/* AirPG V1.4 - Styles principaux */

/* Variables de thème */
:root{
  --void:#100b08;
  --void-2:#181009;
  --panel:#20140d;
  --panel-2:#2a1a10;
  --wine:#6e1f27;
  --wine-deep:#4a151b;
  --gold:#c9a227;
  --gold-bright:#e8c468;
  --ember:#a04a35;
  --parchment:#ecdfc2;
  --parchment-dim:#b7a789;
  --parchment-faint:#9c8e74;
  --line:rgba(201,162,39,0.22);
  --shadow-deep: 0 30px 60px -20px rgba(0,0,0,0.7);
}

/* Reset et base */
*{box-sizing:border-box;}
html{
  scroll-behavior:smooth;
  scroll-snap-type:y proximity;
}
body{
  margin:0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -10%, rgba(110,31,39,0.28), transparent 60%),
    radial-gradient(ellipse 100% 60% at 85% 100%, rgba(110,31,39,0.18), transparent 55%),
    var(--void);
  color:var(--parchment);
  font-family:'Crimson Text', Georgia, serif;
  font-size:18px;
  line-height:1.65;
  overflow-x:hidden;
}

/* Typographie */
h1,h2,h3,.eyebrow,.btn,.ribbon__seal span,.logo-word{
  font-family:'Cinzel', 'Times New Roman', serif;
}
h1,h2,h3{
  margin:0 0 .5em 0;
  color:var(--parchment);
  letter-spacing:.02em;
  font-weight:700;
}
a{color:var(--gold-bright);}
p{margin:0 0 1em 0;}
::selection{background:var(--wine); color:var(--parchment);}

/* Filtre texture vieillée */
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  z-index:1;
  opacity:.05;
  background-image:
    repeating-linear-gradient(0deg, #fff 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, #fff 0 1px, transparent 1px 3px);
  mix-blend-mode:overlay;
}

.eyebrow{
  display:inline-block;
  font-size:.72rem;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--gold);
  font-weight:600;
  margin-right:-.28em;
  margin-bottom:1.1em;
  opacity:.9;
}

/* Layout / chapitres */
main{position:relative; z-index:2;}
.chapter{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:7rem 8vw;
  position:relative;
  scroll-snap-align:start;
  border-bottom:1px solid var(--line);
}
.chapter > .inner{max-width:900px; margin:0 auto; width:100%;}
.chapter--compact{min-height:auto; padding:6rem 8vw;}

.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .8s ease, transform .8s ease;
}
.reveal.is-visible{opacity:1; transform:none;}

/* Hero */
.chapter--hero{
  align-items:center;
  text-align:center;
  background:
    radial-gradient(circle at 18% 30%, rgba(201,162,39,0.10), transparent 45%),
    transparent;
}
.hero-brand{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:1.2rem;
  margin-bottom:1rem;
}
.logo-emblem{
  width:104px; height:104px;
  border-radius:50%;
  flex:none;
  filter:drop-shadow(0 0 22px rgba(201,162,39,.35));
}
.banner-frame{
  width:100%;
  max-width:900px;
  margin:0 auto 2.2rem auto;
  padding:.5rem;
  border:1px solid var(--line);
  border-radius:8px;
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  box-shadow:var(--shadow-deep);
}
.banner-frame img{
  display:block;
  width:100%;
  height:auto;
  border:1px solid rgba(201,162,39,.15);
  border-radius:5px;
}
.logo-word{
  font-size:clamp(3.2rem, 9vw, 6rem);
  font-weight:900;
  letter-spacing:.06em;
  line-height:1;
  background:linear-gradient(180deg, var(--gold-bright), var(--gold) 55%, var(--ember) 130%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:.25em;
  filter:drop-shadow(0 0 26px rgba(201,162,39,.25));
}
.hero-brand .logo-word{margin-bottom:0;}
.tagline{
  font-family:'Crimson Text', serif;
  font-style:italic;
  font-size:clamp(1.2rem, 2.4vw, 1.55rem);
  color:var(--parchment);
  margin-top:2.25rem;
  margin-bottom:0;
}
.hero-cta{display:flex; flex-wrap:wrap; gap:1rem; margin-top:1.6rem; justify-content:center;}
.hero-desc{
  max-width:56ch;
  margin-left:auto;
  margin-right:auto;
  margin-top:1.75rem;
  text-align:center;
}
.scroll-hint{
  position:absolute; bottom:2.4rem; left:50%; transform:translateX(-50%);
  font-size:.72rem; letter-spacing:.2em; text-transform:uppercase;
  color:var(--parchment-faint);
  display:flex; align-items:center; gap:.6em;
}
.scroll-hint .arrow{display:inline-block; animation:bob 2.2s ease-in-out infinite;}
@keyframes bob{0%,100%{transform:translateY(0);}50%{transform:translateY(6px);}}

/* Boutons */
.btn{
  display:inline-block;
  padding:.85em 1.8em;
  font-size:.82rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  font-weight:600;
  text-decoration:none;
  border-radius:4px;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
  border:1px solid transparent;
}
.btn--gold{
  background:linear-gradient(180deg, var(--gold-bright), var(--gold));
  color:var(--void);
  box-shadow:0 10px 24px -8px rgba(201,162,39,.45);
}
.btn--gold:hover{transform:translateY(-2px); box-shadow:0 14px 30px -8px rgba(201,162,39,.6);}
.btn--ghost{
  background:transparent;
  color:var(--parchment);
  border-color:var(--line);
}
.btn--ghost:hover{border-color:var(--gold); color:var(--gold-bright); transform:translateY(-2px);}
.btn:focus-visible,
.ribbon__seal:focus-visible{
  outline:2px solid var(--gold-bright);
  outline-offset:3px;
}
.btn--lg{padding:1.1em 2.4em; font-size:.9rem;}

/* Concept / info grid */
.lead{max-width:62ch; color:var(--parchment-dim); font-size:1.12rem; margin:0 auto; text-align:center;}
.info-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(210px, 1fr));
  gap:1.4rem;
  margin-top:2.4rem;
}
.info-card{
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  border:1px solid var(--line);
  padding:1.6rem 1.5rem;
  position:relative;
  border-radius:14px;
  overflow:hidden;
}
.info-card::before{
  content:"";
  position:absolute; top:0; left:0; width:100%; height:2px;
  background:linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity:.7;
}
.info-card h3{font-size:.95rem; letter-spacing:.08em; color:var(--gold-bright); margin-bottom:.5em; text-align:center;}
.info-card p{color:var(--parchment-dim); font-size:.98rem; margin:0; text-align:center;}
.info-card .big{font-family:'Cinzel',serif; font-size:1.5rem; color:var(--parchment); display:block; margin-bottom:.2em; text-align:center;}

/* Formules */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));
  gap:1.6rem;
  margin-top:2.6rem;
}
.formule-card{
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  border:1px solid var(--line);
  padding:1.9rem 1.7rem 1.7rem;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
  border-radius:14px;
}
.formule-card::after{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(circle at 90% -10%, rgba(201,162,39,.14), transparent 55%);
  pointer-events:none;
}
.formule-icon{
  width:38px; height:38px;
  margin-bottom:1.1rem;
  color:var(--gold);
}
.formule-card h3{font-size:1.15rem; margin-bottom:.15em; text-align:center;}
.formule-sub{color:var(--parchment-faint); font-size:.85rem; font-style:italic; margin-bottom:.9em; text-align:center;}
.formule-desc{color:var(--parchment-dim); font-size:.96rem; margin-bottom:1.2em; text-align:center;}
.formule-meta{
  list-style:none; padding:0; margin:0 0 1.4em 0;
  font-size:.88rem; color:var(--parchment-dim);
  display:flex; flex-direction:column; gap:.4em;
  border-top:1px solid var(--line);
  padding-top:.9em;
}
.formule-meta li{display:flex; justify-content:space-between; gap:1em;}
.formule-meta span:first-child{color:var(--parchment-faint);}
.formule-price{
  margin-top:auto;
  font-family:'Cinzel',serif;
  font-size:1.6rem;
  color:var(--gold-bright);
  font-weight:700;
  text-align:center;
}
.formule-price small{
  font-family:'Crimson Text',serif;
  font-size:.6rem;
  color:var(--parchment-faint);
  text-transform:uppercase;
  letter-spacing:.15em;
  display:block;
  font-weight:400;
  margin-top:.2em;
}
.formule-card--soon{
  filter:grayscale(1);
  opacity:.55;
}
.formule-card--soon::after{display:none;}
.soon-badge{
  position:absolute; top:1.1rem; right:1.1rem;
  font-family:'Cinzel',serif;
  font-size:.62rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--parchment-dim);
  border:1px solid var(--parchment-faint);
  padding:.35em .7em;
  border-radius:2px;
}

/* Prerequis */
.checklist{
  list-style:none; margin:2rem auto 0 auto; padding:0;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:1.1rem;
  max-width:900px;
}
.checklist li{
  display:flex; gap:.9em; align-items:flex-start;
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  border:1px solid var(--line);
  border-radius:10px;
  padding:1rem 1.1rem;
  color:var(--parchment-dim);
  font-size:.98rem;
}
.checklist li svg{flex:0 0 20px; width:20px; height:20px; margin-top:.2em; color:var(--gold);}

/* Contact */
.chapter--contact{align-items:center; text-align:center;}
.contact-desc{max-width:56ch; color:var(--parchment-dim); font-size:1.08rem; margin:0 auto;}
.contact-info{
  display:flex; flex-wrap:wrap; gap:.9rem 2.2rem; justify-content:center;
  margin-top:2.2rem;
  padding-top:1.6rem;
  border-top:1px solid var(--line);
}
.contact-info a{
  display:flex; align-items:center; gap:.6em;
  color:var(--parchment);
  text-decoration:none;
  font-size:1.02rem;
  transition:color .25s ease;
}
.contact-info a:hover{color:var(--gold-bright);}
.contact-info svg{width:19px; height:19px; color:var(--gold); flex:0 0 auto;}

.site-footer{
  text-align:center;
  padding:2.5rem 8vw 3rem;
  color:var(--parchment-faint);
  font-size:.82rem;
  letter-spacing:.06em;
}

/* Who */
.chapter--who{align-items:center; text-align:center;}
.who-desc{max-width:56ch; color:var(--parchment-dim); font-size:1.08rem; margin:0 auto;}

/* Ribbon navigation (élément signature) */
.ribbon{
  position:fixed;
  right:2rem; top:50%;
  transform:translateY(-50%);
  z-index:10;
  display:flex; flex-direction:column; align-items:center;
  gap:0;
}
.ribbon__track{
  position:absolute;
  left:50%; top:0; bottom:0;
  width:1px;
  background:var(--line);
  transform:translateX(-50%);
  z-index:-1;
}
.ribbon__fill{
  position:absolute;
  left:50%; top:0;
  width:1px;
  background:linear-gradient(180deg, var(--gold), var(--gold-bright));
  transform:translateX(-50%);
  height:0%;
  transition:height .25s ease;
  z-index:-1;
  box-shadow:0 0 8px rgba(232,196,104,.6);
}
.ribbon__seal{
  width:14px; height:14px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--void-2);
  margin:14px 0;
  cursor:pointer;
  position:relative;
  padding:0;
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.ribbon__seal span{
  position:absolute; right:22px; top:50%; transform:translateY(-50%);
  font-size:.68rem; letter-spacing:.14em; color:var(--parchment-faint);
  white-space:nowrap; opacity:0; transition:opacity .25s ease;
  pointer-events:none;
}
.ribbon__seal:hover span{opacity:1;}
.ribbon__seal.is-active{
  background:var(--gold);
  border-color:var(--gold-bright);
  box-shadow:0 0 10px rgba(201,162,39,.7);
}
.ribbon__seal.is-active span{opacity:1; color:var(--gold-bright);}

/* ==================== FORMULAIRE DE CONTACT ==================== */

.chapter--form{
  align-items:center;
  background:
    radial-gradient(ellipse 100% 60% at 50% -20%, rgba(110,31,39,0.15), transparent 60%),
    transparent;
}

.form-contact{
  max-width:600px;
  width:100%;
  margin:2rem auto 0;
  text-align:left;
}

.form-honeypot{
  position:absolute;
  left:-9999px;
  opacity:0;
  height:0;
  width:0;
  overflow:hidden;
}

.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1.2rem;
  margin-bottom:1.5rem;
}

.form-row{
  display:flex;
  flex-direction:column;
}

.form-row--full{
  grid-column:1 / -1;
}

.form-row label{
  font-family:'Cinzel', serif;
  font-size:.78rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:.4em;
}

.form-row input,
.form-row textarea{
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  border:1px solid var(--line);
  border-radius:8px;
  padding:.85em 1em;
  color:var(--parchment);
  font-family:'Crimson Text', serif;
  font-size:1rem;
  line-height:1.5;
  transition:border-color .25s ease, box-shadow .25s ease;
}

.form-row input::placeholder,
.form-row textarea::placeholder{
  color:var(--parchment-faint);
  opacity:.6;
}

.form-row input:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(201,162,39,.15);
}

.form-row textarea{
  resize:vertical;
  min-height:120px;
}

.form-optional{
  color:var(--parchment-faint);
  font-weight:400;
  font-size:.7rem;
  text-transform:none;
  letter-spacing:0;
}

.form-required{
  color:var(--ember);
}

.form-footer{
  text-align:center;
  margin-top:1rem;
}

.form-note{
  margin-top:1rem;
  font-size:.78rem;
  color:var(--parchment-faint);
  font-style:italic;
}

.form-success{
  display:none;
  padding:1.6rem;
  background:linear-gradient(160deg, var(--panel), var(--panel-2));
  border:1px solid var(--gold);
  border-radius:10px;
  color:var(--gold-bright);
  font-family:'Cinzel', serif;
  font-size:.85rem;
  text-align:center;
  margin-top:1.2rem;
}

.form-error{
  display:none;
  padding:1.4rem;
  background:rgba(110,31,39,0.2);
  border:1px solid var(--ember);
  border-radius:10px;
  color:var(--parchment);
  font-size:.9rem;
  text-align:center;
  margin-top:1.2rem;
}

@media (max-width: 640px){
  .form-grid{
    grid-template-columns:1fr;
  }
}

/* Responsive */
@media (max-width: 860px){
  .ribbon{right:.9rem; gap:0;}
  .ribbon__seal{width:10px; height:10px; margin:10px 0;}
  .ribbon__seal span{display:none;}
}

@media (max-width: 640px){
  body{font-size:16.5px;}
  .chapter{padding:6rem 6vw 5rem;}
  .hero-desc, .lead, .contact-desc{max-width:100%;}
  .chapter--hero .logo-emblem{width:72px; height:72px; margin-right:.7rem;}
  .tagline{white-space:normal;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{transition:none; opacity:1; transform:none;}
  .scroll-hint .arrow{animation:none;}
}