.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}
/* ---------- FluentRegex playground ---------- */
:root {
    --bg: #0f1117;
    --panel: #171a23;
    --border: #2a2f3d;
    --text: #e6e8ee;
    --muted: #8b93a7;
    --accent: #7c9cff;
    --ok: #3fb950;
    --bad: #f85149;
    --mark: rgba(124, 156, 255, 0.28);
    --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

html, body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
code, pre, .code-input, .preview { font-family: var(--mono); font-size: 0.9rem; }
pre { white-space: pre-wrap; word-break: break-word; margin: 0; }

.topbar { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; font-size: 1.15rem; }
.brand span { color: var(--accent); font-weight: 500; }
.topbar-actions { display: flex; gap: 0.5rem; }

.btn { background: var(--accent); color: #0b0d12; border: 0; border-radius: 6px; padding: 0.4rem 0.8rem; cursor: pointer; text-decoration: none; font: inherit; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }

.workspace { display: grid; grid-template-columns: minmax(320px, 1fr) minmax(360px, 1.3fr); gap: 1rem; padding: 1rem 1.25rem; }
@media (max-width: 900px) { .workspace { grid-template-columns: 1fr; } }

.inputs, .panels { display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; }
.field-label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; margin-top: 0.5rem; }
.code-input { width: 100%; box-sizing: border-box; background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 0.6rem; resize: vertical; }
.code-input:focus { outline: 1px solid var(--accent); }
.code-input.invalid { outline: 1px solid var(--bad); }

.options { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; }
.option { font-size: 0.85rem; color: var(--muted); display: flex; gap: 0.3rem; align-items: center; }

.preview { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 0.6rem; white-space: pre-wrap; word-break: break-word; min-height: 3rem; }
.preview .frx-match { background: var(--mark); color: var(--text); border-radius: 3px; outline: 1px solid var(--accent); }

.tabs { display: flex; flex-wrap: wrap; gap: 0.25rem; border-bottom: 1px solid var(--border); }
.tab { background: transparent; color: var(--muted); border: 0; border-bottom: 2px solid transparent; padding: 0.5rem 0.75rem; cursor: pointer; font: inherit; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 0.9rem; overflow: auto; min-height: 320px; }
.panel h3 { margin: 0 0 0.5rem; font-size: 0.95rem; }
.hint, .muted { color: var(--muted); font-size: 0.85rem; }
.error { color: var(--bad); font-family: var(--mono); font-size: 0.85rem; white-space: pre-wrap; }
.verdict { font-weight: 600; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }

.match-card { border: 1px solid var(--border); border-radius: 6px; padding: 0.5rem 0.6rem; margin-bottom: 0.5rem; }
.group-row { margin-left: 1rem; font-size: 0.85rem; }
.group-name { color: var(--accent); }
.issue { border-left: 3px solid var(--bad); padding: 0.3rem 0.6rem; margin-bottom: 0.6rem; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.samples { padding-left: 1.1rem; margin: 0; }
.diagram { background: #fff; border-radius: 6px; padding: 0.5rem; overflow-x: auto; }
details { margin-top: 0.75rem; }

.preview .frx-group { border-bottom: 2px solid #f0b429; }