/* サイト告知モーダル（2026-05 アップデート） */

.site-announce {
  display: none;
  position: fixed;
  inset: 0;
  /* m_modalBg(10000) より前面に（告知が背面に隠れないように） */
  z-index: 10500;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background-color: rgba(15, 23, 42, 0.68);
  backdrop-filter: blur(4px);
}

.site-announce.is-open {
  display: flex !important;
  visibility: visible;
  opacity: 1;
  animation: site-announce-backdrop-in 0.32s ease;
}

@keyframes site-announce-backdrop-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.site-announce-dialog {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: min(90vh, 700px);
  overflow: auto;
  background: linear-gradient(
    168deg,
    var(--color-surface, #fff) 0%,
    var(--color-brand-soft, #f8fbff) 48%,
    #f3f8ff 100%
  );
  border: 1px solid var(--color-border, #c5d9f5);
  border-radius: var(--radius-lg, 16px);
  box-shadow:
    0 4px 6px rgba(26, 63, 110, 0.06),
    0 24px 56px rgba(26, 91, 180, 0.22),
    0 0 0 1px rgba(255, 255, 255, 0.6) inset;
  padding: 36px 30px 28px;
  animation: site-announce-in 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-announce-accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  border-radius: var(--radius-lg, 16px) var(--radius-lg, 16px) 0 0;
  background: linear-gradient(
    90deg,
    var(--color-brand, #1a5fb4) 0%,
    var(--color-brand-light, #227be7) 45%,
    var(--color-accent, #c62828) 100%
  );
  pointer-events: none;
}

@keyframes site-announce-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-announce.is-open {
    animation: none;
  }

  .site-announce-dialog {
    animation: none;
  }
}

.site-announce-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 1;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: var(--color-brand-soft, #eef4ff);
  color: var(--color-brand, #1a3d6e);
  font-size: 1.875rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.site-announce-close:hover {
  background: #dce8fa;
  transform: scale(1.04);
}

.site-announce-close:focus-visible {
  outline: 3px solid var(--color-brand-light, #227be7);
  outline-offset: 2px;
}

.site-announce-header {
  margin-bottom: 4px;
}

.site-announce-badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: linear-gradient(
    135deg,
    var(--color-brand-light, #227be7) 0%,
    var(--color-brand, #1a5fb4) 100%
  );
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  box-shadow: 0 4px 14px rgba(26, 91, 180, 0.35);
}

.site-announce-meta {
  margin: 0 0 10px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-muted, #5c6370);
  letter-spacing: 0.02em;
}

.site-announce-title {
  margin: 0 2.8rem 0 0;
  font-size: 2.125rem;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--color-text, #1a1a2e);
  background: linear-gradient(
    135deg,
    #0f2d52 0%,
    var(--color-brand, #1a5fb4) 55%,
    #1a3d6e 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@supports not (background-clip: text) {
  .site-announce-title {
    color: var(--color-brand, #1a3d6e);
    background: none;
    -webkit-text-fill-color: inherit;
  }
}

.site-announce-lead {
  margin: 16px 0 18px;
  font-size: 1.375rem;
  color: var(--color-text-muted, #5c6370);
  line-height: 1.65;
}

.site-announce-list {
  margin: 0 0 22px;
  padding: 14px 16px;
  list-style: none;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--color-border, #d8e2ef);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(26, 50, 90, 0.06));
}

.site-announce-list li {
  position: relative;
  padding: 0.65em 0 0.65em 2.1em;
  font-size: 1.375rem;
  color: var(--color-text, #334155);
  line-height: 1.6;
  border-bottom: 1px solid var(--color-brand-soft, #e8f1fc);
}

.site-announce-list li:last-child {
  border-bottom: none;
}

.site-announce-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 1.35em;
  height: 1.35em;
  border-radius: 50%;
  background: var(--color-brand-soft, #e8f1fc);
  box-shadow: inset 0 0 0 1px rgba(26, 91, 180, 0.15);
}

.site-announce-list li::after {
  content: "";
  position: absolute;
  left: 0.42em;
  top: 1.22em;
  width: 0.5em;
  height: 0.28em;
  border-left: 2.5px solid var(--color-brand, #1a5fb4);
  border-bottom: 2.5px solid var(--color-brand, #1a5fb4);
  transform: rotate(-45deg);
}

.site-announce-actions {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.site-announce-btn {
  flex: 1 1 calc(50% - 6px);
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 14px 16px;
  border-radius: var(--radius-md, 12px);
  font-weight: 700;
  font-size: 1.3125rem;
  line-height: 1.35;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.15s ease;
}

.site-announce-btn:focus-visible {
  outline: 3px solid var(--color-brand-light, #227be7);
  outline-offset: 2px;
}

.site-announce-btn--primary {
  background: linear-gradient(
    135deg,
    var(--color-brand-light, #227be7) 0%,
    var(--color-brand, #1a5fb4) 100%
  );
  color: #fff !important;
  box-shadow: 0 6px 18px rgba(26, 91, 180, 0.32);
}

.site-announce-btn--primary:hover {
  background: linear-gradient(135deg, #3d8fd9 0%, var(--color-brand-light, #227be7) 100%);
  color: #fff !important;
  box-shadow: 0 8px 22px rgba(26, 91, 180, 0.38);
  transform: translateY(-2px);
}

.site-announce-btn--secondary {
  background: var(--color-surface, #fff);
  color: var(--color-brand, #1a5fb4) !important;
  border-color: var(--color-brand, #1a5fb4);
  box-shadow: var(--shadow-sm, 0 1px 3px rgba(26, 50, 90, 0.06));
}

.site-announce-btn--secondary:hover {
  background: var(--color-brand-soft, #f0f6ff);
  transform: translateY(-1px);
}

.site-announce-btn--numbers {
  color: var(--color-accent, #c62828) !important;
  border-color: var(--color-accent, #c62828);
  background: linear-gradient(
    135deg,
    var(--color-accent-soft, #fff8f6) 0%,
    var(--color-surface, #fff) 100%
  );
}

.site-announce-btn--numbers:hover {
  background: var(--color-accent-soft, #ffebee);
  box-shadow: 0 4px 14px rgba(198, 40, 40, 0.18);
  transform: translateY(-2px);
}

.site-announce-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border, #e8f1fc);
}

.site-announce-link {
  font-size: 1.3125rem;
  font-weight: 600;
  color: var(--color-brand, #1a5fb4);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.site-announce-link:hover {
  color: var(--color-brand-light, #227be7);
}

.site-announce-link:focus-visible {
  outline: 3px solid var(--color-brand-light, #227be7);
  outline-offset: 2px;
  border-radius: 4px;
}

.site-announce-dismiss label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  color: var(--color-text-muted, #6b7280);
  cursor: pointer;
  margin: 0;
}

.site-announce-dismiss input {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--color-brand, #1a5fb4);
}

.site-announce-dismiss input:focus-visible {
  outline: 3px solid var(--color-brand-light, #227be7);
  outline-offset: 2px;
}

body.site-announce-open {
  overflow: hidden;
}

@media (max-width: 420px) {
  .site-announce-actions {
    flex-direction: column;
  }

  .site-announce-btn {
    flex: 1 1 auto;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .site-announce-dialog {
    padding: 28px 20px 22px;
  }

  .site-announce-title {
    font-size: 1.875rem;
  }
}