/* --- VARIABLES ET BASES --- */
:root {
    --gold: #c5a059;
    --gold-dim: rgba(197, 160, 89, 0.7);
    --bg: #050505;
    --card: #0d0d0d;
    --border: rgba(255,255,255,0.06);
    --text-main: #e0e0e0;
    --text-dim: #888;
    --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

* { margin:0; padding:0; box-sizing:border-box; }
body { 
    background: var(--bg); 
    color: var(--text-main); 
    font-family: 'Inter', sans-serif; 
    -webkit-font-smoothing: antialiased; 
    overflow-x: hidden;
}

/* --- NAVIGATION & MENU MOBILE --- */
.minimal-nav {
    position: fixed; width: 100%; top: 0; height: 80px;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 6%; z-index: 1000; background: rgba(5,5,5,0.85); backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border);
}
.logo { font-family: 'Playfair Display'; font-size: 1.1rem; letter-spacing: 4px; text-decoration: none; color: white; position: relative; z-index: 1001; }
.logo span { color: var(--gold); font-size: 0.9rem; margin-left: 5px; }

.nav-links { display: flex; align-items: center; }
.cta-small { 
    border: 1px solid var(--gold); padding: 8px 18px; color: white !important; 
    text-decoration: none; text-transform: uppercase; font-size: 0.7rem;
    letter-spacing: 2px; font-weight: 500; display: inline-block;
    transition: 0.3s var(--ease); background: none;
}
.cta-small:hover { background: var(--gold); color: black !important; }

/* BOUTON BURGER (Caché sur PC) */
.menu-toggle { display: none; flex-direction: column; justify-content: space-between; width: 30px; height: 20px; background: transparent; border: none; cursor: pointer; z-index: 1001; }
.menu-toggle span { width: 100%; height: 2px; background-color: var(--gold); transition: all 0.3s ease; }

/* --- MISE EN PAGE CONTACT --- */
.container-premium { max-width: 1150px; margin: 0 auto; padding: 0 5%; }
.section-box { margin-bottom: 120px; border-top: 1px solid var(--gold); padding-top: 80px; }
.num { font-family: 'Playfair Display'; font-size: 1rem; color: var(--gold); margin-bottom: 25px; display: block; }
.section-title { font-family: 'Playfair Display'; font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 40px; }
.section-title span { font-style: italic; opacity: 0.7; color: var(--text-dim); }
.desc { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 35px; line-height: 1.7; font-weight: 300; }

.expertise-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: flex-start; }

/* --- INFOS DE CONTACT --- */
.gold-label { display: block; font-size: 0.65rem; color: var(--gold); letter-spacing: 3px; margin-bottom: 5px; font-weight: 600; }
.info-item { margin-bottom: 25px; }
.info-item p { font-size: 1.1rem; font-weight: 300; }

/* --- FORMULAIRE PREMIUM --- */
.img-frame.glass { 
    background: rgba(197, 160, 89, 0.05); border: 1px solid var(--border); 
    backdrop-filter: blur(10px); padding: 40px; border-radius: 20px;
}
.premium-form { display: flex; flex-direction: column; gap: 20px; }
.premium-form input, .premium-form select, .premium-form textarea {
    width: 100%; background: rgba(197, 160, 89, 0.1); border: none; border-bottom: 1px solid var(--border);
    padding: 15px 5px; color: white; font-family: 'Inter', sans-serif; outline: none; transition: 0.3s; font-size: 0.9rem;
}
.premium-form input:focus, .premium-form select:focus, .premium-form textarea:focus { border-bottom: 1px solid var(--gold); background: rgba(197, 160, 89, 0.15); }
.premium-form select option { background: #111; color: white; }

#submit-btn {
    width: 100%; cursor: pointer; margin-top: 20px; border: 1px solid var(--gold);
    padding: 12px 18px; color: white; text-transform: uppercase;
    font-size: 0.7rem; letter-spacing: 2px; font-weight: 500; background: none; transition: 0.3s var(--ease);
}
#submit-btn:hover { background: var(--gold); color: black !important; }

/* --- RÉSEAUX SOCIAUX FLOTTANTS --- */
.social-sticky { position: fixed; right: 30px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 20px; z-index: 999; }
.social-sticky a { width: 45px; height: 45px; display: flex; align-items: center; justify-content: center; background: rgba(197, 160, 89, 0.1); border: 1px solid var(--border); border-radius: 50%; color: var(--gold); transition: all 0.4s var(--ease); backdrop-filter: blur(10px); }
.social-sticky a svg { width: 20px; height: 20px; }
.social-sticky a:hover { background: var(--gold); color: black; transform: translateX(-5px); box-shadow: 0 10px 20px rgba(197, 160, 89, 0.3); }

/* --- FOOTER --- */
.footer-clean { text-align: center; padding: 70px 20px; opacity: 0.5; border-top: 1px solid var(--border); letter-spacing: 3px; font-size: 0.8rem; }

/* --- REVEAL ANIMATION --- */
.reveal { opacity: 0; transform: translateY(25px); transition: 1s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- RESPONSIVE MOBILE & TABLETTE --- */
@media (max-width: 850px) {
    .container-premium { margin-top: 100px !important; }
    .expertise-grid { grid-template-columns: 1fr; gap: 40px; }
    .section-box { padding-top: 40px; margin-bottom: 60px; }
    .img-frame.glass { padding: 25px; } /* Moins de padding sur mobile */
    
    .social-sticky {
        position: static; flex-direction: row; justify-content: center;
        margin: 40px 0; transform: none; width: 100%; gap: 25px;
    }
}

@media (max-width: 768px) {
    /* Menu Mobile */
    .menu-toggle { display: flex; }
    .nav-links { 
        position: fixed; top: 80px; left: 0; width: 100%; height: calc(100vh - 80px); 
        background: rgba(5,5,5,0.95); backdrop-filter: blur(20px); 
        flex-direction: column; justify-content: center; align-items: center; 
        gap: 40px; transform: translateX(100%); transition: transform 0.4s var(--ease);
    }
    .nav-links.active { transform: translateX(0); }
    .nav-links a { font-size: 1.2rem; margin: 0; }
    
    /* Animation du bouton burger */
    .menu-toggle.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
}