.nevv-sdp-attachments-list {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 16px;
}

@media (min-width: 760px) {
    .nevv-sdp-attachments-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.nevv-sdp-attachment-card {
    border: 1px solid var(--nevv-sdp-border-card, #d8dbe2);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    padding: 14px;
    background: var(--nevv-sdp-bg-card, #fff);
}

.nevv-sdp-attachment-card h3 {
    margin-top: 0;
    color: var(--nevv-sdp-h3-color, #111827);
    font-size: var(--nevv-sdp-h3-size, 20px);
}

.nevv-sdp-attachment-card__meta,
.nevv-sdp-attachment-card__links {
    color: var(--nevv-sdp-text-description-color, #52606d);
    font-size: var(--nevv-sdp-text-description-size, 14px);
}

.nevv-sdp-attachment-upload-field {
    display: grid;
    gap: 6px;
    margin: 12px 0;
}

.nevv-sdp-attachment-upload-field input[type="file"] {
    padding: 10px;
    border: 1px solid var(--nevv-sdp-input-border, #cbd5e1);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    background: var(--nevv-sdp-input-bg, #fff);
    color: var(--nevv-sdp-input-color, #111827);
}

.nevv-sdp-attachment-link {
    font-weight: 700;
}

.nevv-sdp-attachment-insert-field,
.nevv-sdp-attachment-form {
    display: grid;
    gap: 10px;
    margin: 12px 0;
}

.nevv-sdp-attachment-insert-field label,
.nevv-sdp-attachment-form label {
    display: grid;
    gap: 6px;
}

.nevv-sdp-attachment-insert-field input[type="text"],
.nevv-sdp-attachment-insert-field textarea,
.nevv-sdp-attachment-insert-field select,
.nevv-sdp-attachment-form input[type="text"],
.nevv-sdp-attachment-form textarea {
    min-height: var(--nevv-sdp-control-height, 42px);
    border: 1px solid var(--nevv-sdp-input-border, #cbd5e1);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    background: var(--nevv-sdp-input-bg, #fff);
    color: var(--nevv-sdp-input-color, #111827);
    padding: 8px 10px;
}

.nevv-sdp-attachment-choice {
    display: flex !important;
    align-items: center;
    gap: 8px;
}

.nevv-sdp-attachment-card__details {
    margin-top: 10px;
}

.nevv-sdp-attachment-card__description {
    color: var(--nevv-sdp-text-description-color, #52606d);
}

/* v0.1.2: insertion tool, preview mode and cleaner editor UI. */
.nevv-sdp-attachment-help {
    margin: 0;
    color: var(--nevv-sdp-text-description-color, #52606d);
    font-size: var(--nevv-sdp-text-description-size, 14px);
}

.nevv-sdp-attachment-editor-toggle {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 4px 0 6px;
}

.nevv-sdp-attachment-editor-toggle .is-selected {
    background: var(--nevv-sdp-btn-other-selected-bg, var(--nevv-sdp-btn-other-bg, #334155));
    color: var(--nevv-sdp-btn-other-selected-color, var(--nevv-sdp-btn-other-color, #ffffff));
}

.nevv-sdp-attachment-preview {
    min-height: 170px;
    max-height: 420px;
    overflow: auto;
    padding: 12px;
    border: 1px solid var(--nevv-sdp-input-border, #cbd5e1);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    background: color-mix(in srgb, var(--nevv-sdp-input-bg, #ffffff) 96%, #000 4%);
    color: var(--nevv-sdp-input-color, #111827);
    line-height: 1.45;
}

.nevv-sdp-attachment-actions {
    margin: 2px 0;
}

/* v0.1.3: WP visual editor integration for attachment-aware content. */
.nevv-sdp-attachment-editor-wrap {
    display: grid;
    gap: 8px;
    margin: 12px 0;
}

.nevv-sdp-attachment-editor-label {
    display: block;
    color: var(--nevv-sdp-text-normal-color, #1f2933);
}

.nevv-sdp-attachment-editor-wrap .wp-editor-wrap {
    width: 100%;
}

.nevv-sdp-attachment-editor-wrap .wp-editor-container {
    border: 1px solid var(--nevv-sdp-input-border, #cbd5e1);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    overflow: hidden;
    background: var(--nevv-sdp-input-bg, #ffffff);
}

.nevv-sdp-attachment-editor-wrap iframe,
.nevv-sdp-attachment-editor-wrap textarea.wp-editor-area {
    min-height: 320px !important;
}

.nevv-sdp-attachment-figure {
    display: inline-block;
    max-width: 100%;
    margin: 10px 0;
}

.nevv-sdp-attachment-figure img,
.nevv-sdp-attachment-figure video {
    max-width: 100%;
    height: auto;
    border-radius: var(--nevv-sdp-radius-global, 12px);
}

.nevv-sdp-attachment-figure figcaption {
    margin-top: 4px;
    color: var(--nevv-sdp-text-description-color, #52606d);
    font-size: var(--nevv-sdp-text-description-size, 14px);
}

/* v0.1.4: compact attachment cards, modals, filters and action buttons. */
.nevv-sdp-attachments-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 12px;
    margin: 14px 0 18px;
}

.nevv-sdp-attachments-toolbar label {
    display: grid;
    gap: 5px;
    min-width: 220px;
    flex: 1 1 220px;
}

.nevv-sdp-attachments-toolbar input,
.nevv-sdp-attachments-toolbar select {
    min-height: var(--nevv-sdp-control-height, 42px);
    border: 1px solid var(--nevv-sdp-input-border, #cbd5e1);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    background: var(--nevv-sdp-input-bg, #fff);
    color: var(--nevv-sdp-input-color, #111827);
    padding: 8px 10px;
}

.nevv-sdp-attachment-card__stats,
.nevv-sdp-attachment-card__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.nevv-sdp-inline-form {
    display: inline-flex;
    margin: 0;
}

.nevv-sdp-attachments-modal[hidden] {
    display: none;
}

.nevv-sdp-attachments-modal {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: grid;
    place-items: center;
    padding: 18px;
}

.nevv-sdp-attachments-modal__overlay {
    position: absolute;
    inset: 0;
    background: var(--nevv-sdp-modal-overlay-bg, rgba(0,0,0,.55));
}

.nevv-sdp-attachments-modal__panel {
    position: relative;
    width: min(760px, 96vw);
    max-height: 90vh;
    overflow: auto;
    background: var(--nevv-sdp-modal-bg, #fff);
    border: 1px solid var(--nevv-sdp-modal-border, #d8dbe2);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    box-shadow: 0 18px 48px rgba(0,0,0,.25);
}

.nevv-sdp-attachments-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--nevv-sdp-modal-border, #d8dbe2);
}

.nevv-sdp-attachments-modal__header h2 {
    margin: 0;
    color: var(--nevv-sdp-modal-title-color, #111827);
}

.nevv-sdp-attachments-modal__close {
    border: 0;
    background: transparent;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: var(--nevv-sdp-modal-text-color, #1f2933);
}

.nevv-sdp-attachments-modal__body {
    padding: 18px;
}

.nevv-sdp-attachment-usage-list {
    display: grid;
    gap: 10px;
}

.nevv-sdp-attachment-usage-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border: 1px solid var(--nevv-sdp-border-card, #d8dbe2);
    border-radius: var(--nevv-sdp-radius-global, 12px);
    padding: 10px;
}

.nevv-sdp-attachment-usage-item span {
    color: var(--nevv-sdp-text-description-color, #52606d);
    font-size: var(--nevv-sdp-text-description-size, 14px);
}

.nevv-sdp-attachment-card.is-focused {
    outline: 3px solid var(--nevv-sdp-btn-edit-bg, #2563eb);
    outline-offset: 4px;
}

.nevv-sdp-attachment-editor-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 12px 0 6px;
}

.nevv-sdp-attachment-insert-field--compact {
    margin: 12px 0 18px;
}

.nevv-sdp-attachment-delete-equation {
    font-size: 2rem;
    line-height: 1.2;
    margin: 16px 0;
}

.nevv-sdp-attachment-delete-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(80px, 1fr));
    gap: 12px;
    margin: 16px 0 20px;
}

.nevv-sdp-attachment-delete-options .nevv-sdp-button {
    justify-content: center;
    width: 100%;
}

@media (max-width: 640px) {
    .nevv-sdp-attachment-delete-options {
        grid-template-columns: 1fr;
    }
}