:root {
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #1c1b19;
  --muted: #6b6a66;
  --accent: #1f6f5c;
  --accent-ink: #ffffff;
  --border: #e4e2dc;
  --danger: #b5432a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 20px 16px 64px; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 8px; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); font-size: 0.92rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

input, select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  margin-top: 4px;
}

label { display: block; font-size: 0.88rem; font-weight: 600; margin-top: 10px; }
label.inline { display: flex; align-items: center; gap: 8px; font-weight: 500; }
label.inline input { width: auto; margin: 0; }

button {
  cursor: pointer;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 600;
}
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); padding: 4px 10px; font-weight: 500; font-size: 0.85rem; }
button.link { background: none; color: var(--accent); border: none; padding: 0; font-weight: 600; text-decoration: underline; }
button:disabled { opacity: 0.55; cursor: default; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 160px; }

nav.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
nav.tabs button {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--border);
  font-weight: 500;
}
nav.tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

header.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
header.topbar .right { display: flex; gap: 10px; align-items: center; }

.hidden { display: none !important; }

table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 0.92rem; }
th, td { text-align: left; padding: 7px 6px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.02em; }
tfoot td { font-weight: 700; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef3f1;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
}

.error { color: var(--danger); font-size: 0.9rem; margin-top: 6px; }
.success { color: var(--accent); font-size: 0.9rem; margin-top: 6px; }

.category-card { border-left: 4px solid var(--accent); }
.result-box { background: #eef3f1; border-radius: 8px; padding: 12px 14px; margin-top: 10px; }
.result-box .amount { font-size: 1.3rem; font-weight: 700; color: var(--accent); }

footer.disclaimer {
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}