:root {
    color: #172033;
    background-color: #f5f7fb;
    font-family: Arial, Helvetica, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
}

main {
    width: min(92%, 52rem);
    margin: 3rem auto;
}

h1 {
    margin: 0;
    font-size: clamp(1.8rem, 5vw, 2.6rem);
}

h2 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
}

.page-header {
    margin-bottom: 2rem;
    text-align: center;
}

.student-name {
    margin: 0.75rem 0 0;
    color: #536078;
    font-size: 1.15rem;
}

.panel {
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background-color: white;
    border: 1px solid #d8deea;
    border-radius: 0.75rem;
    box-shadow: 0 0.75rem 2rem rgb(23 32 51 / 8%);
}

.description {
    margin: 0 0 1rem;
    color: #536078;
}

.query-label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.query-input {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.8rem;
    color: #172033;
    background-color: #eef3ff;
    border: 1px solid #8398c2;
    border-radius: 0.35rem;
    font-family: "Courier New", Courier, monospace;
    font-size: 1rem;
    resize: vertical;
}

button {
    padding: 0.65rem 1rem;
    border: 0;
    border-radius: 0.35rem;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.action-button {
    color: white;
    background-color: #315fc4;
}

.action-button:disabled {
    background-color: #8398c2;
    cursor: progress;
}

.status {
    min-height: 1.2rem;
    margin: 0 0 1rem;
    color: #536078;
}

.response {
    overflow-x: auto;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
}

.result-table th,
.result-table td {
    padding: 0.6rem 0.8rem;
    border: 1px solid #d8deea;
    text-align: left;
    white-space: nowrap;
}

.result-table th {
    color: white;
    background-color: #315fc4;
}

.result-table tbody tr:nth-child(even) {
    background-color: #eef3ff;
}

.success-message {
    margin: 0;
    color: #2f7a42;
    font-weight: 600;
}

.error-message {
    margin: 0;
    color: #c43e45;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.empty-message {
    margin: 0;
    color: #536078;
}

@media (max-width: 36rem) {
    main {
        margin: 1rem auto;
    }

    .panel {
        padding: 1.25rem;
    }

    .action-button {
        width: 100%;
    }
}