/* Responsibility: タイトル画面と共通テキストカード表現。
 * Rule: タイトル専用装飾と、画面カード内の見出し・導入テキストを管理する。
 */

#startScreen {
  background:
    radial-gradient(circle at 18% 20%, rgba(116,255,240,0.12), rgba(116,255,240,0) 32%),
    radial-gradient(circle at 82% 22%, rgba(255,112,218,0.12), rgba(255,112,218,0) 28%),
    linear-gradient(180deg, rgba(6, 10, 20, 0.72), rgba(3, 5, 10, 0.9));
}
.title-card {
  position: relative;
  overflow: hidden;
  padding: 34px 36px 36px;
  border: 1px solid rgba(255,255,255,0.1);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02) 42%, rgba(8,14,24,0.38) 100%),
    radial-gradient(circle at 0% 0%, rgba(116,255,240,0.08), rgba(116,255,240,0) 34%);
  box-shadow:
    0 32px 100px rgba(0,0,0,0.42),
    inset 0 1px 0 rgba(255,255,255,0.06);
}
.title-card::before,
.title-card::after {
  content: '';
  position: absolute;
  inset: auto;
  pointer-events: none;
}
.title-card::before {
  top: -72px;
  right: -48px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(116,255,240,0.18), rgba(116,255,240,0) 68%);
  filter: blur(10px);
}
.title-card::after {
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(116,255,240,0), rgba(116,255,240,0.4), rgba(255,112,218,0.36), rgba(116,255,240,0));
}
.title-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}
.title-copy {
  min-width: 0;
  min-height: 0;
  display: grid;
  align-content: start;
  gap: 14px;
}
.title-copy .eyebrow {
  color: rgba(210, 242, 255, 0.74);
}
.title-copy h1 {
  margin: 0;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 0.94;
  letter-spacing: 0.08em;
  text-wrap: balance;
  text-shadow: 0 0 34px rgba(116,255,240,0.12);
}
.title-copy .lead {
  max-width: 34ch;
  margin: 0;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.8;
  color: #d9ebf4;
}
.title-signature {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}
.title-signature span {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(116,255,240,0.95), rgba(255,112,218,0.55));
  box-shadow: 0 0 18px rgba(116,255,240,0.24);
}
.title-signature span:nth-child(1) { width: 112px; opacity: 0.95; }
.title-signature span:nth-child(2) { width: 54px; opacity: 0.8; }
.title-signature span:nth-child(3) { width: 18px; opacity: 0.68; }
.title-version {
  position: absolute;
  right: 28px;
  bottom: 24px;
  z-index: 2;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(7, 13, 24, 0.72);
  color: rgba(220, 240, 250, 0.82);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  box-shadow: 0 10px 30px rgba(0,0,0,0.28);
  backdrop-filter: blur(12px);
  pointer-events: none;
}
.title-orbit {
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
  mix-blend-mode: screen;
}
.title-orbit-a {
  right: 128px;
  top: 54px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(116,255,240,0.14);
  transform: rotate(-16deg);
}
.title-orbit-b {
  right: 86px;
  top: 34px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(255,112,218,0.16);
  transform: rotate(18deg);
}
.title-menu-panel {
  position: relative;
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 0;
  border-radius: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.title-menu-panel::before {
  content: none;
}
.title-menu-head {
  position: relative;
  display: grid;
  gap: 6px;
}
.title-menu-head strong {
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: 0.06em;
}
.title-actions {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 140px);
  justify-content: start;
  gap: 10px;
  margin-top: 4px;
  justify-items: start;
}
.title-actions button {
  width: 140px;
  min-width: 140px;
  max-width: 140px;
  min-height: 40px;
  padding: 9px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  justify-content: center;
}
.title-actions button.title-action-primary {
  background: linear-gradient(135deg, #7ffff0, #ffffff 52%, #b9fffb);
}
.title-actions button.title-action-tutorial {
  color: #04121a;
  background: linear-gradient(135deg, #ffb9f0, #f4ffff 54%, #9efff3);
}
.screen-card h1,
.screen-card h2,
.shop-title-row h3 {
  margin: 8px 0 12px;
  letter-spacing: 0.05em;
}
.screen-card h1 {
  font-size: clamp(38px, 6vw, 72px);
}
.screen-card h2 {
  font-size: clamp(30px, 4vw, 52px);
}
.lead {
  color: #d1e5ef;
  line-height: 1.75;
  font-size: 15px;
  margin: 0;
}
.eyebrow.success { color: #b6ff9e; }
.eyebrow.danger { color: #ff8b8b; }
.controls-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(170px, 1fr));
  gap: 12px;
}
.controls-grid > div,
.info-card,
.shop-card {
  border-radius: 18px;
  padding: 12px 14px;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.06);
}
.controls-grid strong {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}
.controls-grid span {
  color: #c7d7df;
  font-size: 13px;
  line-height: 1.5;
}