:root{
  color-scheme:light;
  --navy:#0B1F3D; --navy-deep:#061428; --gold:#C79A46; --gold-bright:#E0B15E; --gold-deep:#8A6420;
  --paper:#F5F6F4; --white:#FFFFFF; --line:#DDE2E7; --muted:#4A5A6E; --steel:#AEBBC8;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:76px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--paper);color:var(--navy);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul{margin:0}
ul{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.wrap{max-width:1120px;margin-inline:auto;padding-inline:20px}
h1,h2,h3{font-weight:800;letter-spacing:-.02em;text-wrap:balance}
h2{font-size:clamp(1.7rem,3.6vw,2.4rem);line-height:1.1}

/* boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:.85rem 1.45rem;border-radius:4px;border:1px solid transparent;font:600 1rem/1.2 var(--font);text-decoration:none;cursor:pointer;white-space:nowrap}
.btn-gold{background:var(--gold);color:var(--navy-deep)}
.btn-gold:hover{background:var(--gold-bright)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:var(--white)}
.btn-ghost:hover{border-color:var(--white)}
.btn-navy{background:var(--navy);color:var(--white)}
.btn-navy:hover{background:var(--navy-deep)}
.btn-sm{padding:.6rem 1.05rem;font-size:.95rem}

/* en-tête */
.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--white);border-bottom:3px solid var(--gold)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;padding-block:10px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;font-size:1.15rem;letter-spacing:.06em;line-height:1.05}
.brand img{mix-blend-mode:multiply}
.brand small{display:block;margin-top:3px;font-weight:600;font-size:.62rem;letter-spacing:.3em;color:var(--gold-deep)}
.site nav{display:flex;gap:28px;font-weight:600;font-size:.95rem}
.site nav a{text-decoration:none;color:var(--muted)}
.site nav a:hover{color:var(--navy)}
@media (max-width:760px){
  .bar{flex-wrap:wrap;padding-block:8px}
  .brand{gap:8px;font-size:1.02rem}
  .brand img{width:56px;height:auto}
  .site .btn-sm{padding:.5rem .85rem;font-size:.9rem}
  .site nav{order:3;width:100%;gap:22px;overflow-x:auto;white-space:nowrap;padding-bottom:2px}
}

/* hero */
.hero{background:var(--navy);color:var(--white)}
.hero-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,64px);align-items:center;padding-block:clamp(36px,6vw,80px)}
.eyebrow{margin-bottom:16px;color:var(--gold-bright);font-weight:700;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase}
.hero h1{font-size:clamp(2.2rem,4.8vw,3.6rem);line-height:1.04}
.lede{max-width:30rem;margin-top:18px;color:var(--steel);font-size:1.12rem}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero img{border-radius:6px;box-shadow:0 30px 60px -28px rgba(0,0,0,.7)}
@media (max-width:900px){.hero-grid{grid-template-columns:minmax(0,1fr)}}

/* sections */
.section{padding-block:clamp(52px,8vw,96px)}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 44px;margin-top:36px}
.grid li{padding-block:28px;border-top:1px solid var(--line)}
.grid svg{width:30px;height:30px;fill:none;stroke:var(--gold-deep);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.grid h3{margin-top:14px;font-size:1.12rem;letter-spacing:-.01em}
.grid p{margin-top:6px;color:var(--muted);font-size:.98rem}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.grid{grid-template-columns:minmax(0,1fr)}}
.wide{margin:clamp(28px,5vw,52px) 0 0}
.wide img{width:100%;border-radius:6px}

/* zone */
.zone{background:var(--navy-deep);color:var(--white)}
.zone-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,64px);align-items:center}
.zone p{margin-top:16px;max-width:26rem;color:var(--steel);font-size:1.08rem}
.zone img{border-radius:6px}
@media (max-width:860px){.zone-grid{grid-template-columns:minmax(0,1fr)}}

/* devis + contact */
.devis-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,64px);align-items:start}
.devis-info p{margin-top:14px;color:var(--muted)}
.contact{display:flex;flex-direction:column;gap:6px;margin-top:28px}
.phone{font-size:clamp(1.7rem,4.2vw,2.25rem);font-weight:800;letter-spacing:-.02em;text-decoration:none}
.phone:hover{color:var(--gold-deep)}
.mail{font-weight:600;overflow-wrap:anywhere;text-decoration-color:var(--gold);text-underline-offset:4px}
form{background:var(--white);border:1px solid var(--line);border-radius:6px;padding:clamp(20px,3vw,32px);box-shadow:0 18px 40px -28px rgba(11,31,61,.35)}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.full{grid-column:1/-1}
label{display:block;margin-bottom:5px;font-weight:600;font-size:.86rem}
label span{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;padding:.72rem .8rem;border:1px solid #C3CBD4;border-radius:4px;background:var(--white);color:var(--navy);font:inherit;font-size:1rem}
textarea{min-height:88px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
form .btn{width:100%;margin-top:20px;padding-block:1rem}
.note{margin-top:14px;color:var(--muted);font-size:.85rem}
.note a{color:var(--gold-deep)}
.status{min-height:1.4em;margin-top:10px;font-size:.92rem;color:var(--muted)}
.status a{color:var(--gold-deep);font-weight:600}
.status.ok{color:#2f7a3d;font-weight:600}
.status.err{color:#b23b3b}
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
@media (max-width:860px){.devis-grid{grid-template-columns:minmax(0,1fr)}}
@media (max-width:520px){.fields{grid-template-columns:minmax(0,1fr)}}

/* pied de page */
footer{background:var(--navy-deep);color:var(--steel);padding-block:36px calc(36px + env(safe-area-inset-bottom,0px));text-align:center;font-size:.95rem;line-height:1.9}
footer strong{color:var(--white);letter-spacing:.04em}
footer a{text-decoration:none}
footer a:hover{color:var(--white)}
footer .legal a{color:var(--gold-bright)}
footer .legal{margin-top:6px;font-size:.85rem}
footer .sep{margin-inline:10px;opacity:.5}

/* pages juridiques */
.prose{max-width:740px;padding-block:clamp(36px,6vw,72px)}
.prose h1{font-size:clamp(2rem,4.5vw,2.8rem);line-height:1.08;margin-bottom:8px}
.prose h2{margin-top:36px;font-size:1.2rem;letter-spacing:-.01em}
.prose p{margin-top:8px;color:var(--muted)}
.prose strong{color:var(--navy)}
.prose a{color:var(--gold-deep)}
.todo{background:#FFF1BF;color:#5B4300;padding:1px 6px;border-radius:3px}
.back{font-weight:600;font-size:.95rem;text-decoration:none;color:var(--muted)}
.back:hover{color:var(--navy)}