:root {
    /* Charte Couleur - Deep Navy, Magenta, Purple, White, Lavender */
    --bg-dark: #07041A;         /* Deep Navy */
    --bg-card: #120E2A;         /* Lighter Navy for cards */
    --primary-color: #E91E8C;   /* Vibrant Magenta */
    --primary-hover: #C2186F;
    --secondary-color: #A855F7; /* Bright Purple */
    --secondary-hover: #9333EA;
    --text-light: #FFFFFF;      /* Crisp White */
    --text-muted: #B8B3D1;      /* Soft Lavender/Gray */
    --border-color: rgba(184, 179, 209, 0.2);
    
    /* System Fonts */
    --font-headings: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    color: var(--text-light);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* =========================================
   HEADER STYLES
   ========================================= */
#main-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
    min-height: 80px;
}

/* Logo Styles */
.logo-link {
    display: flex;
    align-items: center;
    z-index: 1001;
}

#main-header .logo {
    height: 45px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    display: block;
}

#main-header nav ul {
    display: flex;
    gap: 30px;
    min-height: 27px;
}

#main-header nav a {
    color: var(--text-light);
    font-weight: 600;
    font-family: var(--font-headings);
    transition: color 0.3s ease;
    position: relative;
}

#main-header nav a:hover {
    color: var(--primary-color);
}

#main-header nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

#main-header nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s ease;
}

.menu-toggle:hover {
    color: var(--primary-color);
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-family: var(--font-headings);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    min-height: 48px;
    line-height: 24px;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border-color: var(--text-light);
}
.btn-secondary:hover {
    background-color: var(--text-light);
    color: var(--bg-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}
.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--text-light);
}

/* =========================================
   FOOTER STYLES
   ========================================= */
#main-footer {
    background-color: var(--bg-dark);
    color: var(--text-muted);
    padding: 60px 5% 20px;
    text-align: center;
    min-height: 250px;
    border-top: 1px solid var(--border-color);
}

#main-footer .footer-content {
    max-width: 900px;
    margin: 0 auto;
}

#main-footer p {
    margin-bottom: 15px;
    color: var(--text-muted);
}

#main-footer .footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    min-height: 27px;
    flex-wrap: wrap;
}

#main-footer .footer-links a {
    transition: color 0.3s ease;
    color: var(--text-muted);
    font-weight: 600;
    font-family: var(--font-headings);
}

#main-footer .footer-links a:hover {
    color: var(--primary-color);
}

/* =========================================
   MOBILE RESPONSIVE GLOBAL
   ========================================= */
@media (max-width: 768px) {
    #main-header {
        flex-direction: row;
        background: rgba(7, 4, 26, 0.95);
        padding: 15px 5%;
        min-height: 65px;
    }
    
    #main-header .logo {
        height: 35px;
        max-width: 120px;
    }
    
    .menu-toggle {
        display: block;
    }

    #main-header nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(7, 4, 26, 0.98);
        display: none;
        padding: 20px 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.5);
        border-bottom: 1px solid var(--border-color);
    }

    #main-header nav.active {
        display: block;
    }

    #main-header nav ul {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    #main-header nav a::after {
        display: none;
    }

    #main-footer {
        padding: 40px 5% 20px;
    }
    
    #main-footer .footer-links {
        flex-direction: column;
        gap: 12px;
    }
}