:root {
  --bg: #070c16;
  --bg-2: #0d1524;
  --card: #121b2d;
  --card-2: #182338;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4f7fb;
  --muted: #8b97ad;
  --blue: #3d8bff;
  --blue-2: #5aa2ff;
  --danger: #ff6b7a;
  --ok: #3dd68c;
  --radius: 18px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
}
body {
  padding: 0 0 calc(76px + env(safe-area-inset-bottom));
}
#app { max-width: 720px; margin: 0 auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 14px 16px 12px;
  background: linear-gradient(#070c16, rgba(7, 12, 22, 0.92));
  backdrop-filter: blur(16px);
}
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.brand {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0;
}
.lang-switch {
  display: flex;
  gap: 4px;
  background: var(--card);
  border-radius: 10px;
  padding: 3px;
}
.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 8px;
}
.lang-switch button.active {
  background: #1b2740;
  color: var(--text);
}
.search-wrap input {
  width: 100%;
  border: 0;
  outline: none;
  border-radius: 14px;
  background: var(--card);
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
}

.section-title {
  margin: 8px 16px 12px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 16px 20px;
}

.card {
  background: linear-gradient(180deg, var(--card-2), var(--card));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 210px;
  padding: 16px 14px 14px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
}
.card-logo {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.card-logo img {
  max-height: 64px;
  max-width: 64px;
  object-fit: contain;
}
.card-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.25;
  min-height: 32px;
}
.card-meta {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  display: flex;
  gap: 6px;
  align-items: center;
}
.card-desc {
  margin-top: 8px;
  color: #c5cedd;
  font-size: 11px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.card-price {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}
.card-price b {
  color: var(--blue);
  font-size: 18px;
  font-weight: 800;
}

.back {
  margin: 0 16px 12px;
  background: none;
  border: 0;
  color: var(--blue-2);
  font-size: 15px;
  padding: 0;
}
.hero {
  margin: 0 16px 16px;
  background: var(--card);
  border-radius: 20px;
  padding: 20px;
  text-align: center;
  border: 1px solid var(--line);
}
.hero img { max-height: 72px; }
.hero h1 { margin: 12px 0 6px; font-size: 20px; }
.hero p { margin: 0; color: var(--muted); font-size: 13px; }

.list { padding: 0 16px 24px; display: grid; gap: 10px; }
.row {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  cursor: pointer;
}
.row b { display: block; font-size: 14px; }
.row span { color: var(--muted); font-size: 12px; }
.price { color: var(--blue); font-weight: 800; white-space: nowrap; }

.panel {
  margin: 0 16px 16px;
  background: var(--card);
  border-radius: 18px;
  padding: 16px;
  border: 1px solid var(--line);
}
.panel h2 { margin: 0 0 10px; font-size: 16px; }
.desc { color: #d5deec; font-size: 13px; line-height: 1.5; }
.desc a { color: var(--blue-2); }
.field { margin-top: 12px; }
.field label { display: block; color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.field input, .field select {
  width: 100%;
  border: 0;
  border-radius: 12px;
  background: var(--bg-2);
  color: var(--text);
  padding: 12px;
  font-size: 15px;
}
.buy {
  width: calc(100% - 32px);
  margin: 8px 16px 24px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(180deg, #4b97ff, #2f78f0);
  color: white;
  font-size: 16px;
  font-weight: 700;
  padding: 16px;
}
.buy:disabled { opacity: 0.55; }
.pay-title {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.pay-methods {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}
.pay-method {
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--text);
  border-radius: 12px;
  padding: 12px;
  font-size: 14px;
  text-align: left;
}
.pay-method.active {
  border-color: var(--blue);
  background: #15243c;
}
.pay-stars {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}
.pay-stars b { color: var(--blue); }
.help-img { width: 100%; border-radius: 12px; margin-top: 10px; }
.codebox {
  background: var(--bg-2);
  border-radius: 12px;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  word-break: break-all;
  margin: 10px 0;
}
.status { font-size: 12px; color: var(--muted); }
.status.ok { color: var(--ok); }
.status.bad { color: var(--danger); }
.empty, .error, .loader {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}
.tabs {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(7, 12, 22, 0.94);
  border-top: 1px solid var(--line);
}
.tabs button {
  border: 0;
  border-radius: 14px;
  background: var(--card);
  color: var(--muted);
  padding: 12px;
  font-size: 14px;
}
.tabs button.active { color: var(--text); background: #1b2740; }