:root {
  --bg: #0e1014;
  --card: #1a1d2e;  
  --line: #2d3147;
  --text: #f0f2f5;
  --muted: #9aa3b2;
  --accent: #3b79ff;
  --accent-hover: #2a66db;
  --danger: #ff4d4f;
  --shadow: rgba(0, 0, 0, 0.25);
}

/* === LIGHT THEME === */
.theme-light {
  --bg: #f1f5f9;
  --text: #1e293b;
  --card: #ffffff;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --muted: #64748b;
  --line: #e2e8f0;
  --shadow: rgba(0, 0, 0, 0.1);
  --panel-bg: #f8fafc;
}

/* === BASE === */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main {
  flex: 1;
  padding: 1rem 1.5rem 2rem;
}
footer {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  padding: 1.5rem 1rem;
  background: transparent;
}

/* === HEADER === */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem 0.5rem;
  flex-wrap: wrap;
}
header h1 {
  font-size: 24px;
  margin: 0;
}
.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn, button {
  padding: 8px 16px;
  background-color: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s ease;
  text-decoration: none;
  box-shadow: 0 4px 10px var(--shadow);
}
.btn:hover, button:hover {
  background: var(--accent-hover);
}
.btn-danger, button.btn-danger {
  background: var(--danger);
}
.btn-danger:hover {
  background: #d9363b;
}

/* === TOOLBAR / FILTER === */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.5rem;
  background: var(--card);
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 2px 8px var(--shadow);
}
.toolbar input,
.toolbar select {
  padding: 8px 12px;
  font-size: 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
}

/* === TABLE === */
#expensesTable {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 1rem;
  box-shadow: 0 2px 6px var(--shadow);
}
#expensesTable th,
#expensesTable td {
  padding: 12px 14px;
  font-size: 14px;
  border-bottom: 1px solid var(--line);
}
#expensesTable th {
  background: var(--card);
  color: var(--muted);
  font-weight: 600;
  text-align: left;
}
#expensesTable tr:hover td {
  background-color: var(--panel-bg, #1e293b);
}
#expensesTable td button {
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 6px;
  margin-right: 4px;
}
/* --- Фікс чорного фону в tbody --- */
#expensesTable tbody tr {
  background-color: var(--card);
  color: var(--text);
  transition: background 0.2s;
}

#expensesTable tbody tr:hover {
  background-color: var(--panel-bg); /* при наведенні */
}
/* === EXPENSE ROW FIX === */
.expense-row {
  background-color: var(--card) !important;
  color: var(--text) !important;
  transition: background-color 0.2s ease;
}

.expense-row:hover {
  background-color: var(--panel-bg, #1e293b) !important;
}

/* --- Для світлої теми --- */
.theme-light #expensesTable tbody tr {
  background-color: var(--card);
  color: var(--text);
}

.theme-light #expensesTable tbody tr:hover {
  background-color: var(--line);
}

/* === SUMMARY BOX === */
.summary {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.2rem 1.5rem;
  border-radius: 10px;
  margin-top: 2rem;
  max-width: 300px;
  box-shadow: 0 2px 8px var(--shadow);
}
.summary h3 {
  margin: 0 0 1rem;
  font-size: 16px;
  color: var(--muted);
}
.summary p {
  margin: 0.4rem 0;
  font-size: 14px;
}
.summary strong {
  color: var(--text);
}

/* === MODAL === */
.details-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.details-modal.show {
  display: flex;
}
.details-box {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 2rem;
  border-radius: 12px;
  max-width: 600px;
  width: 90%;
  box-shadow: 0 6px 20px var(--shadow);
}
.details-box h3 {
  margin-top: 0;
  font-size: 20px;
  margin-bottom: 1rem;
}

/* === INPUTS / FIELDS === */
input, textarea, select {
  background-color: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  width: 100%;
  box-sizing: border-box;
  transition: border 0.2s, background 0.2s;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  outline: none;
  background-color: var(--panel-bg, #1e293b);
}
.details-modal {
  background: rgba(0,0,0,0.3);
}
.details-modal.active {
  display: flex;
}


/* === RESPONSIVE === */
@media (max-width: 768px) {
  .toolbar {
    flex-direction: column;
  }
  .header-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .btn, .toolbar button {
    width: 100%;
    text-align: center;
  }
}