* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f7f7f5;
    color: #171717;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.45;
}

a {
    color: #0f5c6d;
}

.shell {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 48px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
}

.brand {
    display: grid;
    gap: 4px;
}

.brand strong {
    font-size: 22px;
}

.brand span {
    color: #62625d;
    font-size: 14px;
}

.nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.nav a {
    border: 1px solid #d8d7d0;
    border-radius: 6px;
    padding: 8px 10px;
    text-decoration: none;
    background: #fff;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.panel {
    background: #fff;
    border: 1px solid #deddd6;
    border-radius: 8px;
    padding: 18px;
}

.panel h1,
.panel h2 {
    margin: 0 0 12px;
    font-size: 20px;
}

.panel p {
    margin: 0 0 12px;
    color: #4f4f49;
}

label {
    display: grid;
    gap: 6px;
    margin: 12px 0;
    color: #33332f;
    font-size: 14px;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid #cfcfc8;
    border-radius: 6px;
    padding: 10px;
    font: inherit;
    background: #fff;
    color: #171717;
}

textarea {
    min-height: 112px;
    resize: vertical;
}

button {
    border: 0;
    border-radius: 6px;
    background: #171717;
    color: #fff;
    padding: 10px 14px;
    font: inherit;
    cursor: pointer;
}

button.secondary {
    background: #ecebe4;
    color: #171717;
}

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

.output {
    grid-column: 1 / -1;
}

pre {
    margin: 0;
    min-height: 220px;
    overflow: auto;
    white-space: pre-wrap;
    background: #171717;
    color: #f5f5ef;
    border-radius: 8px;
    padding: 16px;
    font-size: 13px;
}

.qr-wrap {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.qr-wrap img {
    width: 260px;
    height: 260px;
    background: #fff;
    border: 1px solid #deddd6;
}

.status {
    color: #62625d;
    font-size: 13px;
}

.full {
    grid-column: 1 / -1;
}

@media (max-width: 820px) {
    .grid,
    .qr-wrap {
        grid-template-columns: 1fr;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }
}