/* --- CONFIGURATION & VARIABLES --- */
:root {
    --bg-black: #000000;       /* Noir pur */
    
    --text-main: #f2f2f2;      /* Blanc cassé */
    --text-muted: #999999;     /* Gris neutre */
    
    --glass-bg: rgba(15, 15, 15, 0.6); /* Fond sombre et transparent */
    --glass-border: rgba(255, 255, 255, 0.12); /* Bordure fine */
    
    --font-sans: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    --radius-lg: 16px;
}

/* --- RESET --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-black);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { width: 100%; display: block; filter: grayscale(100%); transition: 0.5s; }
img:hover { filter: grayscale(0%); } /* Retour couleur au survol */

/* --- HEADER & FOOTER --- */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    padding: 20px 0;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 800; font-size: 1.3rem; letter-spacing: -0.02em; text-transform: uppercase; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.nav-links a:hover { color: var(--text-main); }

/* --- BACKGROUND "SMOKE" (L'effet demandé) --- */
.main-design-wrapper {
    position: relative;
    overflow: hidden;
    background-color: var(--bg-black);
    padding-top: 80px;
}

.ambient-background {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.ambient-background::before,
.ambient-background::after {
    content: "";
    position: absolute;
    width: 60vw; height: 40vw;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 60%);
    filter: blur(90px); /* Flou extrême */
    border-radius: 50%;
    opacity: 0.5;
    animation: smokeFloat 25s infinite ease-in-out alternate;
}

.ambient-background::before {
    top: 10%; left: -10%;
    transform: rotate(-15deg);
}

.ambient-background::after {
    bottom: 20%; right: -10%;
    background: radial-gradient(ellipse at center, rgba(200,200,200,0.1) 0%, rgba(255,255,255,0) 60%);
    animation-direction: alternate-reverse;
    animation-duration: 35s;
}

@keyframes smokeFloat {
    0% { transform: translate(0, 0) scale(1) rotate(-15deg); opacity: 0.4; }
    50% { transform: translate(30px, -30px) scale(1.1) rotate(-10deg); opacity: 0.6; }
    100% { transform: translate(-20px, 20px) scale(0.95) rotate(-20deg); opacity: 0.4; }
}

/* --- GLASS CARDS (Style Principal) --- */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: transform 0.4s ease, border-color 0.3s;
    position: relative;
    z-index: 10;
}

.hover-action:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(20, 20, 20, 0.9);
}

.no-padding { padding: 0; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.no-padding img { width: 100%; height: 100%; object-fit: cover; }

/* --- TYPOGRAPHIE & BOUTONS --- */
.section-padding { padding: 100px 0; position: relative; z-index: 10; }

h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

h2 { font-size: 2.5rem; margin-bottom: 16px; font-weight: 600; line-height: 1.2; }
h3 { font-size: 1.5rem; margin-bottom: 10px; color: var(--text-main); }
p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 16px; font-weight: 300; }
.hero-subtitle { max-width: 600px; margin: 0 auto 40px; font-size: 1.2rem; }

.badge {
    border: 1px solid var(--glass-border); padding: 8px 16px; border-radius: 50px;
    font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 30px; display: inline-block;
}

.overline { 
    text-transform: uppercase; letter-spacing: 0.15em; font-size: 0.8rem; 
    color: var(--text-muted); display: block; margin-bottom: 15px; 
}
.serif-font { font-family: var(--font-serif); font-style: italic; }

.btn { padding: 14px 32px; border-radius: 50px; font-weight: 600; font-size: 0.9rem; display: inline-block; transition: 0.3s; }
.btn-primary { background: var(--text-main); color: #000; border: 1px solid var(--text-main); }
.btn-primary:hover { background: transparent; color: var(--text-main); }
.btn-secondary { background: transparent; border: 1px solid var(--glass-border); color: var(--text-main); }
.btn-secondary:hover { border-color: var(--text-main); background: rgba(255,255,255,0.1); }

/* --- HERO --- */
.hero { min-height: 90vh; display: flex; align-items: center; justify-content: center; text-align: center; position: relative; z-index: 10; }
.hero-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

/* --- STATS --- */
.stats-bar { border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); padding: 40px 0; background: rgba(0,0,0,0.5); z-index: 10; position: relative; }
.stats-grid { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 20px; }
.stat-number { font-size: 2.5rem; font-weight: 300; display: block; font-family: var(--font-serif); }
.stat-label { font-size: 0.8rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.1em; }

/* --- LAYOUTS --- */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.reversed .split-layout { direction: rtl; } /* Inverse l'ordre visuel */
.reversed .split-layout > * { direction: ltr; } /* Remet le texte à l'endroit */

.feature-list-detailed li { 
    margin-bottom: 15px; padding-left: 0; list-style: none; color: var(--text-muted); 
}
.feature-list-detailed strong { color: var(--text-main); display: block; margin-bottom: 5px; font-size: 1.1rem; }

/* --- BENTO GRID (Navigation) --- */
.section-header { margin-bottom: 60px; max-width: 600px; }
.bento-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.item-large { grid-column: span 2; }
.item-tall { grid-row: span 1; }
.item-wide { grid-column: span 3; }
.content-flex { display: flex; align-items: center; gap: 30px; }

.icon-box { font-size: 2rem; margin-bottom: 20px; filter: grayscale(100%); }
.feature-list li { margin-bottom: 8px; padding-left: 15px; position: relative; font-size: 0.9rem; }
.feature-list li::before { content: '•'; position: absolute; left: 0; color: var(--text-main); }
.link-arrow { display: block; margin-top: 15px; font-size: 0.85rem; font-weight: 600; color: var(--text-main); }

/* --- HOSPITALITY GRID --- */
.hospitality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.hospitality-card { padding: 0; height: 450px; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--glass-border); }
.hospitality-card img { height: 100%; width: 100%; object-fit: cover; transition: transform 0.8s; opacity: 0.8; }
.hospitality-card:hover img { transform: scale(1.05); opacity: 1; }
.card-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%; padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,1), transparent);
}

/* --- CONTACT FORM --- */
.info-block { margin-top: 20px; padding: 20px; background: rgba(255,255,255,0.03); border: 1px solid var(--glass-border); border-radius: 8px; }
.info-block h4 { color: var(--text-main); margin-bottom: 5px; font-size: 1rem; }
.link-clean { color: inherit; text-decoration: underline; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 0.9rem; color: var(--text-muted); }

input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: 0.3s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--text-main);
    background: rgba(255,255,255,0.1);
}

.full-width { width: 100%; }

/* --- FOOTER --- */
.footer { padding: 40px 0; border-top: 1px solid var(--glass-border); text-align: center; background-color: #000; z-index: 100; position: relative; }
.legal-links a { color: var(--text-muted); margin: 0 10px; font-size: 0.8rem; }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .bento-grid, .hospitality-grid { grid-template-columns: 1fr 1fr; }
    .item-large, .item-wide { grid-column: span 2; }
}

@media (max-width: 768px) {
    .nav-links, .navbar .btn { display: none; }
    .split-layout { grid-template-columns: 1fr; gap: 40px; }
    .reversed .split-layout { direction: ltr; } /* Pas d'inversion sur mobile */
    
    .bento-grid, .hospitality-grid { grid-template-columns: 1fr; }
    .item-large, .item-wide { grid-column: span 1; }
    
    h1 { font-size: 2.5rem; }
    .content-flex { flex-direction: column; align-items: flex-start; gap: 10px; }
}