/* 1. Variáveis Globais e Reset */

:root {
  --cor-primaria: #35424a;
  --cor-sucesso: #45a049;
  --cor-fundo: #f4f4f4;
  --cor-fundo-card: #ffffff;
  --cor-texto: #333;
  --cor-texto-claro: #ffffff;
  --cor-borda: #dddddd;
  --fonte-principal: Arial, sans-serif;
}

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

/* 2. Estilos da Estrutura Principal (Layout) */

body {
  font-family: var(--fonte-principal);
  background-color: var(--cor-fundo);
  color: var(--cor-texto);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-color: var(--cor-primaria);
  color: var(--cor-texto-claro);
  font-weight: bold;
  padding: 1rem 0;
  text-align: center;
}

main {
  flex-grow: 1;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

section {
  flex: 1;
}

footer {
  background-color: var(--cor-primaria);
  color: var(--cor-texto-claro);
  text-align: center;
  padding: 1rem 0;
  width: 100%;
}

/* 3. Estilos dos Componentes */

/* Cards de Seção */
.form-section,
.result-section {
  background-color: var(--cor-fundo-card);
  border: 1px solid var(--cor-borda);
  border-radius: 8px;
  padding: 20px;
}

/* Campos do Formulário */
.input-container {
  margin-bottom: 15px;
}

.input-container label {
  display: block;
  font-weight: bold;
  margin-bottom: 5px;
}

.input-container input[type="number"],
.input-container select {
  border: 1px solid var(--cor-borda);
  border-radius: 4px;
  padding: 10px;
  width: 100%;
}

/* Botões */
.button-container {
  display: flex;
  justify-content: space-between;
  gap: 15px;
}

.button-container button {
  background-color: var(--cor-primaria);
  border: none;
  border-radius: 4px;
  color: var(--cor-texto-claro);
  cursor: pointer;
  padding: 10px 15px;
  flex-grow: 1;
  transition: background-color 0.3s ease;
}

.button-container button:hover {
  background-color: var(--cor-sucesso);
}

.button-container button[type="reset"] {
  background-color: #6c757d;
}
.button-container button[type="reset"]:hover {
  background-color: #5a6268;
}

/* Seção de Resultados */
.result-container {
  background-color: #f9f9f9;
  border: 1px solid var(--cor-borda);
  border-radius: 8px;
  padding: 15px;
}

.result-container h2 {
  margin-bottom: 10px;
}

/* Rodapé */
footer a {
  color: var(--cor-texto-claro);
  text-decoration: none;
  font-weight: bold;
}

footer a:hover {
  text-decoration: underline;
}

/* 4. Estilos do Gráfico */

.chart-container {
  margin-top: 20px;
  padding: 15px;
  background-color: var(--cor-fundo-card);
  border-radius: 8px;
  border: 1px solid var(--cor-borda);
  position: relative;
  width: 100%;
  height: 300px;
}

.chart-container h3 {
  text-align: center;
  margin-bottom: 15px;
  font-size: 1rem;
}

canvas {
  width: 100% !important;
  height: 100% !important;
}

/* 5. Design Responsivo (Media Queries) */

@media (max-width: 1200px) {
  main {
    flex-direction: column;
  }
}

@media (max-width: 569px) {
  .result-container {
    overflow-x: auto;
  }

  .chart-container {
    min-width: 500px;
  }
}