:root {
  --ink: #101a2d;
  --muted: #667793;
  --line: rgba(137, 156, 184, 0.22);
  --glass: rgba(255, 255, 255, 0.68);
  --glass-strong: rgba(255, 255, 255, 0.86);
  --blue: #2478ff;
  --violet: #7c5cff;
  --rose: #f05aa8;
  --gold: #d9b95e;
  --radius: 18px;
  --shadow: 0 26px 80px rgba(38, 55, 84, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(circle at 18% 0%, rgba(92, 132, 255, 0.2), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(240, 90, 168, 0.14), transparent 28%),
    linear-gradient(180deg, #f7fbff 0%, #edf6ff 45%, #f9fbff 100%);
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
}

.landing-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 26px;
  align-items: center;
  width: min(1120px, calc(100vw - 36px));
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 18px;
  background: rgba(34, 24, 50, 0.42);
  box-shadow: 0 18px 60px rgba(30, 19, 45, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(22px) saturate(1.3);
  transform: translateX(-50%);
}

.landing-brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: #fff;
  font-weight: 900;
}

.landing-brand small {
  display: block;
  color: rgba(255, 255, 255, 0.56);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brand-orb {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  overflow: hidden;
}

.brand-orb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.landing-nav nav {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.landing-nav nav a,
.nav-cta {
  border-radius: 999px;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
  transition: color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.landing-nav nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
  color: #171322;
  background: rgba(255, 255, 255, 0.94);
}

.nav-cta:hover,
.primary-action:hover,
.secondary-action:hover,
.ghost-action:hover {
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.5), 0 14px 34px rgba(240, 90, 168, 0.22);
  transform: translateY(-1px);
}

.hero-section {
  position: relative;
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 140px 24px 90px;
  overflow: hidden;
  background:
    radial-gradient(circle at 28% 44%, rgba(250, 72, 161, 0.22), transparent 28%),
    radial-gradient(circle at 72% 34%, rgba(99, 102, 241, 0.22), transparent 30%),
    linear-gradient(115deg, #25142d 0%, #332342 48%, #23152b 100%);
}

.floating-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 1;
  filter: saturate(1.18) contrast(1.06);
  mix-blend-mode: screen;
  pointer-events: none;
}

.hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.08), transparent 22%),
    radial-gradient(circle at 24% 42%, rgba(255, 255, 255, 0.12), transparent 18%),
    linear-gradient(180deg, rgba(28, 18, 34, 0.02), rgba(28, 18, 34, 0.2));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(860px, 100%);
  color: #fff;
  text-align: center;
  isolation: isolate;
}

.hero-content::before {
  content: "";
  position: absolute;
  inset: -54px -70px -40px;
  z-index: -1;
  border-radius: 999px;
  background: radial-gradient(ellipse at center, rgba(31, 18, 40, 0.44), rgba(31, 18, 40, 0.18) 42%, transparent 72%);
  filter: blur(14px);
  pointer-events: none;
}

.launch-pill {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin: 0 0 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(16px);
  font-weight: 800;
}

.glass-surface {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: opacity 0.26s ease-out, transform 0.18s ease, box-shadow 0.18s ease;
}

.glass-surface__filter {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
}

.glass-surface > :not(.glass-surface__filter) {
  position: relative;
  z-index: 1;
}

.liquid-weather-glass {
  --liquid-radius: 22px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--liquid-radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.1)),
    rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.7);
  box-shadow:
    inset 3px 3px 3px rgba(255, 255, 255, 0.44),
    inset -3px -3px 4px rgba(255, 255, 255, 0.24),
    0 18px 58px rgba(35, 52, 76, 0.14),
    0 0 32px rgba(255, 255, 255, 0.14);
}

.liquid-weather-glass::before,
.liquid-weather-glass::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

.liquid-weather-glass::before {
  z-index: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.36), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.08);
  opacity: 0.88;
}

.liquid-weather-glass::after {
  z-index: 2;
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 255, 255, 0.5), transparent 30%),
    radial-gradient(circle at 84% 18%, rgba(255, 255, 255, 0.2), transparent 26%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.22), transparent 43%, rgba(36, 120, 255, 0.08));
  box-shadow:
    inset 1px 1px 1px rgba(255, 255, 255, 0.56),
    inset -2px -2px 3px rgba(255, 255, 255, 0.28);
  opacity: 0.95;
}

.liquid-weather-glass > :not(.glass-surface__filter) {
  position: relative;
  z-index: 3;
}

.instrument-card-copy.liquid-weather-glass,
.feature-card.liquid-weather-glass,
.vision-board.liquid-weather-glass,
.beta-card.liquid-weather-glass {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transform: translateZ(0);
}

.landing-nav.glass-surface {
  position: fixed;
}

.hero-preview.glass-surface {
  position: absolute;
}

.landing-nav.glass-surface--svg {
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(35, 24, 52, var(--glass-frost, 0.28));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.22) inset,
    0 0 20px 5px rgba(255, 255, 255, 0.07) inset,
    0 18px 60px rgba(21, 11, 34, 0.34),
    0 8px 24px rgba(17, 17, 26, 0.12) inset;
  backdrop-filter: blur(18px) var(--glass-filter-id) saturate(var(--glass-saturation, 1.08));
  -webkit-backdrop-filter: blur(18px) var(--glass-filter-id) saturate(var(--glass-saturation, 1.08));
}

.launch-pill.glass-surface--svg {
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, var(--glass-frost, 0.14));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.26) inset,
    0 0 14px 4px rgba(255, 255, 255, 0.08) inset,
    0 12px 34px rgba(20, 11, 28, 0.24),
    0 4px 16px rgba(17, 17, 26, 0.08) inset;
  backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.55));
  -webkit-backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.55));
}

.hero-actions .primary-action.glass-surface--svg {
  border: 1px solid rgba(255, 255, 255, 0.58);
  color: #171322;
  background: rgba(255, 255, 255, var(--glass-frost, 0.86));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.34) inset,
    0 0 12px 4px rgba(255, 255, 255, 0.11) inset,
    0 14px 34px rgba(20, 11, 28, 0.16);
  backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.18));
  -webkit-backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.18));
}

.hero-actions .secondary-action.glass-surface--svg {
  border-color: rgba(255, 255, 255, 0.36);
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, var(--glass-frost, 0.14));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.24) inset,
    0 0 14px 4px rgba(255, 255, 255, 0.08) inset,
    0 12px 30px rgba(20, 11, 28, 0.2);
  backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.32));
  -webkit-backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.32));
}

.hero-preview.glass-surface--svg {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, var(--glass-frost, 0.2));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.28) inset,
    0 0 18px 4px rgba(255, 255, 255, 0.08) inset,
    0 24px 80px rgba(24, 20, 48, 0.24),
    0 8px 24px rgba(17, 17, 26, 0.08) inset;
  backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.34));
  -webkit-backdrop-filter: var(--glass-filter-id) saturate(var(--glass-saturation, 1.34));
}

.instrument-card-copy.glass-surface--svg,
.feature-card.glass-surface--svg,
.vision-board.glass-surface--svg,
.beta-card.glass-surface--svg {
  border: 1px solid rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, var(--glass-frost, 0.3));
  box-shadow:
    0 0 2px 1px rgba(255, 255, 255, 0.3) inset,
    0 0 18px 5px rgba(255, 255, 255, 0.11) inset,
    0 22px 70px rgba(38, 55, 84, 0.12),
    0 8px 24px rgba(17, 17, 26, 0.05) inset;
  backdrop-filter: blur(16px) var(--glass-filter-id) saturate(var(--glass-saturation, 1.28));
  -webkit-backdrop-filter: blur(16px) var(--glass-filter-id) saturate(var(--glass-saturation, 1.28));
}

.landing-nav.glass-surface--fallback,
.launch-pill.glass-surface--fallback,
.hero-actions .primary-action.glass-surface--fallback,
.hero-actions .secondary-action.glass-surface--fallback,
.hero-preview.glass-surface--fallback,
.instrument-card-copy.glass-surface--fallback,
.feature-card.glass-surface--fallback,
.vision-board.glass-surface--fallback,
.beta-card.glass-surface--fallback {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow:
    0 8px 32px rgba(31, 38, 135, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    inset 0 -1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px) saturate(1.8) brightness(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.8) brightness(1.1);
}

.launch-pill span {
  border-radius: 999px;
  padding: 5px 9px;
  color: #261329;
  background: #fff;
  font-size: 12px;
}

.hero-content h1 {
  margin: 0 auto;
  max-width: 900px;
  font-size: clamp(48px, 7vw, 86px);
  line-height: 0.96;
  letter-spacing: -0.045em;
  text-shadow: 0 6px 26px rgba(20, 11, 28, 0.52);
  text-wrap: balance;
}

.hero-copy {
  max-width: 720px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 19px;
  line-height: 1.7;
  text-shadow: 0 3px 18px rgba(20, 11, 28, 0.78);
}

.hero-actions,
.beta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 34px;
}

.primary-action,
.secondary-action,
.ghost-action {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 14px 22px;
  font-weight: 900;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.primary-action {
  color: #171322;
  background: #fff;
}

.secondary-action,
.ghost-action {
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.1);
}

.hero-preview {
  position: absolute;
  right: max(34px, calc((100vw - 1120px) / 2));
  bottom: 38px;
  z-index: 3;
  width: 260px;
  color: #fff;
}

.glass-panel {
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 24px 80px rgba(24, 20, 48, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(20px) saturate(1.25);
}

.hero-preview span,
.hero-preview small {
  color: rgba(255, 255, 255, 0.62);
}

.hero-preview strong {
  display: block;
  margin: 5px 0 14px;
  font-size: 20px;
}

.preview-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  height: 86px;
  align-items: end;
  margin: 8px 0 12px;
}

.preview-bars i {
  display: block;
  height: var(--h);
  border-radius: 999px 999px 8px 8px;
  background: linear-gradient(180deg, #fff, #ff65b7 42%, #7268ff);
  box-shadow: 0 0 24px rgba(255, 101, 183, 0.42);
}

.page-section {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 110px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading h2,
.vision-copy h2,
.beta-card h2 {
  margin: 9px 0 12px;
  color: var(--ink);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.section-heading p,
.vision-copy p,
.beta-card p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.instrument-grid,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.instrument-grid {
  align-items: start;
  gap: clamp(22px, 3vw, 42px);
}

.instrument-card,
.feature-card,
.vision-board,
.beta-card {
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: var(--radius);
  background: var(--glass);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px) saturate(1.18);
}

.instrument-card {
  position: relative;
  display: grid;
  min-height: auto;
  align-content: start;
  grid-template-rows: minmax(460px, 56vh) auto;
  gap: 24px;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  text-decoration: none;
  transition: transform 0.22s ease;
}

.instrument-card::before {
  content: none;
}

.instrument-card::after {
  content: none;
}

.instrument-card:hover {
  transform: translateY(-8px);
}

.instrument-art {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: clamp(460px, 56vh, 680px);
  overflow: visible;
  border-radius: 0;
  background: transparent;
  isolation: auto;
  place-items: end center;
}

.instrument-art::before {
  content: none;
}

.instrument-art::after {
  content: "";
  position: absolute;
  right: 8%;
  bottom: 4%;
  left: 8%;
  z-index: -1;
  height: 30%;
  border-radius: 999px;
  background: radial-gradient(ellipse at center, rgba(22, 31, 47, 0.2), transparent 68%);
  opacity: 0.85;
  pointer-events: none;
}

.instrument-art img {
  position: relative;
  z-index: 0;
  width: min(118%, 32vw);
  max-width: none;
  height: min(64vh, 690px);
  object-fit: contain;
  transform: translateY(0);
  transition: transform 0.45s ease;
}

.instrument-card--bass .instrument-art img {
  transform: translateY(0);
}

.instrument-card--piano .instrument-art img {
  transform: translateY(0);
}

.instrument-card:hover .instrument-art img {
  transform: translateY(-10px) scale(1.025);
}

.instrument-card--bass:hover .instrument-art img {
  transform: translateY(-10px) scale(1.025);
}

.instrument-card--piano:hover .instrument-art img {
  transform: translateY(-10px) scale(1.025);
}

.instrument-card-copy {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 12px;
  align-self: start;
  border-radius: 22px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.36);
}

.instrument-card h3,
.feature-card h3 {
  margin: 0;
  font-size: 26px;
}

.instrument-card p,
.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.instrument-card small {
  color: #536987;
  line-height: 1.5;
}

.instrument-card strong {
  margin-top: auto;
  color: var(--blue);
}

.gradual-blur {
  position: absolute;
  inset: auto 0 0;
  z-index: 2;
  height: 42%;
  pointer-events: none;
  isolation: isolate;
}

.instrument-art .gradual-blur {
  display: none;
}

.gradual-blur-inner {
  position: relative;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.gradual-blur-inner > div {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card {
  display: grid;
  gap: 10px;
  min-height: 210px;
  padding: 22px;
}

.feature-card span {
  color: rgba(36, 120, 255, 0.54);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.feature-card a {
  width: fit-content;
  margin-top: auto;
  border: 1px solid rgba(36, 120, 255, 0.2);
  border-radius: 999px;
  padding: 9px 13px;
  color: var(--blue);
  background: rgba(231, 241, 255, 0.68);
  font-weight: 900;
}

.vision-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 22px;
  align-items: center;
}

.vision-copy {
  padding-right: 20px;
}

.vision-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
}

.vision-board div {
  min-height: 112px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.58);
}

.vision-board span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.vision-board strong {
  display: block;
  margin-top: 12px;
  font-size: 22px;
}

.beta-section {
  padding-bottom: 130px;
}

.beta-card {
  max-width: 920px;
  margin: 0 auto;
  padding: 42px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(234, 243, 255, 0.72)),
    radial-gradient(circle at 18% 8%, rgba(240, 90, 168, 0.18), transparent 34%);
}

.beta-card .secondary-action,
.beta-card .ghost-action {
  border-color: rgba(36, 120, 255, 0.18);
  color: var(--blue);
  background: rgba(255, 255, 255, 0.66);
}

.beta-card .primary-action {
  color: #fff;
  background: linear-gradient(180deg, #5fa2ff, #1768ee);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 920px) {
  .landing-nav {
    grid-template-columns: 1fr auto;
  }

  .landing-nav nav {
    display: none;
  }

  .hero-section {
    min-height: 860px;
  }

  .hero-preview {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(420px, calc(100vw - 40px));
    margin-top: 34px;
  }

  .hero-preview.glass-surface {
    position: relative;
  }

  .instrument-grid,
  .feature-grid,
  .vision-section {
    grid-template-columns: 1fr;
  }

  .instrument-card {
    min-height: auto;
  }

  .instrument-art {
    min-height: clamp(320px, 58vw, 460px);
  }
}

@media (max-width: 620px) {
  .landing-nav {
    top: 10px;
    width: calc(100vw - 20px);
    gap: 10px;
  }

  .landing-brand span:last-child {
    font-size: 14px;
  }

  .brand-orb {
    width: 36px;
    height: 36px;
  }

  .nav-cta {
    padding: 9px 11px;
    font-size: 13px;
  }

  .hero-section {
    padding: 118px 18px 70px;
  }

  .hero-content h1 {
    font-size: 44px;
  }

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

  .page-section {
    width: min(100vw - 28px, 1180px);
    padding: 78px 0;
  }

  .instrument-grid {
    gap: 14px;
  }

  .instrument-art {
    min-height: 300px;
  }

  .instrument-card-copy {
    padding: 20px;
  }

  .beta-card {
    padding: 28px 18px;
  }
}

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

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