:root {
  --paper: #f2f3ef;
  --card: #ffffff;
  --ink: #1c2321;
  --ink-soft: #4b524c;
  --ink-faint: #828a82;
  --line: #dadcd4;
  --accent: #3e6259;
  --accent-strong: #2a4740;
  --accent-soft: #e4e9e3;
  --warn: #b4622a;
  --danger: #a2453f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #171a17;
    --card: #1f231f;
    --ink: #eef0ea;
    --ink-soft: #b7bdb4;
    --ink-faint: #7c847b;
    --line: #333731;
    --accent: #7fada0;
    --accent-strong: #a3c9bd;
    --accent-soft: #243330;
    --warn: #dd9563;
    --danger: #e2938c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  line-height: 1.6;
}

h1, h2 { font-weight: 700; margin: 0; }
h1 { font-size: 20px; }
h2 { font-size: 16px; margin-bottom: 12px; }
h3 { font-size: 13px; color: var(--ink-faint); margin: 0 0 8px; }

.hint { color: var(--ink-faint); font-size: 13px; margin: 0 0 12px; }

input, select, button {
  font: inherit;
  color: inherit;
}

input, select {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  background: var(--accent);
  color: var(--card);
  font-weight: 600;
}
button:hover { background: var(--accent-strong); }

.ghost-btn {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.ghost-btn:hover { background: var(--accent-soft); color: var(--accent-strong); }

.view[hidden] { display: none; }

/* ---- app shell (ヘッダーはログイン前から常に表示) ---- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--card);
  position: sticky;
  top: 0;
  z-index: 5;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---- login ---- */
#login-view {
  min-height: calc(100vh - 65px); /* ヘッダー分を差し引いた残り全体で中央寄せ */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px 28px;
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}
.login-card input { text-align: center; letter-spacing: 0.2em; }
.error { color: var(--danger); font-size: 13px; margin: 0; }
.header-right { display: flex; align-items: center; gap: 12px; }
.month-picker { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-soft); }

.layout {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  min-width: 0; /* flexアイテムが中身の最小幅で親からはみ出さないようにする */
}

/* ---- summary ---- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.summary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 12px;
}
.summary-item .label { font-size: 12px; color: var(--ink-faint); }
.summary-item .value {
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.value.income { color: var(--accent-strong); }
.value.expense { color: var(--warn); }

.breakdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  min-width: 0;
}
.breakdown-list { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.breakdown-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
}
.breakdown-row > span:first-child { min-width: 0; overflow-wrap: anywhere; }
.breakdown-row .amt { font-variant-numeric: tabular-nums; color: var(--ink); font-weight: 600; }
.breakdown-empty { color: var(--ink-faint); font-size: 13px; }

/* ---- edit/copy modal ---- */
.modal {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  width: min(560px, calc(100vw - 40px));
  max-height: min(680px, calc(100vh - 40px));
  background: var(--card);
  color: var(--ink);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  overflow-y: auto;
}
.modal::backdrop {
  background: rgba(0, 0, 0, 0.5);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.modal-head h2 { margin: 0; }
.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--ink-faint);
  font-size: 22px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 6px;
}
.modal-close-btn:hover { background: var(--accent-soft); color: var(--accent-strong); }

/* ---- copy-to-input banner ---- */
.copy-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  margin-bottom: 12px;
}
.copy-banner button { flex-shrink: 0; padding: 4px 10px; font-size: 12px; }

/* ---- entry forms (income / expense) ---- */
.entry-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  min-width: 0;
}
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field label { font-size: 12px; color: var(--ink-faint); }
.field-wide { grid-column: 1 / -1; min-width: 0; }
.field-actions { grid-column: 1 / -1; display: flex; gap: 10px; }

/* ---- add-trigger card (支出/収入を記録の入口。モーダルを開くだけの薄いカード) ---- */
.add-trigger-card { display: flex; flex-direction: row; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.add-trigger-card h2 { margin-bottom: 0; }
.add-trigger-card button { flex-shrink: 0; }
input, select { width: 100%; min-width: 0; }

/* ---- daily wage breakdown ---- */
.wage-breakdown { display: flex; flex-direction: column; gap: 10px; padding: 12px; background: var(--accent-soft); border-radius: 10px; min-width: 0; }
.wage-breakdown .hint { margin: 0; }
.wage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; min-width: 0; }
.wage-net-row {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 14px;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}
.wage-net-row span { font-variant-numeric: tabular-nums; color: var(--accent-strong); }
.wage-detail { font-size: 12px; color: var(--ink-faint); }

/* ---- transaction list ---- */
.section-head-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.section-head-row h2 { margin-bottom: 0; }
.filter-tabs { display: flex; gap: 6px; }
.tab-btn {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
}
.tab-btn.active { background: var(--accent); color: var(--card); border-color: var(--accent); }

.txn-list { display: flex; flex-direction: column; gap: 8px; }
.txn-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.txn-row .date { font-size: 12px; color: var(--ink-faint); width: 46px; flex-shrink: 0; }
.txn-row .meta { flex: 1; min-width: 0; }
.txn-row .category { font-weight: 600; font-size: 14px; }
.txn-row .memo { font-size: 12px; color: var(--ink-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.txn-row .amount { font-weight: 700; font-variant-numeric: tabular-nums; }
.txn-row .row-actions { display: flex; gap: 6px; }
.txn-row .row-actions button { padding: 5px 10px; font-size: 12px; }
.empty-state { color: var(--ink-faint); font-size: 13px; padding: 8px 0; }
.txn-show-all-btn { width: 100%; margin-top: 10px; font-size: 13px; }

/* ---- upcoming subscriptions alert ---- */
.upcoming-subs {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.upcoming-subs .breakdown-row.overdue .amt { color: var(--danger); }
.upcoming-subs .breakdown-row .due { color: var(--ink-faint); font-size: 12px; margin-left: 6px; }

/* ---- subscriptions ---- */
.subscription-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.subscription-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.subscription-row.overdue { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, var(--card)); }
.subscription-row.inactive { opacity: 0.55; }
.subscription-row .meta { flex: 1; min-width: 0; }
.subscription-row .name { font-weight: 600; font-size: 14px; }
.subscription-row .sub-info { font-size: 12px; color: var(--ink-faint); }
.subscription-row .sub-info .due-date.overdue { color: var(--danger); font-weight: 600; }
.subscription-row .amount { font-weight: 700; font-variant-numeric: tabular-nums; flex-shrink: 0; }
.subscription-row .row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.subscription-row .row-actions button { padding: 5px 10px; font-size: 12px; }
.subscription-row .pay-btn { background: var(--accent); color: var(--card); border: none; }

/* ---- category / payment method management ---- */
.manage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; min-width: 0; }
.manage-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; min-width: 0; }
.manage-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 8px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  min-width: 0;
}
.manage-row .name-display { flex: 1; min-width: 80px; overflow-wrap: anywhere; }
.manage-row .name-edit { display: flex; align-items: center; gap: 6px; flex: 1; min-width: 160px; }
.manage-row .name-edit-input {
  flex: 1;
  min-width: 0;
  padding: 4px 6px;
  font-size: 13px;
}
.manage-row .rename-btn,
.manage-row .delete-btn,
.manage-row .name-save-btn,
.manage-row .name-cancel-btn { flex-shrink: 0; padding: 4px 8px; font-size: 12px; }
.protected-badge {
  margin-left: 8px;
  font-size: 11px;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 8px;
}
.manage-row button { padding: 4px 8px; font-size: 12px; }
.add-form { display: flex; gap: 8px; }
.add-form input { flex: 1; }
.add-form button { flex-shrink: 0; }

/* ---- 並び替えモード（タップしながらドラッグして入れ替え） ---- */
.reorder-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  background: var(--card);
  transition: transform 0.15s ease;
}
.reorder-row .name-text { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.drag-handle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 18px;
  color: var(--ink-faint);
  background: var(--accent-soft);
  border-radius: 6px;
  cursor: grab;
  touch-action: none;
  user-select: none;
}
.drag-ghost {
  position: fixed;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 13px;
  background: var(--card);
  border: 1px solid var(--accent);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  pointer-events: none;
  opacity: 0.95;
}
.drag-ghost .drag-handle { cursor: grabbing; }

@media (max-width: 640px) {
  .summary-grid { grid-template-columns: 1fr; }
  .breakdown-grid { grid-template-columns: 1fr; }
  .entry-form { grid-template-columns: 1fr; }
  .manage-grid { grid-template-columns: 1fr; }
  .wage-grid { grid-template-columns: 1fr 1fr; }
  .app-header { flex-direction: column; align-items: flex-start; gap: 10px; }
}