.d4-pdf-signature-configurator {
    position: relative;
    width: 100%;
    background: #e8eef7;
    border-radius: 8px;
    overflow: hidden;
}

.d4-psc__empty,
.d4-psc__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    padding: 2rem;
}

.d4-psc__empty.hidden,
.d4-psc__loading.hidden,
.d4-psc__editor.hidden {
    display: none !important;
}

.d4-psc__loading-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
    text-align: center;
}

.d4-psc__loading-text {
    margin: 0;
    color: #5b6472;
    font-size: 0.95rem;
}

.d4-psc__empty-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
}

.d4-psc__empty-icon {
    font-size: 3rem;
    color: #2f5bb8;
    line-height: 1;
}

.d4-psc__select-pdf {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.d4-psc__empty-hint {
    margin: 0;
    color: #5b6472;
    font-size: 0.9rem;
}

.d4-psc__format-badges {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.25rem;
}

.d4-psc__badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
}

.d4-psc__badge--pdf {
    color: #c0392b;
    background: #fdecea;
}

.d4-psc__editor {
    display: flex;
    flex-direction: column;
    background: #f4f6fb;
}

.d4-psc__toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: #fff;
    border-bottom: 1px solid #dde3ee;
    flex-wrap: wrap;
}

.d4-psc__toolbar-left.hidden,
.d4-psc__toolbar-right.hidden {
    display: none !important;
}

.d4-psc__toolbar-left:not(.hidden) {
    flex: 1 1 160px;
    min-width: 140px;
}

.d4-psc__toolbar-tools {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.d4-psc__toolbar-right:not(.hidden) {
    margin-left: auto;
}

.d4-psc__body {
    display: flex;
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
}

.d4-psc__thumbs {
    width: 110px;
    flex: 0 0 110px;
    overflow-y: auto;
    background: #eef2f8;
    border-right: 1px solid #dde3ee;
    padding: 0.5rem;
}

.d4-psc__thumb {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0;
    border: 2px solid transparent;
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    overflow: hidden;
}

.d4-psc__thumb.is-active {
    border-color: #405189;
}

.d4-psc__thumb canvas {
    display: block;
    width: 100%;
    height: auto;
}

.d4-psc__thumb-label {
    display: block;
    text-align: center;
    font-size: 0.7rem;
    color: #6c757d;
    padding: 0.15rem 0;
}

.d4-psc__viewport {
    flex: 1 1 auto;
    overflow: auto;
    background: #cfd8e6;
    padding: 1rem;
}

.d4-psc__pages {
    margin: 0 auto;
}

.d4-psc__page {
    position: relative;
    margin: 0 auto 1rem;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
}

.d4-psc__page canvas {
    display: block;
    width: 100%;
    height: auto;
}

.d4-psc__overlay-layer {
    position: absolute;
    inset: 0;
    z-index: 2;
}

.d4-psc__element {
    position: absolute;
    box-sizing: border-box;
    border: 1px dashed rgba(64, 81, 137, 0.55);
    background: rgba(64, 81, 137, 0.06);
    cursor: move;
    user-select: none;
    overflow: hidden;
}

.d4-psc__element.is-selected {
    border: 2px solid #405189;
    background: rgba(64, 81, 137, 0.1);
    z-index: 5;
}

.d4-psc__element.is-readonly {
    cursor: default;
    pointer-events: none;
}

.d4-psc__element--text {
    padding: 2px 4px;
    font-size: 14px;
    line-height: 1.2;
    color: #212529;
    white-space: pre-wrap;
    word-break: break-word;
}

.d4-psc__element--image img,
.d4-psc__element--signature img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

.d4-psc__element--signature_placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: repeating-linear-gradient(
        -45deg,
        rgba(64, 81, 137, 0.08),
        rgba(64, 81, 137, 0.08) 6px,
        rgba(64, 81, 137, 0.16) 6px,
        rgba(64, 81, 137, 0.16) 12px
    );
    color: #405189;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    padding: 0.25rem;
}

.d4-psc__handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #405189;
    border: 1px solid #fff;
    border-radius: 2px;
    z-index: 6;
}

.d4-psc__handle--br {
    right: -5px;
    bottom: -5px;
    cursor: nwse-resize;
}

.d4-psc__element-actions {
    position: absolute;
    top: -28px;
    right: 0;
    display: none;
    gap: 0.25rem;
}

.d4-psc__element.is-selected .d4-psc__element-actions {
    display: flex;
}

.d4-psc__element-actions .btn {
    padding: 0.1rem 0.35rem;
    line-height: 1.2;
}

.d4-psc__statusbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.4rem;
    background: #2b303b;
    color: #fff;
}

.d4-psc__statusbar .btn {
    min-width: 2rem;
}

.d4-psc__sep {
    width: 1px;
    height: 1.1rem;
    background: rgba(255, 255, 255, 0.25);
    margin: 0 0.35rem;
}

.d4-psc__page-label,
.d4-psc__zoom-label {
    font-size: 0.85rem;
    min-width: 3.5rem;
    text-align: center;
}

.d4-psc__toolbar-tools .d4-psc__select-pdf {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.d4-psc__tool-label {
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .d4-psc__tool-label {
        display: none;
    }
}

.d4-psc--readonly .d4-psc__toolbar-tools,
.d4-psc--readonly .d4-psc__save,
.d4-psc--readonly .d4-psc__empty {
    display: none !important;
}

.d4-psc-signature-modal .d4-signature {
    min-height: 220px;
}