@charset "UTF-8";
@import url("https://fonts.googleapis.com/css2?family=Righteous&family=Zen+Kaku+Gothic+New&display=swap");
/*－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

REVERSE GATE（ワンクッション・年齢確認ページ用）

 gate.html と同じ作りで、配色だけ反転したもの。
   #262D40（紺）⇔ #D2D9E1（薄いグレー）、背景は黒（#0B0D13）

－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－*/
html {
  font-size: 62.5%;
  background-color: #0B0D13;
}

body {
  font-family: "Zen Kaku Gothic New", YuGothic, "Yu Gothic medium", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 1.6rem;
  color: #D2D9E1;
  letter-spacing: 2px;
  line-height: 1.8;
  background-color: #0B0D13;
  min-height: 100svh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
}

.gate {
  max-width: 640px;
  width: 100%;
}

.gate__title {
  font-family: "Righteous", "Zen Kaku Gothic New", sans-serif;
  font-size: clamp(4rem, 3.2rem + 4vw, 7rem);
  font-weight: normal;
  letter-spacing: 4px;
  line-height: 1;
  text-transform: uppercase;
  -webkit-text-stroke: 2px #D2D9E1;
  text-stroke: 2px #D2D9E1;
  color: transparent;
  margin-bottom: 20px;
}

.gate__sub {
  font-family: "Righteous", "Zen Kaku Gothic New", sans-serif;
  font-size: 1.4rem;
  font-weight: normal;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 60px;
  padding-left: 4px;
}

.gate__section {
  position: relative;
  margin-bottom: 40px;
  padding: 30px 0;
  border-top: 2px solid #D2D9E1;
}

.gate__heading {
  font-family: "Righteous", "Zen Kaku Gothic New", sans-serif;
  font-size: 2rem;
  font-weight: normal;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.gate__text {
  margin: 16px 0;
  letter-spacing: 1px;
  text-align: justify;
  font-size: 1.4rem;
}

.gate__list {
  margin: 20px 0;
}

.gate__list li {
  position: relative;
  margin-left: 20px;
  margin-bottom: 12px;
  font-size: 1.4rem;
  letter-spacing: 1px;
  line-height: 1.8;
}

.gate__list li::before {
  position: absolute;
  top: calc(0.9em - 4px);
  left: -20px;
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  background-color: #D2D9E1;
  border-radius: 50%;
}

.gate__actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 2px solid #D2D9E1;
}

.gate__proceed {
  display: block;
  background-color: #D2D9E1;
  color: #0B0D13;
  font: inherit;
  text-align: center;
  text-decoration: none;
  padding: 12px 40px;
  border: 2px solid #D2D9E1;
  letter-spacing: 2px;
  font-size: 1.4rem;
  transition: 0.2s;
  width: 100%;
  max-width: 360px;
  cursor: pointer;
}

.gate__proceed:hover {
  background-color: #0B0D13;
  color: #D2D9E1;
}

.gate__back {
  display: block;
  text-align: center;
  text-decoration: none;
  color: #D2D9E1;
  font-size: 1.3rem;
  letter-spacing: 1px;
  padding: 8px 20px;
  position: relative;
}

.gate__back::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  transform: translateX(-50%);
  border-bottom: 1px solid #D2D9E1;
  width: 0%;
  transition: 0.3s;
}

@media (hover: hover) {
  .gate__back:hover::after {
    width: 80%;
  }
}

.gate__note {
  font-size: 1.2rem;
  letter-spacing: 1px;
  margin-top: 40px;
  text-align: right;
}

/*－－－－－－－－－－ 合言葉の入力欄（年齢確認ページ） －－－－－－－－－－*/
.gate__form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.gate__input {
  width: 100%;
  max-width: 360px;
  padding: 10px 16px;
  font: inherit;
  font-size: 1.4rem;
  letter-spacing: 2px;
  text-align: center;
  color: #D2D9E1;
  background-color: #161A24;
  border: 1px solid #262D40;
}
.gate__input:focus {
  outline: none;
  border-color: #D2D9E1;
}

.gate__message {
  min-height: 1.8em;
  font-size: 1.3rem;
  letter-spacing: 1px;
}

@media screen and (max-width: 520px) {
  body {
    font-size: 1.4rem;
    padding: 30px 16px;
    align-items: flex-start;
  }

  .gate__title {
    -webkit-text-stroke: 1.5px #D2D9E1;
  }

  .gate__sub {
    margin-bottom: 40px;
  }

  .gate__section {
    padding: 20px 0;
    margin-bottom: 30px;
  }

  .gate__actions {
    margin-top: 40px;
  }
}