/* Anniversaire Scientifique — Design ludique & coloré (fond dark, accents vifs) */
:root{
  --bg0: #070A1A;
  --bg1: #0B1230;
  --surface: rgba(255,255,255,.06);
  --surface2: rgba(255,255,255,.10);
  --line: rgba(255,255,255,.14);

  --ink: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);

  --blue: #3B82F6;
  --teal: #22D3EE;
  --purple: #A855F7;
  --pink: #FB7185;
  --orange: #F59E0B;
  --lime: #22C55E;

  --shadow: 0 18px 70px rgba(0,0,0,.45);
  --shadow2: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --container: 1120px;
  --font: "Nunito", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --display: "Fredoka", "Nunito", system-ui, sans-serif;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 520px at 10% 10%, rgba(168,85,247,.20), transparent 55%),
    radial-gradient(800px 520px at 90% 0%, rgba(34,211,238,.18), transparent 55%),
    radial-gradient(900px 560px at 85% 85%, rgba(245,158,11,.16), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

a{ color: inherit; }
.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.header{
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(7,10,26,.62);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.10);
}

.header__inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand img{ display:block; height:auto; }

.nav{
  display:flex;
  align-items:center;
  gap: 14px;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: .01em;
}

.nav a{
  text-decoration: none;
  padding: 10px 10px;
  border-radius: 999px;
}
.nav a:hover{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
}

.nav__cta{
  background: linear-gradient(135deg, rgba(59,130,246,.25), rgba(34,211,238,.20));
  border: 1px solid rgba(255,255,255,.12);
}

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

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  padding: 12px 16px;
  font-weight: 1000;
  text-decoration: none;
  cursor: pointer;
  color: #06101a;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  box-shadow: var(--shadow2);
}

.btn:hover{ filter: brightness(1.05); }
.btn:active{ transform: translateY(1px); }

.btn--ghost{
  background: transparent;
  color: var(--ink);
  border-color: rgba(255,255,255,.16);
  box-shadow: none;
}

.btn--lg{ padding: 14px 18px; font-size: 15px; }
.btn--full{ width:100%; }

.hero{
  padding: 26px 0 14px;
  position: relative;
  overflow: hidden;
}

.hero__grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 18px;
  align-items: center;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  font-weight: 1000;
  color: rgba(255,255,255,.86);
}

.tag__spark{
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--orange));
  box-shadow: 0 0 0 6px rgba(251,113,133,.10);
}

.hero__copy h1{
  margin: 12px 0 10px;
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.grad{
  background: linear-gradient(135deg, var(--purple), var(--teal), var(--orange));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead{
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
  max-width: 64ch;
}

.hero__chips{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 16px;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 10px 26px rgba(0,0,0,.22);
  font-weight: 900;
  font-size: 14px;
}
.chip img{ width: 16px; height: 16px; filter: invert(1); opacity: .92; }

.hero__actions{ display:flex; gap: 12px; flex-wrap: wrap; }

.trust{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.trust__item{
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 12px 12px;
  border-radius: 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
}
.trust__item img{ width: 18px; height: 18px; filter: invert(1); opacity: .9; }
.trust__item strong{ display:block; font-weight: 1000; }
.trust__item span{ display:block; color: rgba(255,255,255,.70); font-weight: 800; font-size: 13px; }

.hero__visual{ position: relative; padding: 10px; }
.visual-card{
  border-radius: calc(var(--radius) + 10px);
  background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.visual-card img{ width:100%; display:block; height:auto; }

.float{
  position:absolute;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(10,14,40,.70);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 14px 34px rgba(0,0,0,.35);
  min-width: 190px;
}
.float img{ width: 20px; height: 20px; filter: invert(1); opacity: .9; }
.float__t{ font-weight: 1000; }
.float__s{ color: rgba(255,255,255,.70); font-weight: 800; font-size: 13px; }

.float--a{ top: 18px; left: 18px; }
.float--b{ bottom: 18px; right: 18px; }

.confetti{
  position: absolute;
  inset: 0;
  pointer-events:none;
}
.b{
  position:absolute;
  width: 10px; height: 10px;
  border-radius: 4px;
  opacity: .55;
  filter: blur(.0px);
}
.b1{ left: 8%; top: 20%; background: var(--teal); transform: rotate(12deg); }
.b2{ left: 18%; top: 70%; background: var(--orange); transform: rotate(35deg); }
.b3{ left: 40%; top: 12%; background: var(--pink); transform: rotate(8deg); }
.b4{ left: 56%; top: 78%; background: var(--lime); transform: rotate(22deg); }
.b5{ left: 72%; top: 24%; background: var(--purple); transform: rotate(12deg); }
.b6{ left: 86%; top: 64%; background: var(--teal); transform: rotate(40deg); }
.b7{ left: 30%; top: 46%; background: var(--blue); transform: rotate(28deg); }
.b8{ left: 64%; top: 44%; background: var(--orange); transform: rotate(18deg); }

.section{ padding: 46px 0; }
.section--soft{
  background: rgba(255,255,255,.04);
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.section--cta{
  background: radial-gradient(900px 520px at 10% 20%, rgba(59,130,246,.16), transparent 55%),
              radial-gradient(900px 520px at 90% 0%, rgba(168,85,247,.14), transparent 55%),
              rgba(255,255,255,.03);
  border-top: 1px solid rgba(255,255,255,.08);
}

.section__head{ margin-bottom: 18px; display:grid; gap: 6px; }
.section__head h2{
  margin:0;
  font-family: var(--display);
  font-size: 32px;
  letter-spacing: -0.01em;
}
.section__head p{ margin:0; color: var(--muted); font-weight: 800; }

.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card{
  position: relative;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 16px 50px rgba(0,0,0,.25);
  overflow: hidden;
}
.card::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: linear-gradient(135deg, transparent, rgba(255,255,255,.10), transparent);
  opacity: .45;
  pointer-events:none;
}
.card__top{ display:flex; align-items:center; gap: 12px; margin-bottom: 12px; position: relative; }
.card h3{ margin: 0; font-size: 20px; font-weight: 1000; }
.muted{ color: rgba(255,255,255,.70); font-weight: 800; margin: 2px 0 0; }

.pill{
  width: 44px; height: 44px;
  border-radius: 16px;
  display:grid;
  place-items:center;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
}
.pill img{ width: 22px; height: 22px; filter: invert(1); opacity: .95; }

.card--purple .pill{ background: rgba(168,85,247,.18); border-color: rgba(168,85,247,.30); }
.card--teal .pill{ background: rgba(34,211,238,.16); border-color: rgba(34,211,238,.30); }
.card--orange .pill{ background: rgba(245,158,11,.16); border-color: rgba(245,158,11,.30); }

.list{
  margin: 10px 0 14px;
  padding: 0;
  list-style: none;
  display:grid;
  gap: 8px;
  position: relative;
}
.list li{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 900;
  color: rgba(255,255,255,.88);
}
.list img{ width: 16px; height: 16px; filter: invert(1); opacity: .92; }

.price-row{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px dashed rgba(255,255,255,.18);
  margin-bottom: 12px;
  position: relative;
}
.price{ font-weight: 1000; font-size: 18px; }

.card--featured{
  border-color: rgba(34,211,238,.32);
  box-shadow: 0 22px 80px rgba(34,211,238,.12);
  transform: translateY(-4px);
}
.ribbon{
  position:absolute;
  top: 14px;
  right: 14px;
  background: linear-gradient(135deg, var(--pink), var(--orange));
  color: #06101a;
  font-weight: 1000;
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
}

.steps{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 6px;
}

.step{
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 16px 50px rgba(0,0,0,.22);
}

.step__n{
  width: 36px; height: 36px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  font-weight: 1000;
  color: #06101a;
  background: linear-gradient(135deg, var(--orange), var(--pink));
  margin-bottom: 10px;
}
.step h3{ margin: 0 0 6px; font-weight: 1000; }
.step p{ margin: 0; color: var(--muted); font-weight: 800; line-height: 1.6; }

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
.split__card{
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 16px 50px rgba(0,0,0,.22);
}

.quotes{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.quote{
  margin: 0;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 16px 50px rgba(0,0,0,.22);
}
.quote blockquote{
  margin: 0 0 10px;
  font-weight: 1000;
  line-height: 1.55;
}
.quote figcaption{ color: rgba(255,255,255,.68); font-weight: 900; }

.contact{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: start;
}

.contact__copy h2{ margin: 0 0 8px; font-family: var(--display); }
.contact__copy p{ margin: 0 0 14px; color: var(--muted); font-weight: 900; line-height: 1.6; }

.cta-badges{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 14px;
}
.cta-badge{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  font-weight: 1000;
}
.dot2{
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--blue));
}
.c1 .dot2{ background: linear-gradient(135deg, var(--teal), var(--blue)); }
.c2 .dot2{ background: linear-gradient(135deg, var(--purple), var(--pink)); }
.c3 .dot2{ background: linear-gradient(135deg, var(--orange), var(--lime)); }

.faq-mini details{
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  border-radius: 14px;
  padding: 10px 12px;
  margin-bottom: 10px;
}
.faq-mini summary{
  cursor: pointer;
  font-weight: 1000;
}
.faq-mini p{
  margin: 8px 0 0;
  color: rgba(255,255,255,.72);
  font-weight: 900;
  line-height: 1.6;
}

.form{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: calc(var(--radius) + 10px);
  padding: 16px;
  box-shadow: var(--shadow);
}

.form__row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.field{ display:grid; gap: 6px; }
.field span{
  font-weight: 1000;
  font-size: 13px;
  color: rgba(255,255,255,.86);
}
.field input,
.field textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  outline: none;
  font-family: var(--font);
  font-weight: 900;
  color: rgba(255,255,255,.92);
  background: rgba(6,16,26,.35);
}
.field input::placeholder, .field textarea::placeholder{ color: rgba(255,255,255,.55); }
.field input:focus, .field textarea:focus{
  border-color: rgba(34,211,238,.40);
  box-shadow: 0 0 0 4px rgba(34,211,238,.14);
}

.legal{
  margin: 10px 0 0;
  color: rgba(255,255,255,.62);
  font-weight: 800;
  font-size: 12.5px;
  line-height: 1.5;
}

.footer{
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(7,10,26,.55);
  padding: 18px 0;
}
.footer__inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.sep{ margin: 0 8px; color: rgba(255,255,255,.35); }
.foot-muted{ color: rgba(255,255,255,.70); font-weight: 900; }
.footer a{ color: rgba(255,255,255,.78); font-weight: 900; text-decoration: none; }
.footer a:hover{ text-decoration: underline; }

@media (max-width: 1000px){
  .nav{ display:none; }
  .hero__grid{ grid-template-columns: 1fr; }
  .trust{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
  .quotes{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
  .form__row{ grid-template-columns: 1fr; }
  .float--a{ left: 12px; top: 12px; }
  .float--b{ right: 12px; bottom: 12px; }
}