:root {
    --primary: #003481;
    --primary-hover: #3a56d4;
    --secondary: #6c757d;
    --success: #4CAF50;
    --warning: #FF9800;
    --danger: #F44336;
    --light: #f8f9fa;
    --dark: #343a40;
    --card-bg: #fff;
    --border-radius: 10px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Manrope', sans-serif;
    margin: 0;
    padding: 0;
    color: var(--dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;

    background-color: hsla(0,0%,93%,1);
    background-image:
            radial-gradient(at 95% 6%, hsla(188,55%,65%,0.67) 0px, transparent 50%),
            radial-gradient(at 0% 0%, hsla(216,100%,25%,0.51) 0px, transparent 50%),
            radial-gradient(at 25% 100%, hsla(0,0%,93%,0.22) 0px, transparent 50%);

    background-size: cover, 200% 200%;
    background-repeat: no-repeat;
    background-position: center, center;
    animation: gradientAnimation 15s ease infinite;
}


@keyframes gradientAnimation {
    0% {
        background-position: 0% 0%;
    }
    25% {
        background-position: 50% 0%;
    }
    50% {
        background-position: 100% 100%;
    }
    75% {
        background-position: 0% 100%;
    }
    100% {
        background-position: 0% 0%;
    }
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header & Navigation */
/* Header avec effet de flou */
.header {
    position: relative; /* Peut être omis si tu veux le laisser en position par défaut */
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.5); /* Fond très transparent */
    backdrop-filter: blur(10px); /* Effet de flou */
    -webkit-backdrop-filter: blur(10px); /* Pour Safari */
    border-bottom: 1px solid rgba(0, 0, 0, 0.05); /* Légère bordure pour délimiter */
    transition: var(--transition);
}

/* Pour les navigateurs qui ne supportent pas backdrop-filter */
@supports not (backdrop-filter: blur(10px)) {
    .header {
        background-color: rgba(255, 255, 255, 0.9); /* Fond un peu plus opaque comme fallback */
    }
}

/* Ajustement de l'effet de survol pour l'adapter au fond transparent */
.user-info:hover {
    background-color: rgba(0, 0, 0, 0.05); /* Fond légèrement sombre au survol */
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem 1rem;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand i {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.user-info:hover {
    background-color: var(--light);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.logout-btn {
    color: var(--secondary);
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn:hover {
    color: var(--danger);
}

/* Main Content */
main {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid transparent;
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    border-left-color: var(--success);
    color: var(--success);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border-left-color: var(--warning);
    color: var(--warning);
}

.alert-danger {
    background-color: rgba(244, 67, 54, 0.1);
    border-left-color: var(--danger);
    color: var(--danger);
}

.alert-info {
    background-color: rgba(67, 97, 238, 0.1);
    border-left-color: var(--primary);
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
    }

    .nav-brand {
        width: 100%;
        justify-content: center;
        margin-bottom: 0.5rem;
    }

    .nav-links {
        justify-content: center;
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .nav-user {
        justify-content: center;
        width: 100%;
    }
}

/* Footer */
footer {
    padding-top: 1rem;
    text-align: center;
    margin-top: auto;
    font-size: 0.9rem;
    color: var(--secondary);
    box-shadow: 0 -8px 15px rgba(0, 0, 0, 0.08);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

/* Démo pour montrer le header et le contenu */
.demo-content {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow);
}

.title {
    color: var(--primary);
    margin-bottom: 1rem;
}
footer p {
    color: black;
}