@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700&family=Zen+Kaku+Gothic+New:wght@400;500;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

  :root {
    --paper: #efeae0;
    --paper-card: #f7f4ec;
    --paper-line: #d8d0bf;
    --ink: #2a2622;
    --ink-soft: #6b6255;
    --ink-faint: #a89d8a;
    --stamp-red: #a4402f;
    --stamp-blue: #3b6b88;
    --stamp-green: #4a5d43;
    --gold: #a37f3a;
    --shadow: rgba(42, 38, 34, 0.12);
  }

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

  body {
    background: var(--paper);
    background-image:
      repeating-linear-gradient(0deg, transparent, transparent 34px, rgba(107,98,85,0.06) 34px, rgba(107,98,85,0.06) 35px);
    color: var(--ink);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    min-height: 100vh;
    padding: 24px 16px 80px;
    -webkit-tap-highlight-color: transparent;
  }

  .wrap { max-width: 720px; margin: 0 auto; position: relative; }

  header {
    text-align: center;
    padding: 20px 0 28px;
    border-bottom: 3px double var(--ink-faint);
    margin-bottom: 24px;
    position: relative;
  }

  header .eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.25em;
    color: var(--ink-soft);
    text-transform: uppercase;
  }

  h1 {
    font-family: 'Shippori Mincho', serif;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 6px 0 4px;
  }

  header .sub {
    font-size: 12.5px;
    color: var(--ink-soft);
    letter-spacing: 0.03em;
  }

  .header-tools {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
  }

  .tool-btn {
    background: transparent;
    border: 1px solid var(--paper-line);
    color: var(--ink-soft);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px;
    letter-spacing: 0.03em;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }
  .tool-btn:hover { border-color: var(--gold); color: var(--gold); }
  .tool-btn.active {
    border-color: var(--stamp-green);
    color: var(--stamp-green);
  }
  .tool-btn span { font-weight: 600; }

  .icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    stroke: currentColor;
  }
  .icon-sm {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    stroke: currentColor;
    display: block;
  }

  /* シナリオ台帳リスト & 合計 */
  .grand-total {
    display: none;
    text-align: center;
    padding: 16px 20px;
    margin-bottom: 20px;
    background: #2a2622;
    color: var(--paper);
  }
  .grand-total.show { display: block; }
  .grand-total .label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.15em;
    opacity: 0.65;
    text-transform: uppercase;
  }
  .grand-total .num {
    font-family: 'Shippori Mincho', serif;
    font-size: 26px;
    font-weight: 700;
    margin-top: 4px;
    letter-spacing: 0.03em;
  }
  .grand-total .cur { font-size: 14px; margin-left: 4px; opacity: 0.8; }

  .ledger-section-head {
    margin-bottom: 12px;
  }

  .ledger-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }

  .ledger-card {
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    box-shadow: 2px 3px 0 var(--shadow);
    position: relative;
  }

  .ledger-card summary {
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    list-style: none;
  }
  .ledger-card summary::-webkit-details-marker { display: none; }
  .ledger-card summary::marker { content: ''; }

  .ledger-card summary::after {
    content: '▾';
    font-size: 12px;
    color: var(--ink-faint);
    transition: transform 0.2s;
  }
  .ledger-card[open] summary::after {
    transform: rotate(180deg);
  }

  .ledger-info {
    flex: 1;
    min-width: 0;
    border-left: 3px solid var(--tag-color, #a4402f);
    padding-left: 10px;
  }
  .ledger-name {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.03em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .ledger-meta {
    font-size: 11px;
    color: var(--ink-soft);
    margin-top: 2px;
    font-family: 'JetBrains Mono', 'Zen Kaku Gothic New', monospace;
  }

  .ledger-amount {
    text-align: right;
    flex-shrink: 0;
  }
  .ledger-amount .num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
  }
  .ledger-amount .cur {
    font-size: 12px;
    margin-left: 2px;
    color: var(--ink-soft);
  }
  .ledger-pending {
    display: block;
    font-size: 10.5px;
    color: var(--ink-faint);
    font-family: 'JetBrains Mono', monospace;
  }

  .ledger-actions {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-shrink: 0;
  }
  .ledger-actions button {
    background: none;
    border: none;
    color: var(--ink-faint);
    cursor: pointer;
    padding: 3px 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .ledger-actions button:hover { color: var(--ink); }
  .ledger-actions .ledger-del:hover { color: var(--stamp-red); }

  .ledger-interrupts {
    padding: 0 20px 16px 33px;
    border-top: 1px dashed var(--paper-line);
    margin-top: -4px;
    padding-top: 12px;
    font-size: 12px;
  }
  .ledger-iv-empty { color: var(--ink-faint); font-style: italic; }
  .ledger-iv-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    color: var(--ink-soft);
  }
  .ledger-iv-entry.future { color: var(--ink-faint); }
  .ledger-iv-date { font-family: 'JetBrains Mono', monospace; font-size: 11.5px; }
  .ledger-iv-amt { font-family: 'JetBrains Mono', monospace; color: var(--gold); font-weight: 600; }
  .ledger-iv-del {
    background: none;
    border: none;
    color: var(--ink-faint);
    cursor: pointer;
    padding: 1px 4px;
    margin-left: 6px;
  }
  .ledger-iv-del:hover { color: var(--stamp-red); }

  .add-toggle {
    display: block;
    width: 100%;
    background: transparent;
    border: 1px dashed var(--ink-faint);
    color: var(--ink-soft);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-size: 13px;
    padding: 12px;
    cursor: pointer;
    text-align: center;
    margin-bottom: 20px;
    transition: all 0.15s;
  }
  .add-toggle:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: rgba(163,127,58,0.04);
  }

  /* 記帳フォームカード */
  .form-card {
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    box-shadow: 3px 4px 0 var(--shadow);
    padding: 22px 24px;
    margin-bottom: 28px;
    display: none;
  }
  .form-card.open { display: block; }
  .form-title {
    font-family: 'Shippori Mincho', serif;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--paper-line);
  }
  .field-row {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
  }
  .field {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
  }
  .field.full { flex: 1 1 100%; }
  .field label {
    font-size: 11px;
    color: var(--ink-soft);
    letter-spacing: 0.04em;
    font-family: 'JetBrains Mono', monospace;
  }
  .field input, .field select {
    background: #fff;
    border: 1px solid var(--paper-line);
    color: var(--ink);
    font-family: 'JetBrains Mono', 'Zen Kaku Gothic New', monospace;
    font-size: 13px;
    padding: 8px 10px;
    outline: none;
    width: 100%;
  }
  .field input:focus, .field select:focus {
    border-color: var(--gold);
  }

  .interval-row {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .interval-unit-label {
    font-size: 12px;
    color: var(--ink-soft);
    white-space: nowrap;
  }
  .shortcut-row {
    display: flex;
    gap: 6px;
    margin-top: 6px;
  }
  .shortcut-btn {
    background: transparent;
    border: 1px solid var(--paper-line);
    color: var(--ink-soft);
    font-size: 11px;
    padding: 4px 8px;
    cursor: pointer;
  }
  .shortcut-btn:hover { border-color: var(--gold); color: var(--gold); }

  .color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 4px 0;
  }
  .color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.1s;
    position: relative;
  }
  .color-dot:hover { transform: scale(1.15); }
  .color-dot.selected {
    border-color: var(--ink);
    transform: scale(1.1);
  }
  .color-dot.selected::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 6px; height: 6px;
    background: #fff;
    border-radius: 50%;
  }
  .color-action-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: transparent;
    border: 1px dashed var(--ink-faint);
    color: var(--ink-soft);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }
  .color-action-btn:hover { border-color: var(--gold); color: var(--gold); }
  .custom-color-hidden-input { display: none; }

  .form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
  }
  .btn-primary {
    background: var(--ink);
    color: var(--paper);
    border: none;
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-size: 13px;
    font-weight: 500;
    padding: 9px 20px;
    cursor: pointer;
    transition: background 0.15s;
  }
  .btn-primary:hover { background: var(--gold); }
  .btn-secondary {
    background: transparent;
    border: 1px solid var(--paper-line);
    color: var(--ink-soft);
    font-size: 13px;
    padding: 9px 16px;
    cursor: pointer;
  }
  .btn-secondary:hover { border-color: var(--ink); color: var(--ink); }

  /* 年間サマリー */
  .year-summary {
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    padding: 10px 16px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12.5px;
  }
  .ys-label { font-family: 'Shippori Mincho', serif; font-weight: 600; }
  .ys-nums { font-family: 'JetBrains Mono', monospace; }
  .ys-nums .count { font-size: 11px; color: var(--ink-soft); margin-left: 3px; }

  /* カレンダーヘッダー */
  .cal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 10px;
  }
  .cal-title-row {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .jump-select {
    background: transparent;
    border: 1px solid var(--paper-line);
    color: var(--ink);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    padding: 4px 6px;
    cursor: pointer;
  }
  .jump-select:focus { border-color: var(--gold); }

  .cal-nav {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .cal-nav button {
    background: transparent;
    border: 1px solid var(--paper-line);
    color: var(--ink-soft);
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s;
  }
  .cal-nav button:hover { border-color: var(--gold); color: var(--gold); }
  .cal-title {
    font-family: 'Shippori Mincho', serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.05em;
    min-width: 110px;
    text-align: center;
  }

  /* カレンダーコンテナ（ドラッグ/スワイプ対応） */
  .cal-wrapper {
    position: relative;
    touch-action: pan-y;
    user-select: none;
    cursor: grab;
    transition: transform 0.15s ease-out;
  }
  .cal-wrapper.dragging {
    cursor: grabbing;
    transition: none;
  }

  /* カレンダーグリッド */
  .cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--paper-line);
    border: 1px solid var(--paper-line);
  }

  .cal-dow {
    background: #e5ddc9;
    text-align: center;
    font-size: 10.5px;
    font-family: 'JetBrains Mono', monospace;
    padding: 7px 0;
    color: var(--ink-soft);
    letter-spacing: 0.05em;
    font-weight: 600;
  }
  /* 土日カラー */
  .cal-dow.sun { color: var(--stamp-red); }
  .cal-dow.sat { color: var(--stamp-blue); }

  .cal-cell {
    background: #f7f4ec;
    min-height: 60px;
    padding: 5px 6px;
    position: relative;
    cursor: pointer;
    transition: background 0.1s;
  }
  .cal-cell:hover { background: #fdfaf3; }
  .cal-cell.blank { background: transparent; cursor: default; }
  .cal-cell.today { background: #fbf3de; }
  .cal-cell.today .cal-daynum { color: var(--stamp-red); font-weight: 700; }
  .cal-cell.selected { outline: 2px solid var(--gold); outline-offset: -2px; }

  /* 土日のセル色 */
  .cal-cell.sun .cal-daynum { color: var(--stamp-red); }
  .cal-cell.sat .cal-daynum { color: var(--stamp-blue); }

  .cal-daynum {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11.5px;
    color: var(--ink-soft);
  }

  .cal-marks {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    margin-top: 5px;
  }
  .cal-mark {
    width: 7px; height: 7px;
    border-radius: 50%;
  }

  /* カレンダーセルツールチップ */
  .cal-tooltip {
    position: fixed;
    z-index: 1000;
    pointer-events: none;
    background: rgba(30, 26, 20, 0.92);
    color: #fff;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 11.5px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
    transform: translate(-50%, -100%);
    margin-top: -8px;
    white-space: nowrap;
    line-height: 1.4;
  }
  .cal-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(30, 26, 20, 0.92);
  }

  /* 年間プレビューグリッド */
  .year-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
  }
  .year-grid-month {
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    padding: 10px;
    cursor: pointer;
    transition: border-color 0.15s;
  }
  .year-grid-month:hover { border-color: var(--gold); }
  .year-grid-month.current { border-color: var(--stamp-red); border-width: 1.5px; }

  .year-grid-month-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px;
    color: var(--ink-soft);
    text-align: center;
    margin-bottom: 6px;
  }
  .year-grid-mini {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
  }
  .year-grid-mini-cell {
    aspect-ratio: 1;
    background: var(--paper-line);
    opacity: 0.35;
  }
  .year-grid-mini-cell.has-deposit { opacity: 1; }
  .year-grid-mini-cell.blank { background: transparent; }

  /* 選択日の詳細パネル */
  .day-detail {
    margin-top: 20px;
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    box-shadow: 2px 3px 0 var(--shadow);
    padding: 18px 20px;
    display: none;
  }
  .day-detail.open { display: block; }
  .day-detail-date {
    font-family: 'Shippori Mincho', serif;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--paper-line);
  }
  .day-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 0;
    border-bottom: 1px dashed var(--paper-line);
    font-size: 13px;
  }
  .day-entry:last-child { border-bottom: none; }
  .day-entry-name {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink-soft);
  }
  .day-entry-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
  .day-entry-amt {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    color: var(--stamp-green);
  }
  .day-entry-amt.pre { color: var(--ink-faint); font-weight: 400; }
  .day-detail-empty {
    font-size: 12px;
    color: var(--ink-faint);
    text-align: center;
    padding: 8px 0;
  }

  .interrupt-row {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--paper-line);
  }
  .interrupt-label {
    font-size: 10.5px;
    color: var(--ink-soft);
    letter-spacing: 0.04em;
    margin-bottom: 8px;
    font-family: 'JetBrains Mono', monospace;
  }
  .interrupt-form {
    display: flex;
    gap: 6px;
  }
  .interrupt-form select {
    flex: 1.3;
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-size: 12px;
    padding: 7px 6px;
    background: #fff;
    border: 1px solid var(--paper-line);
    color: var(--ink);
    min-width: 0;
  }
  .interrupt-form input {
    flex: 1;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    padding: 7px 6px;
    background: #fff;
    border: 1px solid var(--paper-line);
    color: var(--ink);
    min-width: 0;
  }
  .interrupt-form button {
    background: var(--ink);
    color: var(--paper);
    border: none;
    font-size: 12px;
    padding: 7px 12px;
    cursor: pointer;
    white-space: nowrap;
  }
  .interrupt-form button:hover { background: var(--stamp-green); }

  /* 目標金額バッジ */
  .ledger-target-badge {
    margin-top: 5px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-family: 'JetBrains Mono', 'Zen Kaku Gothic New', monospace;
    color: var(--ink-soft);
    background: #ece7db;
    padding: 2px 7px;
    border-radius: 2px;
    border: 1px solid var(--paper-line);
  }
  .ledger-target-badge.reached {
    background: #e1ebd9;
    color: var(--stamp-green);
    border-color: #bad3ab;
  }
  .ledger-target-badge .icon-sm { width: 11px; height: 11px; }

  /* モーダルオーバーレイ & カード（シミュレーター用） */
  .modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(42, 38, 34, 0.6);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 16px;
  }
  .modal-card {
    background: #f7f4ec;
    border: 1px solid var(--paper-line);
    box-shadow: 4px 6px 0 var(--shadow);
    padding: 24px;
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
  }
  .modal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
  }
  .modal-title {
    font-family: 'Shippori Mincho', serif;
    font-size: 17px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .modal-close {
    background: none;
    border: none;
    color: var(--ink-faint);
    cursor: pointer;
    padding: 4px;
  }
  .modal-close:hover { color: var(--ink); }
  .modal-sub {
    font-size: 11.5px;
    color: var(--ink-soft);
    margin-bottom: 16px;
  }

  .sim-result-card {
    margin-top: 18px;
    padding: 14px;
    background: #efeae0;
    border: 1px solid var(--paper-line);
    font-size: 12.5px;
  }
  .sim-result-item {
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
  }
  .sim-result-item:last-child { margin-bottom: 0; }
  .sim-result-item .num {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    color: var(--stamp-green);
  }

  /* チャートカード & コントロール */
  .chart-card {
    margin-top: 28px;
    background: var(--paper-card);
    border: 1px solid var(--paper-line);
    box-shadow: 3px 4px 0 var(--shadow);
    padding: 20px;
  }
  .chart-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
  }
  .chart-title {
    font-family: 'Shippori Mincho', serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 7px;
  }
  .chart-title .icon {
    width: 16px;
    height: 16px;
    color: var(--stamp-green);
  }
  .chart-sub {
    font-size: 11px;
    color: var(--ink-soft);
    margin-top: 4px;
  }
  .chart-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .chart-period-group, .chart-type-group {
    display: inline-flex;
    border: 1px solid var(--paper-line);
    background: #fff;
  }
  .chart-btn {
    background: transparent;
    border: none;
    color: var(--ink-soft);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px;
    padding: 4px 8px;
    cursor: pointer;
    transition: all 0.12s;
  }
  .chart-btn:hover { color: var(--gold); }
  .chart-btn.active {
    background: var(--ink);
    color: var(--paper);
  }

  .chart-container {
    width: 100%;
    position: relative;
    overflow: hidden;
  }
  #chartCanvas {
    display: block;
    width: 100%;
    cursor: crosshair;
  }

  footer {
    text-align: center;
    margin-top: 36px;
    font-size: 11px;
    color: var(--ink-faint);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.05em;
  }

  @media (max-width: 600px) {
    .field-row { flex-direction: column; }
    .ledger-card summary { flex-direction: column; align-items: flex-start; gap: 8px; }
    .ledger-amount { text-align: left; }
    .chart-head { flex-direction: column; align-items: stretch; }
    .chart-controls { justify-content: space-between; }
    .year-grid { grid-template-columns: repeat(2, 1fr); }
  }