/* Encoder/Decoder: layout tabs + dual-pane + image dropzone */

.ed-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0 0 1rem;
    padding: 0;
    border-bottom: 1px solid var(--c-line);
}

.ed-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 0.9rem;
    border: 1px solid transparent;
    border-bottom: 0;
    border-top-left-radius: var(--r-sm);
    border-top-right-radius: var(--r-sm);
    background: transparent;
    color: var(--c-ink-mute);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.ed-tab:hover { color: var(--c-ink-soft); background: var(--c-bg); }
.ed-tab.is-active {
    color: var(--c-blue);
    background: var(--c-bg-card);
    border-color: var(--c-line);
    border-bottom-color: var(--c-bg-card);
    margin-bottom: -1px;
}

.ed-panel {
    background: var(--c-bg-card);
    border: 1px solid var(--c-line);
    border-radius: 0 var(--r-md) var(--r-md) var(--r-md);
    padding: 1rem;
}

.ed-panel-options {
    margin: 0 0 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--c-bg);
    border-radius: var(--r-sm);
}

.ed-option {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--c-ink-soft);
    margin-right: 1rem;
}

.ed-select {
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    font-size: 0.85rem;
    background: var(--c-bg-card);
}

.ed-io {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 1024px) {
    .ed-io { grid-template-columns: 1fr 1fr; }
}

.ed-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.ed-field-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--c-ink-soft);
}

.ed-textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.55;
    resize: vertical;
    background: var(--c-bg-card);
    color: var(--c-ink);
    outline: none;
}

.ed-textarea:focus {
    box-shadow: var(--ring);
    border-color: var(--c-blue);
}

.ed-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.75rem 0 0;
}

/* Image dropzone */
.ed-image-dropzone {
    border: 2px dashed var(--c-line);
    border-radius: var(--r-md);
    padding: 2rem 1rem;
    text-align: center;
    color: var(--c-ink-mute);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    margin-bottom: 1rem;
}

.ed-image-dropzone:hover,
.ed-image-dropzone:focus,
.ed-image-dropzone.is-dragover {
    background: var(--c-bg);
    border-color: var(--c-blue);
    color: var(--c-blue);
}

.ed-image-dropzone p {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
}

.ed-image-dropzone .ed-image-max {
    font-size: 0.75rem;
    color: var(--c-ink-mute);
    margin-top: 0.25rem;
}

.ed-image-preview {
    text-align: center;
    margin: 1rem 0;
}

.ed-image-preview img {
    max-width: 100%;
    max-height: 360px;
    border-radius: var(--r-sm);
    border: 1px solid var(--c-line);
}