:root {
    /* Couleurs */
    --color-white: #ffffff;
    --color-gold: #FFD700;
    --color-black: #000000;
    --color-dark-1: #1a1a1a;
    --color-dark-2: #343434;
    --color-grey-light: #cccccc;
    --color-border-light: #ffffff80;
    --color-error: #FF4444;

    /* Tailles & espacements */
    --max-width-video: 100%;
    --max-width-logo-container: 400px;
    --max-width-logo-img: 90%;
    --max-height-logo-img: 400px;
    --max-width-content: 800px;
    --max-width-carousel: 500px;
    --max-height-carousel-img: 300px;
    --max-width-card: 500px;
    --card-height: 400px;
    --max-width-container: 1200px;

    --spacing-xs: 10px;
    --spacing-sm: 20px;
    --spacing-md: 50px;
    --spacing-lg: 100px;

    --border-width: 1px;
    --border-style: solid;
    --border-radius-circle: 50%;

    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.5);

    --transition-fast: 0.3s ease;
    --transition-faster: 0.3s;

    /* Typographie */
    --font-size-title-accueil: 1.6rem;
    --font-size-carousel-caption: 1.2rem;
    --font-size-text-accueil: 1.2rem;
    --font-size-zi-title: 1.5rem;
    --font-size-zi-paragraph: 1rem;
    --line-height-zi-paragraph: 1.6;
}

/* ===========================
   VIDEO BANNER
   =========================== */
.video-banner {
    position: relative;
    width: var(--max-width-video);
    height: auto;
    overflow: hidden;
}

.video-banner video {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* ===========================
   BUTTON TRANSLATE
   =========================== */
.button-translate {
    background: transparent;
}

/* ===========================
   LOGO
   =========================== */
.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: var(--max-width-logo-container);
    margin: 0 auto;
}

.logo-img {
    width: 100%;
    max-width: var(--max-width-logo-img);
    height: auto;
    max-height: var(--max-height-logo-img);
    object-fit: contain;
}

/* ===========================
   CONTENT CONTAINER
   =========================== */
.content-container {
    max-width: var(--max-width-content);
    width: 90%;
    margin: 0 auto;
    padding: var(--spacing-sm);
    margin-top: var(--spacing-md);
    border: var(--border-width) var(--border-style) var(--color-white);
    color: var(--color-white);
    text-align: center;
}

.content-container h3 {
    color: var(--color-gold);
}

/* ===========================
   CAROUSEL (.button-01)
   =========================== */
.button-01 .carousel {
    max-width: var(--max-width-carousel);
    margin: var(--spacing-sm) auto;
}

.button-01 .carousel img {
    width: 100%;
    max-height: var(--max-height-carousel-img);
    object-fit: cover;
}

.button-01 .carousel-caption {
    position: static;
    padding-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
}

.button-01 .carousel-caption h5 {
    font-size: var(--font-size-carousel-caption);
    font-weight: bold;
}

.button-01 .carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    margin: 0;
}

.carousel-control-prev,
.carousel-control-next {
    position: absolute;
    top: 42%;
    transform: translateY(-50%);
    z-index: 2;
    width: 3%;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    filter: invert(1);
    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    background-size: 80%;
}

.button-01 .carousel-inner {
    position: relative;
}

/* ===========================
   ESPACEMENTS GÉNÉRAUX
   =========================== */
.margin-top-block-accueil {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

/* ===========================
   ZI-SECTION
   =========================== */
.zi-section {
    padding: var(--spacing-sm);
    background-color: var(--color-dark-1);
    color: var(--color-white);
    font-family: Arial, sans-serif;
    border-right: 2px solid #444;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

@media (min-width: 1024px) {
    .zi-section {
        max-width: 800px;
        margin: 0 auto;
        padding-left: 60px;
        padding-right: 60px;
    }
}

.zi-text-block {
    margin-bottom: 30px;
}

.zi-title {
    font-size: var(--font-size-zi-title);
    font-weight: bold;
    color: var(--color-gold);
    margin-bottom: 10px;
}

.zi-paragraph {
    font-size: var(--font-size-zi-paragraph);
    line-height: var(--line-height-zi-paragraph);
    color: var(--color-grey-light);
    margin-bottom: 20px;
}

.zi-error {
    color: var(--color-error);
    font-weight: bold;
}

/* ===========================
   NEWSLETTER BACKGROUND
   =========================== */
.background-bloc-newsletter-accueil {
    background-color: var(--color-dark-2);
}

/* ===========================
   CARD ACCUEIL
   =========================== */
.card-accueil-container {
    display: flex;
    justify-content: center;
    margin: var(--spacing-sm) auto;
    max-width: var(--max-width-container);
    padding: var(--spacing-xs);
}

.card-accueil {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: var(--max-width-card);
    height: var(--card-height);
    border: var(--border-width) var(--border-style) #333;
    box-shadow: var(--box-shadow);
    background-color: var(--color-black);
    cursor: pointer;
}

.media-accueil {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.img-accueil-media {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: var(--color-black);
    border: var(--border-width) var(--border-style) var(--color-border-light);
}

.content-accueil {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-faster);
    padding: var(--spacing-sm);
    text-align: center;
}

.card-accueil:hover .content-accueil,
.card-accueil.active .content-accueil {
    opacity: 1;
    visibility: visible;
}

@media (hover: none) {
    .card-accueil:hover .content-accueil {
        opacity: 0;
        visibility: hidden;
    }
}

/* ===========================
   TITRES & TEXTES ACCUEIL
   =========================== */
.title-accueil {
    font-size: var(--font-size-title-accueil);
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
    text-decoration: underline 2px;
}

.title-accueil-newsletter {
    margin-bottom: var(--spacing-xs);
    text-decoration: underline 2px;
    color: var(--color-gold);
}

.text-accueil {
    font-size: var(--font-size-text-accueil);
    line-height: var(--line-height-zi-paragraph);
    margin-bottom: 15px;
    text-align: center;
}

.link-accueil {
    margin-top: var(--spacing-xs);
}

/* ===========================
   UNDERLINE UTILITIES
   =========================== */
.underline-1 {
    text-decoration: underline 1px;
}

.underline-2 {
    text-decoration: underline 2px;
}