:root {
    --primary-bg-color: #f2f2f2;
    --text-primary: #333;
    --heading-color: #333;
    --subsection-bg: #ffffff;
    --link-color: #2c937a;
    --container-bg: #f2f2f2;
    --navbar-bg: #eee;
    --navbar-link-color: #000;
    --link-hover-bg: #ddd;
    --footer-color: #333;
    --project-desc-color: #666;
    --section-bg: #f9f9f9;
    --toggle-bg: #333;
    --toggle-color: #ccc;
    --toggle-hover-bg: #858585;
    --profile-border-color: #333;
    --font-family: 'Outfit', 'Arial', sans-serif;
    --mini-heading-color: #c4c3c3;
    --highlight-color: #2c937a;
    --divider: #2C937A;
    --tag-box-color: #daf4ee;
    --tag-box-drop-shadow: #434343;
    --project-title-color: #6e6e6e;
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 40px;
}

body.dark-mode {
    --primary-bg-color: #202020;
    --text-primary: #ccc;
    --heading-color: #ccc;
    --link-color: #2c937a;
    --container-bg: #202020;
    --navbar-bg: #222;
    --navbar-link-color: #eee;
    --link-hover-bg: #2c937a;
    --footer-color: #bbb;
    --project-desc-color: #bbb;
    --section-bg: #1c1c1c;
    --subsection-bg: #292828;
    --toggle-bg: #ccc;
    --toggle-color: #333;
    --toggle-hover-bg: #858585;
    --highlight-color: #2c937a;
    --divider: #2C937A;
    --tag-box-color: #161616;
    --tag-box-drop-shadow: #2C937A;
    --project-title-color: #999;
    --profile-border-color: #bbb;
    --mini-heading-color: #666;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    font-size: 16px;
    background-color: var(--primary-bg-color);
    color: var(--text-primary);
    width: 100%;
}

h1, h2, h3 {
    color: var(--heading-color);
    margin-top: 0;
    margin-bottom: 0;
    letter-spacing: -0.02em;
}

h1 {
    font-weight: 700;
    font-size: 2rem;
    line-height: 1.2;
}

h2 {
    font-weight: 600;
}

h3 {
    font-weight: 400;
    line-height: 1.5;
    color: var(--project-desc-color);
}

a {
    padding-bottom: 2px;
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s, text-decoration 0.3s;
}

#shareButton {
    background: transparent;
    border: none;
    color: var(--navbar-link-color);
    margin-left: auto;
}

.share-btn {
    font-weight: normal;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md);
    background: var(--container-bg);
    border-radius: 8px;
    justify-content: space-between;
}

.navbar, .navbar1 {
    overflow: auto;
    background: var(--navbar-bg);
    padding-left: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: -50px;
    top: 0;
    z-index: 1000;
}

.navbar {
    position: sticky;
}

.navbar1 {
    position: fixed;
    margin-right: 0;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-bottom: 1px var(--mini-heading-color) solid;
    margin-top: 0;
}

.navbar .nav-links, .navbar1 .nav-links {
    text-align: center;
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.navbar .nav-links li, .navbar1 .nav-links li {
    margin: 0;
}

.navbar .nav-links a, .navbar1 .nav-links a {
    color: var(--navbar-link-color);
    font-weight: normal;
    padding-top: 4px;
    border-radius: 2px;
    transition: background 0.3s;
    font-size: small;
}

.cv-drive-icon {
    margin-left: 8px;
}

.nav-icon:hover {
    border-bottom: 3px solid var(--highlight-color);
}

.navbar .nav-links a:hover + .nav-icon,
.navbar1 .nav-links a:hover,
.here-link a:hover {
    border-bottom: 3px solid var(--highlight-color);
}

.header {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    padding: 0;
    height: auto;
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1;
}

.mini-heading {
    text-decoration: underline;
    text-decoration-color: var(--mini-heading-color);
}

.mode-toggle {
    background-color: var(--toggle-bg);
    color: var(--toggle-color);
    border: none;
    padding-left: var(--space-xs);
    padding-right: var(--space-xs);
    padding-top: var(--space-xs);
    padding-bottom: 4px;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.6s, transform 0.6s, opacity 1.2s ease-in-out;
    opacity: 1;
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    z-index: 10;
    margin-right: 24px;
    margin-top: -4px;
}

.mode-toggle img {
    width: 24px;
    height: 24px;
    transition: transform 0.6s ease;
}

.mode-toggle:hover {
    background-color: var(--toggle-hover-bg);
    transform: scale(1.05);
}

@media (min-width: 840px) {
    .header {
        height: 300px;
        padding: var(--space-md);
    }
    .share-btn {
        margin-top: 4px;
    }
}

.highlight-text {
    color: var(--highlight-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    width: 100%;
}

.profile-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.profile-pic {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 4px solid var(--highlight-color);
    box-shadow: 0 4px 20px rgba(44, 147, 122, 0.25);
}

.social-icons {
    display: flex;
    flex-direction: row;
    align-items: flex-end;
    gap: 12px;
    margin-left: auto;
    justify-content: flex-end;
}

.social-icons-beside {
    display: flex;
    flex-direction: row;
    align-items: flex-end;
    gap: 12px;
    margin-top: 8px;
}

.social-icon img {
    width: 24px;
    height: 24px;
    margin-bottom: -4px;
    transition: transform 0.3s ease;
}

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

body.dark-mode .social-icon img,
body.dark-mode .share-btn img,
body.dark-mode .project-link-icon,
body.dark-mode .nav-icon img {
    filter: invert(1);
}

.header-text {
    color: var(--text-primary);
    font-size: 1.5rem;
}

.header-title {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-top: var(--space-xs);
}

.time-period {
    text-align: right;
    float: right;
    padding-right: 0;
}

.skills, .intro, .project-box {
    background-color: var(--subsection-bg);
    padding: var(--space-md);
    border-radius: 8px;
    margin-bottom: var(--space-sm);
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.intro {
    padding-top: 10px;
}

.section-name, .section-name-hidden {
    border-bottom: 3px solid var(--divider);
    border-radius: 2px;
    padding-bottom: 8px;
    padding-right: 32px;
    letter-spacing: 0.01em;
    font-size: 1.25rem;
}

.section-name-hidden {
    visibility: hidden;
}

.about-me, .projects, .cv, .awards {
    background-color: var(--section-bg);
    padding: var(--space-md);
    border-radius: 10px;
    margin-bottom: var(--space-lg);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.tag-box {
    text-align: left;
    font-family: "Outfit", sans-serif;
    font-size: 16px;
    letter-spacing: -0.02em;
    font-weight: 400;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
}

.tag-box-main, .tag-box-main1 {
    background: var(--tag-box-color);
    border-radius: 12px;
    padding: 4px 8px 4px 8px;
    display: inline-flex;
    flex-direction: row;
    gap: 4px;
    box-shadow: 2px 2px 0px 0px var(--tag-box-drop-shadow);
    align-items: left;
    justify-content: left;
    flex-shrink: 0;
    position: relative;
    margin: 4px;
}

.about-me:hover, .projects:hover, .cv:hover, .certifications:hover, .skills:hover {
    transform: none;
}

.project-box-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.project-link-class {
    display: flex;
    float: right;
    position: relative;
    padding: 24px;
    z-index: 102;
}

.cv {
    position: relative;
    padding: 20px;
}

.timeline {
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
}

.timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--highlight-color);
    left: 20px;
    margin-left: -2px;
}

.timeline-item {
    position: relative;
    margin: 20px 0;
    padding-left: 40px;
}

.timeline-icon {
    position: absolute;
    left: 8px;
    top: 24px;
    width: 24px;
    height: 24px;
    text-align: center;
    background: var(--section-bg);
    border: 2px solid var(--highlight-color) hidden;
    border-radius: 50%;
    z-index: 100;
}

.cv-drive-icon {
    position: relative;
    left: 32px;
    text-align: center;
    background: var(--section-bg);
    border: 2px solid var(--highlight-color) hidden;
    border-radius: 50%;
    z-index: 100;
}

.timeline-content h3 {
    margin-top: 0;
    color: var(--highlight-color);
}

.project-link-icon2 {
    width: 16px;
    height: 16px;
    margin-left: -24px;
    margin-right: 8px;
    margin-bottom: -2px;
}

.project-description {
    padding: var(--space-sm) 0;
}

.project-title {
    display: flex;
    text-transform: uppercase;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: var(--project-title-color);
}

.project-link-icon {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
    margin-left: auto;
    margin-bottom: -5px;
    margin-right: 0;
}

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

.footer {
    text-align: center;
    padding: var(--space-sm);
    color: var(--footer-color);
}

.nav-icon, .nav-icon1 {
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: center;
    justify-content: center;
    width: 108px;
}

.navicon-name {
    font-size: 0.7rem;
    letter-spacing: 0.03em;
    font-weight: 500;
    white-space: nowrap;
}

.nav-icon1 img {
    width: 32px;
    height: 32px;
}

.nav-icon img {
    width: 24px;
    height: 24px;
}

.share-btn img:hover {
    transform: scale(1.2);
}

.share-btn {
    display: flex;
    align-items: center;
    float: right;
    margin-right: 72px;
    margin-left: -24px;
}

.share-btnmob a {
    margin-top: 0px;
    margin-bottom: 1px;
}

.share-btnmob img {
    margin-top: -1px;
    padding-bottom: 4px;
}

.share-btn img {
    float: right;
    width: 24px;
    height: 24px;
    margin-right: var(--space-md);
    transition: transform 0.3s ease;
}

.nav-icon1 {
    visibility: hidden;
}

#copyNotification {
    visibility: hidden;
    min-width: 160px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: fixed;
    z-index: 1001;
    bottom: 50px;
    right: 10px;
    font-size: 14px;
}

.nav-icon {
    border-bottom: 3px solid var(--link-color) hidden;
}

#copyNotification.show {
    visibility: visible;
    animation: fadein 0.5s, fadeout 0.5s 2.5s;
}

.home-button-main {
    font-size: small;
    margin-right: 40px;
    margin-top: 2px;
    color: var(--link-color);
    text-align: center;
}

@keyframes fadein {
    from { bottom: 30px; opacity: 0; }
    to { bottom: 50px; opacity: 1; }
}

.nav-item.active .nav-icon,
.nav-icon.active-icon {
    border-bottom: 3px solid var(--highlight-color);
}

@keyframes fadeout {
    from { bottom: 50px; opacity: 1; }
    to { bottom: 30px; opacity: 0; }
}

/* Responsive: desktop */
@media (min-width: 841px) {
    .header {
        height: 300px;
        padding: var(--space-xl);
    }
    .header-content {
        flex-direction: row;
        justify-content: flex-start;
    }
    .about-me, .projects {
        column-count: 2;
        justify-content: space-between;
    }
    .profile-container {
        margin-right: var(--space-lg);
    }
    .profile-pic {
        width: 220px;
        height: 220px;
    }
    .header-text {
        font-size: 2rem;
    }
    .header-title {
        font-size: 1.25rem;
    }
    .header-left {
        padding-left: 32px;
    }
    .share-btnmob {
        visibility: hidden;
    }
    #shareButtonmob:hover {
        visibility: hidden;
    }
    .hidepp {
        display: none;
    }
}

/* Responsive: mobile */
@media (max-width: 840px) {
    .home-button-main {
        margin-left: calc(100vw / 20);
        margin-right: calc(100vw / 20);
        font-size: x-small;
    }
    .section-name, .section-name-hidden {
        padding-bottom: 4px;
    }
    .nav-links {
        display: flex;
        align-items: center;
        padding: var(--space-xs);
    }
    .nav-icon1 img {
        width: 28px;
        height: 28px;
    }
    .nav-icon img {
        width: 24px;
        height: 24px;
        transition: transform 0.3s ease;
    }
    .navbar, .navbar1 {
        position: fixed;
        margin-left: calc(-100vw / 20);
        margin-right: -50px;
    }
    .share-btnmob {
        visibility: hidden;
    }
    .nav-links li {
        margin: 0;
        border-radius: 2px;
        background-color: var(--navbar-bg);
    }
    .social-icons-beside {
        display: flex;
        flex-direction: row;
        align-items: flex-end;
        gap: 12px;
        margin-top: 10px;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        margin-bottom: 100px;
    }
    .navbar {
        overflow: auto;
        background: var(--navbar-bg);
        padding-left: 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: fixed;
        margin-top: 0px;
        top: 0;
        z-index: 1000;
    }
    .navbar .nav-links a, .navbar1 .nav-links a {
        color: var(--navbar-link-color);
        font-weight: normal;
        padding-top: 4px;
        border-radius: 2px;
        transition: background 0.6s ease;
        font-size: x-small;
    }
    .nav-links a {
        display: block;
        padding: 0px;
        color: var(--navbar-link-color);
        text-align: center;
        border-radius: 2px;
        transition: background 0.6s ease;
    }
    .profile-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        margin-left: auto;
        margin-right: auto;
        margin-top: 40px;
    }
    .share-btn img {
        padding-right: 0px;
        margin-left: -40px;
    }
    .profile-pic {
        margin-bottom: var(--space-sm);
    }
    .header-left {
        padding: 0%;
    }
    .mode-toggle {
        margin-right: 32px;
        margin-top: -10px;
        right: 10px;
        float: right;
    }
    ul {
        margin-left: -24px;
    }
    .share-btn {
        float: right;
    }
}

/* Dividers */
.project-divider {
    border: 0;
    height: 1px;
    background: var(--divider);
    opacity: 0.75;
}

.subproject-divider {
    border: 0;
    height: 1px;
    background: var(--divider);
    opacity: 0.25;
}

.section-divider {
    border: 0;
    height: 1px;
    background: var(--divider);
    opacity: 1;
    visibility: hidden;
}

ul {
    list-style-type: none;
}

html {
    scroll-behavior: smooth;
}

@media screen and (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}