/* ========== HEADER ========== */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}
.header-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}
.logo-img { height: 50px; }

.menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 2;
}
.hamburger {
    width: 25px;
    height: 3px;
    background: var(--secondary-color);
    border-radius: 3px;
}

.sidebar-menu {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100%;
    background: var(--white);
    z-index: 1001;
    transition: var(--transition);
    padding: 40px 20px;
    box-shadow: 5px 0 15px rgba(0,0,0,0.1);
}
.sidebar-menu.active { left: 0; }
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 1000;
}
.menu-overlay.active { display: block; }

.menu-list { margin-top: 30px; }
.menu-item { margin-bottom: 15px; }
.menu-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--secondary-color);
    padding: 10px;
    border-radius: 5px;
}
.menu-link:hover { background: var(--light-gray); color: var(--primary-color); }

@media (max-width: 768px) {
    .header-container {
        flex-direction: row;
        justify-content: space-between;
    }
    .header-logo {
        position: static;
        transform: none;
        flex-grow: 1;
        text-align: center;
    }
    .menu-toggle {
        order: -1;
    }
    .sidebar-menu {
        width: 250px;
    }
}