:root{--color-bg:#0f1115;--color-surface:#171a21;--color-surface-alt:#1e222c;--color-border:#2a2f3a;--color-text:#e7e9ee;--color-text-muted:#a4abb8;--color-accent:#4f8cff;--color-accent-hover:#6fa0ff;--color-accent-contrast:#fff;--color-success-bg:#143024;--color-success-border:#2f7d54;--color-error-bg:#35171a;--color-error-border:#a5484f;--radius:12px;--radius-sm:8px;--maxw:1080px;--space:1rem;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.6}h1,h2,h3{margin:0 0 .6em;font-weight:700;line-height:1.2}h1{letter-spacing:-.02em;font-size:clamp(1.9rem,6vw,3rem)}h2{letter-spacing:-.01em;font-size:clamp(1.4rem,4vw,2rem)}h3{font-size:1.2rem}p{margin:0 0 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1.5rem 1.35rem 4.2rem;position:relative}.step:before{counter-increment:step;content:counter(step);background:var(--color-accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:2rem;height:2rem;font-weight:700;display:flex;position:absolute;top:1.25rem;left:1.25rem}.step h3{margin:0 0 .3rem}.step p{color:var(--color-text-muted);margin:0}.trust{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.trust .item{background:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem}.trust .item strong{margin-bottom:.3rem;display:block}.trust .item p{color:var(--color-text-muted);margin:0;font-size:.97rem}.callout{background:var(--color-surface);border:1px solid var(--color-border);border-left:4px solid var(--color-accent);border-radius:var(--radius);padding:1.5rem}.form{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);max-width:680px;padding:1.75rem}.field{margin-bottom:1.25rem}.field label{margin-bottom:.4rem;font-size:.97rem;font-weight:600;display:block}.field .req{color:var(--color-accent)}.field input[type=text],.field input[type=email],.field textarea,.field select{background:var(--color-bg);width:100%;color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.7rem .85rem;font-family:inherit;font-size:1rem}.field textarea{resize:vertical;min-height:120px}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--color-accent);outline:none;box-shadow:0 0 0 2px #4f8cff40}.field .hint{color:var(--color-text-muted);margin-top:.35rem;font-size:.85rem}.field-error{color:#ff8a8a;margin-top:.3rem;font-size:.85rem;display:none}.field.invalid .field-error{display:block}.field.invalid input,.field.invalid textarea,.field.invalid 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a{color:var(--color-text-muted)}.footer-links{flex-wrap:wrap;align-items:center;gap:1.25rem;display:flex}.footer-brand{align-items:center;gap:.75rem;display:flex}.section-alt{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}.ref-preview{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.ref-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem}.ref-branche{margin-bottom:.5rem;font-size:.97rem;font-weight:700;display:block}.ref-item p{margin:0;font-size:.93rem}@media (width<=820px){.ref-preview,.grid-3,.grid-2,.trust,.split{grid-template-columns:1fr}section{padding:2.5rem 0}.hero{padding:3rem 0 2.5rem}body{font-size:16px}}