*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  line-height: 1.55;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% 10%, rgba(94,234,212,.18), transparent 55%),
              radial-gradient(1000px 520px at 85% 15%, rgba(99,102,241,.20), transparent 55%),
              radial-gradient(900px 520px at 75% 90%, rgba(236,72,153,.14), transparent 60%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
::selection { background: rgba(99,102,241,.30); }

/* ---- Theme ---- */
:root{
  --bg: #070A14;
  --bg2:#050816;
  --surface: rgba(255,255,255,.06);
  --surface2: rgba(255,255,255,.09);
  --border: rgba(255,255,255,.12);

  --text: #EEF2FF;
  --muted: rgba(238,242,255,.74);

  --primary: #6366F1;   /* indigo */
  --accent: #22C55E;    /* green */
  --pink:   #EC4899;    /* pink */
  --cyan:   #5EEAD4;    /* cyan */

  --shadow: 0 18px 45px rgba(0,0,0,.45);
  --radius: 18px;

  --container: 1100px;
}

/* ---- Helpers ---- */
.container{
  width: min(var(--container), calc(100% - 36px));
  margin: 0 auto;
}

.muted{ color: var(--muted); }
.small{ font-size: 14px; }
.tiny{ font-size: 12px; opacity: .85; }

.section{ padding: 56px 0; }
.section.alt{
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
}

.section-head{
  margin-bottom: 16px;
}
.section-head h2{
  margin: 0 0 6px;
  font-size: clamp(22px, 2.2vw, 30px);
  letter-spacing: -0.3px;
}
.section-head p{
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

/* ---- Card ---- */
.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.card.soft{
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.05));
  border-color: rgba(255,255,255,.14);
}

/* ---- Buttons ---- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  padding: 12px 16px;
  border-radius: 14px;
  border: 0;
  cursor: pointer;
  font-weight: 800;
  letter-spacing: .2px;

  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--pink));
  transition: transform .15s ease, filter .15s ease, box-shadow .15s ease;
  box-shadow: 0 12px 30px rgba(99,102,241,.25);
}
.btn:hover{ transform: translateY(-1px); filter: brightness(1.05); }
.btn:active{ transform: translateY(0); }

.btn.ghost{
  background: transparent;
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(238,242,255,.92);
  box-shadow: none;
}

.btn.small{
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 800;
}

/* ---- NAV (optionnel) ---- */
.nav-wrap{
  position: sticky;
  top: 0;
  z-index: 50;

  background: rgba(5,8,22,.70);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: .2px;
}

.brand-mark{
  width: 14px;
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--cyan), var(--primary));
  box-shadow: 0 0 0 6px rgba(94,234,212,.12);
}

.menu{
  display: flex;
  align-items: center;
  gap: 14px;
}

.menu a{
  padding: 10px 10px;
  border-radius: 12px;
  color: rgba(238,242,255,.86);
  transition: background .15s ease, color .15s ease;
}
.menu a:hover{
  background: rgba(255,255,255,.06);
  color: rgba(238,242,255,1);
}

/* ---- HERO (optionnel) ---- */
.hero{
  position: relative;
  padding: 62px 0 26px;
}

.hero-bg{
  position: absolute;
  inset: -20px 0 auto 0;
  height: 540px;
  pointer-events: none;
  background:
    radial-gradient(480px 260px at 12% 20%, rgba(94,234,212,.20), transparent 60%),
    radial-gradient(480px 260px at 75% 10%, rgba(99,102,241,.22), transparent 62%),
    radial-gradient(520px 300px at 82% 70%, rgba(236,72,153,.16), transparent 62%);
}

.hero-grid{
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
  align-items: start;
}

.badge{
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(238,242,255,.88);
  font-weight: 800;
  font-size: 13px;
}

h1{
  margin: 14px 0 10px;
  font-size: clamp(34px, 4.6vw, 50px);
  line-height: 1.05;
  letter-spacing: -0.8px;
}

.lead{
  margin: 0;
  color: rgba(238,242,255,.76);
  max-width: 65ch;
}

.hero-cta{
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-kpis{
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.kpi{
  padding: 14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
}
.kpi-n{ font-weight: 950; font-size: 18px; }
.kpi-t{ color: var(--muted); font-size: 12px; }

/* ---- Lists ---- */
.check{
  margin: 0;
  padding-left: 18px;
  color: rgba(238,242,255,.82);
}
.check li{ margin: 8px 0; }

.bullets{
  margin: 0;
  padding-left: 18px;
  color: rgba(238,242,255,.78);
}
.bullets li{ margin: 8px 0; }

/* ---- Tags / chips ---- */
.pills, .chips{ display: flex; flex-wrap: wrap; gap: 8px; }
.pill, .chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  font-weight: 800;
  font-size: 12px;
  color: rgba(238,242,255,.88);
}

/* ---- Grids (cards sections) ---- */
.grid2{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.grid3{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

/* ---- Form ---- */
form label{
  display: block;
  font-weight: 900;
  font-size: 13px;
  color: rgba(238,242,255,.88);
}

input, textarea{
  width: 100%;
  margin-top: 6px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(5,8,22,.55);
  color: var(--text);
  outline: none;
}

input:focus, textarea:focus{
  border-color: rgba(99,102,241,.65);
  box-shadow: 0 0 0 6px rgba(99,102,241,.14);
}

.row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ---- Footer ---- */
.footer{
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(5,8,22,.45);
}
.foot{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 18px 0 22px;
}
.foot-links{ display: flex; gap: 14px; }
.foot-links a{ color: rgba(238,242,255,.78); }
.foot-links a:hover{ color: rgba(238,242,255,1); }

/* ---- Responsive ---- */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-kpis{ grid-template-columns: 1fr; }
}

@media (max-width: 820px){
  .grid3{ grid-template-columns: 1fr; }
  .grid2{ grid-template-columns: 1fr; }
  .row{ grid-template-columns: 1fr; }
  .menu{ display: none; } /* optionnel : menu caché sur mobile */
}

@media (prefers-reduced-motion: reduce){
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}