:root {
  --green-900: #1b4332;
  --green-800: #1e4d3a;
  --green-700: #2d6a4f;
  --green-500: #40916c;
  --green-200: #95d5b2;
  --green-100: #d8f3dc;
  --cream: #f8f5f0;
  --cream-dark: #efe8dc;
  --ink: #1a1a1a;
  --muted: #5c665f;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --card: #ffffff;
  --shadow: 0 8px 24px rgba(27, 67, 50, 0.12);
  --radius: 16px;
  --tap: 48px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  min-height: 100%;
  -webkit-tap-highlight-color: transparent;
}
body { padding-bottom: calc(76px + var(--safe-b)); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(180deg, var(--green-800), var(--green-700));
  color: #fff;
  padding: calc(14px + var(--safe-t)) 16px 16px;
  box-shadow: var(--shadow);
}
.app-header h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.app-header p {
  margin: 4px 0 0;
  opacity: 0.9;
  font-size: 0.85rem;
}

.screen { display: none; padding: 16px; max-width: 560px; margin: 0 auto; }
.screen.active { display: block; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}
.card h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
  color: var(--green-900);
}

.muted { color: var(--muted); font-size: 0.9rem; }
.total-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-100);
  color: var(--green-900);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 700;
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--tap);
  padding: 12px 18px;
  border: none;
  border-radius: 12px;
  background: var(--green-700);
  color: #fff;
  font-weight: 650;
  width: 100%;
  transition: transform 0.08s ease, opacity 0.15s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; }
.btn-secondary {
  background: #fff;
  color: var(--green-800);
  border: 2px solid var(--green-200);
}
.btn-danger {
  background: var(--danger);
}
.btn-ghost {
  background: transparent;
  color: var(--green-800);
  border: none;
  width: auto;
  min-height: 40px;
  padding: 8px 12px;
}
.btn-row { display: grid; gap: 10px; margin-top: 12px; }
.btn-row.two { grid-template-columns: 1fr 1fr; }

label.field {
  display: block;
  margin-bottom: 12px;
}
label.field > span {
  display: block;
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--green-900);
  margin-bottom: 6px;
}
input[type="text"],
input[type="date"],
input[type="number"],
input[type="search"],
textarea,
select {
  width: 100%;
  min-height: var(--tap);
  border: 2px solid var(--cream-dark);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
}
textarea { min-height: 88px; resize: vertical; }
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(64,145,108,0.2);
}

.preset-row {
  display: grid;
  gap: 10px;
  margin: 12px 0;
}
.preset-btn {
  text-align: left;
  background: var(--cream);
  border: 2px solid var(--cream-dark);
  border-radius: 14px;
  padding: 14px;
  min-height: var(--tap);
}
.preset-btn strong { display: block; color: var(--green-900); }
.preset-btn span { color: var(--muted); font-size: 0.85rem; }
.preset-btn.selected {
  border-color: var(--green-500);
  background: var(--green-100);
}

.nav {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-top: 1px solid var(--cream-dark);
  padding: 6px 4px calc(6px + var(--safe-b));
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
}
.nav button {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-height: 56px;
  padding: 6px 2px;
}
.nav button.active { color: var(--green-700); }
.nav .nav-ico { font-size: 1.25rem; line-height: 1; }

.month-group { margin-bottom: 18px; }
.month-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  gap: 8px;
}
.month-head h3 { margin: 0; font-size: 1rem; color: var(--green-900); }

.expense-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 10px;
  align-items: center;
  background: #fff;
  border-radius: 14px;
  padding: 10px;
  margin-bottom: 8px;
  box-shadow: 0 2px 10px rgba(27,67,50,0.06);
}
.expense-item .thumb {
  width: 64px; height: 64px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--cream-dark);
}
.expense-item .thumb.placeholder {
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 1.4rem;
}
.expense-item .meta strong { display: block; font-size: 0.95rem; }
.expense-item .meta small { color: var(--muted); display: block; line-height: 1.35; }
.expense-item .amt { font-weight: 750; color: var(--green-900); white-space: nowrap; }

.empty {
  text-align: center;
  padding: 36px 16px;
  color: var(--muted);
}
.empty .big { font-size: 2.4rem; margin-bottom: 8px; }

.receipt-preview {
  width: 100%;
  max-height: 180px;
  object-fit: contain;
  border-radius: 12px;
  background: var(--cream-dark);
  margin-top: 8px;
}
.file-btn {
  position: relative;
  overflow: hidden;
}
.file-btn input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.gl-trigger {
  width: 100%;
  min-height: var(--tap);
  border: 2px solid var(--cream-dark);
  border-radius: 12px;
  background: #fff;
  text-align: left;
  padding: 10px 12px;
}
.gl-trigger .code { font-weight: 750; color: var(--green-800); }
.gl-trigger .desc { color: var(--muted); font-size: 0.9rem; }

.sheet {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0,0,0,0.45);
  display: none;
  align-items: flex-end;
  justify-content: center;
}
.sheet.open { display: flex; }
.sheet-panel {
  width: 100%;
  max-width: 560px;
  max-height: 88vh;
  background: #fff;
  border-radius: 20px 20px 0 0;
  padding: 12px 16px calc(16px + var(--safe-b));
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sheet-handle {
  width: 42px; height: 4px; border-radius: 999px;
  background: #d0d5dd; margin: 4px auto 8px;
}
.sheet-panel h3 { margin: 0; color: var(--green-900); }
.gl-list {
  overflow: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}
.gl-section {
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 12px 0 6px;
  text-transform: uppercase;
}
.gl-option {
  width: 100%;
  text-align: left;
  border: none;
  background: var(--cream);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 6px;
  min-height: var(--tap);
}
.gl-option.fav { background: var(--green-100); }
.gl-option .code { font-weight: 750; color: var(--green-800); margin-right: 8px; }
.star {
  float: right;
  border: none;
  background: transparent;
  font-size: 1.2rem;
  min-height: 40px;
  min-width: 40px;
  color: var(--muted);
}
.star.on { color: #e9a825; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(88px + var(--safe-b));
  transform: translateX(-50%) translateY(20px);
  background: var(--green-900);
  color: #fff;
  padding: 12px 16px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: 0.2s ease;
  z-index: 80;
  max-width: 90%;
  text-align: center;
  font-weight: 600;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.confirm {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(0,0,0,0.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.confirm.open { display: flex; }
.confirm-box {
  background: #fff;
  border-radius: 16px;
  padding: 18px;
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow);
}
.confirm-box h3 { margin: 0 0 8px; }
.confirm-box p { margin: 0 0 16px; color: var(--muted); }

.settings-list { display: grid; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-100);
  color: var(--green-900);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 650;
  margin: 2px;
}
.chip button {
  border: none;
  background: transparent;
  color: var(--green-900);
  font-size: 1rem;
  min-height: 28px;
  min-width: 28px;
}

.banner {
  background: #fff8eb;
  border: 1px solid #f5d9a8;
  color: #7a4d00;
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.hidden { display: none !important; }