/* Variables CSS */


/* Navigation principale */
.navbar {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--navbar-height);
}

/* Logo et marque */
.nav-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: bold;
    font-size: var(--font-size-2xl);
    transition: var(--transition-normal);
}

.brand-link:hover {
    color: var(--secondary-color);
}

.logo {
    height: 40px;
    width: auto;
    margin-right: var(--spacing-sm);
}

.brand-text {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Menu de navigation */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-xl);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
    position: relative;
}

.nav-link i {
    font-size: var(--font-size-lg);
}

.nav-link span {
    font-size: var(--font-size-base);
}

.nav-link:hover {
    color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.1);
    transform: translateY(-2px);
}

/* Effet de soulignement animé */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Menu mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
}

/* Animation du menu hamburger */
.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--navbar-height));
        background-color: var(--bg-primary);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-2xl);
        gap: var(--spacing-md);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-item {
        width: 90%;
        text-align: center;
    }

    .nav-link {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-lg);
        border-radius: var(--border-radius-lg);
    }

    .brand-text {
        font-size: var(--font-size-2xl);
    }

    .logo {
        height: 35px;
    }
}

@media screen and (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-sm);
        height: 60px;
    }

    .brand-text {
        font-size: var(--font-size-xl);
    }

    .logo {
        height: 30px;
    }

    .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
    }
}

/* Animation d'entrée */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-item {
    animation: slideIn var(--transition-slow) ease forwards;
}

.nav-item:nth-child(1) {
    animation-delay: 0.1s;
}

.nav-item:nth-child(2) {
    animation-delay: 0.2s;
}

.nav-item:nth-child(3) {
    animation-delay: 0.3s;
}

.nav-item:nth-child(4) {
    animation-delay: 0.4s;
}

.nav-item:nth-child(5) {
    animation-delay: 0.5s;
}

/* États actifs */
.nav-link.active {
    color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.1);
}

.nav-link.active::after {
    width: 80%;
}

/* Effet de survol pour mobile */
@media (hover: none) {
    .nav-link:hover {
        transform: none;
    }
}