:root {
  --uvg-brand: #0B4F8C;
  --uvg-gold: #d4a853;
  --uvg-gold-light: #e8c878;
  --uvg-bg: #0a0a2e;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: #fff;
  background: var(--uvg-bg);
  overflow-x: hidden;
}

.uvg-install-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.uvg-install-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
}

.uvg-install-orb--1 {
  width: 280px;
  height: 280px;
  background: #1a3a7a;
  top: -80px;
  left: -60px;
}

.uvg-install-orb--2 {
  width: 320px;
  height: 320px;
  background: #4a2a7a;
  bottom: -100px;
  right: -80px;
}

.uvg-install-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}

.uvg-install-page {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(20px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
}

.uvg-install-card {
  width: 100%;
  max-width: 440px;
  padding: 32px 24px 28px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}

.uvg-install-brand {
  text-align: center;
  margin-bottom: 22px;
}

.uvg-install-brand img {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.uvg-install-tag {
  margin: 12px 0 0;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  font-weight: 700;
}

.uvg-install-header h1 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.25;
  text-align: center;
}

.uvg-install-header p {
  margin: 0 0 24px;
  text-align: center;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  line-height: 1.55;
}

.uvg-install-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: 14px;
  cursor: pointer;
  text-align: left;
  color: #1a1208;
  background: linear-gradient(135deg, var(--uvg-gold-light) 0%, var(--uvg-gold) 100%);
  border: 1px solid rgba(212, 168, 83, 0.6);
  box-shadow: 0 8px 22px rgba(212, 168, 83, 0.28);
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

.uvg-install-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(212, 168, 83, 0.4);
  filter: brightness(1.03);
}

.uvg-install-btn:active { transform: translateY(0); }

.uvg-install-btn__ic {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(26, 18, 8, 0.22);
}

.uvg-install-btn__ic img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.uvg-install-btn__txt {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.uvg-install-btn__txt strong { font-size: 0.96em; font-weight: 800; }
.uvg-install-btn__txt small { font-size: 0.78em; opacity: 0.72; font-weight: 600; }

.uvg-install-btn.is-installed {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: #fff;
  box-shadow: none;
  cursor: default;
}

.uvg-install-btn.is-installed .uvg-install-btn__ic {
  background: rgba(76, 175, 80, 0.9);
}

.uvg-install-help {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.82em;
  line-height: 1.55;
}

.uvg-install-help i { color: var(--uvg-gold); margin-right: 6px; }
.uvg-install-help strong { color: #fff; font-weight: 700; }

.uvg-install-share {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.uvg-install-share h2 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  font-weight: 700;
}

.uvg-install-share > p {
  margin: 0 0 12px;
  font-size: 0.82rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.65);
}

.uvg-install-share-row {
  display: flex;
  gap: 8px;
}

.uvg-install-share-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.25);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.78rem;
}

.uvg-install-share-copy {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font: 600 0.82rem/1 system-ui, sans-serif;
  transition: background 0.15s;
}

.uvg-install-share-copy:hover { background: rgba(255, 255, 255, 0.16); }
.uvg-install-share-copy.is-copied { background: rgba(76, 175, 80, 0.35); }

.uvg-install-share-hint {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: #86efac;
}

.uvg-install-footer {
  margin-top: 24px;
  text-align: center;
}

.uvg-install-footer p {
  margin: 0 0 8px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

.uvg-install-login {
  color: var(--uvg-gold-light);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.9rem;
}

.uvg-install-login:hover { text-decoration: underline; }

@media (max-width: 480px) {
  .uvg-install-card { padding: 28px 18px 24px; }
  .uvg-install-share-row { flex-direction: column; }
  .uvg-install-share-copy { justify-content: center; }
}