:root {
  --paper: #f6f4ed;
  --ink: #1e3a2f;
  --filled: #2f6b4f;
  --accent: #a97e2f;
  --muted: #837f72;
  --line: #dad5c6;
  --card: #fffdf7;
  --danger: #8a3b2e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.wrap { max-width: 860px; margin: 0 auto; padding: 24px 18px 64px; }

header.masthead {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 2px solid var(--ink); padding-bottom: 12px; margin-bottom: 24px;
}
.masthead h1 {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.5rem; font-weight: 600; margin: 0; letter-spacing: 0.01em;
}
.masthead .tag { color: var(--muted); font-size: 0.85rem; }

.numbers { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 28px; }
.num-card { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; min-width: 0; container-type: inline-size; }
.num-card .label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); min-height: 2.5em; display: flex; align-items: flex-end; }
.num-card .value {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.7rem; font-variant-numeric: tabular-nums; margin-top: 2px;
  white-space: nowrap;
}
.num-card .value { font-size: clamp(1rem, 12.5cqw, 1.7rem); }
.num-card.hero { border-color: var(--ink); }
.num-card.hero .value { font-size: 2.1rem; }
.num-card.hero .value { font-size: clamp(1.1rem, 13.5cqw, 2.1rem); }
.num-card .sub { font-size: 0.8rem; color: var(--muted); }

.progressbar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 4px 0 28px; }
.progressbar > div { height: 100%; background: var(--filled); }

/* Signature: the 360-month grid, one row per year */
.grid-section h2, .history h2, .addform h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 1.05rem; font-weight: 600; margin: 0 0 10px;
}
.yeargrid { display: flex; flex-direction: column; gap: 3px; }
.yearrow { display: flex; align-items: center; gap: 3px; }
.yearrow .ylabel {
  width: 34px; flex: none; font-size: 0.68rem; color: var(--muted);
  font-variant-numeric: tabular-nums; text-align: right; padding-right: 6px;
}
.cell {
  flex: 1; aspect-ratio: 1; max-width: 20px; border-radius: 2px;
  border: 1px solid var(--line); background: var(--card);
}
.cell.paid { background: var(--filled); border-color: var(--filled); }
.cell.partial { background: linear-gradient(to top, var(--filled) 50%, var(--card) 50%); border-color: var(--filled); }
.cell.blank { background: transparent; border-color: transparent; }
.cell.eliminated, .legend i.eliminated {
  background: repeating-linear-gradient(45deg, var(--accent), var(--accent) 2px, var(--card) 2px, var(--card) 5px);
  border-color: var(--accent);
}
.cell.due { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.cell.due:not(.paid):not(.partial) { background: rgba(169, 126, 47, 0.28); }
.monthhead .mlabel { flex: 1; max-width: 20px; text-align: center; font-size: 0.6rem; color: var(--muted); }
.legend { display: flex; gap: 18px; margin-top: 10px; font-size: 0.78rem; color: var(--muted); flex-wrap: wrap; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 12px; height: 12px; border-radius: 2px; display: inline-block; border: 1px solid var(--line); background: var(--card); }
.legend i.paid { background: var(--filled); border-color: var(--filled); }
.legend i.partial { background: linear-gradient(to top, var(--filled) 50%, var(--card) 50%); border-color: var(--filled); }
.legend i.due { background: rgba(169, 126, 47, 0.28); border: 1px solid var(--accent); box-shadow: 0 0 0 2px var(--accent); }

.history { margin-top: 36px; }
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; font-size: 0.9rem; border-bottom: 1px solid var(--line); }
th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }
td.amount { font-variant-numeric: tabular-nums; }
td:first-child { white-space: nowrap; }
tr:last-child td { border-bottom: none; }
.badge { font-size: 0.7rem; padding: 2px 7px; border-radius: 10px; border: 1px solid var(--line); color: var(--muted); }
.badge.auto { border-color: var(--filled); color: var(--filled); }
.empty { color: var(--muted); padding: 18px; text-align: center; }

.addform { margin-top: 36px; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 16px; }
.addform .row { display: flex; gap: 10px; flex-wrap: wrap; }
input, select { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--ink); }
button { font: inherit; padding: 8px 16px; border: none; border-radius: 4px; background: var(--ink); color: var(--paper); cursor: pointer; }
button:hover { background: var(--filled); }
button.link { background: none; color: var(--danger); padding: 0; font-size: 0.85rem; text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.toolbar { display: flex; gap: 16px; align-items: center; margin-top: 28px; font-size: 0.9rem; flex-wrap: wrap; }
.toolbar a { color: var(--ink); }
.borrower-link { font-size: 0.82rem; color: var(--muted); word-break: break-all; }

.login { max-width: 340px; margin: 18vh auto 0; }
.login form { display: flex; flex-direction: column; gap: 10px; }
.error { color: var(--danger); font-size: 0.9rem; }

footer { margin-top: 48px; font-size: 0.78rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 12px; }

@media (max-width: 480px) {
  .yearrow .ylabel { width: 28px; font-size: 0.6rem; }
  .num-card .value { font-size: 1.4rem; }
  .num-card.hero .value { font-size: 1.7rem; }
}

.pager { font-size: 0.85rem; color: var(--muted); margin-top: 10px; }
.pager a { color: var(--ink); }

.badge.forgiven { border-color: var(--accent); color: var(--accent); }