*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "Myanmar Text", sans-serif;
  background: radial-gradient(circle at top, #0f172a, #020617 55%, #020617);
  color: #e5e7eb;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.subtitle {
  margin: 4px 0 0;
  color: #9ca3af;
}

.user-box {
  background: rgba(15,23,42,0.9);
  padding: 10px 12px;
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.user-box input {
  background: #020617;
  color: #fff;
  padding: 6px 8px;
  border-radius: 8px;
  border: none;
}

.user-box button {
  padding: 7px;
  background: #22c55e;
  color: #052e16;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  cursor: pointer;
}

.current-user {
  color: #a5b4fc;
  font-size: 0.85rem;
}

/* ⭐ Tabs */
.tabs {
  display: inline-flex;
  gap: 8px;
  margin-bottom: 16px;
  background: rgba(15,23,42,0.8);
  padding: 4px;
  border-radius: 999px;
}

.tab {
  border: none;
  padding: 6px 14px;
  border-radius: 999px;
  background: transparent;
  color: #e5e7eb;
  cursor: pointer;
}

.tab-active {
  background: #22c55e;
  color: #052e16;
  font-weight: 600;
}

.page-hidden {
  display: none;
}

.card {
  background: rgba(15,23,42,0.95);
  border-radius: 18px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 20px 25px -20px rgba(0,0,0,0.8);
}

.card.wide {
  width: 100%;
}

.form input,
.form select {
  padding: 7px 9px;
  border-radius: 10px;
  border: none;
  background: #020617;
  color: #fff;
}

button {
  padding: 8px 12px;
  border-radius: 10px;
  border: none;
  background: #22c55e;
  color: #052e16;
  font-weight: 600;
  cursor: pointer;
}

.summary {
  margin-top: 14px;
  border-top: 1px dashed #4b5563;
  padding-top: 10px;
}

.budget-info {
  margin-top: 6px;
  color: #a5b4fc;
}

.alarm {
  margin-top: 10px;
  padding: 10px;
  border-radius: 12px;
  background: rgba(220,38,38,0.18);
  border: 1px solid rgba(248,113,113,0.7);
  color: #fecaca;
}

.error {
  background: rgba(248,113,113,0.2);
  padding: 6px;
  border-radius: 6px;
  color: #fecaca;
}

.hidden { display: none; }

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 6px 8px;
  border-bottom: 1px solid #334155;
}

.amount-income { color: #4ade80; }
.amount-expense { color: #f87171; }

/* Charts grid */
.charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 850px) {
  .charts { grid-template-columns: 1fr; }
  .top-bar { flex-direction: column; }
}