:root {
  --paper: #FAF8F3;
  --card: #FFFFFF;
  --band: #F1EDE2;
  --ink: #2A3440;
  --ink-soft: #5C6875;
  --ink-faint: #8A93A0;
  --line: #E2DCCE;
  --indigo: #3A5A8C;
  --indigo-soft: #EBF0F7;
  --gold: #A97E22;
  --gold-soft: #F7F0DE;
  --green: #2E7D5B;
  --green-soft: #E6F2EC;
  --warn: #A8552F;
  --warn-soft: #F8ECE5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1C222B; --card: #242C37; --band: #29313D;
    --ink: #E7E3DA; --ink-soft: #A8AFB8; --ink-faint: #79828E;
    --line: #3A4350;
    --indigo: #8FADD8; --indigo-soft: #2B3646;
    --gold: #D9B15E; --gold-soft: #3A3320;
    --green: #7CC4A2; --green-soft: #24382F;
    --warn: #DB9A76; --warn-soft: #3E2C22;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  padding-bottom: env(safe-area-inset-bottom);
}
.num { font-family: "Roboto Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }

.sample-banner {
  background: var(--warn-soft); color: var(--warn);
  font-size: 12.5px; font-weight: 700; text-align: center; padding: 7px 12px;
}

.app-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px 4px; max-width: 720px; margin: 0 auto;
}
.app-head h1 { font-family: "Zen Maru Gothic", sans-serif; font-size: 20px; font-weight: 900; margin: 0; }
.save-status { font-size: 11.5px; color: var(--ink-faint); }

.tabs {
  display: flex; gap: 8px; padding: 8px 18px; max-width: 720px; margin: 0 auto;
  position: sticky; top: 0; background: var(--paper); z-index: 10;
}
.tab {
  flex: 1; border: 1.5px solid var(--line); background: var(--card); color: var(--ink-soft);
  font-family: inherit; font-size: 13.5px; font-weight: 700;
  border-radius: 999px; padding: 8px 10px; cursor: pointer;
}
.tab.active { background: var(--indigo); border-color: var(--indigo); color: var(--paper); }
.tab:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

main { max-width: 720px; margin: 0 auto; padding: 6px 16px 40px; }
.view { display: none; }
.view.active { display: block; }

.hero-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 18px 20px; margin: 8px 0 16px;
}
.hero-label { font-size: 12px; font-weight: 700; color: var(--ink-soft); letter-spacing: .05em; }
.hero-value { font-size: 31px; font-weight: 700; line-height: 1.3; }
.hero-value-s { font-size: 21px; font-weight: 700; }
.hero-value.positive { color: var(--green); }
.hero-value.negative { color: var(--warn); }
.hero-sub { font-size: 12.5px; color: var(--ink-faint); margin-top: 2px; }
.hero-row { display: flex; gap: 24px; flex-wrap: wrap; }
.warn-text { color: var(--warn); }

.group {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  margin: 10px 0; overflow: hidden;
}
.group summary {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 16px; cursor: pointer; list-style: none; user-select: none;
}
.group summary::-webkit-details-marker { display: none; }
.g-title { font-weight: 700; font-size: 14.5px; }
.g-sum { font-weight: 700; font-size: 15px; }
.rows { border-top: 1px solid var(--line); }
.row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 16px; border-bottom: 1px solid var(--line); font-size: 14px;
}
.row:last-child { border-bottom: none; }
.row .r-name { flex: 1; min-width: 0; }
.row .r-note { display: block; font-size: 11.5px; color: var(--ink-faint); }
.row input[type="number"] {
  width: 108px; text-align: right;
  font-family: "Roboto Mono", monospace; font-size: 14.5px;
  border: 1px solid var(--line); border-radius: 8px; padding: 5px 8px;
  background: var(--paper); color: var(--ink);
}
.row input[type="number"]:focus { outline: 2px solid var(--indigo); border-color: transparent; }
.row.readonly .r-amount { font-size: 14.5px; font-weight: 500; }
.range-pair { display: flex; align-items: center; gap: 4px; }
.range-pair input[type="number"] { width: 88px; }
.rows-note { font-size: 12px; color: var(--ink-faint); padding: 8px 16px 12px; margin: 0; }

.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 16px; margin: 10px 0;
}
.panel-title { font-weight: 700; font-size: 14.5px; margin-bottom: 8px; }
.slider-row { display: flex; align-items: center; gap: 12px; }
.slider-row input[type="range"] { flex: 1; accent-color: var(--indigo); }
.slider-row output { font-weight: 700; font-size: 16px; min-width: 96px; text-align: right; }
.check-row { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--ink-soft); margin-top: 8px; }
.check-row input { accent-color: var(--indigo); margin-top: 3px; }
.compare { font-size: 13px; background: var(--band); border-radius: 8px; padding: 8px 12px; margin-top: 10px; }
.compare b { color: var(--green); }
.extra-row { display: flex; gap: 8px; }
.extra-row input, .extra-row select {
  font-family: inherit; font-size: 14px; border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 10px; background: var(--paper); color: var(--ink);
}
.extra-row input { flex: 1; text-align: right; font-family: "Roboto Mono", monospace; }
.extra-row select { max-width: 46%; }

.debt-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 13px 16px; margin: 10px 0;
}
.debt-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.debt-name { font-weight: 700; font-size: 14.5px; }
.debt-rate { font-size: 12px; font-weight: 700; color: var(--warn); background: var(--warn-soft); border-radius: 999px; padding: 1px 9px; white-space: nowrap; }
.debt-rate.low { color: var(--indigo); background: var(--indigo-soft); }
.debt-balance { font-size: 19px; font-weight: 700; margin: 2px 0; cursor: pointer; border-radius: 6px; }
.debt-balance:hover { background: var(--band); }
.debt-balance input {
  width: 150px; font-family: "Roboto Mono", monospace; font-size: 17px; font-weight: 700;
  border: 1px solid var(--indigo); border-radius: 6px; padding: 2px 6px;
  background: var(--paper); color: var(--ink); text-align: right;
}
.debt-meter { height: 7px; border-radius: 4px; background: var(--line); overflow: hidden; margin: 6px 0 4px; }
.debt-meter i { display: block; height: 100%; background: var(--green); border-radius: 4px; }
.debt-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-soft); flex-wrap: wrap; gap: 4px; }
.debt-done { color: var(--green); font-weight: 700; }
.debt-warn { color: var(--warn); font-size: 12px; font-weight: 700; }

.app-foot { text-align: center; font-size: 11.5px; color: var(--ink-faint); padding: 10px 0 26px; }