body {
  font-family: "Noto Sans JP", sans-serif;
  background: #e8ffe8;
  color: #333;
  text-align: center;
  padding: 10px;
  font-size: 16px;
  letter-spacing: 0.5px;
}
@media (max-width: 768px) {
  body {
    font-size: 14px;
  }
}

header {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  margin-bottom: 12px;
}
header #logo {
  margin-left: 6px;
}
header #logo a {
  display: block;
  width: 80px;
}

.container {
  max-width: 400px;
  margin: 0 auto;
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}
@media (max-width: 768px) {
  .container {
    padding: 20px 10px 40px;
  }
}

h1 {
  font-size: 1.2rem;
  margin-bottom: 30px;
}
@media (max-width: 768px) {
  h1 {
    font-size: 1rem;
  }
}

.p-txt--green {
  color: #00B900;
}

.p-code {
  margin-bottom: 42px;
}
.p-code__txt {
  position: relative;
  font-size: 0.9rem;
  font-weight: 400;
  background: #00B900;
  color: #FFF;
  width: fit-content;
  margin: 0 auto -15px;
  padding: 4px 12px;
  border-radius: 50px;
  z-index: 10;
}
.p-code__copy-button {
  color: #00B900;
  background: #e6ffe6;
  border: 2px solid #00B900;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 15px 30px;
  cursor: pointer;
  border-radius: 10px;
  box-shadow: 3px 3px 0px rgba(0, 185, 0, 0.5);
}
@media (max-width: 768px) {
  .p-code__copy-button {
    font-size: 15px;
    padding: 22px 20px 14px;
  }
}
.p-code__copy-button:hover {
  background: #daffda;
}
.p-code__copied-message {
  font-size: 0.9rem;
  color: #00B900;
  display: none;
  position: absolute;
  width: fit-content;
  height: fit-content;
  right: 0;
  left: 0;
  margin: 0 auto;
}
.p-code__tooltip {
  position: relative;
  display: inline-block;
}
.p-code__tooltip-text {
  visibility: hidden;
  opacity: 0;
  width: max-content;
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  position: absolute;
  z-index: 10;
  bottom: -60%;
  left: 50%;
  transform: translateX(-50%);
  transition: opacity 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}
.p-code__tooltip:hover .p-code__tooltip-text {
  visibility: visible;
  opacity: 1;
}

.p-line-btn {
  font-family: LINESeedJP_OTF_Bd;
  background: #00B900;
  color: #FFF;
  font-size: 1.35rem;
  font-weight: bold;
  letter-spacing: 1px;
  padding: 15px 45px;
  border: none;
  border-radius: 30px;
  box-shadow: 2px 4px 6px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.25s ease;
}
.p-line-btn:hover {
  background: #04c404;
  transform: translateY(-4px);
  box-shadow: 2px 6px 10px rgba(0, 0, 0, 0.15);
}