*{box-sizing:border-box;}
body{margin:0;font-family:var(--erp-font);color:var(--erp-text);background:var(--erp-bg-light);line-height:1.55;}
img{max-width:100%;display:block;}
a{color:inherit;}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px;}

/* Topbar */
.erp-topbar{background:var(--erp-primary-dark);color:#fff;font-size:13px;padding:6px 0;}
.erp-topbar .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.erp-topbar a{color:#fff;text-decoration:none;margin-right:16px;}

/* Header / nav */
.erp-header{background:var(--erp-primary);position:sticky;top:0;z-index:50;box-shadow:var(--erp-shadow);}
.erp-header .wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;}
.erp-logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:20px;letter-spacing:.3px;}
.erp-logo img{height:42px;width:auto;}
.erp-nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0;}
.erp-nav a{color:#fff;text-decoration:none;font-weight:600;font-size:14.5px;opacity:.92;}
.erp-nav a:hover{opacity:1;text-decoration:underline;text-underline-offset:4px;}
.erp-nav-toggle{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer;}

.erp-btn{display:inline-block;background:var(--erp-accent);color:#2a1c00;border:none;padding:12px 26px;border-radius:999px;font-weight:800;text-decoration:none;cursor:pointer;font-size:15px;box-shadow:0 4px 14px rgba(212,160,23,.4);transition:transform .15s ease, background .15s ease;}
.erp-btn:hover{background:var(--erp-accent-dark);transform:translateY(-1px);}
.erp-btn-outline{background:transparent;color:#fff;border:2px solid var(--erp-accent);}
.erp-btn-outline:hover{background:var(--erp-accent);color:#2a1c00;}

/* Hero */
.erp-hero{background:linear-gradient(160deg,var(--erp-primary) 0%,var(--erp-primary-dark) 100%);color:#fff;padding:80px 0 70px;text-align:center;position:relative;overflow:hidden;}
.erp-hero .eyebrow{color:var(--erp-accent);letter-spacing:2px;text-transform:uppercase;font-size:13px;font-weight:700;margin-bottom:14px;}
.erp-hero h1{font-size:42px;margin:0 0 18px;font-weight:900;line-height:1.15;}
.erp-hero p{font-size:17px;max-width:640px;margin:0 auto 30px;color:#f4e3c8;}
.erp-hero .erp-hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.erp-hero .wrap{position:relative;z-index:2;}

.erp-hero-animated .erp-hero-glow{position:absolute;border-radius:50%;filter:blur(60px);opacity:.35;pointer-events:none;z-index:1;}
.erp-hero-glow-1{width:360px;height:360px;background:var(--erp-accent);top:-120px;left:-80px;animation:erp-float-a 12s ease-in-out infinite;}
.erp-hero-glow-2{width:300px;height:300px;background:#8a1c1a;bottom:-140px;right:-60px;animation:erp-float-b 14s ease-in-out infinite;}
@keyframes erp-float-a{0%,100%{transform:translate(0,0);}50%{transform:translate(30px,25px);}}
@keyframes erp-float-b{0%,100%{transform:translate(0,0);}50%{transform:translate(-25px,-20px);}}

.erp-hero-sparkles{position:absolute;inset:0;z-index:3;pointer-events:none;
	background-image:
		radial-gradient(2px 2px at 15% 25%, rgba(212,160,23,.9), transparent),
		radial-gradient(2px 2px at 80% 20%, rgba(212,160,23,.7), transparent),
		radial-gradient(1.5px 1.5px at 60% 70%, rgba(255,255,255,.6), transparent),
		radial-gradient(2px 2px at 30% 80%, rgba(212,160,23,.6), transparent),
		radial-gradient(1.5px 1.5px at 92% 60%, rgba(255,255,255,.5), transparent);
	animation:erp-sparkle-twinkle 4s ease-in-out infinite;
}
@keyframes erp-sparkle-twinkle{0%,100%{opacity:.5;}50%{opacity:1;}}

.erp-fade-in{opacity:0;transform:translateY(16px);animation:erp-fade-up .7s ease forwards;}
@keyframes erp-fade-up{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion: reduce){
	.erp-fade-in{animation:none;opacity:1;transform:none;}
	.erp-hero-glow,.erp-hero-sparkles{animation:none;}
}

/* Écran d'intro (page d'accueil, avant d'accéder au site) */
body.erp-intro-active{overflow:hidden;}
.erp-intro-splash{position:fixed;inset:0;z-index:9999;background:radial-gradient(circle at 50% 30%, #3A0605 0%, #1a0000 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;cursor:pointer;opacity:1;transition:opacity .7s ease;}
.erp-intro-splash.erp-intro-closing{opacity:0;pointer-events:none;}
.erp-intro-photo-wrap{width:220px;height:220px;border-radius:50%;overflow:hidden;border:3px solid var(--erp-accent);box-shadow:0 0 50px rgba(212,160,23,.45);margin-bottom:28px;animation:erp-intro-pop 1s cubic-bezier(.34,1.56,.64,1) both, erp-intro-float 4s ease-in-out 1s infinite;}
.erp-intro-photo{width:100%;height:100%;object-fit:cover;object-position:20% 15%;}
@keyframes erp-intro-pop{from{opacity:0;transform:scale(.6);}to{opacity:1;transform:scale(1);}}
@keyframes erp-intro-float{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}
.erp-intro-text{opacity:0;animation:erp-fade-up .8s ease .4s forwards;}
.erp-intro-title{color:#fff;font-size:30px;font-weight:900;margin:0 0 14px;max-width:560px;cursor:default;}
.erp-intro-slogan{color:var(--erp-accent);font-size:16px;font-style:italic;max-width:480px;margin:0 auto;cursor:default;}
.erp-intro-btn{opacity:0;animation:erp-fade-up .8s ease .9s forwards;margin-top:32px;cursor:pointer;}
@media (max-width:600px){
	.erp-intro-photo-wrap{width:160px;height:160px;}
	.erp-intro-title{font-size:23px;}
	.erp-intro-slogan{font-size:14px;}
}
@media (prefers-reduced-motion: reduce){
	.erp-intro-photo-wrap{animation:none;}
	.erp-intro-text,.erp-intro-btn{animation:none;opacity:1;}
}

/* Slider hero (page d'accueil) */
.erp-slider{position:relative;overflow:hidden;color:#fff;}
.erp-slider-track{position:relative;height:560px;}
.erp-slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;visibility:hidden;transform:translateX(24px);transition:opacity .8s ease, transform .8s ease, visibility 0s linear .8s;text-align:center;}
.erp-slide.is-active{opacity:1;visibility:visible;transform:translateX(0);transition:opacity .8s ease, transform .8s ease;z-index:2;}
.erp-slide-content{position:relative;z-index:4;width:100%;}
.erp-slide .eyebrow{color:var(--erp-accent);letter-spacing:2px;text-transform:uppercase;font-size:13px;font-weight:700;margin-bottom:14px;}
.erp-slide h1{font-size:38px;margin:0 0 18px;font-weight:900;line-height:1.18;}
.erp-slide p{font-size:17px;max-width:640px;margin:0 auto 28px;color:#f4e3c8;}
.erp-slide .erp-hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

.erp-slider-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.25);border:1.5px solid rgba(255,255,255,.4);color:#fff;width:44px;height:44px;border-radius:50%;font-size:24px;cursor:pointer;z-index:5;line-height:1;}
.erp-slider-arrow:hover{background:rgba(0,0,0,.4);}
.erp-slider-prev{left:18px;}
.erp-slider-next{right:18px;}
.erp-slider-dots{position:absolute;bottom:22px;left:0;right:0;display:flex;justify-content:center;gap:9px;z-index:5;}
.erp-slider-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;padding:0;}
.erp-slider-dot.active{background:var(--erp-accent);width:26px;border-radius:6px;transition:width .3s ease;}

@media (max-width:820px){
	.erp-slider-track{height:520px;}
	.erp-slide h1{font-size:27px;}
	.erp-slider-arrow{width:36px;height:36px;font-size:20px;}
}
@media (prefers-reduced-motion: reduce){
	.erp-slide{transition:opacity .3s ease;transform:none;}
}

/* Sections */
.erp-section{padding:64px 0;}
.erp-section.alt{background:var(--erp-bg);}
.erp-section-head{text-align:center;max-width:680px;margin:0 auto 40px;}
.erp-section-head .eyebrow{color:var(--erp-primary);text-transform:uppercase;font-size:12.5px;font-weight:800;letter-spacing:1.5px;}
.erp-section-head h2{font-size:30px;margin:8px 0 10px;color:var(--erp-primary-dark);}
.erp-section-head p{color:var(--erp-text-soft);}

.erp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;}
.erp-card{background:#fff;border:1px solid var(--erp-border);border-radius:var(--erp-radius);padding:26px;box-shadow:var(--erp-shadow);}
.erp-card h3{color:var(--erp-primary);margin:0 0 8px;font-size:19px;}
.erp-card .price{color:var(--erp-accent-dark);font-weight:800;font-size:22px;margin:10px 0;}
.erp-card ul{padding-left:18px;color:var(--erp-text-soft);font-size:14.5px;}

/* Form */
.erp-form-wrap{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--erp-border);border-radius:14px;box-shadow:var(--erp-shadow);padding:40px;}
.erp-form-section-title{color:var(--erp-primary);font-size:16px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;margin:30px 0 16px;padding-bottom:8px;border-bottom:2px solid var(--erp-bg);}
.erp-form-section-title:first-child{margin-top:0;}
.erp-field{margin-bottom:18px;}
.erp-field label{display:block;font-weight:700;font-size:14px;margin-bottom:6px;color:var(--erp-text);}
.erp-field .req{color:var(--erp-danger);}
.erp-field input[type=text],
.erp-field input[type=email],
.erp-field input[type=tel],
.erp-field input[type=date],
.erp-field select,
.erp-field textarea{
  width:100%;padding:11px 13px;border:1.5px solid var(--erp-border);border-radius:8px;font-size:14.5px;font-family:inherit;background:var(--erp-bg-light);
}
.erp-field textarea{min-height:90px;resize:vertical;}
.erp-field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.erp-checkbox{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--erp-text-soft);margin-bottom:12px;}
.erp-checkbox input{margin-top:3px;}

/* Moyens de paiement (cartes cliquables avec icône) */
.erp-payment-methods{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;}
.erp-payment-card{position:relative;display:flex;align-items:center;gap:8px;border:1.5px solid var(--erp-border);border-radius:10px;padding:12px 14px;cursor:pointer;background:var(--erp-bg-light);font-size:13.5px;}
.erp-payment-card input[type=radio]{position:absolute;opacity:0;}
.erp-payment-card:has(input:checked){border-color:var(--erp-accent);background:#fff7e6;box-shadow:0 0 0 2px rgba(212,160,23,.25);}
.erp-payment-card.erp-checked{border-color:var(--erp-accent);background:#fff7e6;box-shadow:0 0 0 2px rgba(212,160,23,.25);}
.erp-payment-icon{font-size:20px;}
.erp-payment-label{flex:1;font-weight:600;color:var(--erp-text);}
.erp-payment-info{color:var(--erp-text-soft);text-decoration:none;font-size:15px;flex-shrink:0;}
.erp-payment-info:hover{color:var(--erp-primary);}
.erp-submit-row{margin-top:26px;text-align:center;}
.erp-form-msg{padding:14px 18px;border-radius:8px;margin-bottom:20px;font-size:14.5px;}
.erp-form-msg.success{background:#e7f4e8;color:var(--erp-success);border:1px solid #b6dcb8;}
.erp-form-msg.error{background:#fbeceb;color:var(--erp-danger);border:1px solid #f0c4c1;}

.erp-tab-btn{background:#fff;border:1.5px solid var(--erp-border);color:var(--erp-primary);padding:10px 20px;border-radius:999px;font-weight:700;font-size:14px;cursor:pointer;}
.erp-tab-btn.active{background:var(--erp-primary);color:#fff;border-color:var(--erp-primary);}
.erp-tab-btn:hover{border-color:var(--erp-primary);}

/* Section présentation du livre */
.erp-book-section{display:grid;grid-template-columns:340px 1fr;gap:44px;align-items:center;}
.erp-book-cover img{border-radius:12px;box-shadow:0 14px 40px rgba(90,10,10,.25);}
.erp-book-info .eyebrow{color:var(--erp-primary);text-transform:uppercase;font-size:12.5px;font-weight:800;letter-spacing:1.5px;}
.erp-book-info h2{font-size:28px;margin:8px 0 4px;color:var(--erp-primary-dark);}
.erp-book-authors{font-weight:700;color:var(--erp-text-soft);margin:0 0 14px;font-style:italic;}
.erp-book-info p{color:var(--erp-text-soft);}
.erp-book-price{display:flex;align-items:baseline;gap:12px;margin:18px 0 22px;}
.erp-book-price-amount{font-size:34px;font-weight:900;color:var(--erp-accent-dark);}
.erp-book-price-alt{font-size:16px;color:var(--erp-text-soft);font-weight:700;}
@media (max-width:820px){
	.erp-book-section{grid-template-columns:1fr;text-align:center;}
	.erp-book-cover img{max-width:260px;margin:0 auto;}
	.erp-book-price{justify-content:center;}
}

.erp-book-links{display:flex;gap:12px;flex-wrap:wrap;}
.erp-btn-primary-outline{background:transparent;color:var(--erp-primary);border:2px solid var(--erp-primary);box-shadow:none;}
.erp-btn-primary-outline:hover{background:var(--erp-primary);color:#fff;}

/* Témoignages */
.erp-testimonial-card{display:flex;flex-direction:column;}
.erp-testimonial-stars{color:var(--erp-accent-dark);font-size:16px;letter-spacing:2px;margin-bottom:10px;}
.erp-testimonial-quote{color:var(--erp-text-soft);font-style:italic;flex:1;margin-bottom:16px;}
.erp-testimonial-author{display:flex;align-items:center;gap:10px;}
.erp-testimonial-photo{width:44px;height:44px;border-radius:50%;object-fit:cover;}
.erp-testimonial-role{font-size:12.5px;color:var(--erp-text-soft);}

/* Mini calendrier (formulaire d'inscription) */
.erp-mini-calendar{border:1.5px solid var(--erp-border);border-radius:10px;padding:14px;background:var(--erp-bg-light);max-width:340px;}
.erp-cal-head{display:flex;align-items:center;justify-content:space-between;font-weight:800;color:var(--erp-primary);margin-bottom:10px;font-size:14.5px;}
.erp-cal-nav{background:none;border:none;font-size:20px;color:var(--erp-primary);cursor:pointer;padding:0 8px;line-height:1;}
.erp-cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;}
.erp-cal-daynames div{text-align:center;font-size:11px;color:var(--erp-text-soft);font-weight:700;}
.erp-cal-day{background:#fff;border:1px solid var(--erp-border);border-radius:6px;padding:8px 0;font-size:13px;cursor:pointer;color:var(--erp-text);}
.erp-cal-day:hover{border-color:var(--erp-accent);}
.erp-cal-day.selected{background:var(--erp-accent);border-color:var(--erp-accent);color:#2a1c00;font-weight:800;}
.erp-cal-day.disabled{background:transparent;border-color:transparent;color:#ccc;cursor:not-allowed;}

/* Footer */
.erp-footer{background:var(--erp-primary-dark);color:#f4e3c8;padding:50px 0 24px;margin-top:60px;font-size:14px;}
.erp-footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;}
.erp-footer h4{color:#fff;font-size:15px;margin:0 0 12px;}
.erp-footer a{color:#f4e3c8;text-decoration:none;}
.erp-footer-bottom{text-align:center;margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#e0c99a;font-size:12.5px;}

@media (max-width:820px){
  .erp-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--erp-primary);padding:16px 20px;}
  .erp-nav.open{display:block;}
  .erp-nav ul{flex-direction:column;gap:14px;}
  .erp-nav-toggle{display:block;}
  .erp-hero h1{font-size:30px;}
  .erp-field-row{grid-template-columns:1fr;}
  .erp-footer .wrap{grid-template-columns:1fr;}
  .erp-form-wrap{padding:24px;}
}