/* SBD -- Shirley Budget (Debt Battle Plan). Mobile-first, thumb-sized rows. */
:root {
  --green: #1e8e3e;
  --green-bg: #e6f4ea;
  --blue: #1a56db;
  --blue-bg: #e6eefc;
  --gray: #444;
  --gray-bg: #eee;
  --pink: #b8256f;
  --pink-bg: #fbe6f0;
  --gold: #8a6d00;
  --gold-bg: #fff4cc;
  --bg: #fafafa;
  --fg: #1a1a1a;
  --card-bg: #fff;
  --border: #ddd;
  --danger: #c0392b;
  --danger-bg: #fdecea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eee;
    --card-bg: #1e1e1e;
    --border: #333;
    --green-bg: #123a1f;
    --blue-bg: #10233f;
    --gray-bg: #262626;
    --pink-bg: #3a1327;
    --gold-bg: #3a2f00;
    --danger-bg: #3a1512;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.4;
  padding-bottom: 5rem;
}
a { color: var(--blue); }
.wrap { max-width: 640px; margin: 0 auto; padding: 0.75rem; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1rem; background: var(--card-bg); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 1.1rem; margin: 0; }
.topbar nav a { margin-left: 0.75rem; font-size: 0.9rem; text-decoration: none; }
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem; margin-bottom: 0.75rem;
}
h2 { font-size: 1.1rem; margin: 0.25rem 0 0.75rem; }
button, input[type=submit] {
  font-size: 1rem; padding: 0.6rem 1rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--blue); color: #fff; cursor: pointer;
}
button.secondary { background: var(--gray-bg); color: var(--fg); }
button.danger { background: var(--danger); color: #fff; }
input[type=text], input[type=number], input[type=password], select {
  font-size: 1rem; padding: 0.5rem; border-radius: 6px; border: 1px solid var(--border);
  width: 100%; background: var(--card-bg); color: var(--fg);
}
label { display: block; font-size: 0.85rem; margin-bottom: 0.2rem; opacity: 0.8; }
.field { margin-bottom: 0.75rem; }
form.inline { display: inline; }

/* login */
.login-wrap { max-width: 360px; margin: 3rem auto; padding: 1rem; }
.login-wrap input[type=password] { font-size: 1.3rem; padding: 0.9rem; }
.login-wrap button { width: 100%; font-size: 1.2rem; padding: 0.9rem; margin-top: 0.75rem; }
.error { color: var(--danger); background: var(--danger-bg); padding: 0.6rem; border-radius: 6px; margin: 0.5rem 0; }

/* dashboard */
.stat-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.stat { flex: 1; min-width: 130px; text-align: center; }
.stat .big { font-size: 1.5rem; font-weight: 700; }
.stat .lbl { font-size: 0.75rem; opacity: 0.7; }
.ahead { color: var(--green); }
.behind { color: var(--danger); }
.target-card { border: 2px solid var(--gold); background: var(--gold-bg); }
.progress { background: var(--gray-bg); border-radius: 6px; height: 10px; overflow: hidden; margin-top: 0.3rem; }
.progress > div { background: var(--blue); height: 100%; }
.debt-row { display: flex; justify-content: space-between; padding: 0.4rem 0; border-bottom: 1px solid var(--border); }
.debt-row:last-child { border-bottom: none; }
.big-btn { display: block; width: 100%; text-align: center; font-size: 1.15rem; padding: 1rem; text-decoration: none; border-radius: 10px; background: var(--blue); color: #fff; margin: 0.5rem 0; }

/* session / lines */
.chip { display: inline-block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  padding: 0.15rem 0.5rem; border-radius: 999px; letter-spacing: 0.03em; }
.chip-income { background: var(--green-bg); color: var(--green); }
.chip-transfer { background: var(--blue-bg); color: var(--blue); }
.chip-bill { background: var(--gray-bg); color: var(--gray); }
.chip-debt { background: var(--pink-bg); color: var(--pink); }
.chip-target { background: var(--gold-bg); color: var(--gold); border: 1px solid var(--gold); }

.line-row {
  display: flex; align-items: center; gap: 0.6rem; padding: 0.7rem 0.5rem;
  border-bottom: 1px solid var(--border); background: var(--card-bg);
}
.line-row.target { background: var(--gold-bg); }
.line-row.skipped { opacity: 0.45; text-decoration: line-through; }
.line-check { width: 1.6rem; height: 1.6rem; flex-shrink: 0; }
.line-main { flex: 1; min-width: 0; }
.line-label { font-weight: 600; }
.line-sub { font-size: 0.78rem; opacity: 0.7; }
.line-amt { width: 5.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.line-amt input { text-align: right; padding: 0.3rem; font-size: 0.95rem; }
.line-running { width: 5.5rem; text-align: right; font-size: 0.8rem; opacity: 0.75; font-variant-numeric: tabular-nums; }
.running-neg { color: var(--danger); font-weight: 700; }
.line-actions button { font-size: 0.75rem; padding: 0.3rem 0.5rem; }

.summary-bar {
  position: sticky; bottom: 0; background: var(--card-bg); border-top: 2px solid var(--border);
  padding: 0.6rem 0.75rem; display: flex; justify-content: space-between; font-size: 0.85rem;
  flex-wrap: wrap; gap: 0.4rem;
}
.summary-bar .net { font-weight: 700; }

.badge-short { background: var(--danger-bg); color: var(--danger); padding: 0.5rem 0.75rem;
  border-radius: 8px; font-weight: 700; margin-bottom: 0.5rem; }
.badge-bonus { background: var(--gold-bg); color: var(--gold); padding: 0.4rem 0.75rem;
  border-radius: 8px; font-weight: 700; margin-bottom: 0.5rem; display: inline-block; }

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
table th, table td { text-align: right; padding: 0.4rem; border-bottom: 1px solid var(--border); }
table th:first-child, table td:first-child { text-align: left; }
.scroll-x { overflow-x: auto; }

.section-title { font-size: 0.8rem; text-transform: uppercase; opacity: 0.6; margin: 0.75rem 0 0.3rem; letter-spacing: 0.04em; }