:root {
  color-scheme: light dark;
  --background: #f2f2f7;
  --card: #ffffff;
  --text: #1c1c1e;
  --secondary: #6c6c70;
  --accent: #0a6e6a;
  --on-accent: #ffffff;
  --selected: #d6efed;
  --line: #d9d9de;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #000000;
    --card: #1c1c1e;
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --accent: #4dd0c8;
    --on-accent: #00302e;
    --selected: #123f3c;
    --line: #38383a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 17px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 { font-size: 28px; margin: 0 0 4px; outline: none; }
.group, .note, .detail { color: var(--secondary); }
.group { margin: 0 0 20px; }
.note { font-size: 13px; margin: 4px 0 0; flex-basis: 100%; }
.message { margin: 12px 0; }

ul { list-style: none; margin: 0 0 16px; padding: 0; }
li + li { margin-top: 8px; }

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

button {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border: 0;
  border-radius: 14px;
  background: var(--card);
  text-align: left;
  cursor: pointer;
}

button:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
button:disabled { opacity: 0.6; }
button.primary { background: var(--accent); color: var(--on-accent); font-weight: 600; text-align: center; margin-top: 8px; }
button.secondary { background: transparent; color: var(--accent); text-align: center; }

button.line { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 12px; }
button.line[aria-pressed="true"] { background: var(--selected); box-shadow: inset 0 0 0 2px var(--accent); }
.name { flex: 1 1 60%; overflow-wrap: anywhere; }
.amount { font-variant-numeric: tabular-nums; }
.detail { flex-basis: 100%; font-size: 13px; }
.detail:empty { display: none; }

.summary { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; padding: 12px 4px; font-weight: 600; }
.total { font-size: 22px; font-variant-numeric: tabular-nums; }
.note { font-weight: 400; }

label { display: block; margin-bottom: 6px; color: var(--secondary); }
input { width: 100%; min-height: 48px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }