:root {
  --bg0: #071612;
  --bg1: #0d2a22;
  --ink: #e8fff6;
  --muted: #9ecbb8;
  --line: rgba(30, 224, 162, 0.18);
  --accent: #1ee0a2;
  --accent-ink: #06241c;
  --danger: #ff6b6b;
  --card: rgba(10, 36, 30, 0.72);
  --radius: 22px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Sora", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg0);
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 10% -10%, rgba(30, 224, 162, 0.28), transparent 55%),
    radial-gradient(90% 70% at 110% 10%, rgba(56, 189, 248, 0.16), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 55%, #081a16);
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.05'/%3E%3C/svg%3E");
  opacity: 0.35;
  pointer-events: none;
}

.shell {
  width: min(560px, 100%);
  margin: 0 auto;
  padding: max(28px, env(safe-area-inset-top)) 20px 48px;
  display: grid;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  animation: rise 0.7s ease both;
}

.logo svg {
  display: block;
  filter: drop-shadow(0 10px 24px rgba(30, 224, 162, 0.35));
}

.brand-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent);
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 10vw, 3.2rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  font-weight: 800;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.5;
  max-width: 34ch;
  animation: rise 0.7s ease 0.08s both;
}

.apk-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 18px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--accent-ink);
  background: var(--accent);
  box-shadow: 0 16px 40px rgba(30, 224, 162, 0.28);
  animation: rise 0.7s ease 0.12s both;
}

.apk-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-top: 2px;
}

.apk-card em {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-size: 0.78rem;
  opacity: 0.72;
}

.apk-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(6, 36, 28, 0.14);
  font-size: 1.3rem;
  font-weight: 700;
}

.steps {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
  animation: rise 0.7s ease 0.16s both;
}

.web-fallback {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  animation: rise 0.7s ease 0.2s both;
}

.web-fallback summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 14px;
}

.form {
  display: grid;
  gap: 16px;
  animation: rise 0.7s ease 0.14s both;
}

.field {
  display: grid;
  gap: 8px;
}

.field > span {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  padding: 8px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

input[type="url"] {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  padding: 12px 10px;
}

input::placeholder {
  color: rgba(158, 203, 184, 0.55);
}

.ghost {
  border: 0;
  border-radius: 12px;
  padding: 0 14px;
  background: rgba(30, 224, 162, 0.12);
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: var(--radius);
  padding: 18px 16px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  display: grid;
  gap: 4px;
  transition: transform 0.18s ease, filter 0.18s ease, opacity 0.18s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.btn-kicker {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.75;
}

.btn strong {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 16px 40px rgba(30, 224, 162, 0.28);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  border: 1px solid var(--line);
}

.preview {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 14px;
  align-items: center;
  padding: 12px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  animation: rise 0.45s ease both;
}

.preview img {
  width: 112px;
  height: 72px;
  object-fit: cover;
  border-radius: 12px;
  background: #123;
}

.preview h2 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.25;
}

.preview p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.status {
  display: grid;
  gap: 10px;
  animation: rise 0.35s ease both;
}

.bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  width: 35%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: slide 1.1s ease-in-out infinite;
}

#status-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.error {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 107, 107, 0.12);
  color: #ffb4b4;
  border: 1px solid rgba(255, 107, 107, 0.28);
  font-size: 0.92rem;
}

.install {
  margin-top: 8px;
  padding: 16px;
  border-radius: 18px;
  border: 1px dashed var(--line);
  display: grid;
  gap: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.install p {
  margin: 0;
}

.install-btn {
  justify-self: center;
  background: var(--ink);
  color: var(--bg0);
  text-align: center;
  padding: 14px 22px;
  border-radius: 999px;
}

.hint {
  font-size: 0.78rem !important;
  opacity: 0.8;
}

.hint-line {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.hint-line a {
  color: var(--accent);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes slide {
  0% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(320%);
  }
}

@media (max-width: 420px) {
  .actions {
    grid-template-columns: 1fr;
  }
}