:root {
    --pastel-green: #98C9A3;
    --black: #000000;
    --white: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f5f5f5;
}

.container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    width: 90%;
    max-width: 400px;
    text-align: center;
}

h1 {
    margin-bottom: 2rem;
    color: var(--black);
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

button {
    padding: 0.8rem;
    border: none;
    border-radius: 5px;
    background-color: var(--pastel-green);
    color: var(--black);
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

button:hover {
    opacity: 0.9;
}

.resultado {
    font-size: 1.5em;
    margin-top: 20px;
    color: var(--black);
}

.notas-necessarias {
    margin-top: 1rem;
    padding: 1rem;
    background-color: #f8f8f8;
    border-radius: 5px;
    border-left: 4px solid var(--pastel-green);
}

.status {
    font-weight: bold;
    margin: 1rem 0;
    padding: 0.5rem;
    border-radius: 5px;
    background-color: #f8f8f8;
}

select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
    margin-bottom: 0.5rem;
}

.resultado h3 {
    color: var(--black);
    margin-bottom: 1rem;
}

.resultado p {
    margin-bottom: 0.5rem;
}

.resultado strong {
    color: var(--pastel-green);
}

.input-step {
    margin-bottom: 2rem;
}

.hidden {
    display: none;
}

.previsao-container {
    margin-top: 2rem;
    padding: 1rem;
    background-color: #f8f8f8;
    border-radius: 10px;
}

.nota-necessaria, .nota-ideal {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 5px;
    background-color: white;
}

.nota-necessaria strong {
    color: #ffa500;
    font-size: 1.5rem;
}

.nota-ideal strong {
    color: var(--pastel-green);
    font-size: 1.5rem;
}

.status {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 5px;
    font-weight: bold;
}

.status.aprovado {
    background-color: rgba(152, 201, 163, 0.2);
    color: var(--pastel-green);
}

.status.atencao {
    background-color: rgba(255, 165, 0, 0.2);
    color: #ffa500;
}

h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--black);
}

select, input {
    width: 100%;
    margin-bottom: 0.5rem;
}

.nota-input {
    margin-bottom: 1rem;
    text-align: left;
}

.nota-input label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--black);
    font-size: 0.9rem;
}

.nota-input input {
    width: 100%;
}

.periodo-input {
    background-color: #f8f8f8;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
}

.freq-input {
    margin-top: 1rem;
}

.frequencia-necessaria {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 5px;
    background-color: white;
}

.frequencia-necessaria strong {
    color: #ff9800;
    font-size: 1.5rem;
}

.alerta {
    color: #ff4444;
    font-weight: bold;
    margin-top: 0.5rem;
}

.graficos-container {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.grafico {
    background-color: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    width: 100%;
    height: 400px;
}

.acoes-container {
    margin-top: 2rem;
    text-align: center;
}

.export-btn {
    background-color: #4CAF50;
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.export-btn:hover {
    background-color: #45a049;
}

@media print {
    .export-btn {
        display: none;
    }
}