/* Shared avicon header (scoped to avoid breaking other page styles) */
.site-header {
    --av-primary: #0d6efd;
    --av-text-main: #051645;
    --av-text-muted: #6c757d;
    --av-white: #ffffff;
    padding: 1.5rem 0;
    background-color: var(--av-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.site-header .container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.site-header .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-header .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

.site-header .logo img {
    height: 32px;
    width: auto;
}

.site-header .main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-header .nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-header .nav-links a {
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--av-text-muted);
    text-decoration: none;
    transition: color 0.2s, border-color 0.2s;
    padding-top: 6px;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.site-header .nav-links a:hover,
.site-header .nav-links a.active {
    color: var(--av-text-main);
}

.site-header .nav-links a.active {
    border-bottom-color: var(--av-text-main);
}

.site-header .nav-links .dropdown a {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

.site-header .login-link {
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    color: var(--av-text-main);
    text-decoration: none;
}

.site-header .btn-avicon {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    background: linear-gradient(90deg, #2563eb 0%, #2563eb 75%, #06b6d4 100%);
    color: #fff;
    border: none;
    white-space: nowrap;
}

.site-header .btn-avicon:hover {
    background: linear-gradient(90deg, #1d4ed8 0%, #1d4ed8 75%, #0891b2 100%);
    color: #fff;
}

.site-header .mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.site-header .mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--av-text-main);
    border-radius: 2px;
    display: block;
    transition: all 0.2s;
}

.site-header .lang-menu {
    min-width: 160px;
}

@media (max-width: 1024px) {
    .site-header .main-nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--av-white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        height: calc(100vh - 70px);
        overflow-y: auto;
        z-index: 999;
        align-items: flex-start;
    }

    .site-header .main-nav.active {
        left: 0;
    }

    .site-header .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
    }

    .site-header .nav-actions {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
        margin-top: 1rem;
    }

    .site-header .mobile-menu-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .site-header .container {
        padding: 0 24px;
    }
}