          mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 0%,transparent 75%);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(243,239,231,.82);
  backdrop-filter:blur(12px);
  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;text-decoration:none}
.brand svg{width:34px;height:34px}
.brand b{font-family:var(--serif);font-size:1.32rem;color:var(--slate);font-weight:600;letter-spacing:.4px}
.brand span{display:block;font-size:.62rem;letter-spacing:.26em;text-transform:uppercase;color:var(--bronze-deep)}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{text-decoration:none;font-size:.92rem;color:var(--slate-soft);font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--bronze-deep)}
.btn{
  display:inline-block;cursor:pointer;border:none;font-family:var(--sans);
  font-weight:600;font-size:.92rem;padding:13px 26px;border-radius:999px;
  text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s;
}
.btn-primary{background:var(--slate);color:var(--paper)}
.btn-primary:hover{background:var(--slate-soft);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:var(--slate);border:1px solid var(--slate)}
.btn-ghost:hover{background:var(--slate);color:var(--paper)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--slate);margin:5px 0;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--limestone),var(--paper))}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;padding-top:84px;padding-bottom:84px}
.hero h1{font-size:clamp(2.2rem,5vw,4.3rem);margin:0 0 20px;overflow-wrap:break-word}
.hero h1 em{font-style:italic;color:var(--bronze-deep)}
.hero p.lead{font-size:1.16rem;color:var(--slate-soft);max-width:34ch;margin:0 0 30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{display:flex;gap:34px;margin-top:38px;border-top:1px solid var(--line);padding-top:24px}
.hero-meta div b{font-family:var(--serif);font-size:1.9rem;color:var(--slate);display:block}
.hero-meta div span{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}

/* predictive analytics card */
.hero-visual{position:relative}
.hero-img{border-radius:var(--r);box-shadow:var(--shadow);width:100%;height:380px;object-fit:cover;filter:saturate(.92) contrast(1.02)}
.analytic-card{
  position:absolute;left:-26px;bottom:-26px;width:248px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 20px;box-shadow:var(--shadow);
}
.analytic-card .ac-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.analytic-card .ac-head small{color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.14em}
.analytic-card .ac-head b{font-family:var(--serif);font-size:1.5rem;color:var(--ok)}
.spark{display:flex;align-items:flex-end;gap:4px;height:46px}
.spark i{flex:1;background:linear-gradient(180deg,var(--lumen),var(--lumen-soft));border-radius:3px 3px 0 0;display:block}
.ac-foot{margin-top:10px;font-size:.74rem;color:var(--slate-soft)}

/* ---------- Section base ---------- */
.section{padding:92px 0;position:relative}
.section.alt{background:var(--paper)}
.section-head{max-width:680px;margin-bottom:52px}
.section-head h2{font-size:clamp(2rem,3.6vw,3rem);margin:0 0 14px}
.section-head p{color:var(--slate-soft);font-size:1.06rem;margin:0}

/* ---------- Logos / trust strip ---------- */
.trust{background:var(--slate);color:var(--limestone-2);padding:30px 0}
.trust .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.trust p{margin:0;font-size:.86rem;letter-spacing:.04em;color:#b9c2cf}
.trust .marks{display:flex;gap:34px;flex-wrap:wrap}
.trust .marks span{font-family:var(--serif);font-size:1.2rem;color:#e7decb;opacity:.92}

/* ---------- Services ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:30px 28px;position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--bronze)}
.card .num{font-family:var(--serif);font-size:.95rem;color:var(--bronze-deep);letter-spacing:.1em}
.card h3{font-size:1.5rem;margin:8px 0 12px}
.card p{margin:0 0 16px;color:var(--slate-soft);font-size:.96rem}
.card ul{margin:0;padding-left:18px;color:var(--slate-soft);font-size:.9rem}
.card ul li{margin-bottom:6px}
.card .grid-corner{position:absolute;right:-30px;top:-30px;width:120px;height:120px;
  background-image:linear-gradient(var(--lumen) 1px,transparent 1px),linear-gradient(90deg,var(--lumen) 1px,transparent 1px);
  background-size:16px 16px;opacity:.12}

/* ---------- Approach / process ---------- */
.process{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.process-img{border-radius:var(--r);box-shadow:var(--shadow);height:440px;width:100%;object-fit:cover}
.steps{list-style:none;margin:0;padding:0}
.steps li{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.steps li:last-child{border-bottom:none}
.steps .st-no{font-family:var(--serif);font-size:1.7rem;color:var(--bronze-deep);border:1px solid var(--bronze);border-radius:50%;width:52px;height:52px;display:flex;align-items:center;justify-content:center}
.steps h4{margin:0 0 4px;font-size:1.2rem}
.steps p{margin:0;color:var(--slate-soft);font-size:.94rem}

/* ---------- Pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.plan{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:34px 30px;display:flex;flex-direction:column;position:relative;
}
.plan.featured{border:1.5px solid var(--slate);box-shadow:var(--shadow)}
.plan .tag{position:absolute;top:-13px;left:30px;background:var(--bronze);color:var(--slate);
  font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 14px;border-radius:999px}
.plan h3{font-size:1.6rem;margin:0 0 6px}
.plan .desc{color:var(--muted);font-size:.9rem;margin:0 0 18px;min-height:42px}
.plan .price{font-family:var(--serif);font-size:2.7rem;color:var(--slate);line-height:1}
.plan .price small{font-family:var(--sans);font-size:.9rem;color:var(--muted);font-weight:500}
.plan .price.quote{font-size:2rem}
.plan ul{list-style:none;margin:22px 0 26px;padding:0;flex:1}
.plan ul li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:.93rem;color:var(--slate-soft);display:flex;gap:10px}
.plan ul li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lumen);margin-top:8px;flex:none}
.pricing-note{margin-top:26px;font-size:.86rem;color:var(--muted);text-align:center}

/* ---------- Stats band ---------- */
.band{background:var(--slate);color:var(--limestone);position:relative;overflow:hidden}
.band .grid-bg{opacity:.5}
.band .wrap{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.band .stat b{font-family:var(--serif);font-size:2.9rem;display:block;color:var(--bronze)}
.band .stat span{font-size:.84rem;color:#c2cad6;text-transform:uppercase;letter-spacing:.1em}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:12px;background:var(--paper);margin-bottom:14px;overflow:hidden}
.faq summary{cursor:pointer;padding:20px 24px;font-family:var(--serif);font-size:1.22rem;color:var(--slate);list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--bronze-deep);font-size:1.5rem;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 24px 22px;margin:0;color:var(--slate-soft);font-size:.96rem}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:start}
.contact-info h2{font-size:clamp(2rem,3.4vw,2.8rem);margin:0 0 18px}
.contact-info p{color:var(--slate-soft);margin:0 0 26px}
.info-list{list-style:none;margin:0;padding:0}
.info-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-list svg{width:22px;height:22px;flex:none;stroke:var(--bronze-deep);margin-top:3px}
.info-list b{display:block;color:var(--slate)}
.info-list a{color:var(--slate-soft);text-decoration:none}
.info-list a:hover{color:var(--bronze-deep)}

.form{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:34px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.84rem;font-weight:600;color:var(--slate);margin-bottom:7px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--sans);font-size:.96rem;color:var(--ink);background:var(--limestone);transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--lumen);box-shadow:0 0 0 3px rgba(127,168,201,.22);background:#fff;
}
.field textarea{resize:vertical;min-height:120px}
.field.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--muted);margin-bottom:20px}
.consent input{margin-top:4px}
.consent a{color:var(--bronze-deep)}
.form .btn-primary{width:100%;text-align:center;padding:15px}
.form-msg{margin-top:14px;padding:12px 16px;border-radius:10px;font-size:.9rem;display:none}
.form-msg.show{display:block}
.form-msg.ok{background:#e7f0ea;color:var(--ok);border:1px solid #bcd8c6}
.form-msg.err{background:#f6e7e7;color:#9a3b3b;border:1px solid #e0c0c0}

/* ---------- Footer ---------- */
.site-footer{background:var(--slate);color:#c4ccd7;padding:62px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-grid .brand b{color:#f1ece0}
.footer-grid p{font-size:.9rem;max-width:34ch}
.footer-col h5{font-family:var(--sans);text-transform:uppercase;letter-spacing:.16em;font-size:.74rem;color:#8b94a1;margin:0 0 16px}
.footer-col a{display:block;text-decoration:none;color:#c4ccd7;font-size:.92rem;padding:6px 0;transition:color .2s}
.footer-col a:hover{color:var(--bronze)}
.footer-bottom{border-top:1px solid #34404f;padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.82rem;color:#8b94a1}

/* ---------- Cookie banner ---------- */
.cookie{
  position:fixed;left:18px;right:18px;bottom:18px;z-index:90;max-width:560px;margin:0 auto;
  background:var(--slate);color:#dfe4ea;border-radius:var(--r);padding:22px 24px;box-shadow:0 20px 60px -20px rgba(0,0,0,.5);
  transform:translateY(140%);transition:transform .4s ease;
}
.cookie.show{transform:translateY(0)}
.cookie p{margin:0 0 16px;font-size:.9rem;line-height:1.6}
.cookie a{color:var(--bronze)}
.cookie-actions{display:flex;gap:12px;flex-wrap:wrap}
.cookie .btn{padding:10px 20px;font-size:.86rem}
.cookie .btn-line{background:transparent;border:1px solid #5a6573;color:#dfe4ea}
.cookie .btn-line:hover{border-color:var(--bronze);color:var(--bronze)}

/* ---------- Legal pages ---------- */
.legal{padding:60px 0 90px}
.legal .wrap{max-width:840px}
.legal h1{font-size:clamp(2.2rem,4vw,3rem);margin:0 0 8px}
.legal .updated{color:var(--muted);font-size:.86rem;margin-bottom:40px}
.legal h2{font-size:1.5rem;margin:38px 0 12px}
.legal h3{font-size:1.16rem;margin:24px 0 8px}
.legal p,.legal li{color:var(--slate-soft);font-size:.98rem}
.legal ul{padding-left:22px}
.legal a{color:var(--bronze-deep)}
.back-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--bronze-deep);font-weight:600;font-size:.9rem;margin-bottom:30px}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .hero .wrap{grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:64px}
  .process{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .cards,.pricing{grid-template-columns:1fr}
  .band .wrap{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{
    position:absolute;top:74px;left:0;right:0;background:var(--limestone);
    flex-direction:column;gap:0;padding:10px 24px 22px;border-bottom:1px solid var(--line);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-links .btn{margin-top:12px;text-align:center}
  .nav-toggle{display:block}
}
@media (max-width:560px){
  .hero-meta{flex-wrap:wrap;gap:20px}
  .band .wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .field.row{grid-template-columns:1fr}
  .analytic-card{position:static;width:100%;margin-top:16px;left:0;bottom:0}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
:focus-visible{outline:2px solid var(--lumen);outline-offset:3px;border-radius:4px}