body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bg-body-color);
}

header {
    position: relative;
    overflow: hidden;
    background-color: transparent;
    background-size: 400%, 400%;
    color: white;
    padding: 1.5rem 0;
    text-align: center;
    box-shadow: 0 4px 6px var(--shadow-color);
    margin-bottom: 0;
}

header:after {
  content: '';
  display: block;
  z-index: -1;
  position: absolute;
  top: min(-50vw,-50vh); right: min(-50vw,-50vh); bottom: min(-50vw,-50vh); left: min(-50vw,-50vh);
  background-size: 400%, 400%;
  background-image: linear-gradient(135deg, #8a9bff, #a8b9ff, #ff9b9b, #ffc56b);
  animation: gradientShift 60s ease infinite,
             gradientRotate 23.2456s linear infinite;
}

@keyframes gradientRotate {
  to { transform: rotate(360deg) }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 1px 1px 3px var(--shadow-color);
}

header p {
    margin: 0.5rem 0 0;
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
    text-shadow: 1px 1px 2px var(--shadow-color);
}

details {
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

nav {
    display: flex;
    justify-content: center;
    background: linear-gradient(135deg, #2c3e50, #303457);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    margin-top: -15px;
    position: relative;
    z-index: 1;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

a {
    color: var(--hyperlink-color);
}

nav a {
    color: white;
    padding: 1rem 1.5rem;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
    letter-spacing: 0.5px;
}

nav a:hover {
    transform: translateY(-3px);
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

nav a:before {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: white;
    transition: all 0.3s ease;
}

nav a:hover:before {
    width: 80%;
    left: 10%;
}

nav a.active {
    font-weight: 600;
    color: #fff;
}

nav a.active:before {
    width: 80%;
    left: 10%;
    background-color: white;
}

section {
    padding: 2.5rem;
    margin: 1.5rem;
    border-radius: 8px;
    background: var(--bg-content-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

section p{
    text-align: justify;
}

section.active {
    display: block;
    opacity: 1;
}

footer {
    text-align: center;
    padding: 1.5rem 0;
    background: linear-gradient(135deg, #2c3e50, #303457);
    color: white;
    margin-top: auto;
    box-shadow: 0 -2px 4px var(--shadow-color);
}

.list {
    list-style-type: none;
    padding: 0;
}

.list li {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.list li h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--title-color);
    display: flex;
    gap: .5em;
}

.list li h3 img {
    height: 2em;
    width: auto;
}

.authors {
    margin: 0.5rem 0;
    font-style: italic;
    color: var(--emph-color);
}

.orcid {
    display: flex;
    align-items: center;
    color: inherit;
    gap: 0.5em;
    margin-bottom: 1.5rem;
}

.orcid img {
    height: 1.5em;
    width: auto;
}

.show {
    display: block;
}

#home h2 {
    color: var(--title-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

#home p {
    font-size: 1.1rem;
    color: var(--title-color);
    line-height: 1.8;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: stretch;
    }

    nav a {
        text-align: center;
        padding: 1rem;
    }

    section {
        padding: 1.5rem;
        margin: 1rem;
    }

    #home {
        padding: 1.5rem;
        margin: 1rem;
    }
}

.parameters-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: .5em;
}

.language-selector {
    position: relative;
    display: inline-block;
}

.custom-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-button {
    background-color: #2c3e50;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: all 0.3s;
}

.dropdown-button * {
    pointer-events: none;
}

.dropdown-button:hover {
    background-color: #3498db;
    transform: translateY(-2px);
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--bg-content-color);
    box-shadow: 0 8px 16px var(--shadow-color);
    z-index: 1;
    border-radius: 15px;
    right: 0;
    bottom: 100%;
    margin-bottom: 10px;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 0.75rem 1rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    border-radius: 15px;
    gap: 0.5rem;
    transition: background-color 0.3s;
}

.dropdown-content a:hover {
    background-color: #3498db;
    transition: background-color 0.3s ease-in-out;
}

.flag-icon {
    width: 25px;
    height: 25px;
    border-radius: 5px;
}

#dark-mode-toggle-icon {
    font-size: 25px;
    margin: 3px;
}

.profile-image {
    width: 50%;
    max-width: 200px;
    height: auto;
    border-radius: 8px;
    float: right;
    margin: 0 0 0 .5em;
}

.a-block {
    display: block;
    color: inherit;
    text-decoration: inherit;
    border-radius: 10px;
}

.darken-hover:hover {
    background-color: var(--highlight-bg-color);
    transform: translateY(-2px);
    transition: 0.3s ease-in-out;
    box-shadow: 0 2px 5px var(--highlight-shadow-color);
}

.icon {
    height: 1.5em;
    width: 1.5em;
}

li.mail {
    list-style: none;
    position:relative;
}

li.mail::before{
    content:'';
    display: block;
    position: absolute;
    height: 1em;
    width: 1em;
    background-color: currentColor;
    mask: url("/resources/icons/mail.svg");
    mask-size: 1em 1em;
    left: -1.25em;
    top:.33em
}