:root {
    /* Couleurs principales */
    --tuatara: #1F1F1E;
    --turmeric: #CBC250;
    --bitter: #8B8D7E;
    --suvaGray: #858285;
    --nav-bg: rgba(31, 31, 30, 0.85);
    --transition-speed: 0.3s;
}
/* STYLE DE SECTION PRINCIPALE HERO */
.section-principale {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh;
    padding: 120px 50px;
}

.section-principale-titre {
    font-family: "Playfair Display", serif;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: white;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeSlideIn 1.5s ease-out forwards;
}

.section-principale-texte {
    font-family: "Montserrat", sans-serif;
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 300;
    line-height: 1.6;
    color: #f5f5f5;
    max-width: 800px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeSlideIn 1.5s ease-out 0.3s forwards;
    margin-bottom: 2rem;
    letter-spacing: 0.01em;
    padding: 0 1rem;
}

.section-principale-boutons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeSlideIn 1.5s ease-out 0.6s forwards;
}

.section-principale-btn-portfolio,
.section-principale-btn-contact {
    padding: 15px 30px;
    font-size: 1rem;
    font-weight: bold;
    font-family: "Montserrat", sans-serif;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border-radius: 25px;
}

.section-principale-btn-portfolio {
    background-color: var(--turmeric);
    color: var(--tuatara);
    border: none;
}

.section-principale-btn-portfolio:hover {
    background-color: white;
    color: var(--tuatara);
    box-shadow: 0 4px 12px var(--turmeric);
}

.section-principale-btn-contact {
    background-color: transparent;
    border: 2px solid var(--turmeric);
    color: var(--turmeric);
}

.section-principale-btn-contact:hover {
    background-color: var(--turmeric);
    color: var(--tuatara);
    box-shadow: 0 4px 12px var(--turmeric);
}

@keyframes fadeSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}