/* ==========================================================================
   HEADER.CSS - Glassmorphism Sticky Navbar & Mobile Drawer
   Collectif Bouaye Pro
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(12, 30, 52, 0.08);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    transition: var(--transition-fast);
}

.site-header.scrolled .header-container {
    height: 70px;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-brand img {
    height: 48px;
    width: auto;
    transition: var(--transition-fast);
}

.site-header.scrolled .logo-brand img {
    height: 42px;
}

/* Navigation Links */
.main-nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-navy-dark);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2.5px;
    background: linear-gradient(90deg, var(--color-teal-brand), var(--color-orange-brand));
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-btn {
    padding: 0.65rem 1.4rem;
    font-size: 0.9rem;
}

/* Mobile Hamburger Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.mobile-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--color-navy-dark);
    border-radius: 3px;
    transition: var(--transition-normal);
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
@media (max-width: 992px) {
    .mobile-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 380px;
        height: 100vh;
        background: var(--bg-surface);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
        flex-direction: column;
        justify-content: center;
        padding: 3rem 2rem;
        gap: 2.5rem;
        transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
        z-index: 1050;
    }

    .main-nav.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 1.25rem;
        width: 100%;
    }

    .header-actions {
        width: 100%;
    }

    .header-actions .btn {
        width: 100%;
    }
}