/* Lumi Music landing — monochrome OLED, soft duotone icons, glass pills. */
:root {
  --bg: #000;
  --surface: #0c0c0d;
  --surface-2: #131315;
  --surface-3: #1a1a1d;
  --line: rgba(255, 255, 255, .1);
  --line-2: rgba(255, 255, 255, .18);
  --text: #f5f5f5;
  --muted: #a3a3aa;
  --ac: #fff;
  --ko: var(--surface-3);
  --radius: 28px;
  --radius-sm: 18px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Outfit", "Inter", system-ui, sans-serif;
  --max: 1180px;
  --gutter: clamp(18px, 4vw, 32px);
  --gap: clamp(14px, 1.6vw, 20px);
  --section: clamp(72px, 10vw, 132px);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16px/1.55 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; overflow-x: clip; -webkit-tap-highlight-color: transparent; }
button, a, summary { touch-action: manipulation; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 2px solid #fff; outline-offset: 3px; border-radius: 10px; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: #fff; color: #000; padding: 10px 16px; border-radius: 12px; font-weight: 600; transition: top .2s; }
.skip:focus { top: 12px; }

/* Lumi duotone icons: .b body, .s soft, .a accent, .k knock-out, *s = stroke variants */
.lui { width: 1em; height: 1em; display: block; flex: none; overflow: visible; }
.lui .b { fill: currentColor; }
.lui .s { fill: currentColor; opacity: .38; }
.lui .a { fill: var(--ac); }
.lui .bs, .lui .ss, .lui .as { fill: none; stroke: currentColor; stroke-width: 2.3; stroke-linecap: round; stroke-linejoin: round; }
.lui .ss { opacity: .38; }
.lui .as { stroke: var(--ac); }
.lui .k { fill: var(--ko); }
.lui .as.k { fill: none; stroke: var(--ko); }

/* language: both versions are in the markup, the inactive one is hidden */
html[lang="en"] [data-l="ru"], html[lang="ru"] [data-l="en"] { display: none !important; }
.lang { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px 0 12px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255, 255, 255, .05); font: 600 13px/1 var(--font); letter-spacing: .08em; transition: background .25s, border-color .25s, transform .3s var(--ease); }
.lang:hover { background: rgba(255, 255, 255, .11); border-color: rgba(255, 255, 255, .3); }
.lang:active { transform: scale(.95); }
.lang__ico { display: grid; font-size: 18px; color: var(--muted); transition: transform .7s var(--ease), color .25s; }
.lang:hover .lang__ico { color: var(--text); }
html[lang="ru"] .lang__ico { transform: rotate(360deg); }
.lang__roll { display: block; height: 1em; line-height: 1em; width: 2.1em; overflow: hidden; }
.lang__roll b { display: block; height: 1em; line-height: 1em; font-weight: 600; transition: transform .55s var(--ease), opacity .4s; }
.lang__roll b:first-child { opacity: 1; } .lang__roll b:last-child { opacity: 0; }
html[lang="ru"] .lang__roll b { transform: translateY(-100%); }
html[lang="ru"] .lang__roll b:first-child { opacity: 0; } html[lang="ru"] .lang__roll b:last-child { opacity: 1; }
/* text swaps with a short fade when the language is switched by hand */
html.lang-swap [data-l] { animation: langin .5s var(--ease) both; }
@keyframes langin { from { opacity: 0; } to { opacity: 1; } }

/* atmosphere */
.atmos { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.atmos i { position: absolute; border-radius: 50%; opacity: .5; }
.atmos__a { width: 60vw; height: 60vw; left: -18vw; top: -22vw; background: radial-gradient(circle, rgba(255, 255, 255, .13), transparent 62%); }
.atmos__b { width: 55vw; height: 55vw; right: -20vw; top: 22vh; background: radial-gradient(circle, rgba(255, 255, 255, .07), transparent 62%); }

/* header */
.top { position: sticky; top: 0; z-index: 50; padding: 12px var(--gutter) 0; }
.top__dock { max-width: var(--max); margin: 0 auto; height: 58px; display: flex; align-items: center; gap: 18px; padding: 0 10px 0 20px; border: 1px solid var(--line); border-radius: 999px; background: rgba(12, 12, 13, .62); -webkit-backdrop-filter: blur(22px) saturate(1.4); backdrop-filter: blur(22px) saturate(1.4); transition: background .3s, border-color .3s; }
.top.is-stuck .top__dock { background: rgba(10, 10, 11, .86); border-color: var(--line-2); }
.top__brand { display: flex; align-items: center; gap: 10px; font: 700 18px/1 var(--display); letter-spacing: -.01em; }
.top__nav { margin-left: auto; display: flex; gap: 2px; }
.top__nav + .lang { margin-left: 4px; }
.top__nav a { padding: 8px 12px; border-radius: 999px; color: var(--muted); font-size: 14px; font-weight: 500; transition: color .2s, background .2s; }
.top__nav a:hover { color: var(--text); background: rgba(255, 255, 255, .07); }
.top__toggle { display: none; width: 44px; height: 44px; border-radius: 50%; position: relative; margin-left: auto; }
.top__toggle i { position: absolute; left: 14px; right: 14px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s var(--ease), top .3s var(--ease); }
.top__toggle i:first-child { top: 18px; } .top__toggle i:last-child { top: 25px; }
.top__toggle[aria-expanded="true"] i:first-child { top: 21px; transform: rotate(45deg); }
.top__toggle[aria-expanded="true"] i:last-child { top: 21px; transform: rotate(-45deg); }
/* mobile menu: a panel that slides in from the right over a dimmed page */
.drawer { position: fixed; inset: 0; z-index: 70; visibility: hidden; pointer-events: none; transition: visibility 0s linear .55s; }
.drawer.is-open { visibility: visible; pointer-events: auto; transition-delay: 0s; }
.drawer__scrim { position: absolute; inset: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, .62); opacity: 0; transition: opacity .5s ease; cursor: default; }
.drawer.is-open .drawer__scrim { opacity: 1; }
.drawer__panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(88vw, 380px); display: flex; flex-direction: column; gap: 18px; padding: calc(16px + env(safe-area-inset-top)) 18px calc(20px + env(safe-area-inset-bottom)); overflow-y: auto; overscroll-behavior: contain; background: #0b0b0c; border-left: 1px solid var(--line-2); border-radius: 30px 0 0 30px; box-shadow: -30px 0 80px rgba(0, 0, 0, .55); transform: translateX(104%); transition: transform .55s var(--ease); will-change: transform; }
.drawer.is-open .drawer__panel { transform: none; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; min-height: 48px; }
.drawer__title { display: inline-flex; align-items: center; gap: 10px; font: 700 18px/1 var(--display); letter-spacing: -.01em; }
.drawer__x { position: relative; width: 44px; height: 44px; border-radius: 50%; background: rgba(255, 255, 255, .07); transition: background .2s, transform .5s var(--ease); }
.drawer__x:hover { background: rgba(255, 255, 255, .14); }
.drawer__x i { position: absolute; left: 14px; right: 14px; top: 21px; height: 2px; background: #fff; border-radius: 2px; }
.drawer__x i:first-child { transform: rotate(45deg); } .drawer__x i:last-child { transform: rotate(-45deg); }
.drawer.is-open .drawer__x { transform: rotate(90deg); }
.drawer nav { display: grid; }
.drawer nav a { padding: 14px 12px; border-radius: 14px; font-size: 19px; font-weight: 500; min-height: 52px; display: flex; align-items: center; border-bottom: 1px solid rgba(255, 255, 255, .06); opacity: 0; transform: translateX(26px); transition: opacity .3s ease, transform .3s ease, background .2s; }
.drawer.is-open nav a { opacity: 1; transform: none; transition: opacity .5s ease calc(.14s + var(--i, 0) * .05s), transform .6s var(--ease) calc(.14s + var(--i, 0) * .05s), background .2s; }
.drawer nav a:active, .drawer nav a:hover { background: rgba(255, 255, 255, .07); }
.drawer__cta { display: grid; gap: 10px; margin-top: auto; opacity: 0; transform: translateY(14px); transition: opacity .3s ease, transform .3s ease; }
.drawer.is-open .drawer__cta { opacity: 1; transform: none; transition: opacity .5s ease .42s, transform .6s var(--ease) .42s; }
html.is-drawer, html.is-drawer body { overflow: hidden; }
@media (min-width: 1061px) { .drawer { display: none; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 600; font-size: 15px; letter-spacing: -.005em; border: 1px solid transparent; white-space: nowrap; transition: transform .25s var(--ease), background .25s, border-color .25s, box-shadow .25s; }
.btn .lui { font-size: 20px; }
.btn em { font-style: normal; font-size: 12px; font-weight: 600; padding: 3px 8px; border-radius: 999px; background: rgba(255, 255, 255, .12); color: var(--muted); }
.btn--lg { min-height: 56px; padding: 0 28px; font-size: 16px; }
.btn--sm { min-height: 44px; padding: 0 18px; font-size: 14px; }
.btn--solid { background: #fff; color: #000; --ko: #fff; box-shadow: 0 0 0 0 rgba(255, 255, 255, .0); }
.btn--solid .lui { --ac: #000; }
.btn--solid:hover { transform: translateY(-2px); box-shadow: 0 12px 40px -8px rgba(255, 255, 255, .45); }
.btn--glass { background: rgba(255, 255, 255, .07); border-color: var(--line-2); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.btn--glass:hover { background: rgba(255, 255, 255, .13); transform: translateY(-2px); }
.btn:active { transform: scale(.98); }

/* layout */
.section { max-width: var(--max); margin: 0 auto; padding: var(--section) var(--gutter) 0; }
.head { text-align: center; max-width: 680px; margin: 0 auto clamp(34px, 5vw, 56px); }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .26em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; text-wrap: balance; }
.hero__copy .eyebrow { font-size: 11px; letter-spacing: .2em; }
.head h2, .cta h2 { font: 800 clamp(34px, 5.4vw, 60px)/1.04 var(--display); letter-spacing: -.025em; text-wrap: balance; }
.head p:not(.eyebrow) { margin-top: 16px; color: var(--muted); font-size: clamp(16px, 1.6vw, 18px); text-wrap: pretty; }

/* hero */
.hero { max-width: var(--max); margin: 0 auto; padding: clamp(48px, 9vw, 112px) var(--gutter) 0; display: grid; justify-items: center; text-align: center; }
.hero__title { font: 800 clamp(72px, 14vw, 168px)/.86 var(--display); letter-spacing: -.045em; display: grid; margin-top: 4px; }
.hero__title span:first-child { background: linear-gradient(180deg, #fff 30%, #9c9ca2); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__title span:last-child { letter-spacing: -.01em; font-weight: 700; color: rgba(255, 255, 255, .88); }
.hero__tag { margin-top: 22px; font-size: 13px; font-weight: 600; letter-spacing: .32em; text-transform: uppercase; color: var(--text); }
.hero__lead { margin: 18px auto 0; max-width: 520px; color: var(--muted); font-size: clamp(16px, 1.5vw, 18px); text-wrap: pretty; }
.hero__cta { margin-top: 30px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.stats { margin-top: 34px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.stats li { display: grid; grid-template-columns: auto 1fr; grid-template-areas: "ico val" "ico lbl"; column-gap: 12px; align-items: center; padding: 14px 20px 14px 14px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255, 255, 255, .03); min-width: 178px; }
.stats__ico { grid-area: ico; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; background: var(--surface-3); font-size: 22px; --ko: var(--surface-3); }
.stats li { text-align: left; }
.stats__val { grid-area: val; font: 700 22px/1.1 var(--display); letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.stats__lbl { grid-area: lbl; font-size: 13px; color: var(--muted); }

/* reveal */
.js .in { opacity: 0; transform: translateY(18px); animation: rise .9s var(--ease) var(--d, 0s) forwards; }
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease) var(--d, 0s), transform .8s var(--ease) var(--d, 0s); }
.js .reveal.is-in { opacity: 1; transform: none; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* chips + tiles */
.chip { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 17px; background: var(--surface-3); border: 1px solid var(--line); font-size: 26px; --ko: var(--surface-3); }
.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: var(--gap); }
.tile { position: relative; overflow: hidden; padding: clamp(22px, 2.6vw, 32px); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, var(--surface-2), var(--surface)); display: flex; flex-direction: column; gap: 10px; min-height: 230px; transition: border-color .3s, transform .4s var(--ease); }
.tile:hover { border-color: var(--line-2); transform: translateY(-3px); }
.tile .chip { margin-bottom: 14px; }
.tile h3, .plat h3, .step h3 { font: 700 clamp(20px, 2vw, 24px)/1.15 var(--display); letter-spacing: -.015em; }
.tile p, .plat p, .step p { color: var(--muted); font-size: 15px; max-width: 46ch; }
.tile { grid-column: span 2; }
.tile--wide { grid-column: span 4; }
.tile--tall { grid-row: span 2; }
.tile--shot { overflow: hidden; }
.tile--shot img { position: absolute; left: 0; right: 0; margin: 0 auto; top: 250px; width: 72%; border-radius: 26px; border: 1px solid var(--line-2); box-shadow: 0 -10px 60px rgba(255, 255, 255, .06); }
.tile--shot::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 45%; background: linear-gradient(180deg, transparent, var(--surface)); pointer-events: none; }
.tile--tall { min-height: 520px; }
.tile--lib > *:not(img), .tile--theme > *:not(.swatches) { max-width: 52%; }
.tile--lib { min-height: 290px; }
.tile__covers { position: absolute; right: -1%; bottom: -3%; width: min(50%, 470px); pointer-events: none; }
.tile--theme { min-height: 250px; }
.swatches { position: absolute; right: clamp(20px, 4vw, 56px); top: 50%; transform: translateY(-50%); display: flex; gap: clamp(12px, 1.6vw, 20px); }
.swatches span { width: clamp(58px, 6.2vw, 86px); aspect-ratio: 1; border-radius: 24px; box-shadow: 0 22px 56px -8px var(--glow), 0 0 0 1px rgba(255, 255, 255, .1); transition: transform .5s var(--ease); }
.swatches span:nth-child(1) { transform: rotate(-6deg); } .swatches span:nth-child(3) { transform: rotate(6deg); }
.tile--theme:hover .swatches span { transform: rotate(0) translateY(-4px); }
.swatches img { border-radius: 24px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 14px; }
.tags li { padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-2); background: rgba(255, 255, 255, .05); font-size: 13px; font-weight: 600; }

/* platforms */
.plats { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--gap); }
.plat { padding: clamp(22px, 2.4vw, 28px); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, var(--surface-2), var(--surface)); display: flex; flex-direction: column; gap: 10px; transition: border-color .3s, transform .4s var(--ease); }
.plat:hover { border-color: var(--line-2); transform: translateY(-3px); }
.plat .chip { margin-bottom: 14px; }
.plat--hot { background: linear-gradient(180deg, #1e1e21, #101011); border-color: var(--line-2); }
.more { margin-top: auto; padding-top: 14px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; min-height: 44px; }
.more .lui { font-size: 18px; transform: scaleX(-1); transition: transform .3s var(--ease); }
.more:hover .lui { transform: scaleX(-1) translateX(-4px); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--gap); counter-reset: s; }
.step { position: relative; padding: clamp(22px, 2.4vw, 28px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); display: flex; flex-direction: column; gap: 10px; }
.step .chip { margin-bottom: 14px; }

/* faq */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.qa { border: 1px solid var(--line); border-radius: 22px; background: var(--surface); transition: border-color .3s, background .3s; }
.qa.is-open { border-color: var(--line-2); background: var(--surface-2); }
.qa summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 22px; min-height: 64px; font: 600 clamp(16px, 1.6vw, 18px)/1.3 var(--font); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary .lui { font-size: 22px; color: var(--muted); transition: transform .35s var(--ease); }
.qa.is-open summary .lui { transform: rotate(45deg); color: #fff; }
.qa p { padding: 0 22px 22px; color: var(--muted); max-width: 64ch; }
.qa a { color: #fff; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255, 255, 255, .4); }

/* cta */
.cta { position: relative; overflow: hidden; text-align: center; padding: clamp(44px, 7vw, 88px) var(--gutter); border: 1px solid var(--line-2); border-radius: 40px; background: radial-gradient(120% 140% at 50% 0%, #25252a 0%, #0b0b0c 60%); display: grid; justify-items: center; gap: 22px; }
.cta__mark { width: 56px; height: auto; filter: drop-shadow(0 0 24px rgba(255, 255, 255, .5)); }
.cta__row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 8px; }

/* footer */
.foot { margin-top: var(--section); border-top: 1px solid var(--line); padding: 40px var(--gutter) calc(40px + env(safe-area-inset-bottom)); }
.foot__in { max-width: var(--max); margin: 0 auto; display: grid; gap: 22px; }
.foot__brand { display: flex; align-items: center; gap: 10px; font: 700 18px/1 var(--display); }
.foot__brand span { color: var(--muted); font: 500 14px/1 var(--font); }
.foot__links { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.foot__links a { padding: 10px 12px; border-radius: 12px; color: var(--muted); font-size: 14px; min-height: 44px; display: inline-flex; align-items: center; transition: color .2s, background .2s; }
.foot__links a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.foot__note { color: #7d7d84; font-size: 13px; max-width: 70ch; }
.foot__note a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255, 255, 255, .25); }

/* responsive */
@media (max-width: 1060px) {
  .top__nav { display: none; }
  .top__toggle { display: block; margin-left: 0; }
  .top__nav + .lang { margin-left: auto; }
  .top__cta { display: none; }
  .plats, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plats .plat:last-child:nth-child(odd) { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tile, .tile--wide { grid-column: span 2; min-height: 0; }
  .tile--tall { grid-row: auto; min-height: 420px; }
  .tile--shot img { width: 60%; top: 230px; }
  .tile--lib > *:not(img), .tile--theme > *:not(.swatches) { max-width: none; }
  .tile__covers { position: static; width: 100%; margin: 6px 0 -10px; }
  .swatches { position: static; transform: none; margin-top: 8px; }
  .swatches span { width: 30vw; max-width: 110px; }
  .plats, .steps { grid-template-columns: 1fr; }
  .btn--lg { width: 100%; }
  .hero__cta { width: 100%; }
  .stats li { flex: 1 1 100%; }
}
@media (max-width: 1060px), (hover: none) {
  .top__dock, .drawer__panel, .btn--glass { -webkit-backdrop-filter: none; backdrop-filter: none; }
  .top__dock { background: rgba(12, 12, 13, .94); }
  .top.is-stuck .top__dock { background: rgba(10, 10, 11, .98); }
  .btn--glass { background: rgba(38, 38, 40, .9); }
  .tile, .plat { isolation: isolate; }
  .tile:hover, .plat:hover { transform: none; }
  .btn--solid:hover, .btn--glass:hover { transform: none; box-shadow: none; }
  .js .reveal { transform: none; transition: opacity .6s ease var(--d, 0s); }
  .atmos__b { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .in, .js .reveal { opacity: 1; transform: none; animation: none; transition: none; }
  * { transition-duration: .01ms !important; }
}