/* ============================================================
   Zephiron Conseil — Swiss precision executive interface
   ============================================================ */
:root{
  --ink:#1A1D21;
  --ink-soft:#4A5158;
  --surface:#F2F3F4;
  --surface-2:#FFFFFF;
  --line:#D8DBDE;
  --steel:#3A4B5C;
  --steel-light:#6E8CA0;
  --shell-max:1200px;
  --pad:clamp(20px,5vw,64px);
  --r:2px;
  --fs-mono:11px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  color:var(--ink);
  background:var(--surface);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
[hidden]{display:none!important}
a{color:inherit;text-decoration:none}

.grid-shell{
  max-width:var(--shell-max);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
  width:100%;
}
.coord{
  font-family:'IBM Plex Mono',monospace;
  font-size:var(--fs-mono);
  letter-spacing:.06em;
  color:var(--steel-light);
  text-transform:uppercase;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.84rem;font-weight:500;letter-spacing:.02em;
  padding:13px 24px;border:1px solid transparent;border-radius:var(--r);
  cursor:pointer;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  font-family:inherit;line-height:1;
}
.btn-solid{background:var(--ink);color:var(--surface);border-color:var(--ink)}
.btn-solid:hover{background:var(--steel);border-color:var(--steel)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:var(--surface-2)}
:focus-visible{outline:2px solid var(--steel);outline-offset:2px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(242,243,244,.85);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-text{font-weight:600;font-size:1.05rem;letter-spacing:-.01em}
.brand-sub{color:var(--steel-light);font-weight:400;margin-left:3px}
.main-nav{display:flex;gap:28px;margin-left:auto}
.main-nav a{font-size:.88rem;color:var(--ink-soft);position:relative;padding:4px 0;transition:color .2s}
.main-nav a:hover{color:var(--ink)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--ink);transition:width .25s var(--ease)}
.main-nav a:hover::after{width:100%}
.nav-cta{flex-shrink:0}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:22px;height:2px;background:var(--ink);transition:.25s var(--ease)}
.mobile-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);background:var(--surface-2)}
.mobile-nav a{padding:16px var(--pad);border-bottom:1px solid var(--line);font-size:.95rem}

/* ---------- Hero ---------- */
.hero{padding:clamp(48px,8vw,96px) 0;border-bottom:1px solid var(--line);background:var(--surface)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(32px,6vw,72px);align-items:center}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-size:var(--fs-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:24px}
.hero h1{
  font-size:clamp(2rem,4.6vw,3.5rem);
  line-height:1.06;font-weight:600;letter-spacing:-.025em;
  margin-bottom:24px;max-width:14ch;
}
.lede{font-size:clamp(1rem,1.4vw,1.15rem);color:var(--ink-soft);max-width:48ch;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:clamp(20px,4vw,48px);border-top:1px solid var(--line);padding-top:28px;flex-wrap:wrap}
.hero-stats dt{font-family:'IBM Plex Mono',monospace;font-size:var(--fs-mono);text-transform:uppercase;letter-spacing:.05em;color:var(--steel-light);margin-bottom:6px}
.hero-stats dd{font-size:1.7rem;font-weight:600;letter-spacing:-.02em}
.hero-figure{position:relative}
.hero-figure img{border:1px solid var(--line);border-radius:var(--r);aspect-ratio:9/11;object-fit:cover;filter:grayscale(.18) contrast(1.02)}
.hero-figure figcaption{display:flex;gap:10px;align-items:center;margin-top:12px;font-family:'IBM Plex Mono',monospace;font-size:var(--fs-mono);color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}

/* ---------- Trust strip ---------- */
.trust{background:var(--ink);color:var(--surface);padding:28px 0}
.trust .grid-shell{display:flex;align-items:center;gap:clamp(20px,4vw,56px);flex-wrap:wrap}
.trust-label{font-size:.82rem;color:var(--steel-light);font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.05em}
.trust-list{display:flex;gap:clamp(18px,3vw,40px);list-style:none;flex-wrap:wrap;margin-left:auto}
.trust-list li{font-size:.88rem;display:flex;gap:8px;align-items:center}
.trust-list .coord{color:var(--steel-light)}

/* ---------- Generic block ---------- */
.block{padding:clamp(56px,9vw,112px) 0;border-bottom:1px solid var(--line)}
.block-alt{background:var(--surface-2)}
.block-head{max-width:62ch;margin-bottom:clamp(40px,6vw,64px)}
.section-index{font-family:'IBM Plex Mono',monospace;font-size:var(--fs-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--steel);margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line);display:inline-block}
.block h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:600;letter-spacing:-.02em;line-height:1.12;margin-bottom:18px}
.block-intro{color:var(--ink-soft);font-size:1.02rem;max-width:54ch}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.card{background:var(--surface-2);padding:32px 28px;display:flex;flex-direction:column;gap:14px;transition:background .25s var(--ease)}
.card:hover{background:var(--surface)}
.card-no{display:block}
.card h3{font-size:1.12rem;font-weight:600;letter-spacing:-.01em}
.card p{font-size:.92rem;color:var(--ink-soft);flex:1}
.card-link{font-size:.84rem;font-weight:500;color:var(--steel);transition:color .2s}
.card-link:hover{color:var(--ink)}

/* ---------- Method ---------- */
.method-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(36px,6vw,80px);align-items:start}
.method-figure{margin-top:32px}
.method-figure img{border:1px solid var(--line);border-radius:var(--r);aspect-ratio:10/7;object-fit:cover;filter:grayscale(.2) contrast(1.02)}
.steps{list-style:none;counter-reset:none;display:flex;flex-direction:column}
.steps li{display:flex;gap:24px;padding:28px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.step-no{flex-shrink:0;font-size:13px;padding-top:4px}
.steps h3{font-size:1.18rem;font-weight:600;margin-bottom:8px;letter-spacing:-.01em}
.steps p{font-size:.94rem;color:var(--ink-soft)}

/* ---------- Pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{position:relative;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:34px 28px;display:flex;flex-direction:column;transition:border-color .25s var(--ease),transform .25s var(--ease)}
.plan:hover{border-color:var(--ink-soft)}
.plan-featured{border-color:var(--ink);background:var(--ink);color:var(--surface)}
.plan-featured:hover{border-color:var(--ink)}
.plan-featured .plan-desc,.plan-featured .plan-feats li{color:#B9C0C7}
.plan-tag{position:absolute;top:-11px;left:28px;background:var(--steel);color:#fff;font-size:10px;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.08em;padding:5px 10px;border-radius:var(--r)}
.plan-name{font-family:'IBM Plex Mono',monospace;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--steel-light);margin-bottom:16px}
.plan-price{font-size:2.1rem;font-weight:600;letter-spacing:-.025em;margin-bottom:10px}
.plan-price span{font-size:.9rem;font-weight:400;color:var(--ink-soft);margin-left:4px}
.plan-featured .plan-price span{color:#B9C0C7}
.plan-desc{font-size:.9rem;color:var(--ink-soft);margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.plan-featured .plan-desc{border-color:#343a40}
.plan-feats{list-style:none;display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1}
.plan-feats li{font-size:.9rem;color:var(--ink-soft);padding-left:20px;position:relative}
.plan-feats li::before{content:"—";position:absolute;left:0;color:var(--steel-light)}
.plan-cta{width:100%}
.pricing-note{margin-top:28px;font-size:.88rem;color:var(--ink-soft);display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.pricing-note a{color:var(--steel);text-decoration:underline;text-underline-offset:2px}

/* ---------- Quote ---------- */
.quote-block{padding:clamp(56px,9vw,104px) 0;border-bottom:1px solid var(--line)}
.quote-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:clamp(36px,6vw,72px);align-items:center}
.quote-block blockquote{font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:500;letter-spacing:-.015em;line-height:1.25;margin-bottom:24px}
.quote-block figcaption{font-size:.9rem;color:var(--ink-soft);display:flex;gap:8px}
.quote-metrics{display:flex;flex-direction:column;gap:28px;border-left:1px solid var(--line);padding-left:32px}
.metric{font-size:2.2rem;font-weight:600;letter-spacing:-.02em;display:block;margin-bottom:4px}
.quote-metrics p{font-size:.86rem;color:var(--ink-soft)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(40px,6vw,80px);align-items:start}
.contact-list{list-style:none;margin-top:36px;display:flex;flex-direction:column;gap:20px}
.contact-list li{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);padding-top:16px}
.contact-k{font-size:11px}
.contact-v{font-size:.96rem}
.contact-v a{color:var(--steel);text-decoration:underline;text-underline-offset:2px}
.contact-form{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:clamp(28px,4vw,40px);display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:7px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field label{font-size:.82rem;font-weight:500;color:var(--ink-soft)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:.94rem;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:12px 14px;transition:border-color .2s var(--ease);width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--steel)}
.field textarea{resize:vertical;min-height:110px}
.field-error{font-size:.78rem;color:#A4332B;min-height:0}
.field-error.show{min-height:1em}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.84rem;color:var(--ink-soft);cursor:pointer}
.consent input{margin-top:3px;accent-color:var(--ink);flex-shrink:0;width:16px;height:16px}
.consent a{color:var(--steel);text-decoration:underline;text-underline-offset:2px}
.form-submit{margin-top:4px}
.form-status{font-size:.9rem;padding:14px 16px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line)}
.form-status.ok{border-color:var(--steel);color:var(--steel)}
.form-status.err{border-color:#A4332B;color:#A4332B}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#B9C0C7;padding-top:clamp(48px,7vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid #2a2f35}
.footer-brand .brand-text{color:var(--surface)}
.footer-brand .brand-sub{color:var(--steel-light)}
.footer-brand p{font-size:.9rem;margin-top:14px;max-width:34ch}
.footer-coord{margin-top:18px;display:block}
.footer-h{font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--steel-light);margin-bottom:16px}
.footer-col{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:.9rem;transition:color .2s}
.footer-col a:hover{color:var(--surface)}
.footer-base{display:flex;justify-content:space-between;align-items:center;padding-top:24px;padding-bottom:24px;flex-wrap:wrap;gap:12px}
.footer-base p{font-size:.82rem;color:#7c848c}
.cookie-reopen{background:none;border:none;color:#7c848c;font-size:.82rem;cursor:pointer;font-family:inherit;text-decoration:underline;text-underline-offset:2px}
.cookie-reopen:hover{color:var(--surface)}

/* ---------- Cookie banner ---------- */
.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:80;background:var(--surface-2);border:1px solid var(--ink);border-radius:var(--r);box-shadow:0 18px 50px rgba(26,29,33,.18);max-width:760px;margin:0 auto;animation:slideUp .4s var(--ease)}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.cookie-inner{display:flex;gap:24px;align-items:center;padding:22px 26px;flex-wrap:wrap}
.cookie-title{font-weight:600;font-size:.95rem;margin-bottom:6px}
.cookie-text p{font-size:.86rem;color:var(--ink-soft)}
.cookie-text a{color:var(--steel);text-decoration:underline;text-underline-offset:2px}
.cookie-actions{display:flex;gap:10px;margin-left:auto;flex-wrap:wrap}
.cookie-actions .btn{padding:10px 18px;font-size:.82rem}
.cookie-prefs{border-top:1px solid var(--line);padding:20px 26px;display:flex;flex-direction:column;gap:14px}
.pref-row{display:flex;justify-content:space-between;align-items:center;font-size:.88rem;gap:16px}
.pref-row span strong{font-weight:600}
.pref-row input{accent-color:var(--ink);width:18px;height:18px}
.cookie-prefs .btn{align-self:flex-start}

/* ---------- Legal pages ---------- */
.legal-main{padding:clamp(48px,7vw,88px) 0 80px}
.legal-head{max-width:62ch;margin-bottom:48px;padding-bottom:32px;border-bottom:1px solid var(--line)}
.legal-head h1{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:600;letter-spacing:-.02em;margin-bottom:14px;line-height:1.1}
.legal-meta{font-family:'IBM Plex Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--steel-light)}
.legal-body{max-width:72ch}
.legal-body h2{font-size:1.25rem;font-weight:600;margin:38px 0 14px;letter-spacing:-.01em}
.legal-body h2:first-child{margin-top:0}
.legal-body p,.legal-body li{font-size:.96rem;color:var(--ink-soft);margin-bottom:14px}
.legal-body ul{padding-left:22px;margin-bottom:14px}
.legal-body li{margin-bottom:8px}
.legal-body a{color:var(--steel);text-decoration:underline;text-underline-offset:2px}
.legal-body strong{color:var(--ink);font-weight:600}
.back-link{display:inline-flex;gap:8px;font-size:.86rem;color:var(--steel);margin-bottom:32px;transition:color .2s}
.back-link:hover{color:var(--ink)}

/* ---------- Responsive ---------- */
@media (max-width:1040px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure{max-width:480px}
  .method-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr;gap:36px}
  .quote-metrics{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:28px;flex-direction:row}
}
@media (max-width:860px){
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .pricing{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
  .trust-list{margin-left:0;width:100%}
}
@media (max-width:560px){
  .cards{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cookie-actions{margin-left:0;width:100%}
  .cookie-actions .btn{flex:1}
  .quote-metrics{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}