:root {
    /* Palette Chromatique - L'Éminence Discrète */
    --surface: #faf8ff;
    --surface-low: #f2f3ff;
    --surface-lowest: #ffffff;
    --on-background: #131b2e;
    --on-surface-variant: #434655;
    
    --primary: #004ac6;
    --on-primary: #ffffff;
    --primary-container: #2563eb;
    
    --tertiary: #6c5022; /* Or mat (Prestige) */
    --outline-variant: rgba(195, 198, 215, 0.15); /* Ghost Border */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--surface);
    color: var(--on-background);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Manrope', sans-serif;
    letter-spacing: -0.02em;
    color: var(--on-background);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* HERO SECTION */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 6rem 8%;
    min-height: 90vh;
    align-items: center;
    background-color: var(--surface);
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--tertiary);
    background-color: var(--surface-low);
    border-radius: 9999px;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    margin-bottom: 3rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem; /* lg */
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
    box-shadow: 0 12px 32px rgba(0, 74, 198, 0.15); /* Élévation tonale diffuse */
}

.btn-primary:hover {
    background-color: var(--primary-container);
    transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(0, 74, 198, 0.25);
}

.btn-ghost {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--outline-variant);
}

.btn-ghost:hover {
    background-color: var(--surface-low);
}

/* FINANCIAL SUMMARY */
.financial-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-top: 3rem;
    border-top: 1px solid var(--outline-variant); /* Exception for structural balance */
}

.stat-label {
    display: block;
    font-family: 'Manrope', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--on-surface-variant);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.stat-value {
    display: block;
    font-family: 'Manrope', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

/* HERO MOCKUP LAYERED */
.hero-image {
    position: relative;
    z-index: 1;
}

.main-mockup {
    border-radius: 1rem 1rem 0 0; /* Asymétrie: coins haut arrondis seulement */
    box-shadow: 0 32px 64px rgba(19, 27, 46, 0.08); /* Ombre ambiante */
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.hero-image:hover .main-mockup {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}


/* SHOWCASE GALLERY */
.showcase {
    padding: 6rem 8%;
    background-color: var(--surface-low); /* Variation de volume structurale */
}

.section-header {
    max-width: 600px;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--on-surface-variant);
    font-size: 1.125rem;
}

.gallery {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

/* Gallery Items */
.gallery-item {
    background-color: var(--surface-lowest);
    border-radius: 1rem;
    overflow: hidden;
    /* No borders! */
    display: flex;
    box-shadow: 0 12px 32px rgba(19, 27, 46, 0.03); /* Soft lift */
}

.item-text {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.item-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.item-text p {
    color: var(--on-surface-variant);
}

.item-image {
    background-color: var(--surface); /* Pour adoucir les bords de mockups blancs */
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.large {
    flex-direction: row;
}
.large .item-text { flex: 1; }
.large .item-image { flex: 2; border-left: 1px solid var(--outline-variant); }

.gallery-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.medium, .split {
    flex-direction: column;
}

.medium .item-image, .split .item-image {
    border-top: 1px solid var(--outline-variant);
    max-height: 600px;
    overflow: hidden;
    padding-top: 2rem;
}

.medium .item-image img, .split .item-image img {
    border-radius: 0.5rem 0.5rem 0 0;
    box-shadow: 0 12px 32px rgba(19, 27, 46, 0.05);
    max-width: 85%;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 4rem 5%;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .main-mockup {
        transform: none;
    }
    
    .large {
        flex-direction: column;
    }
    .large .item-image {
        border-left: none;
        border-top: 1px solid var(--outline-variant);
    }
    
    .gallery-row {
        grid-template-columns: 1fr;
    }
}