/* ===================================
   ウェルカムページ スタイル
   =================================== */

.welcome-page {
  position: relative;
  width: 100vw;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 56px 14px calc(26px + env(safe-area-inset-bottom, 0px));
  background-image: url('../asset/welcome.png');
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
  overflow: hidden;
}

.welcome-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.12) 0%, rgba(0, 0, 0, 0.22) 44%, rgba(0, 0, 0, 0.16) 100%);
  z-index: 1;
}

.welcome-animation {
  position: relative;
  z-index: 2;
  text-align: left;
  color: var(--text-light);
  width: 100%;
  padding: 12px 2px 0;
}

.welcome-greeting {
  margin: 0 0 2px;
  font-size: 28px;
  font-weight: 500;
  color: var(--text-light);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.welcome-main-title {
  margin: 0;
  font-size: 48px;
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-light);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.welcome-description {
  margin: 8px 0 0;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 500;
  color: var(--text-light);
  opacity: 0.98;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.welcome-spacer {
  height: 52vh;
}

/* 言語選択コンテナ */
.language-selector-container {
  position: absolute;
  left: 30px;
  bottom: calc(25% + env(safe-area-inset-bottom, 0px));
  /* continue-container(z-index:4)より高くしてドロップダウンが前面に来るようにする */
  z-index: 20;
}

.language-selector-button {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 6px 12px;
  background-color: rgba(255, 255, 255, 0.92);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--base-secondary, #008883);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
  transition: background-color var(--transition-fast);
}

.lang-globe-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-color: var(--text-primary, #333);
  -webkit-mask-image: url('../material/icons/language.svg');
  mask-image: url('../material/icons/language.svg');
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  flex-shrink: 0;
}

.language-selector-dropdown {
  position: absolute;
  bottom: 100%;
  margin-bottom: 6px;
  left: 0;
  min-width: 120px;
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: var(--z-dropdown);
}

.language-option {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  font-size: var(--font-size-md);
  color: var(--text-primary);
  transition: background-color var(--transition-fast);
}

.language-option:hover {
  background-color: var(--bg-secondary);
}

.language-option.active {
  background-color: var(--base-secondary, #008883);
  color: var(--text-light);
}

/* ページインジケーター */
.welcome-page .page-indicator {
  position: absolute;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 4;
}

.welcome-page .page-indicator-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.55);
  transition: all var(--transition-fast);
}

.welcome-page .page-indicator-dot.active {
  width: 16px;
  border-radius: 999px;
  background-color: rgba(255, 255, 255, 0.98);
}

/* 続けるボタンコンテナ */
.continue-container {
  position: absolute;
  left: 30px;
  right: 30px;
  bottom: calc(15% + env(safe-area-inset-bottom, 0px));
  z-index: 4;
}

.continue-button {
  width: 100%;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 24px;
  background-color: var(--base-secondary, #008883);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(30, 80, 60, 0.38);
  transition: all var(--transition-fast);
}

.continue-button:hover {
  background-color: var(--base-dark, #00514E);
}

.continue-button:active {
  transform: translateY(1px);
  background-color: var(--base-dark, #00514E);
}

@media (min-width: 768px) {
  .welcome-page {
    max-width: 430px;
    margin: 0 auto;
    min-height: 100dvh;
  }

  .welcome-main-title {
    font-size: 60px;
  }
}