:root{--bg:#1b2126;--text:#e6f0f3;--muted:#9fb0b9;--card:#20262c;--border:#2a3138;--c1:#20d3f3;--c2:#aac584;--grad:linear-gradient(135deg,var(--c1) 0%,var(--c2) 100%);--radius:14px;--max:1100px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,sans-serif}img{max-width:100%;display:block}
.container{width:90%;max-width:var(--max);margin-inline:auto}
.gradient{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;gap:.5rem;border-radius:999px;padding:.75rem 1.1rem;text-decoration:none;border:1px solid var(--border);color:var(--text)}
.btn.primary{background:var(--grad);color:#0d1114;border:0;font-weight:700}
.btn.ghost{background:transparent}
.small{font-size:.875rem}.muted{color:var(--muted)}

/* Liens — couleurs globales */
/* Utilise la variable --c1 comme couleur principale, --c2 pour l'état hover/visited.
	Remarque : la navigation (`.nav-links a`) utilise déjà `color:var(--text)` et
	continuera d'hériter de ce style à moins d'être ciblée explicitement. */
a{color:var(--c1);text-decoration:underline}
a:visited{color:var(--c1)}
a:hover,a:active{color:var(--c2);text-decoration:none}
a:focus{outline:3px solid rgba(32,211,243,.12);outline-offset:3px;border-radius:4px}


/* Nav */
.site-header{position:sticky;top:0;z-index:50;background:rgba(27,33,38,.7);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.6rem 0}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--text);font-weight:700}
.nav-links{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--text);text-decoration:none;padding:.4rem .6rem;border-radius:8px}
.nav-links a:hover{background:#222a30}
.nav-toggle{display:none;background:transparent;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:.4rem .6rem}

/* Hero */
.hero{position:relative;isolation:isolate;min-height:42vh;max-height:520px;display:grid;place-items:center}
.hero-media{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;overflow:hidden;z-index:-1}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.20),rgba(0,0,0,0.4))}
.hero-media img{max-width:100%;height:auto;object-fit:contain}
.hero-content{padding:4rem 0;text-align:center}

/* No-upscale variant: l'image ne dépasse jamais sa taille native */
.hero.no-upscale{min-height:unset;max-height:none;display:block}
.hero.no-upscale .hero-media{position:relative;inset:auto;z-index:auto}
.hero.no-upscale .hero-content{padding:2rem 0 3rem}
.hero h1{font-size:clamp(1.8rem,4.2vw,3rem);line-height:1.2;margin:.5rem 0}
.hero p{margin:.25rem 0 1.25rem;color:#cfe7f0}
.hero-ctas{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}

/* Sections */
.section{padding:3.5rem 0}
.section h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 1rem}
.section-sub{margin:-.4rem 0 1.6rem;color:#cfe7f0}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.2rem}
.card h3{margin:.2rem 0 0.4rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.tile{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.tile img, .tile video{width:100%;height:180px;object-fit:cover}
.tile figcaption{padding:.8rem;border-top:1px solid var(--border)}
.tile strong{display:block}

/* About */
.about{display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:flex-start}
.about-logo{border-radius:14px;border:1px solid var(--border);background:#111;grid-row:1 / span 3}
.about p{grid-column:2}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
label{display:grid;gap:.35rem;margin:.3rem 0}
input,textarea{background:#141a1f;color:var(--text);border:1px solid var(--border);border-radius:10px;padding:.65rem .7rem;font:inherit}
input:focus,textarea:focus{outline:2px solid transparent;border-color:#2f9fd1;box-shadow:0 0 0 3px rgba(32,211,243,.2)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:1.2rem 0;background:#161c21;color:var(--muted)}

/* Chatbot */
.chatbot{position:fixed;right:18px;bottom:18px;z-index:60}
.chat-toggle{width:52px;height:52px;border-radius:50%;border:0;background:var(--grad);box-shadow:0 6px 22px rgba(0,0,0,.35);cursor:pointer}
.chat-panel{position:fixed;right:18px;bottom:80px;width:min(360px,92vw);background:#0f1418;border:1px solid var(--border);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.chat-header{display:flex;align-items:center;gap:.5rem;padding:.6rem .8rem;background:#12181d;border-bottom:1px solid var(--border)}
.chat-close{margin-left:auto;background:transparent;border:0;color:var(--muted);font-size:1.1rem;line-height:1;cursor:pointer}
.chat-close:hover{color:var(--text)}
.chat-log{padding:.8rem;max-height:50vh;overflow:auto;display:flex;flex-direction:column;gap:.6rem}
.msg{display:inline-block;max-width:85%;padding:.55rem .7rem;border-radius:12px;border:1px solid var(--border)}
.me{align-self:flex-end;background:#162028}
.bot{align-self:flex-start;background:#151b20}
.typing{color:var(--muted);display:flex;align-items:center;gap:.35rem}
.typing-label{font-size:.85rem}
.typing-dots{display:inline-flex;gap:4px}
.typing-dots span{width:7px;height:7px;border-radius:50%;background:var(--muted);opacity:.45;animation:typingBlink 1.2s infinite}
.typing-dots span:nth-child(2){animation-delay:.2s}
.typing-dots span:nth-child(3){animation-delay:.4s}
@keyframes typingBlink{0%{opacity:.15;transform:translateY(0)}40%{opacity:1;transform:translateY(-1px)}100%{opacity:.15;transform:translateY(0)}}
.chat-form{display:flex;gap:.4rem;padding:.6rem;border-top:1px solid var(--border)}
.chat-form input{flex:1}

/* Responsive */
@media (max-width:900px){.cards,.gallery,.contact-grid{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}.about{grid-template-columns:1fr}.hero{min-height:38vh;max-height:440px}.hero-content{padding:3rem 0}.hero.no-upscale .hero-content{padding:1.5rem 0 2.5rem}}
@media (max-width:720px){.nav-links{display:none}.nav.open .nav-links{display:flex;flex-direction:column;position:absolute;top:56px;right:5%;background:#12181d;border:1px solid var(--border);border-radius:12px;padding:.6rem}.nav-toggle{display:inline-block}}