/* JBrowser website: shared tokens, header, footer, buttons and the changelog / download pages.
   Colours come from the app (the logo gradient #5b8cff → #8a5cff → #ff5c9d). */

:root {
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", "Cascadia Mono", Consolas, ui-monospace, "SFMono-Regular", Menlo, monospace;
  --brand-1: #5b8cff; --brand-2: #8a5cff; --brand-3: #ff5c9d;
  --brand: linear-gradient(120deg, var(--brand-1), var(--brand-2) 55%, var(--brand-3));
  --radius: 14px;
  --radius-small: 9px;
  --wrap: 1180px;
  --topbar-h: 64px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

:root, :root[data-theme="light"] {
  --bg: #f7f7fb;
  --bg-2: #eeeef6;
  --surface: #ffffff;
  --surface-2: #f4f4f9;
  --text: #15151c;
  --text-2: #464657;
  --text-3: #6d6d80;
  --border: rgba(24, 24, 48, .1);
  --border-2: rgba(24, 24, 48, .16);
  --accent: #5a4ff0;
  --accent-soft: rgba(90, 79, 240, .1);
  --accent-text: #ffffff;
  --link: #4a44d8;
  --code-bg: #f0f0f7;
  --code-text: #2b2b3a;
  --shadow: 0 1px 2px rgba(20, 20, 50, .06), 0 8px 24px rgba(20, 20, 50, .08);
  --shadow-big: 0 30px 80px rgba(40, 30, 110, .22), 0 8px 24px rgba(20, 20, 50, .12);
  --topbar-bg: rgba(247, 247, 251, .78);
  --good: #1f9d63; --warn: #b86e00; --bad: #d64545;
}

:root[data-theme="dark"] {
  --bg: #0d0d12;
  --bg-2: #13131a;
  --surface: #17171f;
  --surface-2: #1e1e28;
  --text: #f1f1f6;
  --text-2: #bdbdcc;
  --text-3: #8b8b9e;
  --border: rgba(255, 255, 255, .09);
  --border-2: rgba(255, 255, 255, .15);
  --accent: #8f86ff;
  --accent-soft: rgba(143, 134, 255, .14);
  --accent-text: #0d0d12;
  --link: #a49dff;
  --code-bg: #191922;
  --code-text: #e4e4ee;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-big: 0 30px 90px rgba(0, 0, 0, .6), 0 10px 30px rgba(60, 40, 160, .25);
  --topbar-bg: rgba(13, 13, 18, .72);
  --good: #5dd39e; --warn: #ffb74d; --bad: #ff6b6b;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--topbar-h) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
code, kbd, pre { font-family: var(--mono); font-size: .9em; }
code { background: var(--code-bg); color: var(--code-text); padding: .12em .38em; border-radius: 6px; }
kbd {
  display: inline-block; min-width: 1.6em; padding: .05em .45em; border: 1px solid var(--border-2);
  border-bottom-width: 2px; border-radius: 6px; background: var(--surface); color: var(--text-2);
  font-size: .8em; line-height: 1.5; text-align: center; white-space: nowrap;
}
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; letter-spacing: -.01em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--text-3); }
.center { text-align: center; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--surface); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }

/* ---------------------------------------------------------------- header */
.topbar {
  position: sticky; top: 0; z-index: 50; height: var(--topbar-h);
  background: var(--topbar-bg); backdrop-filter: saturate(1.6) blur(16px); -webkit-backdrop-filter: saturate(1.6) blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 28px; height: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font: 600 18px var(--font-display); }
.brand:hover { text-decoration: none; }
.brand em { font-style: normal; font-weight: 500; color: var(--text-3); margin-left: 2px; }
.topnav { display: flex; gap: 4px; margin-right: auto; }
.topnav a { color: var(--text-2); padding: 6px 12px; border-radius: 8px; font-size: 15px; }
.topnav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border: 0; border-radius: 10px;
  background: transparent; color: var(--text-2); cursor: pointer;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .i-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: block; }

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 42px; padding: 0 18px;
  border-radius: 11px; border: 1px solid transparent; font: 600 15px var(--font); cursor: pointer; white-space: nowrap;
  transition: transform .15s var(--ease), box-shadow .2s var(--ease), background .2s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 19px; height: 19px; fill: currentColor; }
.btn code { background: rgba(255, 255, 255, .18); color: inherit; font-size: .82em; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 6px 20px rgba(110, 80, 255, .35); }
.btn-primary:hover { box-shadow: 0 10px 28px rgba(110, 80, 255, .45); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border-2); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-small { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 10px; box-shadow: none; }
.btn-large { height: 52px; padding: 0 24px; font-size: 16px; border-radius: 13px; }

/* ---------------------------------------------------------------- footer */
.footer { margin-top: 96px; border-top: 1px solid var(--border); background: var(--bg-2); }
.footer-inner { display: flex; gap: 48px; justify-content: space-between; flex-wrap: wrap; max-width: var(--wrap); margin: 0 auto; padding: 48px 24px 24px; }
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand p { margin: 2px 0 0; color: var(--text-3); font-size: 14px; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-cols div { display: flex; flex-direction: column; gap: 8px; }
.footer-cols p { margin: 0 0 4px; font-weight: 600; font-size: 14px; color: var(--text); }
.footer-cols a { color: var(--text-2); font-size: 14px; }
.legal { max-width: var(--wrap); margin: 0 auto; padding: 16px 24px 36px; color: var(--text-3); font-size: 13px; }

/* ---------------------------------------------------------------- generic pages */
.page { padding-top: 56px; }
.page.narrow { max-width: 820px; }
.page-head { margin-bottom: 40px; }
.page-head h1 { font-size: clamp(32px, 4.4vw, 48px); margin: 6px 0 14px; }
.page-head .lead, .lead { font-size: 19px; color: var(--text-2); max-width: 64ch; }
.page-head.center .lead { margin-left: auto; margin-right: auto; }
.kicker { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; }
.page-intro { color: var(--text-2); max-width: 72ch; }
.page-intro p { margin: 0 0 8px; }
.page-links { font-size: 14px; color: var(--text-3); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.cta.center { justify-content: center; }
.fineprint { color: var(--text-3); font-size: 14px; margin: 0; }

.badge {
  display: inline-block; vertical-align: middle; margin-left: 10px; padding: 2px 9px; border-radius: 999px;
  font: 600 12px var(--font); letter-spacing: .02em; background: var(--accent-soft); color: var(--accent);
}
.badge-changed { background: rgba(255, 159, 67, .15); color: var(--warn); }
.badge-removed { background: rgba(214, 69, 69, .12); color: var(--bad); }

/* numbered steps (home and download) */
.steps { list-style: none; padding: 0; margin: 36px 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.steps li { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 22px 20px; box-shadow: var(--shadow); }
.steps li > span {
  display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 10px;
  background: var(--brand); color: #fff; font-weight: 700;
}
.steps h3 { margin: 14px 0 6px; font-size: 18px; }
.steps p { margin: 0; color: var(--text-2); font-size: 15px; }
.steps.compact { grid-template-columns: 1fr; }
.download-logo { filter: drop-shadow(0 12px 30px rgba(120, 90, 255, .35)); }

/* plain text pages (site/pages/*.md: code signing policy, privacy) */
.text-prose { font-size: 16px; line-height: 1.7; }
.text-prose h2 { font-size: 23px; margin: 38px 0 10px; }
.text-prose h3 { font-size: 18px; margin: 26px 0 8px; }
.text-prose p, .text-prose ul, .text-prose ol { margin: 0 0 14px; }
.text-prose ul, .text-prose ol { padding-left: 22px; }
.text-prose li { margin: 4px 0; }
.text-prose table { width: 100%; border-collapse: collapse; margin: 6px 0 18px; font-size: 15px; }
.text-prose th, .text-prose td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid var(--border); }
.text-prose th { color: var(--text-2); font-weight: 600; }
.text-prose .note { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }

/* a one-line command with a Copy button (home and download) */
.code-copy {
  display: flex; align-items: center; gap: 8px; margin-top: 10px; padding: 6px 6px 6px 12px;
  background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px; text-align: left;
}
.code-copy code { background: none; padding: 0; flex: 1; overflow-x: auto; white-space: nowrap; font-size: 13px; }
.copy {
  border: 1px solid var(--border-2); background: var(--surface); color: var(--text-2); border-radius: 7px;
  font: 600 12px var(--font); padding: 5px 10px; cursor: pointer;
}
.copy.done { color: var(--good); }

/* the install window (every Download button) and the download page share _install_steps.html */
.install-dialog {
  width: min(520px, calc(100vw - 32px)); max-height: calc(100vh - 32px); padding: 0; overflow: auto;
  border: 1px solid var(--border-2); border-radius: 22px; background: var(--surface); color: var(--text);
  box-shadow: var(--shadow-big);
}
.install-dialog::backdrop { background: rgba(8, 8, 16, .55); backdrop-filter: blur(4px); }
.install-dialog[open] { animation: install-in .22s var(--ease); }
@keyframes install-in { from { opacity: 0; transform: translateY(10px) scale(.98); } }
@media (prefers-reduced-motion: reduce) { .install-dialog[open] { animation: none; } }
.install-body { position: relative; padding: 30px 32px 24px; text-align: center; }
.dialog-close {
  position: absolute; top: 14px; right: 14px; width: 36px; height: 36px; display: grid; place-items: center;
  border: 0; border-radius: 10px; background: transparent; color: var(--text-2); cursor: pointer;
}
.dialog-close:hover { background: var(--surface-2); color: var(--text); }
.dialog-close svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.install-head img { filter: drop-shadow(0 10px 24px rgba(120, 90, 255, .35)); }
.install-head h2 { margin: 12px 0 2px; font-size: 26px; }
.install-head p { margin: 0 0 20px; color: var(--text-3); font-size: 15px; }
.install-main { width: 100%; justify-content: center; font-size: 17px; padding-top: 15px; padding-bottom: 15px; }
.install-main svg { width: 18px; height: 18px; fill: currentColor; }
.install-sub { margin: 10px 0 0; color: var(--text-3); font-size: 13.5px; }
/* "Then install it": after the download starts in the window; always shown on the download page */
.after-download { display: none; margin-top: 20px; padding: 16px 18px; border-radius: 14px; background: var(--surface-2); text-align: left; }
.install-dialog.started .after-download, .install-page .after-download { display: block; }
.install-dialog.started .after-download { animation: install-in .25s var(--ease); }
.after-title { margin: 0 0 10px; font-weight: 700; font-size: 15.5px; }
.install-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; text-align: left; }
.install-steps li { display: flex; gap: 12px; align-items: flex-start; }
.install-steps .n {
  flex: none; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 8px;
  background: var(--brand); color: #fff; font-weight: 700; font-size: 13px; margin-top: 1px;
}
.install-steps p { margin: 0; color: var(--text-2); font-size: 14.5px; line-height: 1.55; }
.install-steps b { color: var(--text); }
.install-steps .why { display: block; color: var(--text-3); font-size: 13.5px; }
.install-alt { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); text-align: left; font-size: 14.5px; }
.install-alt summary { cursor: pointer; color: var(--link); font-weight: 600; width: fit-content; margin: 0 auto; }
.install-alt[open] summary { margin-bottom: 12px; }
.install-alt .install-steps { margin-bottom: 10px; }
.install-cmd { align-items: flex-start; }
.install-cmd code {           /* shown in full, never cut off: people should see exactly what they paste */
  min-width: 0; font-size: 13px; line-height: 1.55; padding-top: 2px;
  white-space: normal; overflow-wrap: anywhere;
}
.install-note { margin: 10px 0 0; color: var(--text-3); font-size: 13.5px; line-height: 1.55; }
.install-notwin { margin: 14px 0 0; color: var(--warn); font-size: 14.5px; }
.install-page {
  max-width: 560px; margin: 8px auto 48px; padding: 28px 30px 24px; border: 1px solid var(--border);
  border-radius: 20px; background: var(--surface); box-shadow: var(--shadow); text-align: center;
}
@media (max-width: 560px) {
  .install-body, .install-page { padding: 24px 18px 20px; }
}

/* ---------------------------------------------------------------- changelog */
.changelog-grid { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 48px; align-items: start; }
.release-nav { position: sticky; top: calc(var(--topbar-h) + 24px); max-height: calc(100vh - 120px); overflow: auto; }
.release-nav p { margin: 0 0 10px; font-weight: 600; font-size: 13px; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; }
.release-nav ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border); }
.release-nav li { display: flex; flex-direction: column; padding: 6px 0 6px 16px; margin-left: -1px; border-left: 2px solid transparent; }
.release-nav li.on { border-left-color: var(--accent); }
.release-nav a { color: var(--text); font-weight: 600; }
.release-nav span { color: var(--text-3); font-size: 13px; }
.release { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 32px; margin-bottom: 24px; box-shadow: var(--shadow); }
.release header { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; border-bottom: 1px solid var(--border); padding-bottom: 14px; margin-bottom: 8px; }
.release h2 { margin: 0; font-size: 28px; }
.release h2 a { color: var(--text); }
.release .date { color: var(--text-3); }
.release-links { display: flex; flex-wrap: wrap; gap: 14px; margin-left: auto; font-size: 14px; }
.release .prose h4 { font-size: 17px; margin: 22px 0 8px; color: var(--text); }
.release .prose ul { padding-left: 22px; }
.release .prose li { margin: 6px 0; color: var(--text-2); }
.release .prose li strong { color: var(--text); }

/* ---------------------------------------------------------------- 404 */
.big-404 {
  margin: 20px 0 0; font: 800 clamp(96px, 18vw, 180px)/1 var(--font-display);
  background: var(--brand); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------------------------------------------------------------- small screens */
@media (max-width: 900px) {
  .topnav { display: none; }
  .changelog-grid { grid-template-columns: 1fr; }
  .release-nav { display: none; }
  .steps { grid-template-columns: 1fr; }
  .release { padding: 22px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}