/* Single Income Budget Planner — clean, fast, mobile-friendly. System fonts only. */

:root {
  --ink: #1c2430;
  --muted: #5b6675;
  --line: #d9dee6;
  --bg: #f7f8fa;
  --card: #ffffff;
  --accent: #166534;
  --accent-bg: #e7f4ec;
  --warn: #9a3412;
  --warn-bg: #fff3e8;
  --danger: #b91c1c;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

a { color: #14532d; }
a:hover { text-decoration: none; }

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 12px 20px;
}
.site-header .wrap {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: baseline;
}
.site-name { font-weight: 700; font-size: 19px; color: var(--ink); text-decoration: none; }
.site-nav a { margin-right: 16px; font-size: 15px; }

main { max-width: 960px; margin: 0 auto; padding: 24px 20px 64px; }

h1 { font-size: 32px; line-height: 1.25; margin: 8px 0 12px; }
h2 { font-size: 24px; margin: 40px 0 10px; padding-top: 8px; border-top: 1px solid var(--line); }
h3 { font-size: 19px; margin: 28px 0 8px; }
h4 { font-size: 16px; margin: 18px 0 6px; }
p { margin: 8px 0; }
.lede { font-size: 19px; color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--card);
  padding: 20px;
  font-size: 14px;
  color: var(--muted);
}
.site-footer .wrap { max-width: 960px; margin: 0 auto; }
.site-footer a { margin-right: 14px; }

/* ---------- Planner tool ---------- */

.planner {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0;
}
.planner h2 { border-top: none; margin-top: 0; padding-top: 0; }
.planner h3 { margin-top: 26px; }

.p-intro { color: var(--muted); }
.p-hint { color: var(--muted); font-size: 15px; }
.p-warn { color: var(--warn); background: var(--warn-bg); padding: 8px 12px; border-radius: 6px; }
.p-total { font-size: 18px; }
.p-monthly { font-size: 14px; color: var(--muted); white-space: nowrap; }

.p-bar, .p-presets, .p-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0; }
.p-presets { border-top: 1px dashed var(--line); padding-top: 12px; }

button {
  font: inherit;
  font-size: 15px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}
button:hover { background: #eef1f4; }
button.p-danger { color: var(--danger); border-color: #e5b4b4; }

input[type="text"], input[type="number"], input[type="month"], select {
  font: inherit;
  font-size: 15px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  max-width: 100%;
}
input[type="number"] { width: 110px; }
input[type="month"] { width: 170px; }

.p-rows { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.p-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.p-row input[type="text"] { flex: 1 1 160px; }
.p-row label { font-size: 14px; color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }
.p-paid { white-space: nowrap; }
.p-cat { border-top: 1px dashed var(--line); padding: 6px 0 10px; }
.p-irregular { background: var(--bg); border-radius: 8px; padding: 12px 14px; margin: 14px 0; }

.p-summary {
  background: var(--accent-bg);
  border-radius: var(--radius);
  padding: 14px 18px;
}
.p-summary p { margin: 6px 0; }
.p-left { font-size: 21px; }
.p-positive strong { color: var(--accent); }
.p-negative strong { color: var(--danger); }

.p-bars { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.p-bar-row { display: flex; gap: 10px; align-items: center; font-size: 15px; }
.p-bar-label { flex: 0 0 110px; }
.p-bar-track { flex: 1; height: 12px; background: #e8ebef; border-radius: 6px; overflow: hidden; }
.p-bar-fill { display: block; height: 100%; background: var(--accent); border-radius: 6px; }
.p-bar-value { flex: 0 0 130px; text-align: right; color: var(--muted); white-space: nowrap; }

.p-table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 10px 0; }
.p-table th, .p-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.p-table th { background: var(--bg); }

.p-file { font-size: 15px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; cursor: pointer; background: #fff; }
.p-file input { display: none; }

.p-disclaimer {
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 12px;
}

/* ---------- Content ---------- */

.faq-item { margin: 16px 0; }
.faq-item h3 { margin-bottom: 4px; }
.guide-links { list-style: none; padding: 0; }
.guide-links li { margin: 8px 0; }
.worksheet table, table.wide { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.worksheet th, .worksheet td, table.wide th, table.wide td { border: 1px solid var(--line); padding: 9px 10px; text-align: left; vertical-align: top; }
.worksheet th { background: var(--bg); }
.worksheet td.blank { height: 34px; }
.worksheet h2 { border-top: none; }

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  body { font-size: 16px; }
  h1 { font-size: 26px; }
  main { padding: 16px 14px 48px; }
  .planner { padding: 14px; }
  .p-bar-label { flex-basis: 90px; }
  .p-bar-value { flex-basis: 100px; font-size: 13px; }
  input[type="number"] { width: 96px; }
}

/* ---------- Print ---------- */

@media print {
  body { background: #fff; font-size: 13px; }
  .site-header, .site-footer, .p-presets, .p-actions, button, .p-file { display: none !important; }
  main { max-width: none; padding: 0; }
  .planner { border: none; padding: 0; }
  a { color: var(--ink); text-decoration: none; }
  h2 { break-after: avoid; }
  .p-cat, .p-summary, .worksheet table { break-inside: avoid; }
  body.print-blank .planner-area { display: none !important; }
  body.print-completed .worksheet-area { display: none !important; }
}