/* === ALX Solutions — Styles === */
:root{
  --bg:#0b1e3a;
  --bg-2:#0f2446;
  --primary:#0f6fff;
  --text:#0e1726;
  --muted:#6b7280;
  --card:#ffffff;
  --alt:#f7fafc;
  --radius:16px;
  --shadow: 0 10px 30px rgba(2,12,27,.08);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:#fff;
}

.container{
  width:min(1100px, 92%);
  margin-inline:auto;
}

.site-header{
  position:sticky; top:0; z-index:20;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(150%) blur(8px);
  box-shadow: 0 1px 0 rgba(2,12,27,.06);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 0;
}
.nav a{
  margin-left:16px; text-decoration:none; color:var(--text); font-weight:600;
}
.nav .btn{margin-left:20px}

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

.hero{
  background: radial-gradient(1200px 500px at 20% -10%, var(--primary) 0%, var(--bg) 45%, var(--bg-2) 100%);
  color:white;
  padding:72px 0 48px;
  position:relative;
  overflow:hidden;
}
.hero-inner{
  padding: 28px 0 32px;
}
.hero h1{font-size: clamp(32px, 6vw, 56px); margin: 0 0 8px}
.slogan{font-size: clamp(18px, 3.2vw, 24px); margin:0 0 10px; opacity:.95}
.sub{opacity:.9; max-width: 60ch}
.wave{
  position:absolute; inset:auto 0 0 0; height:60px;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 80%);
}

.section{ padding: 56px 0 }
.section.alt{ background: var(--alt) }

.grid-2{
  display:grid; gap:24px;
  grid-template-columns: 1fr;
}
@media (min-width: 880px){
  .grid-2{ grid-template-columns: 1.2fr .8fr }
}

.cards{
  display:grid; gap:20px;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  margin-top:18px;
}

.card{
  background:var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:20px;
}

.card.highlight{border:1px solid rgba(15,111,255,.15)}

.checklist{list-style:none; padding:0; margin:8px 0 0}
.checklist li{padding-left:26px; position:relative; margin:8px 0}
.checklist li::before{
  content:"✓"; position:absolute; left:0; top:0; color:var(--primary); font-weight:700
}

.form .field{display:flex; flex-direction:column; margin:10px 0}
.form input, .form textarea{
  border:1px solid #e5e7eb; border-radius:12px; padding:12px 14px; outline:0;
  font:inherit; background:#fff;
}
.form input:focus, .form textarea:focus{ border-color: var(--primary); box-shadow:0 0 0 3px rgba(15,111,255,.15) }

.cta, .cta-center{ margin-top:16px }
.cta-center{ text-align:center }

.btn{
  display:inline-block; text-decoration:none;
  padding:12px 18px; border-radius:999px;
  font-weight:700; letter-spacing:.2px;
  border:2px solid transparent;
  transition: transform .02s ease, box-shadow .2s ease, background .2s ease;
  box-shadow: var(--shadow);
}
.btn:hover{ transform: translateY(-1px) }
.btn:active{ transform: translateY(0) }

.btn-primary{ background:var(--primary); color:#fff }
.btn-primary:hover{ box-shadow:0 12px 30px rgba(15,111,255,.35) }

.btn-outline{ border-color:rgba(15,111,255,.4); color:var(--primary) }
.btn-outline:hover{ background: rgba(15,111,255,.06) }

.site-footer{
  background:#0e1116; color:#c9d1d9;
  padding:24px 0; text-align:center;
}

.muted{ color: var(--muted) }

/* === Personnalisation ALX === */

/* Header : fond semi-bleu, survol souligné */
.site-header{
  background:rgba(15,111,255,0.1);
  backdrop-filter: blur(10px);
}
.nav a{
  position:relative;
}
.nav a::after{
  content:''; position:absolute; left:0; bottom:-4px;
  width:0; height:2px; background:var(--primary);
  transition:width .3s ease;
}
.nav a:hover::after{ width:100% }

/* Hero : accent de lumière + dégradé bleu foncé */
.hero{
  background: radial-gradient(1200px 500px at 30% -10%, #1a57ff 0%, #0b1e3a 60%, #081830 100%);
  color:#fff;
  text-shadow: 0 2px 4px rgba(0,0,0,.4);
}

/* Boutons : effet lumineux */
.btn-primary{
  background: linear-gradient(135deg, #1a57ff 0%, #0f6fff 80%);
  box-shadow:0 8px 25px rgba(15,111,255,.3);
}
.btn-primary:hover{
  box-shadow:0 12px 30px rgba(15,111,255,.45);
}

/* Cartes : survol doux */
.card:hover{
  transform:translateY(-3px);
  box-shadow:0 10px 25px rgba(15,111,255,.15);
  transition:all .3s ease;
}

/* Formulaire contact : fond légèrement bleuté et focus plus marqué */
.form input, .form textarea{
  background:rgba(255,255,255,.95);
  border:1px solid #d0d7e2;
}
.form input:focus, .form textarea:focus{
  border-color:#1a57ff;
  box-shadow:0 0 0 4px rgba(26,87,255,.25);
}

/* Footer : bleu nuit avec liseré clair */
.site-footer{
  background:linear-gradient(180deg, #0b1e3a 0%, #081830 100%);
  border-top:1px solid rgba(255,255,255,.1);
}
.site-footer p{ color:#cfd9ef }