/*
 * DataForge Playground — custom style overrides on Pico.css.
 *
 * Minimal additions for: severity badges, diff colors, progress bar
 * polish, cold-start banner, and dark-mode compatibility.
 */

/* ---------------------------------------------------------------------------
   Layout & typography
   --------------------------------------------------------------------------- */

:root {
    --df-safe: #22c55e;
    --df-review: #f59e0b;
    --df-unsafe: #ef4444;
    --df-diff-add-bg: rgba(34, 197, 94, 0.12);
    --df-diff-del-bg: rgba(239, 68, 68, 0.12);
    --df-diff-add-text: #16a34a;
    --df-diff-del-text: #dc2626;
    --df-banner-bg: #1e293b;
    --df-banner-text: #e2e8f0;
}

@media (prefers-color-scheme: dark) {
    :root {
        --df-diff-add-bg: rgba(34, 197, 94, 0.18);
        --df-diff-del-bg: rgba(239, 68, 68, 0.18);
        --df-diff-add-text: #4ade80;
        --df-diff-del-text: #f87171;
        --df-banner-bg: #0f172a;
        --df-banner-text: #cbd5e1;
    }
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

footer {
    text-align: center;
    padding: 1rem 0;
    opacity: 0.7;
}

/* ---------------------------------------------------------------------------
   Cold-start banner
   --------------------------------------------------------------------------- */

.banner {
    background: var(--df-banner-bg);
    color: var(--df-banner-text);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    text-align: center;
    transition: opacity 0.3s ease, max-height 0.3s ease;
    margin-bottom: 1rem;
}

.banner--hidden {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    margin: 0;
    pointer-events: none;
}

.banner--visible {
    opacity: 1;
    max-height: 6rem;
}

.banner progress {
    width: 100%;
    max-width: 20rem;
    margin-top: 0.5rem;
}

/* ---------------------------------------------------------------------------
   Severity badges
   --------------------------------------------------------------------------- */

.badge {
    display: inline-block;
    padding: 0.15em 0.55em;
    border-radius: 0.35em;
    font-size: 0.8em;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.badge--safe {
    background: var(--df-safe);
    color: #fff;
}

.badge--review {
    background: var(--df-review);
    color: #fff;
}

.badge--unsafe {
    background: var(--df-unsafe);
    color: #fff;
}

/* ---------------------------------------------------------------------------
   Diff view
   --------------------------------------------------------------------------- */

.diff-view {
    font-family: "Fira Code", "Cascadia Code", "JetBrains Mono", monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.diff-header {
    color: var(--pico-color);
    font-weight: 600;
    display: block;
}

.addition {
    background: var(--df-diff-add-bg);
    color: var(--df-diff-add-text);
    display: block;
}

.deletion {
    background: var(--df-diff-del-bg);
    color: var(--df-diff-del-text);
    display: block;
}

.diff-reason {
    opacity: 0.65;
    font-style: italic;
    display: block;
}

/* ---------------------------------------------------------------------------
   Results section
   --------------------------------------------------------------------------- */

.results-hidden {
    display: none;
}

.meta-summary {
    padding: 0.5rem 0;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.no-issues {
    padding: 1rem;
    text-align: center;
    opacity: 0.7;
}

.table-wrapper {
    overflow-x: auto;
}

.row-indices {
    font-family: "Fira Code", monospace;
    font-size: 0.85em;
}

/* ---------------------------------------------------------------------------
   Tabs
   --------------------------------------------------------------------------- */

[role="tablist"] {
    display: flex;
    gap: 0;
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    border-bottom: 2px solid var(--pico-muted-border-color);
}

[role="tablist"] li {
    margin: 0;
    padding: 0;
}

[role="tab"] {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--pico-muted-color);
    transition: color 0.2s, border-color 0.2s;
    margin-bottom: -2px;
}

[role="tab"]:hover {
    color: var(--pico-color);
}

[role="tab"].tab-active {
    color: var(--pico-primary);
    border-bottom-color: var(--pico-primary);
}

.tab-panel--hidden {
    display: none;
}

/* ---------------------------------------------------------------------------
   Loading states
   --------------------------------------------------------------------------- */

.loading-hidden {
    display: none;
}

.loading-visible {
    display: block;
    text-align: center;
    padding: 1rem;
}

.loading-visible progress {
    width: 100%;
    max-width: 20rem;
    margin: 0 auto;
}

/* ---------------------------------------------------------------------------
   Error card
   --------------------------------------------------------------------------- */

.error-card {
    border-left: 4px solid var(--df-unsafe);
    padding: 0.75rem 1rem;
}

/* ---------------------------------------------------------------------------
   Revert notice
   --------------------------------------------------------------------------- */

.revert-notice {
    border-left: 4px solid var(--df-review);
}

.journal-empty {
    color: var(--pico-muted-color);
    font-style: italic;
}

/* ---------------------------------------------------------------------------
   Privacy notice
   --------------------------------------------------------------------------- */

.privacy-notice {
    display: block;
    text-align: center;
    padding: 0.75rem 0;
    opacity: 0.6;
}

/* ---------------------------------------------------------------------------
   Toggle label
   --------------------------------------------------------------------------- */

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.toggle-label input[disabled] {
    cursor: not-allowed;
}

/* ---------------------------------------------------------------------------
   Upload section
   --------------------------------------------------------------------------- */

#upload-section {
    margin-bottom: 1.5rem;
}

/* ---------------------------------------------------------------------------
   Run locally details
   --------------------------------------------------------------------------- */

#run-locally {
    margin-top: 2rem;
}