:root {
    --color-accent: #f00;
    --color-text: #000;
    --color-muted: #888;
    --color-surface: #fff;
    --space-page: 1.5rem;
    --sidebar-width: 222px;
    --transition-fast: 222ms ease;
    --transition-standard: 333ms ease-in-out;
}

/* Base */
html {
    min-height: 100%;
    background: var(--color-surface);
}

body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica Neue", sans-serif;
    height: 100%;
    font-size: 16px;
    color: var(--color-text);
}

/* Layout */
.container {
    display: flex;
    height: 100vh;
}

.fade-transition {
    opacity: 0;
    transition: opacity .333s ease-in-out;
}

.fade-transition.show {
    opacity: 1;
}

.sidebar {
    width: 10vw;
    min-width: var(--sidebar-width);
    height: 100vh;
    overflow-y: auto;
    background-color: var(--color-surface);
    padding: 2rem 1.5rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}   

.header-container {
    display: flex;
    align-items: baseline;
    margin-bottom: 1.25rem;
}

.sidebar h1 {
    font-size: 1.5625rem;
    margin: 0 0 0.25rem 0;
}

.sidebar h1 a {
    text-decoration: none;
    color: var(--color-accent);
    font-size: inherit;
}

.sidebar h1 a:hover,
.sidebar h1 a.active {
    color: var(--color-accent);
}

.sidebar ul {
    list-style-type: none;
    padding: 0;
    flex-grow: 1;
}

.sidebar li {
    margin-bottom: 0.625rem;
}

.sidebar a {
    text-decoration: none;
    font-size: 1.25rem;
    color: black;
    transition: color 0.3s ease;
}

.sidebar a.active {
    color: black;
    font-weight: bold;
}

.content {
    flex-grow: 1;
    min-width: 0;
    padding: 0 var(--space-page);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
}

#sperm-simulation {
    width: 100%;
    min-height: 93vh;
    min-height: 93dvh;
    max-height: 93vh;
    max-height: 93dvh;
    overflow: hidden;
    box-sizing: border-box;
    position: relative; 
}

.no-scrolling {
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
}

.home-content {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.home-content img {
    max-width: 100%;
    max-height: 100vh;
    max-height: 100dvh;
    object-fit: contain;
}

.content-wrapper > * {
    max-width: 100%;
}

.content h2#page-title {
    font-size: 1.5625rem;
    margin: 0 0 1.25rem 0;
    color: black;
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
    margin-bottom: 1rem;
}

.content p,
.content ul,
.content ol {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.content h1 {
    font-size: 1.5625rem;
    color: black;
    margin-top: 0;
    margin-bottom: 1.25rem;
}

.content p {
    font-size: 1.25rem;
    margin-bottom: 0.5em;
    
}

.content img[src$=".gif"] {
    /* You can add specific styles for GIFs here if needed */
    /* For example: */
    border: 0px solid #ddd;
    border-radius: 4px;
    padding: 5px;
}

/* If you want to center GIFs */
.gif-container {
    text-align: center;
    margin-bottom: 1rem;
}

.gif-container img {
    display: inline-block;
    max-width: 100%;
    height: auto;
}

/* Styles for images outside project-grid */
.content img,
.content img[src$=".gif"] {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}


.image-wrapper {
    margin: 20px 0;
    margin-right: 2rem;
    max-height: 100vh;
    text-align: center;
    overflow: hidden; /* Prevent overflow */
}

.image-wrapper img {
    overflow: hidden;
    max-height: 93vh; /* Limit the image height to the viewport height */
}

.project-header {
    display: flex;
    align-items: center;
    margin-top: 1.25rem;
    margin-bottom: -2rem;
}
  
.project-nav {
    display: flex;
    align-items: center;
    margin: 0 0 1.25rem 1rem;
}
  
.project-link {
    color: #888;
    text-decoration: none;
    margin-right: 1rem;
    transition: color 0.3s ease;
    font-size: 1.5625rem;
    font-weight: bold;
    line-height: 1;
} 

.project-link:hover {
    color: blue;
}

.project-link.active {
    color: red;
}

  #page-title {
    margin: 0;
    padding: 0;
    font-size: 1.5625rem;
    font-weight: bold;
    color: #000;
    line-height: 1;
  }

  .separator {
    margin: 0 0 1.25rem 0.75rem;
    color: black;
    font-weight: bold;
    font-size: 1.5625rem;
    line-height: 1;
  }

  #page-title.project-link {
    color: #000;
  }
    
  #project-content {
    width: 100%;
    margin-top: 2rem; /* Add margin-top to create space between the line and gallery */ 
  }
  
  .project-gallery {
    width: 100%;
    height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    }

    .gallery-image-container {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        height: 100%;
    }
  
    .gallery-image {
        max-width: 90%;
        max-height: 90%;
        object-fit: contain;
        cursor: pointer;
    }
  
    .gallery-nav {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        font-size: 1.5rem;
        padding: 1rem;
        cursor: pointer;
        z-index: 1;
        color: black;
        font-size: 0;
    }

    .gallery-prev::before,
    .gallery-next::before {
        font-size: 1.5rem;
    }

    .gallery-prev::before { content: '←'; }
    .gallery-next::before { content: '→'; }
    
  
    .gallery-prev {
    left: 1rem; /* Move the left arrow outside the gallery */
  }
  
  .gallery-next {
    right: 1rem; /* Move the right arrow outside the gallery */
  }

.project-gallery:focus {
    outline: none;
}

.gallery-status {
    position: absolute;
    bottom: 1rem;
    font-size: 0.9rem;
}

.gallery-status {
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

  /* Justify row class for equal spacing */
.justify-row {
    display: flex;
    justify-content: flex-start; /* Distributes space evenly */
    flex-wrap: wrap; /* Allows wrapping to the next line */
    margin: 0 -0.5rem; /* Adjusts margin for spacing */
} 

.image-frame {
    position: relative;
    overflow: hidden; /* Hides overflow for zoom effect */
    margin: 0.5rem; /* Space around each image */
    flex: 0 0 calc(25% - 1rem);
    width: calc(25% - 1rem);
    max-width: calc(25% - 1rem);
    height: auto; /* Maintain aspect ratio */
    box-sizing: border-box;
    transition: box-shadow 0.3s ease, opacity 0.3s ease; /* Smooth transition for hover effects */
    border: 0;
    padding: 0;
    background: transparent;
}

.image-frame img {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%; /* Ensures image fills the frame */
    max-height: 100%; /* Maintain aspect ratio */
    margin: 0; /* Remove any default margin */
    padding: 0; /* Remove any default padding */
    transition: opacity 0.4s ease;
}

.image-frame img.loaded {
    opacity: 1;
}

/* Subtle hover effect */
.image-frame:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2); /* Subtle shadow on hover */
    opacity: 0.9; /* Slightly reduce opacity on hover */
    cursor: pointer;
}

.image-frame:focus-visible,
.gallery-nav:focus-visible,
.mobile-nav-toggle:focus-visible,
a:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .fade-transition,
    .content-wrapper,
    .image-frame img,
    .mobile-sidebar,
    .mobile-nav-toggle i,
    .sidebar a,
    .project-link {
        animation: none !important;
        transition: none !important;
    }
}

/* TRIP */

.trip-gallery {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
    height: calc(100vh - 100px);
    overflow-x: auto;
    padding-right: 2rem;
}

.trip-landscape-container,
.trip-portrait-container {
    display: flex;

    height: 100%;
}

.trip-landscape-container {
    flex: 2;
    gap: 1.5rem;
}

.trip-portrait-container {
    flex: 3;
    gap: 1.5rem;
}

.trip-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 100%;
}

.trip-frame {
    background: #000;
    padding: 0.6rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1), 0 6px 20px rgba(0, 0, 0, 0.05);
    max-width: 200px;
    height: 135px;
    margin: 0 auto;
    transition: box-shadow 0.3s ease;
}

.trip-frame:hover {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15), 0 10px 30px rgba(0, 0, 0, 0.1);
}

.trip-frame.landscape {
    width: 180px; /* Adjust this value as needed */
}

.trip-inner-frame {
    background: #fff;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 0.5rem;
}

.trip-inner-frame.portrait {
    padding: 0.5rem 0.5rem;
    width: 100px;
}

.trip-frame img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    margin: 0;
    box-shadow: none;
    scale: 0.75;
}

.trip-content {
    opacity: 0;
    transition: opacity 1s ease;
}

.trip-content.loaded {
    opacity: 1;
}

.content-wrapper {
    max-width: 100%;
    width: 100%;
    margin: 0 auto 1.25rem auto;
    padding: 1rem;
    box-sizing: border-box;
    opacity: 1;
    transition: opacity 0.333s ease-in-out;
}

.content-wrapper.fade-out {
    opacity: 0;
}

#project-content {
    opacity: 1;
    transition: opacity .222s ease-in-out;
}

#project-content.fade-out {
    opacity: 0;
}

.sidebar {
    z-index: 1000;
}

.mobile-nav-container {
    display: none;
}

.sidebar,
.project-header,
.mobile-nav-header {
    -webkit-user-select: none;
    user-select: none;
}


/* Hide both images by default */
.desktop-image, .mobile-image {
    display: none;
}

.hide-paragraphs p {
    color: white;
}

.project-container {
    display: flex;
    flex-direction: column;
    min-width: 100%;
}

.text-container {
    margin-bottom: 1rem;
    margin-top: -1rem;
    text-align: justify;
}

.text-container p {
    margin-bottom: 1rem;
    font-size: 16.5px;
    max-width: 98%;
    font-family: "Helvetica Neue", sans-serif;
}

@media (min-width: 769px) {
    .desktop-image {
        display: none;
    }
}

/* Responsive */
@media (max-width: 768px) {

    .fade-in-image {
        opacity: 0;
        transition: opacity 0.5s ease-in-out;
    }

    .container {
        flex-direction: column;
        height: 100%;
        overflow: hidden;
    }

    .mobile-image {
        display: none;
    }

    .sidebar {
        display: none;
    }

    .mobile-nav-container {
        display: block;
        padding: 1rem;
        z-index: 1001;
    }

   .mobile-nav-header {
        display: flex; 
        justify-content: space-between; 
        align-items: center; 
        padding: 0rem; 
        background-color: white; 
        position: sticky; 
        top: 0; 
        z-index: 1001; 
    }

    .mobile-title {
        font-size: 1.5625rem;
        margin: 0 0 0rem 0;
        z-index: 1001;
    }

    .mobile-title a {
        text-decoration: none;
        color: red;
        font-weight: bold;
        z-index: 1001;
    }

    .mobile-nav-toggle {
        position: fixed;
        top: 1rem;
        right: 1rem;
        z-index: 1000;
        font-size: 1.5rem;
        background: none;
        border: none;
        color: black;
        display: block;
        cursor: pointer;
        padding: 0;
        line-height: 1;
    }

    .mobile-sidebar {
        display: block;
        position: fixed;
        top: -1rem;
        left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        box-sizing: border-box;
        background-color: var(--color-surface);
        z-index: 999;
        padding: 4rem 1rem 1rem;
        transition: transform 0.666s ease;
        transform: translateX(-100%);
    }

    .mobile-sidebar[inert] {
        visibility: hidden;
    }
    
    .mobile-sidebar.active {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }

    /* Add transition for the chevron icon */
    .mobile-nav-toggle i {
        transition: transform 0.3s ease, font-size 0.3s ease;
        font-size: 1.7rem;
    }

    .mobile-nav-toggle i.rotate {
        transform: rotate(180deg);
    }

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

    .mobile-sidebar li {
        margin-bottom: 1rem;
    }

    .mobile-sidebar a {
        text-decoration: none;
        font-size: 1.25rem;
        color: black;
    }

    .content {
        width: 100%;
        padding: 0;
        box-sizing: border-box;
    }

    #project-content {
        opacity: 1;
    }

    #project-content.fade-out {
        opacity: 0;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 0.5rem; /* Reduce spacing between Ceramics and Artifact */
        margin-top: 2.77rem;
        opacity: 1 !important;
        transition: none !important; 
    }

    .project-nav {
        display: flex;
        flex-direction: column;
        align-items: flex-start !important;
        margin-top: -0.5rem;
        padding-left: 1rem; /* Align project links */
    }

    .project-link {
        margin-bottom: 0.5rem;
        position: relative;
        padding-left: 1.5rem;
    }

    .project-link::before {
        content: 'ㄴ';
        position: absolute;
        left: 0;
        top: 0;
    }

    .content-wrapper {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 1rem; 
        margin-top: -3rem;
        padding-bottom: 10rem;
    }

    .project-grid > div {
        width: 100%;
    }

    .image-frame {
        flex-basis: calc(100% - 1rem);
        width: calc(100% - 1rem);
        max-width: 100%;

    }

    .trip-gallery {
        flex-direction: column;
        height: auto;
        overflow-x: visible;
        padding-right: 0;
    }

    .trip-landscape-container,
    .trip-portrait-container {
        flex-direction: column;
        height: auto;
    }

    .trip-frame {
        max-width: 100%;
        height: auto;
        margin-bottom: 1rem;
    }

    .separator {
        display: none;
    }

    /* Remove touch highlight effect on mobile devices */
    * {
        -webkit-tap-highlight-color: transparent;
    }

    .text-container {
        margin-top: -3rem;
        margin-bottom: 1rem;
        text-align: left;
    }

    .image-wrapper {
        margin: 20px 0;
        margin-right: 0rem;
        text-align: center;
    }
}

#project-content em {
    font-style: italic;
}

#project-content strong {
    font-weight: bold;
}

#project-content u {
    text-decoration: underline;
}