:root {
  --bg: #14171c;
  --panel: #1b1f26;
  --line: #2a2f38;
  --ink: #e7e5df;
  --ink-dim: #8c9198;
  --accent: #d9a441;
  --up: #6fae7b;
  --down: #c9705f;
  --radius: 6px;
}

* { box-sizing: border-box; }

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

.figures, input, select {
  font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line);
}

header h1 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0;
}

header h1 .dot { color: var(--accent); }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px;
  display: none;
}

main.visible { display: block; }

#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#login-screen.hidden { display: none; }

.login-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  width: 280px;
}

.login-card h1 { margin-top: 0; font-size: 18px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.panel h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  margin: 0 0 16px;
}

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

input, select, button {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 14px;
}

button {
  cursor: pointer;
  border-color: var(--accent);
  color: var(--accent);
  transition: background 0.15s;
}

button:hover { background: rgba(217, 164, 65, 0.1); }

button.primary { background: var(--accent); color: #14171c; font-weight: 600; }
button.primary:hover { opacity: 0.9; background: var(--accent); }

.balance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.balance-field label {
  display: block;
  font-size: 12px;
  color: var(--ink-dim);
  margin-bottom: 4px;
}

.balance-field input { width: 100%; }

canvas { max-width: 100%; }

.notes-list { list-style: none; padding: 0; margin: 12px 0 0; }
.notes-list li {
  padding: 8px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

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

#tabs {
  display: flex;
  gap: 4px;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--ink-dim);
  padding: 12px 14px;
  white-space: nowrap;
}

.tab-btn:hover { background: none; color: var(--ink); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-panel { display: none; }
.tab-panel.visible { display: block; }

.hint { color: var(--ink-dim); font-size: 12px; margin: 8px 0 0; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 6px 8px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--ink-dim); font-weight: 500; text-transform: uppercase; font-size: 11px; letter-spacing: 0.04em; }
td input, td select { padding: 4px 6px; font-size: 13px; width: 100%; min-width: 70px; }
td.num { font-family: "SF Mono", "Roboto Mono", ui-monospace, monospace; }
.var-up { color: var(--up); }
.var-down { color: var(--down); }
button.small { padding: 4px 8px; font-size: 12px; }