:root {
    --color-dark: #0B0B13;
    --color-light: #F9F8F6;
    --color-accent: #CFA454;
    --color-white: #FFFFFF;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--color-light); color: var(--color-dark); line-height: 1.6; overflow-x: hidden; }

/* NAVBAR */
nav { position: fixed; top: 0; width: 100%; padding: 25px 5%; z-index: 1000; transition: var(--transition); }
nav.scrolled { background: rgba(11, 11, 19, 0.95); backdrop-filter: blur(10px); padding: 15px 5%; border-bottom: 1px solid rgba(207, 164, 84, 0.2); }
.nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1400px; margin: 0 auto; }
.nav-logo { max-height: 60px; }
.nav-links { list-style: none; display: flex; gap: 40px; align-items: center; }
.nav-links a { color: var(--color-white); text-decoration: none; text-transform: uppercase; letter-spacing: 2px; font-size: 0.75rem; transition: var(--transition); font-weight: 600; position: relative; padding-bottom: 5px; }
.nav-links a:hover { color: var(--color-accent); }
.nav-links a::after { content: ''; position: absolute; width: 0; height: 1px; bottom: 0; left: 0; background-color: var(--color-accent); transition: width 0.3s; }
.nav-links a:hover::after { width: 100%; }

/* HERO */
#hero { height: 100vh; position: relative; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--color-white); }
.hero-image-container { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; }
.hero-image-container img { width: 100%; height: 100%; object-fit: cover; }
.overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(to bottom, rgba(11,11,19,0.5), var(--color-dark)); }
.hero-content { max-width: 900px; z-index: 2; padding: 0 20px; }
.hero-badge { display: inline-block; padding: 8px 25px; border: 1px solid var(--color-accent); color: var(--color-accent); text-transform: uppercase; letter-spacing: 3px; font-size: 0.75rem; margin-bottom: 25px; border-radius: 50px; font-weight: 500; }
.hero-content h1 { font-family: var(--font-heading); font-size: clamp(3rem, 6vw, 5.5rem); margin-bottom: 20px; line-height: 1.1; color: #FFFFFF !important; }
.hero-p { color: #FFFFFF !important; font-size: 1.2rem; font-weight: 300; margin-bottom: 45px; opacity: 1; }

/* BOUTONS HERO */
.hero-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.btn-solid-white { padding: 18px 35px; background: var(--color-white); color: var(--color-dark); text-decoration: none; text-transform: uppercase; font-weight: 600; font-size: 0.8rem; transition: var(--transition); border: 1px solid var(--color-white); }
.btn-solid-white:hover { background: transparent; color: var(--color-white); }
.btn-outline-white { padding: 18px 35px; background: rgba(255,255,255,0.1); color: var(--color-white); text-decoration: none; text-transform: uppercase; font-weight: 600; font-size: 0.8rem; border: 1px solid rgba(255,255,255,0.4); display: inline-block; margin-left: 15px; }
.btn-outline-white:hover { background: var(--color-white); color: var(--color-dark); }
.btn-solid-gold { padding: 18px 40px; background: var(--color-accent); color: var(--color-dark); text-decoration: none; text-transform: uppercase; font-weight: 600; font-size: 0.85rem; display: inline-block; border: none; cursor: pointer; transition: var(--transition); }
.btn-solid-gold:hover { background: var(--color-white); }

/* SECTIONS GLOBALES */
section { padding: 120px 5%; position: relative; }
.section-dark { background: var(--color-dark); color: var(--color-white); }
.section-light { background: #FFFFFF; color: var(--color-dark); }
.container { max-width: 1100px; margin: 0 auto; }
.section-title { text-align: center; font-family: var(--font-heading); font-size: clamp(2.5rem, 4vw, 3.5rem); margin-bottom: 70px; font-weight: 600; }
.section-title-left { font-family: var(--font-heading); font-size: clamp(2.5rem, 4vw, 3.5rem); margin-bottom: 40px; font-weight: 600; }

/* SIGNATURE / BIEN PLUS QU'UN INTERMEDIAIRE */
.quote-content { padding-left: 20px; border-left: 2px solid var(--color-accent); }
.quote-content p { color: #0B0B13 !important; }
.drop-cap { float: left; font-family: var(--font-heading); font-size: 5rem; line-height: 0.8; color: var(--color-accent); padding-right: 15px; }
.lead-text { font-size: 1.4rem; margin-bottom: 20px; line-height: 1.8; color: #0B0B13 !important; }
.secondary-text { font-size: 1.1rem; opacity: 0.8; margin-bottom: 40px; line-height: 1.8; }
.signature-block { margin-top: 30px; border-left: 2px solid var(--color-accent); padding-left: 15px; }
.sig-name { font-family: var(--font-heading); font-size: 2.2rem; color: var(--color-accent); font-style: italic; display: block; }
.sig-tag { text-transform: uppercase; letter-spacing: 2px; font-size: 0.75rem; opacity: 0.6; }

/* TIMELINE */
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding-left: 30px; border-left: 1px solid rgba(207, 164, 84, 0.3); }
.timeline-item { position: relative; margin-bottom: 50px; }
.timeline-dot { position: absolute; left: -36px; top: 5px; width: 11px; height: 11px; background: var(--color-accent); border-radius: 50%; }
.timeline-date { color: var(--color-accent); font-family: var(--font-heading); font-size: 1.1rem; margin-bottom: 10px; font-style: italic; }

/* DÉFIS */
.defis-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.defi-card { background: var(--color-white); padding: 40px; border-radius: 2px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.defi-card h3 { color: var(--color-accent); font-family: var(--font-heading); margin-bottom: 15px; text-align: center; }
.defi-card p { text-align: center; color: var(--color-dark); opacity: 0.8; }

/* SERVICES */
.services-list { display: flex; flex-direction: column; gap: 30px; }
.service-row { display: flex; align-items: center; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); padding: 50px; border-radius: 4px; transition: var(--transition); }
.service-row:hover { border-color: rgba(207, 164, 84, 0.3); background: rgba(255,255,255,0.04); }
.service-number { font-family: var(--font-heading); font-size: 5.5rem; color: var(--color-accent); margin-right: 50px; line-height: 1; opacity: 0.8; }
.service-info h3 { font-family: var(--font-heading); font-size: 2rem; margin-bottom: 15px; }

/* CATALOGUE BOUTON CENTRÉ */
.center-btn-wrapper { display: flex; justify-content: center; width: 100%; margin-top: 60px; }

/* FAQ */
.faq-container { max-width: 900px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(0,0,0,0.08); }
.faq-question { width: 100%; text-align: left; background: none; border: none; padding: 30px 0; font-family: var(--font-heading); font-size: 1.4rem; cursor: pointer; display: flex; justify-content: space-between; transition: var(--transition); color: var(--color-dark); }
.faq-question:hover, .faq-item.active .faq-question { color: var(--color-accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; opacity: 0.8; }
.faq-answer p { padding-bottom: 30px; }
.faq-item.active .faq-icon { transform: rotate(45deg); }

/* FORMULAIRE SOMBRE */
.dark-form { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); padding: 50px; max-width: 900px; margin: 0 auto; }
.input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.dark-form input, .dark-form textarea, .dark-form select { width: 100%; background: transparent; border: none; border-bottom: 1px solid rgba(255,255,255,0.2); padding: 15px 0; color: white; font-family: inherit; font-size: 1rem; transition: var(--transition); }
.dark-form select option { background: var(--color-dark); color: white; }
.dark-form input:focus, .dark-form textarea:focus, .dark-form select:focus { outline: none; border-bottom-color: var(--color-accent); }
.circle-check { width: 60px; height: 60px; border: 2px solid var(--color-accent); border-radius: 50%; color: var(--color-accent); font-size: 30px; line-height: 56px; text-align: center; margin: 0 auto 20px auto; }

/* FOOTER */
footer { text-align: center; padding: 50px 5%; background: var(--color-dark); color: white; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-links a { color: var(--color-accent); text-decoration: none; font-size: 0.8rem; margin: 0 10px; }

/* ANIMATION */
.reveal-on-scroll { opacity: 0; transform: translateY(40px); transition: 1s ease-out; }
.reveal-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-buttons { flex-direction: column; gap: 15px; }
    .btn-outline-white { margin-left: 0; }
    .service-row { flex-direction: column; text-align: center; }
    .service-number { margin-right: 0; margin-bottom: 20px; }
    .input-grid { grid-template-columns: 1fr; }
}