/* Header Sticky */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9998;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    height: 70px;
    display: flex;
    align-items: center;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.header-spacer {
    height: 70px;
}

/* Mobile Menu Transition */
.mobile-menu {
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
}

.mobile-menu.open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
}

/* Language Selector Styles */
.lang-btn {
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    border-radius: 50%;
    margin: 0 4px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

section {
    scroll-margin-top: 90px;
}

.hamburger svg {
    transition: transform 0.3s ease;
}
.hamburger.open svg {
    transform: rotate(90deg);
}