:root {
  --bg-0: #060914;
  --bg-1: #0a1228;
  --panel: rgba(9, 17, 37, 0.82);
  --panel-border: rgba(98, 180, 255, 0.24);
  --text: #edf4ff;
  --muted: #9db2d5;
  --cyan: #34d7ff;
  --blue: #4d7fff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Outfit", sans-serif;
  color: var(--text);
  padding: clamp(14px, 2vw, 28px);
  background:
    radial-gradient(circle at 12% 0%, rgba(52, 215, 255, 0.2), transparent 35%),
    radial-gradient(circle at 90% 16%, rgba(77, 127, 255, 0.24), transparent 33%),
    linear-gradient(145deg, var(--bg-0), var(--bg-1));
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(95, 156, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95, 156, 255, 0.1) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 82%);
}

.mouse-glow {
  position: fixed;
  left: 0;
  top: 0;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transform: translate3d(-200px, -200px, 0);
  background: radial-gradient(circle,
    rgba(52, 215, 255, 0.38) 0%,
    rgba(93, 180, 255, 0.22) 24%,
    rgba(93, 180, 255, 0.08) 42%,
    rgba(93, 180, 255, 0.03) 58%,
    transparent 72%);
  filter: blur(18px);
  mix-blend-mode: screen;
  transition: opacity 0.35s ease;
}

.app {
  position: relative;
  z-index: 1;
  width: min(900px, 100%);
  margin: 0 auto;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.hero,
.download-panel,
.about-panel {
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(18px, 3vw, 28px);
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 18px);
  min-height: clamp(72px, 10vw, 96px);
}

.hero-icon {
  display: block;
  width: clamp(56px, 7vw, 76px);
  height: clamp(56px, 7vw, 76px);
  filter: drop-shadow(0 0 18px rgba(52, 215, 255, 0.28));
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 0.95;
  font-weight: 800;
  color: #f6fbff;
  letter-spacing: 0.01em;
}

.download-panel {
  padding: clamp(18px, 3vw, 24px);
  display: grid;
  gap: 14px;
}

.download-label {
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9eb5db;
}

.about-panel {
  padding: clamp(18px, 3vw, 24px);
  display: grid;
  gap: 14px;
  min-height: clamp(220px, 36vh, 440px);
}

.about-content {
  display: grid;
  place-items: center;
  min-height: clamp(160px, 30vh, 360px);
  border-radius: 16px;
  border: 1px dashed rgba(158, 181, 219, 0.38);
  background: rgba(4, 10, 24, 0.28);
  backdrop-filter: blur(18px) saturate(120%);
  padding: clamp(14px, 2vw, 18px);
  color: var(--text);
  line-height: 1.6;
  overflow: auto;
}

.about-locked {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: clamp(18px, 3vw, 28px);
  text-align: center;
}

.about-tag {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: none;
  color: #9eb5db;
}

.about-tag-caps {
  text-transform: uppercase;
}

.about-lock {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1;
  filter: drop-shadow(0 0 18px rgba(52, 215, 255, 0.22));
}

.about-soon {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #f6fbff;
  text-transform: none;
}

.latest {
  font-size: 1.28rem;
  font-weight: 700;
  color: #e7f8ff;
}

#downloadButton {
  text-decoration: none;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 58px;
  border-radius: 12px;
  border: 0;
  font-family: "Outfit", sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
  color: #04152d;
  background: linear-gradient(95deg, var(--cyan), #5bb4ff 58%, #88c7ff);
  box-shadow: 0 18px 30px rgba(52, 170, 255, 0.34);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

#downloadButton:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
  box-shadow: 0 20px 36px rgba(52, 170, 255, 0.44);
}

#downloadButton[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.62;
  filter: grayscale(0.18);
  box-shadow: none;
}

.hint {
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.92rem;
}

.footer-note {
  text-align: center;
  color: #7f98bf;
  font-size: clamp(0.8rem, 1.2vw, 0.9rem);
}

@media (max-width: 640px) {
  .hero-brand {
    gap: 10px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 10vw, 3rem);
  }

  #downloadButton {
    font-size: 0.98rem;
  }
}