@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("../fonts/inter-latin-400.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("../fonts/inter-latin-600.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("../fonts/inter-latin-700.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("../fonts/inter-cyrillic-400.woff2") format("woff2");
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("../fonts/inter-cyrillic-600.woff2") format("woff2");
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}@font-face{
    font-family: "Inter";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("../fonts/inter-cyrillic-700.woff2") format("woff2");
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

:root {
    --base: #1F2024;
    --divider: rgba(255, 255, 255, .05);
    --wash: rgba(255, 255, 255, .05);
    --text: #F4F4F6;
    --text-2: #B8BAC0;
    --text-3: #82838C;
    --accent: #FF6680;
    --accent-grad: linear-gradient(135deg, #FFBC70 0%, #FF6680 55%, #B62078 100%);
    --accent-soft: rgba(255, 102, 128, .2);
    --on-accent: #FFFFFF;
    --warn: #EDA63C;
    --sh-raised: 6px 6px 14px 0 rgba(0, 0, 0, .6), -5px -5px 12px 0 rgba(255, 255, 255, .04);
    --sh-raised-sm: 3px 3px 7px 0 rgba(0, 0, 0, .6), -3px -3px 7px 0 rgba(255, 255, 255, .04);
    --sh-sunken: inset 3px 3px 7px 0 rgba(0, 0, 0, .6), inset -3px -3px 7px 0 rgba(255, 255, 255, .04);
    --sh-window: 10px 10px 26px 0 rgba(0, 0, 0, .6), -6px -6px 18px 0 rgba(255, 255, 255, .03);
    --radius-sm: 10px;
    --radius: 16px;
    --radius-card: 20px;
    --radius-pill: 999px;
    --container: 1140px;
    --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    --mono: "Cascadia Code", "Consolas", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--base); color: var(--text);
    font-family: var(--font); font-size: 16px; line-height: 1.55;
    -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent-soft); }
img { max-width: 100%; height: auto; display: block; }
main { padding-top: 64px; }
section { margin-bottom: 64px; }
a { color: var(--text-2); text-decoration: none; }
a:hover { color: var(--text); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[id] { scroll-margin-top: 90px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* header */
.site-header { position: sticky; top: 14px; z-index: 50;
    width: min(var(--container), calc(100% - 32px)); margin: 14px auto 0;
    border-radius: var(--radius-card); background: var(--base);
    box-shadow: var(--sh-raised); border: 1px solid var(--divider); }
.site-header .container { display: flex; align-items: center; gap: 18px; height: 56px; }
.brand { display: inline-flex; align-items: center; gap: 10px;
    font-weight: 700; font-size: 17px; color: var(--text); white-space: nowrap; }
.brand img { width: 24px; height: 25px; }
.brand .accent { color: var(--accent); }
.main-nav { display: flex; gap: 8px; margin-left: auto; }
.main-nav a { padding: 7px 14px; border-radius: var(--radius); font-size: 14px;
    color: var(--text-2); background: var(--base); box-shadow: var(--sh-raised-sm);
    transition: box-shadow .15s ease; white-space: nowrap; }
.main-nav a:hover { color: var(--text); box-shadow: var(--sh-raised); }
.main-nav a:active { box-shadow: var(--sh-sunken); }
.main-nav a.on { color: var(--accent); box-shadow: var(--sh-sunken); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.header-actions a { display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 12px; border-radius: var(--radius); font-size: 14px;
    color: var(--text-2); background: var(--base); box-shadow: var(--sh-raised-sm);
    transition: box-shadow .15s ease; white-space: nowrap; }
.header-actions a:hover { color: var(--text); box-shadow: var(--sh-raised); }
.header-actions a:active { box-shadow: var(--sh-sunken); }
.header-actions a.on { color: var(--accent); box-shadow: var(--sh-sunken); }
.header-actions a svg { width: 16px; height: 16px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: var(--radius); border: 1px solid var(--divider);
    font-size: 15px; font-weight: 600; color: var(--text);
    background: var(--base); box-shadow: var(--sh-raised-sm);
    cursor: pointer; transition: box-shadow .15s ease, transform .15s ease; }
.btn svg { width: 17px; height: 17px; }
.btn:hover { box-shadow: var(--sh-raised); }
.btn:active { box-shadow: var(--sh-sunken); transform: none; }
.btn-primary { background: var(--accent-grad); color: var(--on-accent);
    box-shadow: var(--sh-raised-sm); border: none; }
.btn-primary:hover { color: var(--on-accent); box-shadow: var(--sh-raised);
    transform: translateY(-1px); }
.btn-ghost:hover { color: var(--text); box-shadow: var(--sh-raised); }
.btn-hero { position: relative; padding: 14px 44px; border-radius: var(--radius); border: none; }
.btn-hero svg { position: absolute; left: 22px; top: 50%; transform: translateY(-50%);
    width: 20px; height: 20px; }
.btn-hero-c { display: flex; flex-direction: column; align-items: center;
    text-align: center; line-height: 1.35; margin-left: 18px; }
.btn-hero-t { font-size: 17px; }
.btn-hero-s { font-size: 12.5px; font-weight: 400; opacity: .82; }
.copy-btn { flex: none; margin: 0; padding: 9px 16px; font-size: 13px;
    font-family: var(--font); color: var(--text-2); background: var(--base);
    border: 1px solid var(--divider); border-radius: var(--radius);
    box-shadow: var(--sh-raised-sm); cursor: pointer; transition: box-shadow .15s ease; }
.copy-btn:hover { color: var(--text); box-shadow: var(--sh-raised); }
.copy-btn:active { box-shadow: var(--sh-sunken); }
.copy-btn[disabled] { opacity: .45; pointer-events: none; cursor: not-allowed; }

/* hero */
.hero { margin-bottom: 64px; }
.hero-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.15fr);
    gap: 44px; align-items: center; }
.hero-copy { min-width: 0; }
.hero-title { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.hero-title img { width: 56px; height: 59px; }
.hero-title h1 { margin: 0; font-size: 38px; line-height: 1.15; letter-spacing: -.02em; }
.tagline { font-size: 20px; font-weight: 600; margin: 0 0 12px; }
.lead { color: var(--text-2); font-size: 16.5px; margin: 0 0 26px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-shot { text-align: left; }
.shot { border-radius: 12px; box-shadow: var(--sh-window); border: 1px solid var(--divider); }

/* generic sections */
.section-title { font-size: 26px; margin: 0 0 22px; letter-spacing: -.01em; }
.eyebrow { color: var(--text-3); font-size: 12.5px; text-transform: uppercase;
    letter-spacing: .08em; margin-bottom: 8px; }
.home-panel { padding: 30px 34px; border-radius: var(--radius-card);
    background: var(--base); box-shadow: var(--sh-raised); border: 1px solid var(--divider); }
.home-panel p { margin: 0 0 14px; }
.home-panel p:last-child { margin-bottom: 0; }
.note { color: var(--text-3); }
.cta-panel { text-align: center; padding: 40px 30px; border-radius: var(--radius-card);
    background: var(--base); box-shadow: var(--sh-raised); border: 1px solid var(--divider); }
.cta-title { margin: 0 0 10px; font-size: 22px; }
.cta-lead { margin: 0 0 22px; color: var(--text-2); }

/* feature cards */
.feat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.feat-grid-3 { grid-template-columns: repeat(3, 1fr); }
.feat-card { padding: 30px 34px; border-radius: var(--radius-card);
    background: var(--base); box-shadow: var(--sh-raised);
    border: 1px solid var(--divider); min-width: 0; }
.feat-ic { display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: var(--radius-sm);
    background: var(--base); box-shadow: var(--sh-sunken); color: var(--accent);
    flex: none; margin-bottom: 14px; }
.feat-ic svg { width: 20px; height: 20px; }
.feat-card h3 { margin: 0 0 8px; font-size: 1.02rem; }
.feat-card p { font-size: 14.5px; color: var(--text-2); margin: 0; line-height: 1.55; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
    margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { display: flex; gap: 14px; counter-increment: step;
    align-items: flex-start; }
.steps li::before { content: counter(step); flex: none;
    width: 34px; height: 34px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; color: var(--accent);
    background: var(--base); box-shadow: var(--sh-sunken); }

/* callouts */
.callout { border-radius: var(--radius-sm); padding: 12px 16px; margin: 18px 0;
    box-shadow: var(--sh-sunken); border: 1px solid var(--divider);
    color: var(--text-2); font-size: .95em; }
.callout b { display: block; margin-bottom: 4px; color: var(--text); }
.callout p { margin: 6px 0; }
.callout-note { border-left: 3px solid var(--accent); }
.callout-tip { border-left: 3px solid #6CC070; }
.callout-warn { border-left: 3px solid var(--warn); }

/* docs */
.docs-layout { display: grid; grid-template-columns: 240px minmax(0,1fr);
    gap: 32px; align-items: start; }
.docs-nav { position: sticky; top: 92px; display: flex; flex-direction: column; gap: 8px; }
.docs-nav a { display: block; padding: 9px 14px; border-radius: var(--radius);
    color: var(--text-2); background: var(--base); box-shadow: var(--sh-raised-sm);
    text-decoration: none; font-size: .95em; transition: box-shadow .15s ease; }
.docs-nav a:hover { color: var(--text); box-shadow: var(--sh-raised); background: var(--base); }
.docs-nav a:active { box-shadow: var(--sh-sunken); }
.docs-nav a.active { color: var(--accent); box-shadow: var(--sh-sunken); background: var(--base); }
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.docs-grid-card { display: flex; gap: 14px; align-items: flex-start; padding: 16px;
    border-radius: var(--radius); background: var(--base);
    box-shadow: var(--sh-raised); border: 1px solid var(--divider);
    color: var(--text); text-decoration: none;
    transition: transform .15s ease, box-shadow .15s ease; }
.docs-grid-card:hover { transform: translateY(-2px); box-shadow: var(--sh-window); }
.docs-grid-card svg { color: var(--accent); flex: none; margin-top: 2px; }
.docs-grid-card b { display: block; }
.docs-grid-card span { color: var(--text-2); font-size: .9em; }

/* page body typography */
.page-body { padding: 0 0 88px; }
.page-body h1 { font-size: 32px; margin: 0 0 18px; letter-spacing: -.02em; }
.page-body h2 { font-size: 20px; margin: 40px 0 14px; }
.page-body h3 { font-size: 16.5px; margin: 28px 0 10px; }
.page-body p, .page-body li { color: var(--text-2); font-size: 15px; }
.page-body ul { padding-left: 22px; }
.page-body li { margin: 6px 0; }
.page-body li::marker { color: var(--accent); }
.page-body a { color: var(--text-2); }
.page-body a:hover { color: var(--accent); }
.page-body code { font-family: var(--mono); font-size: .92em;
    background: var(--base); box-shadow: var(--sh-sunken);
    border-radius: 6px; padding: 2px 7px; overflow-wrap: break-word; }
.page-body pre { background: var(--base); box-shadow: var(--sh-sunken);
    border-radius: var(--radius-sm); padding: 16px 18px; overflow-x: auto; }
.page-body pre code { background: none; box-shadow: none; padding: 0; }
.page-body table { width: 100%; border-collapse: separate; border-spacing: 0;
    border: 1px solid var(--divider); border-radius: var(--radius-sm);
    background: var(--base); box-shadow: var(--sh-sunken);
    overflow: hidden; font-size: 13.5px; margin: 14px 0; }
.page-body th, .page-body td { text-align: left; padding: 10px 14px;
    border-bottom: 1px solid var(--divider); }
.page-body tr:last-child td { border-bottom: none; }
.page-body tbody tr:hover td { background: rgba(255, 255, 255, .02); }
.page-body hr { border: none; border-top: 1px solid var(--divider); margin: 26px 0; }
.page-body blockquote { margin: 18px 0; padding: 10px 16px;
    border-left: 3px solid var(--divider); color: var(--text-2); }
.license-plain pre { box-shadow: none; border: none; background: none;
    padding: 0; overflow: visible; white-space: pre-wrap;
    font-family: inherit; color: var(--text-2); font-size: 15px; }

/* download */
.dl-block { max-width: 560px; }
.dl-os { color: var(--text-3); font-size: 12.5px; text-transform: uppercase;
    letter-spacing: .06em; margin-bottom: 6px; }
.dl-ver { font-size: 17px; margin-bottom: 18px; }
.dl-badge { display: inline-flex; align-items: center; padding: 2px 9px;
    border-radius: var(--radius-pill); font-size: 11.5px; font-weight: 600;
    color: var(--warn); background: rgba(237, 166, 60, .12); }
.dl-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.dl-actions .btn-hero { flex: none; }
.dl-actions .btn-ghost { align-self: center; padding: 12px 22px;
    min-height: 68px; display: inline-flex; align-items: center; }
.dl-sha-label { font-size: 12px; color: var(--text-3); text-transform: uppercase;
    letter-spacing: .06em; margin-bottom: 8px; }
.dl-sha-line { max-width: 520px; }
.dl-sha-field { font-size: 13px; }
.dl-sha-field code { word-break: break-all; }
.dl-hint { color: var(--text-3); font-size: 13px; margin-top: 12px; }
.dl-hint a { color: var(--accent); }

/* donate wallets */
.wallet-list { display: flex; flex-direction: column; gap: 14px; }
.wallet-item { display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
    padding: 16px 18px; border-radius: var(--radius);
    background: var(--base); box-shadow: var(--sh-raised); border: 1px solid var(--divider); }
.wallet-qr { flex: none; width: 84px; height: 84px; padding: 6px;
    background: #FFFFFF; border-radius: var(--radius-sm); box-shadow: var(--sh-raised-sm); }
.wallet-info { flex: 1 1 240px; min-width: 0; }
.wallet-name { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.wallet-name b { font-size: 15px; color: var(--text); }
.wallet-name span { font-size: 12px; color: var(--text-3); }
.wallet-line { display: flex; align-items: stretch; gap: 10px; }
.wallet-addr { flex: 1 1 auto; min-width: 0; display: flex; align-items: center;
    padding: 9px 14px; font-family: var(--mono); font-size: 14px; color: var(--text);
    background: var(--base); box-shadow: var(--sh-sunken);
    border: 1px solid var(--divider); border-radius: var(--radius-sm); word-break: break-all; }
.wallet-badge { display: inline-flex; align-items: center; justify-content: center;
    padding: 2px 9px; border-radius: var(--radius-pill);
    font-size: 11.5px; font-weight: 600; text-align: center; vertical-align: middle; }
.wallet-badge.wb-btc  { color: #FFB84D; background: #3A2B14; }
.wallet-badge.wb-usdt { color: #4ADE9C; background: #15352B; }
.wallet-badge.wb-eth  { color: #93AEFF; background: #1B2440; }

/* footer */
.site-footer { margin-top: 30px; border-top: 1px solid var(--divider);
    background: var(--base); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 30px; padding: 36px 0 28px; }
.footer-brand img { width: 30px; height: 32px; margin-bottom: 12px; }
.footer-brand p { color: var(--text-3); font-size: 13px; margin: 0; max-width: 260px; }
.footer-col b { display: block; font-size: 13px; margin-bottom: 10px; color: var(--text); }
.footer-col a { display: block; color: var(--text-2); font-size: 13.5px; padding: 3px 0; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px;
    flex-wrap: wrap; padding: 16px 0 22px; border-top: 1px solid var(--divider);
    color: var(--text-3); font-size: 12.5px; }

/* responsive */
@media (max-width: 1000px) { .feat-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
@media (max-width: 800px) {
    .docs-layout { grid-template-columns: 1fr; }
    .docs-nav { position: static; flex-direction: row; flex-wrap: wrap; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .feat-grid-3, .feat-grid { grid-template-columns: 1fr; }
    .cta-panel { padding: 30px 20px; }
    .dl-actions { flex-direction: column; }
    .dl-actions .btn-hero { width: 100%; }
    .dl-actions .btn-ghost { align-self: flex-start; min-height: 0; }
    .wallet-line { flex-direction: column; }
    .wallet-item .copy-btn { align-self: stretch; }
    .docs-grid { grid-template-columns: 1fr; }
    .container { padding: 0 16px; }
    .hero-title h1 { font-size: 28px; }
    .tagline { font-size: 17px; }
    .lead { font-size: 15px; }
    .page-body h1 { font-size: 25px; }
    .page-body table { display: block; overflow-x: auto; max-width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 22px; }
    .footer-bottom { flex-direction: column; gap: 4px; }
}
@media (max-width: 860px) {
    .site-header .container { flex-wrap: wrap; height: auto; min-height: 56px;
        padding-top: 8px; padding-bottom: 8px; row-gap: 8px; }
    .main-nav { order: 3; flex-basis: 100%; margin-left: 0; flex-wrap: wrap; }
    .header-actions { margin-left: auto; }
    .site-header .container { gap: 10px 14px; }
}
@media (max-width: 480px) {
    .header-actions a span { display: none; }
    .site-header { top: 8px; margin-top: 8px; width: calc(100% - 16px); }
    .site-header .container { padding: 8px 12px; gap: 8px 10px; }
    .brand { font-size: 15px; }
    .main-nav a { padding: 6px 10px; font-size: 13px; }
    .hero-title img { width: 44px; height: 46px; }
    .wallet-item { gap: 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* buttons inside page text keep their own colors */
.page-body a.btn-primary, .page-body a.btn-primary:hover { color: var(--on-accent); }
.page-body a.btn-ghost { color: var(--text-2); }
.page-body a.btn-ghost:hover { color: var(--text); }

/* light theme — Greystone reference */
html[data-theme="light"] {
    --base: #EDEDED;
    --divider: rgba(35, 45, 61, .10);
    --wash: rgba(0, 0, 0, .04);
    --text: #262A34;
    --text-2: #4A4F5A;
    --text-3: #767E8E;
    --accent: #E04A6E;
    --accent-soft: rgba(224, 74, 110, .15);
    --warn: #C77F1F;
    --sh-raised: 6px 6px 14px 0 rgba(160, 165, 172, .55), -5px -5px 12px 0 rgba(255, 255, 255, .75);
    --sh-raised-sm: 3px 3px 7px 0 rgba(160, 165, 172, .55), -3px -3px 7px 0 rgba(255, 255, 255, .75);
    --sh-sunken: inset 3px 3px 7px 0 rgba(160, 165, 172, .55), inset -3px -3px 7px 0 rgba(255, 255, 255, .75);
    --sh-window: 6px 6px 18px 0 rgba(0, 0, 0, .15), -4px -4px 14px 0 rgba(255, 255, 255, .6);
}

/* theme toggle: segmented moon|sun */
.theme-toggle { display: inline-flex; border-radius: var(--radius);
    box-shadow: var(--sh-sunken); background: var(--base); }
.theme-toggle button { display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 32px; border: none; background: none; color: var(--text-3);
    cursor: pointer; border-radius: var(--radius); }
.theme-toggle button.on { color: var(--accent); background: var(--base);
    box-shadow: var(--sh-raised-sm); }

/* logo is white line-art — invert on light theme */
html[data-theme="light"] .brand img,
html[data-theme="light"] .footer-brand img,
html[data-theme="light"] .hero-title img { filter: invert(.85); }

/* language selector (dummy) + header right cluster */
.lang-select { position: relative; display: inline-flex; }
.lang-btn { display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 12px; border: none; border-radius: var(--radius);
    font: inherit; font-size: 14px; color: var(--text-2);
    background: var(--base); box-shadow: var(--sh-raised-sm); cursor: pointer;
    transition: box-shadow .15s ease; }
.lang-btn:hover { color: var(--text); box-shadow: var(--sh-raised); }
.lang-btn svg { width: 16px; height: 16px; }
.lang-menu { display: none; position: absolute; right: 0; top: calc(100% + 8px);
    min-width: 190px; padding: 6px; border-radius: var(--radius);
    background: var(--base); box-shadow: var(--sh-window); border: 1px solid var(--divider);
    z-index: 60; }
.lang-select.open .lang-menu { display: block; }
.lang-menu button, .lang-menu a { display: block; width: 100%; text-align: left;
    padding: 8px 12px; border: none; border-radius: var(--radius-sm);
    font: inherit; font-size: 14px; color: var(--text-2); background: none;
    cursor: pointer; text-decoration: none; }
.lang-menu button:hover, .lang-menu a:hover { color: var(--text); box-shadow: var(--sh-sunken); }
.lang-menu button.on, .lang-menu a.on { color: var(--accent); }

.accent { color: var(--accent); }