/* =================================
   STRIPPED CLASSICISM AESTHETIC
   Art Deco meets Modernism
   ================================= */

:root {
    --bg-color: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #555555;
    --accent-color: #000000;
    --border-style: 1px solid #1a1a1a;
    --deco-border: 3px double #1a1a1a;
}

/* Theme classes on html element (applied by inline script to prevent flash) */
html.light-theme {
    --bg-color: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #555555;
    --accent-color: #000000;
    --border-style: 1px solid #1a1a1a;
    --deco-border: 3px double #1a1a1a;
}

html.dark-theme {
    --bg-color: #1a1a1a;
    --text-main: #e8e8e8;
    --text-muted: #aaaaaa;
    --accent-color: #ffffff;
    --border-style: 1px solid #e8e8e8;
    --deco-border: 3px double #e8e8e8;
}

/* Document body styles */
body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Sulphur Point', sans-serif;
    font-weight: 300;
    line-height: 1.7;
    letter-spacing: 0.02em;
    font-size: 1rem;
    transition: background-color 0.5s, color 0.5s;
}
 

/* =================================
   TYPOGRAPHY - Classic vs Modern
   ================================= */

h1 {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    font-weight: normal;
}

h2, h3, h4, h5, h6 {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    font-weight: normal;
}

h2 {
    font-size: 1.75rem;
    border-bottom: var(--deco-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    display: block;
    width: 100%;
}

/* Hyperlink styles */
a {
    color: var(--text-main);
    text-decoration: underline;
    font-style: italic;
}
a:hover {
    color: var(--text-main);
    text-decoration: underline;
}

hightlight {
    background-color: #f0f0f0;
    padding: 0 4px;
    border-radius: 2px;
    font-weight: 500;
}

.dark-theme hightlight {
    background-color: #3a3a3a;
    color: #ffffff;
}

.text-primary {
    color: var(--text-muted) !important;
    font-size: 1.2rem;
}


/* Styles for user selection */
::selection {
    background-color: #ffb699;
    transition: 0.5s;
}

/* Light theme style for user selection */
.light-theme ::selection {
    background-color: #ffb699;
}

/* Dark theme style for user selection */
.dark-theme ::selection {
    background-color: #545454;
}


/* Code-style text for research interest */
code {
    font-family: "Consolas";
    color: #333;
    background-color: #f1f1f1;
    padding: 2px 4px 2px 4px;
    font-size: 83%;
    border-radius: 5px;
    transition: 0.5s;
}
.light-theme code {
    color: #fff;
    background-color: #909090;
}
.dark-theme code {
    color: #333;
    background-color: #f1f1f1;
}

/* Code container styles */
.codebox {
    font-family: "Consolas";
    color: #333;
    border-left: 4px solid #4a5568;
    padding: 0.25rem 0 0.25rem 0.75rem;
    opacity: 0.85;
    font-size: 89%;
    transition: 0.5s;
}
.light-theme .codebox {
    color: #333;
    background-color: #f5f5f5;
}
.dark-theme .codebox {
    color: #fff;
    background-color: #2d2d2d;
}


/* =================================
   PROFILE CONTAINER - Sidebar
   ================================= */

.profile-container {
    text-align: center;
    margin-bottom: 2rem;
}

/* Border styles for profile picture */
.ring-container {
    display: flex;
    align-items: center;
    justify-content: center;
}
.ring {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    box-sizing: border-box;
    position: relative;
}
.hollow-ring {
    width: 152px;
    height: 152px;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #ffffff;
    z-index: 1;
    transition: 0.5s;
}
.light-theme .hollow-ring {
    background-color: #ffffff;
}
.dark-theme .hollow-ring {
    background-color: #333333;
}
.profile-image {
    width: 152px;
    height: 152px;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid #000;
    outline: 1px solid #000;
    outline-offset: 4px;
    z-index: 2;
}
.light-theme .profile-image {
    border: 1px solid #000;
    outline: 1px solid #000;
}
.dark-theme .profile-image {
    border: 1px solid #fff;
    outline: 1px solid #fff;
}


/* =================================
   PROFILE EMAIL
   ================================= */

.profile-email {
    text-align: center;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.profile-email a {
    color: var(--text-main);
    text-decoration: underline;
    font-style: normal;
    font-family: 'Fira Code', monospace;
}

.profile-email a:hover {
    text-decoration: underline;
}

/* =================================
   SOCIAL ICONS - Minimalist
   ================================= */

.social-icons {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-icons .social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: transform 0.2s ease;
}

.social-icons .social-icon i {
    color: var(--accent-color) !important;
    font-size: 1.2rem !important;
}

.social-icons .social-icon:hover {
    transform: translateY(-2px);
}

.social-icons .social-icon:hover i {
    transform: translateY(-2px);
}


/* =================================
   PROFILE MENU - Minimalist Links
   ================================= */

.profile-menu {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.profile-menu-item {
    display: block;
    text-align: center;
    padding: 0.5rem;
    border: 1px solid var(--accent-color);
    color: var(--text-main);
    text-decoration: none;
    font-style: normal;
    transition: all 0.3s;
}

.profile-menu-item .menu-label {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
}

.profile-menu-item:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    text-decoration: none;
}

.profile-menu-item.active {
    background: var(--accent-color);
    color: var(--bg-color);
}


/* =================================
   CONTACT CARD - Art Deco Flip
   ================================= */

.contact-card-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.95);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.dark-theme .contact-card-overlay {
    background: rgba(26,26,26,0.95);
}


/* Styles for information card */
.information_card {
    font-family: 'Sulphur Point', sans-serif;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-info-card {
    background: var(--bg-color);
    color: var(--text-main);
    padding: 2rem;
    border: var(--deco-border);
    box-shadow: 10px 10px 0 rgba(0,0,0,0.1);
    max-width: 500px;
}

.card-name {
    font-family: 'Poiret One', cursive;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.contact-info-detail {
    margin-bottom: 1.5rem;
    text-align: center;
}

.contact-info-detail p {
    margin: 0.25rem 0;
    line-height: 1.6;
    color: var(--text-main);
}

.contact-info-detail strong {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
    color: var(--accent-color);
}

.contact-info-detail a {
    color: var(--text-muted) !important;
    text-decoration: underline;
}


/* =================================
   PUBLICATIONS/PROJECTS - Pillar Design
   ================================= */

#projects {
    margin: 0px;
}

.project {
    margin-bottom: 2.5rem;
    border-left: 2px solid var(--accent-color);
    padding-left: 1.5rem;
}

.project img {
    border: 1px solid #eee;
}

.project object,
.project embed {
    border: 1px solid var(--border-style);
    background: var(--bg-color);
}

.project-pdf {
    min-height: 300px;
    max-height: 400px;
}

.dark-theme .project object,
.dark-theme .project embed {
    filter: invert(0.9) hue-rotate(180deg);
}

.project a[href*="PDF"],
.project a[href*="CODE"],
.project a[href*="DEMO"],
.project a[href*="SLIDES"],
.project a[href*="TALK"],
.project a[href*="POSTER"] {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
}


/* =================================
   FILTER BUTTONS - Art Deco Style
   ================================= */

#filters-project .filter-button {
    background: transparent;
    border: 1px solid #000;
    color: #000;
    padding: 5px 15px;
    margin-right: 5px;
    margin-bottom: 5px;
    font-family: 'Poiret One', cursive;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    border-radius: 0;
    transition: all 0.3s;
}

#filters-project .filter-button:hover,
#filters-project .filter-button.active {
    background: #000;
    color: #fff;
}

/* Light theme styles for filter button */
.light-theme #filters-project .filter-button {
    border: 1px solid #000;
    color: #000;
}

.light-theme #filters-project .filter-button:hover,
.light-theme #filters-project .filter-button.active {
    background: #000;
    color: #fff;
}

/* Dark theme styles for filter button */
.dark-theme #filters-project .filter-button {
    border: 1px solid #ffffff;
    color: #ffffff;
}

.dark-theme #filters-project .filter-button:hover,
.dark-theme #filters-project .filter-button.active {
    background: #ffffff;
    color: #000;
}


/* Styles for pager buttons */
.isotope-pager-project {
    display: flex;
    list-style-type: none;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.isotope-pager-project .pager {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    display: block;
    padding: 8px 16px;
    background-color: transparent;
    border: var(--deco-border);
    margin: 0 8px;
    transition: all 0.3s;
    color: var(--text-main);
}

.isotope-pager-project .pager:hover:not(:disabled) {
    background-color: var(--accent-color);
    color: var(--bg-color);
    cursor: pointer;
}

.isotope-pager-project .current-page {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    padding: 8px 16px;
    color: var(--accent-color);
}

.isotope-pager-project .pager:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}


/* Styles for pager buttons */
.isotope-pager-github {
    display: flex;
    list-style-type: none;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.isotope-pager-github .pager {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    display: block;
    padding: 8px 16px;
    background-color: transparent;
    border: var(--deco-border);
    margin: 0 8px;
    transition: all 0.3s;
    color: var(--text-main);
}

.isotope-pager-github .pager:hover:not(:disabled) {
    background-color: var(--accent-color);
    color: var(--bg-color);
    cursor: pointer;
}

.isotope-pager-github .current-page {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    padding: 8px 16px;
    color: var(--accent-color);
}

.isotope-pager-github .pager:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}


/* More/Less button for widgets */
.collapse.in { 
    display: inline !important; 
}


/* Styles for filter buttons */
#filters-resources .filter-button {
    background: transparent;
    border: 1px solid #000;
    color: #000;
    padding: 5px 15px;
    margin-right: 5px;
    margin-bottom: 5px;
    font-family: 'Poiret One', cursive;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: pointer;
    border-radius: 0;
    transition: all 0.3s;
}

#filters-resources .filter-button:hover,
#filters-resources .filter-button.active {
    background: #000;
    color: #fff;
}

/* Light theme styles for filter button */
.light-theme #filters-resources .filter-button {
    border: 1px solid #000;
    color: #000;
}

.light-theme #filters-resources .filter-button:hover,
.light-theme #filters-resources .filter-button.active {
    background: #000;
    color: #fff;
}

/* Dark theme styles for filter button */
.dark-theme #filters-resources .filter-button {
    border: 1px solid #ffffff;
    color: #ffffff;
}

.dark-theme #filters-resources .filter-button:hover,
.dark-theme #filters-resources .filter-button.active {
    background: #ffffff;
    color: #000;
}


/* Handle for gallery and pictures in gallery */
div.gallery {
    margin: 3px;
    border: 1px solid #ccc;
    border-radius: 8px;
    float: left;
    width: 212px;
}
div.gallery:nth-child(8n+1) {
    clear: both;
}
div.gallery img {
    width: 100%;
    height: auto;
    border-radius: 7px;
}
div.desc {
    padding: 8px;
    text-align: center;
}


/* Styles for update cards */
.news-card {
    background-color: none;
    width: 180px;
    height: 291px;
    border-radius: 7px;
    margin: 3px;
    border: 1px solid #ccc;
    float: left;
    display: flex;
    flex-direction: column;
}
.news-desc {
    flex-grow: 1;
    padding: 0.4rem 1rem 0rem 1rem;
    font-size: 13px;
}
.news-time {
    color: grey;
    padding: 0rem 1rem 0.6rem 1rem;
    font-size: 12px;
}
.owl-carousel .owl-nav .owl-prev, .owl-carousel .owl-nav .owl-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 50%;
    font-size: 60px;
    padding: 20px;
    width: 40px;
    height: 40px; 
    align-items: center;
    justify-content: center;
    opacity: 0.5; 
}
.owl-carousel .owl-nav .owl-prev {
    left: -30px;
}
.owl-carousel .owl-nav .owl-next {
    right: -33px;
}
.owl-carousel .owl-dots {
    display: none;
}
.owl-carousel {
    margin: 0;
    position: relative;
}


/* Styles for Github cards container */
#github-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    max-width: 1600px;
    margin: 15px;
}


/* Styles for GitHub cards */
.github-card {
    flex: 0 1 calc(50% - 20px);
    margin: 0px 15px 10px 0px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    width: 500px;
    padding: 16px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    transition: 0.5s;
}
.dark-theme .github-card {
    background-color: #292929;
    color: #ffffff;
    border-color: #343434;
}
@media (max-width: 768px) {
    .github-card {
        flex: 0 1 100%;
        width: auto;
    }
}


/* Styles for repository information */
.repo-header {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    transition: 0.5s;
}
.repo-header .bookmark-icon {
    margin-right: 8px;
    color: #586069;
    transition: 0.5s;
}
.repo-name {
    font-weight: 500;
    color: #0366d6;
    font-size: 16px;
    text-decoration: none;
    transition: 0.5s;
}
.repo-name:hover {
    text-decoration: underline;
    color: #0366d6;
}
.dark-theme .repo-name:hover {
    text-decoration: underline;
    color: #0366d6;
}
.repo-description {
    font-size: 13px;
    color: #586069;
    margin-bottom: 16px;
    line-height: 1.4;
    transition: 0.5s;
}
.stats-number {
    margin-left: 4px;
    transition: 0.5s;
}
.repo-stats {
    display: flex;
    align-items: center;
    font-size: 14px;
    transition: 0.5s;
}
.repo-stats > * {
    display: flex;
    align-items: center;
    margin-right: 16px;
}
.repo-stats i {
    margin-right: 8px;
}
.language-icon {
    color: #007bff;
    margin-right: 8px;
    transition: 0.5s;
}
.dark-theme .repo-description,
.dark-theme .stats-number,
.dark-theme .language {
    color: #ffffff;
}
.star-icon {
    color: #ffc107;
    transition: 0.5s;
}
.fork-icon {
    color: #333;
    transition: 0.5s;
}
.dark-theme .bookmark-icon,
.dark-theme .fork-icon {
    color: #bbbbbb;
}


/* =================================
   BACK-TO-TOP BUTTON - Art Deco
   ================================= */

#back-to-top-button {
    display: inline-block;
    background-color: transparent;
    width: 50px;
    height: 50px;
    text-align: center;
    border: 2px solid var(--accent-color);
    position: fixed;
    bottom: 30px;
    right: 30px;
    transition: all 0.3s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}
#back-to-top-button::after {
    content: "\f077";
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 1.5em;
    line-height: 46px;
    color: var(--accent-color);
}
#back-to-top-button:hover {
    cursor: pointer;
    background-color: var(--accent-color);
}
#back-to-top-button:hover::after {
    color: var(--bg-color);
}
#back-to-top-button:active {
    background-color: var(--accent-color);
}
#back-to-top-button.show {
    opacity: 1;
    visibility: visible;
}


/* Toggle theme button styles */
.toggle-theme-button {
    width: 55px;
    height: 55px;
    border-radius: 7px;
    cursor: pointer;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000; 
    transition: background-color 0.5s ease, color 0.5s ease;
}


/* Light theme styles for toggle theme button */
.light-theme .toggle-theme-button {
    background-color: #919191;
    color: #ffffff;
}


/* Dark theme styles for toggle theme button */
.dark-theme .toggle-theme-button {
    background-color: #ccc;
    color: #333333;
}


/* Styles for progress bar */
.progress-bar-container {
    width: 100%;
    height: 1px;
    background: #f1f1f1;
    position: fixed;
    top: 0;
    z-index: 1;
    transition: 0.5s;
}
.progress-bar {
    height: 2px;
    background: var(--accent-color);
    width: 0%;
}
.light-theme .progress-bar-container {
    background: #f1f1f1;
}
.dark-theme .progress-bar-container {
    background: #3a3a3a;
}


/* =================================
   SCROLLBAR - Minimalist
   ================================= */

::-webkit-scrollbar-track {
    background-color: #ffffff;
}
::-webkit-scrollbar-thumb {
    background-color: #1a1a1a;
}
::-webkit-scrollbar-thumb:hover {
    background-color: #000;
}
::-webkit-scrollbar {
    width: 8px;
}


/* Styles for middle-layer moving-particle canvas */
canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}


/* =================================
   FOOTER - Art Deco Double Border
   ================================= */

footer {
    margin-top: 4rem;
    border-top: var(--deco-border);
    padding-top: 2rem;
    padding-bottom: 2rem;
    font-size: 0.9rem;
}

footer .row {
    align-items: center;
}

footer img {
    height: 70px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    margin: 0 8px;
    vertical-align: middle;
    transition: filter 0.5s;
}

.dark-theme footer img {
    filter: invert(1) brightness(0.9);
}

footer .text-left {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

footer .text-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
}


/* =================================
   IMAGES - Full Color
   ================================= */


/* =================================
   UPDATES SECTION - Art Deco Cards
   ================================= */

.updates-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.update-card {
    border: var(--border-style);
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.dark-theme .update-card {
    border-color: #e8e8e8;
}

.update-date {
    font-family: 'Poiret One', cursive;
    line-height: 1;
    padding-right: 1rem;
    border-right: var(--deco-border);
    letter-spacing: 0.1em;
    min-width: 100px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.update-month {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-color);
}

.update-year {
    font-size: 1rem;
    margin-top: 0.25rem;
    color: var(--text-muted);
}

.update-content {
    flex: 1;
}


/* =================================
   THEME TOGGLE BUTTON
   ================================= */

.toggle-theme-button {
    font-family: 'Poiret One', cursive;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 1.5rem;
    border: var(--border-style);
    padding: 8px 14px;
    background: transparent;
    color: var(--accent-color);
    line-height: 1;
}

.toggle-theme-button:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}