:root {
  color-scheme: light;
  --paper: #efeae0;
  --sheet: #fbf8f1;
  --ink: #1a1714;
  --muted: #5c564e;
  --faint: #7a7268;
  --line: #e4dacc;
  --rule: #d3c8b4;
  --accent: #8c2f1b;
  --accent-ink: #fffaf6;
  --good: #1b6b42;
  --bad: #9b2c22;
  --field: #fffdf8;
  --shadow: 0 18px 50px rgba(48, 32, 14, 0.08);
  --sans: ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --serif: ui-serif, Georgia, "Iowan Old Style", Palatino, "Times New Roman", serif;
  --focus: #8c2f1b;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #12110f;
  --sheet: #1c1a17;
  --ink: #f4efe6;
  --muted: #c4baae;
  --faint: #9a9084;
  --line: #322e29;
  --rule: #463f36;
  --accent: #e7b089;
  --accent-ink: #1a120c;
  --good: #8dcea8;
  --bad: #f0aaa2;
  --field: #141210;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
  --focus: #e7b089;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #12110f;
    --sheet: #1c1a17;
    --ink: #f4efe6;
    --muted: #c4baae;
    --faint: #9a9084;
    --line: #322e29;
    --rule: #463f36;
    --accent: #e7b089;
    --accent-ink: #1a120c;
    --good: #8dcea8;
    --bad: #f0aaa2;
    --field: #141210;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
    --focus: #e7b089;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 400px at 10% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 50%),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.45;
}

::selection { background: color-mix(in srgb, var(--accent) 28%, white); }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--sheet);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 3;
}
.skip:focus { top: 12px; }

header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 28px 8px;
}

h1 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 560;
  letter-spacing: -0.03em;
  line-height: 1;
}

.brand p { margin: 6px 0 0; color: var(--muted); }

.seal {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: var(--accent);
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--accent-ink) 35%, transparent);
}

.actions { display: flex; flex-wrap: wrap; gap: 8px; }

button {
  font: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { background: color-mix(in srgb, var(--ink) 6%, transparent); }
button.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 650;
}
button.primary:hover { filter: brightness(1.06); background: var(--accent); }
button.primary:focus-visible { outline-color: var(--ink); }

.meter {
  max-width: 1180px;
  margin: 8px auto 0;
  padding: 8px 28px 0;
}
.meter-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--muted);
}
#meter-label {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.meter-track {
  margin-top: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--line);
  overflow: hidden;
}
#meter-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: inherit;
}

.banner {
  max-width: 1124px;
  margin: 12px auto 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--bad) 12%, var(--sheet));
  color: var(--ink);
  border: 1px solid color-mix(in srgb, var(--bad) 35%, var(--line));
}

.pane-toggle {
  display: none;
  max-width: 1180px;
  margin: 12px auto 0;
  padding: 0 16px;
  gap: 8px;
}
.pane-toggle button[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.desk {
  display: grid;
  grid-template-columns: minmax(300px, 440px) minmax(0, 1fr);
  gap: 22px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 28px 40px;
  align-items: start;
}

fieldset {
  border: 0;
  margin: 0 0 18px;
  padding: 0;
}
legend {
  padding: 0;
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 650;
}

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field span { font-size: 0.92rem; font-weight: 600; }
.field input, .field textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  background: var(--field);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 10px 12px;
}
.field input::placeholder, .field textarea::placeholder { color: var(--faint); opacity: 1; }
.field textarea { resize: vertical; min-height: 76px; line-height: 1.4; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] {
  border-color: var(--bad);
}
.err { color: var(--bad); font-size: 0.8rem; }
.money-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.money-grid .field:last-child { grid-column: 1 / -1; }
.fine { margin: 4px 0 0; color: var(--faint); font-size: 0.82rem; }

.sheet-wrap { position: sticky; top: 16px; }
.sheet {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 28px 28px 22px;
}
.eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}
.sheet h2 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 560;
  letter-spacing: -0.03em;
  line-height: 1.02;
}
.dek {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.12rem;
  color: var(--muted);
}
.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 26px;
  margin-top: 20px;
}
.sheet h3 {
  margin: 0 0 6px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.sheet section p {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.ghost { color: var(--faint); font-style: italic; }
.math { margin-top: 20px; }
.math #math-note { color: var(--muted); font-size: 0.92rem; overflow-wrap: anywhere; }
.tiles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}
.tiles div {
  background: color-mix(in srgb, var(--ink) 5%, transparent);
  border-radius: 12px;
  padding: 10px 12px;
  min-width: 0;
}
.tiles strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  font-weight: 560;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.tiles strong.bad { color: var(--bad); }
.tiles strong.good { color: var(--good); }
.tiles small { color: var(--muted); font-size: 0.72rem; }

@media (max-width: 860px) {
  header, .meter { padding-left: 16px; padding-right: 16px; }
  .pane-toggle { display: flex; }
  .desk { grid-template-columns: 1fr; padding: 14px 16px 32px; }
  .sheet-wrap { position: static; }
  body[data-pane="write"] .sheet-wrap { display: none; }
  body[data-pane="read"] .form-wrap { display: none; }
  .tiles { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .money-grid, .grid2 { grid-template-columns: 1fr; }
  .money-grid .field:last-child { grid-column: auto; }
  header { align-items: stretch; }
}

@media print {
  body { background: white; color: black; }
  header, .meter, .form-wrap, .pane-toggle, .skip, .banner { display: none !important; }
  .desk { display: block; padding: 0; max-width: none; }
  .sheet-wrap { display: block !important; position: static; }
  .sheet { box-shadow: none; border: none; border-radius: 0; }
}

@media (prefers-reduced-motion: reduce) {
  #meter-fill { transition: none; }
}