@charset "UTF-8";
/* loupeaudio.com. The front page is web/index.html; /download/, /roadmap/ and
   /updates/ are generated by Scripts/build-release-site.py. */
:root {
  color-scheme:light;
  --paper:#fafaf9;
  --ink:#1f1f24;
  --muted:#66666e;
  --faint:#9a9aa1;
  --line:#e6e6e8;
  --accent:#6961cf;
  --card:#f1f1f2;
  --white:#fff;
  --ease:cubic-bezier(.2,.7,.2,1);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  font-synthesis:none;
}

* {
  box-sizing:border-box;
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:88px;
}

body {
  margin:0;
  background:var(--paper);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a {
  color:inherit;
  text-decoration:none;
}

img {
  max-width:100%;
  display:block;
}

a:focus-visible,button:focus-visible {
  outline:3px solid var(--accent);
  outline-offset:4px;
  border-radius:6px;
}

.wrap {
  width:min(1120px,calc(100% - 64px));
  margin-inline:auto;
}

.visually-hidden {
  position:absolute;
  width:1px;
  height:1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
}

.skip-link {
  position:fixed;
  left:16px;
  top:-100px;
  background:var(--white);
  padding:12px;
  z-index:20;
}

.skip-link:focus {
  top:16px;
}

.desktop-break {
  display:inline;
}

/* Header: stays at the top, and takes on a frosted backing once the page
   has scrolled under it. */
.site-header {
  position:sticky;
  top:0;
  z-index:10;
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
}

.site-header.scrolled {
  background:rgba(250,250,249,.78);
  -webkit-backdrop-filter:saturate(1.8) blur(18px);
  backdrop-filter:saturate(1.8) blur(18px);
  border-bottom-color:var(--line);
}

.header-row {
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.brand {
  display:flex;
  align-items:center;
  gap:9px;
  font-weight:650;
  font-size:21px;
  letter-spacing:-.6px;
}

.brand img {
  border-radius:7px;
}

.site-header nav {
  display:flex;
  align-items:center;
  gap:28px;
  font-size:14px;
  font-weight:500;
}

.site-header nav a:not(.nav-button) {
  color:var(--muted);
  transition:color .2s;
}

.site-header nav a:not(.nav-button):hover,.site-header nav a[aria-current] {
  color:var(--ink);
}

.nav-button {
  padding:7px 14px;
  border-radius:999px;
  background:var(--ink);
  color:var(--white);
  display:flex;
  gap:10px;
  align-items:center;
  transition:background .2s,transform .2s var(--ease);
}

.nav-button:hover {
  background:#3b3a44;
}

/* Buttons */
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  min-height:46px;
  padding:11px 22px;
  border-radius:999px;
  background:var(--ink);
  border:1px solid var(--ink);
  color:var(--white);
  font-size:15px;
  font-weight:550;
  transition:background .2s,transform .2s var(--ease),box-shadow .2s;
}

.button:hover {
  background:#3b3a44;
  box-shadow:0 6px 18px rgba(31,31,36,.16);
}

.button-quiet {
  background:transparent;
  color:var(--ink);
  border-color:#d6d6db;
}

.button-quiet:hover {
  background:var(--white);
  box-shadow:0 4px 14px rgba(31,31,36,.06);
}

/* Front page */
.hero {
  text-align:center;
  padding-top:64px;
}

.announce {
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:5px 14px 5px 5px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--white);
  font-size:13px;
  font-weight:500;
  color:var(--muted);
  transition:border-color .2s,color .2s;
}

.announce:hover {
  border-color:#cfcfd4;
  color:var(--ink);
}

.announce-tag {
  padding:2px 9px;
  border-radius:999px;
  background:var(--ink);
  color:var(--white);
  font-size:12px;
  font-weight:600;
}

.hero h1 {
  font-size:clamp(40px,6vw,72px);
  line-height:1.04;
  letter-spacing:-.045em;
  font-weight:600;
  margin:26px 0 20px;
}

.hero-copy {
  font-size:19px;
  line-height:1.55;
  color:var(--muted);
  margin:0 auto 30px;
  max-width:760px;
}

.hero-actions {
  display:flex;
  gap:10px;
  justify-content:center;
  flex-wrap:wrap;
}

.hero-note {
  font-size:13px;
  color:var(--faint);
  margin:16px 0 0;
}

/* The screens: one picture at a time, chosen with the tabs under it and never
   changed on their own. The frame rises into place as it scrolls into view;
   --tilt goes from 1 to 0 in site.js. */
.product-shot {
  margin:56px auto 0;
  perspective:1600px;
}

.shots {
  position:relative;
  aspect-ratio:3024 / 1722;
  border-radius:1.59% / 2.79%;
  overflow:hidden;
  background:#1d1d2c;
  box-shadow:0 1px 1px rgba(20,18,40,.06),0 24px 60px -12px rgba(20,18,40,.28),0 0 0 1px rgba(20,18,40,.08);
  transform-origin:50% 0;
  transform:rotateX(calc(var(--tilt,0) * 22deg)) scale(calc(1 - var(--tilt,0) * .08));
  will-change:transform;
}

.shot {
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:0;
  transition:opacity .45s var(--ease);
}

.shot.is-active {
  opacity:1;
}

.shot-tabs {
  display:flex;
  width:max-content;
  max-width:100%;
  margin:28px auto 0;
  padding:4px;
  gap:2px;
  border-radius:999px;
  background:var(--card);
  overflow-x:auto;
  scrollbar-width:none;
}

.shot-tabs button {
  flex:none;
  padding:7px 16px;
  border:0;
  border-radius:999px;
  background:transparent;
  color:var(--muted);
  font-size:14px;
  font-weight:550;
  cursor:pointer;
  transition:background .2s,color .2s,box-shadow .2s;
}

.shot-tabs button:hover {
  color:var(--ink);
}

.shot-tabs button[aria-selected="true"] {
  background:var(--white);
  color:var(--ink);
  box-shadow:0 1px 3px rgba(20,18,40,.12);
}

.shot-caption {
  margin:14px auto 0;
  text-align:center;
  font-size:14px;
  color:var(--muted);
}

.section-head {
  max-width:620px;
  margin-bottom:44px;
}

h2 {
  font-size:clamp(30px,3.6vw,42px);
  line-height:1.12;
  letter-spacing:-.035em;
  font-weight:600;
  margin:0 0 12px;
}

.section-head p {
  font-size:17px;
  color:var(--muted);
  margin:0;
}

.features {
  padding-top:128px;
}

.feature-list {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);
}

.feature {
  padding:30px 28px 34px 0;
  border-bottom:1px solid var(--line);
}

.feature:not(:nth-child(4n+1)) {
  padding-left:28px;
  border-left:1px solid var(--line);
}

.feature-icon {
  width:26px;
  height:26px;
  fill:none;
  stroke:var(--ink);
  stroke-width:1.5;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.feature-icon .fill {
  fill:var(--paper);
}

.feature h3 {
  font-size:16px;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.35;
  margin:18px 0 8px;
}

.feature p {
  font-size:14.5px;
  line-height:1.6;
  color:var(--muted);
  margin:0;
}

.progress {
  padding-top:112px;
}

.progress-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}

.progress-card {
  display:flex;
  flex-direction:column;
  padding:28px 30px 26px;
  border-radius:20px;
  background:var(--card);
  transition:background .25s,transform .35s var(--ease),box-shadow .35s var(--ease);
}

.progress-card:hover {
  background:#ececee;
  box-shadow:0 14px 34px -14px rgba(20,18,40,.18);
}

.card-kicker {
  font-size:13px;
  font-weight:550;
  color:var(--muted);
}

.progress-card h3 {
  font-size:22px;
  font-weight:600;
  letter-spacing:-.02em;
  margin:6px 0 2px;
}

.progress-card p {
  color:var(--muted);
  margin:10px 0 0;
}

.card-date {
  font-size:13px;
  color:var(--faint);
}

.card-notes,.card-roadmap {
  list-style:none;
  padding:0;
  margin:18px 0 22px;
  font-size:14.5px;
  line-height:1.55;
}

.card-notes li {
  position:relative;
  padding-left:16px;
  margin-bottom:8px;
  color:#44444b;
}

.card-notes li::before {
  content:"";
  position:absolute;
  left:2px;
  top:.68em;
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--faint);
}

.card-roadmap li {
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 0;
  border-bottom:1px solid #e2e2e5;
}

.card-roadmap li:last-child {
  border-bottom:0;
}

.card-roadmap .mark {
  width:14px;
  height:14px;
  flex:none;
  color:var(--accent);
}

.card-roadmap small {
  margin-left:auto;
  font-size:12px;
  color:var(--faint);
  white-space:nowrap;
}

.card-link {
  margin-top:auto;
  padding-top:18px;
  font-size:14px;
  font-weight:600;
}

.closing {
  text-align:center;
  padding:128px 0 120px;
}

.closing img {
  margin:0 auto 22px;
}

.closing p {
  color:var(--muted);
  font-size:17px;
  max-width:460px;
  margin:0 auto 28px;
}

.site-footer {
  border-top:1px solid var(--line);
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
}

.site-footer .brand {
  font-size:18px;
}

.site-footer>span {
  font-size:13px;
  color:var(--faint);
}

.footer-links {
  display:flex;
  gap:22px;
  font-size:13px;
  color:var(--muted);
}

.footer-links a:hover {
  color:var(--ink);
}

/* Download, roadmap and changelog: a centred heading, then rows with a label
   on the left and the content on the right. */
.doc-page {
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.doc-main {
  flex:1;
  width:min(880px,calc(100% - 64px));
  padding:64px 0 96px;
}

.doc-main-wide {
  width:min(1120px,calc(100% - 64px));
}

.doc-hero {
  text-align:center;
}

.doc-hero h1 {
  font-size:clamp(38px,5vw,56px);
  line-height:1.06;
  letter-spacing:-.04em;
  font-weight:600;
  margin:0 0 12px;
}

.doc-hero p {
  font-size:17px;
  color:var(--muted);
  margin:0;
}

.doc-actions {
  display:flex;
  gap:10px;
  justify-content:center;
  flex-wrap:wrap;
  margin-top:30px;
}

.doc-meta {
  text-align:center;
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
  margin:14px 0 0;
}

.doc-rows {
  margin-top:72px;
  border-top:1px solid var(--line);
}

.doc-row {
  display:grid;
  grid-template-columns:190px minmax(0,1fr);
  gap:40px;
  padding:34px 0;
  border-bottom:1px solid var(--line);
}

.doc-label {
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:4px;
  margin:0;
  font-size:14px;
  font-weight:550;
  letter-spacing:0;
  color:var(--muted);
}

h2.doc-label {
  align-self:start;
  line-height:1.6;
}

.doc-content p {
  margin:0 0 12px;
  line-height:1.6;
}

.doc-content p:last-child {
  margin-bottom:0;
}

.doc-links {
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  font-size:15px;
  font-weight:600;
}

.doc-links a:hover,.doc-footnote a:hover {
  color:var(--accent);
}

/* Terminal commands and checksums on a release page. */
.doc-content pre {
  margin:0 0 12px;
  padding:12px 14px;
  border-radius:10px;
  background:var(--card);
  font:12.5px/1.55 ui-monospace,"SF Mono",Menlo,monospace;
  white-space:pre-wrap;
  word-break:break-all;
}

.checksum {
  font:12px/1.5 ui-monospace,"SF Mono",Menlo,monospace;
  color:var(--muted);
  word-break:break-all;
}

.doc-footnote {
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
  margin:28px 0 0;
}

.doc-footnote a {
  text-decoration:underline;
  text-underline-offset:3px;
}

/* Roadmap: one column per stage, left to right as in roadmap.md. */
.board {
  display:grid;
  grid-template-columns:repeat(var(--columns),minmax(0,1fr));
  gap:16px;
  align-items:start;
  margin-top:64px;
}

.board-column {
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:14px;
  border-radius:18px;
  background:var(--card);
}

.board-head {
  display:flex;
  align-items:center;
  gap:8px;
  margin:2px 4px 4px;
  font-size:14px;
  font-weight:600;
  letter-spacing:0;
  line-height:1.4;
}

.board-head .mark {
  width:15px;
  height:15px;
  flex:none;
  color:var(--accent);
}

.board-head .count {
  margin-left:auto;
  font-size:12px;
  font-weight:550;
  color:var(--muted);
}

.board-card {
  padding:16px 16px 17px;
  border-radius:12px;
  background:var(--white);
  box-shadow:0 0 0 1px rgba(0,0,0,.05),0 1px 2px rgba(0,0,0,.04);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}

.board-card:hover {
  box-shadow:0 0 0 1px rgba(0,0,0,.06),0 10px 24px -10px rgba(20,18,40,.2);
}

.board-card h3 {
  font-size:15px;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.35;
  margin:0 0 6px;
}

.board-card p {
  margin:0;
  font-size:14px;
  line-height:1.55;
  color:var(--muted);
}

/* Changelog. The version and date stay in view beside their notes, with a
   line that fills as the notes are read. */
.update .doc-label {
  position:sticky;
  top:92px;
  align-self:start;
}

.update .version {
  font-size:22px;
  font-weight:600;
  letter-spacing:-.02em;
  color:var(--ink);
}

.update .date {
  font-size:13px;
  font-weight:500;
  color:var(--faint);
}

.read {
  display:block;
  width:72px;
  height:2px;
  margin-top:12px;
  border-radius:2px;
  background:var(--line);
  overflow:hidden;
}

.read i {
  display:block;
  height:100%;
  width:100%;
  background:var(--ink);
  transform-origin:0 50%;
  transform:scaleX(var(--read,0));
}

.notes h3,.notes h4 {
  font-size:15px;
  font-weight:600;
  margin:30px 0 10px;
}

.notes > :first-child {
  margin-top:0;
}

/* Sections of the notes: a small tinted tag, then the list. */
.notes .kind {
  margin:34px 0 14px;
  font-size:12.5px;
  font-weight:650;
  letter-spacing:.02em;
}

.notes > .kind:first-child {
  margin-top:2px;
}

.notes .kind span {
  display:inline-block;
  padding:4px 11px 4px;
  border-radius:7px;
  line-height:1.3;
}

.kind-new span {
  background:#e3f3ea;
  color:#1d7a4e;
}

.kind-improved span {
  background:#e6ecfb;
  color:#2c56c4;
}

.kind-fixed span {
  background:#fbeadf;
  color:#a8501c;
}

.kind-other span {
  background:var(--card);
  color:var(--ink);
}

.notes ul {
  list-style:none;
  margin:0 0 12px;
  padding:0;
}

.notes li {
  position:relative;
  margin:0 0 10px;
  padding-left:22px;
  line-height:1.65;
}

.notes li::before {
  content:"";
  position:absolute;
  left:2px;
  top:.82em;
  width:9px;
  height:1.5px;
  border-radius:1px;
  background:var(--faint);
}

.notes code {
  font-size:.9em;
  padding:1px 5px;
  border-radius:5px;
  background:var(--card);
}

/* Things arrive as they scroll into view. Without the script nothing is
   hidden: `.js` is set by the page before it paints. */
.js [data-reveal] {
  opacity:0;
  transform:translateY(18px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:calc(var(--i,0) * 70ms);
}

.js [data-reveal].shown {
  opacity:1;
  transform:none;
}

/* A large display: the column and the picture grow rather than sitting in a
   narrow strip down the middle of the screen. */
@media(min-width:1680px) {
  .wrap,.doc-main-wide {
    width:min(1360px,calc(100% - 64px));
  }
  .hero h1 {
    font-size:80px;
  }
}

@media(max-width:1000px) {
  .feature-list {
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .feature:not(:nth-child(4n+1)) {
    padding-left:0;
    border-left:0;
  }
  .feature:nth-child(even) {
    padding-left:28px;
    border-left:1px solid var(--line);
  }
  .board {
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media(max-width:760px) {
  .wrap,.doc-main,.doc-main-wide {
    width:calc(100% - 32px);
  }
  .site-header nav {
    gap:14px;
  }
  .site-header nav a:not(.nav-button) {
    display:none;
  }
  .desktop-break {
    display:none;
  }
  .hero {
    padding-top:44px;
  }
  .hero-copy {
    font-size:17px;
  }
  /* All five screens fit across a phone without scrolling the tabs. */
  .shot-tabs button {
    padding:6px 11px;
    font-size:13px;
  }
  .product-shot {
    margin-top:40px;
  }
  .features,.progress {
    padding-top:80px;
  }
  .feature-list,.progress-grid,.board {
    grid-template-columns:1fr;
  }
  .feature,.feature:nth-child(even) {
    padding:26px 0 28px;
    border-left:0;
  }
  .doc-main {
    padding-top:44px;
  }
  .doc-row {
    grid-template-columns:1fr;
    gap:14px;
    padding:28px 0;
  }
  .update .doc-label {
    position:static;
    flex-direction:row;
    align-items:baseline;
    gap:12px;
  }
  .read {
    display:none;
  }
  .doc-rows {
    margin-top:52px;
  }
  .board {
    margin-top:44px;
  }
  .closing {
    padding:96px 0 88px;
  }
  .site-footer {
    flex-wrap:wrap;
    padding-block:24px;
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto;
  }
  *,*::before,*::after {
    transition:none!important;
    animation:none!important;
  }
  .js [data-reveal] {
    opacity:1;
    transform:none;
  }
  .shots {
    transform:none;
  }
}