:root {
    color-scheme: dark;
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        sans-serif;
    color: #e8edf5;
    background: #0b1020;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at top, #172554 0, transparent 45%),
        #0b1020;
}

button,
input {
    font: inherit;
}

.container {
    width: min(920px, calc(100% - 32px));
    margin: 0 auto;
    padding: 80px 0;
}

.hero {
    margin-bottom: 40px;
}

.eyebrow {
    margin: 0 0 12px;
    color: #60a5fa;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2.5rem, 8vw, 5rem);
    line-height: 1;
}

.intro {
    max-width: 620px;
    margin: 24px 0 0;
    color: #aebbd0;
    font-size: 1.15rem;
    line-height: 1.7;
}

.panel {
    padding: 32px;
    border: 1px solid #263553;
    border-radius: 20px;
    background: rgb(15 23 42 / 80%);
    box-shadow: 0 24px 80px rgb(0 0 0 / 25%);
}

.panel h2 {
    margin-top: 0;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 650;
}

.form-row {
    display: flex;
    gap: 12px;
}

input {
    flex: 1;
    min-width: 0;
    padding: 14px 16px;
    border: 1px solid #344766;
    border-radius: 10px;
    color: #f8fafc;
    background: #0b1220;
}

input:focus {
    border-color: #60a5fa;
    outline: 3px solid rgb(96 165 250 / 20%);
}

button {
    padding: 14px 20px;
    border: 0;
    border-radius: 10px;
    color: #07111f;
    background: #60a5fa;
    font-weight: 750;
    cursor: pointer;
}

button:hover {
    background: #93c5fd;
}

.hint {
    margin: 14px 0 0;
    color: #8493aa;
    font-size: 0.9rem;
}

button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.status {
    min-height: 1.5em;
    margin: 16px 0 0;
    color: #93c5fd;
}

.status--error {
    color: #fca5a5;
}

.results {
    margin-top: 32px;
    padding: 32px;
    border: 1px solid #263553;
    border-radius: 20px;
    background: rgb(15 23 42 / 90%);
}

.results-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.results-heading h2 {
    margin: 0;
}

.issue-count {
    padding: 8px 12px;
    border-radius: 999px;
    color: #bfdbfe;
    background: #172554;
    white-space: nowrap;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 32px;
}

.summary-item {
    min-width: 0;
    padding: 16px;
    border: 1px solid #263553;
    border-radius: 12px;
    background: #0b1220;
}

.summary-item dt {
    margin-bottom: 6px;
    color: #8493aa;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.summary-item dd {
    overflow-wrap: anywhere;
    margin: 0;
}

.issues {
    display: grid;
    gap: 12px;
}

.issue {
    padding: 20px;
    border: 1px solid #334155;
    border-left-width: 4px;
    border-radius: 12px;
    background: #0b1220;
}

.issue--error {
    border-left-color: #f87171;
}

.issue--warning {
    border-left-color: #fbbf24;
}

.issue h3 {
    margin: 6px 0 0;
    font-size: 1rem;
}

.issue-meta {
    margin: 0;
    color: #94a3b8;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.issue-selector {
    color: #cbd5e1;
    font-family: monospace;
}

.issue a {
    display: inline-block;
    margin-top: 12px;
    color: #93c5fd;
}

.no-issues {
    padding: 20px;
    border: 1px solid #166534;
    border-radius: 12px;
    color: #bbf7d0;
    background: rgb(20 83 45 / 30%);
}

@media (max-width: 640px) {
    .container {
        padding: 48px 0;
    }

    .form-row {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

    .summary-grid {
        grid-template-columns: 1fr;
    }

    .results-heading {
        flex-direction: column;
    }
}