/* Variables CSS */
:root {
    /* Couleurs principales */
    --primary-violet: #8B5CF6;
    --primary-indigo: #4F46E5;
    --secondary-gold: #F59E0B;
    --secondary-gold-dark: #D97706;
    
    /* Fond noir */
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-card: #1F1F1F;
    
    /* Accents */
    --accent-light: #C4B5FD;
    --accent-dark: #6D28D9;
    
    /* Texte */
    --text-primary: #FFFFFF;
    --text-secondary: #D1D5DB;
    --text-muted: #9CA3AF;
    
    /* Autres */
    --border-color: rgba(139, 92, 246, 0.3);
    --shadow: 0 0 30px rgba(139, 92, 246, 0.3);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header et Navigation */
.header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-violet), var(--secondary-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 0.8rem;
    color: var(--accent-light);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-violet);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-violet), var(--secondary-gold));
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-violet);
    margin: 3px 0;
    transition: 0.3s;
}

/* Boutons */
.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-violet), var(--primary-indigo));
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--secondary-gold);
    color: var(--secondary-gold);
}

.btn-secondary:hover {
    background: var(--secondary-gold);
    color: var(--bg-primary);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 400px);
    padding: 2rem 0;
}

/* Messages */
.messages-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    max-width: 400px;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    animation: slideIn 0.3s ease-out;
}

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid #10B981;
    color: #10B981;
}

.alert-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid #EF4444;
    color: #EF4444;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-violet);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-top: 2px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h3, .footer-col h4 {
    color: var(--secondary-gold);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--primary-violet);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 2rem;
        display: none;
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        display: flex;
    }
}