body {
    background-color: #e6f2ff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    padding: 30px;
    margin: 0;
}

.container {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    padding: 30px 40px;
    width: 450px;
}

h1 {
    text-align: center;
    color: #004080;
    margin-bottom: 25px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input[type="text"], textarea, input[type="date"], select {
    padding: 10px 14px;
    border: 2px solid #b3c7ff;
    border-radius: 8px;
    font-size: 1rem;
    outline-offset: 2px;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus, textarea:focus, input[type="date"]:focus, select:focus {
    border-color: #4caf50;
}

textarea {
    resize: vertical;
}

button {
    background-color: #4caf50;
    border: none;
    color: white;
    padding: 12px 20px;
    font-size: 1rem;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: fit-content;
    align-self: flex-start;
}

button:hover {
    background-color: #3a9d3a;
}

#lista-tarefas {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    max-height: 400px;
    overflow-y: auto;
}

.tarefa {
    background-color: #f5faff;
    border: 1.8px solid #b3c7ff;
    border-radius: 12px;
    padding: 15px 20px;
    margin-bottom: 15px;
    box-shadow: 1px 1px 5px rgba(0, 64, 128, 0.1);
}

.tarefa strong {
    font-size: 1.1rem;
    color: #003366;
}

.barra-progresso {
    background-color: #d1e7dd;
    border-radius: 8px;
    width: 100%;
    height: 18px;
    margin: 8px 0 12px 0;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.barra-progresso-fill {
    background-color: #4caf50;
    height: 100%;
    border-radius: 8px;
    width: 0%;
    transition: width 0.4s ease;
}

.acoes {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

form.inline {
    display: flex;
    align-items: center;
    gap: 6px;
}

input[type="number"] {
    width: 65px;
    padding: 8px;
    text-align: center;
}

.btn-relatorio {
    display: block;
    text-align: center;
    margin-top: 25px;
    text-decoration: none;
    background-color: #4caf50;
    color: white;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.btn-relatorio:hover {
    background-color: #3a9d3a;
}

.tarefa-concluida {
    opacity: 0.7;
}

.tarefa-concluida .barra-progresso-fill {
    background-color: #2e7d32;
}