/* ==========
   Charte (Bleu / Violet / Blanc)
   ========== */
:root{
  --bg: #ffffff;
  --text: #0f172a;         /* slate-900 */
  --muted: #475569;        /* slate-600 */
  --border: rgba(15, 23, 42, .12);

  --primary: #2563eb;      /* blue-600 */
  --secondary: #7c3aed;    /* violet-600 */

  --grad: linear-gradient(90deg, var(--primary), var(--secondary));
  --shadow: 0 12px 30px rgba(2, 6, 23, .10);

  --radius: 16px;
  --container: 1100px;
}

/* Base */
*{ box-sizing: border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; height:auto; }
.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

/* Boutons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding: .85rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 650;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease;
  user-select: none;
}
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active{ transform: translateY(0); box-shadow: none; }

.btn-primary{
  background: var(--grad);
  color: #fff;
}
.btn-ghost{
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.badge{
  display:inline-flex;
  padding: .35rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: .9rem;
}

/* ==========
   Header / Nav
   ========== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.navbar{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 220px;
}
.brand-mark{
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--grad);
  box-shadow: 0 8px 18px rgba(37,99,235,.22);
}
.brand-text{
  display:flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text strong{ font-size: 1rem; }
.brand-text span{ font-size: .9rem; color: var(--muted); }

/* Desktop menu */
.nav-links{
  display:flex;
  align-items:center;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.6);
}
.nav-links a{
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--muted);
  transition: background .12s ease, color .12s ease;
}
.nav-links a:hover{
  background: rgba(124,58,237,.08);
  color: var(--text);
}
.nav-links a.active{
  background: rgba(37,99,235,.10);
  color: var(--text);
}

/* Header actions */
.nav-actions{
  display:flex;
  align-items:center;
  gap: 10px;
}

/* Burger */
.burger{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  gap: 4px;
}
.burger span{
  width: 18px;
  height: 2px;
  background: var(--text);
  display:block;
  border-radius: 99px;
  transition: transform .15s ease, opacity .15s ease;
}

/* Mobile panel */
.mobile-panel{
  display:none;
  padding: 0 0 14px 0;
}
.mobile-panel .panel{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  background: #fff;
}
.mobile-panel a{
  display:block;
  padding: 12px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 650;
}
.mobile-panel a:hover{
  background: rgba(37,99,235,.08);
  color: var(--text);
}
.mobile-panel .panel-actions{
  display:flex;
  gap: 10px;
  margin-top: 10px;
}

/* ==========
   Footer
   ========== */
.site-footer{
  margin-top: 70px;
  border-top: 1px solid var(--border);
  background: #fff;
}
.footer-inner{
  padding: 28px 0;
  display:flex;
  gap: 24px;
  justify-content: space-between;
  flex-wrap: wrap;
}
.footer-col{
  min-width: 220px;
}
.footer-col h3{
  margin: 0 0 10px 0;
  font-size: 1.05rem;
}
.footer-col p, .footer-col a{
  color: var(--muted);
  margin: 0;
}
.footer-links{
  display:flex;
  flex-direction: column;
  gap: 8px;
}
.footer-bottom{
  border-top: 1px solid var(--border);
  padding: 14px 0;
  color: var(--muted);
  font-size: .95rem;
  display:flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a{ color: var(--muted); text-decoration: underline; }

/* ==========
   UI - Sections / Cards / Grid
   ========== */
.section{
  padding: 44px 0;
}
.section h1, .section h2{
  margin: 0 0 10px;
}
.lead{
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 75ch;
}

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

.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.card-media{
  height: 170px;
  background:
    radial-gradient(1200px 300px at -20% -20%, rgba(37,99,235,.22), transparent 45%),
    radial-gradient(900px 250px at 110% -10%, rgba(124,58,237,.22), transparent 45%),
    linear-gradient(180deg, rgba(15,23,42,.02), rgba(15,23,42,.00));
  border-bottom: 1px solid var(--border);
  display:flex;
  align-items:flex-end;
  padding: 14px;
}
.card-media .mini{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card-body{
  padding: 14px;
}
.card-title{
  margin: 0 0 6px;
  font-size: 1.05rem;
}
.card-desc{
  margin: 0 0 12px;
  color: var(--muted);
}

.chips{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 0 12px;
}

.card-actions{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.filterbar{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  margin: 10px 0 18px;
}
.filterbar .btn{
  padding: .6rem .9rem;
}
.btn-filter{
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-filter.active{
  background: rgba(37,99,235,.10);
  border-color: rgba(37,99,235,.22);
}

/* ==========
   Services / Pricing
   ========== */
.pricing{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 14px;
}

.price-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:#fff;
  padding: 18px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.price-card:hover{ transform: translateY(-2px); box-shadow: var(--shadow); }

.price-top{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.price-name{ margin:0; font-size: 1.15rem; }
.price{
  font-weight: 800;
  font-size: 1.35rem;
  line-height:1;
  white-space: nowrap;
}
.price small{
  display:block;
  font-size: .9rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 4px;
}

.list{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li{ margin: 8px 0; }

.highlight{
  border: 1px solid rgba(37,99,235,.25);
  background: radial-gradient(1000px 320px at 0% 0%, rgba(37,99,235,.10), transparent 45%),
              radial-gradient(800px 280px at 100% 0%, rgba(124,58,237,.10), transparent 45%),
              #fff;
  position: relative;
}
.ribbon{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--grad);
  color: #fff;
  font-weight: 750;
  font-size: .85rem;
}

.included{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 14px;
}
.included .box{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background:#fff;
}
.included .box h3{ margin:0 0 6px; }
.included .box p{ margin:0; color: var(--muted); }

.faq{
  display:grid;
  gap: 10px;
  margin-top: 14px;
}
.faq details{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:#fff;
  padding: 12px 14px;
}
.faq summary{
  cursor:pointer;
  font-weight: 750;
}
.faq p{
  margin: 10px 0 0;
  color: var(--muted);
}

/* ==========
   Contact form
   ========== */
.form{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  padding: 18px;
}
.form-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.field{
  display:flex;
  flex-direction: column;
  gap: 6px;
}
.field label{
  font-weight: 700;
}
.field input, .field textarea, .field select{
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  font: inherit;
  outline: none;
  transition: box-shadow .12s ease, border-color .12s ease;
  background: #fff;
}
.field input:focus, .field textarea:focus, .field select:focus{
  border-color: rgba(37,99,235,.35);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}
.field textarea{
  min-height: 140px;
  resize: vertical;
}
.helper{
  color: var(--muted);
  font-size: .95rem;
}
.alert{
  border-radius: var(--radius);
  padding: 12px 14px;
  border: 1px solid var(--border);
  background: #fff;
  margin-bottom: 12px;
}
.alert.ok{
  border-color: rgba(34,197,94,.35);
  background: rgba(34,197,94,.08);
}
.alert.err{
  border-color: rgba(239,68,68,.35);
  background: rgba(239,68,68,.08);
}
.kpi{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}
.kpi .box{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:#fff;
  padding: 14px;
}
.kpi .box strong{
  display:block;
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.kpi .box span{ color: var(--muted); }


/* ==========
   Responsive
   ========== */
@media (max-width: 900px){
  .nav-links{ display:none; }
  .burger{ display:flex; }
  .mobile-panel{ display:block; }
  .nav-actions .btn-ghost{ display:none; } /* optionnel */
}

@media (max-width: 900px){
  .grid-3{ grid-template-columns: 1fr; }
  .card-media{ height: 150px; }
}

@media (max-width: 900px){
  .pricing{ grid-template-columns: 1fr; }
  .included{ grid-template-columns: 1fr; }
}

@media (max-width: 900px){
  .form-grid{ grid-template-columns: 1fr; }
  .kpi{ grid-template-columns: 1fr; }
}