:root {
    --bg:           #14141c;
    --bg-raised:    #1b1b25;
    --bg-card:      #20202c;
    --bg-code:      #111119;
    --border:       #2e2e40;
    --border-light: #3c3c52;

    --text:         #eeeef6;
    --text-muted:   #9898b8;
    --text-dim:     #56567a;

    --accent:       #4c6ef5;
    --accent-light: #91a7ff;

    --code-kw:      #91a7ff;
    --code-fn:      #69db7c;
    --code-str:     #ffe066;
    --code-cmt:     #60607e;
    --code-num:     #ff8787;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body:    'DM Sans', system-ui, sans-serif;
    --font-mono:    'DM Mono', 'Fira Code', monospace;

    --radius:       5px;
    --radius-md:    10px;

    --max-w:        1320px;
    --section-gap:  144px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 18px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }

.text-muted, p { color: var(--text-muted); }

.section__inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 56px;
}

.section__label {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent-light);
    margin-bottom: 48px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.section__label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    max-width: 64px;
}

.section__title {
    font-family: var(--font-display);
    font-size: clamp(2.6rem, 4vw, 3.8rem);
    font-weight: 700;
    line-height: 1.12;
    color: var(--text);
    letter-spacing: -0.02em;
}

.section__title em {
    font-style: italic;
    color: var(--text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    height: 48px;
    padding: 0 24px;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 400;
    cursor: pointer;
    border: none;
    transition: background 0.18s, color 0.18s, border-color 0.18s;
    white-space: nowrap;
}

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: #2f4cc7; }

.btn--secondary {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text);
}
.btn--secondary:hover { border-color: var(--accent-light); color: var(--accent-light); }

.btn--ghost { background: transparent; color: var(--text-muted); }
.btn--ghost:hover { color: var(--text); }

.code-block {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg-code);
    padding: 28px 32px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.code-block code { display: block; white-space: pre; }
.code-block .kw  { color: var(--code-kw); }
.code-block .fn  { color: var(--code-fn); }
.code-block .str { color: var(--code-str); }
.code-block .cmt { color: var(--code-cmt); font-style: italic; }
.code-block .num { color: var(--code-num); }
.code-block--inline { padding: 18px 22px; }

.code-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
}

.code-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 22px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-raised);
}

.code-card__title {
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.code-card__dots { display: flex; gap: 6px; }
.code-card__dots span {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--border-light);
}


.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s, background 0.3s;
}

.nav.scrolled {
    background: rgba(9, 9, 11, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-color: var(--border);
}

.nav__inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 56px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
}

.nav__logo-symbol { font-size: 1.15rem; color: var(--accent-light); }

.nav__logo-tag {
    font-size: 10.5px;
    font-weight: 300;
    color: var(--text-dim);
    border: 1px solid var(--border);
    padding: 1px 7px;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav__links a {
    font-size: 0.93rem;
    font-weight: 400;
    color: var(--text-muted);
    transition: color 0.15s;
}

.nav__links a:hover { color: var(--text); }

.nav__cta {
    display: inline-flex !important;
    align-items: center;
    height: 38px !important;
    padding: 0 18px !important;
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius) !important;
    color: var(--text) !important;
    font-size: 0.9rem !important;
    transition: border-color 0.15s, color 0.15s !important;
}
.nav__cta:hover { border-color: var(--accent-light) !important; color: var(--accent-light) !important; }

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__burger span {
    display: block; width: 24px; height: 1.5px;
    background: var(--text-muted);
    transition: transform 0.25s, opacity 0.25s;
}
.nav__burger.active span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav__burger.active span:nth-child(2) { opacity: 0; }
.nav__burger.active span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }


.download-hero {
    padding-top: 168px;
    padding-bottom: 88px;
    border-bottom: 1px solid var(--border);
}

.download-hero__content {
    max-width: 840px;
}

.download-hero__subtitle {
    font-size: 1.15rem;
    line-height: 1.85;
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 22px;
}


.download-methods {
    padding: var(--section-gap) 0;
    border-bottom: 1px solid var(--border);
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 32px;
    margin-top: 64px;
}

.method-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 40px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
}

.method-card:hover {
    border-color: var(--border-light);
}

.method-card--featured {
    border-color: var(--accent);
    border-width: 2px;
    position: relative;
}

.method-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.method-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--bg-raised);
    border-radius: var(--radius);
    color: var(--accent-light);
}

.method-card__badge {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-light);
    background: rgba(76, 110, 245, 0.1);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid var(--accent);
}

.method-card__title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
}

.method-card__desc {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.method-card .code-card {
    margin-bottom: 28px;
    flex: 1;
}

.method-card__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.method-card__actions .btn {
    width: 100%;
    justify-content: center;
}

.release-info {
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.release-info__label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.release-info__value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text);
}

.system-requirements {
    padding: var(--section-gap) 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg-raised);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.req-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 36px 32px;
    transition: border-color 0.2s;
}

.req-card:hover {
    border-color: var(--border-light);
}

.req-card__icon {
    color: var(--accent-light);
    margin-bottom: 22px;
}

.req-card__title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.req-card__value {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent-light);
    margin-bottom: 14px;
}

.req-card__desc {
    font-size: 0.9rem;
    line-height: 1.75;
    color: var(--text-muted);
    font-weight: 300;
}

.quick-start {
    padding: var(--section-gap) 0;
    border-bottom: 1px solid var(--border);
}

.quick-start__layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 96px;
    align-items: start;
}

.quick-start__intro {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 26px;
}

.quick-start__steps {
    display: flex;
    flex-direction: column;
}

.qs-step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 22px;
    padding: 30px 0;
    border-bottom: 1px solid var(--border);
}

.qs-step:first-child { border-top: 1px solid var(--border); }

.qs-step__num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.12em;
    padding-top: 4px;
}

.qs-step__body h3 {
    font-size: 0.97rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 13px;
}

.qs-step__text {
    font-size: 0.92rem;
    line-height: 1.75;
    color: var(--text-muted);
    font-weight: 300;
}

.server-config {
    padding: var(--section-gap) 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg-raised);
}

.server-tabs {
    margin-top: 64px;
}

.server-tab-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.server-tab-btn {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 28px;
    cursor: pointer;
    transition: all 0.2s;
}

.server-tab-btn:hover {
    color: var(--text);
    border-color: var(--border-light);
}

.server-tab-btn.active {
    color: var(--text);
    background: var(--bg-card);
    border-color: var(--accent);
}

.server-tab-content {
    display: none;
}

.server-tab-content.active {
    display: block;
}

.server-config__note {
    font-size: 0.9rem;
    line-height: 1.75;
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 20px;
    font-style: italic;
}

.server-config__note code {
    font-family: var(--font-mono);
    font-size: 0.83rem;
    color: var(--code-fn);
    background: var(--bg-code);
    padding: 1px 7px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.next-steps {
    padding: var(--section-gap) 0;
    border-bottom: 1px solid var(--border);
}

.next-steps__layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 96px;
    align-items: start;
}

.next-steps__desc {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 26px;
}

.next-steps__cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.next-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 36px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    transition: all 0.2s;
}

.next-card:hover {
    border-color: var(--accent-light);
    transform: translateX(4px);
}

.next-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--bg-raised);
    border-radius: var(--radius);
    color: var(--accent-light);
    flex-shrink: 0;
}

.next-card__body {
    flex: 1;
}

.next-card__title {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 6px;
}

.next-card__desc {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-muted);
    font-weight: 300;
}

.next-card__arrow {
    font-size: 1.4rem;
    color: var(--text-dim);
    transition: color 0.2s, transform 0.2s;
}

.next-card:hover .next-card__arrow {
    color: var(--accent-light);
    transform: translateX(4px);
}

.footer {
    border-top: 1px solid var(--border);
    padding: 56px 0;
}

.footer__inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 56px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.footer__brand { display: flex; flex-direction: column; gap: 7px; }
.footer__logo { font-family: var(--font-mono); font-size: 0.95rem; color: var(--text); }
.footer__tagline { font-size: 0.82rem; color: var(--text-dim); }

.footer__links { display: flex; flex-wrap: wrap; gap: 28px; }
.footer__links a { font-size: 0.9rem; color: var(--text-muted); transition: color 0.15s; }
.footer__links a:hover { color: var(--text); }

.footer__copy {
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.lang-switcher {
    position: relative;
}

.lang-switcher__trigger {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 38px;
    padding: 0 13px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.lang-switcher__trigger:hover,
.lang-switcher__trigger[aria-expanded="true"] {
    border-color: var(--accent-light);
    color: var(--accent-light);
}

.lang-switcher__globe { display: flex; align-items: center; color: inherit; }

.lang-switcher__caret {
    display: flex;
    align-items: center;
    color: inherit;
    transition: transform 0.2s ease;
}

.lang-switcher__trigger[aria-expanded="true"] .lang-switcher__caret {
    transform: rotate(180deg);
}

.lang-switcher__dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 152px;
    list-style: none;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    z-index: 200;
}

.lang-switcher__dropdown.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.lang-switcher__dropdown--up {
    top: auto;
    bottom: calc(100% + 8px);
    transform: translateY(6px);
}

.lang-switcher__dropdown--up.open {
    transform: translateY(0);
}

.lang-switcher__dropdown li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.12s;
}

.lang-switcher__dropdown li:last-child { border-bottom: none; }
.lang-switcher__dropdown li:hover { background: var(--bg-card); }
.lang-switcher__dropdown li[aria-selected="true"] { background: var(--bg-card); }
.lang-switcher__dropdown li[aria-selected="true"] .lang-switcher__code {
    color: var(--accent-light);
}

.lang-switcher__code {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    min-width: 24px;
    transition: color 0.12s;
}

.lang-switcher__name {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--text-muted);
    transition: color 0.12s;
}

.lang-switcher__dropdown li:hover .lang-switcher__code,
.lang-switcher__dropdown li:hover .lang-switcher__name {
    color: var(--text);
}

.footer__meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}

.lang-switcher--footer .lang-switcher__trigger {
    height: 32px;
    padding: 0 11px;
    font-size: 11px;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a50; }

::selection { background: var(--accent); color: #fff; }

@media (max-width: 1400px) {
    :root { --max-w: 1200px; }
    html { font-size: 17px; }
}

@media (max-width: 1100px) {
    html { font-size: 16px; }
    :root { --section-gap: 104px; }

    .section__inner { padding: 0 40px; }
    .nav__inner { padding: 0 40px; }
    .footer__inner { padding: 0 40px; }

    .methods-grid {
        grid-template-columns: 1fr;
    }

    .quick-start__layout {
        grid-template-columns: 1fr;
        gap: 64px;
    }

    .next-steps__layout {
        grid-template-columns: 1fr;
        gap: 64px;
    }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    :root { --section-gap: 80px; }

    .section__inner { padding: 0 24px; }
    .nav__inner { padding: 0 24px; }
    .footer__inner { padding: 0 24px; }

    .nav__links {
        position: fixed;
        top: 72px; left: 0; right: 0;
        background: rgba(9,9,11,0.97);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 12px 24px 22px;
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s, transform 0.2s;
    }
    .nav__links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
    .nav__links a { display: block; width: 100%; padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 1rem; }
    .nav__links a:last-child { border-bottom: none; }
    .nav__cta { border: none !important; padding: 0 !important; height: auto !important; }
    .nav__burger { display: flex; }

    .download-hero {
        padding-top: 128px;
        padding-bottom: 64px;
    }

    .methods-grid {
        grid-template-columns: 1fr;
    }

    .requirements-grid {
        grid-template-columns: 1fr;
    }

    .qs-step {
        grid-template-columns: 40px 1fr;
    }

    .next-card {
        grid-template-columns: auto 1fr;
        gap: 20px;
    }

    .next-card__arrow {
        grid-column: 2;
        justify-self: end;
    }

    .footer__inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 22px;
    }

    .lang-switcher {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid var(--border);
    }

    .lang-switcher__trigger {
        width: 100%;
        justify-content: flex-start;
        height: auto;
        padding: 0;
        border: none;
        border-radius: 0;
        font-size: 1rem;
        letter-spacing: 0;
        color: var(--text-muted);
    }

    .lang-switcher__trigger:hover,
    .lang-switcher__trigger[aria-expanded="true"] {
        border-color: transparent;
        color: var(--text);
    }

    .lang-switcher__dropdown {
        position: static;
        box-shadow: none;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-top: 10px;
        transform: none !important;
        opacity: 0;
        max-height: 0;
        overflow: hidden;
        transition: opacity 0.18s ease, max-height 0.22s ease;
    }

    .lang-switcher__dropdown.open {
        opacity: 1;
        max-height: 320px;
        pointer-events: all;
    }

    .lang-switcher--footer {
        width: auto;
        padding: 0;
        border-bottom: none;
    }

    .lang-switcher--footer .lang-switcher__trigger {
        width: auto;
        height: 32px;
        padding: 0 11px;
        border: 1px solid var(--border-light);
        border-radius: var(--radius);
        font-size: 11px;
        letter-spacing: 0.08em;
        color: var(--text-muted);
        justify-content: center;
    }

    .lang-switcher--footer .lang-switcher__dropdown {
        position: absolute;
        margin-top: 0;
        max-height: unset;
    }

    .footer__meta {
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    :root { --section-gap: 64px; }
    html { font-size: 14px; }

    .download-hero {
        padding-top: 112px;
        padding-bottom: 56px;
    }

    .method-card {
        padding: 28px 24px;
    }

    .req-card {
        padding: 28px 24px;
    }

    .next-card {
        padding: 24px 20px;
    }

    .lang-switcher--footer .lang-switcher__trigger {
        height: 30px;
        padding: 0 10px;
    }
}