:root{
    /* dark-first — noir / violet / blanc (identité DK Services) */
    --bg:#050507;
    --bg-grad:#0d0912;
    --surface:#120e1a;
    --surface-2:#1a1327;
    --line:rgba(255,255,255,.09);
    --line-strong:rgba(168,85,247,.32);
    --text:#f4f1fa;
    --muted:#a99cc0;
    --faint:#6d6285;
    --accent:#a855f7;       /* violet du logo */
    --accent-deep:#7c3aed;
    --accent-ink:#ffffff;
    --gold:#c99bff;         /* violet clair (accent secondaire) */
    --danger:#ff6b6b;
    --shadow:0 24px 60px -24px rgba(0,0,0,.8);
    --radius:18px;
    --maxw:1080px;
    --ff-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
    --ff-body:"Figtree",system-ui,-apple-system,sans-serif;
    --ff-mono:"JetBrains Mono",ui-monospace,monospace;
  }
  /* Thème sombre unique (identité DK Services) */
  :root{color-scheme:dark}

  *{box-sizing:border-box}
  body{
    margin:0;font-family:var(--ff-body);color:var(--text);
    background:
      radial-gradient(1100px 520px at 82% -8%,color-mix(in srgb,var(--accent) 16%,transparent),transparent 60%),
      linear-gradient(180deg,var(--bg-grad),var(--bg) 38%);
    background-attachment:fixed;
    line-height:1.6;-webkit-font-smoothing:antialiased;
  }
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  h1,h2,h3{font-family:var(--ff-display);font-weight:700;line-height:1.05;text-wrap:balance;margin:0}
  p{margin:0}
  a{color:inherit}
  .eyebrow{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent)}

  /* NAV */
  nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
    background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line)}
  .nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
  .brand{display:flex;align-items:center;gap:11px;font-family:var(--ff-display);font-weight:700;font-size:1.12rem;letter-spacing:-.01em}
  .logo{width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
    background:#050507;border:1px solid var(--line-strong);
    font-family:var(--ff-display);font-weight:700;font-size:1rem;letter-spacing:-.02em;
    box-shadow:0 6px 18px -6px color-mix(in srgb,var(--accent) 55%,transparent)}
  .logo b{color:#fff;font-weight:700}
  .logo i{color:var(--accent);font-style:normal;font-weight:700}
  .nav-links{display:flex;gap:26px;align-items:center;font-size:.92rem;color:var(--muted)}
  .nav-links a{text-decoration:none}
  .nav-links a:hover{color:var(--text)}
  .nav-cta{color:var(--accent)!important;font-weight:600}
  .menu-btn{display:none;background:var(--surface-2);border:1px solid var(--line-strong);color:var(--text);
    border-radius:10px;width:42px;height:42px;cursor:pointer;font-size:1.25rem;line-height:1}

  .btn{display:inline-flex;align-items:center;gap:9px;border:none;cursor:pointer;font-family:var(--ff-body);
    font-weight:600;font-size:.95rem;padding:12px 20px;border-radius:999px;text-decoration:none;transition:.18s transform,.18s box-shadow,.18s background}
  .btn-primary{background:linear-gradient(145deg,var(--accent),var(--accent-deep));color:var(--accent-ink);
    box-shadow:0 10px 26px -10px color-mix(in srgb,var(--accent) 70%,transparent)}
  .btn-primary:hover{transform:translateY(-2px)}
  .btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-strong)}
  .btn-ghost:hover{background:var(--surface-2)}

  /* HERO */
  header{padding:74px 0 54px}
  .hero{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
  @media(max-width:860px){.hero{grid-template-columns:1fr;gap:34px}}
  .hero h1{font-size:clamp(2.5rem,6vw,4.1rem);letter-spacing:-.02em}
  .hero h1 em{font-style:normal;color:var(--accent)}
  .hero-lead{color:var(--muted);font-size:1.12rem;max-width:46ch;margin-top:20px}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
  .hero-meta{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
  .hero-meta div{display:flex;flex-direction:column}
  .hero-meta b{font-family:var(--ff-display);font-size:1.5rem}
  .hero-meta span{font-size:.82rem;color:var(--faint)}

  .hero-card{background:linear-gradient(160deg,var(--surface),var(--surface-2));border:1px solid var(--line);
    border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}
  .hero-card:before{content:"";position:absolute;inset:0;background:
    radial-gradient(340px 180px at 90% 0,color-mix(in srgb,var(--accent) 22%,transparent),transparent 70%);pointer-events:none}
  .shine{display:flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
  .hero-card h3{font-size:1.3rem;margin-top:14px}
  .checklist{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-direction:column;gap:12px}
  .checklist li{display:flex;gap:11px;align-items:flex-start;font-size:.95rem;color:var(--muted)}
  .checklist svg{flex:0 0 auto;margin-top:3px;color:var(--accent)}

  section{padding:56px 0;border-top:1px solid var(--line)}
  .sec-head{max-width:58ch;margin-bottom:34px}
  .sec-head h2{font-size:clamp(1.7rem,3.6vw,2.5rem);letter-spacing:-.02em;margin-top:12px}
  .sec-head p{color:var(--muted);margin-top:14px;font-size:1.05rem}

  /* FORMULES */
  .formules{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  @media(max-width:760px){.formules{grid-template-columns:1fr}}
  .formule{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;display:flex;flex-direction:column}
  .formule.feat{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:var(--shadow)}
  .tag{position:absolute;top:-11px;right:22px;background:linear-gradient(145deg,var(--accent),var(--accent-deep));color:#fff;font-size:.72rem;font-weight:700;
    letter-spacing:.04em;padding:5px 12px;border-radius:999px;font-family:var(--ff-mono)}
  .formule h3{font-size:1.35rem}
  .price{font-family:var(--ff-display);font-size:3rem;font-weight:700;margin:14px 0 2px;letter-spacing:-.02em}
  .price span{font-size:1rem;color:var(--muted);font-weight:500;font-family:var(--ff-body)}
  .formule .dur{font-family:var(--ff-mono);font-size:.8rem;color:var(--faint);letter-spacing:.04em}
  .formule ul{list-style:none;padding:0;margin:20px 0 26px;display:flex;flex-direction:column;gap:11px;flex:1}
  .formule li{display:flex;gap:10px;align-items:flex-start;font-size:.94rem;color:var(--muted)}
  .formule li svg{flex:0 0 auto;margin-top:3px;color:var(--accent)}

  /* STEPS */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
  @media(max-width:760px){.steps{grid-template-columns:1fr 1fr}}
  @media(max-width:460px){.steps{grid-template-columns:1fr}}
  .step{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
  .step .n{font-family:var(--ff-mono);font-size:.8rem;color:var(--accent);letter-spacing:.1em}
  .step h3{font-size:1.08rem;margin:10px 0 8px}
  .step p{font-size:.9rem;color:var(--muted)}

  /* BOOKING DEMO */
  .booking{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
  .booking-top{display:flex;gap:0;border-bottom:1px solid var(--line);background:var(--surface-2)}
  .bstep{flex:1;padding:15px 16px;font-size:.82rem;color:var(--faint);display:flex;align-items:center;gap:9px;border-right:1px solid var(--line)}
  .bstep:last-child{border-right:none}
  .bstep b{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:.72rem;
    background:var(--line);color:var(--muted);font-family:var(--ff-mono)}
  .bstep.on{color:var(--text)}
  .bstep.on b{background:var(--accent);color:var(--accent-ink)}
  .booking-body{padding:28px}
  @media(max-width:760px){.bstep span{display:none}}

  .choose{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  @media(max-width:620px){.choose{grid-template-columns:1fr}}
  .opt{border:1.5px solid var(--line);border-radius:14px;padding:20px;cursor:pointer;transition:.16s;background:var(--surface-2)}
  .opt:hover{border-color:var(--line-strong)}
  .opt.sel{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
  .opt .row{display:flex;justify-content:space-between;align-items:baseline}
  .opt h4{margin:0;font-family:var(--ff-display);font-size:1.1rem}
  .opt .p{font-family:var(--ff-display);font-weight:700;font-size:1.5rem}
  .opt small{color:var(--faint);font-family:var(--ff-mono);font-size:.72rem}

  .cal-wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:24px}
  @media(max-width:720px){.cal-wrap{grid-template-columns:1fr}}
  .cal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
  .cal-head b{font-family:var(--ff-display);font-size:1.05rem}
  .cal-nav{display:flex;gap:6px}
  .cal-nav button{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);color:var(--text);cursor:pointer}
  .grid7{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
  .dow{text-align:center;font-size:.7rem;color:var(--faint);font-family:var(--ff-mono);padding-bottom:4px}
  .day{aspect-ratio:1;border:1px solid transparent;border-radius:9px;display:grid;place-items:center;font-size:.85rem;cursor:pointer;color:var(--text);background:var(--surface-2)}
  .day.off{color:var(--faint);opacity:.35;cursor:not-allowed;background:transparent}
  .day.free:hover{border-color:var(--accent)}
  .day.sel{background:var(--accent);color:var(--accent-ink);font-weight:700}
  .day .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);position:absolute;transform:translateY(12px)}
  .slots{display:flex;flex-direction:column;gap:9px}
  .slots label{font-size:.78rem;color:var(--faint);font-family:var(--ff-mono);letter-spacing:.08em;text-transform:uppercase}
  .slot{border:1px solid var(--line);background:var(--surface-2);border-radius:10px;padding:12px 14px;cursor:pointer;font-size:.9rem;display:flex;justify-content:space-between;align-items:center}
  .slot:hover{border-color:var(--line-strong)}
  .slot.sel{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
  .slot .dur{font-family:var(--ff-mono);font-size:.72rem;color:var(--faint)}

  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  @media(max-width:620px){.form-grid{grid-template-columns:1fr}}
  .field{display:flex;flex-direction:column;gap:6px}
  .field.full{grid-column:1/-1}
  .field label{font-size:.8rem;color:var(--muted);font-weight:600}
  .field label .req{color:var(--accent)}
  .field input,.field textarea,.field select{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;
    padding:12px 13px;color:var(--text);font-family:var(--ff-body);font-size:.95rem}
  .field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
  .upload{grid-column:1/-1;border:1.5px dashed var(--line-strong);border-radius:14px;padding:22px;text-align:center;color:var(--muted);background:var(--surface-2)}
  .upload b{color:var(--text);font-family:var(--ff-display)}
  .upload .req-note{color:var(--accent);font-size:.8rem;font-family:var(--ff-mono);margin-top:6px;display:block}
  .thumbs{display:flex;gap:8px;justify-content:center;margin-top:14px;flex-wrap:wrap}
  .thumb{width:62px;height:46px;border-radius:8px;background:linear-gradient(135deg,var(--surface),var(--line-strong));border:1px solid var(--line);display:grid;place-items:center;color:var(--faint);font-size:.65rem}

  .summary{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-top:20px;display:flex;flex-direction:column;gap:8px}
  .summary .r{display:flex;justify-content:space-between;font-size:.9rem}
  .summary .r span{color:var(--muted)}
  .summary .r b{font-family:var(--ff-body)}
  .summary .total{border-top:1px solid var(--line);padding-top:10px;margin-top:4px}
  .summary .total b{font-family:var(--ff-display);font-size:1.3rem}

  .booking-foot{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:24px;flex-wrap:wrap}
  .booking-foot small{color:var(--faint);font-size:.82rem;max-width:44ch}

  /* notif preview */
  .notif{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
  @media(max-width:760px){.notif{grid-template-columns:1fr}}
  .phone{justify-self:center;width:260px;background:var(--surface);border:1px solid var(--line-strong);border-radius:30px;padding:16px 14px 26px;box-shadow:var(--shadow)}
  .phone .notch{width:90px;height:6px;border-radius:99px;background:var(--line-strong);margin:2px auto 16px}
  .mail{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:14px}
  .mail .from{display:flex;align-items:center;gap:9px;font-size:.8rem;color:var(--muted)}
  .mail .from .av{width:26px;height:26px;border-radius:8px;background:linear-gradient(145deg,var(--accent),var(--accent-deep));color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:.8rem;font-family:var(--ff-display)}
  .mail .sub{font-family:var(--ff-display);font-weight:700;margin:10px 0 8px;font-size:.98rem}
  .mail .ln{font-size:.8rem;color:var(--muted);display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px dashed var(--line)}
  .mail .ln span:first-child{color:var(--faint)}

  footer{border-top:1px solid var(--line);padding:44px 0 60px;color:var(--muted)}
  .foot-in{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
  .foot-in a{color:var(--muted);text-decoration:none;display:block;padding:3px 0}
  .foot-in a:hover{color:var(--text)}
  .foot-col b{color:var(--text);font-family:var(--ff-display);display:block;margin-bottom:8px}

  .demo-note{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.08em;
    text-transform:uppercase;color:var(--gold);border:1px solid color-mix(in srgb,var(--gold) 40%,transparent);
    padding:6px 12px;border-radius:999px;margin-bottom:18px}
  @media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* ===== Ambient bubbles + animations ===== */
.bubbles{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:-1}
.bubble{position:absolute;bottom:-160px;border-radius:50%;
  background:radial-gradient(circle at 32% 30%,rgba(168,85,247,.30),rgba(124,58,237,.06) 70%);
  filter:blur(1px);opacity:.0;animation:rise linear infinite}
@keyframes rise{
  0%{transform:translateY(0) scale(.9);opacity:0}
  12%{opacity:.7}
  85%{opacity:.5}
  100%{transform:translateY(-118vh) translateX(24px) scale(1.05);opacity:0}
}
.hero-card{animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.formule,.step{transition:transform .18s,box-shadow .18s,border-color .18s}
.formule:hover,.step:hover{transform:translateY(-4px)}
.btn-primary{position:relative;overflow:hidden}
.btn-primary:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-120%);transition:transform .6s}
.btn-primary:hover:after{transform:translateX(120%)}

/* ===== Mobile refinements ===== */
@media(max-width:720px){
  .menu-btn{display:grid;place-items:center}
  .nav-links{position:absolute;top:64px;right:14px;left:14px;flex-direction:column;align-items:stretch;gap:4px;
    background:var(--surface);border:1px solid var(--line-strong);border-radius:14px;padding:10px;
    box-shadow:var(--shadow);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:9px;color:var(--text);font-size:1rem}
  .nav-links a:hover{background:var(--surface-2)}
  .nav-cta{background:linear-gradient(145deg,var(--accent),var(--accent-deep));color:#fff!important;text-align:center}
  .wrap{padding:0 16px}
  section{padding:40px 0}
  header{padding:40px 0 30px}
  .btn{padding:13px 20px;font-size:1rem}
  .hero-cta .btn{width:100%;justify-content:center}
  .hero-meta{gap:18px}
  .bstep span{display:inline}
  .booking-body{padding:18px}
  .booking-foot .btn{flex:1;justify-content:center}
}
@media(max-width:420px){
  .hero h1{font-size:2.1rem}
  .price{font-size:2.4rem}
  .bstep{padding:12px 8px;font-size:.72rem}
}
@media(prefers-reduced-motion:reduce){
  .bubble{display:none}
  .hero-card{animation:none}
  .btn-primary:after{display:none}
}

/* ===== Intro bubble burst (on load) ===== */
.intro{position:fixed;inset:0;z-index:9999;pointer-events:none;overflow:hidden;opacity:1;transition:opacity .6s}
.intro.done{opacity:0}
.intro .ib{position:absolute;bottom:-80px;border-radius:50%;
  background:radial-gradient(circle at 30% 26%,rgba(255,255,255,.85) 0%,rgba(255,255,255,.14) 14%,rgba(255,255,255,.04) 42%,rgba(255,255,255,0) 62%);
  border:1px solid rgba(255,255,255,.35);
  box-shadow:inset 0 0 10px rgba(255,255,255,.30),inset 6px -6px 14px rgba(200,180,255,.12),0 0 6px rgba(255,255,255,.14);
  animation-name:introrise;animation-timing-function:linear;animation-fill-mode:forwards}
@keyframes introrise{
  0%{transform:translateY(0) translateX(0) scale(.5);opacity:0}
  10%{opacity:1}
  90%{opacity:.9}
  100%{transform:translateY(-118vh) translateX(12px) scale(1);opacity:0}}

/* Logo bandeau large — tailles adaptées */
nav .brand img{height:40px!important;width:auto}
@media(max-width:720px){nav .brand img{height:30px!important}}
@media(max-width:400px){nav .brand img{height:26px!important}}