.jf { display: flex; flex-direction: column; gap: 16px; }

.jf-tabs {
    display: flex; flex-wrap: wrap; gap: 8px;
    padding: 6px; border-radius: 12px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
}
.jf-tab {
    flex: 1 1 auto; min-width: 120px;
    padding: 12px 18px; border-radius: 8px;
    background: transparent; border: 1px solid transparent;
    color: var(--text-muted, #999); font-size: 14px; font-weight: 600;
    cursor: pointer; transition: all .2s;
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-family: inherit;
}
.jf-tab:hover { color: var(--text, #e8e8ea); background: rgba(255,255,255,0.04); }
.jf-tab--active {
    background: #818CF8; color: #fff !important;
    box-shadow: 0 4px 16px rgba(129,140,248,0.25);
}

.jf-panel { display: none; padding: 20px; border-radius: 16px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.06); }
.jf-panel--active { display: block; }

.jf-toolbar {
    display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
    margin-bottom: 16px; padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.jf-spacer { flex: 1 1 auto; }

.jf-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 16px; border-radius: 8px;
    background: rgba(255,255,255,0.06); color: var(--text, #e8e8ea);
    border: 1px solid rgba(255,255,255,0.1);
    font-size: 13px; font-weight: 600; cursor: pointer;
    transition: all .15s; font-family: inherit;
}
.jf-btn:hover:not(:disabled) { background: rgba(255,255,255,0.1); }
.jf-btn:disabled { opacity: .45; cursor: not-allowed; }
.jf-btn--primary {
    background: #818CF8; color: #fff !important;
    border-color: transparent;
}
.jf-btn--primary:hover:not(:disabled) {
    background: #A5B4FC;
    box-shadow: 0 8px 24px rgba(129,140,248,0.35);
}
.jf-btn--swap {
    padding: 9px 12px;
    align-self: flex-end;
}

.jf-io {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 14px;
}

.jf-col { display: flex; flex-direction: column; gap: 8px; }

.jf-label {
    font-size: 12.5px; font-weight: 600;
    color: var(--text-muted, #999);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex; align-items: center; justify-content: space-between;
}
.jf-meta { color: #666; font-weight: 400; text-transform: none; letter-spacing: 0; font-size: 11.5px; }

.jf-textarea {
    min-height: 280px;
    padding: 14px 16px;
    border-radius: 10px;
    background: rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text, #e8e8ea);
    font-family: ui-monospace, 'SF Mono', Menlo, monospace;
    font-size: 13.5px;
    line-height: 1.55;
    resize: vertical;
    font-feature-settings: 'tnum';
    tab-size: 2;
}
.jf-textarea:focus {
    outline: none;
    border-color: #818CF8;
    box-shadow: 0 0 0 3px rgba(129,140,248,0.15);
}
.jf-textarea[readonly] {
    background: rgba(0,0,0,0.15);
    color: var(--text-muted, #999);
}

.jf-status {
    font-size: 13px;
    min-height: 20px;
    color: var(--text-muted, #999);
}
.jf-status.is-error { color: #f87171; }
.jf-status.is-success { color: #4ade80; }

.jf-converter { display: flex; flex-direction: column; gap: 16px; }

.jf-conv-selects {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
    padding: 12px 16px;
    background: rgba(129,140,248,0.06);
    border: 1px solid rgba(129,140,248,0.15);
    border-radius: 10px;
}
.jf-conv-selects .jf-label {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    min-width: 120px;
}
.jf-select {
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text, #e8e8ea);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
}
.jf-select:focus { outline: none; border-color: #818CF8; }

.jf-actions {
    display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
}

.jf-info {
    display: flex; gap: 16px; padding: 20px 22px;
    background: rgba(129,140,248,0.05);
    border: 1px solid rgba(129,140,248,0.2);
    border-radius: 14px;
    margin-top: 16px;
}
.jf-info-icon {
    flex-shrink: 0; width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 10px; background: rgba(129,140,248,0.15);
    color: #A5B4FC; font-size: 18px;
}
.jf-info h4 { font-size: 16px; margin: 0 0 6px; color: #fff; }
.jf-info p { font-size: 13.5px; color: var(--text-muted, #999); line-height: 1.55; margin: 0; }

@media (max-width: 768px) {
    .jf-io { grid-template-columns: 1fr; }
    .jf-tab { min-width: 100%; }
    .jf-textarea { min-height: 200px; font-size: 13px; }
    .jf-toolbar { flex-direction: column; align-items: stretch; }
    .jf-toolbar .jf-btn { justify-content: center; }
    .jf-panel { padding: 14px; }
    .jf-conv-selects { flex-direction: column; align-items: stretch; }
}