.live-pill,
.coming-soon-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35em;
    color: #fff;
    font-size: 0.25em;
    font-weight: 300;
    letter-spacing: 0.08em;
    padding: 0.5em 0.8em 0.45em;
    border-radius: 999px;
    margin-left: 0.4em;
    text-transform: lowercase;
    line-height: 1;
    position: relative;
    top: -2em;
    white-space: nowrap;
}

.live-pill { background: #16a34a; }
.coming-soon-pill { background: var(--accent); }

/* breathing dot */
.live-pill::before,
.coming-soon-pill::before {
    content: "";
    display: inline-block;
    width: 0.55em;
    height: 0.55em;
    background: #fff;
    border-radius: 50%;
    flex-shrink: 0;
    animation: live-pulse 1.6s ease-in-out infinite;
}

@keyframes live-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

/* category pills — like .live-pill but without the breathing dot. */
/* usage: <span class="tag-pill tag-pill--purple">mechanism design</span> */
/* add a new color by appending one line below. */
.tag-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.45em;
    font-weight: 400;
    letter-spacing: 0.08em;
    padding: 0.6em 0.95em;
    border-radius: 999px;
    margin-left: 0.6em;
    text-transform: lowercase;
    line-height: 1;
    position: relative;
    top: -0.25em;
    white-space: nowrap;
    vertical-align: middle;
}

.tag-pill--purple { background: #9333ea; }
.tag-pill--blue   { background: #2563eb; }
.tag-pill--green  { background: #16a34a; }
.tag-pill--orange { background: #ea580c; }
.tag-pill--pink   { background: #db2777; }
.tag-pill--gray   { background: #6b7280; }

.booster-check {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
    margin: 1rem 0;
}

@media (max-width: 600px) {
    .booster-check {
        row-gap: 1rem;
    }
    .booster-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 8px;
    }
}

.booster-check input {
    width: 480px;
    max-width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 16px;
    border: 1px solid var(--sidebar-spacer, #3b4556);
    border-radius: 6px;
    background: transparent;
    color: inherit;
    outline: none;
}

.booster-check input:focus {
    border-color: #16a34a;
}

.booster-check button {
    padding: 12px 22px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    background: #16a34a;
    color: #fff;
    cursor: pointer;
}

.booster-check button:hover:not(:disabled) {
    background: #15803d;
}

.booster-check button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.booster-result {
    flex-basis: 100%;
    font-size: 16px;
    line-height: 1.4;
    min-height: 1.2em;
}

.booster-message {
    margin: 0;
}

.booster-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 12px;
}

.booster-grid img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    border-radius: 6px;
}

.booster-result[data-state="error"] { color: #dc2626; }
.booster-result[data-state="success"] { color: #16a34a; }
.booster-result[data-state="empty"] { opacity: 0.7; }
.booster-result[data-state="loading"] { opacity: 0.7; }

.nav-live-pill {
    display: inline-flex;
    align-items: center;
    background: #16a34a;
    color: #fff;
    font-size: 0.55em;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.35em 0.6em;
    border-radius: 999px;
    margin-left: 0.5em;
    text-transform: uppercase;
    line-height: 1;
    vertical-align: middle;
    white-space: nowrap;
}


/* USD8 docs shell: mirrors the current usd8.fi mdBook theme while retaining mdBook 0.5 search. */
@font-face {
    font-family: "BlexMono Nerd Font Mono";
    src: url("../../../assets/fonts/BlexMonoNerdFontMono-ExtraLight.woff2") format("woff2");
    font-style: normal;
    font-weight: 200;
    font-display: swap;
}

@font-face {
    font-family: "BlexMono Nerd Font Mono";
    src: url("../../../assets/fonts/BlexMonoNerdFontMono-Regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "BlexMono Nerd Font Mono";
    src: url("../../../assets/fonts/BlexMonoNerdFontMono-SemiBold.woff2") format("woff2");
    font-style: normal;
    font-weight: 600;
    font-display: swap;
}

@font-face {
    font-family: "FontAwesome";
    src: url("../../../assets/fonts/fontawesome-webfont.woff2") format("woff2");
    font-style: normal;
    font-weight: normal;
    font-display: block;
}

:root {
    font-size: 60%;
    --sidebar-target-width: 220px;
    --sidebar-width: min(var(--sidebar-target-width), 80vw);
    --page-padding: 15px;
    --content-max-width: 750px;
    --menu-bar-height: 50px;
    --mono-font: "BlexMono Nerd Font Mono", monospace;
    --bg: #252525;
    --fg: #ffffff;
    --sidebar-bg: #1e1e1e;
    --sidebar-fg: var(--link);
    --sidebar-non-existant: #505274;
    --sidebar-active: var(--link);
    --sidebar-spacer: #333333;
    --scrollbar: var(--sidebar-fg);
    --icons: #737480;
    --icons-hover: #b7b9cc;
    --links: var(--link);
    --inline-code-color: #c5c8c6;
    --theme-popup-bg: #161923;
    --theme-popup-border: #737480;
    --theme-hover: #282e40;
    --quote-bg: hsl(226, 15%, 17%);
    --quote-border: hsl(226, 15%, 22%);
    --warning-border: #ff8e00;
    --table-border-color: hsl(226, 23%, 16%);
    --table-header-bg: hsl(226, 23%, 31%);
    --table-alternate-bg: hsl(226, 23%, 14%);
    --searchbar-border-color: #aaa;
    --searchbar-bg: #aeaec6;
    --searchbar-fg: #000;
    --searchbar-shadow-color: #aaa;
    --searchresults-header-fg: #5f5f71;
    --searchresults-border-color: #5c5c68;
    --searchresults-li-bg: #242430;
    --search-mark-bg: #a2cff5;
    --color-scheme: dark;
}

html,
html.ayu,
html.coal,
html.light,
html.rust,
html.navy {
    --bg: #252525;
    --fg: #ffffff;
    --sidebar-bg: #1e1e1e;
    --sidebar-fg: var(--link);
    --sidebar-non-existant: #505274;
    --sidebar-active: var(--link);
    --sidebar-spacer: #333333;
    --scrollbar: var(--sidebar-fg);
    --icons: #737480;
    --icons-hover: #b7b9cc;
    --links: var(--link);
    --inline-code-color: #c5c8c6;
    --theme-popup-bg: #161923;
    --theme-popup-border: #737480;
    --theme-hover: #282e40;
    --quote-bg: hsl(226, 15%, 17%);
    --quote-border: hsl(226, 15%, 22%);
    --warning-border: #ff8e00;
    --table-border-color: hsl(226, 23%, 16%);
    --table-header-bg: hsl(226, 23%, 31%);
    --table-alternate-bg: hsl(226, 23%, 14%);
    --searchbar-border-color: #aaa;
    --searchbar-bg: #aeaec6;
    --searchbar-fg: #000;
    --searchbar-shadow-color: #aaa;
    --searchresults-header-fg: #9a9aab;
    --searchresults-border-color: #5c5c68;
    --searchresults-li-bg: #242430;
    --search-mark-bg: #a2cff5;
    --color-scheme: dark;
    font-family: "BlexMono Nerd Font Mono", Arial, sans-serif;
    color: var(--fg);
    background: var(--bg);
}

body {
    font-size: 1.6rem;
}

code,
kbd,
pre {
    font-family: var(--mono-font) !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "BlexMono Nerd Font Mono", monospace;
    font-weight: 200;
    letter-spacing: 0.01em;
}

h1,
h2 {
    font-size: 2.5em;
    margin-block-start: 1.2em;
    margin-block-end: 0.6em;
}

.content .faq-title ~ h2 {
    font-size: 1.5em;
}

.content .faq-question::before {
    content: "+";
    margin-right: 0.6em;
}

.content .header.faq-question {
    pointer-events: auto;
    cursor: pointer;
}

.content .faq-question[aria-expanded="true"]::before {
    content: "−";
}

.content .faq-answer[hidden] {
    display: none;
}

.content .faq-answer > :last-child {
    margin-bottom: 0;
}

h3 { font-size: 1.45em; }
h4 { font-size: 1.2em; }
h5, h6 { font-size: 1em; }
h2, h3 { margin-block-start: 2.5em; }
h4, h5 { margin-block-start: 2em; }

h1:target::before,
h2:target::before,
h3:target::before,
h4:target::before,
h5:target::before,
h6:target::before,
dt:target::before {
    display: none;
}

.content main {
    max-width: var(--content-max-width);
    padding-top: 40px;
}

.content p {
    line-height: 1.8em;
    margin-bottom: 2em;
}

.content ol,
.content ul {
    line-height: 1.7em;
    margin-bottom: 2em;
}

.content li {
    line-height: 1.4em;
    margin-bottom: 1.3em;
}

.content .example-box {
    margin: 2.4em 0;
    padding: 2.2em;
    background: #55451f;
    color: #fff;
}

.content .example-box p,
.content .example-box ol {
    margin-top: 0;
    margin-bottom: 1em;
}

.content .example-box li:last-child {
    margin-bottom: 0;
}

.content .comparison-yes,
.content .comparison-no {
    font-size: 1.35em;
    font-weight: 600;
}

.content .comparison-yes { color: #22c55e; }
.content .comparison-no { color: #ef4444; }

.content table {
    width: 100%;
    border: 1px solid #333;
    border-collapse: collapse;
    background: #202020;
    table-layout: fixed;
}

.content table thead tr {
    background: #181818;
}

.content table th,
.content table td {
    width: 33.333%;
    height: 72px;
    padding: 0 20px;
    border: 1px solid #333;
    background: #202020;
    color: var(--fg);
    vertical-align: middle;
}

.content table thead th {
    background: #181818;
}

.content table th:not(:first-child),
.content table td:not(:first-child) {
    text-align: center;
}

.content .comparison-token {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.content .comparison-token img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: contain;
}

.content table small {
    display: inline-block;
    margin-top: 0.35em;
    line-height: 1.35;
}

.content .header:not(.faq-question),
.content .header:not(.faq-question):link,
.content .header:not(.faq-question):visited,
.content .header:not(.faq-question):hover {
    color: var(--fg);
    text-decoration: none;
    pointer-events: none;
    cursor: default;
}

.floating-logo {
    display: inline-block;
    width: 170px;
    animation: hero-float 4s ease-in-out infinite;
}

@keyframes hero-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
}

#mdbook-menu-bar,
#mdbook-menu-bar-hover-placeholder {
    margin: auto calc(0px - var(--page-padding));
}

#mdbook-menu-bar {
    background: var(--bg);
    border-block-end-color: var(--bg);
}

#mdbook-theme-toggle,
.right-buttons,
.menu-title,
.nav-wide-wrapper,
.nav-wrapper,
.mobile-nav-chapters,
.nav-chapters {
    display: none !important;
}

#mdbook-menu-bar .fa-svg,
#mdbook-menu-bar .icon-button {
    color: var(--icons);
}

#mdbook-menu-bar .fa-svg:hover,
#mdbook-menu-bar .icon-button:hover {
    color: var(--icons-hover);
}

#mdbook-search-wrapper {
    padding-inline: var(--page-padding);
    background: var(--bg);
}

#mdbook-searchbar {
    font-family: "BlexMono Nerd Font Mono", monospace;
    font-size: 1em;
}

.sidebar {
    font-size: 15px;
    background: var(--sidebar-bg);
    color: var(--sidebar-fg);
}

.sidebar .sidebar-scrollbox {
    bottom: 60px;
    padding: 10px;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 23px;
    margin: 4px 0 20px;
}

.sidebar-logo {
    display: block;
    width: 64px;
    flex: 0 0 auto;
}

.sidebar-logo img {
    display: block;
    width: 100%;
    height: auto;
}

.sidebar-logo:hover,
.sidebar-logo:focus-visible {
    background: transparent;
    filter: brightness(0.82);
}

.sidebar-beta-link,
.sidebar-beta-link:link,
.sidebar-beta-link:visited,
.sidebar-beta-link:active,
.sidebar-beta-link:hover,
.sidebar-beta-link:focus-visible {
  font-size: 12px;
    width: 44px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    background: rgb(208, 153, 40);
    color: #fff;
    line-height: 1;
    text-decoration: none;
}

.sidebar-beta-link:hover,
.sidebar-beta-link:focus-visible {
    background: color-mix(in srgb, rgb(208, 153, 40) 82%, black);
}

.chapter li.chapter-item {
    line-height: 1.5em;
    margin-block-start: 0.6em;
}

.sidebar-external-icon {
    display: inline-block;
    margin-left: 0.45em;
    font-size: 0.85em;
    line-height: 1;
}

.sidebar-social {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 12px;
    display: flex;
    justify-content: center;
    gap: 12px;
}

.sidebar-telegram,
.sidebar-x,
.sidebar-github {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    text-decoration: none;
    font-family: "BlexMono Nerd Font Mono", monospace;
    font-size: 22px;
}

.sidebar-github { font-size: 26px; }

.sidebar-telegram > span,
.sidebar-github > span {
    font-family: "FontAwesome";
    font-style: normal;
    font-weight: normal;
    -webkit-font-smoothing: antialiased;
}

.sidebar-telegram > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    line-height: 1;
}

.sidebar-github > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    line-height: 1;
}

.sidebar-social .sidebar-telegram,
.sidebar-social .sidebar-x,
.sidebar-social .sidebar-github {
    color: rgb(255, 255, 255);
    background: transparent;
}

.sidebar-social .sidebar-telegram:hover,
.sidebar-social .sidebar-telegram:focus-visible,
.sidebar-social .sidebar-x:hover,
.sidebar-social .sidebar-x:focus-visible,
.sidebar-social .sidebar-github:hover,
.sidebar-social .sidebar-github:focus-visible {
    color: rgb(255, 212, 0);
    background: transparent;
}

.sidebar-x .x-mark {
    display: block;
    width: 22px;
    height: 22px;
    background: currentColor;
    -webkit-mask: url("/assets/xlogo.svg") center / contain no-repeat;
    mask: url("/assets/xlogo.svg") center / contain no-repeat;
}

@media (prefers-reduced-motion: reduce) {
    .floating-logo,
    .live-pill::before,
    .coming-soon-pill::before {
        animation: none;
    }
}

@media only screen and (max-width: 620px) {
    .content main { padding-top: 30px; }
    h1,
    h2 { font-size: 2.5em; }
    .floating-logo { width: 130px; }
}

/* Match the application typography and shared footer. */
html,
body,
button,
input,
a,
.content,
.sidebar {
    font-family: "BlexMono Nerd Font Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

body {
    font-weight: 400;
}

.content h1 > .header,
.content h2 > .header,
.content h3 > .header,
.content h4 > .header,
.content h5 > .header,
.content h6 > .header {
    border-bottom: 0 !important;
}

/* Keep the sidebar page-level; mdBook otherwise injects every heading. */
.sidebar .on-this-page {
    display: none;
}