/* K-Shell website. Dark, rounded cards, real screenshots on warm "wallpaper" panels. */
@font-face { font-family: 'Satoshi'; src: url('../fonts/satoshi-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Satoshi'; src: url('../fonts/satoshi-500.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Satoshi'; src: url('../fonts/satoshi-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --bg: #0d0d0d;
  --card: #161616;
  --card-2: #1c1c1c;
  --line: rgba(255, 255, 255, 0.07);
  --line-2: rgba(255, 255, 255, 0.12);
  --text: #f1efeb;
  --text-2: #b4b0a8;
  --muted: #858178;
  --accent: #e0703c;
  --btn: #ecebe8;
  --sans: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, Roboto, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  --radius: 24px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--text); text-decoration: underline; text-decoration-color: rgba(255, 255, 255, 0.3); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
h3 { font-size: 19px; font-weight: 500; letter-spacing: -0.01em; }
code { font: 0.86em var(--mono); background: rgba(255, 255, 255, 0.07); border: 1px solid var(--line); padding: 0.08em 0.38em; border-radius: 6px; }
kbd { font: 13px var(--mono); background: var(--card-2); border: 1px solid var(--line-2); border-radius: 6px; padding: 1px 7px; white-space: nowrap; }
i { font-style: normal; color: var(--text); font-weight: 500; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.center { text-align: center; }
.wrap { width: min(1080px, 100% - 48px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 48px); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: var(--text); color: var(--bg); padding: 6px 10px; border-radius: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* header */
.top { position: sticky; top: 0; z-index: 30; background: var(--bg); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; height: 62px; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 17px; }
.brand.small { font-size: 15px; gap: 8px; }
.nav { display: flex; gap: 24px; margin-left: auto; font-size: 15px; }
.nav a { color: var(--text-2); text-decoration: none; }
.nav a:hover { color: var(--text); }
.stars { color: var(--muted); margin-left: 5px; font-size: 13px; }
.stars:not(:empty)::before { content: '★ '; }
.btn-small { font-size: 14px; font-weight: 500; color: var(--text); text-decoration: none; background: var(--card-2); border: 1px solid var(--line-2); padding: 7px 14px; border-radius: 10px; }
.btn-small:hover { background: #242424; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 9px; background: var(--btn); color: #121212; font-weight: 500; font-size: 17px; padding: 13px 24px; border-radius: 12px; text-decoration: none; transition: background 0.15s; }
.btn:hover { background: #fff; }
.os-icon:empty { display: none; }
.os-icon svg { display: block; }

/* hero */
.hero { padding: 72px 0 32px; }
.mark { width: 84px; height: 84px; margin: 0 0 28px; }
.mark svg { display: block; }
.mark .cursor { animation: blink 1.15s steps(1) infinite; }
@keyframes blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0; } }
.hero h1 { font-size: clamp(40px, 5.4vw, 58px); letter-spacing: -0.03em; line-height: 1.05; }
.sub { margin: 14px 0 0; max-width: 620px; font-size: 20px; color: var(--text-2); }
/* platforms and areas as a plain line of text, not chips */
.pills { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-wrap: wrap; font-size: 15px; color: var(--muted); }
.pills li + li::before { content: '·'; margin: 0 9px; color: var(--line-2); }
.cta { margin-top: 30px; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-dark { background: var(--card-2); color: var(--text); border: 1px solid var(--line-2); }
.btn-dark:hover { background: #262626; }
.cta-meta { margin-top: 12px; font-size: 14px; color: var(--muted); min-height: 1.4em; }

/* app icon tile (used in the closing section) */
.icon-tile { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 18px; display: grid; place-items: center; background: var(--card-2); border: 1px solid var(--line-2); }
.icon-tile img { border-radius: 12px; }

/* hero: the demo video in a plain frame */
.hero-wall { margin-top: 52px; border-radius: 10px; overflow: hidden; border: 1px solid var(--line-2); background: #000; }
.hero-wall video { display: block; width: 100%; height: auto; }
.caption { margin-top: 12px; font-size: 14px; color: var(--muted); }

/* screenshots in the feature cards sit on a plain panel (one flat colour, no gradient) */
.stack .wall { border-radius: 18px; padding: clamp(14px, 3.4vw, 40px) clamp(14px, 4vw, 56px); overflow: hidden; background: #232120; }
.stack .wall img { display: block; width: 100%; height: auto; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.08); }

/* stacked cards (each sticks while the next one slides over it) */
.stack { padding: 80px 0 40px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 3.2vw, 36px); }
.stack .card { position: sticky; top: 92px; margin-bottom: 48px; box-shadow: 0 -18px 40px -24px rgba(0, 0, 0, 0.9); }
.stack .card:nth-child(2) { top: 108px; }
.stack .card:nth-child(3) { top: 124px; }
.card-text { max-width: 640px; margin-bottom: 26px; }
.card-text p { margin-top: 12px; color: var(--text-2); }
.pill-code { font-size: 0.82em; padding: 0.05em 0.35em; border-radius: 6px; background: rgba(255, 255, 255, 0.08); border-color: var(--line-2); }

/* generic blocks */
.block { padding: 80px 0; }
.block > .wrap > h2.center { margin-bottom: 34px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
.tile h3 { margin-bottom: 8px; }
.tile p { color: var(--text-2); font-size: 15.5px; }

.card.plain { padding: clamp(24px, 4vw, 48px); }
.sec { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 40px; align-items: start; }
.sec h2 { margin-bottom: 12px; }
.sec-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.sec-list li { background: var(--card-2); border: 1px solid var(--line); border-radius: 14px; padding: 15px 18px; color: var(--text-2); font-size: 15.5px; }
.sec-list b { color: var(--text); font-weight: 500; }

/* download */
.release { margin: -18px 0 8px; }
.plat { margin-top: 28px; }
.plat h3 { display: flex; align-items: center; gap: 10px; font-size: 19px; }
.plat-ico svg { display: block; color: var(--text-2); }
.you { display: none; font-size: 12px; font-weight: 500; color: var(--accent); border: 1px solid rgba(224, 112, 60, 0.4); border-radius: 999px; padding: 1px 9px; }
.plat.mine .you { display: inline-block; }
.assets { margin-top: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.asset { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 18px; align-items: center; padding: 13px 18px; color: var(--text); text-decoration: none; border-top: 1px solid var(--line); font-size: 15px; }
.asset:first-child { border-top: 0; }
.asset:hover { background: var(--card-2); }
.asset .file { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font: 13px var(--mono); }
.asset .file b { font: 500 15px var(--sans); color: var(--text); margin-right: 10px; }
.asset .sz { color: var(--muted); font-size: 14px; }
.asset .dl { color: var(--accent); font-weight: 500; font-size: 14px; }
.empty-assets { padding: 14px 18px; color: var(--muted); font-size: 15px; }

.note { margin-top: 30px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; font-size: 15px; color: var(--text-2); }
.note p + p { margin-top: 10px; }
.note b { color: var(--text); font-weight: 500; }
.sub { font-weight: 500; }
h3.sub { margin: 38px 0 6px; font-size: 19px; }
.code { position: relative; margin-top: 12px; }
.code pre { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 84px 16px 18px; font: 14px/1.75 var(--mono); overflow-x: auto; color: var(--text); }
.copy-btn { position: absolute; top: 10px; right: 10px; font: 500 12px var(--sans); color: var(--text); background: var(--card-2); border: 1px solid var(--line-2); border-radius: 8px; padding: 4px 10px; cursor: pointer; }
.copy-btn:hover { background: #262626; }

.account { margin-top: 36px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.acc-out { display: flex; flex-direction: column; gap: 12px; }
.acc-out p { color: var(--text-2); font-size: 15px; }
.acc-out b { color: var(--text); font-weight: 500; }
.acc-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.btn-google { display: inline-flex; align-items: center; gap: 9px; height: 38px; padding: 0 16px; border-radius: 10px; border: 0; background: var(--btn); color: #1f1f1f; font: 500 15px var(--sans); cursor: pointer; }
.btn-google:hover { background: #fff; }
.btn-google:disabled { opacity: 0.6; cursor: progress; }
.consent { display: inline-flex; align-items: center; gap: 7px; font-size: 15px; color: var(--text-2); cursor: pointer; }
.consent input { accent-color: var(--accent); width: 16px; height: 16px; }
.acc-in { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 15px; }
.acc-in img { border-radius: 50%; }
.acc-who { margin-right: auto; }
.link-btn { background: none; border: 0; padding: 0; font: 15px var(--sans); color: var(--text-2); cursor: pointer; }
.link-btn:hover { color: var(--text); text-decoration: underline; }
.link-btn.danger { color: #e8826a; }
.toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); background: var(--btn); color: #121212; padding: 10px 16px; border-radius: 10px; font-size: 15px; z-index: 50; }

/* shortcuts */
.table-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 6px 22px; overflow-x: auto; }
.keys { width: 100%; border-collapse: collapse; font-size: 15px; }
.keys th { text-align: left; font-size: 13px; font-weight: 500; color: var(--muted); padding: 14px 16px 10px 0; border-bottom: 1px solid var(--line); }
.keys td { padding: 12px 16px 12px 0; border-bottom: 1px solid var(--line); color: var(--text-2); vertical-align: top; }
.keys tr:last-child td { border-bottom: 0; }
.keys td:nth-child(1), .keys td:nth-child(2) { white-space: nowrap; width: 1%; }

/* faq */
.faq { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 4px 22px; }
.faq details + details { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 17px 34px 17px 0; position: relative; font-weight: 500; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 13px; font-size: 22px; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: '–'; }
.faq details p { padding: 0 0 18px; color: var(--text-2); }

/* closing */
.closing { padding: 90px 0 100px; text-align: center; }
.closing h2 { margin-bottom: 28px; }
.closing .about { max-width: 520px; margin: 26px auto 0; }

.foot { border-top: 1px solid var(--line); padding: 26px 0 36px; font-size: 14px; }
.foot-in { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.foot nav { margin-left: auto; display: flex; gap: 20px; flex-wrap: wrap; }
.foot nav a { color: var(--text-2); text-decoration: none; }
.foot nav a:hover { color: var(--text); }

/* privacy page */
.doc { padding: 64px 0 96px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: 44px; letter-spacing: -0.03em; }
.doc h2 { font-size: 22px; margin: 38px 0 10px; letter-spacing: -0.01em; }
.doc p, .doc li { color: var(--text-2); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 20px; display: grid; gap: 6px; }
.doc table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 15px; }
.doc th { text-align: left; font-size: 13px; font-weight: 500; color: var(--muted); padding: 0 12px 8px 0; border-bottom: 1px solid var(--line); }
.doc td { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); color: var(--text-2); vertical-align: top; }
.doc table + p { margin-top: 16px; }

/* responsive */
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .sec { grid-template-columns: 1fr; gap: 24px; }
  .stack .card { position: static; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap, .narrow { width: calc(100% - 32px); }
  .nav { display: none; }
  .btn-small { margin-left: auto; }
  .hero { padding-top: 56px; }
  .mark, .mark svg { width: 112px; height: 112px; }
  .sub { font-size: 18px; }
  .hero::after { width: 100%; }
  .grid { grid-template-columns: 1fr; }
  .wall { border-radius: 14px; }
  .asset { grid-template-columns: minmax(0, 1fr) auto; }
  .asset .sz { display: none; }
  .keys th:nth-child(2), .keys td:nth-child(2) { display: none; }
  .foot nav { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .btn:hover { transform: none; }
  .mark .cursor { animation: none; }
}

/* /download page */
.dl-page { padding: 90px 0 100px; min-height: 70vh; }
.dl-page h1 { font-size: clamp(30px, 4.6vw, 44px); letter-spacing: -0.03em; }
.dl-page > .wrap > p.muted { margin-top: 12px; }
.dl-fallback { margin-top: 18px; color: var(--text-2); }
.dl-all { margin-top: 44px; }
.dl-all h2 { font-size: 22px; }
.dl-back { margin-top: 40px; }

/* first-launch instructions */
.launch { margin-top: 30px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.launch h3 { font-size: 18px; margin-bottom: 10px; }
.launch p + p { margin-top: 8px; }
.launch q, .launch .quote { color: var(--text); }
.launch q { quotes: "\201C" "\201D"; }
.steps { margin: 0 0 12px; padding-left: 22px; display: grid; gap: 8px; color: var(--text-2); }
.steps li::marker { color: var(--accent); font-weight: 700; }
.steps b { color: var(--text); font-weight: 500; }
.dl-launch .launch { margin-top: 28px; }