* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #0f1419;
  color: #e7ecf1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.page {
  width: 100%;
  max-width: 440px;
  text-align: center;
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0 0 28px;
  color: #9aa7b5;
  font-size: 0.95rem;
  line-height: 1.5;
}

.card {
  background: #121820;
  border: 1px solid #2a3440;
  border-radius: 16px;
  padding: 28px 24px;
}

.card p {
  margin: 0 0 20px;
  color: #b8c5d3;
  font-size: 0.9rem;
  line-height: 1.55;
  text-align: left;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 12px;
  background: #3b82f6;
  color: #fff;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: #2563eb;
}

.btn-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-secondary {
  display: block;
  width: 100%;
  padding: 12px 20px;
  border: 1px solid #2a3440;
  border-radius: 12px;
  background: #171d24;
  color: #e7ecf1;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.btn-secondary:hover {
  background: #1f2933;
  border-color: #3b82f6;
}

.apk-note {
  margin: 10px 0 0;
  font-size: 0.78rem;
  color: #9aa7b5;
  text-align: center;
}

.hints {
  margin-top: 20px;
  padding: 0;
  list-style: none;
  text-align: left;
}

.hints li {
  position: relative;
  padding-left: 1.1em;
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: #9aa7b5;
  line-height: 1.45;
}

.hints li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: #3b82f6;
}

.footer {
  margin-top: 24px;
  font-size: 0.78rem;
  color: #6b7280;
}