:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e8e9ec;
  --muted: #9aa1ad;
  --accent: #e372ff;
  --accent-2: #bf45f0;
  --danger: #e8555f;
  --radius: 10px;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

 
* { box-sizing: border-box; }
 
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% -10%, #1b2030 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
}
 
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(23, 26, 33, 0.7);
  position: sticky;
  top: 0;
  backdrop-filter: blur(6px);
  z-index: 5;
}
 
header h1 {
  font-size: 1.15rem;
  margin: 0;
  letter-spacing: 0.02em;
}
 
header h1::before {
  content: "📻 ";
}
 
.sheet-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}
 
.sheet-picker label {
  color: var(--muted);
  font-size: 0.85rem;
}
 
select, input, button {
  font-family: inherit;
  font-size: 0.95rem;
}
 
select, input[type=text], input[type=number], input[type=date], input[type=password] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
}
 
select:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}
 
button {
  background: var(--accent);
  color: #1a1000;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s;
}
 
button:hover { filter: brightness(1.1); }
button:active { filter: brightness(0.9); }
 
#refreshBtn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 12px;
}
 
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  display: grid;
  gap: 20px;
}
 
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
 
.card h2 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
 
.hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 4px 0 16px;
}
 
form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  align-items: end;
}
 
form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--muted);
}
 
form button {
  height: 40px;
}
 
.msg {
  margin: 12px 0 0;
  font-size: 0.88rem;
  min-height: 1.2em;
}
 
.msg.ok { color: var(--accent-2); }
.msg.error, .error { color: var(--danger); }
 
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 6px;
  font-size: 0.86rem;
}
 
th, td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
 
th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
 
tr:hover td { background: var(--panel-2); }
 
.hidden { display: none !important; }
 
.row-btn {
  padding: 4px 10px;
  font-size: 0.78rem;
  margin-right: 6px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}
 
.row-btn:last-child { margin-right: 0; }
 
.row-btn.danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
 
#revenueTable td input, #expenseTable td input {
  width: 100%;
  padding: 4px 6px;
  font-size: 0.85rem;
}