:root {
  color-scheme: light;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background: #f7f9f8;
  color: #1e2523;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1rem;
  background: radial-gradient(circle at top right, #daf1e8, #f7f9f8 40%);
}

main {
  max-width: 960px;
  margin: 0 auto;
  background: #ffffffd9;
  border: 1px solid #d5dfdb;
  border-radius: 12px;
  padding: 1rem;
}

h1 {
  margin-top: 0;
}

.status {
  margin: 0.75rem 0;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  background: #eff7f3;
}

.muted {
  color: #4f6360;
}

form {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: 1fr;
  margin-bottom: 1rem;
}

input,
button {
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid #bfcfca;
  font-size: 1rem;
}

button {
  background: #0b3d2e;
  color: white;
  border-color: #0b3d2e;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  border-bottom: 1px solid #d8e1de;
  text-align: left;
  padding: 0.45rem;
  vertical-align: top;
}

@media (max-width: 840px) {
  table,
  thead,
  tbody,
  th,
  td,
  tr {
    display: block;
  }

  thead {
    display: none;
  }

  tr {
    border: 1px solid #d8e1de;
    border-radius: 8px;
    margin-bottom: 0.7rem;
    padding: 0.4rem;
  }

  td {
    border: 0;
    padding: 0.25rem 0.35rem;
  }
}