:root {
  --bg: #000000;
  --panel: #171a21;
  --border: #2a2e37;
  --text: #e6e8eb;
  --muted: #9aa2ad;
  --accent: #4f8cff;
  --danger: #e5566d;
  --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(--text);
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  gap: 12px;
  flex-wrap: wrap;
}

.top-bar h1 {
  font-size: 1.4rem;
  margin: 0;
}

.top-bar .who { color: var(--muted); font-size: 0.9rem; }

button, input, select {
  font: inherit;
}

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 14px;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button.danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}

button:hover { filter: brightness(1.1); }

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

.month-picker { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.month-picker input { background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 10px; }

.summary-cards { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.summary-card { flex: 1; min-width: 160px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.summary-card .label { color: var(--muted); font-size: 0.85rem; margin-bottom: 6px; }
.summary-card .value { font-size: 1.6rem; font-weight: 600; }

.category-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 0.9rem; }
.category-bar-row .cat-name { width: 130px; flex-shrink: 0; color: var(--muted); }
.category-bar-row .cat-total { width: 90px; flex-shrink: 0; text-align: right; }
.category-bar-track { flex: 1; background: var(--bg); border-radius: 6px; height: 10px; overflow: hidden; }
.category-bar-fill { height: 100%; background: var(--accent); }

form.expense-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
form.expense-form .field { display: flex; flex-direction: column; gap: 4px; }
form.expense-form label { font-size: 0.8rem; color: var(--muted); }
form.expense-form input, form.expense-form select { background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 10px; }
form.expense-form input[name="description"] { min-width: 180px; flex: 1; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--muted); font-weight: 500; }
td.amount, th.amount { text-align: right; }
td.actions { text-align: right; white-space: nowrap; }
td.actions button { padding: 4px 10px; font-size: 0.8rem; margin-left: 6px; }

.empty-state { color: var(--muted); padding: 20px 0; text-align: center; }

.app-footer { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 24px 0 0; }

/* Login page */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-panel { width: 100%; max-width: 320px; }
.login-panel h1 { font-size: 1.3rem; margin-top: 0; }
.login-panel .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.login-panel label { font-size: 0.85rem; color: var(--muted); }
.login-panel input { background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; }
.login-panel button { width: 100%; margin-top: 6px; }
.error-msg { color: var(--danger); font-size: 0.85rem; min-height: 1.2em; margin-top: 8px; }

/* Mobile */
@media (max-width: 640px) {
  .wrap { padding: 16px 12px 48px; }

  .top-bar { flex-direction: column; align-items: flex-start; }
  .top-bar > div { display: flex; align-items: center; gap: 10px; }

  .panel { padding: 14px; }

  .summary-cards { flex-direction: column; }
  .summary-card { min-width: 0; }

  .category-bar-row { flex-wrap: wrap; row-gap: 4px; }
  .category-bar-row .cat-name { width: auto; flex: 1 1 100%; }
  .category-bar-row .cat-total { width: auto; margin-left: auto; }

  form.expense-form { flex-direction: column; align-items: stretch; }
  form.expense-form .field,
  form.expense-form input[name="description"] {
    width: 100%;
    min-width: 0;
  }
  form.expense-form button { width: 100%; }

  table, thead, tbody, th, td, tr { display: block; }
  thead { position: absolute; left: -9999px; }
  tbody tr {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 12px;
    margin-bottom: 12px;
  }
  td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    border-bottom: none;
    text-align: right;
  }
  td[data-label]::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 0.8rem;
    text-align: left;
  }
  td.actions { justify-content: flex-end; padding-top: 10px; }
  td.actions button { margin-left: 0; }
}