/* Lantern RFAi — front-end knowledge base (uses theme CSS variables from medgas-minimal) */

/* Hide sample Q&A after the user runs a search (class set via JS). */
.rfai-kb--searched .rfai-sample-qa {
    display: none;
}

/* ── Sample Q&A (below search; random 5 for now) ──────────────────────────── */
.rfai-sample-qa {
    margin-top: var(--spacing-xl, 2rem);
    margin-bottom: var(--spacing-xl, 2rem);
    padding-top: var(--spacing-lg, 1.5rem);
    border-top: 1px solid var(--color-border-light, #e8eff3);
}

.rfai-sample-qa__heading {
    font-family: var(--font-family-display, Georgia, serif);
    font-size: clamp(1.2rem, 2.5vw, 1.45rem);
    font-weight: 700;
    color: var(--color-primary-dark, #164f5e);
    margin: 0 0 0.4rem;
    line-height: 1.25;
}

.rfai-sample-qa__intro {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-light, #5a6c7d);
    margin: 0 0 var(--spacing-md, 1.25rem);
    line-height: 1.55;
    max-width: 42rem;
}

.rfai-sample-qa__list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.rfai-sample-qa__pair {
    padding: var(--spacing-md, 1.25rem) 0;
    border-bottom: 1px solid var(--color-border-light, #e8eff3);
}

.rfai-sample-qa__pair:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.rfai-sample-qa__topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
}

.rfai-sample-qa__question {
    font-family: var(--font-family-display, Georgia, serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary-dark, #164f5e);
    margin: 0 0 0.5rem;
    line-height: 1.35;
}

.rfai-sample-qa__answer {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text, #2c3e50);
}

.rfai-sample-qa__answer p {
    margin: 0 0 0.65rem;
}

.rfai-sample-qa__answer p:last-child {
    margin-bottom: 0;
}

/* ── Shell ─────────────────────────────────────────────────────────────────── */
.rfai-kb {
    max-width: min(100%, 52rem);
    margin: 0 auto;
    font-family: var(--font-family-body, inherit);
    color: var(--color-text, #2c3e50);
}

/* Search */
.rfai-search-form {
    margin-bottom: var(--spacing-lg, 1.5rem);
}

.rfai-search-form__field {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm, 0.75rem);
    align-items: stretch;
}

.rfai-search-form__input {
    flex: 1;
    min-width: 12rem;
    padding: 0.9rem 1.1rem;
    font-size: var(--font-size-base, 1rem);
    font-family: var(--font-family-body, inherit);
    border: 2px solid var(--color-border, #d5e1e8);
    border-radius: var(--radius-md, 8px);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: var(--color-bg, #fff);
    color: var(--color-text, #2c3e50);
}

.rfai-search-form__input:focus {
    border-color: var(--color-primary, #1e6a7f);
    box-shadow: 0 0 0 3px var(--color-primary-alpha-10, rgba(30, 106, 127, 0.12));
}

.rfai-search-form__submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0 1.35rem;
    min-height: 2.85rem;
    background: linear-gradient(
        135deg,
        var(--color-primary, #1e6a7f) 0%,
        var(--color-primary-dark, #164f5e) 100%
    );
    color: var(--color-text-white, #fff);
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--font-family-body, inherit);
    border: none;
    border-radius: var(--radius-md, 8px);
    cursor: pointer;
    transition: filter 0.2s ease, transform 0.15s ease;
    white-space: nowrap;
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.08));
}

.rfai-search-form__submit:hover {
    filter: brightness(1.06);
}

.rfai-search-form__submit:active {
    transform: translateY(1px);
}

.rfai-search-form__submit:disabled {
    background: var(--color-text-lighter, #8b9daa);
    cursor: not-allowed;
    filter: none;
}

.rfai-search-form__hint {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-lighter, #8b9daa);
    margin: 0.65rem 0 0;
    text-align: center;
    line-height: 1.5;
}

/* Loading */
.rfai-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: var(--spacing-xl, 2rem);
    color: var(--color-text-light, #5a6c7d);
    font-size: 0.95rem;
}

.rfai-loading__spinner {
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-border-light, #e8eff3);
    border-top-color: var(--color-primary, #1e6a7f);
    border-radius: 50%;
    animation: rfai-spin 0.75s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .rfai-loading__spinner {
        animation: none;
        border-top-color: var(--color-border-medium, #b0c4d0);
    }
}

@keyframes rfai-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Results */
.rfai-results {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md, 1.25rem);
}

.rfai-results__count {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-light, #5a6c7d);
    margin: 0 0 var(--spacing-sm, 0.75rem);
}

/* Answer cards */
.rfai-answer-card {
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border-light, #e8eff3);
    border-radius: var(--radius-lg, 12px);
    padding: clamp(1.25rem, 3vw, 1.75rem);
    box-shadow: var(--shadow-sm, 0 2px 8px var(--color-black-alpha-06, rgba(0, 0, 0, 0.06)));
}

.rfai-answer-card__topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.65rem;
}

.rfai-tag {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    background: var(--color-primary-alpha-10, rgba(30, 106, 127, 0.1));
    color: var(--color-primary-dark, #164f5e);
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: 0.02em;
}

.rfai-answer-card__question {
    font-family: var(--font-family-display, Georgia, serif);
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 700;
    color: var(--color-primary-dark, #164f5e);
    margin: 0 0 0.65rem;
    line-height: 1.35;
}

.rfai-answer-card__scenario {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-light, #5a6c7d);
    background: var(--color-bg-alt, #f5f8fa);
    border-left: 3px solid var(--color-accent, #f4c542);
    padding: 0.55rem 0.85rem;
    margin-bottom: 1rem;
    border-radius: 0 var(--radius-sm, 4px) var(--radius-sm, 4px) 0;
}

.rfai-answer-card__scenario-label {
    font-weight: 700;
    color: var(--color-text, #2c3e50);
    margin-right: 0.25rem;
}

.rfai-answer-card__answer {
    font-size: 0.975rem;
    line-height: 1.75;
    color: var(--color-text, #2c3e50);
    margin-bottom: 1.15rem;
}

.rfai-answer-card__answer p:last-child {
    margin-bottom: 0;
}

/* Inline citations in answer body */
.rfai-inline-cite {
    display: inline;
    padding: 0.1rem 0.35rem;
    background: var(--color-accent-alpha-10, rgba(244, 197, 66, 0.12));
    color: var(--color-primary-dark, #164f5e);
    font-size: 0.8em;
    font-family: var(--font-family-body, inherit);
    font-weight: 700;
    border-bottom: 2px solid var(--color-accent-dark, #d4a525);
    white-space: nowrap;
    margin: 0 0.1rem;
}

/* Citations list */
.rfai-answer-card__citations {
    margin-bottom: 1.15rem;
}

.rfai-answer-card__citations-label {
    font-size: var(--font-size-xs, 0.75rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-light, #5a6c7d);
    display: block;
    margin-bottom: 0.4rem;
}

.rfai-citation-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.rfai-citation {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.rfai-citation__ref {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    background: var(--color-bg-alt, #f5f8fa);
    color: var(--color-primary-dark, #164f5e);
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 600;
    font-family: var(--font-family-body, inherit);
    border: 1px solid var(--color-border, #d5e1e8);
    border-radius: var(--radius-sm, 4px);
}

.rfai-citation__notes {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-light, #5a6c7d);
}

.rfai-answer-card__footer {
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-light, #e8eff3);
}

.rfai-answer-card__meta {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-lighter, #8b9daa);
    margin-bottom: 0.45rem;
}

.rfai-answer-card__verified::after {
    content: ' ·';
    margin-right: 0.25rem;
}

.rfai-answer-card__disclaimer {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-lighter, #8b9daa);
    font-style: italic;
}

.rfai-answer-card__related {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-light, #e8eff3);
}

.rfai-answer-card__related-label {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 700;
    color: var(--color-text-light, #5a6c7d);
    display: block;
    margin-bottom: 0.4rem;
}

.rfai-related-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.rfai-related-link {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-primary, #1e6a7f);
    text-decoration: none;
    font-weight: 600;
}

.rfai-related-link:hover {
    text-decoration: underline;
    color: var(--color-primary-dark, #164f5e);
}

/* No results */
.rfai-no-results {
    text-align: center;
    padding: var(--spacing-xl, 2.5rem) var(--spacing-md, 1.5rem);
    background: var(--color-bg-alt, #f5f8fa);
    border: 2px dashed var(--color-border, #d5e1e8);
    border-radius: var(--radius-lg, 12px);
}

.rfai-no-results__icon {
    font-size: 2.25rem;
    margin-bottom: 0.85rem;
    opacity: 0.85;
}

.rfai-no-results__heading {
    font-family: var(--font-family-display, Georgia, serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-dark, #164f5e);
    margin: 0 0 0.5rem;
}

.rfai-no-results__body {
    color: var(--color-text-light, #5a6c7d);
    font-size: 0.95rem;
    margin: 0 0 1.35rem;
    line-height: 1.6;
}

/* Access denied */
.rfai-access-denied {
    text-align: center;
    padding: var(--spacing-xl, 2.5rem) var(--spacing-md, 1.5rem);
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border-light, #e8eff3);
    border-radius: var(--radius-lg, 12px);
    max-width: 28rem;
    margin: var(--spacing-lg, 1.5rem) auto;
    box-shadow: var(--shadow-sm, 0 2px 8px var(--color-black-alpha-06, rgba(0, 0, 0, 0.06)));
}

.rfai-access-denied__icon {
    font-size: 1.75rem;
    margin-bottom: 0.65rem;
}

.rfai-access-denied h2 {
    font-family: var(--font-family-display, Georgia, serif);
    color: var(--color-primary-dark, #164f5e);
}

/* Buttons */
.rfai-btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    background: linear-gradient(
        135deg,
        var(--color-primary, #1e6a7f) 0%,
        var(--color-primary-dark, #164f5e) 100%
    );
    color: var(--color-text-white, #fff);
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--font-family-body, inherit);
    border: none;
    border-radius: var(--radius-md, 8px);
    cursor: pointer;
    text-decoration: none;
    transition: filter 0.2s ease;
}

.rfai-btn:hover {
    filter: brightness(1.05);
    color: var(--color-text-white, #fff);
}

.rfai-btn--primary {
    background: linear-gradient(
        135deg,
        var(--color-primary, #1e6a7f) 0%,
        var(--color-primary-dark, #164f5e) 100%
    );
}

/* Flag form */
.rfai-flag-status {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md, 8px);
    font-size: 0.9rem;
}

.rfai-flag-status--success {
    background: rgba(40, 167, 69, 0.08);
    color: var(--color-success, #28a745);
    border: 1px solid rgba(40, 167, 69, 0.25);
}

.rfai-flag-status--error {
    background: rgba(220, 53, 69, 0.06);
    color: var(--color-danger, #dc3545);
    border: 1px solid rgba(220, 53, 69, 0.2);
}