interstellar_ai/app/styles/header.css

header {
    position: relative;
    padding: 0 20px;
    width: 100%;
    height: 10dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1em;
    z-index: 999;
}

/* Hamburger button styles */
.hamburger {
    position: absolute;
    left: 5vw;
    display: flex; /* Always show hamburger button */
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 4px;
    transition: 0.3s;
}

.hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 10px);
}
.hamburger.open span:nth-child(2) {
    opacity: 0;
}
.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -10px);
}

/* Navigation links (hidden in header, shown in dropdown) */
.nav-links {
    display: none; /* Default hidden */
    position: absolute;
    top: 10vh; /* Adjust as needed */
    left: 0;
    background-color: var(--burger-menu-background-color);
    width: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px auto;
    margin: auto;
}

.nav-links.active {
    display: flex; /* Show when active */
    height: fit-content;
}

.nav-btn {
    background-color: var(--input-button-color);
    border: none;
    font-size: 0.9em;
    height: 50px; /* Consistent height */
    border-radius: 5px;
    padding: 10px auto;
    font-family: var(--font-family);
    width: 100%; /* Full width */
    text-align: center; /* Center text */
    margin: 4px auto;
}

.nav-btn:hover {
    background-color: var(--input-button-hover-color);
}

/* Logo styles */
.header-logo {
    width: 250px;
    height: 5vh;
    background-image: url(../../public/img/logo.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    background-color: transparent;
    border: none;
}

/* Login button styles */
.login-button-container {
    position: absolute;
    top: 0.1vh;
    right: 1vw;
    height: 100%;
    display: flex;
    align-items: center;
}

.header-login-button {
    height: 100%;
    width: max-content;
    font-size: var(--font-size);
    padding: 0.5vw 1vw;
    background-color: var(--input-button-color);
    color: var(--text-color);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-family: var(--font-family);
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-login-button:hover {
    background-color: var(--input-button-hover-color);
}

.show-hide-btn{
    display: flex;
    align-items: center;
    width: fit-content;
    align-self: left;
    position: absolute;
    left: 10vw;
    cursor: pointer;
    padding: 10px;
}