/* The help center (/help/, rendered by cmd/webapp from webapp/help). Same
   palette as the landing page (src/css/landing.css), the desktop panel and
   the remote. Not part of the installed app. */
:root {
    --accent: #50dea8;
    --accent-light: #7ae8bf;
    --accent-rgb: 80, 222, 168;
    --on-accent: #102a20;
    --background: #1c1d22;
    --surface: #25272d;
    --raised: #2a2c33;
    --control: #3a3d46;
    --divider: #33353c;
    --text: #ececf0;
    --muted: #9a9ca6;
    --caption: #7e818c;
    --berry: #f2416f;
    --berry-rgb: 242, 65, 111;
    --warning: #f5b84b;
    --warning-rgb: 245, 184, 75;
    --radius: 14px;
    --header: 60px;
    --nav: 260px;
    --gutter: 20px;
}

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

html { scroll-padding-top: calc(var(--header) + 16px); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
    font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-light); text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
[hidden] { display: none !important; }

.skip-link { position: absolute; left: 12px; top: -48px; z-index: 30; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 8px; font-weight: 600; }
.skip-link:focus { top: 10px; }

/* Material Symbols as masks, painted in the text colour (as on the landing page). */
.icon {
    display: inline-block;
    flex-shrink: 0;
    width: 1em;
    height: 1em;
    font-size: 20px;
    vertical-align: middle;
    background-color: currentColor;
    -webkit-mask: var(--icon) center / contain no-repeat;
    mask: var(--icon) center / contain no-repeat;
}
.icon[data-icon="search"] { --icon: url("/assets/icons/search.svg"); }
.icon[data-icon="mic"] { --icon: url("/assets/icons/mic.svg"); }
.icon[data-icon="graphic_eq"] { --icon: url("/assets/icons/graphic_eq.svg"); }
.icon[data-icon="headset_mic"] { --icon: url("/assets/icons/headset_mic.svg"); }
.icon[data-icon="volume_up"] { --icon: url("/assets/icons/volume_up.svg"); }
.icon[data-icon="computer"] { --icon: url("/assets/icons/computer.svg"); }

/* The panel's soft accent light from the top left corner. */
.page-glow {
    position: absolute;
    inset: 0 0 auto 0;
    height: 640px;
    pointer-events: none;
    z-index: -1;
    background: radial-gradient(ellipse 560px 460px at 0 0, rgba(var(--accent-rgb), 0.14), transparent 70%);
}

/* --- Header --- */
.hc-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(28, 29, 34, 0.82);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: env(safe-area-inset-top);
}
.hc-header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: var(--header);
    padding: 0 max(var(--gutter), env(safe-area-inset-right)) 0 max(var(--gutter), env(safe-area-inset-left));
}
.hc-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; letter-spacing: 0.16em; font-size: 15px; flex-shrink: 0; }
.hc-brand:hover { color: var(--text); text-decoration: none; }
.hc-brand em { font-style: normal; letter-spacing: 0.02em; font-weight: 600; color: var(--accent); }
.hc-menu {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-left: -8px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}
.hc-menu:hover { background: var(--raised); }
.hc-site { margin-left: auto; color: var(--muted); font-size: 14px; white-space: nowrap; }
.hc-site:hover { color: var(--text); }

/* --- Search --- */
.hc-search { position: relative; flex: 0 1 380px; margin-left: 24px; }
.hc-search > .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--caption); pointer-events: none; }
.hc-search input {
    width: 100%;
    height: 38px;
    padding: 0 36px 0 40px;
    border-radius: 10px;
    border: 1px solid var(--divider);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-size: 15px;
    -webkit-appearance: none;
    appearance: none;
}
.hc-search input::placeholder { color: var(--caption); }
.hc-search input:focus { outline: none; border-color: rgba(var(--accent-rgb), 0.6); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15); }
.hc-search input::-webkit-search-cancel-button { display: none; }
.hc-search-key { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); }
.hc-search input:focus ~ .hc-search-key { display: none; }
.hc-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: min(520px, calc(100vw - 2 * var(--gutter)));
    max-height: min(70vh, 520px);
    overflow-y: auto;
    padding: 6px;
    border-radius: 12px;
    background: var(--raised);
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
}
.hc-result { display: block; padding: 9px 12px; border-radius: 8px; color: var(--text); }
.hc-result:hover, .hc-result[aria-selected="true"] { background: var(--control); color: var(--text); text-decoration: none; }
.hc-result strong { display: block; font-size: 15px; font-weight: 600; }
.hc-result small { display: block; color: var(--caption); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.hc-result span { display: block; color: var(--muted); font-size: 13px; line-height: 1.45; margin-top: 2px; }
.hc-result mark { background: none; color: var(--accent); font-weight: 600; }
.hc-noresult { padding: 12px; color: var(--muted); font-size: 14px; }

/* --- Layout: topics, article, on this page --- */
.hc-layout {
    display: grid;
    grid-template-columns: var(--nav) minmax(0, 1fr);
    max-width: 1320px;
    margin: 0 auto;
}
@media (min-width: 1200px) {
    .hc-layout { grid-template-columns: var(--nav) minmax(0, 1fr) 220px; }
}

.hc-nav {
    position: sticky;
    top: calc(var(--header) + env(safe-area-inset-top));
    align-self: start;
    height: calc(100vh - var(--header) - env(safe-area-inset-top));
    overflow-y: auto;
    padding: 24px 16px 40px max(var(--gutter), env(safe-area-inset-left));
    border-right: 1px solid var(--divider);
}
.hc-nav a {
    display: block;
    padding: 5px 10px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.4;
}
.hc-nav a:hover { color: var(--text); background: var(--surface); text-decoration: none; }
.hc-nav a[aria-current="page"] { color: var(--accent); background: rgba(var(--accent-rgb), 0.1); font-weight: 600; }
.hc-nav-home { margin-bottom: 8px; font-weight: 600; }
.hc-nav-group { padding-top: 22px; }
.hc-nav-title { padding: 0 10px 6px; color: var(--caption); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.hc-nav ul { list-style: none; display: grid; gap: 1px; }

.hc-main { min-width: 0; padding: 36px clamp(var(--gutter), 4vw, 56px) 48px; }
.hc-article, .hc-pager, .hc-footer { max-width: 740px; }

.hc-toc {
    display: none;
    position: sticky;
    top: calc(var(--header) + 36px);
    align-self: start;
    max-height: calc(100vh - var(--header) - 72px);
    overflow-y: auto;
    padding: 0 20px 0 0;
    font-size: 13px;
}
@media (min-width: 1200px) { .hc-toc { display: block; } }
.hc-toc p { color: var(--caption); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.hc-toc ul { list-style: none; border-left: 1px solid var(--divider); }
.hc-toc a { display: block; padding: 4px 0 4px 12px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); line-height: 1.4; }
.hc-toc a:hover { color: var(--text); text-decoration: none; }
.hc-toc a.active { color: var(--accent); border-left-color: var(--accent); }

/* --- Article typography --- */
.hc-eyebrow { color: var(--accent); font-weight: 600; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.hc-article h1 { font-size: clamp(28px, 4vw, 38px); line-height: 1.15; letter-spacing: -0.015em; margin-bottom: 18px; text-wrap: balance; }
.hc-article h2 { position: relative; font-size: 22px; line-height: 1.3; margin: 40px 0 12px; padding-top: 4px; text-wrap: balance; }
.hc-article h3 { position: relative; font-size: 17px; line-height: 1.35; margin: 28px 0 8px; }
.hc-article > p:first-of-type { font-size: 17px; color: var(--muted); }
.hc-article p, .hc-article ul, .hc-article ol, .hc-article table, .hc-article pre { margin-bottom: 14px; }
.hc-article ul, .hc-article ol { padding-left: 24px; }
.hc-article li { margin: 4px 0; }
.hc-article li > ul, .hc-article li > ol { margin: 4px 0 0; }
.hc-article li::marker { color: var(--caption); }
.hc-article ol > li::marker { color: var(--accent); font-weight: 600; }
.hc-article strong { font-weight: 600; color: #fff; }
.hc-article hr { border: none; border-top: 1px solid var(--divider); margin: 32px 0; }
.hc-anchor { position: absolute; left: -24px; padding-right: 6px; color: var(--caption); opacity: 0; font-weight: 400; }
.hc-article h2:hover .hc-anchor, .hc-article h3:hover .hc-anchor, .hc-anchor:focus-visible { opacity: 1; }
.hc-anchor:hover { color: var(--accent); text-decoration: none; }

code, kbd { font-family: Consolas, "Cascadia Mono", ui-monospace, monospace; font-size: 0.88em; }
code { background: var(--raised); padding: 1px 6px; border-radius: 5px; overflow-wrap: anywhere; }
pre { background: var(--surface); border: 1px solid var(--divider); border-radius: 10px; padding: 12px 14px; overflow-x: auto; }
pre code { background: none; padding: 0; }
kbd {
    display: inline-block;
    min-width: 1.7em;
    padding: 0 6px;
    border-radius: 6px;
    background: var(--control);
    border-bottom: 2px solid #23252b;
    color: var(--text);
    font-size: 0.82em;
    line-height: 1.6;
    text-align: center;
    white-space: nowrap;
}

/* Tables scroll on their own on narrow screens. */
.hc-article table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; font-size: 15px; }
.hc-article th, .hc-article td { padding: 9px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--divider); }
.hc-article th { color: var(--caption); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; border-bottom-color: var(--control); }
.hc-article tr:last-child td { border-bottom: none; }

/* --- Callouts (:::tip, :::note, :::warning) --- */
.callout {
    --tone: var(--accent);
    --tone-rgb: var(--accent-rgb);
    margin: 20px 0;
    padding: 14px 16px 2px;
    border-radius: 12px;
    border: 1px solid rgba(var(--tone-rgb), 0.28);
    border-left: 4px solid var(--tone);
    background: rgba(var(--tone-rgb), 0.07);
}
.callout-note { --tone: #8fa8ff; --tone-rgb: 143, 168, 255; }
.callout-warning { --tone: var(--warning); --tone-rgb: var(--warning-rgb); }
.callout-title { color: var(--tone); font-weight: 700; font-size: 14px; margin-bottom: 4px !important; }
.callout-body > :last-child { margin-bottom: 12px; }

/* --- Checklists ("- [ ] Step"): tickable, nothing stored (help.js) --- */
.hc-article ul.checklist { list-style: none; padding-left: 0; display: grid; gap: 8px; margin: 18px 0 8px; }
.checklist > li {
    position: relative;
    margin: 0;
    padding: 12px 14px 12px 48px;
    border-radius: 12px;
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}
.js .checklist > li { cursor: pointer; }
.js .checklist > li:hover { border-color: rgba(var(--accent-rgb), 0.35); }
.checklist input[type="checkbox"] {
    position: absolute;
    left: 14px;
    top: 13px;
    width: 22px;
    height: 22px;
    margin: 0;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 7px;
    border: 2px solid var(--control);
    background: var(--background);
    cursor: pointer;
}
.checklist input[type="checkbox"]:checked { border-color: var(--accent); background: var(--accent); }
.checklist input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 5px;
    top: 1px;
    width: 6px;
    height: 11px;
    border: solid var(--on-accent);
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg);
}
.checklist > li.done { background: rgba(var(--accent-rgb), 0.06); border-color: rgba(var(--accent-rgb), 0.22); }
.checklist > li.done > :not(input):not(ul):not(ol) { opacity: 0.6; }
.checklist > li > p { margin: 0; }
.checklist-status { display: flex; align-items: center; gap: 12px; margin: 0 0 22px; color: var(--caption); font-size: 13px; }
.checklist-status .bar { flex: 0 1 160px; height: 4px; border-radius: 2px; background: var(--control); overflow: hidden; }
.checklist-status .bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.2s ease; }
.checklist-status button { border: none; background: none; color: var(--muted); font: inherit; font-size: 13px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.checklist-status button:hover { color: var(--text); }

/* --- Overview cards (index) --- */
.hc-sections { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 28px; }
.hc-card { padding: 20px 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid rgba(255, 255, 255, 0.06); }
.hc-article .hc-card h2 { font-size: 17px; margin: 0 0 10px; padding: 0; }
.hc-article .hc-card ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.hc-card li { margin: 0; font-size: 15px; }

/* --- Previous / next --- */
.hc-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 44px; }
.hc-pager a { display: flex; flex-direction: column; gap: 2px; padding: 14px 18px; border-radius: 12px; border: 1px solid var(--divider); color: var(--text); }
.hc-pager a:hover { border-color: rgba(var(--accent-rgb), 0.45); text-decoration: none; color: var(--text); }
.hc-pager span { color: var(--caption); font-size: 13px; }
.hc-pager strong { color: var(--accent); font-weight: 600; }
.hc-next { grid-column: 2; text-align: right; }

.hc-footer { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--divider); color: var(--muted); font-size: 14px; }
.hc-footer strong { color: var(--text); font-weight: 600; }
.hc-footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-top: 10px; }
.hc-footer-links a { color: var(--caption); }

/* --- Phones and small windows: the topics slide in from the left --- */
.hc-scrim { display: none; }
@media (max-width: 899px) {
    .hc-layout { grid-template-columns: minmax(0, 1fr); }
    .hc-menu { display: inline-flex; }
    .hc-site { display: none; }
    .hc-search { flex: 1 1 auto; margin-left: auto; max-width: 380px; }
    .hc-search-key { display: none; }
    /* Results span the screen below the header, whatever the field's width.
       The header (sticky at the top, with a backdrop filter) may be their
       containing block or not: both start at the top of the screen. */
    .hc-results {
        position: fixed;
        top: calc(var(--header) + env(safe-area-inset-top) + 8px);
        left: max(var(--gutter), env(safe-area-inset-left));
        right: max(var(--gutter), env(safe-area-inset-right));
        width: auto;
        max-height: calc(100vh - var(--header) - env(safe-area-inset-top) - 24px);
        max-height: calc(100dvh - var(--header) - env(safe-area-inset-top) - 24px);
        overscroll-behavior: contain;
    }
    .js .hc-nav {
        position: fixed;
        z-index: 25;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(300px, 86vw);
        height: auto;
        align-self: stretch; /* a grid item: without it, as tall as its content and unscrollable */
        overscroll-behavior: contain;
        padding-top: calc(20px + env(safe-area-inset-top));
        background: var(--surface);
        border-right: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 20px 0 60px rgba(0, 0, 0, 0.5);
        transform: translateX(-105%);
        visibility: hidden;
        transition: transform 0.22s ease, visibility 0s linear 0.22s;
    }
    .js .nav-open .hc-nav { transform: none; visibility: visible; transition: transform 0.22s ease; }
    .js body.nav-open { overflow: hidden; } /* the page stays put behind the drawer */
    .js .nav-open .hc-scrim { display: block; position: fixed; inset: 0; z-index: 24; background: rgba(0, 0, 0, 0.5); }
    /* Without script the topics come first, above the article. */
    html:not(.js) .hc-nav { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--divider); }
    .hc-main { padding-top: 28px; }
}
@media (max-width: 560px) {
    .hc-brand span { display: none; }
    .hc-sections, .hc-pager { grid-template-columns: minmax(0, 1fr); }
    .hc-next { grid-column: 1; }
    .hc-anchor { display: none; }
}

/* ===========================================================================
   Visualizations (viz/*.html), drawn like the landing page's pictures
   =========================================================================== */
.viz {
    margin: 26px 0;
    padding: 22px;
    border-radius: var(--radius);
    background:
        radial-gradient(ellipse 420px 220px at 0 0, rgba(var(--accent-rgb), 0.08), transparent 70%),
        var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.06);
    -webkit-user-select: none;
    user-select: none;
}
.viz figcaption { margin-top: 18px; color: var(--muted); font-size: 14px; -webkit-user-select: text; user-select: text; }
.viz figcaption p { margin: 0; }
.viz figcaption strong { color: var(--text); }

/* --- audio-flow: where your voice and your sounds go --- */
.vf {
    --gap: 16px;
    --col: calc((100% - var(--gap)) / 4); /* the centre of the left column */
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gap);
}
.vf-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2px;
    padding: 12px 10px;
    border-radius: 12px;
    background: var(--raised);
    border: 1px solid rgba(255, 255, 255, 0.07);
    min-width: 0;
}
.vf-node .icon, .vf-node img { font-size: 26px; color: var(--muted); margin-bottom: 4px; }
.vf-node strong { font-size: 15px; line-height: 1.3; }
.vf-node > span:last-child { color: var(--muted); font-size: 12.5px; line-height: 1.35; }
.vf-board, .vf-cable { border-color: rgba(var(--accent-rgb), 0.45); box-shadow: 0 0 30px rgba(var(--accent-rgb), 0.1); }
.vf-cable .icon { color: var(--accent); }
.vf-apps { grid-column: 1; }
.vf-links { position: relative; grid-column: 1 / -1; height: 78px; }
.vf-links-bottom { height: 58px; }
.vf-line { position: absolute; border-radius: 2px; background: rgba(var(--accent-rgb), 0.28); overflow: hidden; }
.vf-line::after { content: ""; position: absolute; inset: 0; }
.vf-v { top: 0; bottom: 0; width: 3px; margin-left: -1.5px; }
.vf-v::after { background: repeating-linear-gradient(180deg, var(--accent) 0 8px, transparent 8px 18px); animation: vf-down 0.9s linear infinite; }
.vf-l { left: var(--col); }
.vf-r { left: calc(100% - var(--col)); }
.vf-h { top: 50%; height: 3px; margin-top: -1.5px; left: var(--col); right: var(--col); }
.vf-h::after { background: repeating-linear-gradient(90deg, var(--accent) 0 8px, transparent 8px 18px); animation: vf-left 0.9s linear infinite; }
.vf-label {
    position: absolute;
    padding: 1px 8px;
    border-radius: 999px;
    background: var(--background);
    border: 1px solid var(--divider);
    color: var(--accent);
    font-size: 12px;
    line-height: 1.5;
    white-space: nowrap;
}
.vf-label-mic { left: calc(var(--col) + 8px); top: 4px; }
.vf-label-others { left: 50%; top: calc(50% + 8px); transform: translateX(-50%); }
.vf-label-you { right: calc(var(--col) + 8px); top: 4px; }
.vf-label-out { left: calc(var(--col) + 8px); top: 50%; transform: translateY(-50%); }
@keyframes vf-down { to { background-position: 0 18px; } }
@keyframes vf-left { to { background-position: -18px 0; } }
@media (max-width: 480px) {
    .vf-label { font-size: 11px; padding: 1px 6px; }
    .vf-label-mic, .vf-label-you { top: 2px; }
    .vf-label-you { display: none; }
    .vf-node strong { font-size: 14px; }
}

/* --- discord-processing: voice processing on a sound --- */
.vd-toggle { display: inline-flex; padding: 3px; border-radius: 10px; background: var(--background); border: 1px solid var(--divider); margin-bottom: 18px; }
.vd-toggle button { border: none; border-radius: 7px; background: none; color: var(--muted); font: inherit; font-size: 13px; font-weight: 600; padding: 6px 12px; cursor: pointer; }
.vd-toggle button[aria-pressed="true"] { background: var(--control); color: var(--text); }
.vd-row { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 14px; }
.vd-stage { min-width: 0; }
.vd-cap { display: block; color: var(--caption); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 8px; }
.vd-wave { display: flex; align-items: center; gap: 3px; height: 64px; padding: 0 10px; border-radius: 10px; background: var(--raised); }
.vd-wave i {
    flex: 1;
    height: calc(var(--h) * 100%);
    min-height: 3px;
    border-radius: 2px;
    background: var(--accent);
    transform-origin: center;
    transition: transform 0.35s ease, background-color 0.35s ease, opacity 0.35s ease;
}
.vd-filter { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--divider); background: var(--background); text-align: center; min-width: 120px; }
.vd-filter .icon { color: var(--muted); font-size: 22px; }
.vd-filter strong { font-size: 14px; }
.vd-filter em { font-style: normal; font-size: 12px; line-height: 1.35; transition: color 0.3s ease; }
.vd-verdict { margin: 16px 0 0 !important; font-size: 14px; font-weight: 600; }
/* With noise suppression: most of the sound is taken for noise. */
.vd[data-mode="on"] .vd-out i { transform: scaleY(0.38); background: var(--warning); opacity: 0.8; }
.vd[data-mode="on"] .vd-out i.cut { transform: scaleY(0.04); opacity: 0.35; }
.vd[data-mode="on"] .vd-filter { border-color: rgba(var(--warning-rgb), 0.5); }
.vd[data-mode="on"] .vd-filter em, .vd[data-mode="on"] .vd-verdict { color: var(--warning); }
.vd[data-mode="off"] .vd-filter { border-color: rgba(var(--accent-rgb), 0.5); }
.vd[data-mode="off"] .vd-filter em, .vd[data-mode="off"] .vd-verdict { color: var(--accent); }
.vd[data-mode="on"] [data-when="off"], .vd[data-mode="off"] [data-when="on"] { display: none; }
@media (prefers-reduced-motion: no-preference) {
    .vd-in i { animation: vd-pulse 1.2s ease-in-out infinite alternate; animation-delay: calc(var(--d) * -0.1s); }
    @keyframes vd-pulse { from { scale: 1 0.82; } to { scale: 1 1; } }
}
@media (max-width: 600px) {
    .vd-row { grid-template-columns: minmax(0, 1fr); }
    .vd-filter { flex-direction: row; justify-content: center; gap: 8px; }
}

/* --- ptt-timeline: what Resound does while a sound plays --- */
.vt { --label: 128px; }
.vt-axis, .vt-lane { display: grid; grid-template-columns: var(--label) minmax(0, 1fr); align-items: center; gap: 12px; }
.vt-axis { margin-bottom: 6px; }
.vt-lane + .vt-lane { margin-top: 8px; }
.vt-name { color: var(--muted); font-size: 13px; line-height: 1.25; }
.vt-name b { display: block; color: var(--text); font-weight: 600; }
.vt-track { position: relative; height: 30px; border-radius: 8px; background: var(--raised); }
.vt-axis .vt-track { height: 18px; background: none; }
.vt-tick { position: absolute; top: 0; transform: translateX(-50%); color: var(--caption); font-size: 11px; font-weight: 600; white-space: nowrap; }
.vt-tick:first-child { transform: translateX(-30%); }
.vt-seg {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: var(--from);
    width: calc(var(--to) - var(--from));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 600;
    white-space: nowrap;
}
.vt-on { background: var(--accent); color: var(--on-accent); }
.vt-you { background: var(--berry); color: #fff; }
.vt-muted { background: repeating-linear-gradient(135deg, #4a4d57 0 6px, #3a3d46 6px 12px); color: var(--text); }
.vt-live { top: 13px; bottom: 13px; background: rgba(var(--accent-rgb), 0.45); }
.vt-paused { background: repeating-linear-gradient(135deg, rgba(var(--accent-rgb), 0.35) 0 6px, transparent 6px 12px); color: var(--accent); }
.vt-tracks { position: relative; }
.vt-head {
    position: absolute;
    top: -4px;
    bottom: -4px;
    left: calc(var(--label) + 12px);
    right: 0;
    pointer-events: none;
}
.vt-head::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 2px;
    margin-left: -1px;
    border-radius: 1px;
    background: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.6);
    opacity: 0.8;
}
@media (prefers-reduced-motion: no-preference) {
    .vt-head::before { animation: vt-sweep 9s linear infinite; }
    @keyframes vt-sweep { from { left: 0; } to { left: 100%; } }
}
@media (prefers-reduced-motion: reduce) { .vt-head { display: none; } }
@media (max-width: 520px) {
    .vt { --label: 84px; }
    .vt-name { font-size: 12px; }
    .vt-name span { display: none; }
    .vt-seg { font-size: 10.5px; }
    .vt-hide-narrow { color: transparent; }
    .vt-wide { display: none; }
}