:root {
  --bg: #1e1e1e;
  --surface: #252526;
  --border: #3c3c3c;
  --text: #d4d4d4;
  --muted: #858585;
  --accent: #569cd6;
  --gold: #d4af37;
  --danger: #f14c4c;
  --radius: 8px;
  --font: "Segoe UI", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.header {
  padding: 1.5rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.25rem;
}

.footer {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1.25rem max(2rem, env(safe-area-inset-bottom));
  font-size: 0.8rem;
  color: var(--muted);
}

.footer p {
  margin: 0 0 0.65rem;
}

.footer p:last-child {
  margin-bottom: 0;
}

.footer-pwa {
  padding-top: 0.35rem;
  border-top: 1px solid var(--border);
}

.footer-donate {
  padding-top: 0.75rem;
  margin-top: 0.35rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.donate-link {
  display: inline-block;
  padding: 0.45rem 1rem;
  border-radius: 4px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.donate-link:hover {
  background: rgba(86, 156, 214, 0.12);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin-bottom: 1.25rem;
}

.card-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

.form-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.form-row input {
  flex: 1;
  min-width: 12rem;
}

.form-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 1fr 1fr;
}

.form-grid .span-2 {
  grid-column: 1 / -1;
}

.form-grid .form-actions {
  grid-column: 1 / -1;
}

@media (max-width: 520px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input[type="text"],
input[type="date"],
input[type="number"] {
  padding: 0.45rem 0.55rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: 4px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  padding: 0.45rem 0.85rem;
}

button:hover {
  background: rgba(86, 156, 214, 0.12);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--muted);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.btn-ghost.danger {
  border-color: rgba(241, 76, 76, 0.5);
  color: var(--danger);
}

.btn-ghost.danger:hover {
  background: rgba(241, 76, 76, 0.1);
}

.child-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.child-title {
  margin: 0;
  font-size: 1.15rem;
}

.child-total {
  margin: 0.25rem 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.child-actions {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.subheading {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}

.entry-add {
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.entry-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.entry-row:last-child {
  border-bottom: none;
}

.entry-amount {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.entry-meta {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.btn-icon {
  padding: 0.1rem 0.4rem;
  border-color: var(--border);
  color: var(--muted);
  line-height: 1.2;
  flex-shrink: 0;
}

.btn-icon.danger:hover {
  color: var(--danger);
  border-color: rgba(241, 76, 76, 0.5);
}

.empty-hint {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}