:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #2a2e38;
  --text: #e8e9ec;
  --muted: #8b91a0;
  --accent: #16a34a;
  --accent-hover: #15803d;
  --danger: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

.screen { min-height: 100vh; }

/* Login */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 100%;
  max-width: 340px;
  text-align: center;
}
.login-card input {
  width: 100%;
  margin: 16px 0;
}

/* Layout */
header {
  padding: 16px 20px;
  padding-top: max(16px, env(safe-area-inset-top)); /* clears the iPhone notch/Dynamic Island in standalone mode */
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}
header h1 { font-size: 18px; margin: 0 0 10px; }
nav { display: flex; gap: 8px; flex-wrap: wrap; }
.tab-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  min-height: 38px;
}
.tab-btn.active { color: var(--text); border-color: var(--accent); background: rgba(22,163,74,0.12); }

main {
  padding: 16px;
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: max(60px, env(safe-area-inset-bottom)); /* clears the home-indicator bar */
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
.card h2 { font-size: 15px; margin: 0 0 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.card-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.card-header-row h2 { margin: 0; }
button.small.secondary { margin-top: 0; padding: 6px 12px; }

.collapse-arrow {
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  padding: 8px;
  margin: -8px;
  transition: transform 0.15s ease;
  user-select: none;
  flex-shrink: 0;
}
.card.collapsed .collapse-arrow { transform: rotate(-90deg); }
.card.collapsed .card-body { display: none; }
.card h2.collapse-toggle { cursor: pointer; flex: 1; }
.list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1d212b;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
}
.list-item .meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.row-inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* Account rows in Settings have a select + two buttons - too much to
   fit on one line on a phone. Stack the controls under the account
   info instead of squeezing them sideways. */
.account-row { flex-direction: column; align-items: stretch; gap: 10px; }
.account-row-controls { width: 100%; }
.account-row-controls select { flex: 1 1 140px; min-width: 0; }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}
.row label { flex: 1 1 100%; font-size: 13px; color: var(--muted); }

input, select {
  background: #1d212b;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  /* 16px minimum - iOS Safari auto-zooms the whole page on focus for any
     input under 16px, which feels like a bug even though it's intentional
     iOS behavior. This is the standard fix. */
  font-size: 16px;
  flex: 1;
  min-height: 44px; /* Apple's recommended minimum touch target size */
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 600;
  min-height: 44px;
}
button.primary { background: var(--accent); color: white; }
button.primary:hover { background: var(--accent-hover); }
button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); margin-top: 8px; }
button.small { padding: 6px 10px; font-size: 12px; min-height: 34px; }

.muted { color: var(--muted); font-size: 13px; }
.error-text { color: var(--danger); font-size: 13px; min-height: 18px; }

.allocation-line {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.allocation-line.total { font-weight: 700; border-bottom: none; padding-top: 12px; }

.flag-badge {
  display: inline-block;
  background: rgba(239,68,68,0.15);
  color: var(--danger);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  margin-top: 4px;
}

.list-item.clickable { cursor: pointer; }
.list-item.clickable:hover { border-color: var(--accent); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
.modal-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 640px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 18px;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-header h2 { margin: 0; font-size: 16px; }

.pie-chart-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.pie-chart {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--border); /* shows through as "unallocated" when total < 100% */
}
.pie-legend { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.pie-legend-item { display: flex; align-items: center; gap: 8px; }
.pie-legend-swatch { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; }