/* ==========================================================================
   DDS — Dubos Demange Solutions · feuille de style « Vitrine » (10/2026)
   Bandes bleu nuit / blanc en alternance, or pour les actions, Poppins + Karla,
   captures dans des cadres d'ordinateur portable dessinés en CSS.
   ========================================================================== */
:root{
  --navy:#17252e; --navy-2:#1e3038; --navy-3:#0f1a20; --gold:#c2a15b; --gold-2:#a98843; --gold-soft:#f3ecdb;
  --ink:#1f242a; --mute:#5f6a73; --mute-d:#aab4bb; --line:#e4e7ea; --line-d:rgba(255,255,255,.12);
  --g:#2bb3ad; --k:#9b86e6; --danger:#c0392b; --w:1180px;
}
*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{ margin:0; font-family:'Karla',system-ui,sans-serif; font-size:17px; line-height:1.6; color:var(--ink); background:#fff; }
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
p a, li a, dd a{ color:var(--gold-2); text-decoration:underline; text-underline-offset:3px; }
.dark p a, .dark li a, .dark dd a{ color:var(--gold); }
:focus-visible{ outline:2px solid var(--gold); outline-offset:3px; }
h1,h2,h3,h4{ font-family:'Poppins',sans-serif; letter-spacing:-.01em; line-height:1.15; margin:0; text-wrap:balance; }
.wrap{ max-width:var(--w); margin:0 auto; padding:0 32px; }
.kicker{ font:600 12px/1 'Poppins',sans-serif; letter-spacing:.22em; text-transform:uppercase; color:var(--gold); margin:0 0 16px; display:block; }
.kicker.g{ color:var(--g); } .kicker.k{ color:var(--k); }
.sr{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); }

/* ---- boutons ---- */
.btn{ display:inline-flex; align-items:center; gap:10px; background:var(--gold); color:#15191c; padding:15px 26px; font:600 12.5px/1 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; border-radius:3px; border:1px solid var(--gold); cursor:pointer; transition:background .15s, color .15s; }
.btn:hover{ background:var(--gold-2); border-color:var(--gold-2); }
.btn svg{ width:16px; height:16px; stroke:currentColor; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.btn.ghost{ background:transparent; color:var(--gold); }
.btn.ghost:hover{ background:var(--gold); color:#15191c; }
.btn.dark{ background:var(--navy); border-color:var(--navy); color:#fff; }
.btn.dark:hover{ background:var(--navy-3); border-color:var(--navy-3); }
.btn.wide{ width:100%; justify-content:center; }
.btn[disabled]{ opacity:.6; cursor:wait; }
.actions{ display:flex; gap:12px; flex-wrap:wrap; align-items:center; }
.more{ font:600 12px 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; color:var(--navy); border-bottom:2px solid var(--gold); padding-bottom:3px; }
.dark .more{ color:#fff; }

/* ---- en-tête ---- */
.site{ background:var(--navy-3); color:#fff; position:sticky; top:0; z-index:30; }
.site .wrap{ display:flex; align-items:center; gap:36px; height:72px; }
.logo{ display:flex; align-items:center; gap:10px; font:700 20px 'Poppins',sans-serif; letter-spacing:.04em; color:#fff; }
.logo img{ width:26px; height:26px; filter:invert(1) brightness(1.4); }
.logo b{ color:var(--gold); }
.logo small{ display:block; font:500 9.5px/1 'Poppins',sans-serif; letter-spacing:.22em; text-transform:uppercase; color:var(--mute-d); margin-top:3px; }
.menu{ margin:0 0 0 auto; padding:0; list-style:none; display:flex; gap:26px; font:500 12.5px 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; }
.menu li{ white-space:nowrap; }
.menu a, footer .links a, .logo{ text-decoration:none; }
.logo small{ white-space:nowrap; }
.only-mobile{ display:none; }
.menu a{ color:#fff; opacity:.85; padding:4px 0; }
.menu a:hover{ color:var(--gold); opacity:1; }
.menu a[aria-current="page"]{ color:var(--gold); opacity:1; box-shadow:0 2px 0 var(--gold); }
.site .cta{ padding:12px 20px; margin-left:8px; }
.burger{ display:none; margin-left:auto; background:none; border:1px solid rgba(255,255,255,.3); border-radius:3px; width:42px; height:42px; cursor:pointer; color:#fff; }
.burger svg{ width:22px; height:22px; margin:0 auto; stroke:currentColor; fill:none; stroke-width:1.8; stroke-linecap:round; }

/* ---- bandes ---- */
.band{ padding:104px 0; overflow:hidden; }
.band.dark{ background:var(--navy); color:#fff; }
.band.dark p{ color:var(--mute-d); }
.band.light p{ color:var(--mute); }
.band.gold{ background:var(--gold); color:#15191c; }
.band.gold p{ color:#3d3728; }
.band.tight{ padding:72px 0; }
.split{ display:grid; grid-template-columns:1fr 1fr; gap:72px; align-items:center; }
.split.flip > :first-child{ order:2; }
.split h2, .head h2{ font-size:clamp(30px,3.6vw,42px); font-weight:600; margin:0 0 18px; }
.split p{ margin:0 0 22px; max-width:50ch; text-wrap:pretty; }
.head{ max-width:70ch; margin:0 0 44px; }
.head p{ margin:0; font-size:18px; text-wrap:pretty; }
.head.center{ margin:0 auto 44px; text-align:center; }
.checks{ list-style:none; margin:0 0 28px; padding:0; display:grid; gap:10px; }
.checks li{ padding-left:34px; position:relative; font-weight:500; }
.checks li::before{ content:""; position:absolute; left:0; top:3px; width:20px; height:20px; border-radius:50%; border:2px solid var(--gold); background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c2a15b' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/11px no-repeat; }
.checks.two{ grid-template-columns:1fr 1fr; gap:10px 32px; }
.meta{ font-size:15px; color:var(--mute); margin:0; }
.dark .meta{ color:var(--mute-d); }
.meta b{ font-weight:700; color:inherit; }
.notice{ border-left:3px solid var(--gold); padding:6px 0 6px 18px; font-size:16px; max-width:70ch; margin:36px 0 0; }
.notice b{ font-weight:700; }

/* ---- héros ---- */
.hero{ background:var(--navy); color:#fff; position:relative; overflow:hidden; }
.hero::before{ content:""; position:absolute; inset:0; background:linear-gradient(112deg, transparent 0 58%, rgba(255,255,255,.05) 58%); }
.hero .wrap{ position:relative; display:grid; grid-template-columns:5fr 7fr; gap:48px; align-items:center; min-height:620px; padding-top:40px; padding-bottom:40px; }
.hero .panel{ background:var(--gold); color:#15191c; padding:56px 48px 52px; position:relative; }
.hero .panel::before{ content:""; position:absolute; left:-100vw; top:0; bottom:0; width:100vw; background:var(--gold); }
.hero h1{ font-size:clamp(36px,4.2vw,52px); font-weight:700; margin:0 0 18px; line-height:1.1; }
.hero .panel p{ font-size:18px; margin:0 0 28px; color:#2d2a22; max-width:40ch; }
.page-hero{ background:var(--navy); color:#fff; position:relative; overflow:hidden; }
.page-hero::before{ content:""; position:absolute; inset:0; background:linear-gradient(112deg, transparent 0 62%, rgba(255,255,255,.05) 62%); }
.page-hero .wrap{ position:relative; display:grid; grid-template-columns:6fr 6fr; gap:56px; align-items:center; padding-top:72px; padding-bottom:72px; }
.page-hero.solo .wrap{ grid-template-columns:1fr; padding-top:72px; padding-bottom:64px; }
.page-hero h1{ font-size:clamp(34px,4.4vw,54px); font-weight:700; margin:0 0 18px; line-height:1.1; max-width:20ch; }
.page-hero .lead{ font-size:19px; color:var(--mute-d); margin:0 0 28px; max-width:56ch; text-wrap:pretty; }
.page-hero .meta{ margin-top:18px; }

/* ---- cadre d'ordinateur ---- */
.laptop{ width:100%; }
.laptop .lid{ background:#2a2f36; border:2px solid #3a414a; border-bottom:0; border-radius:16px 16px 0 0; padding:14px 14px 0; }
.laptop .lid img{ border-radius:6px 6px 0 0; }
.laptop .base{ height:18px; background:linear-gradient(#3a414a,#20252b); border-radius:0 0 16px 16px; margin:0 -36px; position:relative; }
.laptop .base::after{ content:""; position:absolute; left:50%; top:0; width:120px; height:6px; margin-left:-60px; background:#161a1f; border-radius:0 0 6px 6px; }
.light .laptop .lid{ border-color:#cfd5db; background:#dfe4e8; }
.light .laptop .base{ background:linear-gradient(#e6eaee,#c9d0d6); }
.light .laptop .base::after{ background:#b6bec6; }
.laptop figcaption{ font:600 12px 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; color:var(--mute); text-align:center; margin-top:22px; }
.dark .laptop figcaption{ color:var(--mute-d); }

/* ---- argument (accueil) ---- */
.arg .wrap{ display:grid; grid-template-columns:5fr 7fr; gap:64px; align-items:center; }
.arg h2{ font-size:clamp(34px,4.4vw,56px); font-weight:700; color:var(--navy); }
.arg h2 span{ color:var(--gold); }
.arg p{ margin:0 0 24px; font-size:18px; }

/* ---- colonnes « services » ---- */
.services .wrap{ display:grid; grid-template-columns:120px 1fr; gap:40px; align-items:stretch; }
.services .label{ border-left:2px solid var(--gold); padding-left:18px; font:600 13px 'Poppins',sans-serif; letter-spacing:.2em; text-transform:uppercase; color:#fff; align-self:center; }
.cols{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); border-left:1px solid var(--line-d); }
.cols article{ padding:36px 28px 40px; border-right:1px solid var(--line-d); display:flex; flex-direction:column; gap:14px; min-height:300px; background:linear-gradient(180deg, rgba(255,255,255,.03), transparent); }
.cols .kicker{ margin:0; }
.cols h3{ font-size:22px; font-weight:600; text-transform:uppercase; line-height:1.2; letter-spacing:.02em; color:#fff; }
.cols p{ margin:0; font-size:15px; color:var(--mute-d); flex:1; }
.cols .btn{ align-self:flex-start; padding:11px 18px; font-size:11px; }

/* ---- cartes ---- */
.cards{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
.cards.two{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.cards.four{ grid-template-columns:repeat(4,minmax(0,1fr)); }
.cards article{ border:1px solid var(--line); border-top:3px solid var(--gold); padding:30px 28px; background:#fff; display:flex; flex-direction:column; gap:10px; }
.dark .cards article{ background:rgba(255,255,255,.04); border-color:var(--line-d); border-top-color:var(--gold); }
.cards .num{ font:700 22px/1 'Poppins',sans-serif; color:var(--gold); }
.cards h3{ font-size:19px; font-weight:600; }
.cards p{ margin:0; font-size:15px; }
.cards .checks{ margin:6px 0 0; gap:8px; font-size:15px; }
.cards .checks li{ padding-left:28px; font-weight:400; }
.cards .checks li::before{ width:16px; height:16px; top:4px; background-size:9px; }
.cards .more{ margin-top:auto; padding-top:14px; align-self:flex-start; }
.cards .kicker{ margin:0; }

/* ---- étapes, barres ---- */
.steps{ display:grid; grid-template-columns:1fr 1fr; gap:26px 48px; counter-reset:s; margin:0; padding:0; list-style:none; }
.steps li{ counter-increment:s; display:grid; grid-template-columns:52px 1fr; gap:14px; align-items:start; }
.steps li::before{ content:counter(s,decimal-leading-zero); font:700 26px/1 'Poppins',sans-serif; color:var(--gold); }
.steps b{ display:block; font:600 17px 'Poppins',sans-serif; margin:4px 0 4px; }
.dark .steps b{ color:#fff; }
.steps p{ margin:0; font-size:15px; }
.steps.long{ gap:40px 56px; }
.steps.long li{ grid-template-columns:64px 1fr; }
.steps.long li::before{ font-size:40px; }
.steps.long b{ font-size:21px; margin-top:8px; }
.steps.long ul{ margin:12px 0 0; padding-left:18px; font-size:15px; color:var(--mute); columns:2; column-gap:24px; }
.steps.long ul li{ display:list-item; padding:0; margin:2px 0; break-inside:avoid; counter-increment:none; }
.steps.long ul li::before{ content:none; }
.bars{ display:grid; gap:18px; margin:28px 0 32px; }
.bars div{ font:600 12px 'Poppins',sans-serif; letter-spacing:.12em; text-transform:uppercase; color:var(--mute-d); }
.bars i{ display:block; height:6px; background:rgba(255,255,255,.12); border-radius:3px; margin-top:8px; position:relative; }
.bars i::after{ content:""; position:absolute; left:0; top:0; bottom:0; border-radius:3px; background:var(--gold); width:var(--w); }
.light .bars div{ color:var(--mute); }
.light .bars i{ background:rgba(23,37,46,.1); }

/* ---- société, légal ---- */
.names{ display:grid; gap:14px; margin:0 0 28px; }
.names div{ border-left:3px solid var(--gold); padding-left:16px; }
.names b{ display:block; font:600 18px 'Poppins',sans-serif; }
.names span{ color:var(--mute); font-size:15px; }
.dark .names span{ color:var(--mute-d); }
.kv{ display:grid; grid-template-columns:minmax(0,max-content) minmax(0,1fr); gap:10px 28px; margin:0; font-size:16px; }
.kv dt{ font:600 11px/1.6 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; color:var(--gold); padding-top:4px; }
.kv dd{ margin:0; overflow-wrap:anywhere; }
.prose{ max-width:820px; }
.prose article{ border-top:1px solid var(--line); padding:28px 0 12px; margin-bottom:24px; }
.prose article:first-child{ border-top:0; padding-top:0; }
.prose h2{ font-size:24px; font-weight:600; margin:0 0 16px; }
.prose h3{ font-size:17px; font-weight:600; margin:16px 0 6px; }
.prose p{ margin:0 0 10px; } .prose p:last-child{ margin:0; }
.prose ul{ margin:0 0 12px; padding-left:20px; } .prose li{ margin:4px 0; }
.updated{ color:var(--mute); font-size:14px; }

/* ---- accordéon ---- */
.acc{ max-width:860px; border-top:1px solid var(--line); }
.dark .acc{ border-top-color:var(--line-d); }
.acc details{ border-bottom:1px solid var(--line); }
.dark .acc details{ border-bottom-color:var(--line-d); }
.acc summary{ list-style:none; cursor:pointer; padding:20px 44px 20px 0; font:600 18px/1.3 'Poppins',sans-serif; position:relative; }
.acc summary::-webkit-details-marker{ display:none; }
.acc summary::after{ content:"+"; position:absolute; right:4px; top:14px; font:300 30px/1 'Poppins',sans-serif; color:var(--gold); transition:transform .2s; }
.acc details[open] summary::after{ transform:rotate(45deg); }
.acc .body{ padding:0 0 22px; max-width:70ch; font-size:16px; }
.acc .body p{ margin:0 0 10px; } .acc .body p:last-child{ margin:0; }
.acc .body ul{ margin:8px 0 0; padding-left:20px; } .acc .body li{ margin:4px 0; }

/* ---- galerie, visionneuse ---- */
.gallery{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:28px; }
.gallery.four{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.gallery figure{ margin:0; cursor:zoom-in; }
.gallery img{ width:100%; aspect-ratio:16/9; object-fit:cover; object-position:top left; border:1px solid var(--line-d); border-radius:4px; }
.light .gallery img{ border-color:var(--line); }
.gallery figcaption{ font:600 12px 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; color:var(--gold); margin-top:14px; }
.lightbox{ position:fixed; inset:0; background:rgba(15,26,32,.95); display:none; place-items:center; z-index:100; padding:24px; }
.lightbox.open{ display:grid; }
.lightbox img{ max-width:min(1400px,100%); max-height:85vh; width:auto; border-radius:4px; box-shadow:0 30px 80px rgba(0,0,0,.5); }
.lightbox figcaption{ color:#fff; text-align:center; margin-top:12px; font:600 13px 'Poppins',sans-serif; letter-spacing:.1em; text-transform:uppercase; }
.lightbox .close{ position:absolute; top:16px; right:16px; width:44px; height:44px; border-radius:50%; border:0; background:rgba(255,255,255,.14); color:#fff; font-size:22px; cursor:pointer; }

/* ---- coordonnées, formulaire ---- */
.coords{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
.coords div{ border-left:3px solid var(--gold); padding:4px 0 4px 20px; }
.coords b{ display:block; font:600 12px 'Poppins',sans-serif; letter-spacing:.16em; text-transform:uppercase; color:var(--gold); margin-bottom:8px; }
.coords a{ font:600 19px 'Poppins',sans-serif; color:var(--navy); }
.coords p{ margin:0; font-size:16px; }
.coords small{ display:block; color:var(--mute); font-size:14px; margin-top:4px; }
.form-card{ max-width:860px; margin:0 auto; }
.form-card h2{ text-align:center; font-size:clamp(28px,3.2vw,36px); font-weight:600; margin:0 0 12px; }
.form-card .intro{ text-align:center; color:var(--mute-d); max-width:56ch; margin:0 auto 36px; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-grid .full{ grid-column:1 / -1; }
.field label{ display:block; font:600 11px 'Poppins',sans-serif; letter-spacing:.16em; text-transform:uppercase; color:var(--mute-d); margin-bottom:6px; }
.field input, .field select, .field textarea{ width:100%; font:inherit; font-size:16px; padding:13px 14px; border:1px solid rgba(255,255,255,.18); background:rgba(255,255,255,.04); color:#fff; border-radius:3px; }
.field select{ appearance:none; -webkit-appearance:none; padding-right:36px; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c2a15b' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 12px center; background-size:16px; }
.field select option{ color:var(--ink); background:#fff; }
.field textarea{ min-height:140px; resize:vertical; }
.field input:focus, .field select:focus, .field textarea:focus{ outline:0; border-color:var(--gold); }
.field .hint{ font-size:13px; color:var(--mute-d); margin-top:4px; }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea{ border-color:var(--danger); }
.field .error{ color:#f0a195; font-size:13px; margin-top:4px; }
.check, .field .check{ display:flex; gap:10px; align-items:flex-start; font-size:14px; color:var(--mute-d); text-transform:none; letter-spacing:0; font-family:'Karla',sans-serif; font-weight:400; }
.check input{ width:18px; height:18px; margin-top:3px; flex:none; accent-color:var(--gold); }
.check a{ color:var(--gold); text-decoration:underline; }
.req{ color:var(--gold); }
.form-alert{ margin-top:16px; padding:14px 16px; border-radius:3px; font-weight:700; }
.form-alert.ok{ background:rgba(43,179,173,.15); color:#9fe3df; }
.form-alert.ko{ background:rgba(192,57,43,.18); color:#f0a195; }
.fine{ font-size:13px; color:var(--mute-d); text-align:center; margin:14px 0 0; }

/* ---- pied de page ---- */
footer{ background:var(--navy-3); color:#fff; padding:72px 0 36px; }
footer .logo{ justify-content:center; font-size:28px; margin-bottom:10px; }
footer .logo img{ width:32px; height:32px; }
footer .tagline{ text-align:center; color:var(--mute-d); max-width:56ch; margin:0 auto 36px; }
footer .coord{ display:flex; justify-content:center; gap:40px; flex-wrap:wrap; margin:0; font-size:15px; color:var(--mute-d); }
footer .coord b{ color:#fff; font-weight:500; }
footer .links{ display:flex; justify-content:center; flex-wrap:wrap; gap:8px 26px; margin:36px 0 0; padding:0; list-style:none; font:500 11.5px 'Poppins',sans-serif; letter-spacing:.14em; text-transform:uppercase; }
footer .links a{ color:#fff; opacity:.8; } footer .links a:hover{ color:var(--gold); opacity:1; }
footer .legal{ border-top:1px solid var(--line-d); margin-top:32px; padding-top:20px; display:flex; flex-wrap:wrap; gap:8px 28px; font-size:13px; color:var(--mute-d); justify-content:center; }
footer .legal a{ color:var(--mute-d); } footer .legal a:hover{ color:#fff; }
footer .tag{ color:var(--gold); }
footer .form-card{ margin-bottom:48px; }

/* ---- responsive ---- */
@media (max-width:980px){
  .hero .wrap, .page-hero .wrap, .split, .arg .wrap, .services .wrap, .coords{ grid-template-columns:1fr; }
  .split.flip > :first-child{ order:0; }
  .hero .wrap{ min-height:0; padding:0 24px 48px; } .hero .panel{ margin:0 -24px; padding:44px 24px; } .hero .panel::before{ display:none; }
  .page-hero .wrap{ padding-top:48px; padding-bottom:48px; }
  .stage{ margin-top:36px; }
  .laptop .base{ margin:0 -10px; }
  .services .label{ border-left:0; border-bottom:2px solid var(--gold); padding:0 0 10px; }
  .cols{ grid-template-columns:1fr 1fr; border-left:0; } .cols article{ border:1px solid var(--line-d); min-height:0; }
  .cards, .cards.four{ grid-template-columns:1fr 1fr; }
  .steps, .steps.long{ grid-template-columns:1fr; } .steps.long ul{ columns:1; }
  .checks.two{ grid-template-columns:1fr; }
  .form-grid{ grid-template-columns:1fr; }
  .gallery, .gallery.four{ grid-template-columns:1fr 1fr; }
  .band{ padding:64px 0; } .band.tight{ padding:48px 0; } .wrap{ padding:0 24px; }
  .menu, .site .cta{ display:none; } .burger{ display:block; }
  .site.open .menu{ display:flex; flex-direction:column; gap:4px; position:absolute; left:0; right:0; top:72px; background:var(--navy-3); border-bottom:1px solid var(--line-d); padding:14px 24px 20px; margin:0; }
  .site.open .menu a{ display:block; padding:12px 0; font-size:14px; }
  .site.open .menu a[aria-current="page"]{ box-shadow:none; }
  .only-mobile{ display:block; }
}
@media (max-width:600px){
  .cols, .cards, .cards.two, .cards.four, .gallery, .gallery.four{ grid-template-columns:1fr; }
  .kv{ grid-template-columns:1fr; gap:2px 0; } .kv dd{ margin-bottom:12px; }
  footer .coord{ flex-direction:column; gap:10px; align-items:center; text-align:center; }
}