:root {
  --couleur-principale: #a12c4e;
  --couleur-secondaire: #445c66;
  --couleur-lien: #08535d;
  --couleur-texte: #4b5563;
  --couleur-fond: #fafbfe;
  --couleur-fond2: #ffffff;
  --couleur-fondheader: #111827;
  --couleur-blanc: #ffffff;
  --couleur-bordure: #e0d5c7;
}

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html{
            font-size: 100%;
        }
        body {
            color: var(--couleur-texte);
            font-family: Verdana, Arial, Helvetica, sans-serif;
            line-height: 1.5;
            overflow-x: hidden;
            background-color: var(--couleur-fond);
            font-size: 0.95rem;
        }


         h1 {
         color:#ffffff;           
            font-family: "Anton", sans-serif;
            text-shadow: 1px 1px 2px #000000, 0 0 2em #000000, 0 0 0.5em #000000;
            font-size: 3rem;
            letter-spacing: 8px;
            font-weight: bold;
            padding-top: 25px;  
         }
         
        h2 {
            /*font-family: "Josefin Sans", sans-serif;*/ 
            font-optical-sizing: auto;
            font-weight: bold;
            font-size: 1.3rem;
            text-transform: uppercase;
            color:var(--couleur-principale);
            /*margin-bottom: 2rem;*/
            text-align: center;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        } 
        h3 {
            padding: 20px 0;
            /*font-family: "Josefin Sans", sans-serif;*/
            font-optical-sizing: auto;
            font-weight: bold;
            font-size: 1.25rem;
            text-transform: uppercase;
            color:var(--couleur-blanc);
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        } 
        .trait{
            width: 100px;
            height: 3px;
            background-color: var(--couleur-principale);
            margin: 30px auto 30px auto;
        }
        p{
            padding: 5px 0;
        }     
        a{
            color: var(--couleur-lien);
        } 
        ul{
            padding: 0 0 0 20px;            
        }
        li{
            padding: 2px 10px;
        }  
        .gras{
            font-weight: bold;
        }
        .majuscules{
            text-transform: uppercase;
        }
        .info_rouge{
            color: var(--couleur-principale);
        }
        .centrer{
            text-align: center;
        }
        .main-content {
            padding: 2rem 1rem;
            margin: 0 auto;
            background-color: var(--couleur-fond);
        }  
        
        .cta-button {
            display: inline-block;
            padding: 0.45rem 1.2rem;
            margin: 15px 0 0 0 ;
            background: var(--couleur-blanc);
            color: var(--couleur-principale);
            text-decoration: none;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            box-shadow: 0 10px 18px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--couleur-principale);
        }
        
        .cta-button:hover {
            box-shadow: 0 12px 14px rgba(0, 0, 0, 0.15);
            border-color: transparent;
        }      

        /* ---------------- BANDEAU ---------------- */
        .header {
            max-width: 100%;
            min-height: 160px;
            position: relative;
            padding: 0;
            text-align: center;
            background-color: var(--couleur-fondheader);
            background-image: url('images/bandeau_web2.jpg');
            background-repeat:repeat-x;
            background-position: center;
            color:var(--couleur-blanc);  
            font-weight: bold;
            font-size: 1.3rem;
        }
        .header h2{
            display: inline-block;
            font-size: 1.4rem;
            padding: 2px;
            margin: 2px 0 5px 0;
            text-shadow: 1px 1px 2px #000000, 0 0 2em #000000, 0 0 0.5em #000000;
            /*border-radius: 10px;*/
           /* background-color: #d6e1e6;*/
           color:var(--couleur-bordure); 
        }
        .header p{
            padding-bottom: 30px;
            text-shadow: #222222 2px 2px 4px;
        }
        
        .header .cta-button {
            padding: 0.5rem 1.2rem;
            margin: 5px 0 25px 0 ;
            background: var(--couleur-fond);
            color: var(--couleur-lien);
            font-size: 1rem;
        }
        
        .header .cta-button:hover {
            color: var(--couleur-secondaire);
            border-color: 2px solid var(--couleur-secondaire);
        }      

        /* ---------------- PRESENTATION ---------------- */
 
        .about {
            color: var(--couleur-texte);
            padding: 0.4rem;
        }
        .about h2 {
            text-align: left;
            letter-spacing: -0.5px;
            margin-bottom: 0;
            padding: 20px 0 10px 0;
            line-height: 1.4em;
        }
        .about h3 {
            color: var(--couleur-secondaire);
            padding: 20px 0 10px 0;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }
        .poster-image {
            width: 100%;
            height: auto;
            border-radius: 15px;
            /*box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);*/
           transition:none;
           margin-bottom: 20px;
        }
        .poster-image:hover {
            transform:none;
        }
        

        /* ---------------- PROGRAMME ---------------- */
        .programme {
            margin: 2.5rem auto;
            max-width: 1200px;
            padding: 3.5rem 0;
            background-color: var(--couleur-fond2);
        }
        .programme p{
            padding: 0.5rem 1.5rem;
        }
        .programme-tabs-label,
        .programme-tabs {
            display: none;
        }
        .program-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .day-program {
            padding: 0;
        }        
        .day-title {
            color: var(--couleur-blanc);
            margin-bottom: 1.5rem;
            text-align: center;
            background: var(--couleur-secondaire);
            padding: 0.5rem;
            border-radius: 10px;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
            text-transform: uppercase;;
        }
        
        .event {
            margin: 1.1rem 0;
            padding: 1.5rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        /*
        .event:hover {
            background: rgba(222, 216, 207, 0.3);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        */
        .event-time {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--couleur-blanc);  
            background-color: var(--couleur-secondaire); 
            padding: 0.3rem 0.8rem;
            border-radius: 15px;
            display: inline-block;
        }        
        
        .event-title {
            color: var(--couleur-texte);
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 14px;
            line-height: 1.3;
            margin: 0.8rem 0 0.5rem 0;
            font-weight: bold;
            text-transform: uppercase;
        }
        .event-title img {
            background-color: var(--couleur-blanc);
            border: 3px solid var(--couleur-bordure);
            border-radius: 50%;
            cursor: pointer;
            flex: 0 0 35px;
            height: 35px;
            padding: 3px;
            box-shadow: 0 4px 10px rgba(161, 44, 78, 0.22);
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.25s ease;
            width: 35px;
        }
        .event-title img:hover {
            border-color: #bbbbbb;
            box-shadow: 0 6px 14px rgba(12, 105, 117, 0.28);
            transform: scale(1.08);
        }
        .event-title img:focus-visible {
            outline: 3px solid rgba(12, 105, 117, 0.35);
            outline-offset: 3px;
        }
        .event.open .event-title img {
            border-color: var(--couleur-secondaire);
            box-shadow: 0 6px 14px rgba(12, 105, 117, 0.28);
            transform: rotate(45deg) scale(1.04);
        }
        .event-tarif{
            font-style: italic;
            font-size: 0.9rem;
            color: var(--couleur-secondaire);
            margin-top: 5px;
        }
        
        .event-description {
            background-color: #f9f9f6;
            border-left: 3px solid var(--couleur-secondaire);
            border-radius: 8px;
            color: var(--couleur-texte);
            margin: 10px 0 12px 0;
            padding: 10px 12px;
            line-height: 1.4;
            font-size: 0.85rem;
        }
        .event-descriptionOuvert{
            font-size: 0.8rem;
            line-height: 1.4;
        }
    

@media (max-width: 1023px) {
        .programme {
            background-color: #f8f6f0;
            padding: 2.5rem 1rem;
        }
        .programme p.centrer {
            color: #6b7280;
            line-height: 1.45;
            padding: 0 0.25rem 1rem 0.25rem;
        }
        .programme p.programme-tabs-label {
            color: var(--couleur-principale);
            display: block;
            font-weight: bold;
            padding: 0 0 0.5rem 0;
            text-align: center;
            text-transform: uppercase;
        }
        .programme-tabs {
            display: flex;
            width: 100%;
            border: 1.5px solid var(--couleur-secondaire);
            border-radius: 12px;
            overflow: hidden;
            background-color: var(--couleur-blanc);
            margin: 0 0 1rem 0;
        }
        .programme-tab {
            flex: 1;
            padding: 10px 6px;
            font: 700 0.75rem/1.2 Verdana, Arial, Helvetica, sans-serif;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            text-align: center;
            border: 0;
            background: var(--couleur-blanc);
            color: var(--couleur-secondaire);
            cursor: pointer;
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .programme-tab.active {
            background-color: var(--couleur-secondaire);
            color: var(--couleur-blanc);
        }
        .program-grid {
            display: block;
            margin-top: 0;
        }
        .day-program {
            display: none;
            padding: 0;
        }
        .day-program.program-day-active {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .day-title {
            display: none;
        }
        .event {
            background-color: var(--couleur-blanc);
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: 16px;
            box-shadow: 0 4px 14px -2px rgba(12, 105, 117, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            margin: 0;
            padding: 16px;
        }
        .event:hover {
            background-color: var(--couleur-blanc);
            box-shadow: 0 4px 14px -2px rgba(12, 105, 117, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
        }
        .event-time {
            border-radius: 9999px;
            font-size: 0.75rem;
            margin-bottom: 8px;
            padding: 4px 12px;
        }
        .event-title {
            color: #111827;
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 14px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 4px 0;
        }
        .event-title img {
            background-color: var(--couleur-blanc);
            border: 3px solid var(--couleur-principale);
            border-radius: 50%;
            flex: 0 0 40px;
            height: 40px;
            padding: 3px;
            box-shadow: 0 4px 10px rgba(161, 44, 78, 0.22);
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.25s ease;
            width: 40px;
        }
        .event.open .event-title img {
            border-color: var(--couleur-secondaire);
            box-shadow: 0 6px 14px rgba(12, 105, 117, 0.28);
            transform: rotate(45deg) scale(1.04);
        }
        .event-description {
            background-color: #f9f9f6;
            border-left: 3px solid var(--couleur-secondaire);
            border-radius: 8px;
            color: var(--couleur-texte);
            margin: 10px 0 12px 0;
            padding: 10px 12px;
        }
        .event-tarif {
            font-size: 0.8rem;
            line-height: 1.4;
        }

}
        
        /* ---------------- INFOS PRATIQUES ---------------- */
        .infos {
            margin: 1rem auto;
            max-width: 1200px;
            padding: 3.5rem 1.5rem;
            background-color: var(--couleur-fond2);
        }
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
            margin-bottom: 2.5rem;
        }
        
        .info-card {
            background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
            padding: 2rem;
            border-radius: 15px;
            border: 2px solid var(--couleur-secondaire);
            text-align: left;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .info-card:hover {
           /* transform: translateY(-5px);*/
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .info-card h3 {
            color: var(--couleur-secondaire);
            margin-bottom: 1rem;
        }
        
        .info-card p {
            color: var(--couleur-texte);
            line-height: 1.6;
        }     
        .info-card ul {   
            padding: 0 8px 10px 10px;
        }
        .contact-part {
            display:block;
            padding: 10px;
        }
        .partenaires{
            line-height: 1.5em;
        }
        .partenaires h3 {
            margin-top: 15px;
            color: var(--couleur-secondaire);
        }
        .partenaires img{
            padding-right: 20px;
        }
        /* ---------------- FOOTER ---------------- */        
        .footer {
            background: var(--couleur-principale);
            padding: 2rem;
            text-align: center;
            color: var(--couleur-blanc);
        }
        
        .footer p {
            margin: 0.2rem 0;
        }
        .footer a{
            color: var(--couleur-blanc);
        }
        .footer .remarque{
            font-size: 0.95rem;
            color: #cccccc;
            padding: 0;
        }
        
        .decorative-border {
            height: 10px;
            background: linear-gradient(90deg, #f4a687 0%, #5a8c8c 50%, #f4a687 100%);
            background-size: 200% 100%;
            animation: gradient-shift 3s ease-in-out infinite;
        }
        
        @keyframes gradient-shift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
@media (min-width: 1024px) {
        .main-content {
            padding: 3rem 2rem;
        }
        h1 {
            font-size: 4.2rem;
            letter-spacing: 10px;
            padding-top: 80px;  
         }
        h2 {
            font-size: 1.5rem;
        } 
        .trait{
            margin: 25px auto 35px auto;
        }
        /*---------------- BANDEAU ---------------- */
        .header {
            height: 380px;
            font-size: 1.6rem;
        }
        
        .header h2{
            font-size: 1.7rem;
        }
        /* ---------------- PRESENTATION ---------------- */
        .sectionIntro {
            margin: 0 auto;
            max-width: 1200px;
            padding: 1.5rem;
            display: flex;
	        gap: 15px;
            justify-content: center;
            align-items: start;
        }
        .sectionIntro .poster-container{
           flex: 1 1 40%;
        }
        .sectionIntro .about{
           flex: 1 1 60%;
        }
        .about h2{
            letter-spacing: -1px;
        }
        .poster-container {
            padding: 0 2rem;
        }
        .poster-image {
           transition: all 0.3s ease;
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
            border-radius: 10px;
        }
        .poster-image:hover {
            transform: scale(1.02);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
        }
        /*  ---------------- PROGRAMME ---------------- */
        .programme {
            margin: 3.5rem auto 3.5rem auto;
        }
        .program-grid, .info-grid {
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        }
        .day-program {
            padding: 1.5rem;
        }   
        /*---------------- INFOS PRATIQUES ---------------- */
        .infos {
            margin: 3rem auto;
        }    
        .contact-part {
            display: flex;
            gap: 0.5rem;
            align-items: start;
            justify-content: start;
        }
        .partenaires{
            flex: 1 1 auto;
        }
}

/* ---------- menu de navigation ---------- */
        .navbar {
            background-color: var(--couleur-texte);
            /*padding: 0.2rem;*/
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            text-transform: uppercase;
        }

        .navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0.6rem 1rem;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .logo{
            padding-right: 40px;
            padding-left: 10px;
            
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 5px 15px 5px 5px;
            margin-left: auto;
        }

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--couleur-blanc);
            margin: 2px;
            transition: 0.3s;
        }        

        .nav-menu {
            display: flex;
            gap: 2rem;
            
        }
        
        .nav-menu a {
            flex: 1 1 auto;
            padding: 8px 20px 3px 20px;
            border-radius: 5px;
            color: var(--couleur-blanc);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            font-size: 1.1rem;
        }

        .nav-menu a:hover {
            background-color: var(--couleur-secondaire);
        }
        a.webGrottes {
            display: grid;
            grid-template-columns: auto 1fr;
            align-items: center;
            column-gap: 8px;
            background-color: var(--couleur-blanc); 
            color: var(--couleur-texte);
            text-transform:none;
            font-style: italic;   
            font-weight: normal;  
            font-size: 0.8em!important;
            letter-spacing: -0.5px;
            line-height: 1.15em;
            min-width: 210px;
            border-radius: 20px;
            padding: 4px 8px;
        }
        a.webGrottes img {
            display: block;
        }
        
        a.webGrottes:hover {
            background-color: #e1e5e9;
            color: var(--couleur-secondaire);
        }

        @media (max-width: 1200px) {
            
        .nav-menu {
            display: flex;
            gap: 1rem;
        }
        .nav-menu a {
            padding: 8px 5px 3px 5px;
        }
        a.webGrottes {
            padding: 4px 8px;
        }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            
            .navbar-container {
            justify-content: space-between ;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--couleur-secondaire);
                flex-direction: column;
                padding: 1rem;
                text-align: center;
                gap: 1rem;
            }

            .nav-menu.active {
                display: flex;
            }
            .nav-menu a {
                padding: 10px 20px;
                font-size: 1.2rem;
            }   
            a.webGrottes {
                grid-template-columns: auto auto;
                justify-content: center;
                width: fit-content;
                min-width: 0;
                margin: 0 auto;
                text-align: left;
                padding: 4px 20px 4px 8px;
            }
        }