/* ==============================
   VARIABLES CSS
   ============================== */
:root {
    /* Colors */
    --color-navbar-bg: #343434;
    --color-text: #ffffff;
    --color-accent: #FFD700;
    --color-nav-hover-bg: transparent;
    --color-card-bg: #343434;
    --color-card-btn-bg: #444444;
    --color-card-btn-hover-bg: #555555;
    --color-card-btn-hover-border: #FFD700;
    --color-card-btn-hover-shadow: rgba(0, 0, 0, 0.15);
    --color-link-active: #FFD700;

    /* Spacing */
    --spacing-xs: 10px;
    --spacing-sm: 15px;
    --spacing-md: 20px;
    --spacing-lg: 50px;
    --spacing-gap: 20px;

    /* Border & Radius */
    --radius-sm: 5px;

    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.5);

    /* Typography */
    --fs-nav: 18px;
    --fs-title: 2rem;
    --fs-text: clamp(1rem, 1.5vw, 1.3rem);

    /* Transitions */
    --transition-default: all 0.3s ease;
}

/* ==============================
   NAVBAR OFFRE
   ============================== */
.offre-navbar {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-navbar-bg);
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
}

@media (max-width: 768px) {
    .offre-navbar {
        justify-content: space-between;
    }
}

.offre-navbar-toggler {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 24px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .offre-navbar-toggler {
        display: block;
    }
}

.offre-navbar-collapse {
    display: flex;
    justify-content: center;
}

@media (max-width: 768px) {
    .offre-navbar-collapse {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--color-navbar-bg);
        position: absolute;
        top: 60px;
        left: 0;
        padding: var(--spacing-xs) 0;
        z-index: 99999;
    }
    .offre-navbar-collapse.active {
        display: flex;
    }
}

.offre-navbar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--spacing-xs);
}

@media (max-width: 768px) {
    .offre-navbar-nav {
        flex-direction: column;
        align-items: center;
    }
    .offre-navbar-nav li {
        width: 100%;
        text-align: center;
    }
}

.offre-navbar-nav a {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--fs-nav);
    padding: var(--spacing-xs) var(--spacing-sm);
    display: inline-block;
    transition: var(--transition-default);
}

.offre-navbar-nav a.active,
.offre-navbar-nav li:hover > a {
    color: var(--color-link-active);
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .offre-navbar-nav a {
        padding: var(--spacing-xs) 0;
        width: 100%;
        border-top: 1px solid #555;
    }
    .offre-navbar-nav a:first-child {
        border-top: none;
    }
}

/* ==============================
   TITRE OFFRE
   ============================== */
.title-offre {
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.title-offre h3 {
    font-size: var(--fs-title);
    text-transform: uppercase;
    letter-spacing: 2px;
    background: linear-gradient(90deg, var(--color-accent), #EFB810);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
    margin: auto;
    position: relative;
}

.title-offre p {
    font-size: var(--fs-text);
    color: var(--color-text);
}

/* ==============================
   SECTION & GRID
   ============================== */
.section-offre {
    padding: var(--spacing-md);
}

.offre-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-gap);
    padding: var(--spacing-md);
}

@media (max-width: 1200px) {
    .offre-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .offre-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .offre-grid {
        grid-template-columns: 1fr;
    }
}

/* ==============================
   CARDS OFFRE
   ============================== */
.offre-card {
    background-color: var(--color-card-bg);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-default);
    overflow: hidden;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.offre-card h3 {
    font-size: 1.2em;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.offre-card p {
    font-size: 0.9em;
    margin-bottom: var(--spacing-md);
    line-height: 1.4em;
}

.offre-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* ==============================
   BOUTONS CARDS
   ============================== */
.offre-card-button {
    display: inline-block;
    width: 100%;
    text-align: center;
    padding: var(--spacing-xs) 0;
    font-size: 1rem;
    font-weight: bold;
    color: var(--color-text);
    background-color: var(--color-card-btn-bg);
    border: none;
    cursor: pointer;
    transition: var(--transition-default);
}

.offre-card-button:hover {
    background-color: var(--color-card-btn-hover-bg);
    box-shadow: 0 0 5px var(--color-card-btn-hover-shadow);
    border: 1px solid var(--color-card-btn-hover-border);
    color: var(--color-accent);
    transform: scale(1.05);
}

/* ==============================
   BOUTON VALIDE/CLOSE
   ============================== */
.offre-card-valid-close {
    background-color: var(--color-card-bg);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    border: 1px solid var(--color-text);
}

.offre-card-valid-close:hover {
    background-color: var(--color-accent);
    color: #000;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 576px) {
    .offre-card {
        height: auto;
    }
}