:root {
  --ink: #1c2b3a;
  --paper: #f6f4ef;
  --surface: #ffffff;
  --accent: #b4552d;
  --accent-dark: #8f3f1e;
  --muted: #5b6672;
  --border: #d8d2c6;
  --danger: #a03024;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.5;
}

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 {
  font-size: 2rem;
  margin: 0 0 0.25rem;
}

.lede { color: var(--muted); margin-top: 0; }

form {
  display: grid;
  grid-template-columns: 1fr 140px 160px auto;
  gap: 1rem;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1.5rem;
}

.field { display: flex; flex-direction: column; }

label {
  font-weight: bold;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}

input {
  font: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  width: 100%;
}

input:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
  background: #fdf1ef;
}

.error {
  color: var(--danger);
  font-size: 0.8rem;
  margin: 0.3rem 0 0;
}

button {
  font: inherit;
  font-weight: bold;
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius);
  padding: 0.55rem 1.25rem;
  cursor: pointer;
  margin-top: 1.4rem;
  white-space: nowrap;
}

button:hover { background: var(--accent-dark); }

h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; }

td input {
  border: 1px solid transparent;
  background: transparent;
  padding: 0.25rem 0.4rem;
}

td input:hover { border-color: var(--border); background: var(--paper); }

.remove-btn {
  margin: 0;
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}

.remove-btn:hover { background: var(--danger); color: #ffffff; }

.empty { color: var(--muted); font-style: italic; }

.total-card {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  margin-top: 2rem;
}

.total-label { margin: 0; font-size: 1.1rem; }
.total-value {
  margin: 0;
  font-size: 2rem;
  font-weight: bold;
  font-variant-numeric: tabular-nums;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 700px) {
  form { grid-template-columns: 1fr 1fr; }
  form .field:first-child { grid-column: 1 / -1; }
  #add-btn { grid-column: 1 / -1; margin-top: 0; }
  th, td { padding: 0.45rem 0.4rem; }
}