:root {
  color-scheme: dark;
  --ink: #edf2f9;
  --muted: #aeb9c9;
  --line: #2d394a;
  --soft: #111824;
  --paper: #0b1018;
  --surface: #151e2b;
  --surface-raised: #1b2635;
  --accent: #43669f;
  --accent-dark: #a9c7f2;
  --accent-soft: rgba(67, 102, 159, .24);
  --green: #81d3aa;
  --amber: #e2b56b;
  --shadow: 0 22px 70px rgba(0, 0, 0, .42);
  --shadow-small: 0 10px 30px rgba(0, 0, 0, .28);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font: 16px/1.58 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; text-rendering: optimizeLegibility; }
a { color: var(--accent-dark); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
button, input, summary { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible, video:focus-visible { outline: 3px solid rgba(67, 102, 159, .38); outline-offset: 3px; }
[hidden] { display: none !important; }

.skip-link { position: fixed; top: -100px; left: 8px; z-index: 100; padding: 10px 14px; border-radius: 10px; background: var(--accent); color: #fff; }
.skip-link:focus { top: 8px; }
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid rgba(45, 57, 74, .92); background: rgba(11, 16, 24, .92); backdrop-filter: blur(18px); }
.nav { width: min(1240px, calc(100% - 36px)); min-height: 70px; margin: auto; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 780; text-decoration: none; white-space: nowrap; }
.brand-mark, .demo-logo { display: grid; place-items: center; width: 36px; height: 36px; flex: 0 0 auto; border-radius: 11px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 20px; font-size: 14px; }
.nav-links > a { color: var(--muted); text-decoration: none; }
.nav-links > a:hover { color: var(--ink); }
.language-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--soft); }
.language-switch a { min-width: 40px; padding: 4px 10px; border-radius: 999px; color: var(--muted); text-align: center; text-decoration: none; }
.language-switch [aria-current="page"] { background: var(--surface-raised); color: var(--ink); box-shadow: 0 1px 5px rgba(0, 0, 0, .28); }

main:focus { outline: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: auto; }
.section { padding: 88px 0; }
.section.soft { background: var(--soft); }
.eyebrow { margin: 0 0 14px; color: var(--accent-dark); font-size: 12px; font-weight: 820; letter-spacing: .105em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.13; letter-spacing: -.026em; }
h1 { margin: 0; max-width: 720px; font-size: clamp(42px, 5.3vw, 68px); }
h2 { margin: 0 0 16px; font-size: clamp(30px, 3.5vw, 45px); }
h3 { margin: 0 0 9px; font-size: 20px; }
.section-head { max-width: 780px; margin-bottom: 36px; }
.section-head > p:last-child { margin: 0; color: var(--muted); font-size: 18px; }

.hero { position: relative; padding: 86px 0 74px; background: radial-gradient(circle at 78% 6%, rgba(67, 102, 159, .28), transparent 33%), linear-gradient(180deg, #101827 0%, var(--paper) 88%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .46; pointer-events: none; background-image: linear-gradient(rgba(169,199,242,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(169,199,242,.055) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to bottom, #000, transparent 70%); }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(360px, .82fr) minmax(600px, 1.18fr); gap: 58px; align-items: center; }
.lede { max-width: 650px; margin: 24px 0 0; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 19px; border: 1px solid var(--accent); border-radius: 12px; background: var(--accent); color: #fff; font-weight: 760; text-decoration: none; transition: background-color 160ms ease, transform 160ms ease; }
.button:hover { background: var(--accent-dark); transform: translateY(-1px); }
.button.secondary { background: rgba(21,30,43,.78); color: var(--accent-dark); }
.button.secondary:hover { background: var(--accent-soft); }
.trust-list { display: grid; gap: 8px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.trust-list li::before { content: "✓"; margin-right: 8px; color: var(--green); font-weight: 900; }

.compatibility-notice { border-top: 1px solid #554429; border-bottom: 1px solid #554429; background: #211c16; }
.compatibility-notice.available { border-color: #27513f; background: #14241f; }
.compatibility-notice-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; padding-top: 28px; padding-bottom: 28px; }
.compatibility-notice .eyebrow { margin-bottom: 7px; color: var(--amber); }
.compatibility-notice.available .eyebrow { color: var(--green); }
.compatibility-notice h2 { margin: 0 0 7px; font-size: clamp(23px, 2.4vw, 31px); }
.compatibility-notice p:last-child { max-width: 820px; margin: 0; color: #d8cbb7; }
.compatibility-notice a { flex: 0 0 auto; font-weight: 750; }

.extension-demo { position: relative; min-height: 650px; }
.demo-browser { position: absolute; inset: 25px 70px 18px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: var(--shadow); }
.demo-browser-bar { height: 42px; display: flex; align-items: center; gap: 7px; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--surface-raised); color: #9ca9ba; font-size: 11px; }
.demo-browser-bar i { width: 9px; height: 9px; border-radius: 50%; background: #657286; }
.demo-browser-bar i:first-child { background: #e77a72; }
.demo-browser-bar i:nth-child(2) { background: #e6bd5d; }
.demo-browser-bar i:nth-child(3) { background: #71bd80; }
.demo-browser-bar span { margin-left: auto; margin-right: auto; }
.demo-reading { min-height: 608px; display: grid; grid-template-columns: minmax(0, 1fr) 210px; background: #0f1621; }
.demo-reading-main { padding: 58px 34px 60px; }
.demo-kicker { color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.demo-reading h2 { margin-top: 9px; font-size: 25px; }
.demo-reading p { color: #d7dfeb; font: 17px/1.78 ui-serif, Georgia, serif; }
.demo-reading p b { display: inline-block; width: 22px; color: var(--accent); }
.demo-reading mark { padding: 2px 1px; color: inherit; background: rgba(184, 148, 30, .5); box-shadow: 0 0 0 2px rgba(247, 211, 76, .14); }
.demo-reading mark.off { background: transparent; box-shadow: none; }
.demo-reading-main.range-selected p { border-radius: 6px; background: rgba(67,102,159,.09); box-shadow: 0 0 0 5px rgba(67,102,159,.09); }
.demo-verse-tools { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 0 20px; }
.demo-verse-tools button { min-height: 30px; padding: 4px 8px; border: 0; border-radius: 6px; background: var(--accent); color: #fff; font-size: 10px; }
.demo-notes { padding: 22px 12px; border-left: 1px solid var(--line); background: var(--surface-raised); transition: opacity 180ms ease, transform 180ms ease; }
.demo-notes-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.demo-notes-head > span { display: grid; width: 24px; height: 24px; place-items: center; border-radius: 999px; background: #0f1621; color: var(--muted); font-size: 10px; font-weight: 800; }
.demo-note-card { margin-top: 12px; padding: 12px; border: 1px solid #40516a; border-radius: 10px; background: #101824; }
.demo-note-card p { margin: 0; font: 11px/1.48 ui-sans-serif, sans-serif; }
.demo-note-card p + p { margin-top: 8px; }
.demo-note-card .demo-note-quote { color: #dce6f4; font-weight: 760; }
.demo-note-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px; }
.demo-note-tags span { padding: 3px 7px; border-radius: 999px; background: #24344d; color: #d5e3f7; font-size: 9px; }
.demo-note-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-top: 10px; }
.demo-note-actions span { display: grid; min-height: 27px; place-items: center; border: 1px solid #55729c; border-radius: 6px; color: #dce8f9; font-size: 9px; font-weight: 760; }
.demo-note-actions span:last-child { border-color: #8c5060; color: #f2cdd5; }
.demo-notes.hidden { opacity: 0; transform: translateX(14px); }
.demo-notes.pulse { animation: note-pulse 650ms ease-out; }

.demo-popup { position: absolute; z-index: 2; top: 0; right: 0; width: 350px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: 0 28px 74px rgba(0,0,0,.46); font-size: 12px; }
.demo-popup-head { display: flex; align-items: center; gap: 10px; padding: 16px 17px 12px; }
.demo-popup-head > div { display: grid; }
.demo-popup-head strong { font-size: 15px; }
.demo-popup small { display: block; color: var(--muted); line-height: 1.35; }
.demo-master, .demo-row { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 14px; cursor: pointer; }
.demo-master { margin: 0 13px 12px; padding: 12px; border-radius: 12px; background: var(--accent-soft); }
.demo-master > span:first-child, .demo-row > span:first-child { min-width: 0; }
.demo-master input, .demo-row input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.switch { position: relative; display: inline-block; width: 38px; height: 22px; flex: 0 0 auto; border-radius: 999px; background: #4c596b; transition: background-color 160ms ease; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #f4f7fb; box-shadow: 0 1px 4px rgba(0,0,0,.35); transition: transform 160ms ease; }
input:checked + .switch, .switch.on { background: var(--accent); }
input:checked + .switch::after, .switch.on::after { transform: translateX(16px); }
.demo-master:has(input:focus-visible), .demo-row:has(input:focus-visible) { outline: 3px solid rgba(67,102,159,.35); outline-offset: -2px; }
.demo-status { display: flex; gap: 9px; margin: 0 13px 12px; padding: 10px 11px; border: 1px solid var(--line); border-radius: 11px; }
.demo-status i { width: 8px; height: 8px; margin-top: 4px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); }
.demo-status > span { display: grid; gap: 2px; }
.demo-status small.flash { animation: status-flash 420ms ease-out; }
.demo-actions { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 6px; padding: 0 13px 13px; }
.demo-actions button { min-height: 38px; padding: 6px; border: 1px solid #52627a; border-radius: 8px; background: var(--surface-raised); color: var(--accent-dark); font-size: 10px; font-weight: 730; cursor: pointer; }
.demo-actions button:hover { border-color: var(--accent); background: var(--accent-soft); }
.demo-popup details { border-top: 1px solid var(--line); }
.demo-popup summary { padding: 11px 14px; font-weight: 750; cursor: pointer; }
.demo-row { padding: 10px 14px; border-top: 1px solid var(--line); }
.demo-row strong { display: block; }
.demo-popup[data-disabled="true"] .demo-status, .demo-popup[data-disabled="true"] .demo-actions, .demo-popup[data-disabled="true"] details { opacity: .42; pointer-events: none; }

@keyframes note-pulse { 50% { background: #24344a; box-shadow: inset 0 0 0 2px rgba(109,149,207,.52); } }
@keyframes status-flash { 50% { color: var(--accent); transform: translateX(3px); } }

.release-heading { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: end; }
.release-heading > div { max-width: 760px; }
.release-heading h2 { text-wrap: balance; }
.release-heading > div > p:last-child { max-width: 68ch; margin: 0; color: var(--muted); font-size: 18px; text-wrap: pretty; }
.release-heading > a { max-width: 270px; padding-bottom: 5px; font-weight: 760; }
.release-version { margin: 0 0 11px; color: var(--accent-dark); font-size: 15px; font-weight: 800; }
.release-walkthroughs { margin-top: 48px; }
.release-walkthrough { display: grid; grid-template-columns: minmax(300px, .8fr) minmax(0, 1.2fr); gap: 42px; align-items: center; padding: 40px 0; border-top: 1px solid var(--line); }
.release-copy h3 { max-width: 22ch; margin: 13px 0 22px; font-size: 26px; text-wrap: balance; }
.release-label { display: inline-flex; min-height: 29px; align-items: center; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-size: 12px; font-weight: 800; }
.release-steps { margin: 0; padding-left: 22px; }
.release-steps li { padding-left: 5px; color: var(--muted); }
.release-steps li + li { margin-top: 13px; }
.release-steps li::marker { color: var(--accent-dark); font-weight: 850; }
.release-steps strong, .release-steps span { display: block; }
.release-steps strong { color: var(--ink); }
.release-shot { display: block; overflow: hidden; border: 1px solid #40516a; border-radius: 14px; background: var(--paper); text-decoration: none; }
.release-shot img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.release-shot span { display: block; padding: 10px 13px; color: var(--accent-dark); font-size: 13px; font-weight: 730; }
.release-shot:hover span { text-decoration: underline; text-underline-offset: 3px; }
.release-details { display: grid; grid-template-columns: 1fr 1fr; margin-top: 12px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.release-details article { min-width: 0; padding: 30px 30px 30px 0; }
.release-details article + article { padding-right: 0; padding-left: 30px; border-left: 1px solid var(--line); }
.release-details h3 { font-size: 22px; }
.release-details ul, .release-details ol { margin: 15px 0 0; padding-left: 21px; color: var(--muted); }
.release-details li + li { margin-top: 9px; }

.use-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.use-card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); box-shadow: 0 6px 22px rgba(0,0,0,.16); }
.use-number { display: block; margin-bottom: 24px; color: var(--accent); font-size: 12px; font-weight: 850; letter-spacing: .12em; }
.use-card p { min-height: 76px; margin: 0 0 18px; color: var(--muted); }
.use-card > strong { display: block; color: var(--ink); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.use-card > span:last-child { color: var(--muted); font-size: 14px; }

.comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.comparison-card { padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.comparison-card h3 { margin-top: 18px; }
.comparison-card p { margin: 0; color: var(--muted); }
.comparison-stage { height: 210px; overflow: hidden; border: 1px solid var(--line); border-radius: 13px; background: #101722; }
.header-stage { overflow-y: scroll; }
.mini-header { position: sticky; top: 0; padding: 13px 16px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 750; box-shadow: 0 5px 16px rgba(25,47,83,.2); }
.mini-copy { display: grid; gap: 17px; padding: 24px 20px 160px; }
.mini-copy i { height: 9px; border-radius: 99px; background: #445269; }
.mini-copy i:nth-child(2), .mini-copy i:nth-child(4) { width: 72%; }
.width-stage { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: center; padding: 20px; }
.width-stage .column { position: relative; height: 154px; border-radius: 9px; background: var(--surface-raised); box-shadow: inset 0 0 0 1px #40506a; }
.width-stage .column::before, .width-stage .column::after { content: ""; position: absolute; left: 50%; width: 48%; height: 8px; border-radius: 99px; background: #526079; transform: translateX(-50%); }
.width-stage .column::before { top: 45px; }
.width-stage .column::after { top: 65px; }
.width-stage .before { width: 67%; justify-self: center; }
.width-stage .after { width: 98%; border: 2px solid var(--accent); }
.width-stage span { display: block; padding: 12px; color: var(--muted); font-size: 11px; text-align: center; }
.table-stage { padding: 20px; }
.table-stage table { width: 100%; border-collapse: collapse; background: var(--surface-raised); font-size: 12px; }
.table-stage th, .table-stage td { padding: 11px; text-align: left; }
.table-stage th { background: #28364a; }
.table-stage th:last-child { background: var(--accent); color: #fff; }
.table-stage td:first-child { color: #9aa7b8; }
.table-stage td:last-child { border: 1px solid #617b9f; }
.table-stage tr:nth-child(3) td:last-child { background: rgba(67,102,159,.1); }
.player-stage { position: relative; background: linear-gradient(135deg, #a8c6e5, #637fa5); }
.player-picture { display: grid; height: 100%; place-items: center; color: #fff; font-size: 18px; font-weight: 760; text-shadow: 0 1px 4px rgba(0,0,0,.25); }
.player-controls { position: absolute; inset: auto 0 0; display: flex; align-items: center; gap: 12px; padding: 15px; color: #fff; background: rgba(10,18,30,.18); }
.player-controls i { height: 4px; flex: 1; border-radius: 99px; background: rgba(255,255,255,.76); }
.player-controls b { font-size: 16px; }

.media-frame { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #101724; box-shadow: var(--shadow); }
.media-frame video { display: block; width: 100%; height: auto; aspect-ratio: 16/9; background: #101724; }
.media-caption { padding: 11px 15px; border-top: 1px solid #293344; background: #151e2c; color: #c6d1e2; font-size: 13px; }
.chapters { margin-top: 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.chapters summary { padding: 15px 18px; font-weight: 750; cursor: pointer; }
.chapter-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; padding: 0 14px 14px; }
.chapter-grid button { min-height: 42px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 9px; background: var(--soft); color: var(--ink); font-size: 13px; text-align: left; cursor: pointer; }
.chapter-grid button:hover { border-color: var(--accent); background: var(--accent-soft); }
.feature-tools { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.feature-tools label { font-weight: 750; }
.feature-tools input { width: min(430px,100%); min-height: 45px; padding: 9px 13px; border: 1px solid #52627a; border-radius: 10px; background: var(--surface); color: var(--ink); }
.filter-empty { padding: 22px; border: 1px dashed #aebaca; border-radius: 12px; color: var(--muted); }
.feature-group { margin-top: 36px; }
.feature-group h3 { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 11px; border-bottom: 2px solid var(--ink); }
.feature-group h3 span { color: var(--muted); font-size: 13px; font-weight: 500; letter-spacing: 0; }
.feature-table { width: 100%; border-collapse: collapse; }
.feature-table th, .feature-table td { padding: 15px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.feature-table th { color: var(--muted); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.feature-table td:first-child { width: 30%; font-weight: 740; }
.feature-table td:nth-child(2) { color: var(--muted); }
.feature-table td:last-child { width: 90px; text-align: right; }
.state { display: inline-flex; min-height: 27px; align-items: center; padding: 3px 9px; border-radius: 999px; background: #17392d; color: var(--green); font-size: 12px; font-weight: 800; white-space: nowrap; }
.state.off { background: #3a2d1d; color: var(--amber); }
.search-callout { margin-top: 34px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.search-callout strong { font-size: 18px; }
.search-callout p { margin: 5px 0 0; color: var(--muted); }
.search-callout a { flex: 0 0 auto; font-weight: 750; }

.install-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 30px; align-items: start; }
.install-steps { counter-reset: install; margin: 0; padding: 0; list-style: none; }
.install-steps li { position: relative; min-height: 70px; padding: 0 0 25px 54px; }
.install-steps li::before { counter-increment: install; content: counter(install); position: absolute; left: 0; top: -3px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 850; }
.install-steps li:not(:last-child)::after { content: ""; position: absolute; left: 17px; top: 39px; bottom: 5px; width: 2px; background: #35445a; }
.install-steps strong, .install-steps span { display: block; }
.install-steps span { margin-top: 4px; color: var(--muted); }
.install-preview { padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-small); }
.extensions-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-bottom: 22px; }
.extensions-toolbar label { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; }
.install-preview > button { min-height: 40px; padding: 7px 13px; border: 1px solid var(--accent); border-radius: 9px; background: var(--surface-raised); color: var(--accent-dark); font-weight: 740; }
.extension-card { display: flex; align-items: center; gap: 12px; margin: 18px 0; padding: 18px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-raised); }
.extension-card > div { display: grid; margin-right: auto; }
.extension-card small { color: var(--green); }
.install-download { width: 100%; }
.install-note { margin: 28px 0 0; padding: 15px 17px; border: 1px solid #554429; border-radius: 12px; background: #2e261b; color: #ead7b6; }
.install-note code { overflow-wrap: anywhere; font-size: 12px; }

.privacy-grid, .research-grid, .mobile-platform-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.mobile-platform-grid .card { display: flex; align-items: flex-start; flex-direction: column; gap: 13px; }
.mobile-platform-grid .card h3 { margin: 0; }
.mobile-install-steps { margin: 1px 0 3px; padding-left: 22px; color: var(--muted); }
.mobile-install-steps li + li { margin-top: 8px; }
.mobile-download { width: 100%; margin-top: auto; text-align: center; }
.mobile-build-note { display: block; width: 100%; color: var(--muted); font-size: 12px; text-align: center; }
.mobile-boundary { margin-top: 28px; }
.mobile-boundary p { margin: 10px 0 0; color: var(--muted); }
.card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); }
.card p { margin: 0; color: var(--muted); }
.card ul { margin: 14px 0 0; padding-left: 20px; }
.card li + li { margin-top: 7px; }
.decision { border-top: 4px solid var(--green); }
.decision.no { border-top-color: #a66d1c; }
.source-heading { margin-top: 34px; }
.source-list { margin: 16px 0 0; padding-left: 20px; }
.source-list li + li { margin-top: 7px; }

.faq-layout { display: grid; grid-template-columns: minmax(260px,.72fr) minmax(0,1.28fr); gap: 64px; align-items: start; }
.faq-layout .section-head { position: sticky; top: 104px; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 19px 34px 19px 2px; font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 16px; color: var(--accent); font-size: 22px; font-weight: 500; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: 0 38px 22px 2px; color: var(--muted); }

.site-footer { padding: 40px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; }
.footer-grid p { max-width: 760px; margin: 0; }

@media (max-width: 1120px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .extension-demo { width: min(850px,100%); min-height: 640px; }
  .demo-browser { right: 120px; }
}

@media (max-width: 900px) {
  .nav-links > a { display: none; }
  .section { padding: 70px 0; }
  .use-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .chapter-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .install-layout, .faq-layout { grid-template-columns: 1fr; gap: 34px; }
  .faq-layout .section-head { position: static; }
  .release-heading, .release-walkthrough { grid-template-columns: 1fr; }
  .release-heading { align-items: start; }
  .release-heading > a { max-width: none; }
  .release-walkthrough { gap: 25px; }
  .release-details { grid-template-columns: 1fr; }
  .release-details article { padding: 26px 0; }
  .release-details article + article { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .compatibility-notice-inner { align-items: flex-start; flex-direction: column; gap: 14px; }
}

@media (max-width: 700px) {
  .container, .nav { width: min(100% - 26px, 1180px); }
  .hero { padding-top: 58px; }
  h1 { font-size: clamp(38px, 12vw, 52px); }
  .extension-demo { min-height: 860px; }
  .demo-browser { inset: 0 0 300px; }
  .demo-reading { grid-template-columns: 1fr; }
  .demo-reading-main { padding: 42px 24px; }
  .demo-notes { display: none; }
  .demo-popup { top: auto; bottom: 0; left: 12px; right: 12px; width: auto; }
  .use-grid, .comparison-grid, .privacy-grid, .research-grid, .mobile-platform-grid { grid-template-columns: 1fr; }
  .use-card p { min-height: 0; }
  .feature-tools, .search-callout, .footer-grid { align-items: stretch; flex-direction: column; }
  .feature-table thead { display: none; }
  .feature-table, .feature-table tbody, .feature-table tr, .feature-table td { display: block; width: 100%; }
  .feature-table tr { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .feature-table td { padding: 4px 2px; border: 0; }
  .feature-table td:last-child { width: auto; text-align: left; }
  .feature-group h3 { align-items: flex-start; gap: 16px; }
  .chapter-grid { grid-template-columns: 1fr; }
  .extensions-toolbar { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 430px) {
  .demo-actions { grid-template-columns: 1fr; }
  .extension-demo { min-height: 950px; }
  .demo-browser { bottom: 410px; }
  .hero-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; }
}