/* ==========================================================================
   UBINAIR — style.css
   Palette : Encre #0D1330 · Ciel #3E8BFF · Altitude #6FB4FF · Nuage #F5F7FB
   Typo    : Space Grotesk (display) · Inter (texte)
   ========================================================================== */

:root{
  --encre:#0D1330;
  --encre-2:#151D42;
  --ciel:#3E8BFF;
  --ciel-fonce:#1F6FE0;
  --altitude:#6FB4FF;
  --nuage:#F5F7FB;
  --blanc:#FFFFFF;
  --brume:#8A94B8;
  --ligne:#E3E8F4;
  --ok:#19A974;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 8px 30px rgba(13,19,48,.08);
  --shadow-lg:0 18px 60px rgba(13,19,48,.14);
  --font-display:"Space Grotesk","Inter",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --maxw:1140px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--encre);
  background:var(--blanc);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ciel-fonce)}
a:focus-visible,button:focus-visible{outline:3px solid var(--ciel);outline-offset:3px;border-radius:4px}

h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;margin:0 0 .6em;letter-spacing:-.015em}
h1{font-size:clamp(2.1rem,5.2vw,3.4rem);font-weight:700}
h2{font-size:clamp(1.6rem,3.6vw,2.35rem);font-weight:700}
h3{font-size:1.3rem;font-weight:600}
p{margin:0 0 1em}
.lead{font-size:1.15rem;color:#3A4266;max-width:44rem}

.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{padding:76px 0}
.section-alt{background:var(--nuage)}
.eyebrow{
  display:inline-block;font-family:var(--font-display);font-size:.8rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ciel-fonce);
  background:rgba(62,139,255,.1);padding:.35em 1em;border-radius:999px;margin-bottom:1em;
}
.center{text-align:center}
.center .lead{margin-inline:auto}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--ligne);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.35rem;color:var(--encre);text-decoration:none}
.brand svg{flex:none}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--encre);text-decoration:none;font-weight:500;font-size:.98rem}
.nav-links a:hover{color:var(--ciel-fonce)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--encre);margin:5px 0;transition:.2s}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;justify-content:center;
  font-family:var(--font-display);font-weight:600;font-size:1rem;
  padding:.85em 1.7em;border-radius:999px;text-decoration:none;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;border:2px solid transparent;
}
.btn-primary{background:var(--ciel);color:#fff;box-shadow:0 6px 20px rgba(62,139,255,.35)}
.btn-primary:hover{background:var(--ciel-fonce);transform:translateY(-2px)}
.btn-ghost{border-color:var(--ligne);color:var(--encre);background:#fff}
.btn-ghost:hover{border-color:var(--ciel);color:var(--ciel-fonce)}
.btn-light{background:#fff;color:var(--encre)}
.btn-light:hover{transform:translateY(-2px)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,var(--encre) 0%,var(--encre-2) 55%,#1B2B6B 100%);
  padding:96px 0 110px;
}
.hero .eyebrow{background:rgba(255,255,255,.12);color:var(--altitude)}
.hero h1{color:#fff;max-width:15em}
.hero .lead{color:#C6CEE8}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:1.8em}
.hero-note{margin-top:1.1em;font-size:.9rem;color:#93A0CB}

/* Signature : trajectoire de vol */
.flightpath{position:absolute;inset:0;pointer-events:none;opacity:.5}
.flightpath path{fill:none;stroke:var(--altitude);stroke-width:2;stroke-dasharray:2 10;stroke-linecap:round}
.flightpath circle{fill:var(--altitude)}

/* ---------- Cartes audiences ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:44px}
.audience-card{
  position:relative;display:block;background:#fff;color:var(--encre);text-decoration:none;
  border:1px solid var(--ligne);border-radius:var(--radius-lg);padding:34px 30px;
  box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease;
}
.audience-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.audience-card .tag{font-family:var(--font-display);font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--ciel-fonce)}
.audience-card h3{margin-top:.5em;font-size:1.45rem}
.audience-card p{color:#4A5378;margin-bottom:1.4em}
.audience-card .arrow{font-family:var(--font-display);font-weight:600;color:var(--ciel-fonce)}

/* ---------- Grilles génériques ---------- */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:44px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:28px;margin-top:44px}
.card{
  background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);
  padding:30px 28px;box-shadow:var(--shadow);
}
.card h3{display:flex;align-items:center;gap:.5em}
.card .ico{
  flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(62,139,255,.12);color:var(--ciel-fonce);font-size:1.2rem;
}
.card p{color:#4A5378;margin:0}

/* ---------- Process ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px;margin-top:48px;counter-reset:step}
.step{position:relative;background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);padding:30px 26px;box-shadow:var(--shadow)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--font-display);font-weight:700;font-size:.95rem;color:#fff;
  background:var(--ciel);width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;margin-bottom:16px;box-shadow:0 6px 16px rgba(62,139,255,.4);
}
.step p{color:#4A5378;margin:0}

/* ---------- Vidéo ---------- */
.video-shell{max-width:860px;margin:44px auto 0}
.video-frame{
  position:relative;aspect-ratio:16/9;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(150deg,var(--encre),#1B2B6B);box-shadow:var(--shadow-lg);
}
.video-frame video,.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:cover}
.video-placeholder{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;color:#C6CEE8;text-align:center;padding:24px;
}
.video-placeholder .play{
  width:74px;height:74px;border-radius:50%;background:var(--ciel);display:grid;place-items:center;
  box-shadow:0 10px 30px rgba(62,139,255,.5);
}
.video-placeholder .play svg{margin-left:5px}

/* ---------- Logos clients ---------- */
.logos{margin-top:40px}
.logos-title{text-align:center;color:var(--brume);font-family:var(--font-display);font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:22px}
.logos-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:34px}
.logos-row img{height:56px;width:auto;filter:grayscale(1);opacity:.65;transition:.2s}
.logos-row img:hover{filter:none;opacity:1}

/* ---------- Chiffres ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;margin-top:44px;text-align:center}
.stat{background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);padding:30px 18px;box-shadow:var(--shadow)}
.stat .num{font-family:var(--font-display);font-weight:700;font-size:clamp(2rem,4.5vw,2.9rem);color:var(--ciel-fonce)}
.stat .label{color:#4A5378;font-size:.98rem}

/* ---------- Stack ---------- */
.stack-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:36px}
.stack-pill{
  font-family:var(--font-display);font-weight:600;font-size:.95rem;color:var(--encre);
  background:#fff;border:1px solid var(--ligne);border-radius:999px;padding:.55em 1.25em;box-shadow:var(--shadow);
}

/* ---------- Témoignages ---------- */
.testimonials{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:44px}
.tcard{background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);padding:28px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px}
.tcard blockquote{margin:0;color:#3A4266;font-size:1rem}
.tcard .stars{color:#F5A623;letter-spacing:2px;font-size:.95rem}
.tcard footer{display:flex;align-items:center;gap:12px;margin-top:auto}
.tcard footer img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.tcard .who strong{display:block;font-family:var(--font-display);font-size:.98rem}
.tcard .who span{color:var(--brume);font-size:.88rem}

/* ---------- Pricing ---------- */
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:26px;margin-top:48px;align-items:stretch}
.price-card{
  position:relative;background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);
  padding:34px 30px;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.price-card.featured{border:2px solid var(--ciel);box-shadow:var(--shadow-lg)}
.badge-pop{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--ciel);color:#fff;font-family:var(--font-display);font-weight:600;font-size:.78rem;
  letter-spacing:.08em;text-transform:uppercase;padding:.4em 1.2em;border-radius:999px;white-space:nowrap;
}
.price-card h3{font-size:1.2rem}
.price{font-family:var(--font-display);font-weight:700;font-size:2.5rem;margin:.1em 0}
.price small{font-size:.9rem;font-weight:500;color:var(--brume)}
.price-desc{color:#4A5378;min-height:3.2em}
.price-card ul{list-style:none;margin:1.2em 0 1.6em;padding:0;display:grid;gap:.65em}
.price-card li{display:flex;gap:.6em;align-items:flex-start;color:#3A4266;font-size:.98rem}
.price-card li::before{content:"✓";color:var(--ok);font-weight:700;flex:none}
.price-card .btn{margin-top:auto}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:44px auto 0}
.faq details{border:1px solid var(--ligne);border-radius:var(--radius);background:#fff;margin-bottom:12px;box-shadow:var(--shadow)}
.faq summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:var(--font-display);font-weight:600;font-size:1.05rem;padding:18px 22px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--ciel-fonce);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-body{padding:0 22px 20px;color:#4A5378}

/* ---------- Calendrier ---------- */
.calendar-wrap{margin-top:40px;background:#fff;border:1px solid var(--ligne);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}
.calendar-wrap iframe{display:block;width:100%;height:640px;border:0}
.calendar-points{list-style:none;padding:0;margin:1.2em auto 0;max-width:34rem;display:grid;gap:.5em;text-align:left}
.calendar-points li{display:flex;gap:.6em}
.calendar-points li::before{content:"→";color:var(--ciel-fonce);font-weight:700}

/* ---------- CTA final ---------- */
.cta-final{
  background:linear-gradient(150deg,var(--encre),#1B2B6B);color:#fff;text-align:center;
  border-radius:var(--radius-lg);padding:64px 34px;position:relative;overflow:hidden;
}
.cta-final h2{color:#fff}
.cta-final p{color:#C6CEE8;max-width:38rem;margin:0 auto 1.6em}

/* ---------- Footer ---------- */
.site-footer{background:var(--encre);color:#AEB8D9;padding:56px 0 34px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:.9em}
.site-footer a{color:#AEB8D9;text-decoration:none}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.55em}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.9rem}
.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:#fff;text-decoration:none;margin-bottom:14px}

/* ---------- WhatsApp flottant ---------- */
.whatsapp-fab{
  position:fixed;right:20px;bottom:20px;z-index:70;width:58px;height:58px;border-radius:50%;
  background:#25D366;display:grid;place-items:center;box-shadow:0 10px 26px rgba(0,0,0,.25);
  transition:transform .15s ease;
}
.whatsapp-fab:hover{transform:scale(1.08)}

/* ---------- Page légale ---------- */
.legal{max-width:820px}
.legal h2{margin-top:2em;font-size:1.5rem}
.legal h3{margin-top:1.6em;font-size:1.15rem}
.legal p,.legal li{color:#3A4266;font-size:.98rem}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--ligne);
    flex-direction:column;align-items:flex-start;padding:20px 22px;gap:18px;display:none;box-shadow:var(--shadow-lg);
  }
  .nav-links.open{display:flex}
  .calendar-wrap iframe{height:820px}
}