:root {
  color-scheme: light;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f6f8;
  color: #17202a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0 24px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

p {
  color: #566573;
  margin-top: 6px;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.panel {
  background: #ffffff;
  border: 1px solid #dfe5ec;
  border-radius: 8px;
  padding: 18px;
}

.wide {
  margin-top: 16px;
}

label {
  display: grid;
  gap: 7px;
  margin-bottom: 13px;
  color: #2c3e50;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cbd5df;
  border-radius: 6px;
  padding: 11px 12px;
  background: #fff;
  color: #17202a;
}

textarea {
  resize: vertical;
}

button {
  border: 0;
  border-radius: 6px;
  padding: 11px 14px;
  background: #111827;
  color: white;
  cursor: pointer;
  font-weight: 700;
}

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

.check {
  display: flex;
  align-items: center;
  gap: 10px;
}

.check input {
  width: auto;
}

.drop {
  min-height: 160px;
  place-items: center;
  text-align: center;
  border: 1px dashed #9aa8b6;
  border-radius: 8px;
  padding: 18px;
  background: #f8fafc;
}

.drop input {
  max-width: 280px;
}

.drop span {
  font-size: 18px;
}

.drop strong {
  display: block;
  color: #111827;
  word-break: break-word;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

progress {
  width: 100%;
  height: 18px;
}

#status {
  min-height: 24px;
}

@media (max-width: 760px) {
  .shell {
    padding: 16px;
  }

  .topbar,
  .grid,
  .actions {
    grid-template-columns: 1fr;
    display: grid;
  }

  h1 {
    font-size: 24px;
  }
}