:root {
  --bg-color: #f5f7fb;
  --bg-elevated: #ffffff;
  --bg-elevated-soft: #f0f3ff;
  --text-color: #171823;
  --text-muted: #6b7280;
  --primary: #4f46e5;
  --primary-soft: rgba(79, 70, 229, 0.08);
  --primary-strong: #3730a3;
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.08);
  --success: #16a34a;
  --border-color: #e5e7eb;
  --card-radius: 16px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);
  --transition-fast: 150ms ease-out;
  --transition-slow: 220ms ease;
}

.dark {
  --bg-color: #020617;
  --bg-elevated: #020617;
  --bg-elevated-soft: #020617;
  --text-color: #e5e7eb;
  --text-muted: #9ca3af;
  --primary: #6366f1;
  --primary-soft: rgba(99, 102, 241, 0.2);
  --primary-strong: #4f46e5;
  --danger: #f97373;
  --danger-soft: rgba(249, 115, 115, 0.18);
  --success: #4ade80;
  --border-color: #1f2937;
  --shadow-soft: 0 20px 60px rgba(15, 23, 42, 0.75);
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #ecfeff 0, #eff6ff 30%, #f5f5f5 60%, #e5e7eb 100%);
  color: var(--text-color);
}

body {
  min-height: 100vh;
}

.dark body {
  background: radial-gradient(circle at top left, #0f172a 0, #020617 40%, #020617 90%);
}

.app {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 16px 40px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-circle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.5);
}

.logo-text h1 {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.logo-text p {
  margin: 4px 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 0.88rem;
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
  font-weight: 500;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
  box-shadow: none;
  transform: none;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
}

.btn.primary-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #ffffff;
  box-shadow: 0 12px 30px rgba(79, 70, 229, 0.5);
}

.btn.primary-btn:hover {
  box-shadow: 0 16px 40px rgba(79, 70, 229, 0.7);
}

.btn.secondary-btn {
  background: var(--bg-elevated-soft);
  color: var(--text-color);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.btn.secondary-btn:hover {
  background: rgba(148, 163, 184, 0.1);
}

.btn.danger-btn {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.5);
}

.btn.danger-btn:hover {
  background: rgba(248, 113, 113, 0.16);
}

.btn.icon-btn {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg-elevated-soft);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.btn.icon-btn .icon-sun {
  display: none;
}

.dark .btn.icon-btn .icon-moon {
  display: none;
}

.dark .btn.icon-btn .icon-sun {
  display: inline;
}

.app-main {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.card {
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--card-radius);
  padding: 16px 18px 18px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(148, 163, 184, 0.25);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: cardAppear 320ms ease-out;
}

.dark .card {
  background: rgba(15, 23, 42, 0.96);
  border-color: rgba(51, 65, 85, 0.9);
}

.card h2 {
  margin: 0 0 10px;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.card-income,
.card-expense {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.income-display {
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--bg-elevated-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

.income-display strong {
  font-size: 1rem;
}

.form-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.form-grid {
  display: grid;
  gap: 10px 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.84rem;
}

.field-group label {
  color: var(--text-muted);
}

.field-group.full-width {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

input,
select {
  border-radius: 999px;
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  font-size: 0.9rem;
  background: var(--bg-elevated);
  color: var(--text-color);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast), color var(--transition-fast);
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px rgba(79, 70, 229, 0.4);
}

.input-with-prefix {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-elevated-soft);
}

.input-with-prefix span {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.input-with-prefix input {
  border: none;
  padding-left: 2px;
  background: transparent;
  flex: 1;
  box-shadow: none;
}

.input-with-prefix:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px rgba(79, 70, 229, 0.35);
}

.layout-two-columns {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 16px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.summary-item {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.06), transparent 55%);
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.84rem;
}

.summary-item span {
  color: var(--text-muted);
}

.summary-item strong {
  font-size: 0.98rem;
}

.warning-message {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-radius: 12px;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.86rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.warning-message::before {
  content: "⚠️";
}

.card-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chart-container {
  position: relative;
  height: 220px;
}

.chart-colors {
  margin-top: 4px;
  margin-bottom: 4px;
}

.chart-colors p {
  margin: 0 0 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.chart-colors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.color-option {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--bg-elevated-soft);
  border: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 0.78rem;
}

.color-option input[type="color"] {
  width: 24px;
  height: 24px;
  padding: 0;
  border-radius: 999px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.card-list {
  margin-top: 4px;
}

.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.list-filters {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.list-filters select {
  font-size: 0.8rem;
  padding: 6px 10px;
}

.table-wrapper {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.26);
  overflow: hidden;
  background: var(--bg-elevated-soft);
}

.expenses-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.expenses-table thead {
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.2), transparent 70%);
}

.expenses-table th,
.expenses-table td {
  padding: 8px 10px;
  text-align: left;
}

.expenses-table th {
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
}

.expenses-table tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.015);
}

.dark .expenses-table tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.7);
}

.expenses-table tbody tr {
  transition: background-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast), opacity var(--transition-fast);
}

.expenses-table tbody tr:hover {
  background: rgba(79, 70, 229, 0.04);
}

.expense-name {
  font-weight: 500;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 0.72rem;
  font-weight: 500;
}

.tag-category {
  background: rgba(59, 130, 246, 0.12);
  color: #1d4ed8;
}

.tag-type-fixo {
  background: rgba(22, 163, 74, 0.14);
  color: var(--success);
}

.tag-type-variavel {
  background: rgba(234, 179, 8, 0.16);
  color: #ca8a04;
}

.cell-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-icon-small {
  border-radius: 999px;
  border: none;
  padding: 4px 8px;
  font-size: 0.74rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: transparent;
  color: var(--text-muted);
  transition: background-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.btn-icon-small:hover {
  transform: translateY(-0.5px);
}

.btn-edit {
  background: rgba(34, 197, 94, 0.08);
  color: #16a34a;
}

.btn-delete {
  background: rgba(239, 68, 68, 0.08);
  color: var(--danger);
}

.empty-state {
  margin: 0;
  padding: 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
}

.app-footer {
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* Animations */
@keyframes cardAppear {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rowFadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rowFadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-4px);
  }
}

.row-fade-in {
  animation: rowFadeIn 220ms ease-out;
}

.row-fade-out {
  animation: rowFadeOut 220ms ease-in forwards;
}

/* Responsive */
@media (max-width: 880px) {
  .app {
    padding-top: 20px;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    align-self: stretch;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .layout-two-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .field-group.full-width {
    flex-direction: column;
    align-items: stretch;
  }

  .form-inline {
    flex-direction: column;
    align-items: stretch;
  }

  .chart-container {
    height: 200px;
  }
}

@media (max-width: 560px) {
  .app {
    padding-inline: 10px;
  }

  .card {
    padding-inline: 14px;
  }

  .logo-text h1 {
    font-size: 1.2rem;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .expenses-table th:nth-child(3),
  .expenses-table td:nth-child(3) {
    display: none;
  }
}