:root {
    --bg: #090b0f;
    --bg-2: #10141c;
    --panel: #151b25;
    --panel-2: #1c2532;
    --line: #2d3848;
    --line-soft: rgba(255, 255, 255, 0.08);
    --text: #f1f4f8;
    --muted: #a8b4c2;
    --dim: #748193;
    --cyan: #70d6e8;
    --blue: #5d64b7;
    --purple: #a65bb7;
    --red: #e75555;
    --green: #68c487;
    --cream: #f6d58a;
    --max-width: 1120px;
    --header-height: 76px;
    --font-heading: "Orbitron", "Trebuchet MS", sans-serif;
    --font-mono: "Roboto Mono", "Cascadia Mono", Consolas, monospace;
    --font-body: "Trebuchet MS", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px) 0 0 / 32px 32px,
        linear-gradient(180deg, #111723 0%, var(--bg) 520px);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(rgba(255, 255, 255, 0.025) 50%, transparent 50%) 0 0 / 100% 4px;
    mix-blend-mode: screen;
    opacity: 0.28;
}

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

a:hover {
    color: var(--cream);
}

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

.site-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

.container {
    width: min(var(--max-width), calc(100% - 40px));
    margin: 0 auto;
}

.wide-container {
    width: min(1360px, calc(100% - 40px));
    margin: 0 auto;
    padding: 48px 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: var(--header-height);
    background: rgba(9, 11, 15, 0.92);
    border-bottom: 1px solid var(--line-soft);
    backdrop-filter: blur(12px);
}

.header-container {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo img {
    display: block;
    height: 46px;
    width: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
}

.nav-link:hover,
.nav-link.active {
    border-color: var(--line);
    color: var(--text);
    background: rgba(112, 214, 232, 0.08);
}

.mobile-toggle {
    display: none;
    color: var(--text);
    background: transparent;
    border: 0;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    color: var(--text);
    font-family: var(--font-heading);
    line-height: 1.12;
}

p {
    margin: 0;
}

.home-hero {
    padding: 92px 0 76px;
}

.home-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: center;
}

.hero-title {
    max-width: 760px;
    margin-bottom: 18px;
    font-size: clamp(2.5rem, 8vw, 5.8rem);
    letter-spacing: 0;
}

.hero-subtitle {
    max-width: 680px;
    color: var(--cyan);
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.18rem);
}

.hero-copy {
    max-width: 760px;
    margin-top: 24px;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 4px;
    border: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text);
    transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue), var(--purple));
    border-color: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.btn-primary:hover {
    color: #fff;
    border-color: var(--cyan);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.035);
    color: var(--text);
}

.btn-secondary:hover {
    color: var(--cream);
    border-color: var(--cream);
}

.btn-wide {
    width: 100%;
}

.release-panel,
.download-card {
    position: relative;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(28, 37, 50, 0.94), rgba(14, 18, 25, 0.94));
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.release-panel {
    padding: 24px;
}

.release-panel::before {
    content: "";
    position: absolute;
    inset: 10px;
    border: 1px dashed rgba(112, 214, 232, 0.22);
    border-radius: 5px;
    pointer-events: none;
}

.panel-label,
.eyebrow {
    color: var(--cream);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

.release-version {
    margin: 18px 0;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 4.2rem;
    line-height: 1;
}

.release-facts {
    display: grid;
    gap: 14px;
    margin: 0 0 24px;
}

.release-facts div {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 12px;
}

.release-facts dt {
    color: var(--dim);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
}

.release-facts dd {
    margin: 0;
    color: var(--text);
}

.feature-summary {
    padding: 72px 0;
    background: rgba(13, 17, 24, 0.72);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
}

.section-heading {
    max-width: 700px;
    margin-bottom: 30px;
}

.section-heading h2,
.download-band h2 {
    margin-top: 8px;
    font-size: clamp(1.7rem, 4vw, 3rem);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.feature-card {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
    min-height: 170px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(21, 27, 37, 0.84);
}

.feature-card img {
    image-rendering: pixelated;
}

.feature-card h3 {
    margin-bottom: 8px;
    font-size: 1.02rem;
}

.feature-card p {
    color: var(--muted);
    font-size: 0.95rem;
}

.download-band {
    padding: 64px 0;
}

.download-band-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
    align-items: center;
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(112, 214, 232, 0.08), rgba(231, 85, 85, 0.08));
}

.download-band p:not(.eyebrow) {
    max-width: 680px;
    margin-top: 12px;
    color: var(--muted);
}

.download-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    min-width: 210px;
}

.text-link {
    color: var(--cyan);
    font-family: var(--font-mono);
    font-size: 0.84rem;
    font-weight: 700;
    text-transform: uppercase;
}

.download-container {
    padding: 64px 0 76px;
}

.download-header {
    max-width: 760px;
    margin-bottom: 28px;
}

.page-title {
    margin-bottom: 14px;
    color: var(--text);
    font-size: clamp(2rem, 6vw, 4rem);
    text-align: left;
}

.download-subtitle {
    color: var(--muted);
    font-family: var(--font-mono);
}

.download-card {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
    max-width: 760px;
    margin-bottom: 36px;
    padding: 24px;
}

.download-card h2 {
    margin-bottom: 8px;
}

.download-card p {
    color: var(--muted);
    margin-bottom: 18px;
}

.release-notes-panel {
    max-width: 760px;
    margin: 0 0 36px;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(21, 27, 37, 0.72);
}

.release-notes-heading {
    margin-bottom: 16px;
}

.release-notes-heading h2 {
    margin-top: 8px;
    font-size: clamp(1.35rem, 3vw, 2rem);
}

.release-notes-list {
    display: grid;
    gap: 10px;
    margin: 0 0 18px;
    padding: 0;
    list-style: none;
}

.release-notes-list li {
    position: relative;
    padding-left: 20px;
    color: var(--muted);
}

.release-notes-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.78em;
    width: 8px;
    height: 2px;
    background: var(--cyan);
}

.release-empty {
    color: var(--dim);
}

.changelog-container {
    padding: 64px 0 76px;
}

.changelog-list {
    display: grid;
    gap: 18px;
    max-width: 900px;
}

.release-note-card {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(28, 37, 50, 0.88), rgba(14, 18, 25, 0.88));
}

.release-note-card.is-loading {
    background: rgba(21, 27, 37, 0.72);
}

.release-note-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
}

.release-note-header h2 {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
}

.release-note-meta {
    color: var(--dim);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    white-space: nowrap;
}

.dl-icon img {
    image-rendering: pixelated;
}

.file-info {
    display: inline-block;
    margin-left: 12px;
    color: var(--dim);
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.content-markdown {
    max-width: 820px;
    color: var(--muted);
}

.content-markdown h1,
.content-markdown h2,
.content-markdown h3 {
    margin: 28px 0 10px;
    color: var(--text);
}

.content-markdown p,
.content-markdown ul,
.content-markdown ol {
    margin: 0 0 16px;
}

.content-markdown ul,
.content-markdown ol {
    padding-left: 22px;
}

.content-markdown code,
.content-markdown pre {
    font-family: var(--font-mono);
}

.content-markdown code {
    padding: 2px 5px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--cream);
}

.content-markdown pre {
    overflow: auto;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #05070a;
}

.site-footer {
    margin-top: auto;
    padding: 38px 0 18px;
    border-top: 1px solid var(--line-soft);
    background: rgba(4, 6, 9, 0.9);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr;
    gap: 28px;
}

.footer-logo {
    margin-bottom: 8px;
    color: var(--cyan);
}

.footer-col p {
    color: var(--muted);
}

.footer-col h4 {
    margin-bottom: 10px;
}

.footer-links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-links li + li {
    margin-top: 6px;
}

.footer-bottom {
    width: min(var(--max-width), calc(100% - 40px));
    margin: 28px auto 0;
    padding-top: 16px;
    border-top: 1px solid var(--line-soft);
    color: var(--dim);
    font-size: 0.84rem;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.fade-in-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.manual-container {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 32px;
    padding: 42px 0 70px;
}

.manual-sidebar,
.manual-content-area,
.blog-card,
.community-card,
.feature-row {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(21, 27, 37, 0.76);
}

.manual-sidebar {
    padding: 18px;
}

.sidebar-sticky {
    position: sticky;
    top: calc(var(--header-height) + 18px);
}

.manual-tree,
.blog-grid,
.community-grid {
    list-style: none;
}

.manual-tree {
    margin: 0;
    padding: 0;
}

.manual-tree li + li {
    margin-top: 6px;
}

.manual-tree a {
    color: var(--muted);
}

.manual-content-area,
.blog-index,
.community-container {
    padding: 32px;
}

.blog-grid,
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin: 0;
    padding: 0;
}

.blog-card,
.community-card {
    padding: 20px;
}

.feature-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: center;
    margin: 22px 0;
    padding: 22px;
}

@media (max-width: 860px) {
    .desktop-nav {
        display: none;
    }

    .mobile-toggle {
        display: inline-flex;
    }

    .home-hero {
        padding: 58px 0 48px;
    }

    .home-hero-grid,
    .features-grid,
    .download-band-grid,
    .footer-container,
    .manual-container,
    .feature-row {
        grid-template-columns: 1fr;
    }

    .release-panel {
        max-width: 420px;
    }

    .download-actions {
        min-width: 0;
    }

    .release-note-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .release-note-meta {
        white-space: normal;
    }
}

@media (max-width: 560px) {
    .container,
    .wide-container,
    .footer-bottom {
        width: min(100% - 28px, var(--max-width));
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .feature-card,
    .download-card {
        grid-template-columns: 1fr;
    }

    .release-version {
        font-size: 3.2rem;
    }

    .file-info {
        display: block;
        margin: 10px 0 0;
    }
}