/* Pounds & Paperwork — shared styles.
   Layout: one calm reading column for guides; a two-pane "form + result slip" workbench for tools.
   Motif: UK paperwork — numbered form boxes, tinted fill areas, a rubber-stamp verdict. */
:root {
  --paper: #f3f4f8;      /* page ground, cool form-paper */
  --card: #ffffff;       /* sheets */
  --ink: #1f2433;        /* text, navy ink */
  --muted: #5d6377;
  --line: #dcdfe9;
  --fill: #eaf0fa;       /* form box fill */
  --buy: #2f4fa8;        /* post-box blue: buying, brand accent */
  --rent: #a86a1f;       /* pound-coin brass: renting */
  --accent: var(--buy);
  --on-accent: #ffffff;
  --ok: #2e7a4f; --ok-bg: #e2f2e8;
  --warn: #87590a; --warn-bg: #faefd3;
  --err: #a1302a; --err-bg: #fbe4e2;
  --focus: #2f4fa8;
  --shadow: 0 1px 2px rgba(31, 36, 51, .05), 0 10px 30px -12px rgba(31, 36, 51, .14);
  --font-display: "Gabarito", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --font-num: "Spline Sans Mono", ui-monospace, Menlo, monospace;
  --r-sheet: 16px;
  --r-ctl: 10px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14161d; --card: #1c1f29; --ink: #e6e8f0; --muted: #9ba1b5; --line: #2d3142; --fill: #232a3c;
    --buy: #91a8f0; --rent: #e0aa5c; --on-accent: #10131c;
    --ok: #82d3a0; --ok-bg: #173323; --warn: #f0c46a; --warn-bg: #3a2e12; --err: #ff9b92; --err-bg: #3d1a18;
    --focus: #91a8f0; --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #14161d; --card: #1c1f29; --ink: #e6e8f0; --muted: #9ba1b5; --line: #2d3142; --fill: #232a3c;
  --buy: #91a8f0; --rent: #e0aa5c; --on-accent: #10131c;
  --ok: #82d3a0; --ok-bg: #173323; --warn: #f0c46a; --warn-bg: #3a2e12; --err: #ff9b92; --err-bg: #3d1a18;
  --focus: #91a8f0; --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .5);
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 16px/1.6 var(--font-body); }
a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }
.wrap { max-width: 1200px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* ---- Nav ---- */
.site-nav { padding-block: 14px; }
.site-nav .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 1.2rem/1 var(--font-display); letter-spacing: -0.01em; }
.brand .amp { color: var(--rent); font-weight: 600; }
.brand svg { flex: none; }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; margin: 0; padding: 0; font-size: 0.95rem; }
.site-nav ul a { color: var(--ink); text-decoration: none; padding: 6px 12px; border-radius: 999px; }
.site-nav ul a:hover { background: var(--card); }
.site-nav ul a[aria-current="page"] { background: var(--card); box-shadow: var(--shadow); }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 700 0.95rem/1 var(--font-body); padding: 12px 18px; border-radius: 999px; border: 1px solid transparent; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-quiet { background: var(--card); color: var(--ink); border-color: var(--line); }
.btn-quiet:hover { border-color: var(--muted); }
.btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; filter: none; }
.chip { display: inline-block; font: 700 0.7rem/1 var(--font-body); letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 9px; border-radius: 999px; background: var(--fill); color: var(--muted); }
.chip.live { background: var(--ok-bg); color: var(--ok); }

/* ---- Footer ---- */
.site-footer { margin-top: 72px; border-top: 1px solid var(--line); padding-block: 28px 40px; font-size: 0.88rem; color: var(--muted); }
.site-footer .wrap { display: grid; gap: 14px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.site-footer nav a { color: var(--ink); }
.site-footer p { margin: 0; max-width: 92ch; }
.kofi-off { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px dashed var(--line); border-radius: 999px; color: var(--muted); }
.copy-row { display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.copy-row button { font: inherit; font-size: 0.8rem; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }

/* ---- Content pages ---- */
.page { max-width: 760px; margin: 0 auto; padding-top: 28px; }
.page h1 { font: 800 clamp(2rem, 5vw, 2.8rem)/1.05 var(--font-display); letter-spacing: -0.02em; margin: 0 0 12px; text-wrap: balance; }
.page .lede { color: var(--muted); font-size: 1.12rem; margin: 0 0 32px; max-width: 60ch; }
.page h2 { font: 700 1.35rem/1.25 var(--font-display); margin: 40px 0 8px; text-wrap: balance; }
.page h3 { font: 700 1.05rem/1.3 var(--font-display); margin: 22px 0 4px; }
.page p, .page li { max-width: 66ch; }
.page li + li { margin-top: 6px; }
.page .updated { font-size: 0.85rem; color: var(--muted); }
.note { background: var(--fill); border-radius: var(--r-sheet); padding: 16px 20px; margin: 24px 0; }
.sheet { background: var(--card); border-radius: var(--r-sheet); box-shadow: var(--shadow); }
.table-wrap { overflow-x: auto; margin: 20px 0; }
table.cmp { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 0.95rem; background: var(--card); border-radius: var(--r-sheet); box-shadow: var(--shadow); overflow: hidden; }
table.cmp th, table.cmp td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
table.cmp tr:last-child td { border-bottom: 0; }
table.cmp th { font: 700 0.9rem var(--font-display); background: var(--fill); }
table.cmp td.y { color: var(--accent); font-weight: 700; text-align: center; }
table.cmp td.n { color: var(--muted); text-align: center; }
.buybox { padding: 24px; display: grid; gap: 12px; margin: 28px 0; }
.price { font: 800 2.4rem/1 var(--font-display); }
.price small { font: 400 0.95rem var(--font-body); color: var(--muted); margin-left: 6px; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }