:root[data-theme="dark"] {
    --color-background: #141c27;
    --color-background-secondary: #171e2b;
    --color-background-tertiary: #111721;

    --color-foreground: #e4ecff;
    --color-foreground-secondary: #b0b8c7;

    --color-border: #212730;

    --color-primary: #5EC891;
    --color-secondary: #25403F;

    --card-shadow: rgba(0, 0, 0, 0.25);
}

:root[data-theme="light"] {
    --color-background: #FFFFFF;
    --color-background-secondary: #F8F9FA;
    --color-background-tertiary: #F0F2F5;

    --color-foreground: #1b2330;
    --color-foreground-secondary: #4e607e;

    --color-border: #d3d9e6;

    --color-primary: #5EC891;
    --color-secondary: #D9EFE5;

    --card-shadow: rgba(0, 0, 0, 0.1);
}

body {
    min-height: 100dvh;
}

main {
    margin-left: 80px;
    padding: 40px 80px;
    overflow-x: hidden;
}

@media screen and (max-width: 800px) {
    main {
        padding: 40px;
    }
}

@media screen and (max-width: 600px) {
    main {
        padding: 20px;
        margin-left: 0;
        margin-bottom: 70px;
    }
}

main header {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
}

main header h1 {
    font-size: 2.5rem;
    color: var(--color-foreground);
}

main header p {
    font-size: 1.1rem;
    color: var(--color-foreground-secondary);
}

/* Home */
.home {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 800px;
}

.home h1 {
    font-size: 4rem;
    color: var(--color-foreground);
}

.home .subtitle {
    font-size: 1.5rem;
    color: var(--color-foreground-secondary);
}

.home .text {
    font-size: 1.1rem;
    color: var(--color-foreground-secondary);
    margin-top: 20px;
    margin-bottom: 40px;
}

.home .btns {
    margin-bottom: 40px;
}

.home .stats {
    display: flex;
    gap: 15px;
}

.home .stats div {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 300px;
    width: 100%;
    text-align: center;
}

@media screen and (max-width: 600px) {
    .home {
        min-height: calc(100dvh - 70px);
    }
}

@media screen and (max-width: 400px) {
    .home .stats {
        flex-direction: column;
        align-items: center;
    }

    .home {
        text-align: center;
    }

    .home .btns {
        justify-content: center;
    }
}

.home .stats div span {
    font-size: 2rem;
    color: var(--color-primary);
    font-weight: 600;
}

.home .stats div p {
    font-size: 1rem;
    color: var(--color-foreground-secondary);
}

/* Projects */
.projects {
    overflow-x: unset;
}

.projects-container {
    display: flex;
    gap: 30px;
    width: 100%;
    max-width: 1200px;
}

@media screen and (max-width: 900px) {
    .projects-container {
        flex-direction: column;
    }

    .projects-container .filter {
        width: 100% !important;
        position: static !important;
        top: unset !important;
    }
}

.projects-container .filter {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    width: 300px;
    height: fit-content;
}

.projects-container .filter .title {
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 10px;
}

.projects-container .filter .title i {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.projects-container .filter .title h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-foreground);
}

.projects-container .filter .filter-category {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
}

.projects-container .filter .filter-category h3 {
    color: var(--color-foreground-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.projects-container .filter .filter-category .filter-items {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.projects-container .filter .filter-category .filter-items button {
    padding: 2px 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--color-foreground-secondary);
    background-color: var(--color-background-secondary);
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    font-weight: 500;
}

.projects-container .filter .filter-category .filter-items button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-secondary);
}

.projects-container .filter .filter-category .filter-items button.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-background-secondary);
}

.projects-container .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    width: 100%;
    flex: 1;
}

.projects-grid .project {
    display: flex;
    flex-direction: column;
    gap: 15px;
    min-height: 250px;
    height: fit-content;
}

.projects-grid .project .header {
    display: flex;
    gap: 15px;
    justify-content: space-between;
}

.projects-grid .project .header .title {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.projects-grid .project .header .btns {
    gap: 10px;
}

.projects-grid .project .header h2 {
    font-size: 1.2rem;
    color: var(--color-foreground);
    font-weight: 600;
}

.projects-grid .project p {
    font-size: 0.9rem;
    color: var(--color-foreground-secondary);
}

.projects-grid .project .tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: auto;
}

.projects-grid .project .tags span {
    padding: 2px 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--color-foreground-secondary);
    background-color: var(--color-background-secondary);
    font-weight: 500;
}

/* Blog */
.blog-entries {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 1200px;
    width: 100%;
}

.blog .blog-entry {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.blog .blog-entry h2 {
    font-size: 1.2rem;
    color: var(--color-foreground);
    font-weight: 600;
}

.blog .blog-entry p {
    font-size: 0.875rem;
    color: var(--color-foreground-secondary);
    line-height: 1.5;
}

.blog .blog-entry .stats {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: var(--color-foreground-secondary);
}

.blog .blog-entry .stats p {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Blog entry */
.blog-entry-page {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-x: unset;
}

.blog-entry-page h1 {
    font-size: 2.5rem;
    color: var(--color-foreground);
    line-height: 1.2;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

.blog-entry-page .stats {
    display: flex;
    gap: 20px;
    font-size: 1rem;
    color: var(--color-foreground-secondary);
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

.blog-entry-page .stats p {
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-entry-page .preview-text {
    font-size: 1.1rem;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

.blog-entry-page .content {
    display: flex;
    flex-direction: row-reverse;
    gap: 15px;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
}

@media screen and (max-width: 1050px) {
    .blog-entry-page .content {
        flex-direction: column;
    }

    .blog-entry-page .content .toc {
        position: static !important;
        width: 100% !important;
        top: unset !important;
    }
}

.blog-entry-page .content .toc {
    position: sticky;
    width: 250px;
    top: 100px;
    height: fit-content;
    display: flex;
    flex-direction: column;
}

.blog-entry-page .content .toc .title {
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 10px;
}

.blog-entry-page .content .toc .title i {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.blog-entry-page .content .toc .title h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-foreground);
}

.blog-entry-page .content .toc ul {
    display: flex;
    flex-direction: column;
    margin-top: 20px;
    gap: 10px;
}

.blog-entry-page .content .toc ul li a {
    font-size: 0.9rem;
    color: var(--color-foreground-secondary);
    transition: color 0.2s;
}

.blog-entry-page .content .toc ul li a:hover {
    color: var(--color-primary);
}

.blog-entry-page .content .toc ul li.h3 a {
    margin-left: 15px;
}

.blog-entry-page .content article {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.blog-entry-page .content article h2 {
    font-size: 1.8rem;
    color: var(--color-foreground);
}

.blog-entry-page .content article h2:not(:first-child) {
    margin-top: 20px;
}

.blog-entry-page .content article h3 {
    font-size: 1.5rem;
    color: var(--color-foreground);
}

.blog-entry-page .content article p {
    font-size: 1rem;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
}

.blog-entry-page .content article ul li {
    list-style-type: disc;
    margin-left: 20px;
    font-size: 1rem;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
}

.blog-entry-page .content article ol li {
    list-style-type: decimal;
    margin-left: 20px;
    font-size: 1rem;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
}

.blog-entry-page .content article ul li::marker,
.blog-entry-page .content article ol li::marker {
    color: var(--color-primary);
}

/* About */
.about .tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    width: 100%;
}

.about .tech-category {
    display: flex;
    flex-direction: column;
}

.about .tech-category h2 {
    font-size: 1rem;
    color: var(--color-foreground);
    font-weight: 600;
}

.about .tech-category .items {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.about .tech-category .items span,
.about .tech-category .items a {
    padding: 2px 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--color-foreground-secondary);
    background-color: var(--color-background-secondary);
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    font-weight: 500;
}

.about .tech-category .items a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-secondary);
}

/* Error */
.error {
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media screen and (max-width: 600px) {
    .home {
        height: calc(100dvh - 70px);
    }
}

.error .card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.error .card h1 {
    font-size: 3rem;
    color: var(--color-foreground);
    text-align: center;
}

.error .card p {
    font-size: 1.2rem;
    color: var(--color-foreground-secondary);
    text-align: center;
}