:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-muted: #4b4b4b;
    --color-border: #6b6b6b;
    --color-accent: #0b5fa5;
    --color-accent-contrast: #ffffff;
    --color-error-bg: #5c0a0a;
    --color-error-text: #ffffff;
    --color-success-bg: #eaf6ea;
    --color-success-text: #0f3d0f;
    --focus-ring: 3px solid #0b5fa5;
    --max-width: 46rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #121212;
        --color-text: #f2f2f2;
        --color-muted: #cfcfcf;
        --color-border: #9a9a9a;
        --color-accent: #6cb2f2;
        --color-accent-contrast: #0a1a2a;
        --focus-ring: 3px solid #6cb2f2;
        --color-success-bg: #123312;
        --color-success-text: #d7f3d7;
    }
}

* {
    box-sizing: border-box;
}

html {
    font-size: 100%;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--color-accent);
    color: var(--color-accent-contrast);
    padding: 0.75rem 1rem;
    z-index: 100;
}

.skip-link:focus {
    left: 0.5rem;
    top: 0.5rem;
}

a {
    color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
    outline: var(--focus-ring);
    outline-offset: 2px;
}

.site-header,
.site-footer,
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.25rem;
}

.site-header h1 {
    margin-bottom: 0.25rem;
}

.site-header h1 a {
    text-decoration: none;
    color: inherit;
}

.tagline {
    color: var(--color-muted);
    margin-top: 0;
}

.site-footer {
    color: var(--color-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--color-border);
    margin-top: 2rem;
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 0 0 1.25rem 0;
}

legend {
    font-weight: 600;
    padding: 0 0.4rem;
}

.field {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

input[type="url"],
input[type="file"],
select {
    width: 100%;
    max-width: 100%;
    padding: 0.55rem;
    border: 1px solid var(--color-border);
    border-radius: 0.35rem;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
}

.hint {
    color: var(--color-muted);
    font-size: 0.9rem;
    margin: 0.3rem 0 0 0;
}

.radio-row,
.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.radio-row label,
.checkbox-row label {
    font-weight: 400;
    margin-bottom: 0;
}

.lang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
    gap: 0.4rem 1rem;
}

button {
    background: var(--color-accent);
    color: var(--color-accent-contrast);
    border: none;
    border-radius: 0.4rem;
    padding: 0.75rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    filter: brightness(1.1);
}

.error-banner {
    background: var(--color-error-bg);
    color: var(--color-error-text);
    border-radius: 0.4rem;
    padding: 0.9rem 1rem;
    margin-bottom: 1.25rem;
}

.explainer {
    margin-top: 2.5rem;
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
}

.progress-bar-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0.75rem 0;
}

.progress-bar-label {
    font-weight: 600;
    margin: 0;
}

.progress-bar-row progress {
    flex: 1 1 auto;
    width: 100%;
    height: 0.9rem;
    accent-color: var(--color-accent);
}

#progress-percent-text,
#ocr-progress-percent-text {
    min-width: 3rem;
    text-align: right;
    color: var(--color-muted);
    font-variant-numeric: tabular-nums;
}

.results-list {
    list-style: none;
    padding: 0;
}

.result-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.4rem;
    margin-bottom: 0.6rem;
}

.result-item.result-done {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

.lang-name {
    font-weight: 600;
    min-width: 8rem;
}

.downloads {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.error-text {
    color: var(--color-error-bg);
}

@media (prefers-color-scheme: dark) {
    .error-text {
        color: #ff8a8a;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}