:root {
  --color-bg: #0b0f16;
  --color-surface: #161c26;
  --color-surface-strong: #1f2836;
  --color-text: #f7f9fc;
  --color-text-muted: #9fb0c6;
  --color-highlight: rgba(90, 200, 250, 0.32);
}

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

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family:
    'Hiragino Sans',
    'Noto Sans JP',
    system-ui,
    -apple-system,
    'Segoe UI',
    sans-serif;
  -webkit-text-size-adjust: 100%;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-surface-strong);
}

.header__title {
  flex: 1;
  margin: 0;
  overflow: hidden;
  font-size: clamp(18px, 5vw, 28px);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header__connection {
  flex: none;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-surface-strong);
  color: var(--color-text-muted);
  font-size: 13px;
}

.main {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
}

.view {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
}

.placeholder {
  margin: auto;
  padding: 24px;
  color: var(--color-text-muted);
  font-size: clamp(16px, 4vw, 22px);
  line-height: 1.6;
  text-align: center;
}

.register {
  justify-content: space-between;
}

/* 準備中: 枠組みは残して値だけ見せない (display:none だと合計欄の高さが変わる) */
.register--dimmed .summary__phase,
.register--dimmed .summary__count,
.register--dimmed .summary__caption,
.register--dimmed .summary__total {
  visibility: hidden;
}

.lines {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 16px;
  scroll-behavior: smooth;
}

.lines__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lines__note {
  margin: 24px 0;
  color: var(--color-text-muted);
  font-size: clamp(14px, 3.5vw, 18px);
  text-align: center;
}

.line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 12px 8px;
  border-bottom: 1px solid var(--color-surface-strong);
  border-radius: 8px;
}

.line--changed {
  animation: line-appear 1.4s ease-out;
}

@keyframes line-appear {
  from {
    background-color: var(--color-highlight);
  }
  to {
    background-color: transparent;
  }
}

.line__label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.line__name {
  font-size: clamp(16px, 4.5vw, 22px);
  overflow-wrap: anywhere;
}

.line__variant {
  color: var(--color-text-muted);
  font-size: clamp(12px, 3.2vw, 15px);
  overflow-wrap: anywhere;
}

.line__unit {
  color: var(--color-text-muted);
  font-size: clamp(12px, 3.2vw, 15px);
  font-variant-numeric: tabular-nums;
}

.line__subtotal {
  align-self: center;
  grid-column: 2;
  grid-row: 1 / span 2;
  font-size: clamp(18px, 5vw, 24px);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.summary {
  flex: none;
  padding: 20px 16px calc(20px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--color-surface-strong);
  background: var(--color-surface);
  text-align: right;
}

.summary__phase {
  margin: 0;
  font-size: clamp(16px, 4.5vw, 24px);
  font-weight: 600;
  text-align: left;
}

.summary__count {
  margin: 8px 0 0;
  color: var(--color-text-muted);
  font-size: clamp(20px, 6vw, 30px);
  font-variant-numeric: tabular-nums;
}

.summary__caption {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  font-size: clamp(14px, 3.5vw, 20px);
}

.summary__total {
  margin: 0;
  font-size: clamp(40px, 16vw, 96px);
  font-weight: 700;
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
}

/* スマートフォンの横向きが基本。縦積みだと合計が高さの大半を占めて直前の明細行が切れるため、
   明細と合計を左右に分け、最新行と点数・金額が常に画面内に収まるようにする */
@media (orientation: landscape) and (max-height: 520px) {
  .header {
    padding: 6px 16px;
  }

  .header__title {
    font-size: clamp(16px, 3vw, 22px);
  }

  .register {
    flex-direction: row;
  }

  .lines {
    flex: 1 1 auto;
    padding: 4px 12px;
  }

  .line {
    padding: 8px;
  }

  .line__name {
    font-size: clamp(15px, 2.6vw, 20px);
  }

  .line__subtotal {
    font-size: clamp(16px, 2.8vw, 22px);
  }

  .summary {
    display: flex;
    flex: 0 0 44%;
    flex-direction: column;
    justify-content: flex-end;
    max-width: 44%;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom)) 16px;
    border-top: 0;
    border-left: 1px solid var(--color-surface-strong);
  }

  .summary__phase {
    font-size: clamp(14px, 2.8vw, 20px);
  }

  .summary__count {
    margin-top: auto;
    font-size: clamp(16px, 3.2vw, 24px);
  }

  .summary__caption {
    margin-top: 6px;
    font-size: clamp(13px, 2.4vw, 17px);
  }

  .summary__total {
    font-size: clamp(36px, 8vw, 68px);
  }
}

.summary__stale {
  margin: 8px 0 0;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: left;
}

.overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  border: 0;
  background: rgba(11, 15, 22, 0.94);
  color: var(--color-text);
  font-family: inherit;
  font-size: clamp(20px, 6vw, 32px);
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  .line--changed {
    animation: none;
  }

  .lines {
    scroll-behavior: auto;
  }
}