/* =============================================
   Age Gate — White Minimal
   age-gate-white.css
   ============================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --white:   #ffffff;
  --off:     #f9f7f5;
  --black:   #1a1a1a;
  --gray:    #888;
  --border:  #e0dbd5;
  --accent:  #1a1a1a;
}

html, body {
  height: 100%;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300;
  background: var(--white);
  color: var(--black);
}

/* ---- Age Gate ---- */
.age-gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
}

.age-gate--exit {
  animation: fadeOut 0.7s ease forwards;
}

@keyframes fadeOut {
  to { opacity: 0; }
}

.age-gate--shake {
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(8px); }
  60%       { transform: translateX(-5px); }
  80%       { transform: translateX(5px); }
}

/* ---- Inner box ---- */
.age-gate__inner {
  text-align: center;
  padding: 4rem 3rem;
  max-width: 480px;
  width: 90%;
  animation: fadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Brand ---- */
.age-gate__brand {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem;
  letter-spacing: 0.55em;
  color: var(--black);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.age-gate__line {
  width: 32px;
  height: 1px;
  background: var(--border);
  margin: 0 auto 2.5rem;
}

/* ---- Title ---- */
.age-gate__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.4;
  color: var(--black);
  margin-bottom: 1.8rem;
}

.age-gate__title em {
  font-style: italic;
  font-weight: 300;
}

/* ---- Body ---- */
.age-gate__body {
  font-size: 0.75rem;
  line-height: 2;
  color: var(--gray);
  letter-spacing: 0.05em;
  margin-bottom: 3rem;
}

/* ---- Buttons ---- */
.age-gate__buttons {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.age-gate__btn {
  width: 100%;
  max-width: 300px;
  padding: 0.95rem 1.5rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, transform 0.2s;
  border: 1px solid var(--border);
}

/* Yes */
.age-gate__btn--yes {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.age-gate__btn--yes:hover {
  background: #333;
  transform: translateY(-1px);
}

/* No */
.age-gate__btn--no {
  background: transparent;
  color: var(--gray);
  border-color: var(--border);
}

.age-gate__btn--no:hover {
  color: var(--black);
  border-color: #bbb;
}

/* ---- Legal ---- */
.age-gate__law {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: #bbb;
}

/* ---- Site iframe ---- */
.site-frame {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

.site-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.site-frame.hidden {
  display: none;
}