:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --text: #1a1d23;
  --muted: #6b7280;
  --border: #e2e4e9;
  --accent: #2f6feb;
  --danger: #d64545;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --card-bg: #1d2025;
    --text: #eceef1;
    --muted: #9aa1ab;
    --border: #30343b;
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px calc(16px + env(safe-area-inset-right)) calc(64px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));
}

header h1 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

#entry-form {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.field { display: flex; flex-direction: column; gap: 4px; }
.field-wide { grid-column: 1 / -1; }

label { font-size: 0.8rem; color: var(--muted); }

input, textarea {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 16px; /* prevents iOS Safari from auto-zooming on focus */
  min-height: 44px; /* Apple HIG minimum tap target */
}

textarea { resize: vertical; min-height: 44px; }

button {
  grid-column: 1 / -1;
  padding: 10px 16px;
  min-height: 44px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  justify-self: start;
}

button:hover { opacity: 0.9; }

.error { color: var(--danger); font-size: 0.9rem; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td.note-cell { white-space: normal; max-width: 260px; }

.num { text-align: right; }

.delete-btn {
  grid-column: unset;
  background: none;
  border: 1px solid var(--border);
  color: var(--danger);
  font-weight: 500;
  padding: 8px 12px;
  min-height: 36px;
  font-size: 0.8rem;
}

.totals-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.total-pill {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.85rem;
}

.total-pill strong { display: block; font-size: 1rem; }

#empty-state, #category-empty { color: var(--muted); }

.hint { font-size: 0.75rem; color: var(--muted); }

.inline-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  align-items: end;
}

.inline-form button { grid-column: unset; justify-self: start; }

.stat {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.stat-row .stat { margin-top: 0; }

.stat-label { font-size: 0.8rem; color: var(--muted); }
.stat-value { font-size: 1.6rem; font-weight: 700; }
.stat-value.pos { color: #1a8f4c; }
.stat-value.neg { color: var(--danger); }

.category-breakdown {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cat-row {
  display: grid;
  grid-template-columns: 120px 1fr 90px;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
}

.cat-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cat-track {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  height: 10px;
  overflow: hidden;
}

.cat-fill {
  height: 100%;
  background: var(--danger);
}

.cat-amount { text-align: right; }

#forecast-chart, #chart { width: 100%; display: block; }

@media (max-width: 640px) {
  .inline-form { grid-template-columns: 1fr 1fr; }
  #entry-form { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .app { padding-left: calc(12px + env(safe-area-inset-left)); padding-right: calc(12px + env(safe-area-inset-right)); }
  .card { padding: 16px; }
  header h1 { font-size: 1.3rem; }
  #entry-form, .inline-form { grid-template-columns: 1fr; }
  .inline-form button, #entry-form button { width: 100%; justify-self: stretch; }
  .cat-row {
    grid-template-columns: 1fr;
    grid-template-areas: "label" "track" "amount";
    gap: 4px;
  }
  .cat-label { grid-area: label; }
  .cat-track { grid-area: track; }
  .cat-amount { grid-area: amount; text-align: left; }
  th, td { padding: 8px 6px; font-size: 0.85rem; }
}