:root {
    --background-light: #ffffff;
    --text-light: #000000;
    --background-dark: #1a1a1a;
    --text-dark: #ffffff;
    --border-light: #878787;
    --border-dark: #aaaaaa;
    --publication-light: #e8e7e7;
    --publication-dark: #383838;
}

[data-theme="light"] {
    --background-color: var(--background-light);
    --text-color: var(--text-light);
    --border-color: var(--border-light);
    --publication-color: var(--publication-light);
}

[data-theme="dark"] {
    --background-color: var(--background-dark);
    --text-color: var(--text-dark);
    --border-color: var(--border-dark);
    --publication-color: var(--publication-dark);
}

body {
    font-family: "Roboto", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    border-color: var(--border-color);
    transition: background-color 0.3s, color 0.3s;
    margin: 0;
    padding: 0;
    padding-top: 10px;
}

a {
    text-decoration: none;
    color: var(--text-color);
}

input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

#address {
    white-space: pre-line;
}

.toggle-wrapper {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-right: 10px;
}

.toggle-label {
    width: 60px;
    height: 30px;
    background-color: #cccccc;
    border-radius: 15px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s;
    display: inline-block;
}

.toggle-label::before {
    content: "🌞";
    position: absolute;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid #cccccc;
    background-color: #ffffff;
    left: 0;
    top: 0;
    transition: transform 0.3s, content 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
}

#toggle:checked + .toggle-label::before {
    content: "🌝";
    background-color: #878787;
    border: 1px solid #000000;
    transform: translateX(30px);
}

#toggle:checked + .toggle-label {
    background-color: #000000;
}

@media (min-width: 370px) {
    hr {
        width: 90%;
        border: 1px solid var(--text-color);
    }

    .header {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-pic {
        height: 200px;
        width: 200px;
        border-style: solid;
        border-width: 2px;
        object-fit: cover;
        border-radius: 100px;
    }

    .social-media {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .social-media a {
        margin: 10px;
        text-decoration: none;
    }

    .social-icon {
        width: 30px;
        height: 30px;
        fill: var(--text-color);
        transition: transform 0.3s ease;
    }

    .social-icon:hover {
        transform: scale(1.2);
    }

    .content-wrapper {
        max-width: 768px;
        margin-left: auto;
        margin-right: auto;
    }

    .imprint-wrapper {
        max-width: 768px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 5%;
        padding-right: 5%;
    }

    h1 a {
        all: unset;
        font-size: 1rem;
        text-decoration: underline;
        color: var(--text-color);
        cursor: pointer;
        font-weight: normal;
    }

    .cv-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        margin-left: 5%;
        margin-right: 5%;
        margin-top: 20px;
        margin-bottom: 20px;
        max-width: 768px;
    }

    .cv-item {
        display: flex;
        flex-direction: row;
        width: 100%;
    }

    .cv-timespan {
        width: 60px;
        border-right: 2px solid var(--border-color);
        color: var(--border-color);
        display: flex;
        flex-direction: column-reverse;
        flex-shrink: 0;
        align-items: flex-start;
        justify-content: flex-end;
        padding-bottom: 20px;
    }

    .cv-timespan-date {
        height: 50px;
        width: 100%;
        margin-right: 10px;
        display: flex;
        flex-direction: column-reverse;
        justify-content: center;
        align-items: flex-end;
    }

    .cv-timespan-date div {
        margin: 0;
        font-size: 14px;
        margin-left: 5px;
        margin-right: 10px;
    }

    .cv-entry {
        margin-left: 20px;
        padding-bottom: 20px;
        display: flex;
        flex: 1;
        position: relative;
        flex-direction: column;
        align-items: flex-start;
    }

    .cv-entry-dot {
        position: absolute;
        top: 19px;
        left: -28px;
        width: 10px;
        height: 10px;
        border-radius: 7px;
        background-color: #b1b0b0;
        border: 2px solid var(--background-color);
        transition: border 0.3s;
    }

    .cv-organization {
        width: auto;
        min-width: 120px;
        max-width: 180px;
        padding-top: 17px;
        padding-left: 0;
        margin: 0;
        display: flex;
        flex-shrink: 0;
        gap: 6px;
    }

    .cv-org-location {
        color: var(--border-color);
    }

    .cv-description {
        padding: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .cv-description h2 {
        margin-bottom: 0;
    }

    .publications-container {
        padding-top: 20px;
        text-align: center;
        padding-bottom: 50px;
    }

    .publications {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 100%;
        gap: 20px;
    }

    .publication {
        width: 300px;
        height: 250px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        border-radius: 8px;
        background-color: var(--publication-color);
        transition: transform 0.3s ease-in-out;
        overflow: hidden;
    }

    .publication:hover {
        transform: scale(1.05);
    }

    .publication img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-radius: 8px 8px 0 0;
    }

    .publication h2 {
        font-size: 16px;
        font-weight: 400;
        padding: 0 10px;
        text-decoration: none;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        text-align: center;
        width: 100%;
    }

    .footer {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer div {
        margin-bottom: 10px;
    }
}

@media (min-width: 768px) {
    hr {
        width: 691px;
    }

    .publications {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }

    .publications a {
        text-decoration: none;
        display: block;
        width: 100%;
        max-width: 300px;
    }

    .publications a:nth-child(even) {
        justify-self: start;
    }

    .publications a:nth-child(odd) {
        justify-self: end;
    }

    .publications a:nth-last-child(1):nth-child(odd) {
        grid-column: 1 / -1;
        justify-self: center;
    }
}