:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f6f6f4;
  --surface-strong: #ececea;
  --text: #111111;
  --muted: #696968;
  --line: #dededb;
  --line-soft: #ebebe8;
  --button: #161616;
  --button-text: #ffffff;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.12);
  --header: rgba(255, 255, 255, 0.82);
  --radius: 22px;
}

html[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0d0d0d;
  --surface: #161616;
  --surface-strong: #202020;
  --text: #f3f3f1;
  --muted: #a1a19c;
  --line: #2d2d2b;
  --line-soft: #222220;
  --button: #f5f5f2;
  --button-text: #111111;
  --shadow: 0 30px 100px rgba(0, 0, 0, 0.46);
  --header: rgba(13, 13, 13, 0.84);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  transition: background-color 0.25s ease, color 0.25s ease;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

button {
  color: inherit;
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 34px;
  border-bottom: 1px solid transparent;
  background: var(--header);
  backdrop-filter: blur(18px);
  transition: border-color 0.2s ease, background-color 0.25s ease;
}

.site-header.scrolled {
  border-color: var(--line-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  font-size: 14px;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.brand img {
  width: 31px;
  height: 31px;
  border-radius: 9px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
}

.main-nav a,
footer a {
  transition: color 0.18s ease;
}

.main-nav a:hover,
footer a:hover {
  color: var(--text);
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.05em;
  transition:
    color 0.18s ease,
    border-color 0.18s ease,
    background-color 0.18s ease,
    transform 0.18s ease;
}

.lang-switch:hover {
  border-color: var(--text);
  background: var(--surface);
  color: var(--text);
}

.theme-toggle {
  position: relative;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  overflow: hidden;
}

.theme-toggle span {
  position: absolute;
  line-height: 1;
  transition: opacity 0.2s ease, transform 0.25s ease;
}

.theme-sun {
  font-size: 17px;
}

.theme-moon {
  font-size: 15px;
  transform: translateY(18px);
  opacity: 0;
}

html[data-theme='dark'] .theme-sun {
  opacity: 0;
  transform: translateY(-18px);
}

html[data-theme='dark'] .theme-moon {
  opacity: 1;
  transform: translateY(0);
}

.header-download {
  padding: 8px 16px 9px;
  border-radius: 999px;
  background: var(--button);
  color: var(--button-text);
  font-size: 13px;
  font-weight: 650;
}

.hero {
  position: relative;
  isolation: isolate;
  max-width: 940px;
  margin: 0 auto;
  padding: 105px 24px 80px;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 10px;
  left: 50%;
  width: min(760px, 94vw);
  height: 470px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(86, 141, 184, 0.12), transparent 42%),
    radial-gradient(circle at 67% 58%, rgba(135, 78, 145, 0.1), transparent 44%);
  filter: blur(30px);
  transform: translateX(-50%);
  pointer-events: none;
}

.hero-emblem {
  position: relative;
  width: 160px;
  height: 150px;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
}

.hero-mark {
  position: relative;
  z-index: 3;
  width: 94px;
  height: 94px;
  margin: 0;
  border-radius: 25px;
  box-shadow: 0 16px 46px rgba(21, 26, 32, 0.18);
  animation: emblem-float 5s ease-in-out infinite;
}

.emblem-orbit,
.emblem-pulse {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.emblem-orbit {
  border: 1px solid color-mix(in srgb, var(--text) 15%, transparent);
}

.emblem-orbit::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 15px color-mix(in srgb, var(--text) 55%, transparent);
}

.orbit-one {
  width: 132px;
  height: 132px;
  animation: emblem-orbit 11s linear infinite;
}

.orbit-two {
  width: 155px;
  height: 103px;
  transform: rotate(42deg);
  animation: emblem-orbit-wide 15s linear infinite reverse;
}

.emblem-pulse {
  width: 112px;
  height: 112px;
  border: 1px solid rgba(102, 143, 183, 0.2);
  animation: emblem-pulse 3.2s ease-out infinite;
}

@keyframes emblem-float {
  0%,
  100% { transform: translateY(0) rotate(0.001deg); }
  50% { transform: translateY(-6px) rotate(0.001deg); }
}

@keyframes emblem-orbit {
  to { transform: rotate(360deg); }
}

@keyframes emblem-orbit-wide {
  from { transform: rotate(42deg); }
  to { transform: rotate(402deg); }
}

@keyframes emblem-pulse {
  0% { opacity: 0.65; transform: scale(0.88); }
  80%,
  100% { opacity: 0; transform: scale(1.3); }
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(54px, 8vw, 94px);
  font-weight: 620;
  letter-spacing: -0.067em;
  line-height: 0.98;
}

.hero-copy {
  max-width: 650px;
  margin: 31px auto 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 36px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
  transform: translateZ(0);
  backface-visibility: hidden;
  transition:
    opacity 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.button:hover {
  box-shadow: 0 7px 20px rgba(0, 0, 0, 0.12);
}

.button:active {
  opacity: 0.82;
  box-shadow: none;
}

.button.primary {
  border-color: var(--button);
  background: var(--button);
  color: var(--button-text);
}

.button.secondary {
  background: var(--bg);
}

.button.large {
  min-height: 56px;
  padding: 0 29px;
  font-size: 15px;
}

.windows-glyph {
  font-size: 20px;
  font-weight: 400;
  line-height: 0;
}

.release-note {
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.product-stage {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 30px 130px;
}

.app-window {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  border: 1px solid #33363a;
  border-radius: 20px;
  background: #0d0f12;
  color: #f5f5f5;
  box-shadow: var(--shadow);
}

.window-bar {
  height: 66px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.window-brand img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.window-tabs {
  display: flex;
  align-items: center;
  gap: 25px;
  color: #7e8289;
  font-size: 12px;
}

.window-tabs .active {
  color: #fff;
}

.window-controls {
  justify-self: end;
  display: flex;
  gap: 13px;
}

.window-controls i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #565b62;
}

.library-layout {
  min-height: 530px;
  display: grid;
  grid-template-columns: 185px 1fr;
}

.mock-sidebar {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 30px 19px;
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  color: #7d8187;
  font-size: 12px;
}

.mock-sidebar strong {
  margin: 0 8px 12px;
  color: #ebedef;
  font-size: 12px;
}

.mock-sidebar span {
  padding: 9px 10px;
  border-radius: 8px;
}

.mock-sidebar .selected {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.mock-content {
  padding: 34px 38px 120px;
}

.content-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 28px;
}

.content-heading small {
  color: #666b72;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.content-heading h2 {
  margin: 3px 0 0;
  font-size: 32px;
  font-weight: 570;
  letter-spacing: -0.04em;
}

.content-heading button {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 50%;
  background: transparent;
  color: #d6d8db;
}

.album-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.album-grid article strong,
.album-grid article small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.album-grid article strong {
  margin-top: 13px;
  font-size: 13px;
  font-weight: 560;
}

.album-grid article small {
  margin-top: 3px;
  color: #767b82;
  font-size: 11px;
}

.album-art {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 13px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.album-art span {
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(22px, 4vw, 50px);
  font-weight: 700;
  letter-spacing: -0.08em;
}

.art-one {
  background:
    radial-gradient(circle at 25% 25%, #344553, transparent 35%),
    radial-gradient(circle at 72% 66%, #352b39, transparent 40%),
    #171c20;
}

.art-two {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent 45%),
    radial-gradient(circle at 80% 20%, #8a6d85, transparent 38%),
    linear-gradient(145deg, #2f4652, #241a2a);
}

.art-three {
  background:
    repeating-linear-gradient(90deg, transparent 0 7px, rgba(255, 255, 255, 0.12) 8px 9px),
    linear-gradient(135deg, #38424d, #16191d);
}

.art-four {
  background:
    radial-gradient(circle, transparent 28%, rgba(255, 255, 255, 0.12) 29% 30%, transparent 31%),
    #322f2d;
}

.mock-player {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 17px;
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto minmax(150px, 0.8fr) auto;
  align-items: center;
  gap: 16px;
  padding: 11px 17px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 16px;
  background: rgba(24, 26, 30, 0.86);
  backdrop-filter: blur(20px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
}

.track-cover {
  width: 56px;
  height: 56px;
  border-radius: 10px;
}

.track-meta {
  min-width: 0;
}

.track-meta strong,
.track-meta small {
  display: block;
}

.track-meta strong {
  font-size: 12px;
}

.track-meta small {
  color: #82868c;
  font-size: 10px;
}

.transport {
  display: flex;
  align-items: center;
  gap: 13px;
  color: #a7abb0;
}

.transport button {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: #f3f3f2;
  color: #111;
  font-size: 12px;
}

.timeline {
  height: 3px;
  overflow: hidden;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.12);
}

.timeline i {
  display: block;
  width: 53%;
  height: 100%;
  background: #f1f1f1;
}

.track-time {
  color: #777c82;
  font-size: 9px;
}

.interface-orbit {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  --lift: 0px;
  position: relative;
  isolation: isolate;
  transform:
    perspective(1400px)
    translateY(var(--lift))
    rotateX(var(--tilt-x))
    rotateY(var(--tilt-y));
  transform-style: preserve-3d;
  transition: transform 0.18s ease-out;
  will-change: transform;
}

.interface-glow {
  position: absolute;
  z-index: -1;
  inset: 8% 7% -7%;
  border-radius: 40%;
  background:
    radial-gradient(circle at 24% 25%, rgba(89, 142, 198, 0.34), transparent 38%),
    radial-gradient(circle at 78% 68%, rgba(141, 77, 146, 0.3), transparent 40%);
  filter: blur(65px);
  opacity: 0.58;
  animation: interface-breathe 6s ease-in-out infinite alternate;
}

.real-interface {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid #34363a;
  border-radius: 22px;
  background: #090a0b;
  box-shadow:
    0 50px 110px rgba(0, 0, 0, 0.24),
    0 12px 30px rgba(0, 0, 0, 0.16),
    inset 0 1px rgba(255, 255, 255, 0.09);
  transform: translateZ(0);
}

.real-interface::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    115deg,
    transparent 25%,
    rgba(255, 255, 255, 0.11) 45%,
    transparent 64%
  );
  transform: translateX(-120%);
  animation: interface-shine 7s ease-in-out 1.5s infinite;
}

.real-interface img {
  width: 100%;
  height: auto;
  display: block;
}

.real-interface figcaption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  background: rgba(10, 10, 11, 0.72);
  color: rgba(255, 255, 255, 0.72);
  font-size: 10px;
  letter-spacing: 0.04em;
  backdrop-filter: blur(10px);
}

.floating-pill {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
  backdrop-filter: blur(16px);
  transform: translateZ(50px);
}

.floating-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #58c887;
  box-shadow: 0 0 0 5px rgba(88, 200, 135, 0.12);
}

.pill-local {
  top: 12%;
  left: -3%;
  animation: pill-float 4.8s ease-in-out infinite;
}

.pill-windows {
  right: -2%;
  bottom: 11%;
  animation: pill-float 5.4s ease-in-out -2.1s infinite;
}

.pill-windows::before {
  background: #70a7ef;
  box-shadow: 0 0 0 5px rgba(112, 167, 239, 0.12);
}

@keyframes interface-breathe {
  to {
    opacity: 0.9;
    transform: scale(1.05);
  }
}

@keyframes interface-shine {
  0%,
  60% {
    transform: translateX(-120%);
  }
  82%,
  100% {
    transform: translateX(120%);
  }
}

@keyframes pill-float {
  0%,
  100% {
    margin-top: 0;
  }
  50% {
    margin-top: -10px;
  }
}

.sound-ribbon {
  position: relative;
  z-index: 2;
  width: 100%;
  margin-left: 0;
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, var(--surface), color-mix(in srgb, var(--surface) 72%, var(--bg)));
}

.sound-ribbon::before,
.sound-ribbon::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  width: clamp(56px, 12vw, 140px);
  pointer-events: none;
}

.sound-ribbon::before {
  left: 0;
  background: linear-gradient(90deg, var(--surface) 12%, transparent);
}

.sound-ribbon::after {
  right: 0;
  background: linear-gradient(-90deg, var(--surface) 12%, transparent);
}

.sound-ribbon-track {
  position: relative;
  z-index: 1;
  width: max-content;
  display: flex;
  align-items: center;
  gap: 0;
  color: var(--text);
  animation: sound-marquee 28s linear infinite;
  will-change: transform;
}

.sound-ribbon-track > * {
  margin-right: 28px;
}

.sound-ribbon-track span {
  font-size: 13px;
  font-weight: 680;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex: 0 0 auto;
}

.sound-ribbon-track i {
  color: var(--muted);
  font-size: 8px;
  font-style: normal;
  flex: 0 0 auto;
}

@keyframes sound-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 125px 28px;
}

.statement {
  text-align: center;
}

.statement > h2,
.section-heading h2,
.guide-promo h2,
.download h2 {
  margin: 0;
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 580;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.statement > p:not(.eyebrow),
.section-heading > p:not(.eyebrow) {
  max-width: 660px;
  margin: 25px auto 0;
  color: var(--muted);
  font-size: 18px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 80px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  text-align: left;
}

.principles article {
  min-height: 260px;
  padding: 32px;
  background: var(--bg);
}

.principle-icon {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 18px;
}

.principles h3 {
  margin: 64px 0 8px;
  font-size: 21px;
  font-weight: 580;
  letter-spacing: -0.03em;
}

.principles p,
.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.features {
  max-width: 1240px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 58px;
}

.section-heading h2,
.statement > h2,
.guide-hero h1,
.guide-section h2,
.feature-card h3,
.highlight-card h3,
.download-option strong,
.check-card h3,
.version-card h3,
.timeline-item h3 {
  text-wrap: balance;
}

.section-heading > p:not(.eyebrow),
.guide-hero > p:not(.eyebrow),
.feature-card p,
.highlight-card p,
.download-option p,
.check-card p,
.version-card p,
.timeline-item p {
  overflow-wrap: anywhere;
}

.section-heading > p:not(.eyebrow) {
  margin-left: 0;
}

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

.feature-card {
  position: relative;
  isolation: isolate;
  min-height: 430px;
  overflow: hidden;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.feature-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95, 143, 182, 0.16), transparent 68%);
  filter: blur(12px);
  opacity: 0.65;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.5s ease;
}

.feature-card:nth-child(odd)::before {
  top: -125px;
  right: -90px;
}

.feature-card:nth-child(even)::before {
  left: -110px;
  bottom: -145px;
  background: radial-gradient(circle, rgba(135, 80, 145, 0.14), transparent 68%);
}

.feature-card:hover::before {
  opacity: 1;
  transform: scale(1.12);
}

.feature-wide {
  grid-column: 1 / -1;
  min-height: 480px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.card-number {
  display: block;
  margin-bottom: 68px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.feature-card h3 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 580;
  letter-spacing: -0.045em;
}

.feature-card p {
  max-width: 470px;
  font-size: 15px;
}

.library-demo {
  display: grid;
  gap: 9px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.07);
}

.library-demo > div {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 10px;
  border-radius: 11px;
}

.library-demo > div:first-child {
  background: var(--surface);
}

.demo-cover {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 9px;
}

.c1 { background: linear-gradient(135deg, #263847, #161b21); }
.c2 { background: linear-gradient(135deg, #796276, #293c45); }
.c3 { background: repeating-linear-gradient(45deg, #313b45 0 8px, #17191b 8px 16px); }

.library-demo span,
.mini-demo span {
  display: grid;
}

.library-demo b,
.mini-demo b {
  font-size: 13px;
  font-weight: 600;
}

.library-demo small,
.mini-demo small {
  color: var(--muted);
  font-size: 11px;
}

.eq-demo {
  height: 135px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 10px;
  margin-top: 74px;
  padding: 25px 18px 0;
  border-bottom: 1px solid var(--line);
}

.eq-demo i {
  position: relative;
  width: 4px;
  height: var(--h);
  border-radius: 8px;
  background: var(--text);
}

.eq-demo i::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 13px;
  height: 13px;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--text);
  transform: translate(-50%, -50%);
}

.wave-demo {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-top: 60px;
}

.wave-demo span {
  width: 5px;
  border-radius: 8px;
  background: var(--text);
  animation: wave 1.7s ease-in-out infinite alternate;
}

.wave-demo span:nth-child(1),
.wave-demo span:nth-child(12) { height: 26px; }
.wave-demo span:nth-child(2),
.wave-demo span:nth-child(11) { height: 52px; animation-delay: -0.7s; }
.wave-demo span:nth-child(3),
.wave-demo span:nth-child(10) { height: 78px; animation-delay: -1.1s; }
.wave-demo span:nth-child(4),
.wave-demo span:nth-child(9) { height: 42px; animation-delay: -0.3s; }
.wave-demo span:nth-child(5),
.wave-demo span:nth-child(8) { height: 94px; animation-delay: -1.4s; }
.wave-demo span:nth-child(6),
.wave-demo span:nth-child(7) { height: 64px; animation-delay: -0.9s; }

@keyframes wave {
  to { transform: scaleY(0.5); opacity: 0.55; }
}

.profiles-demo {
  display: flex;
  align-items: center;
  margin-top: 68px;
  padding-left: 8px;
}

.profiles-demo span {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  margin-left: -8px;
  border: 5px solid var(--surface);
  border-radius: 50%;
  background: var(--text);
  color: var(--bg);
  font-size: 20px;
  font-weight: 700;
}

.profiles-demo span:nth-child(2) {
  background: var(--surface-strong);
  color: var(--text);
}

.profiles-demo span:last-child {
  background: var(--bg);
  color: var(--muted);
}

.mini-demo {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  margin-top: 74px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--bg);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
}

.mini-demo strong {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-strong);
  font-size: 13px;
}

.guide-promo {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: start;
}

.guide-promo h2 {
  max-width: 650px;
  font-size: clamp(40px, 5vw, 62px);
}

.guide-promo ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.guide-promo li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.guide-promo li > span {
  color: var(--muted);
  font-size: 12px;
}

.guide-promo strong {
  font-size: 16px;
}

.guide-promo li p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.text-link {
  grid-column: 2;
  width: max-content;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 650;
}

.text-link span {
  transition: transform 0.18s ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 70px;
  align-items: center;
}

.contact-copy h2 {
  max-width: 520px;
  margin: 0;
  font-size: clamp(42px, 5.5vw, 67px);
  font-weight: 580;
  letter-spacing: -0.055em;
  line-height: 1.03;
}

.contact-copy > p:not(.eyebrow) {
  max-width: 520px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 31px;
}

.copy-email {
  cursor: pointer;
}

.copy-email.copied {
  border-color: #59b77b;
  color: #348155;
}

.contact-card {
  position: relative;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 36px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 82% 15%, rgba(111, 153, 195, 0.42), transparent 31%),
    radial-gradient(circle at 24% 76%, rgba(137, 79, 145, 0.38), transparent 38%),
    var(--text);
  color: var(--bg);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.15);
  transform: translateZ(0);
  transition: box-shadow 0.35s ease, filter 0.35s ease;
}

.contact-card:hover {
  filter: saturate(1.12);
  box-shadow: 0 40px 95px rgba(0, 0, 0, 0.22);
}

.contact-status {
  position: absolute;
  top: 28px;
  left: 30px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid color-mix(in srgb, var(--bg) 24%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 55%, transparent);
  font-size: 11px;
  font-weight: 650;
  backdrop-filter: blur(12px);
}

.contact-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #63dc91;
  box-shadow: 0 0 0 5px rgba(99, 220, 145, 0.13);
}

.contact-caption {
  position: relative;
  z-index: 2;
  margin-bottom: 10px;
  opacity: 0.6;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.18em;
}

.contact-card strong {
  position: relative;
  z-index: 2;
  max-width: calc(100% - 50px);
  overflow-wrap: anywhere;
  font-size: clamp(22px, 3.2vw, 39px);
  font-weight: 580;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.contact-arrow {
  position: absolute;
  z-index: 3;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--bg) 30%, transparent);
  border-radius: 50%;
  font-size: 20px;
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.contact-card:hover .contact-arrow {
  background: color-mix(in srgb, var(--bg) 12%, transparent);
  transform: rotate(8deg);
}

.contact-ring {
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--bg) 18%, transparent);
  border-radius: 50%;
  pointer-events: none;
}

.ring-a {
  top: -75px;
  right: -55px;
  width: 270px;
  height: 270px;
  animation: contact-orbit 16s linear infinite;
}

.ring-b {
  top: -13px;
  right: 7px;
  width: 145px;
  height: 145px;
  border-style: dashed;
  animation: contact-orbit 12s linear infinite reverse;
}

@keyframes contact-orbit {
  to { transform: rotate(360deg); }
}

.download {
  max-width: 1100px;
  margin-bottom: 100px;
  padding-top: 115px;
  padding-bottom: 115px;
  border-radius: 30px;
  background: var(--surface);
  text-align: center;
}

.download img {
  width: 76px;
  height: 76px;
  margin-bottom: 25px;
  border-radius: 22px;
}

.download h2 {
  font-size: clamp(44px, 6vw, 70px);
}

.download > p:not(.eyebrow) {
  margin: 23px auto 30px;
  color: var(--muted);
  font-size: 17px;
}

.download > small {
  display: block;
  margin-top: 14px;
  color: var(--muted);
  font-size: 11px;
}

footer {
  min-height: 180px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 40px 35px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
}

footer p {
  margin: 0;
}

footer > div {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Guide */
.guide-shell {
  max-width: 1120px;
  display: grid;
  grid-template-columns: 225px minmax(0, 1fr);
  gap: 70px;
  margin: 0 auto;
  padding: 80px 30px 130px;
}

.guide-sidebar {
  position: sticky;
  top: 105px;
  align-self: start;
  display: grid;
  gap: 4px;
}

.guide-sidebar strong {
  margin: 0 12px 13px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guide-sidebar a {
  padding: 8px 12px;
  border-radius: 9px;
  color: var(--muted);
  font-size: 13px;
}

.guide-sidebar a:hover,
.guide-sidebar a.active {
  background: var(--surface);
  color: var(--text);
}

.guide-content {
  min-width: 0;
}

.guide-hero {
  padding-bottom: 55px;
  border-bottom: 1px solid var(--line);
}

.guide-hero h1 {
  margin: 0;
  font-size: clamp(48px, 7vw, 76px);
  font-weight: 580;
  letter-spacing: -0.06em;
  line-height: 1;
}

.guide-hero p {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.guide-section {
  padding: 58px 0 16px;
  scroll-margin-top: 90px;
}

.guide-section h2 {
  margin: 0 0 22px;
  font-size: 34px;
  font-weight: 590;
  letter-spacing: -0.04em;
}

.guide-section h3 {
  margin: 32px 0 10px;
  font-size: 20px;
  font-weight: 600;
}

.guide-section p,
.guide-section li {
  color: var(--muted);
}

.guide-section ol,
.guide-section ul {
  padding-left: 22px;
}

.guide-section li {
  margin: 8px 0;
}

.guide-callout {
  margin: 25px 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

.guide-callout strong {
  color: var(--text);
}

.guide-callout.beta-warning {
  border-color: color-mix(in srgb, #b45309 35%, var(--line));
  background: color-mix(in srgb, #b45309 8%, var(--surface));
}

.beta-banner {
  width: calc(100% - 24px);
  max-width: none;
  margin: 10px auto 0;
  padding: 12px 24px;
  border: 1px solid color-mix(in srgb, #b45309 28%, var(--line));
  border-radius: 16px;
  background: color-mix(in srgb, #b45309 10%, var(--bg));
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  text-align: center;
}

.beta-banner strong {
  font-weight: 650;
}

.hero-simple {
  padding-top: 72px;
  padding-bottom: 48px;
}

.hero-simple .hero-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  border-radius: 18px;
  display: block;
}

.hero-simple h1 {
  font-size: clamp(42px, 7vw, 68px);
  letter-spacing: -0.05em;
}

.hero-simple .hero-copy {
  max-width: 520px;
  margin-top: 18px;
  font-size: 18px;
}

.hero-simple .hero-actions {
  margin-top: 28px;
}

.product-stage-simple {
  padding-top: 0;
  padding-bottom: 24px;
}

.product-stage-simple .real-interface {
  margin: 0 auto;
  max-width: 920px;
}

.product-stage-simple .real-interface img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.features-simple .section-heading {
  margin-bottom: 18px;
}

.simple-list {
  max-width: 720px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.simple-list li {
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.simple-list li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.simple-list strong {
  color: var(--text);
}

.download-inline .download-options,
.contacts-simple {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.contacts-simple {
  text-align: center;
  padding-bottom: 72px;
}

.contacts-simple .section-heading p a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.beta-pill {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border: 1px solid color-mix(in srgb, #b45309 40%, var(--line));
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  vertical-align: middle;
  color: #9a3412;
}

html[data-theme='dark'] .beta-pill {
  color: #fdba74;
}

.download-option.recommended {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}

.download-option.beta small,
.version-card.beta small {
  color: #9a3412;
}

html[data-theme='dark'] .download-option.beta small,
html[data-theme='dark'] .version-card.beta small {
  color: #fdba74;
}

.version-badge.beta {
  background: color-mix(in srgb, #b45309 16%, var(--surface));
  color: #9a3412;
}

html[data-theme='dark'] .version-badge.beta {
  color: #fdba74;
}

.shortcut-list {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 15px;
}

.shortcut-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  padding: 14px 17px;
  border-bottom: 1px solid var(--line);
}

.shortcut-row:last-child {
  border-bottom: 0;
}

kbd {
  width: max-content;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
}

.inline-download {
  margin-top: 32px;
  padding: 28px;
  border-radius: 18px;
  background: var(--surface);
}

.inline-download h3 {
  margin-top: 0;
}

.highlight-grid,
.download-options,
.check-grid,
.version-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.highlight-grid {
  margin-top: 36px;
}

.highlight-card,
.download-option,
.check-card,
.version-card,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.highlight-card,
.download-option,
.check-card,
.version-card {
  padding: 28px;
}

.highlight-card h3,
.download-option strong,
.check-card h3,
.version-card h3,
.timeline-item h3 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 580;
  letter-spacing: -0.04em;
}

.highlight-card p,
.highlight-card li,
.download-option p,
.check-card p,
.check-card li,
.version-card p,
.version-card li,
.timeline-item p,
.timeline-item li {
  color: var(--muted);
}

.highlight-card ul,
.check-card ul,
.version-card ul,
.timeline-item ul {
  margin: 0;
  padding-left: 20px;
}

.download-options {
  max-width: 780px;
  margin: 32px auto 0;
  text-align: left;
}

.download-option {
  background: var(--bg);
}

.download-option small,
.version-card small {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.download-option .button {
  width: 100%;
  margin-top: 18px;
}

.download-option .text-link {
  grid-column: auto;
  margin-top: 16px;
}

.download-footnote,
.page-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.timeline-list {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.timeline-item {
  padding: 24px 26px;
}

.timeline-item .eyebrow {
  margin-bottom: 10px;
}

.check-grid,
.version-grid {
  margin-top: 30px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
}

.version-card.current {
  background:
    radial-gradient(circle at top right, rgba(93, 145, 184, 0.12), transparent 38%),
    var(--surface);
}

.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.version-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-top: 18px;
}

.pointer-glow {
  position: fixed;
  z-index: 0;
  left: 0;
  top: 0;
  width: 430px;
  height: 430px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(97, 137, 171, 0.1), transparent 68%);
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  transition: opacity 0.35s ease;
  will-change: transform;
}

main,
footer {
  position: relative;
  z-index: 1;
}

html[data-theme='dark'] .pointer-glow {
  background: radial-gradient(circle, rgba(113, 153, 193, 0.14), transparent 68%);
}

.pointer-glow.visible {
  opacity: 1;
}

.hero > * {
  animation: hero-enter 0.8s cubic-bezier(0.2, 0.75, 0.2, 1) both;
}

.hero > :nth-child(1) { animation-delay: 0.05s; }
.hero > :nth-child(2) { animation-delay: 0.12s; }
.hero > :nth-child(3) { animation-delay: 0.19s; }
.hero > :nth-child(4) { animation-delay: 0.26s; }
.hero > :nth-child(5) { animation-delay: 0.33s; }
.hero > :nth-child(6) { animation-delay: 0.4s; }

@keyframes hero-enter {
  from {
    opacity: 0;
    transform: translateY(22px);
    filter: blur(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px) scale(0.995);
  transition:
    opacity 0.68s cubic-bezier(0.2, 0.75, 0.2, 1),
    transform 0.68s cubic-bezier(0.2, 0.75, 0.2, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.guide-section.reveal,
.guide-section.reveal.in-view {
  transform: none;
}

.feature-card,
.principles article {
  transition:
    transform 0.35s cubic-bezier(0.2, 0.75, 0.2, 1),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
}

@media (hover: hover) {
  .feature-card:hover {
    z-index: 2;
    border-color: color-mix(in srgb, var(--text) 22%, var(--line));
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.1);
    transform: translateY(-8px);
  }

  .principles article:hover {
    z-index: 2;
    transform: translateY(-5px);
  }
}

.button {
  position: relative;
  overflow: hidden;
}

.button::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.2), transparent 70%);
  transform: translateX(-130%);
  transition: transform 0.55s ease;
}

.button:hover::after {
  transform: translateX(130%);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .pointer-glow {
    display: none;
  }

  .hero-mark,
  .emblem-orbit,
  .emblem-pulse,
  .contact-ring {
    animation: none !important;
  }

  .sound-ribbon-track {
    animation: sound-marquee 60s linear infinite !important;
    animation-duration: 60s !important;
    animation-iteration-count: infinite !important;
  }
}

@media (max-width: 1180px) and (min-width: 901px) {
  .site-header {
    padding-inline: 20px;
  }

  .main-nav {
    gap: 11px;
    font-size: 12px;
  }

  .header-actions {
    gap: 7px;
  }
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 20px;
  }

  .main-nav {
    display: none;
  }

  .album-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .album-grid article:last-child {
    display: none;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .principles article {
    min-height: 220px;
  }

  .principles h3 {
    margin-top: 42px;
  }

  .feature-wide {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .guide-promo {
    grid-template-columns: 1fr;
  }

  .highlight-grid,
  .download-options,
  .check-grid,
  .version-grid {
    grid-template-columns: 1fr;
  }

  .contact-section {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .text-link {
    grid-column: 1;
  }

  .guide-shell {
    grid-template-columns: 1fr;
  }

  .guide-sidebar {
    position: static;
    display: flex;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .guide-sidebar strong {
    display: none;
  }

  .guide-sidebar a {
    flex: 0 0 auto;
  }
}

@media (max-width: 680px) {
  .site-header {
    height: 64px;
    padding: 0 15px;
  }

  .brand span {
    display: none;
  }

  .header-download {
    padding-inline: 14px;
  }

  .hero {
    padding: 72px 20px 60px;
  }

  .hero-mark {
    width: 76px;
    height: 76px;
  }

  .hero-emblem {
    width: 132px;
    height: 126px;
    margin-bottom: 11px;
  }

  .orbit-one {
    width: 108px;
    height: 108px;
  }

  .orbit-two {
    width: 128px;
    height: 84px;
  }

  .emblem-pulse {
    width: 91px;
    height: 91px;
  }

  .hero h1 {
    overflow-wrap: anywhere;
    font-size: clamp(43px, 12vw, 55px);
    letter-spacing: -0.058em;
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .product-stage {
    padding: 0 10px 75px;
  }

  .sound-ribbon {
    padding: 13px 0;
    width: 100%;
    margin-left: 0;
  }

  .sound-ribbon-track {
    animation-duration: 23s;
  }

  .sound-ribbon-track > * {
    margin-right: 22px;
  }

  .sound-ribbon-track span {
    font-size: 11px;
  }

  .interface-orbit {
    transform: none !important;
  }

  .real-interface {
    border-radius: 13px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  }

  .real-interface figcaption,
  .floating-pill {
    display: none;
  }

  .interface-glow {
    inset: 4% 3% -10%;
    filter: blur(34px);
  }

  .app-window {
    min-height: 535px;
    border-radius: 14px;
  }

  .window-bar {
    grid-template-columns: 1fr auto;
    height: 56px;
    padding: 0 14px;
  }

  .window-tabs {
    display: none;
  }

  .library-layout {
    grid-template-columns: 1fr;
  }

  .mock-sidebar {
    display: none;
  }

  .mock-content {
    padding: 25px 18px 110px;
  }

  .album-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .album-grid article:nth-child(n + 3) {
    display: none;
  }

  .mock-player {
    left: 9px;
    right: 9px;
    bottom: 9px;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
  }

  .timeline,
  .track-time {
    display: none;
  }

  .section {
    padding: 85px 18px;
  }

  .principles {
    margin-top: 52px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-wide {
    grid-column: 1;
  }

  .feature-card {
    min-height: 365px;
    padding: 27px;
  }

  .card-number {
    margin-bottom: 48px;
  }

  .library-demo {
    margin-top: 20px;
  }

  .download {
    margin: 30px 12px 70px;
    padding: 80px 20px;
  }

  .highlight-card,
  .download-option,
  .check-card,
  .version-card,
  .timeline-item {
    padding: 22px;
  }

  .contact-card {
    min-height: 320px;
    padding: 27px;
    border-radius: 23px;
  }

  .contact-status {
    top: 22px;
    left: 22px;
  }

  .contact-arrow {
    right: 22px;
    bottom: 22px;
  }

  .contact-actions {
    flex-direction: column;
  }

  .contact-actions .button {
    width: 100%;
  }

  .download .button {
    width: 100%;
    max-width: 330px;
  }

  footer {
    grid-template-columns: 1fr;
    min-height: 230px;
    padding: 38px 20px;
  }

  footer .brand span {
    display: inline;
  }

  footer > div {
    flex-wrap: wrap;
  }

  .guide-shell {
    gap: 35px;
    padding: 45px 18px 90px;
  }

  .shortcut-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 420px) {
  .site-header {
    padding-inline: 12px;
  }

  .header-actions {
    gap: 7px;
  }

  .theme-toggle {
    width: 36px;
    height: 36px;
  }

  .header-download {
    padding: 8px 13px 9px;
  }

  .hero {
    padding: 58px 17px 48px;
  }

  .hero h1 {
    font-size: clamp(39px, 11.5vw, 48px);
  }

  .hero-copy {
    margin-top: 23px;
    font-size: 16px;
  }

  .release-note {
    font-size: 11px;
  }

  .statement > h2,
  .section-heading h2,
  .guide-promo h2,
  .contact-copy h2,
  .download h2 {
    font-size: 40px;
  }

  .feature-card h3 {
    font-size: 27px;
  }

  .feature-card {
    min-height: 340px;
  }

  .eq-demo,
  .mini-demo,
  .profiles-demo {
    margin-top: 50px;
  }

  .guide-sidebar {
    margin-inline: -18px;
    padding-inline: 18px;
    scrollbar-width: none;
  }

  .guide-sidebar::-webkit-scrollbar {
    display: none;
  }
}