:root {
    --bg: #161d25;
    --panel: #25304b;
    --text: #e6edf3;
    --muted: #9aa7b2;
    --border: rgba(255, 255, 255, 0.08);
    --radius: 14px;
    --pad: 16px;
    --control-bg: rgba(0, 0, 0, 0.45);
    --control-bg-hover: rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app-header {
    padding: 24px 16px 8px;
    max-width: 1200px;
    margin: 0 auto;
}

.muted {
    color: var(--muted);
}

.app-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
    display: grid;
    gap: 16px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--pad);
}

.output-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.output-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
}

.code {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    white-space: pre-wrap;
    overflow: auto;
    min-height: 140px;
}

.code--tall {
    min-height: 200px;
}

.controls-form {
    display: grid;
    gap: 12px;
    justify-content: start;
    grid-template-columns: repeat(4, 1fr);
}

.field {
    display: grid;
    gap: 6px;
}

.field__label {
    font-size: 14px;
}

.field__input {
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: var(--control-bg);
    color: var(--text);

    /* Helps consistency across browsers */
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

select.field__input {
    padding: 10px 40px 10px 12px;
    /* extra right space for arrow */
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background-color: rgba(0, 0, 0, 0.55);
    color: #e6edf3;

    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;

    /* Custom arrow using SVG */
    background-image: url("data:image/svg+xml;utf8,<svg fill='%23e6edf3' height='20' viewBox='0 0 24 24' width='20' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.field__input:hover {
    background: var(--control-bg-hover);
}

.field__input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.28);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

.toggle-row {
    margin-top: 10px;
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: start;
    gap: 10px;
}

.toggle {
    display: flex;
    gap: 10px;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.btn {
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    cursor: pointer;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.12);
}

.btn--ghost {
    background: transparent;
}

.demo-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.hint {
    margin-top: 12px;
    font-size: 14px;
}

.pretty-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 6px;
}

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

.pretty-table th,
.pretty-table td {
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 8px 10px;
    text-align: left;
    vertical-align: top;
}

.pretty-table th {
    background: rgba(255, 255, 255, 0.06);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}

.output-card.pulse {
    animation: pulse 280ms ease-in-out;
    border-color: rgba(255, 255, 255, 0.28);
}