/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette ocre, noir profond, doré */
    --primary-gold: #D4AF37;
    --primary-ochre: #CC7722;
    --accent-gold: #FFD700;
    --deep-black: #0A0A0A;
    --charcoal: #1C1C1C;
    --warm-white: #FEFEFE;
    --cream: #F8F6F0;
    --text-light: #8B7355;
    --border-light: #E8E2D5;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Shadows */
    --shadow-soft: 0 4px 20px rgba(212, 175, 55, 0.1);
    --shadow-medium: 0 8px 30px rgba(212, 175, 55, 0.15);
    --shadow-strong: 0 15px 40px rgba(212, 175, 55, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: 300;
    line-height: 1.6;
    color: var(--deep-black);
    background-color: var(--warm-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--deep-black);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--deep-black);
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    color: var(--deep-black);
    margin-bottom: 0.8rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.nav-brand {
    position: relative;
    z-index: 10;
}

.nav-brand h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
}

.nav-brand h1:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 12px 30px;
    border-radius: 50px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    backdrop-filter: blur(10px);
}

.nav-links a {
    color: var(--warm-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 8px 16px;
    border-radius: 25px;
    letter-spacing: 0.3px;
}

.nav-links a:hover {
    color: var(--deep-black);
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--accent-gold) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--accent-gold) 100%);
    border-radius: 25px;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.nav-links a:hover::before {
    opacity: 1;
    transform: scale(1);
}

.nav-mobile {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-mobile span {
    width: 25px;
    height: 3px;
    background: var(--primary-gold);
    margin: 3px 0;
    transition: 0.3s;
}

/* Buttons */
.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn.btn-primary {
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-ochre) 100%);
    color: var(--deep-black);
    box-shadow: var(--shadow-soft);
}

.btn.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

.btn.btn-secondary {
    background: transparent;
    color: var(--warm-white);
    border: 2px solid var(--primary-gold);
}

.btn.btn-secondary:hover {
    background: var(--primary-gold);
    color: var(--deep-black);
}

.btn.btn-outline {
    background: transparent;
    color: var(--deep-black);
    border: 2px solid var(--primary-ochre);
}

.btn.btn-outline:hover {
    background: var(--primary-ochre);
    color: var(--warm-white);
}

.btn.large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--deep-black) 0%, var(--charcoal) 50%, var(--primary-ochre) 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%, rgba(212, 175, 55, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(204, 119, 34, 0.15) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    color: var(--warm-white);
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    font-weight: 600;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--accent-gold);
    margin-bottom: 2.5rem;
    font-weight: 300;
    line-height: 1.5;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 3px solid var(--primary-gold);
    border-bottom: 3px solid var(--primary-gold);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(45deg);
    }
    40% {
        transform: translateY(-10px) rotate(45deg);
    }
    60% {
        transform: translateY(-5px) rotate(45deg);
    }
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-top: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* À propos */
.about {
    background: var(--cream);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 2rem;
    color: var(--deep-black);
}

.lead {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--primary-ochre);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.about-text p {
    margin-bottom: 2rem;
    color: var(--text-light);
    font-size: 1.1rem;
}

.about-stats {
    display: flex;
    gap: 30px;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-gold);
    font-family: var(--font-display);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-ochre) 0%, var(--primary-gold) 100%);
    width: 100%;
    height: 400px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--warm-white);
    font-size: 1.2rem;
    font-weight: 500;
    text-align: center;
    box-shadow: var(--shadow-medium);
}

/* Offres */
.offers {
    background: var(--warm-white);
}

.offers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.offer-card {
    background: var(--warm-white);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    border: 2px solid var(--border-light);
    transition: all 0.3s ease;
    position: relative;
    box-shadow: var(--shadow-soft);
}

.offer-card.featured {
    border-color: var(--primary-gold);
    transform: scale(1.05);
    box-shadow: var(--shadow-strong);
}

.offer-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.offer-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gold);
    color: var(--deep-black);
    padding: 8px 25px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
}

.offer-header h3 {
    margin-bottom: 20px;
    color: var(--deep-black);
}

.offer-subtitle {
    color: var(--primary-ochre);
    margin-bottom: 30px;
    font-size: 1.1rem;
    font-weight: 500;
    line-height: 1.4;
}

.offer-features ul {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.offer-features li {
    padding: 8px 0;
    color: var(--deep-black);
    font-size: 1rem;
}

.offer-features strong {
    color: var(--primary-ochre);
}

.offer-note {
    background: var(--cream);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 25px;
    font-style: italic;
}

.exclusive-note {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-ochre));
    color: var(--warm-white);
    font-weight: 500;
}

/* Pourquoi nous */
.why-us {
    background: var(--cream);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.benefit-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--warm-white);
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.benefit-item h3 {
    margin-bottom: 15px;
    color: var(--deep-black);
}

.benefit-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Études de cas */
.case-studies {
    background: var(--warm-white);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.case-card {
    background: var(--warm-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

.case-image {
    height: 250px;
    overflow: hidden;
}

.case-image .image-placeholder {
    height: 100%;
    border-radius: 0;
    background: linear-gradient(135deg, var(--primary-ochre) 0%, var(--primary-gold) 100%);
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    margin-bottom: 10px;
    color: var(--deep-black);
}

.case-concept {
    color: var(--primary-ochre);
    font-weight: 500;
    margin-bottom: 15px;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.case-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-metrics {
    display: flex;
    gap: 20px;
}

.metric {
    background: var(--cream);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--primary-ochre);
    font-weight: 500;
}

/* CTA Final */
.final-cta {
    background: linear-gradient(135deg, var(--deep-black) 0%, var(--charcoal) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 10;
}

.final-cta h2 {
    color: var(--warm-white);
    margin-bottom: 1.5rem;
}

.final-cta p {
    color: var(--accent-gold);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background: var(--deep-black);
    color: var(--warm-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--primary-gold);
    margin-bottom: 15px;
}

.footer-section h4 {
    color: var(--primary-gold);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.footer-section p {
    color: #CCCCCC;
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--primary-gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-mobile {
        display: flex;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        justify-content: space-around;
        gap: 20px;
    }
    
    .offers-grid {
        grid-template-columns: 1fr;
    }
    
    .offer-card.featured {
        transform: none;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-metrics {
        flex-direction: column;
        gap: 10px;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .offer-card {
        padding: 30px 20px;
    }
    
    .amount {
        font-size: 2.5rem;
    }
    
    .benefit-item {
        padding: 30px 15px;
    }
    
    .case-content {
        padding: 20px;
    }
}