/* ==========================================================================
   TEMA E VARIÁVEIS VISUAIS (Idêntico ao Dark Slate do CustomTkinter)
   ========================================================================== */
:root {
  --bg-dark: #0f172a;
  --card-bg: #1e293b;
  --card-border: #334155;
  --input-bg: #0f172a;
  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --safe-green: #10b981;
  --safe-bg: #064e3b;
  --safe-text: #6ee7b7;
  --critical-red: #ef4444;
  --critical-bg: #450a0a;
  --critical-text: #fca5a5;
  --warning-amber: #f59e0b;
  --warning-bg: #451a03;
  --warning-text: #fde68a;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-family);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px 16px;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
}

/* ==========================================================================
   TELA 1: ENTRADA DE DADOS
   ========================================================================== */
.card-wrapper {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

.header-section {
  margin-bottom: 24px;
}

.header-title {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.header-subtitle {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.expenses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .expenses-grid {
    grid-template-columns: 1fr;
  }
}

.input-cell {
  background-color: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s;
}

.input-cell label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
}

.input-field {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 6px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-field:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.input-field.input-error {
  border-color: var(--critical-red) !important;
}

.reserve-card {
  background-color: var(--input-bg);
  border: 1px solid #3b82f6;
  border-radius: 12px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.reserve-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.reserve-input {
  width: 260px;
  max-width: 100%;
  font-size: 1.05rem;
  font-weight: 700;
  border-color: #3b82f6;
}

@media (max-width: 640px) {
  .reserve-card {
    flex-direction: column;
    align-items: stretch;
  }
  .reserve-input {
    max-width: 100%;
  }
}

/* Banner de Validação */
.validation-banner {
  background-color: var(--critical-bg);
  border: 1px solid var(--critical-red);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--critical-text);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 18px;
  display: none;
}

.validation-banner.show {
  display: block;
}

/* Botão Principal */
.btn-primary {
  width: 100%;
  height: 48px;
  background-color: var(--accent-blue);
  color: #ffffff;
  border: none;
  border-radius: 10px;
  font-size: 1.02rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-primary:hover {
  background-color: var(--accent-blue-hover);
}

.btn-primary:active {
  transform: translateY(1px);
}

/* ==========================================================================
   TELA 2: PAINEL ANALÍTICO E RESULTADOS
   ========================================================================== */
.top-bar {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.btn-back {
  background-color: #334155;
  color: var(--text-primary);
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s;
}

.btn-back:hover {
  background-color: #475569;
}

.btn-new-simulation {
  background-color: var(--accent-blue);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.2s;
}

.btn-new-simulation:hover {
  background-color: var(--accent-blue-hover);
}

.top-title {
  flex: 1;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-left: 6px;
}

.badge-status {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.badge-safe {
  background-color: var(--safe-bg);
  color: var(--safe-text);
  border: 1px solid var(--safe-green);
}

.badge-critical {
  background-color: var(--critical-bg);
  color: var(--critical-text);
  border: 1px solid var(--critical-red);
}

@media (max-width: 800px) {
  .top-bar {
    flex-wrap: wrap;
  }
  .top-title {
    order: 3;
    width: 100%;
    margin-top: 8px;
    margin-left: 0;
  }
}

/* Grade dos Resultados */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

@media (max-width: 960px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

/* Card do Gráfico */
.chart-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.chart-wrapper {
  background-color: var(--input-bg);
  border-radius: 8px;
  padding: 12px;
  flex: 1;
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Painel Direito */
.right-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Bloco Descritivo */
.descriptive-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 18px;
}

.metrics-subgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 520px) {
  .metrics-subgrid {
    grid-template-columns: 1fr;
  }
}

.metric-box {
  background-color: var(--input-bg);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-box-title {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.metric-box-val {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Bloco Prescritivo */
.prescriptive-card {
  background-color: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 12px;
  padding: 18px;
  transition: border-color 0.2s;
}

.prescriptive-card.safe-border {
  border-color: var(--safe-green);
}

.prescriptive-card.critical-border {
  border-color: var(--critical-red);
}

.presc-scenario-title {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.presc-details-box {
  background-color: var(--input-bg);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.presc-metric-primary {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.presc-metric-secondary {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--warning-amber);
}

.presc-explanation {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Alerta de Variabilidade */
.variability-alert-box {
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.45;
  border-width: 1px;
  border-style: solid;
}

.variability-alert-box.alert-safe {
  background-color: var(--safe-bg);
  border-color: var(--safe-green);
  color: #a7f3d0;
}

.variability-alert-box.alert-warning {
  background-color: var(--warning-bg);
  border-color: #d97706;
  color: #fde68a;
}

/* Utilitários */
.screen-hidden {
  display: none !important;
}

.text-green {
  color: var(--safe-green) !important;
}

.text-red {
  color: var(--critical-red) !important;
}

.text-amber {
  color: var(--warning-amber) !important;
}

/* ==========================================================================
   RODAPÉ
   ========================================================================== */
.app-footer {
  text-align: center;
  padding: 28px 0 14px;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}