/* J.L.Audiovisuel Production — proposition 3 « Signal »
   Layout : grille éditoriale nette, angles vifs, images en parallélogramme reprenant les bandes obliques du logo,
   prestations présentées en index de lignes ; bleu du logo réservé aux actions et aux repères. */
:root{
  --paper:#ffffff; --mist:#f2f4f7; --line:#dde2e8; --ink:#121820; --muted:#56606c;
  --steel:#6b7480; --blue:#1f6fd0; --blue-ink:#ffffff; --blue-text:#1a5fb4; --deep:#0f2238; --deep-ink:#e8eef5;
  --f-display:"Archivo","Arial Narrow","Helvetica Neue",Arial,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --slant:polygon(9% 0,100% 0,91% 100%,0 100%);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0d1218; --mist:#141b23; --line:#26303b; --ink:#e9eef3; --muted:#9ba6b2;
  --steel:#8d98a5; --blue:#3f8ae3; --blue-ink:#ffffff; --blue-text:#73aef0; --deep:#0a1a2c; --deep-ink:#e8eef5; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0d1218; --mist:#141b23; --line:#26303b; --ink:#e9eef3; --muted:#9ba6b2;
  --steel:#8d98a5; --blue:#3f8ae3; --blue-ink:#ffffff; --blue-text:#73aef0; --deep:#0a1a2c; --deep-ink:#e8eef5; color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
[hidden]{display:none!important}
a{color:inherit}
p{margin:0}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.skip{position:absolute;left:-9999px;top:0;background:var(--blue);color:var(--blue-ink);padding:10px 16px;z-index:50}
.skip:focus{left:16px;top:16px}
.wrap{max-width:1200px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}

h1,h2,h3{font-family:var(--f-display);margin:0;line-height:1.02;text-wrap:balance;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5.4vw,4.6rem);font-weight:800;font-stretch:112%}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem);font-weight:800;font-stretch:108%}
h3{font-size:1.28rem;font-weight:700;font-stretch:104%;line-height:1.2}
.eyebrow{font-family:var(--f-mono);font-size:.78rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:12px;margin-bottom:18px}
.eyebrow::before{content:"";width:34px;height:12px;flex:none;background:linear-gradient(115deg,transparent 0 18%,var(--steel) 18% 34%,transparent 34% 42%,var(--blue) 42% 58%,transparent 58% 66%,var(--steel) 66% 82%,transparent 82%)}
.lead{font-size:1.16rem;color:var(--muted);max-width:60ch}
.muted{color:var(--muted)}
.prose{max-width:68ch;display:grid;gap:16px}
.prose p{color:var(--muted)}
.prose strong{color:var(--ink);font-weight:600}

/* en-tête */
.site-head{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:44px;width:auto}
.brand span{font-family:var(--f-display);font-weight:800;font-stretch:110%;font-size:1.05rem;line-height:1.05;letter-spacing:.01em;text-transform:uppercase}
.brand small{display:block;font-family:var(--f-mono);font-weight:500;font-size:.66rem;letter-spacing:.12em;color:var(--blue-text)}
.nav{display:flex;align-items:center;gap:2px}
.nav a{text-decoration:none;font-weight:500;font-size:.95rem;padding:10px 12px;color:var(--muted);border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--blue)}
.nav .btn{margin-left:10px;color:var(--blue-ink);border:0}
.menu{display:none}
.menu summary{list-style:none;cursor:pointer;font-family:var(--f-mono);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--line);padding:10px 14px}
.menu summary::-webkit-details-marker{display:none}
.menu[open] summary{border-color:var(--ink)}
.menu .panel{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);padding:8px max(20px,env(safe-area-inset-right,0px)) 20px max(20px,env(safe-area-inset-left,0px));display:grid}
.menu .panel a{text-decoration:none;padding:13px 0;border-bottom:1px solid var(--line);font-weight:500}
.menu .panel a[aria-current="page"]{color:var(--blue-text)}

/* boutons */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--f-body);font-weight:600;font-size:1rem;padding:14px 22px;background:var(--blue);color:var(--blue-ink);border:1px solid var(--blue);cursor:pointer;clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);transition:background .15s}
.btn:hover{background:color-mix(in srgb,var(--blue) 85%,#000)}
.btn.ghost{background:transparent;color:var(--ink);border:0;box-shadow:inset 0 0 0 1px var(--line);clip-path:none}
.btn.ghost:hover{box-shadow:inset 0 0 0 1px var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* fil d'Ariane */
.crumbs{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.06em;color:var(--muted);padding-top:22px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink)}

/* héros */
.hero{padding-block:44px 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero .lead{margin-top:22px}
.hero .actions{margin-top:30px}
.shot{position:relative;margin:0}
.shot img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;clip-path:var(--slant);background:var(--mist)}
.shot figcaption{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);margin-top:10px;padding-left:9%}
.shot.flat img{clip-path:none}

/* chiffres clés */
.facts{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.fact{padding:26px 22px;border-right:1px solid var(--line);display:grid;gap:4px;align-content:start}
.fact:first-child{padding-left:0}
.fact:last-child{border-right:0}
.fact b{font-family:var(--f-display);font-weight:800;font-stretch:112%;font-size:1.7rem;line-height:1.1}
.fact span{color:var(--muted);font-size:.95rem}

/* sections */
.sec{padding-block:80px;border-bottom:1px solid var(--line)}
.sec.mist{background:var(--mist)}
.sec.deep{background:var(--deep);color:var(--deep-ink);border-bottom:0}
.sec.deep .lead,.sec.deep .muted,.sec.deep .prose p{color:color-mix(in srgb,var(--deep-ink) 75%,transparent)}
.sec.deep .eyebrow{color:color-mix(in srgb,var(--deep-ink) 70%,transparent)}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:24px 48px;align-items:end;margin-bottom:44px}
.sec-head .lead{justify-self:end}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}

/* index des prestations */
.index{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.index li{border-bottom:1px solid var(--line)}
.index a{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.4fr) auto;gap:24px;align-items:center;padding:26px 0;text-decoration:none;transition:padding .2s,background .2s}
.index a:hover{padding-inline:16px;background:var(--mist)}
.index h3{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;font-stretch:110%}
.index p{color:var(--muted)}
.index .go{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-text);white-space:nowrap}

/* grilles de contenu */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.cell{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;gap:10px;align-content:start;background:var(--paper)}
.sec.mist .cell{background:var(--mist)}
.cell p{color:var(--muted)}
.cell .tag{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-text)}
.ticks{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:6px}
.ticks li{display:flex;gap:10px;align-items:baseline}
.ticks li::before{content:"";width:10px;height:2px;background:var(--blue);flex:none;transform:translateY(-4px)}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;counter-reset:s}
.steps.three{grid-template-columns:repeat(3,1fr)}
.steps li{counter-increment:s;border-top:3px solid var(--ink);padding-top:16px;display:grid;gap:6px;align-content:start}
.steps li::before{content:"Étape " counter(s);font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue-text)}
.steps p{color:var(--muted);font-size:.95rem}
.sec.deep .steps li{border-color:var(--deep-ink)}
.sec.deep .steps li::before{color:#8fc0f5}
.sec.deep .steps p{color:color-mix(in srgb,var(--deep-ink) 75%,transparent)}

.specs{list-style:none;margin:0;padding:0;border-top:1px solid color-mix(in srgb,currentColor 25%,transparent)}
.specs li{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid color-mix(in srgb,currentColor 25%,transparent)}
.specs li span:last-child{color:var(--muted);text-align:right}
.sec.deep .specs li span:last-child{color:color-mix(in srgb,var(--deep-ink) 70%,transparent)}

/* zones & références */
.places{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;padding:0;list-style:none}
.places li{border:1px solid var(--line);padding:8px 14px;font-size:.95rem;background:var(--paper)}
.sec.deep .places li{background:transparent;color:var(--deep-ink);border-color:color-mix(in srgb,var(--deep-ink) 30%,transparent)}
.refs{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.ref{padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;gap:2px;align-content:start;min-height:120px}
.ref-logo{display:grid;place-items:center;height:110px;background:#fff;margin-bottom:12px;padding:12px}
.ref-logo img{max-height:86px;width:auto;object-fit:contain}
.ref b{font-family:var(--f-display);font-weight:800;font-stretch:110%;font-size:1.35rem}
.ref span{font-size:.85rem;color:var(--muted)}

/* mise en avant TF1 */
.feature{display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:center}
.player{position:relative;aspect-ratio:16/9;max-width:100%;background:#0f2238;overflow:hidden}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.player a.poster{position:absolute;inset:0;display:block}
.player a.poster img{width:100%;height:100%;object-fit:cover}
.player .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:78px;height:78px;border-radius:50%;background:#fff;color:#1f6fd0;display:grid;place-items:center;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.onair{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-mono);font-weight:500;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;background:#fff;color:#0f2238;padding:7px 12px}
.onair::before{content:"";width:8px;height:8px;border-radius:50%;background:#e2342b}
.player .onair{position:absolute;right:14px;top:14px;pointer-events:none}

/* FAQ */
.faq{border-top:2px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px 0;font-family:var(--f-display);font-weight:700;font-stretch:104%;font-size:1.2rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-mono);font-size:1.4rem;color:var(--blue-text);flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 22px;color:var(--muted);max-width:72ch}

/* liens associés */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related a{border:1px solid var(--line);padding:22px;text-decoration:none;display:grid;gap:6px;transition:border-color .15s}
.related a:hover{border-color:var(--blue)}
.related b{font-family:var(--f-display);font-weight:800;font-stretch:108%;font-size:1.2rem}
.related span{color:var(--muted);font-size:.95rem}

/* appel à l'action */
.cta{background:var(--blue);color:var(--blue-ink)}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;padding-block:56px}
.cta h2{max-width:20ch}
.cta p{opacity:.88;margin-top:10px}
.cta .btn{background:#fff;color:#0f2238;border-color:#fff}
.cta .btn:hover{background:#e8eef5}
.cta .tel{font-family:var(--f-display);font-weight:800;font-stretch:110%;font-size:1.6rem;user-select:all}

/* galerie */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery figure{margin:0}
.gallery img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;background:var(--mist)}
.gallery figcaption{font-size:.9rem;color:var(--muted);margin-top:8px}

/* contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.coords{display:grid;gap:0;border-top:2px solid var(--ink)}
.coord{padding:20px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.coord small{display:block;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.coord strong{font-size:1.2rem;font-weight:600;user-select:all;word-break:break-word}
.copy{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:8px 12px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.copy:hover{border-color:var(--ink)}
form.quote{background:var(--mist);padding:32px;display:grid;gap:18px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:grid;gap:7px;font-weight:600;font-size:.93rem}
input,select,textarea{font:inherit;font-weight:400;color:var(--ink);background:var(--paper);border:1px solid var(--line);padding:12px 14px;width:100%;border-radius:0}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue)}
textarea{min-height:150px;resize:vertical}
.form-out{font-size:.95rem;color:var(--muted)}
.form-out.ok{color:var(--ink);border-left:3px solid var(--blue);padding-left:12px}

/* pied de page */
.site-foot{background:var(--deep);color:var(--deep-ink);padding-block:64px 32px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px}
.foot-grid img{height:150px;width:auto;margin-bottom:18px;background:#fff;padding:14px 18px;clip-path:polygon(14px 0,100% 0,calc(100% - 14px) 100%,0 100%)}
.foot-grid h2{font-family:var(--f-mono);font-size:.74rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:color-mix(in srgb,var(--deep-ink) 60%,transparent);margin-bottom:14px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-grid a{text-decoration:none}
.foot-grid a:hover{color:#8fc0f5}
.foot-grid p{color:color-mix(in srgb,var(--deep-ink) 72%,transparent);max-width:34ch}
.legal{margin-top:48px;padding-top:20px;border-top:1px solid color-mix(in srgb,var(--deep-ink) 18%,transparent);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.88rem;color:color-mix(in srgb,var(--deep-ink) 60%,transparent)}

@media (max-width:1020px){
  .nav{display:none}
  .menu{display:block}
  .hero-grid,.split,.feature,.contact-grid,.sec-head{grid-template-columns:1fr;gap:36px}
  .sec-head .lead{justify-self:start}
  .grid3,.related{grid-template-columns:1fr 1fr}
  .steps,.steps.three{grid-template-columns:1fr 1fr}
  .refs{grid-template-columns:repeat(3,1fr)}
  .facts{grid-template-columns:1fr 1fr}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(3){padding-left:0}
  .fact:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .grid3,.grid2,.related,.steps,.steps.three,.f2,.foot-grid,.gallery{grid-template-columns:1fr}
  .refs{grid-template-columns:1fr 1fr}
  .index a{grid-template-columns:1fr;gap:8px}
  .sec{padding-block:56px}
  form.quote{padding:22px}
  .brand span{font-size:.92rem}
  .brand img{height:38px}
}
/* réalisations en photos */
.works{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:250px;gap:12px}
.works .work{position:relative;margin:0;overflow:hidden;background:var(--mist)}
.works .work:first-child{grid-column:span 2;grid-row:span 2}
.works .work img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.works .work:hover img{transform:scale(1.03)}
.works .work figcaption{position:absolute;left:0;right:0;bottom:0;padding:40px 16px 14px;background:linear-gradient(transparent,rgba(8,14,22,.85));color:#fff;font-size:.92rem;font-weight:500}
.shot figcaption{max-width:52ch}
@media (max-width:640px){.works{grid-template-columns:1fr;grid-auto-rows:240px}.works .work:first-child{grid-column:auto;grid-row:span 1}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}