/* ============================================
   Lunatech Blog - CSS
   Compiled from original SCSS source
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

/* --- Variables as CSS Custom Properties --- */
:root {
    --light-blue: #78B4D7;
    --blue: #0E2B71;
    --medium-blue: #0A1E50;
    --dark-blue: #061332;
    --bg-medium-blue: #081840;
    --bg-dark-blue: #091B49;
    --pink: #DB2777;
    --dark-pink: #bb2267;
    --red: #E62832;
    --medium-red: #AE1920;
    --dark-red: #9B1919;
    --white: #FFFFFF;
    --light-gray: #c5c5c5;
    --dark-gray: #4A4A4A;
    --border: #E7E7E7;
    --font-size-small: 0.75rem;
    --font-size-base: 1rem;
    --font-size-medium: 1.0625rem;
    --font-size-large: 1.25rem;
    --font-size-xlarge: 1.375rem;
    --font-size-xxlarge: 1.5rem;
    --font-size-heading: 2.5rem;
    --font-size-hero: 4rem;
    --border-radius: 8px;
    --space-xs: 8px;
    --space-s: 16px;
    --space-md: 32px;
    --space-lg: 64px;
    --space-xl: 128px;
}

/* --- Base / General --- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: #292929;
    background: #f5f5f7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* --- Header --- */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 128px;
    height: 80px;
    background: var(--medium-blue);
    border-bottom: 1px solid #2b2b2b;
    position: fixed;
    min-width: 100%;
    z-index: 100;
    transition: all 0.3s ease;
}

.header.scroll {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header__logo .logo-full {
    height: 28px;
}

.header__logo .logo-small {
    height: 32px;
    display: none;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header__toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
}

/* Nav links */
.nav__link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: white;
    opacity: 0.8;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav__link:hover {
    opacity: 1;
}

.nav__link--highlight {
    background: var(--pink);
    opacity: 1;
}

.nav__link--highlight:hover {
    background: var(--dark-pink);
}

/* Categories dropdown */
.nav__categories {
    position: relative;
}

.nav__btn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: white;
    opacity: 0.8;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 4px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s ease;
}

.nav__btn:hover {
    opacity: 1;
}

.categories-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    padding: 16px;
    min-width: 280px;
    max-height: 400px;
    overflow-y: auto;
    flex-wrap: wrap;
    gap: 8px;
    z-index: 200;
}

.categories-dropdown.open {
    display: flex;
}

/* --- Hero / Cover --- */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 160px 128px 80px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(-90deg, var(--dark-blue), var(--medium-blue), var(--medium-blue), var(--dark-blue));
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    text-align: center;
}

.hero__title {
    color: white;
    font-size: var(--font-size-hero);
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 16px;
}

.hero__subtitle {
    font-size: var(--font-size-large);
    color: var(--light-gray);
    font-weight: 400;
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Main --- */
.main {
    min-height: 60vh;
}

/* --- Posts Grid --- */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding: 48px 128px;
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Card --- */
.card {
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: var(--border-radius);
    color: #292929;
    background: white;
    overflow: hidden;
    box-shadow: 0 10px 21px rgba(173, 178, 197, 0.17);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.card:hover .card__cover img {
    transform: scale(1.10);
}

.card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.card__cover {
    height: 192px;
    width: 100%;
    overflow: hidden;
    background: white;
    border-bottom: 1px solid var(--border);
}

.card__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s ease;
}

.card__cover--placeholder {
    background: linear-gradient(135deg, var(--medium-blue), var(--dark-blue));
    display: flex;
    align-items: center;
    justify-content: center;
}

.card__cover-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: rgba(255, 255, 255, 0.3);
    font-size: 48px;
}

.card__cover--error img {
    display: none;
}

.card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card__author {
    display: flex;
    align-items: center;
    font-size: 14px;
    margin-bottom: 12px;
}

.card__author-avatar {
    height: 32px;
    width: 32px;
    border-radius: 50%;
    margin-right: 8px;
    object-fit: cover;
}

.card__author-name {
    color: #292929;
    opacity: 0.5;
}

.card__date {
    color: #292929;
    opacity: 0.5;
    font-size: 13px;
}

.card__author-info {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.card__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 28px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    flex: 1;
}

.card__title a {
    color: black;
    text-decoration: none;
}

.card__title a:hover {
    color: var(--pink);
}

.card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    overflow: hidden;
    max-height: 28px;
}

/* --- Tag --- */
.tag {
    display: inline-flex;
    align-items: center;
    border-radius: 4px;
    font-size: 12px;
    padding: 0 8px;
    height: 22px;
    color: #858585;
    text-transform: capitalize;
    white-space: nowrap;
    background: #f6f6f6;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tag:hover {
    background: #eaeaea;
    color: #555;
}

/* --- Tag Page --- */
.tag-page {
    padding: 120px 128px 48px;
    max-width: 1400px;
    margin: 0 auto;
}

.tag-page__title {
    font-size: var(--font-size-heading);
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark-blue);
}

.tag-page__title i {
    margin-right: 12px;
    color: var(--pink);
}

.tag-page__count {
    color: var(--dark-gray);
    margin-bottom: 32px;
    font-size: var(--font-size-large);
}

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding: 32px 128px 64px;
}

.pagination__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    font-weight: 500;
    padding: 0 32px;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: 0.3s;
    color: var(--white);
    background: var(--pink);
    font-size: 14px;
}

.pagination__btn:hover {
    background: var(--dark-pink);
    color: var(--white);
}

/* --- Post (single) --- */
.post {
    padding: 120px 0 64px;
}

.post__header {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 32px;
}

.post__title {
    font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    margin-bottom: 24px;
    color: #111;
}

.post__meta {
    margin-bottom: 16px;
}

.post__author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.post__author-avatar {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.post__author-info {
    display: flex;
    flex-direction: column;
}

.post__author-name {
    font-weight: 500;
    color: #292929;
}

.post__date {
    font-size: 14px;
    color: #292929;
    opacity: 0.5;
}

.post__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.post__cover {
    height: 500px;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 32px;
    overflow: hidden;
    background: white;
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.post__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --- Article Content --- */
.post__content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 32px;
}

.post__content h2 {
    font-size: 28px;
    margin: 32px 0 8px 0;
}

.post__content h3 {
    font-size: 24px;
    margin: 32px 0 8px 0;
}

.post__content h4 {
    font-size: 20px;
    margin: 32px 0 8px 0;
}

.post__content > div {
    overflow-x: auto;
}

.post__content p {
    font-size: 20px;
    line-height: 32px;
    word-break: break-word;
    margin: 16px 0;
}

.post__content a {
    color: var(--pink);
}

.post__content a:hover {
    color: var(--dark-pink);
}

.post__content ol,
.post__content ul {
    margin: 32px 0;
    padding-left: 24px;
    list-style: revert;
}

.post__content li {
    font-size: 20px;
    line-height: 32px;
    margin-bottom: 8px;
}

.post__content strong {
    font-weight: 600;
}

.post__content img {
    width: 100%;
}

.post__content blockquote {
    line-height: 28px;
    border-left: 4px solid var(--pink);
    padding-left: 20px;
    margin: 32px 0;
    font-style: italic;
    color: #555;
}

/* AsciiDoc specific */
.post__content .imageblock {
    margin: 32px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.post__content .imageblock .title {
    font-size: 14px;
    color: #757575;
    margin-top: 16px;
}

.post__content .listingblock {
    margin: 32px 0;
}

.post__content .quoteblock {
    margin: 32px 0;
    background: #f5f5f5;
    padding: 32px;
    border-radius: var(--border-radius);
}

.post__content .quoteblock .attribution {
    margin-top: 16px;
    font-size: 14px;
}

.post__content .paragraph {
    margin: 24px 0;
}

.post__content pre {
    background: #F8F9FC;
    padding: 8px;
    border-radius: 4px;
    overflow-x: auto;
}

.post__content table {
    margin: 32px 0;
    width: 100%;
    border-collapse: collapse;
}

.post__content table caption {
    text-align: left;
    margin-bottom: 16px;
    font-weight: 700;
}

.post__content table p {
    font-size: 14px;
    line-height: 24px;
    white-space: normal;
}

.post__content table,
.post__content th,
.post__content td {
    border: 1px solid black;
}

.post__content th,
.post__content td {
    padding: 8px;
}

.post__content .hdlist1 {
    display: inline-flex;
    width: initial;
    border-radius: 4px;
    margin-top: 32px;
    margin-bottom: 8px;
    font-weight: 700;
}

.post__content p code,
.post__content li code {
    background: #eff3f8;
    padding: 0 8px;
    display: inline;
    border-radius: 4px;
    font-size: 0.9em;
}

/* AsciiDoc TOC */
.post__content #toc {
    background: #f8f9fc;
    padding: 24px;
    border-radius: var(--border-radius);
    margin: 32px 0;
}

.post__content #toc .title {
    font-weight: 700;
    margin-bottom: 12px;
}

.post__content #toc ul {
    margin: 0;
    padding-left: 20px;
    list-style: none;
}

.post__content #toc li {
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 4px;
}

.post__content #toc a {
    color: var(--pink);
}

/* AsciiDoc admonition blocks */
.post__content .admonitionblock {
    margin: 24px 0;
    padding: 16px 20px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--light-blue);
    background: #f0f7fc;
}

.post__content .admonitionblock.warning {
    border-left-color: #f59e0b;
    background: #fffbeb;
}

.post__content .admonitionblock.important {
    border-left-color: var(--red);
    background: #fef2f2;
}

.post__content .admonitionblock td.icon {
    font-weight: 700;
    padding-right: 16px;
    vertical-align: top;
}

.post__content .admonitionblock td.content {
    font-size: 18px;
    line-height: 28px;
}

/* --- Code Highlighting (One Dark theme) --- */
.hljs {
    display: block;
    overflow-x: auto;
    padding: 1em;
    color: #abb2bf;
    background: #282c34;
    border-radius: 10px;
}

.hljs-comment, .hljs-quote {
    color: #5c6370;
    font-style: italic;
}

.hljs-doctag, .hljs-keyword, .hljs-formula {
    color: #c678dd;
}

.hljs-section, .hljs-name, .hljs-selector-tag, .hljs-deletion, .hljs-subst {
    color: #e06c75;
}

.hljs-literal {
    color: #56b6c2;
}

.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute, .hljs-meta-string {
    color: #98c379;
}

.hljs-built_in, .hljs-class .hljs-title {
    color: #e6c07b;
}

.hljs-attr, .hljs-variable, .hljs-template-variable, .hljs-type,
.hljs-selector-class, .hljs-selector-attr, .hljs-selector-pseudo, .hljs-number {
    color: #d19a66;
}

.hljs-symbol, .hljs-bullet, .hljs-link, .hljs-meta, .hljs-selector-id, .hljs-title {
    color: #61aeee;
}

.hljs-emphasis {
    font-style: italic;
}

.hljs-strong {
    font-weight: bold;
}

.hljs-link {
    text-decoration: underline;
}

/* --- Footer --- */
.footer {
    background: var(--dark-blue);
    color: white;
    padding: 54px 128px;
}

.footer__inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.footer__brand {
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 32px;
}

.footer__logo {
    height: 28px;
}

.footer__social {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer__social a {
    color: white;
    opacity: 0.8;
    font-size: 20px;
    transition: opacity 0.2s ease;
}

.footer__social a:hover {
    opacity: 1;
}

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

.footer__copy p {
    opacity: 0.6;
    font-size: 14px;
}

/* --- 404 Error Page --- */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: 120px 32px 64px;
    text-align: center;
}

.error-page h1 {
    font-size: 120px;
    font-weight: 700;
    color: var(--medium-blue);
    line-height: 1;
    margin-bottom: 16px;
}

.error-page p {
    font-size: 20px;
    color: var(--dark-gray);
    margin-bottom: 32px;
}

.error-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    font-weight: 500;
    padding: 0 32px;
    border-radius: 4px;
    color: white;
    background: var(--pink);
    text-decoration: none;
    transition: 0.3s;
}

.error-page .btn:hover {
    background: var(--dark-pink);
}

/* --- Scroll to top --- */
.scroll-up {
    position: fixed;
    bottom: 32px;
    right: 32px;
    display: none;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 4px;
    border: 1px solid var(--border);
    padding: 7px;
    font-size: 32px;
    cursor: pointer;
}

/* --- Responsive --- */

/* Desktop / Large */
@media (max-width: 1200px) {
    .header {
        padding: 0 32px;
    }

    .hero {
        padding: 160px 64px 80px;
    }

    .posts-grid {
        padding: 48px 32px;
    }

    .tag-page {
        padding: 120px 32px 48px;
    }

    .pagination {
        padding: 32px;
    }

    .footer {
        padding: 32px;
    }
}

/* Tablet Landscape */
@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .post__cover {
        height: 450px;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    .header__nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        z-index: 200;
    }

    .header__nav.open {
        display: flex;
    }

    .header__toggle {
        display: flex;
    }

    .nav__link,
    .nav__btn {
        font-size: 18px;
        padding: 12px 24px;
    }

    .categories-dropdown {
        position: static;
        background: rgba(255, 255, 255, 0.1);
        box-shadow: none;
    }

    .categories-dropdown .tag {
        color: white;
        background: rgba(255, 255, 255, 0.15);
    }

    .hero__title {
        font-size: 48px;
    }

    .posts-grid {
        grid-template-columns: 1fr;
        padding: 32px 24px;
    }

    .post__cover {
        height: 320px;
    }

    .post__title {
        font-size: 32px;
        line-height: 40px;
    }
}

/* Phone */
@media (max-width: 576px) {
    .header {
        padding: 0 24px;
        height: 64px;
        position: sticky;
        top: 0;
    }

    .header__logo .logo-full {
        display: none;
    }

    .header__logo .logo-small {
        display: block;
    }

    .hero {
        padding: 100px 24px 48px;
    }

    .hero__title {
        font-size: 36px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .posts-grid {
        gap: 24px;
        padding: 24px 16px;
    }

    .pagination {
        padding: 24px 16px 48px;
        flex-direction: column;
        align-items: center;
    }

    .tag-page {
        padding: 88px 16px 32px;
    }

    .post {
        padding: 80px 0 32px;
    }

    .post__header {
        padding: 0 16px;
    }

    .post__title {
        font-size: 28px;
        line-height: 36px;
    }

    .post__cover {
        height: 200px;
        border-radius: 0;
    }

    .post__content {
        padding: 0 16px;
    }

    .post__content p {
        font-size: 18px;
        line-height: 28px;
    }

    .post__content h2 {
        font-size: 24px;
    }

    .post__content h3 {
        font-size: 20px;
    }

    .post__content h4 {
        font-size: 18px;
    }

    .footer {
        padding: 32px 16px;
    }

    .footer__copy {
        flex-direction: column;
        gap: 8px;
    }

    .scroll-up {
        display: none !important;
    }
}