: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; }

.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); }

/* ---- login ---- */
/* login.htmlは独立ページなので表示/非表示のトグルは不要（別ページ遷移で完結） */
.view {
  min-height: 100vh;
  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; }

/* ---- app shell ---- */
.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;
}
.header-right { display: flex; align-items: center; gap: 12px; }
.welcome-message { margin: 2px 0 0; font-size: 12.5px; color: var(--ink-faint); }
.month-picker { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-soft); }

.layout {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  min-width: 0; /* flexアイテムの既定min-width:autoによる押し広げを防ぐ */
}

/* ---- summary ---- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  min-width: 0;
}
.summary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 12px;
  min-width: 0; /* gridアイテムの既定min-width:autoによる押し広げを防ぐ */
}
.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); }

/* ---- income list ---- */
.income-list { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.income-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.income-row .name { flex: 0 0 88px; font-weight: 600; }
.income-row input { flex: 1; min-width: 0; }
.income-row .save-state { font-size: 12px; color: var(--ink-faint); min-width: 48px; text-align: right; }

/* ---- transaction form ---- */
.txn-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 input, .field select { min-width: 0; }
.field-wide { grid-column: 1 / -1; }
.field-actions { grid-column: 1 / -1; display: flex; gap: 10px; }

/* ---- savings goals ---- */
.goals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
  min-width: 0;
}
.goal-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0; /* gridアイテムの既定min-width:autoによる押し広げを防ぐ */
}
.goal-card .name { font-weight: 700; font-size: 15px; }
.goal-card .amounts {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}
.goal-card .amounts .current { color: var(--accent-strong); font-weight: 700; font-size: 16px; }
.bar-track { height: 8px; border-radius: 999px; background: var(--accent-soft); overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 999px; }
.goal-card .pct { align-self: flex-end; font-size: 12px; color: var(--ink-faint); }
.goal-card .breakdown {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px dashed var(--line);
  padding-top: 8px;
}
.goal-card .breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-soft);
}
.goal-card .breakdown-row .amt { font-variant-numeric: tabular-nums; color: var(--ink); }
.goal-card .no-entries { font-size: 12px; color: var(--ink-faint); }

.subform { margin-top: 10px; }
.subform summary {
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--accent-strong);
  padding: 6px 0;
}
.goal-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 8px;
  min-width: 0;
}

/* ---- transaction list ---- */
.txn-list { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.txn-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  min-width: 0;
}
.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; }

/* ---- category management ---- */
.manage-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  min-width: 0;
}
.manage-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 4px;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}
.manage-row .name-input {
  flex: 1;
  min-width: 0;
  border: 1px solid transparent;
  background: transparent;
  padding: 6px 4px;
}
.manage-row .name-input:focus { border-color: var(--line); background: var(--card); }
.manage-row .move-btn {
  padding: 4px 8px;
  font-size: 12px;
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.manage-row .move-btn:hover { background: var(--accent-soft); color: var(--accent-strong); }
.manage-row .move-btn:disabled { opacity: 0.35; cursor: default; }
.manage-row .move-btn:disabled:hover { background: transparent; color: var(--ink-soft); }
.manage-row .protected-badge {
  font-size: 11px;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  white-space: nowrap;
}
.add-form { display: flex; gap: 8px; min-width: 0; }
.add-form input { flex: 1; min-width: 0; }

@media (max-width: 520px) {
  .summary-grid { grid-template-columns: 1fr; }
  .txn-form { grid-template-columns: 1fr; }
  .app-header { flex-direction: column; align-items: flex-start; gap: 10px; }
}