/* ==========================================================
   BK GROUP INVESTMENT - Style premium
   Palette : Bordeaux #a91d31 / Bleu Royal #1a339e / Blanc / Noir doux #0b0d12
   ========================================================== */

:root{
  --bk-burgundy-50:#fdf3f4;
  --bk-burgundy-100:#fbe7e9;
  --bk-burgundy-500:#c8243a;
  --bk-burgundy-600:#a91d31;
  --bk-burgundy-700:#7e1626;
  --bk-burgundy-800:#5a101b;
  --bk-royal-50:#eef3ff;
  --bk-royal-100:#dde7ff;
  --bk-royal-500:#3257e8;
  --bk-royal-600:#1f3fc7;
  --bk-royal-700:#1a339e;
  --bk-royal-800:#152877;
  --bk-royal-900:#0f1c54;
  --bk-ink:#0b0d12;
  --bk-paper:#fafafa;
  --bk-line:#e5e7eb;
  --bk-muted:#6b7280;

  --shadow-premium: 0 20px 60px -20px rgba(15, 28, 84, .25);
  --shadow-glow:    0 30px 80px -20px rgba(200, 36, 58, .35);

  --radius-sm: 10px;
  --radius:    14px;
  --radius-lg: 22px;

  --easing: cubic-bezier(.22,.61,.36,1);
}

/* Reset minimal */
*,*::before,*::after{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-font-smoothing:antialiased; }
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--bk-ink);
  background:#fff;
  line-height:1.6;
  overflow-x:hidden;
}
img,svg,video{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:0; background:none; }
input,select,textarea{ font-family:inherit; }

::selection{ background:var(--bk-burgundy-600); color:#fff; }

h1,h2,h3,h4,h5{
  font-family:'Poppins','Inter',sans-serif;
  font-weight:700;
  letter-spacing:-.02em;
  margin:0 0 .4em;
  line-height:1.15;
}

/* ============== Layout ============== */
.container{ max-width:1240px; margin:0 auto; padding:0 24px; }
.section{ padding:96px 0; position:relative; }
.section-sm{ padding:64px 0; }

.eyebrow{
  font-family:'Montserrat',sans-serif;
  font-size:12px; font-weight:600; letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--bk-burgundy-600);
  display:inline-block;
}
.title-xl{ font-size:clamp(2.4rem,5vw,4.2rem); line-height:1.05; }
.title-lg{ font-size:clamp(2rem,4vw,3.2rem); }
.title-md{ font-size:clamp(1.4rem,2.4vw,2rem); }
.lead{ font-size:1.125rem; color:#3a3f4a; max-width:680px; }
.muted{ color:var(--bk-muted); }
.text-gradient{
  background:linear-gradient(120deg,var(--bk-royal-700) 0%, var(--bk-burgundy-600) 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ============== Loading screen (minimaliste) ============== */
#bk-loader{
  position:fixed; inset:0; z-index:9999;
  background:#fff;
  display:flex; align-items:center; justify-content:center;
  transition: opacity .6s ease, visibility .6s ease;
}
#bk-loader.hidden{ opacity:0; visibility:hidden; pointer-events:none; }
.bk-loader-inner{ position:relative; width:90px; height:90px; }
.bk-loader-logo{
  position:absolute; inset:0; margin:auto; width:48px; height:48px;
  object-fit:contain;
  animation:bk-pulse 1.6s ease-in-out infinite;
}
.bk-loader-ring{
  position:absolute; inset:0; width:90px; height:90px;
  animation:bk-spin 1.4s linear infinite;
}
.bk-loader-ring circle{
  fill:none; stroke:url(#bkGrad); stroke-width:3; stroke-linecap:round;
  stroke-dasharray:90 200; transform-origin:center;
}
/* fallback gradient via CSS pour le ring */
.bk-loader-ring{ filter: drop-shadow(0 4px 14px rgba(26,51,158,.18)); }
.bk-loader-ring circle{ stroke:#a91d31; stroke-dasharray:38 200; }
@keyframes bk-spin{ to{ transform:rotate(360deg);} }
@keyframes bk-pulse{ 0%,100%{ transform:scale(1); opacity:1;} 50%{ transform:scale(.92); opacity:.7;} }

/* ============== Header ============== */
.bk-header{
  position:fixed; top:0; left:0; right:0; z-index:80;
  padding:18px 0;
  transition: background .4s ease, box-shadow .4s ease, padding .4s ease, border-color .4s ease;
  border-bottom:1px solid transparent;
}
.bk-header.scrolled{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:12px 0;
  border-bottom-color:var(--bk-line);
  box-shadow:0 6px 24px -16px rgba(0,0,0,.18);
}
.bk-nav{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.bk-logo{ display:flex; align-items:center; gap:12px; font-family:'Poppins',sans-serif; font-weight:700; }
.bk-logo img{ height:80px; width:auto; }
.bk-logo .name{ font-size:15px; line-height:1.1; }
.bk-logo .name small{ display:block; font-weight:500; font-size:11px; color:var(--bk-muted); letter-spacing:.12em; text-transform:uppercase; }

.bk-menu{ display:flex; align-items:center; gap:6px; list-style:none; margin:0; padding:0; }
.bk-menu a{
  position:relative; padding:10px 14px; font-size:14px; font-weight:500;
  color:var(--bk-ink); border-radius:10px; transition: color .25s ease, background .25s ease;
}
.bk-menu a::after{
  content:""; position:absolute; left:14px; right:14px; bottom:6px; height:2px;
  background:linear-gradient(90deg,var(--bk-royal-700),var(--bk-burgundy-600));
  transform:scaleX(0); transform-origin:right; transition:transform .35s var(--easing);
}
.bk-menu a:hover, .bk-menu a.active{ color:var(--bk-royal-700); }
.bk-menu a:hover::after, .bk-menu a.active::after{ transform:scaleX(1); transform-origin:left; }

.bk-cta{ display:flex; align-items:center; gap:10px; }

.bk-burger{
  display:none; width:42px; height:42px; border-radius:10px;
  border:1px solid var(--bk-line); align-items:center; justify-content:center;
}
.bk-burger span{ width:18px; height:2px; background:var(--bk-ink); position:relative; display:block; transition:.3s; }
.bk-burger span::before,.bk-burger span::after{ content:""; position:absolute; left:0; width:18px; height:2px; background:var(--bk-ink); transition:.3s; }
.bk-burger span::before{ top:-6px; }
.bk-burger span::after{ top:6px; }
.bk-burger.open span{ background:transparent; }
.bk-burger.open span::before{ top:0; transform:rotate(45deg); }
.bk-burger.open span::after{ top:0; transform:rotate(-45deg); }

@media (max-width: 980px){
  .bk-burger{ display:flex; flex-shrink:0; }
  .bk-nav{ gap:12px; }
  .bk-cta{ gap:8px; flex-shrink:0; }
  .bk-cta .btn{ padding:10px 16px; font-size:12px; white-space:nowrap; }
  .bk-menu{
    position:fixed; top:68px; right:12px; left:12px; flex-direction:column; align-items:stretch;
    background:#fff; border:1px solid var(--bk-line); border-radius:16px;
    padding:14px; gap:4px; box-shadow:var(--shadow-premium);
    transform-origin:top right; transform:scale(.96); opacity:0; pointer-events:none;
    transition: transform .3s var(--easing), opacity .3s var(--easing);
    max-height:calc(100dvh - 90px); overflow-y:auto;
  }
  .bk-menu.open{ transform:scale(1); opacity:1; pointer-events:auto; }
  .bk-menu a{ padding:14px 16px; font-size:15px; }
  .bk-cta .btn-ghost{ display:none; }
}

/* ============== Buttons ============== */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 24px; border-radius:999px;
  font-family:'Poppins',sans-serif; font-weight:600; font-size:14px;
  transition: transform .35s var(--easing), background .3s, color .3s, box-shadow .3s, border-color .3s;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--bk-burgundy-600); color:#fff; box-shadow:var(--shadow-glow); }
.btn-primary:hover{ background:var(--bk-burgundy-700); }
.btn-royal{ background:var(--bk-royal-700); color:#fff; }
.btn-royal:hover{ background:var(--bk-royal-800); }
.btn-ghost{ background:#fff; color:var(--bk-ink); border:1px solid var(--bk-line); }
.btn-ghost:hover{ border-color:var(--bk-ink); }
.btn-light{ background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.25); backdrop-filter:blur(10px); }
.btn-light:hover{ background:rgba(255,255,255,.2); }
.btn .arrow{ transition:transform .3s; }
.btn:hover .arrow{ transform:translateX(4px); }

/* ============== Hero (slideshow plein écran centré) ============== */
.hero-slideshow{
  position:relative; min-height:100vh; display:flex; align-items:center; justify-content:center;
  padding:140px 24px 100px; overflow:hidden; color:#fff; text-align:center;
  isolation:isolate;
}
.hero-bg{ position:absolute; inset:0; z-index:-2; }
.hero-bg .hero-slide{
  position:absolute; inset:0; background-size:cover; background-position:center;
  opacity:0; transition: opacity 1.6s ease, transform 8s ease;
  transform:scale(1.08);
}
.hero-bg .hero-slide.is-active{ opacity:1; transform:scale(1); }
/* Fallback dégradés colorés si l'image n'existe pas */
.hero-bg .hero-slide:nth-child(1){ background-color:#0a3d62; }
.hero-bg .hero-slide:nth-child(2){ background-color:#cc8400; }
.hero-bg .hero-slide:nth-child(3){ background-color:#1a339e; }
.hero-bg .hero-slide:nth-child(4){ background-color:#3d3d3d; }
.hero-bg .hero-slide:nth-child(5){ background-color:#7e1626; }
.hero-bg .hero-slide:nth-child(6){ background-color:#143d59; }
.hero-bg .hero-slide:nth-child(7){ background-color:#1a5a32; }
.hero-bg .hero-slide:nth-child(8){ background-color:#0f5c8a; }
.hero-bg .hero-slide:nth-child(9){ background-color:#3a2a59; }
.hero-bg .hero-slide:nth-child(10){ background-color:#5c3a14; }
.hero-bg .hero-slide:nth-child(11){ background-color:#a91d31; }
.hero-bg .hero-slide:nth-child(12){ background-color:#152877; }

.hero-overlay{
  position:absolute; inset:0; z-index:-1;
  background:
    linear-gradient(180deg, rgba(11,13,18,.45) 0%, rgba(11,13,18,.55) 50%, rgba(11,13,18,.85) 100%),
    radial-gradient(800px 500px at 50% 30%, rgba(26,51,158,.25), transparent 70%);
}

.hero-content{ position:relative; z-index:2; max-width:880px; }
.hero-content .eyebrow{ color:#ffd6dc; }
.hero-content h1{ margin-top:18px; color:#fff; }
.hero-content .lead{ margin:18px auto 0; color:rgba(255,255,255,.88); max-width:720px; font-size:1.15rem; }

.text-gradient-light{
  background:linear-gradient(120deg,#7aa3ff 0%, #ff9aa6 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.hero-actions{ margin-top:34px; display:flex; gap:14px; flex-wrap:wrap; justify-content:center; }

.hero-stats{ margin:50px auto 0; display:grid; grid-template-columns:repeat(3,1fr); gap:24px; max-width:560px; }
.hero-stat{ text-align:center; }
.hero-stat .num{
  font-family:'Poppins',sans-serif; font-weight:700; font-size:2.4rem;
  background:linear-gradient(120deg,#fff,#ffd6dc);
  -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1;
}
.hero-stat .lbl{ font-size:13px; color:rgba(255,255,255,.75); margin-top:8px; letter-spacing:.04em; }

.hero-currentlabel{
  position:absolute; bottom:30px; left:50%; transform:translateX(-50%);
  font-family:'Poppins',sans-serif; font-size:12px; letter-spacing:.32em; text-transform:uppercase;
  color:rgba(255,255,255,.7); padding:8px 18px; border:1px solid rgba(255,255,255,.18);
  border-radius:999px; backdrop-filter:blur(10px); background:rgba(255,255,255,.05);
  white-space:nowrap; transition: opacity .3s ease;
}

.hero-scroll{
  position:absolute; bottom:80px; left:50%; transform:translateX(-50%);
  width:28px; height:46px; border:2px solid rgba(255,255,255,.5); border-radius:14px;
  display:flex; justify-content:center; padding-top:8px; z-index:3;
}
.hero-scroll span{
  width:3px; height:8px; background:#fff; border-radius:3px;
  animation: bk-scroll 1.6s ease-in-out infinite;
}
@keyframes bk-scroll{ 0%{ transform:translateY(0); opacity:1;} 100%{ transform:translateY(14px); opacity:0;} }

@media(max-width:768px){
  .hero-slideshow{ padding:110px 18px 80px; min-height: 88vh; }
  .hero-stats{ grid-template-columns:repeat(3,1fr); gap:14px; max-width:none; }
  .hero-stat .num{ font-size:1.7rem; }
  .hero-stat .lbl{ font-size:11px; letter-spacing:0; }
  .hero-currentlabel{ font-size:10px; letter-spacing:.2em; padding:6px 12px; bottom:18px; }
  .hero-scroll{ display:none; }
}
@media(max-width:480px){
  .hero-actions .btn{ flex:1; justify-content:center; padding:13px 18px; font-size:13px; }
}

/* ============== Cards / domaines ============== */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:32px; }
@media(max-width: 980px){ .grid-3{ grid-template-columns:repeat(2,1fr);} .grid-4{ grid-template-columns:repeat(2,1fr);} }
@media(max-width: 640px){ .grid-3, .grid-4, .grid-2{ grid-template-columns:1fr;} }

.card{
  position:relative; padding:28px; border-radius:var(--radius-lg);
  background:#fff; border:1px solid var(--bk-line);
  transition: transform .5s var(--easing), box-shadow .5s, border-color .5s;
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(160deg, rgba(26,51,158,.05), rgba(169,29,49,.05));
  opacity:0; transition:opacity .5s;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-premium); border-color:transparent; }
.card:hover::before{ opacity:1; }
.card > *{ position:relative; z-index:1; }

.card-icon{
  width:56px; height:56px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,var(--bk-royal-700),var(--bk-burgundy-600));
  color:#fff; margin-bottom:18px;
  transition: transform .5s var(--easing);
}
.card:hover .card-icon{ transform:rotate(-6deg) scale(1.05); }
.card h3{ font-size:1.15rem; }
.card p{ color:#4a505c; font-size:.95rem; }
.card .more{
  display:inline-flex; align-items:center; gap:6px; margin-top:14px;
  font-weight:600; font-size:13px; color:var(--bk-royal-700);
}

/* Domain card with image */
.domain-card{
  position:relative; border-radius:var(--radius-lg); overflow:hidden;
  border:1px solid var(--bk-line); background:#fff;
  transition: transform .5s var(--easing), box-shadow .5s;
}
.domain-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-premium); }
.domain-card .cover{ position:relative; aspect-ratio: 16/10; overflow:hidden; background:#0f1c54; }
.domain-card .cover img{ width:100%; height:100%; object-fit:cover; transition: transform 1s var(--easing); opacity:.9; }
.domain-card:hover .cover img{ transform:scale(1.08); }
.domain-card .cover::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 40%, rgba(11,13,18,.65));
}
.domain-card .badge{
  position:absolute; top:14px; left:14px; z-index:2;
  width:42px; height:42px; border-radius:12px; display:flex; align-items:center; justify-content:center;
  background:#fff; color:var(--bk-burgundy-600);
}
.domain-card .body{ padding:22px 22px 24px; }
.domain-card h3{ font-size:1.15rem; margin-bottom:6px; }

/* ============== Project cards ============== */
.project-card{
  position:relative; border-radius:var(--radius-lg); overflow:hidden;
  background:#0b0d12; color:#fff;
  transition: transform .5s var(--easing); aspect-ratio: 4/5;
}
.project-card .img{ position:absolute; inset:0; }
.project-card .img img{ width:100%; height:100%; object-fit:cover; transition: transform 1.2s var(--easing); opacity:.78; }
.project-card:hover .img img{ transform:scale(1.08); opacity:.6; }
.project-card::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(0,0,0,.85));
}
.project-card .body{
  position:absolute; left:0; right:0; bottom:0; padding:24px; z-index:2;
}
.project-card .meta{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:12px; }
.project-card .meta span{
  font-size:11px; padding:5px 10px; border-radius:999px;
  background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.22);
  text-transform:uppercase; letter-spacing:.12em;
}
.project-card h3{ color:#fff; font-size:1.25rem; margin:0; }
.project-card .country{ display:flex; align-items:center; gap:6px; font-size:13px; opacity:.85; margin-top:8px; }

/* ============== Sections diverses ============== */
.section-dark{
  background:linear-gradient(160deg, #0f1c54 0%, #152877 50%, #5a101b 130%);
  color:#fff; position:relative; overflow:hidden;
}
.section-dark::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 40%, transparent 80%);
}
.section-dark .eyebrow{ color:#ff9aa6; }
.section-dark .lead{ color:rgba(255,255,255,.78); }
.section-dark .muted{ color:rgba(255,255,255,.6); }

/* Counters */
.counters{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
@media(max-width:760px){ .counters{ grid-template-columns:repeat(2,1fr);} }
.counter{ text-align:left; }
.counter .num{
  font-family:'Poppins',sans-serif; font-weight:700; font-size:clamp(2.4rem,4.5vw,3.6rem);
  background:linear-gradient(120deg,#fff, #ffd6dc);
  -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1;
}
.counter .lbl{ margin-top:8px; opacity:.85; font-size:14px; letter-spacing:.05em; }

/* Timeline */
.timeline{ position:relative; padding-left:32px; }
.timeline::before{
  content:""; position:absolute; top:0; bottom:0; left:10px; width:2px;
  background:linear-gradient(180deg,var(--bk-royal-700),var(--bk-burgundy-600));
}
.tl-item{ position:relative; padding:6px 0 28px 18px; }
.tl-item::before{
  content:""; position:absolute; left:-28px; top:8px; width:18px; height:18px; border-radius:50%;
  background:#fff; border:3px solid var(--bk-burgundy-600);
  box-shadow:0 0 0 4px rgba(169,29,49,.15);
}
.tl-item .y{ font-family:'Poppins',sans-serif; font-weight:700; color:var(--bk-royal-700); }

/* Marquee partenaires */
.marquee-wrap{ overflow:hidden; mask-image:linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee{ display:flex; gap:64px; animation: bk-marquee 32s linear infinite; width:max-content; }
.marquee .it{ font-family:'Poppins',sans-serif; font-weight:600; font-size:1.4rem; color:#9aa0ad; white-space:nowrap; }
@keyframes bk-marquee{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }

/* Testimonials */
.testimonial{ padding:30px; background:#fff; border:1px solid var(--bk-line); border-radius:var(--radius-lg); position:relative; }
.testimonial::before{
  content:"\201C"; position:absolute; top:-18px; left:24px; font-family:'Poppins'; font-size:90px; line-height:1;
  color:var(--bk-burgundy-600); opacity:.18;
}
.testimonial p{ font-style:italic; color:#3a3f4a; }
.testimonial .who{ display:flex; align-items:center; gap:12px; margin-top:18px; }
.testimonial .av{ width:42px; height:42px; border-radius:50%; background:linear-gradient(135deg,var(--bk-royal-700),var(--bk-burgundy-600)); }
.testimonial .who b{ display:block; }
.testimonial .who small{ color:var(--bk-muted); }

/* Forms */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media(max-width:640px){ .form-grid{ grid-template-columns:1fr; } }
.field{ display:flex; flex-direction:column; gap:6px; }
.field label{ font-size:13px; font-weight:600; color:#2a2f3a; }
.field input, .field select, .field textarea{
  width:100%; padding:14px 16px; border-radius:12px; border:1px solid var(--bk-line);
  background:#fff; font-size:15px; transition: border-color .3s, box-shadow .3s, transform .3s;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--bk-royal-700);
  box-shadow:0 0 0 4px rgba(26,51,158,.12);
}
.field textarea{ resize:vertical; min-height:140px; }
.file-drop{
  display:flex; align-items:center; justify-content:center; gap:10px;
  padding:20px; border:2px dashed var(--bk-line); border-radius:12px;
  cursor:pointer; transition: border-color .3s, background .3s;
}
.file-drop:hover{ border-color:var(--bk-royal-700); background:var(--bk-royal-50); }

.alert{ padding:14px 18px; border-radius:12px; font-size:14px; margin-bottom:16px; }
.alert-success{ background:#ecfdf5; color:#065f46; border:1px solid #a7f3d0; }
.alert-error{ background:#fef2f2; color:#991b1b; border:1px solid #fecaca; }
.alert-info{ background:var(--bk-royal-50); color:var(--bk-royal-800); border:1px solid var(--bk-royal-100); }

/* Page header (interior pages) */
.page-hero{
  position:relative; padding:180px 0 80px;
  background:
    radial-gradient(800px 400px at 80% 10%, rgba(50,87,232,.18), transparent 60%),
    radial-gradient(700px 400px at -10% 30%, rgba(200,36,58,.18), transparent 60%),
    #fff;
  overflow:hidden; border-bottom:1px solid var(--bk-line);
}
.page-hero::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(15,28,84,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,28,84,.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}
.breadcrumb{ font-size:13px; color:var(--bk-muted); margin-bottom:16px; }
.breadcrumb a{ color:var(--bk-royal-700); }

/* CTA band */
.cta-band{
  position:relative; padding:60px; border-radius:24px; overflow:hidden;
  background:linear-gradient(135deg,#0f1c54 0%, #1a339e 60%, #a91d31 130%);
  color:#fff;
}
.cta-band h2{ color:#fff; font-size:clamp(1.6rem,3.2vw,2.6rem); }
.cta-band p{ color:rgba(255,255,255,.82); max-width:620px; }

/* ============== Footer ============== */
.footer{
  background:#070914; color:rgba(255,255,255,.78);
  padding:80px 0 30px; position:relative; overflow:hidden;
}
.footer::before{
  content:""; position:absolute; top:-200px; right:-200px; width:500px; height:500px; border-radius:50%;
  background:radial-gradient(circle, rgba(26,51,158,.35), transparent 60%);
}
.footer::after{
  content:""; position:absolute; bottom:-200px; left:-200px; width:500px; height:500px; border-radius:50%;
  background:radial-gradient(circle, rgba(169,29,49,.3), transparent 60%);
}
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:36px; position:relative; z-index:1; }
@media(max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }
.footer h4{ color:#fff; font-size:14px; letter-spacing:.18em; text-transform:uppercase; margin-bottom:16px; }
.footer a{ display:block; padding:5px 0; color:rgba(255,255,255,.72); transition:color .25s; }
.footer a:hover{ color:#fff; }
.footer .logo-block img{ height:50px; margin-bottom:14px; }
.footer .socials{ display:flex; gap:10px; margin-top:14px; }
.footer .socials a{
  width:38px; height:38px; padding:0; border-radius:10px;
  background:rgba(255,255,255,.06); display:flex; align-items:center; justify-content:center;
  transition: background .3s, transform .3s;
}
.footer .socials a:hover{ background:var(--bk-burgundy-600); transform:translateY(-2px); }
.footer .newsletter{ display:flex; gap:8px; margin-top:14px; }
.footer .newsletter input{
  flex:1; padding:12px 14px; border-radius:10px; background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12); color:#fff; font-size:14px;
}
.footer .newsletter input::placeholder{ color:rgba(255,255,255,.5); }
.footer .newsletter button{ padding:0 18px; border-radius:10px; background:var(--bk-burgundy-600); color:#fff; font-weight:600; }
.footer .copy{
  margin-top:50px; padding-top:24px; border-top:1px solid rgba(255,255,255,.08);
  display:flex; justify-content:space-between; align-items:center; gap:14px;
  font-size:13px; color:rgba(255,255,255,.55); flex-wrap:wrap;
}
.footer .copy-left > div{ padding:0; }
.footer .copy-right{ font-size:13px; color:rgba(255,255,255,.55); }
.footer .copy-right a{
  display:inline; padding:0; color:#fff; font-weight:600; letter-spacing:.04em;
  background:linear-gradient(135deg,#1a339e,#a91d31); -webkit-background-clip:text;
  background-clip:text; -webkit-text-fill-color:transparent; transition:opacity .25s;
}
.footer .copy-right a:hover{ opacity:.8; color:#fff; }

/* ============== Reveal animations ============== */
.reveal{ opacity:0; transform:translateY(28px); transition: opacity .9s var(--easing), transform .9s var(--easing); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }
.reveal-d1{ transition-delay:.08s; }
.reveal-d2{ transition-delay:.16s; }
.reveal-d3{ transition-delay:.24s; }
.reveal-d4{ transition-delay:.32s; }

/* WhatsApp floating */
.whatsapp-float{
  position:fixed; bottom:24px; right:24px; z-index:60;
  width:58px; height:58px; border-radius:50%;
  background:#25d366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 30px rgba(37,211,102,.4);
  transition:transform .3s; animation: floatY 4s ease-in-out infinite;
}
.whatsapp-float:hover{ transform:scale(1.08); }

/* Scroll progress */
.bk-progress{ position:fixed; top:0; left:0; height:3px; width:0; z-index:90;
  background:linear-gradient(90deg,var(--bk-royal-700),var(--bk-burgundy-600));
  transition: width .1s linear; }

/* Misc */
.tag{ display:inline-flex; align-items:center; padding:6px 12px; border-radius:999px; font-size:12px; font-weight:600; background:var(--bk-royal-50); color:var(--bk-royal-800); }
.tag-burgundy{ background:var(--bk-burgundy-50); color:var(--bk-burgundy-700); }
hr.sep{ border:0; height:1px; background:var(--bk-line); margin:40px 0; }

/* Mouse parallax target */
.parallax{ transition: transform .6s var(--easing); }

/* ============== Page Projet (moderne) ============== */
.proj-hero{
  position:relative; min-height:78vh; display:flex; align-items:flex-end;
  padding:160px 0 60px; color:#fff; overflow:hidden;
}
.proj-hero-bg{
  position:absolute; inset:0; background-size:cover; background-position:center;
  transform:scale(1.05); animation: bk-zoomout 14s ease-out forwards; z-index:0;
}
@keyframes bk-zoomout{ to{ transform:scale(1);} }
.proj-hero-overlay{
  position:absolute; inset:0; z-index:1;
  background: linear-gradient(180deg, rgba(11,13,18,.4) 0%, rgba(11,13,18,.55) 50%, rgba(11,13,18,.92) 100%);
}
.proj-hero-content{ position:relative; z-index:2; }
.proj-hero h1{ color:#fff; margin-top:14px; }
.proj-tags{ display:flex; gap:10px; flex-wrap:wrap; margin:12px 0; }
.tag-light{
  background:rgba(255,255,255,.14); color:#fff; border:1px solid rgba(255,255,255,.25); backdrop-filter:blur(8px);
}

.proj-info-bar{ background:#fff; border-bottom:1px solid var(--bk-line); padding:28px 0; position:relative; z-index:3; margin-top:-2px; }
.proj-info-grid{
  display:grid; grid-template-columns:repeat(6, 1fr); gap:18px;
}
@media(max-width:980px){ .proj-info-grid{ grid-template-columns:repeat(3,1fr); } }
@media(max-width:560px){ .proj-info-grid{ grid-template-columns:repeat(2,1fr); } }
.proj-info-cell{
  display:flex; gap:12px; align-items:center;
}
.proj-info-cell .ic{
  width:40px; height:40px; min-width:40px; border-radius:12px;
  background:var(--bk-royal-50); display:flex; align-items:center; justify-content:center;
}
.proj-info-cell .lbl{ font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--bk-muted); }
.proj-info-cell .val{ font-family:'Poppins',sans-serif; font-weight:600; font-size:14px; color:var(--bk-ink); margin-top:2px; }

.proj-body{ display:grid; grid-template-columns: 2fr 1fr; gap:50px; }
@media(max-width:900px){ .proj-body{ grid-template-columns:1fr; } }

.proj-text{ font-size:1.05rem; line-height:1.85; color:#3a3f4a; margin-top:14px; }
.proj-video{ margin-top:30px; border-radius:18px; overflow:hidden; aspect-ratio:16/9; background:#0b0d12; }
.proj-video iframe{ width:100%; height:100%; border:0; }

.proj-side{
  background:#fff; border:1px solid var(--bk-line); border-radius:20px; padding:28px;
  position:sticky; top:100px; box-shadow: 0 18px 40px -28px rgba(15,28,84,.18);
}
.proj-side h3{ font-size:1.05rem; margin-bottom:14px; }
.proj-side-list{ display:flex; flex-direction:column; gap:14px; font-size:14px; }
.proj-side-list .row{
  display:flex; justify-content:space-between; gap:14px; padding-bottom:10px;
  border-bottom:1px dashed var(--bk-line);
}
.proj-side-list .row:last-child{ border-bottom:0; }
.proj-side-list b{ text-align:right; }

/* Galerie mosaïque */
.proj-gallery{
  display:grid; grid-template-columns:repeat(4, 1fr); grid-auto-rows: 200px; gap:12px;
}
@media(max-width:980px){ .proj-gallery{ grid-template-columns:repeat(3,1fr); } }
@media(max-width:640px){ .proj-gallery{ grid-template-columns:repeat(2,1fr); grid-auto-rows: 160px; } }
.proj-gallery-item{
  position:relative; overflow:hidden; border-radius:14px; background:#0f1c54;
  display:block;
}
.proj-gallery-item:nth-child(7n+1){ grid-column: span 2; grid-row: span 2; }
.proj-gallery-item:nth-child(7n+4){ grid-column: span 2; }
@media(max-width:640px){
  .proj-gallery-item:nth-child(7n+1){ grid-column: span 2; grid-row: auto; }
  .proj-gallery-item:nth-child(7n+4){ grid-column: span 2; }
}
.proj-gallery-item img{
  width:100%; height:100%; object-fit:cover; transition: transform 1s var(--easing); opacity:.95;
}
.proj-gallery-item:hover img{ transform:scale(1.05); }
.proj-gallery-item .cap{
  position:absolute; left:14px; right:14px; bottom:12px; color:#fff; font-size:13px; font-weight:500;
  text-shadow:0 2px 8px rgba(0,0,0,.5);
}

@media(max-width:768px){
  .proj-hero{ min-height: 70vh; padding:130px 0 50px; }
  .proj-info-bar{ padding:20px 0; }
  .proj-side{ position:static; padding:22px; }
}

/* ============== Blog ============== */
.blog-layout{ display:grid; grid-template-columns:2fr 1fr; gap:40px; align-items:flex-start; }
.blog-search{ display:flex; gap:10px; margin-bottom:30px; }
.blog-search input{ flex:1; }
.blog-card{ display:grid; grid-template-columns:280px 1fr; gap:24px; margin-bottom:18px; padding:0; overflow:hidden; }
.blog-card-img{
  background:linear-gradient(135deg, var(--bk-royal-900) 0%, var(--bk-burgundy-800) 100%);
  aspect-ratio:4/3; overflow:hidden; position:relative; min-height:180px;
  display:flex; align-items:center; justify-content:center;
}
.blog-card-img img{ width:100%; height:100%; object-fit:cover; position:absolute; inset:0; }
.blog-card-img::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 50%, rgba(11,13,18,.6) 100%);
}
.blog-card-body{ padding:24px 24px 24px 0; }

/* ============== Careers ============== */
.careers-layout{ display:grid; grid-template-columns:1fr 1.4fr; gap:40px; }

/* ============== Contact ============== */
.contact-layout{ display:grid; grid-template-columns:1.3fr 1fr; gap:40px; }
.contact-layout iframe{ width:100%; height:280px; border:0; display:block; }

/* ============== Lightbox ============== */
.bk-lightbox{
  position:fixed; inset:0; z-index:100;
  display:flex; align-items:center; justify-content:center;
}
.lb-backdrop{
  position:absolute; inset:0; background:rgba(11,13,18,.92);
  backdrop-filter:blur(10px); cursor:pointer;
}
.lb-wrap{
  position:relative; z-index:2; width:92vw; height:90vh;
  display:flex; align-items:center; justify-content:center;
}
.lb-frame{
  position:relative; width:100%; height:100%;
  display:flex; align-items:center; justify-content:center;
  padding:60px 20px 80px;
}
.lb-frame img{
  max-width:100%; max-height:100%; object-fit:contain;
  border-radius:8px; box-shadow:0 20px 60px rgba(0,0,0,.4);
}
.lb-close{
  position:absolute; top:16px; right:16px; z-index:3;
  width:44px; height:44px; border-radius:50%;
  background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.2);
  color:#fff; display:flex; align-items:center; justify-content:center;
  transition:background .3s; cursor:pointer;
}
.lb-close:hover{ background:rgba(255,255,255,.25); }
.lb-nav{
  position:absolute; top:50%; transform:translateY(-50%); z-index:3;
  width:48px; height:48px; border-radius:50%;
  background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.2);
  color:#fff; display:flex; align-items:center; justify-content:center;
  transition:background .3s; cursor:pointer;
}
.lb-nav:hover{ background:rgba(255,255,255,.25); }
.lb-prev{ left:12px; transform:translateY(-50%) rotate(180deg); }
.lb-next{ right:12px; }
.lb-caption{
  position:absolute; bottom:56px; left:0; right:0; text-align:center;
  color:rgba(255,255,255,.85); font-size:15px; padding:0 60px; pointer-events:none;
}
.lb-counter{
  position:absolute; bottom:28px; left:0; right:0; text-align:center;
  color:rgba(255,255,255,.55); font-size:13px; letter-spacing:.1em;
}
.lb-progress{
  position:absolute; bottom:0; left:20px; right:20px; height:2px;
  background:rgba(255,255,255,.15); border-radius:2px; overflow:hidden;
}
.lb-progress > div{
  height:100%; width:0%; background:linear-gradient(90deg,var(--bk-royal-700),var(--bk-burgundy-600));
}
.lb-playpause{
  position:absolute; bottom:22px; right:22px; z-index:3;
  width:36px; height:36px; border-radius:50%;
  background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.2);
  color:#fff; display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition:background .3s;
}
.lb-playpause:hover{ background:rgba(255,255,255,.25); }

@media(max-width:768px){
  .lb-frame{ padding:50px 10px 70px; }
  .lb-nav{ width:40px; height:40px; }
  .lb-prev{ left:6px; }
  .lb-next{ right:6px; }
  .lb-close{ top:10px; right:10px; width:38px; height:38px; }
  .lb-caption{ bottom:50px; font-size:13px; padding:0 50px; }
}

/* ============== Ultra Responsive ============== */

/* ── 1200px : large desktop ── */
@media(max-width:1200px){
  .container{ padding:0 20px; }
}

/* ── 980px : tablet ── */
@media(max-width:980px){
  .section{ padding:64px 0; }
  .section-sm{ padding:40px 0; }
  .container{ padding:0 18px; }
  .bk-logo img{ height:38px; }
  .grid-2{ grid-template-columns:1fr; }
  .grid-3{ grid-template-columns:repeat(2, 1fr); }
  .grid-4{ grid-template-columns:repeat(2, 1fr); }
  .counters{ grid-template-columns:repeat(2, 1fr); }
  .cta-band{ padding:32px 24px; border-radius:18px; }
  .cta-band > div{ grid-template-columns:1fr !important; gap:20px !important; }
  .cta-band > div > div:last-child{ justify-content:flex-start !important; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .domain-card .cover{ aspect-ratio:16/9; }
  .blog-layout{ grid-template-columns:1.6fr 1fr; gap:28px; }
  .contact-layout{ grid-template-columns:1fr 1fr; gap:28px; }
  .careers-layout{ grid-template-columns:1fr 1.2fr; gap:28px; }
}

/* ── 768px : small tablet / large phone ── */
@media(max-width:768px){
  .page-hero{ padding:120px 0 48px; }
  .title-xl{ font-size:clamp(1.8rem, 7vw, 2.6rem); }
  .title-lg{ font-size:clamp(1.5rem, 5.5vw, 2rem); }
  .title-md{ font-size:clamp(1.15rem, 4.5vw, 1.5rem); }
  .lead{ font-size:.98rem; }
  .card{ padding:20px; }
  .testimonial{ padding:20px; }
  .grid-2, .grid-3, .grid-4{ grid-template-columns:1fr; }
  .footer{ padding:48px 0 20px; }
  .footer-grid{ grid-template-columns:1fr; gap:28px; }
  .footer .copy{ flex-direction:column; align-items:flex-start; gap:8px; }
  .whatsapp-float{ width:50px; height:50px; bottom:14px; right:14px; }
  .whatsapp-float svg{ width:22px; height:22px; }
  .marquee .it{ font-size:1rem; }
  .marquee{ gap:28px; }
  .section > .container > .cta-band > div{ display:block !important; }
  .domain-card .cover{ aspect-ratio:16/10; }
  .project-card{ aspect-ratio:4/4.2; }
  .counters{ grid-template-columns:repeat(2, 1fr); gap:18px; }

  /* Blog */
  .blog-layout{ grid-template-columns:1fr; }
  .blog-sidebar{ position:static; margin-top:24px; }
  .blog-search{ flex-direction:column; }
  .blog-search input{ width:100%; }
  .blog-search .btn{ justify-content:center; width:100%; }
  .blog-card{ grid-template-columns:1fr; margin-bottom:14px; }
  .blog-card-img{ min-height:200px; }
  .blog-card-body{ padding:18px; }

  /* Careers */
  .careers-layout{ grid-template-columns:1fr; }

  /* Contact */
  .contact-layout{ grid-template-columns:1fr; }
  .contact-layout iframe{ height:220px; }

  /* Timeline */
  .timeline{ padding-left:24px; }
  .tl-item::before{ left:-22px; width:14px; height:14px; }
}

/* ── 640px : phone ── */
@media(max-width:640px){
  .container{ padding:0 16px; }
  .section{ padding:48px 0; }
  .page-hero{ padding:110px 0 40px; }
  .btn{ padding:12px 18px; font-size:13px; gap:8px; }
  .btn .arrow{ display:none; }
  .form-grid{ grid-template-columns:1fr; gap:12px; }
  .project-card{ aspect-ratio:4/4.6; }
  .field input, .field select, .field textarea{ font-size:15px; padding:12px 14px; }
  .file-drop{ padding:16px; font-size:13px; }
  .counter .num{ font-size:2.2rem; }
  .proj-info-grid{ grid-template-columns:repeat(2, 1fr); gap:14px; }
  .proj-gallery{ grid-template-columns:repeat(2, 1fr); grid-auto-rows:150px; }
  .proj-gallery-item:nth-child(7n+1){ grid-column:span 2; grid-row:auto; }
  .proj-gallery-item:nth-child(7n+4){ grid-column:span 2; }
  .testimonial::before{ font-size:60px; top:-10px; }

  /* Blog */
  .blog-card-img{ min-height:180px; }
  .blog-card h3{ font-size:1.1rem; }

  /* Careers */
  .careers-layout .card{ padding:18px; }
}

/* ── 480px : small phone ── */
@media(max-width:480px){
  .container{ padding:0 14px; }
  .section{ padding:40px 0; }
  .title-xl{ font-size:clamp(1.6rem, 8vw, 2.2rem); }
  .title-lg{ font-size:clamp(1.35rem, 6vw, 1.7rem); }
  .title-md{ font-size:clamp(1.1rem, 5vw, 1.35rem); }
  .btn{ padding:11px 16px; font-size:12px; border-radius:999px; }
  .hero-actions .btn{ flex:1; justify-content:center; }
  .card{ padding:16px; border-radius:16px; }
  .card-icon{ width:48px; height:48px; border-radius:12px; }
  .eyebrow{ font-size:11px; letter-spacing:.22em; }
  .domain-card .body{ padding:16px 16px 18px; }
  .domain-card h3{ font-size:1rem; }
  .project-card .body{ padding:18px; }
  .project-card h3{ font-size:1.1rem; }
  .counter .num{ font-size:1.8rem; }
  .counter .lbl{ font-size:12px; }
  .footer .newsletter{ flex-direction:column; }
  .footer .newsletter button{ padding:12px; }
  .proj-hero{ min-height:65vh; padding:120px 0 40px; }
  .proj-info-grid{ grid-template-columns:1fr 1fr; }
  .proj-info-cell .ic{ width:36px; height:36px; min-width:36px; }
  .proj-info-cell .val{ font-size:13px; }
  .proj-side{ padding:18px; border-radius:16px; }
  .proj-gallery{ grid-auto-rows:130px; gap:8px; }
  .proj-gallery-item{ border-radius:10px; }
  .proj-gallery-item:nth-child(7n+1){ grid-column:span 2; }
  .contact-layout iframe{ height:180px; }
  .timeline{ padding-left:20px; }
  .tl-item{ padding:4px 0 22px 14px; }
  .tl-item::before{ left:-18px; width:12px; height:12px; }
  .blog-card-img{ min-height:160px; }
  .blog-card-body{ padding:14px; }
  .blog-search{ gap:8px; margin-bottom:20px; }
  .blog-sidebar .card{ padding:16px; }
  .hero-currentlabel{ bottom:50px; font-size:10px; letter-spacing:.2em; padding:6px 12px; }
}

/* ── 360px : very small phone ── */
@media(max-width:360px){
  .container{ padding:0 12px; }
  .title-xl{ font-size:1.6rem; }
  .btn{ padding:10px 14px; font-size:12px; }
  .project-card{ aspect-ratio:4/5; }
  .hero-stats{ gap:10px; }
  .hero-stat .num{ font-size:1.4rem; }
  .hero-stat .lbl{ font-size:10px; }
  .counter .num{ font-size:1.5rem; }
}

/* Prevent horizontal scroll */
html, body{ max-width:100vw; overflow-x:hidden; }
img, svg, video, iframe{ max-width:100%; }