:root{
  --terracotta:#B4502E; --ember:#E8743B; --gold:#E8A23B; --sand:#C9A66B;
  --steel:#3A4A5A; --ink:#1B2026; --night:#0E1217; --night2:#141A21;
  --paper:#FBF8F3; --cream:#F4EFE7; --cyan:#46B5A8;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:'Space Grotesk',system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.mono{font-family:'Space Mono',monospace}
.ar{font-family:'Tajawal',sans-serif}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;position:relative}
em{font-style:italic;color:var(--terracotta)}
a{color:inherit}

/* ---------- NAV ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px 32px;transition:background .4s,padding .4s,box-shadow .4s}
.nav.scrolled{background:rgba(251,248,243,.92);backdrop-filter:blur(10px);padding:9px 32px;box-shadow:0 1px 0 rgba(27,32,38,.08)}
.nav__brand{display:flex;align-items:center;text-decoration:none}
.nav__logo{height:30px;width:auto;display:block;transition:height .4s}
.nav.scrolled .nav__logo{height:26px}
.nav__logo--ink{display:none}
.nav.scrolled .nav__logo--cream{display:none}
.nav.scrolled .nav__logo--ink{display:block}
.nav__links{display:flex;align-items:center;gap:28px}
.nav__links a{color:#dfe6ec;text-decoration:none;font-size:14px;font-weight:500;transition:color .3s}
.nav.scrolled .nav__links a{color:var(--steel)}
.nav__links a:hover{color:var(--ember)}
.nav__cta{border:1.5px solid currentColor;border-radius:30px;padding:7px 16px}
.nav.scrolled .nav__cta{color:var(--terracotta)!important;border-color:var(--terracotta)}
@media(max-width:760px){.nav__links a:not(.nav__cta){display:none}.nav{padding:14px 20px}.nav__logo{height:26px}}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 90% at 50% 10%, #1a2330 0%, var(--night) 55%, #090c10 100%);overflow:hidden}
#bridge{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero__veil{position:absolute;inset:0;background:radial-gradient(80% 60% at 50% 60%, transparent 30%, rgba(9,12,16,.55) 100%);pointer-events:none}
.hero__inner{position:relative;z-index:3;text-align:center;padding:0 24px;max-width:880px;margin-top:40px}
.herologo{width:min(640px,84vw);height:auto;display:block;margin:0 auto;filter:drop-shadow(0 18px 50px rgba(0,0,0,.55))}
.hero__sub{color:#c3ccd4;font-size:clamp(15px,1.7vw,19px);max-width:640px;margin:22px auto 0}
.hero__sub strong{color:var(--gold);font-weight:600}
.hero__cta{display:flex;gap:14px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.btn{display:inline-block;border-radius:34px;padding:13px 26px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .2s,background .3s,color .3s,border-color .3s}
.btn:hover{transform:translateY(-2px)}
.btn--solid{background:var(--ember);color:#fff;box-shadow:0 10px 28px rgba(232,116,59,.38)}
.btn--solid:hover{background:var(--terracotta)}
.btn--ghost{border:1.6px solid #5b6b78;color:#e7edf2}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--ghost-light{border-color:rgba(255,255,255,.6);color:#fff}
.hero__scroll{position:absolute;bottom:84px;left:50%;transform:translateX(-50%);z-index:3;color:#8b97a2;
  font-family:'Space Mono';font-size:11px;letter-spacing:.2em;text-transform:uppercase;display:flex;align-items:center;gap:10px}
.hero__scroll span{width:1px;height:34px;background:linear-gradient(#8b97a2,transparent);display:block;animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(.2);transform-origin:top;opacity:.3}50%{transform:scaleY(1);opacity:1}100%{transform:scaleY(.2);transform-origin:bottom;opacity:.3}}
.hero__pillars{position:absolute;bottom:30px;left:0;right:0;text-align:center;z-index:3;color:#7c8893;font-size:11px;letter-spacing:.28em}
@media(max-width:600px){.hero__pillars{font-size:8.5px;letter-spacing:.16em}.hero__scroll{display:none}}

/* ---------- LOGO QUI SE CONSTRUIT ---------- */
/* État par défaut = final (sans JS, le logo s'affiche normalement). .anim rejoue la construction. */
.herologo.anim .bl-letter,.herologo.anim .bl-pylon{opacity:0;animation:blFade .7s ease forwards}
.herologo.anim .bl-deck{stroke-dasharray:1700;stroke-dashoffset:1700;animation:blDraw .8s ease forwards}
.herologo.anim .bl-cables line,.herologo.anim .bl-cables path{stroke-dasharray:640;stroke-dashoffset:640;animation:blDraw .9s ease forwards}
.herologo.anim .bl-pylon{animation-delay:.55s}
.herologo.anim .bl-letter:nth-child(1){animation-delay:.85s}
.herologo.anim .bl-letter:nth-child(2){animation-delay:.98s}
.herologo.anim .bl-letter:nth-child(3){animation-delay:1.11s}
.herologo.anim .bl-letter:nth-child(4){animation-delay:1.24s}
.herologo.anim .bl-cables *{animation-delay:1.35s}
.herologo.anim .bl-cables *:nth-child(2n){animation-delay:1.5s}
.herologo.anim .bl-cables *:nth-child(3n){animation-delay:1.65s}
.herologo.anim .bl-cables *:nth-child(5n){animation-delay:1.85s}
.herologo.anim .bl-cables *:nth-child(7n){animation-delay:2.05s}
@keyframes blDraw{to{stroke-dashoffset:0}}
@keyframes blFade{from{opacity:0}to{opacity:1}}

/* ---------- BANDS ---------- */
.band{padding:120px 0;position:relative}
.eyebrow{font-family:'Space Mono';text-transform:uppercase;letter-spacing:.26em;font-size:12px;color:var(--terracotta);margin-bottom:18px}
.eyebrow--light{color:var(--gold)}
.big{font-size:clamp(28px,4.4vw,52px);line-height:1.12;font-weight:700;letter-spacing:-.01em;margin:0 0 24px}
.big--light{color:var(--paper)}
.lead{font-size:clamp(16px,1.8vw,20px);color:#3f4a55;max-width:760px}
.lead strong{color:var(--terracotta)}
.lead--light{color:#c3ccd4}.lead--light strong{color:var(--gold)}

.band--pont{background:var(--paper);padding-bottom:40px}
.band--pont .big{max-width:900px}

/* séparateur câbles dessiné au scroll */
.divider{margin:54px auto 0;max-width:var(--maxw);padding:0 28px}
.divider svg{width:100%;height:auto;display:block;overflow:visible}
.dv-deck,.dv-cables line{fill:none;stroke:var(--terracotta)}
.dv-deck{stroke-width:3;stroke-linecap:round;opacity:.55;stroke-dasharray:1200;stroke-dashoffset:1200;transition:stroke-dashoffset 1.1s ease}
.dv-cables line{stroke-width:1.2;opacity:.35;stroke-dasharray:300;stroke-dashoffset:300;transition:stroke-dashoffset .9s ease}
.dv-apex{fill:var(--ember);opacity:0;transition:opacity .5s ease .5s}
.divider.in .dv-deck{stroke-dashoffset:0}
.divider.in .dv-cables line{stroke-dashoffset:0}
.divider.in .dv-cables line:nth-child(2n){transition-delay:.12s}
.divider.in .dv-cables line:nth-child(3n){transition-delay:.24s}
.divider.in .dv-apex{opacity:1}

.band--dark{background:linear-gradient(180deg,var(--night) 0%,var(--night2) 100%);color:var(--paper);overflow:hidden}
/* blueprint : grille technique + cadres d'angle */
.blueprint{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(122,160,180,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(122,160,180,.07) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(120% 80% at 50% 30%,#000 40%,transparent 85%);-webkit-mask-image:radial-gradient(120% 80% at 50% 30%,#000 40%,transparent 85%)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:50px;position:relative}
@media(max-width:820px){.cards{grid-template-columns:1fr}}
.card{background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.09);border-radius:18px;padding:30px 30px 34px;transition:transform .35s,border-color .35s,background .35s}
.card:hover{transform:translateY(-6px);border-color:var(--ember);background:rgba(232,116,59,.06)}
.card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.card__no{color:var(--ember);font-size:14px;letter-spacing:.1em}
.card h3{font-size:23px;margin:0 0 12px;color:var(--paper)}
.card p{color:#aab4bd;font-size:15.5px;margin:0}
.card em{color:var(--gold)}
/* icônes piliers (line-art ingénierie, dessinées à l'apparition) */
.picon{width:46px;height:46px;flex:none}
.picon .pd{stroke:var(--ember);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.card.in .picon .pd{stroke-dasharray:260;stroke-dashoffset:260;animation:blDraw 1.1s ease forwards}
.card.in .picon .pd:nth-child(2n){animation-delay:.15s}
.card.in .picon .pd:nth-child(3n){animation-delay:.3s}
.card:hover .picon .pd{stroke:var(--gold)}

/* ---------- CREDO : moderne × authentique ---------- */
.credo{background:var(--cream);padding:64px 0;border-top:1px solid rgba(27,32,38,.06);border-bottom:1px solid rgba(27,32,38,.06)}
.credo__grid{display:grid;grid-template-columns:1fr auto 1fr;gap:40px;align-items:center}
.credo__side p{font-size:15.5px;color:#4a545f;margin:10px 0 0;max-width:320px}
.credo__side--warm{text-align:right;justify-self:end}
.credo__side--warm p{margin-left:auto}
.credo__tag{display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--terracotta)}
.credo__tag.ar{font-size:22px;letter-spacing:0;color:var(--terracotta)}
.credo__star{width:120px;height:120px}
.credo__star svg{width:100%;height:100%;overflow:visible}
.zstar rect{fill:none;stroke:var(--terracotta);stroke-width:2;opacity:.7}
.zstar{transform-box:fill-box;transform-origin:center;animation:spin 48s linear infinite}
.zdot{fill:var(--ember)}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:760px){.credo__grid{grid-template-columns:1fr;text-align:center;gap:24px}.credo__side--warm{text-align:center;justify-self:center}.credo__side--warm p,.credo__side p{margin-left:auto;margin-right:auto}.credo__star{margin:0 auto}}

/* ---------- MISSION / ZELLIGE ---------- */
.band--zellige{background:var(--cream);overflow:hidden}
.zellige-field{position:absolute;inset:-40px;pointer-events:none;opacity:.9;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cg fill='none' stroke='%23B4502E' stroke-width='1.3' opacity='0.16'%3E%3Crect x='32' y='32' width='76' height='76'/%3E%3Crect x='32' y='32' width='76' height='76' transform='rotate(45 70 70)'/%3E%3Ccircle cx='70' cy='70' r='5'/%3E%3C/g%3E%3C/svg%3E");
  background-size:140px 140px}
.wrap--split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
@media(max-width:820px){.wrap--split{grid-template-columns:1fr;gap:28px}}
.mission__arch{position:relative;padding-top:8px}
.arch{position:absolute;top:-26px;left:-18px;width:230px;height:auto;opacity:.5;z-index:0;pointer-events:none}
.arch__line{fill:none;stroke:var(--terracotta);stroke-width:2}
.arch__key{fill:none;stroke:var(--gold);stroke-width:2}
.band--zellige.in .arch__line,.band--zellige.in .arch__key{stroke-dasharray:1400;stroke-dashoffset:1400;animation:blDraw 1.6s ease forwards .2s}
.mission__arch .eyebrow,.mission__arch .big{position:relative;z-index:1}
.facts{list-style:none;padding:0;margin:26px 0 0;position:relative;z-index:1}
.facts li{padding:18px 0;border-top:1px solid rgba(27,32,38,.12);display:flex;flex-direction:column;gap:4px}
.facts__k{color:var(--terracotta);font-size:12px;letter-spacing:.06em}
.facts__v{color:#444f5a;font-size:16px}

.band--cta{background:linear-gradient(135deg,#7a2e1c 0%,var(--terracotta) 55%,var(--ember) 100%);color:#fff;text-align:center}
.center{max-width:760px;margin:0 auto}
.center-cta{justify-content:center}
.band--cta .lead{margin:0 auto}

/* ---------- FOOTER ---------- */
.footer{background:var(--night);color:#aeb8c1;padding:70px 0 30px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
@media(max-width:760px){.footer__grid{grid-template-columns:1fr;gap:30px}}
.footer__logo{width:230px;max-width:70%;height:auto;margin-bottom:16px;filter:brightness(0) invert(.86)}
.footer__names{font-size:13px;line-height:1.7;color:#8b97a2;max-width:420px}
.footer__names strong{color:#d7dee4}
.footer__names .ar{font-size:16px;color:#cfd6dc}
.footer__col{display:flex;flex-direction:column;gap:10px}
.footer__h{color:var(--gold);font-size:11px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:4px}
.footer__col a{color:#aeb8c1;text-decoration:none;font-size:15px;transition:color .3s}
.footer__col a:hover{color:var(--ember)}
.footer__muted{color:#6c7783;font-size:13px}
.footer__base{max-width:var(--maxw);margin:46px auto 0;padding:22px 28px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#6c7783;font-size:11px;letter-spacing:.06em}

/* ---------- SÉLECTEUR DE LANGUE ---------- */
.lang{display:inline-flex;gap:2px;margin-left:6px;border:1px solid rgba(255,255,255,.28);border-radius:30px;padding:3px}
.nav.scrolled .lang{border-color:rgba(27,32,38,.18)}
.lang button{appearance:none;background:none;border:0;cursor:pointer;font:600 12px/1 'Space Grotesk',sans-serif;color:#cdd5dc;padding:5px 9px;border-radius:20px;transition:background .25s,color .25s}
.nav.scrolled .lang button{color:var(--steel)}
.lang button[lang="ar"]{font-family:'Tajawal',sans-serif;font-size:15px;line-height:1}
.lang button:hover{color:var(--ember)}
.lang button.is-active{background:var(--ember);color:#fff}
@media(max-width:760px){.lang{margin-left:0}}

/* ---------- CONTACT ---------- */
.band--contact{background:var(--paper);border-top:1px solid rgba(27,32,38,.06)}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
@media(max-width:820px){.contact__grid{grid-template-columns:1fr;gap:30px}}
.contact__intro .lead{margin-bottom:18px}
.contact__mail{color:var(--terracotta);text-decoration:none;font-size:15px;letter-spacing:.04em}
.contact__mail:hover{color:var(--ember)}
.contact__form{display:flex;flex-direction:column;gap:15px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font:700 11px 'Space Mono',monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--steel)}
.field input,.field textarea{font:15px/1.5 'Space Grotesk',sans-serif;color:var(--ink);background:#fff;border:1px solid rgba(27,32,38,.16);border-radius:12px;padding:12px 14px;width:100%;transition:border-color .25s,box-shadow .25s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ember);box-shadow:0 0 0 3px rgba(232,116,59,.15)}
.field textarea{resize:vertical;min-height:110px}
.contact__form .btn{align-self:flex-start;border:0;cursor:pointer}
.contact__form .btn[disabled]{opacity:.6;cursor:default}
.contact__status{margin:2px 0 0;font-size:14px;min-height:20px}
.contact__status.ok{color:#0B6E4F}
.contact__status.err{color:var(--terracotta)}
.hp{position:absolute!important;left:-9999px!important;top:auto;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}

/* ---------- ARABE & RTL ---------- */
html[lang="ar"] body,html[lang="ar"] .big,html[lang="ar"] .lead,html[lang="ar"] .hero__sub,
html[lang="ar"] .card h3,html[lang="ar"] .card p,html[lang="ar"] .eyebrow,html[lang="ar"] .credo__side p,
html[lang="ar"] .facts__k,html[lang="ar"] .facts__v,html[lang="ar"] .field label,html[lang="ar"] .btn,
html[lang="ar"] .nav__links a,html[lang="ar"] .footer__col a,html[lang="ar"] .footer__h,
html[lang="ar"] .footer__base span,html[lang="ar"] .hero__pillars,html[lang="ar"] .footer__muted{font-family:'Tajawal',sans-serif}
html[lang="ar"] .eyebrow,html[lang="ar"] .facts__k,html[lang="ar"] .hero__pillars,
html[lang="ar"] .field label,html[lang="ar"] .footer__h{letter-spacing:0;text-transform:none}
html[lang="ar"] .big{letter-spacing:0;line-height:1.3}
[dir="rtl"] .lead,[dir="rtl"] .big,[dir="rtl"] .eyebrow,[dir="rtl"] .card,[dir="rtl"] .facts li,[dir="rtl"] .contact__intro{text-align:right}
[dir="rtl"] .center,[dir="rtl"] .center *{text-align:center}
[dir="rtl"] .field input,[dir="rtl"] .field textarea{text-align:right}
[dir="rtl"] .contact__form .btn{align-self:flex-end}
[dir="rtl"] .credo__side--tech{text-align:right}
[dir="rtl"] .credo__side--warm{text-align:left;justify-self:start}
[dir="rtl"] .credo__side--warm p{margin-left:0;margin-right:auto}
[dir="rtl"] .arch{left:auto;right:-18px}

/* ---------- BADGE HAUT DE PAGE (favicon animé) ---------- */
.totop{position:fixed;bottom:26px;inset-inline-end:26px;z-index:60;width:54px;height:54px;padding:0;border:0;border-radius:50%;
  background:none;cursor:pointer;opacity:0;transform:translateY(20px) scale(.6);pointer-events:none;
  transition:opacity .4s ease,transform .5s cubic-bezier(.2,.8,.2,1);filter:drop-shadow(0 8px 20px rgba(0,0,0,.35))}
.totop img{width:100%;height:100%;display:block;border-radius:50%}
.totop.show{opacity:1;transform:none;pointer-events:auto;animation:totopGlow 3.4s ease-in-out infinite}
.totop.show:hover{transform:translateY(-3px) scale(1.07)}
@keyframes totopGlow{0%,100%{filter:drop-shadow(0 8px 20px rgba(0,0,0,.35))}50%{filter:drop-shadow(0 8px 20px rgba(0,0,0,.4)) drop-shadow(0 0 13px rgba(232,162,59,.55))}}
@media(max-width:600px){.totop{width:48px;height:48px;bottom:18px;inset-inline-end:18px}}

/* ---------- REVEAL ---------- */
.reveal,.card{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in,.card.in{opacity:1;transform:none}
.card[data-d="1"]{transition-delay:.12s}.card[data-d="2"]{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){
  .reveal,.card{opacity:1;transform:none;transition:none}
  .herologo.anim .bl-letter,.herologo.anim .bl-pylon,.herologo.anim .bl-deck,.herologo.anim .bl-cables *{animation:none;opacity:1;stroke-dashoffset:0}
  .zstar{animation:none}
  .dv-deck,.dv-cables line{stroke-dashoffset:0}.dv-apex{opacity:1}
  .hero__scroll span{animation:none}
}