/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2a40;
  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #2d3748;
  --border-light: #374151;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px rgba(0,212,255,0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Rajdhani', system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  font-size: 15px;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* ===== LOADING OVERLAY ===== */
.loading-overlay {
  position: fixed; inset: 0;
  background: rgba(10,14,26,0.92);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
  transition: opacity 0.3s;
}
.loading-overlay.hidden { opacity: 0; pointer-events: none; }

.loading-spinner { text-align: center; }
.loading-spinner p { margin-top: 16px; color: var(--accent-primary); font-size: 14px; letter-spacing: 1px; }

.spinner-ring {
  width: 50px; height: 50px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== HEADER ===== */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(8px);
}

.header-brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 28px; height: 28px; color: var(--accent-primary); }
.brand-name {
  font-size: 18px; font-weight: 700; letter-spacing: 2px;
  color: var(--text-primary);
}
.brand-accent { color: var(--accent-primary); }

.header-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px; font-weight: 700;
  color: var(--accent-secondary);
  background: rgba(124,58,237,0.1);
  padding: 4px 16px;
  border-radius: 20px;
  border: 1px solid rgba(124,58,237,0.3);
}

.header-actions { display: flex; gap: 10px; align-items: center; }

.btn-export, .btn-new-year {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: none; cursor: pointer;
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px; font-weight: 600;
  transition: all var(--transition);
  letter-spacing: 0.5px;
}
.btn-export {
  background: linear-gradient(135deg, var(--accent-primary), #0099bb);
  color: #0a0e1a;
}
.btn-export:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,212,255,0.3); }

.btn-new-year {
  background: linear-gradient(135deg, var(--accent-secondary), #5b21b6);
  color: white;
}
.btn-new-year:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(124,58,237,0.3); }

/* ===== SUMMARY BAR ===== */
.summary-bar {
  display: flex; gap: 12px;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex-wrap: wrap;
}

.summary-card {
  flex: 1; min-width: 160px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  transition: all var(--transition);
}
.summary-card:hover { border-color: var(--accent-primary); }
.summary-card--computed { min-width: 140px; }
.summary-card--highlight {
  border-color: rgba(0,212,255,0.3);
  background: linear-gradient(135deg, rgba(0,212,255,0.05), var(--bg-card));
  box-shadow: var(--shadow-glow);
}

.summary-label {
  display: block; font-size: 11px; font-weight: 600;
  color: var(--text-secondary); text-transform: uppercase;
  letter-spacing: 0.8px; margin-bottom: 8px;
}

.summary-input-wrap {
  display: flex; align-items: center; gap: 6px;
}
.currency-prefix {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; color: var(--text-secondary);
}
.summary-input {
  flex: 1; background: transparent;
  border: none; outline: none;
  color: var(--accent-success);
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px; font-weight: 700;
  width: 100%;
}
.summary-input::placeholder { color: var(--border); }
.summary-input-desc {
  display: block; margin-top: 6px;
  background: transparent; border: none; outline: none;
  border-top: 1px solid var(--border);
  color: var(--text-secondary); font-family: 'Rajdhani', sans-serif;
  font-size: 12px; width: 100%; padding-top: 6px;
}
.summary-input-desc::placeholder { color: var(--border-light); }

.summary-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 18px; font-weight: 700;
  transition: all 0.3s ease;
}

.value--success { color: var(--accent-success); }
.value--danger { color: var(--accent-danger); }
.value--warning { color: var(--accent-warning); }

/* ===== MONTH TABS ===== */
.month-nav {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  overflow-x: auto;
}

.month-tabs {
  display: flex; gap: 2px;
  min-width: max-content;
}

.month-tab {
  padding: 12px 20px;
  background: transparent; border: none;
  color: var(--text-secondary);
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px; font-weight: 600;
  cursor: pointer; letter-spacing: 0.5px;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.month-tab:hover { color: var(--text-primary); background: rgba(255,255,255,0.03); }
.month-tab.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
  background: rgba(0,212,255,0.05);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  padding: 20px 24px;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .main-content { grid-template-columns: 1fr; }
  .summary-bar { flex-direction: column; }
  .summary-card { min-width: unset; }
}

/* ===== PANELS ===== */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.panel-title { font-size: 16px; font-weight: 700; letter-spacing: 0.5px; }

.total-badge {
  background: rgba(0,212,255,0.1);
  color: var(--accent-primary);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px; font-weight: 600;
}

/* ===== FORM ===== */
.form-conta { padding: 16px 20px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-size: 12px; font-weight: 600;
  color: var(--text-secondary); text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input, .form-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}
.form-input:focus, .form-select:focus { border-color: var(--accent-primary); }
.form-select option { background: var(--bg-card); }
.form-select optgroup { color: var(--accent-primary); background: var(--bg-secondary); }

.radio-group { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-option { display: flex; align-items: center; cursor: pointer; }
.radio-option input[type="radio"] { display: none; }
.radio-badge {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.5px; cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  opacity: 0.5;
}
.radio-option input:checked + .radio-badge { opacity: 1; transform: scale(1.05); }

.badge--fixed { background: rgba(0,212,255,0.1); color: var(--accent-primary); border-color: var(--accent-primary); }
.badge--variable { background: rgba(245,158,11,0.1); color: var(--accent-warning); border-color: var(--accent-warning); }
.badge--installment { background: rgba(124,58,237,0.1); color: var(--accent-secondary); border-color: var(--accent-secondary); }

/* ===== BUTTONS ===== */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #0099bb);
  color: #0a0e1a;
  border: none; border-radius: var(--radius-sm);
  padding: 11px 20px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 15px; font-weight: 700;
  cursor: pointer; letter-spacing: 0.5px;
  transition: all var(--transition);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,212,255,0.3); }
.btn-full { width: 100%; }

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover { border-color: var(--text-secondary); color: var(--text-primary); }

.btn-danger {
  background: linear-gradient(135deg, var(--accent-danger), #b91c1c);
  color: white; border: none;
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px; font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-danger:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(239,68,68,0.3); }

.btn-icon {
  background: transparent; border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 8px;
  cursor: pointer; font-size: 14px;
  transition: all var(--transition); color: var(--text-secondary);
}
.btn-icon:hover { background: var(--bg-secondary); color: var(--text-primary); }
.btn-icon--danger:hover { border-color: var(--accent-danger); color: var(--accent-danger); }

/* ===== TABLE ===== */
.panel--table { display: flex; flex-direction: column; }
.table-wrap { overflow-x: auto; flex: 1; }

.contas-table {
  width: 100%; border-collapse: collapse;
  font-size: 14px;
}
.contas-table th {
  padding: 12px 14px;
  text-align: left;
  font-size: 11px; font-weight: 700;
  color: var(--text-secondary); text-transform: uppercase;
  letter-spacing: 0.8px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.contas-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(45,55,72,0.5);
  vertical-align: middle;
}
.contas-table tbody tr {
  transition: background var(--transition);
}
.contas-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.contas-table tbody tr:last-child td { border-bottom: none; }

.contas-table .table-footer td {
  border-top: 2px solid var(--border);
  border-bottom: none;
  font-weight: 700;
  font-size: 15px;
  padding: 14px;
  background: rgba(0,0,0,0.2);
}

.cell-tipo { font-weight: 600; }
.cell-desc { color: var(--text-secondary); font-size: 13px; }
.cell-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--accent-danger);
}
.cell-venc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; color: var(--text-secondary);
}
.cell-actions { display: flex; gap: 6px; }

.type-badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 20px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.5px;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .type-badge {
    font-size: 10px;
    padding: 2px 6px;
    letter-spacing: 0;
  }
  .contas-table th:nth-child(2),
  .contas-table td:nth-child(2) { display: none; }
  .contas-table th:nth-child(3),
  .contas-table td:nth-child(3) { display: none; }
}
.type-badge--fixed { background: rgba(0,212,255,0.12); color: var(--accent-primary); }
.type-badge--variable { background: rgba(245,158,11,0.12); color: var(--accent-warning); }
.type-badge--installment { background: rgba(124,58,237,0.12); color: var(--accent-secondary); }

/* ===== SKELETON ===== */
.skeleton-container { padding: 16px; }
.skeleton-row {
  height: 44px; border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-card-hover) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  margin-bottom: 10px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center; padding: 48px 20px;
  color: var(--text-secondary);
}
.empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-sub { font-size: 13px; margin-top: 6px; opacity: 0.6; }

/* ===== CHART SECTION ===== */
.chart-section {
  padding: 0 24px 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.chart-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.chart-title { font-size: 17px; font-weight: 700; }

.chart-legend { display: flex; gap: 16px; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot--cyan { background: var(--accent-primary); }
.dot--green { background: var(--accent-success); }
.dot--purple { background: var(--accent-secondary); }

.chart-wrap { position: relative; height: 280px; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%; max-width: 480px;
  margin: 20px;
  animation: slideUp 0.2s ease;
  box-shadow: var(--shadow);
}
.modal-card--sm { max-width: 360px; }
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 16px; font-weight: 700; }
.modal-close {
  background: transparent; border: none;
  color: var(--text-secondary); font-size: 22px;
  cursor: pointer; line-height: 1; padding: 0 4px;
  transition: color var(--transition);
}
.modal-close:hover { color: var(--text-primary); }

.modal-actions {
  display: flex; gap: 10px; justify-content: flex-end;
  padding: 16px 20px; border-top: 1px solid var(--border);
}

.confirm-text { padding: 20px; color: var(--text-secondary); font-size: 15px; }

/* ===== TOAST ===== */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 9998;
}

.toast {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  min-width: 260px; max-width: 380px;
  box-shadow: var(--shadow);
  animation: toastIn 0.25s ease;
  font-size: 14px; font-weight: 500;
}
.toast--success { border-left: 3px solid var(--accent-success); }
.toast--error { border-left: 3px solid var(--accent-danger); }
.toast--warning { border-left: 3px solid var(--accent-warning); }
.toast--info { border-left: 3px solid var(--accent-primary); }

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes toastOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(110%); opacity: 0; }
}
.toast.removing { animation: toastOut 0.25s ease forwards; }

/* ===== CATEGORY GROUP ROWS ===== */
.group-header-row td {
  background: rgba(0,212,255,0.04);
  color: var(--accent-primary);
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
  padding: 6px 14px;
  border-bottom: none;
}

/* ===== ANIMATIONS ===== */
@keyframes countUp {
  from { opacity: 0.5; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.value-updated { animation: countUp 0.3s ease; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .app-header { padding: 10px 14px; }
  .brand-name { font-size: 14px; }
  .summary-bar { padding: 12px 14px; }
  .month-nav { padding: 0 14px; }
  .main-content { padding: 14px; gap: 14px; }
  .chart-section { padding: 0 14px 14px; }
  .header-actions { gap: 6px; }
  .btn-export, .btn-new-year { padding: 7px 12px; font-size: 12px; }
  .contas-table { font-size: 12px; }
  .contas-table th, .contas-table td { padding: 9px 10px; }
  #toast-container { bottom: 14px; right: 14px; left: 14px; }
  .toast { min-width: unset; }
}