:root {
    --regularFont: 400 14px 'Inter', -apple-system, BlinkMacSystemFont, San Francisco, Helvetica Neue, Helvetica, Roboto, Noto, 'Segoe Ui', Arial, sans-serif;
    --mediumFont: 500 15px 'Inter', -apple-system, BlinkMacSystemFont, San Francisco, Helvetica Neue, Helvetica, Roboto, Noto, 'Segoe Ui', Arial, sans-serif;
    --boldFont: 600 15px 'Inter', -apple-system, BlinkMacSystemFont, San Francisco, Helvetica Neue, Helvetica, Roboto, Noto, 'Segoe Ui', Arial, sans-serif;

    --headerHeight: 80px;
    --popupPhNameHeight: 40px;
    --popupPhDescriptionHeight: 66px;
    --scrollbarWidth: 8px;
}

/******************************* LIGHT THEME *******************************/
:root {
    --bgColor: #fff;
    --color: #262626;
    --accentColor: #007bff;
    --headerBgColor: #fff;
    --disabledBgColor: #ccc;
    --disabledColor: #666;
    --popupColor: #aaa;
    --popupBgColor: rgba(0, 0, 0, 0.9);
    --popupPhDescriptionBgColor: #000;
    --popContentBgColor: #1d1f26;

    --scrollbarThumbColor: #888;
    --scrollbarThumbHoverColor: #666;
    --scrollbarThumbActiveColor: #555;
    --scrollbarTrackColor: var(--bgColor);
}

/******************************* DARK THEME *******************************/
.dark-theme {
    --bgColor: #101318;
    --color: #aaa;
    --accentColor: #66ccff;
    --headerBgColor: #101318;
    --disabledBgColor: #444;
    --disabledColor: #999;
    --popupColor: #aaa;
    --popupBgColor: rgba(0, 0, 0, 0.9);
    --popupPhDescriptionBgColor: #000;
    --popContentBgColor: #1d1f26;

    --scrollbarThumbColor: #888;
    --scrollbarThumbHoverColor: #666;
    --scrollbarThumbActiveColor: #555;
    --scrollbarTrackColor: var(--bgColor);
}

/******************************* RESET *******************************/
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body, html {
    overflow: hidden; /* Prevent scrolling on the main document */
    height: 100%;
    line-height: 1.5;
    background-color: var(--bgColor);
    color: var(--color);
    font: var(--regularFont);
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

button, input, textarea, select {
    font: var(--regularFont);
    color: var(--color);
    border: 1px solid var(--color);
    background: none;
    outline: none;
    border-radius: 4px;
    padding: 5px 12px;
}

ul, ol {
    list-style: none;
}

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

a:hover {
    border-bottom: 1px solid var(--accentColor);
}

button {
    background-color: var(--accentColor);
    cursor: pointer;
}

button:hover {
    background-color: var(--accentColor);
}

button:active {

}

button:focus {

}

button:disabled {
    background-color: var(--disabledBgColor);
    color: var(--disabledColor);
    cursor: not-allowed;
    opacity: 0.7;
}

.debug {
    padding: 0 20px;
}

/******************************* SCROLLBAR *******************************/
.scrollable {
    overflow-x: auto;
    overflow-y: auto
}

@supports (-moz-appearance: none) {
    .scrollable {
        scrollbar-color: var(--scrollbarThumbColor) var(--scrollbarTrackColor);
        scrollbar-width: var(--scrollbarWidth)
    }
}

.scrollable {
    overflow-x: overlay;
    overflow-y: overlay
}

.scrollable::-webkit-scrollbar-track {
    margin-top: 0;
    background-color: var(--scrollbarTrackColor);
}

.scrollable.popup-active::-webkit-scrollbar-track {
    background-color: var(--popContentBgColor);
}

.scrollable::-webkit-scrollbar {
    height: var(--scrollbarWidth);
    width: var(--scrollbarWidth);
}

.scrollable::-webkit-scrollbar-thumb {
    background-color: var(--scrollbarThumbColor);
    border-radius: 4px;
}

.scrollable::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbarThumbHoverColor);
}

.scrollable::-webkit-scrollbar-thumb:active {
    background-color: var(--scrollbarThumbActiveColor);
}

.scrollable::-webkit-scrollbar-corner {
    background-color: initial
}

/******************************* CONTENT *******************************/
.content {
    margin-top: var(--headerHeight);
    height: calc(100vh - var(--headerHeight));
}

/******************************* HEADER *******************************/
.header {
    z-index: 1000;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    justify-content: space-between;
    width: 100%;
    height: var(--headerHeight);
    background-color: var(--headerBgColor);
}

.header.popup-active {
    background-color: var(--popContentBgColor);
}

.header .logo {
    padding: 10px;
    font-size: 20px;
}

.header .theme-toggle {
    padding: 10px;
}

.login_form {
    display: flex;
    gap: 10px;
    padding: 8px 20px 0 0;
}

.user_menu {
    display: flex;
    gap: 10px;
    padding: 8px 20px 0 0;
}

.footer {
    background-color: var(--headerBgColor);
    padding: 10px;
}

/******************************* PAGER *******************************/
.pager {
    width: calc(100% - 20px);
    display: flex;
    justify-content: right;
    padding: 10px;
}

.pager a {
    margin: 0 10px;
}

/******************************* GALLERY *******************************/
.photos {
    width: calc(100% - 20px);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
}

.photo {
    display: block;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    border-radius: 6px;
    background-size: cover;
}

.photo:hover {
    border-bottom: none;
}

.photo .photo-data {
    display: none;
    position: relative;
    width: 100%;
    height: 100%;
}

.photo .photo-name-wrap {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 5px;
    color: #fff;
    background: radial-gradient(circle at 20px 215px, rgba(0, 0, 0, 0.8) 90px, rgba(0, 0, 0, 0) 210px);
    overflow: hidden;
    width: calc(100% - 50px);
}

.photo .photo-name, .photo .auth-name {
    white-space: nowrap;
    font-size: 15px;
    line-height: 1.7;
}

.photo .auth-name {
    font-size: 12px;
}

.photo .photo-open-icon {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 48px;
}

/******************************* WORK *******************************/
.work {
    padding: 10px 20px;
}

.work .work-name {
    text-align: center;
    padding: 0 0 10px 0;
    font: var(--boldFont);
}

.work .work-img {
    margin: 0 auto;
    position: relative;
    max-width: 100%;
}

.work .work-img img {
    position: absolute;
    width: 100%;
    height: auto; /* Ensure proportions are maintained */
}

.work .work-img .high-res {
    opacity: 0;
    cursor: pointer;
}

/******************************* POPUP *******************************/
.popup {
    z-index: 1000;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100vh - var(--headerHeight)); /* Set height to viewport minus header */
    background-color: var(--popupBgColor);
    color: var(--popupColor);
    opacity: 0;
    visibility: hidden;
    margin-top: var(--headerHeight);
    cursor: pointer;
}

.popup-content {
    position: relative;
    max-width: calc(100% - 200px);
    min-height: calc(100vh - var(--headerHeight));
    margin: 0 auto;
    background-color: var(--popContentBgColor);
    cursor: auto;
}

.popup.popup-active {
    opacity: 1;
    visibility: visible;
}

.popup-img {
    cursor: pointer;
    max-height: calc(100vh - var(--headerHeight) - var(--popupPhNameHeight) - var(--popupPhDescriptionHeight));
    max-width: 100%;
    margin: 0 auto;
}

.popup-photo-name {
    text-align: center;
    height: var(--popupPhNameHeight);
    line-height: var(--popupPhNameHeight);
}

.popup-description {
    height: var(--popupPhDescriptionHeight);
    padding: 22px 20px;
    background-color: var(--popupPhDescriptionBgColor);
}

.popup-photo-comments {
    min-height: 300px;
    padding: 22px 20px;
}

/******************************* AUTHOR *******************************/
.author .author-name {
    padding: 10px 10px;
}

/******************************* THE END *******************************/