.phone-shell {
  width: min(480px, 100%);
  background: var(--surface);
  border-radius: 28px;
  border: 1px solid rgba(106, 109, 255, 0.15);
  box-shadow: var(--shadow);
  padding: 22px 18px 80px;
  position: relative;
  overflow: hidden;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, var(--accent), #98f1df);
  color: #0b1412;
  font-weight: 700;
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
}

.brand-sub {
  font-size: 12px;
  color: var(--muted);
}

.app-main {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 420px;
}

.sticky-run {
  position: absolute;
  bottom: 18px;
  left: 0;
  right: 0;
  padding: 0 20px;
}