#pdf-wm-ui {
    --wm-accent: #2563eb;
    --wm-accent-hover: #1d4ed8;
    --wm-success: #059669;
    --wm-border: #e5e7eb;
    --wm-muted: #6b7280;
    --wm-bg: #f8fafc;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    max-width: 1100px;
    margin: 0 auto;
}

#pdf-wm-ui .wm-section {
    padding: 1.25rem 0;
}

#pdf-wm-ui .wm-lead {
    color: var(--wm-muted);
    margin: 0 0 1rem;
}

#wm-pdf-input,
#wm-image-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}

#pdf-wm-ui .wm-btn-secondary {
    background: #fff;
    color: var(--wm-accent);
    border: 1px solid var(--wm-accent);
}

.wm-preview-stage {
    position: relative;
    min-height: 420px;
    background: #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.wm-preview-stage.has-pdf {
    min-height: 0;
    background: #fff;
}

.wm-preview-stage.has-pdf .wm-pdf-drop,
.wm-preview-stage.is-loading .wm-pdf-drop {
    display: none !important;
    pointer-events: none;
    visibility: hidden;
}

.wm-preview-stage.has-pdf.is-ready #wm-preview-canvas {
    display: block !important;
    position: relative;
    z-index: 1;
    width: 100%;
    height: auto;
}

.wm-preview-stage.has-pdf .wm-preview-overlay {
    z-index: 2;
}

/* Спиннер только после выбора PDF, никогда поверх кнопки «Выбрать PDF» */
.wm-preview-loading {
    display: none !important;
    position: absolute;
    inset: 0;
    z-index: 3;
    align-items: center;
    justify-content: center;
    background: #fff;
    font-size: 0.9rem;
    color: var(--wm-muted);
    pointer-events: none;
}

.wm-preview-stage.is-loading .wm-preview-loading {
    display: flex !important;
}

.wm-pdf-drop {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--wm-bg);
    border: 2px dashed var(--wm-border);
    border-radius: 12px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.wm-pdf-drop.is-dragover,
.wm-pdf-drop:hover {
    border-color: var(--wm-accent);
    background: #eff6ff;
}

.wm-pdf-drop-pulse {
    animation: wm-pulse 0.6s ease 2;
    border-color: var(--wm-accent);
}

.wm-pdf-drop-inner {
    text-align: center;
    padding: 1.5rem;
}

.wm-pdf-drop-inner label.wm-btn {
    cursor: pointer;
    margin-top: 0.25rem;
}

.wm-pdf-drop-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.5rem;
}

.wm-pdf-drop-inner p {
    margin: 0 0 0.75rem;
    color: #374151;
}

.wm-pdf-drop-hint,
.wm-image-drop-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--wm-muted);
}

.wm-image-drop {
    position: relative;
    border: 2px dashed var(--wm-border);
    border-radius: 10px;
    background: var(--wm-bg);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    margin-bottom: 0.5rem;
}

.wm-image-drop.is-dragover,
.wm-image-drop:hover {
    border-color: var(--wm-accent);
    background: #eff6ff;
}

.wm-image-drop.has-file {
    border-style: solid;
    background: #fff;
}

.wm-image-drop-pulse {
    animation: wm-pulse 0.6s ease 2;
    border-color: var(--wm-accent);
}

@keyframes wm-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
    50% { box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.35); }
}

.wm-image-drop-inner {
    text-align: center;
    padding: 1.25rem 1rem;
    pointer-events: none;
}

.wm-image-drop-icon {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 0.35rem;
}

.wm-image-drop-inner p {
    margin: 0 0 0.5rem;
    font-size: 0.9rem;
    color: #374151;
}

.wm-image-drop-filled {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
}

.wm-image-drop-filled img {
    object-fit: contain;
    border-radius: 6px;
    background: #fff;
    border: 1px solid var(--wm-border);
}

.wm-image-drop-meta {
    flex: 1;
    min-width: 0;
    font-size: 0.85rem;
    color: #374151;
}

.wm-image-drop-meta span {
    display: block;
    word-break: break-all;
    margin-bottom: 0.25rem;
}

#pdf-wm-ui .wm-btn {
    display: inline-block;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
}

#pdf-wm-ui .wm-btn-primary {
    background: var(--wm-accent);
    color: #fff;
}

#pdf-wm-ui .wm-btn-primary:hover {
    background: var(--wm-accent-hover);
}

#pdf-wm-ui .wm-btn-success {
    background: var(--wm-success);
    color: #fff;
}

#pdf-wm-ui .wm-filename {
    margin-top: 0.75rem;
    font-weight: 600;
    color: #111827;
}

#pdf-wm-ui .wm-hint {
    font-size: 0.875rem;
    color: var(--wm-muted);
}

.wm-layout {
    display: grid;
    grid-template-columns: minmax(280px, 360px) 1fr;
    gap: 1.5rem;
    align-items: start;
}

@media (max-width: 860px) {
    .wm-layout {
        grid-template-columns: 1fr;
    }
}

.wm-panel {
    background: #fff;
    border: 1px solid var(--wm-border);
    border-radius: 12px;
    padding: 1.25rem;
}

.wm-file-info {
    font-size: 0.875rem;
    color: #111827;
    font-weight: 600;
    margin: 0 0 0.5rem;
    word-break: break-all;
}

.wm-type-tabs,
.wm-layer-tabs {
    display: flex;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.wm-type-tab,
.wm-layer-tab {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--wm-border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    font-size: 0.9rem;
}

.wm-type-tab.is-active,
.wm-layer-tab.is-active {
    border-color: var(--wm-accent);
    background: #eff6ff;
    color: var(--wm-accent);
    font-weight: 600;
}

.wm-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: #374151;
    margin: 0.75rem 0 0.35rem;
}

.wm-input {
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--wm-border);
    border-radius: 8px;
    font-size: 1rem;
    box-sizing: border-box;
}

.wm-input-sm {
    width: 4.5rem;
    display: inline-block;
}

.wm-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.5rem;
}

.wm-preset {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border: 1px solid var(--wm-border);
    border-radius: 6px;
    background: #f9fafb;
    cursor: pointer;
}

.wm-preset:hover {
    border-color: var(--wm-accent);
}

#pdf-wm-ui input[type="range"] {
    width: 100%;
    margin: 0.25rem 0;
}

.wm-pos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    max-width: 140px;
}

.wm-pos-grid button {
    aspect-ratio: 1;
    border: 1px solid var(--wm-border);
    border-radius: 6px;
    background: #f9fafb;
    cursor: pointer;
    padding: 0;
}

.wm-pos-grid button.is-active {
    background: var(--wm-accent);
    border-color: var(--wm-accent);
}

.wm-tile-btn {
    display: block;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.45rem;
    font-size: 0.8rem;
    border: 1px dashed var(--wm-border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.wm-tile-btn.is-active {
    border-color: var(--wm-accent);
    background: #eff6ff;
    color: var(--wm-accent);
}

.wm-select {
    width: 100%;
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--wm-border);
}

.wm-range-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.35rem;
}

.wm-actions {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.wm-link-btn {
    background: none;
    border: none;
    color: var(--wm-accent);
    cursor: pointer;
    font-size: 0.875rem;
    text-decoration: underline;
    padding: 0;
}

.wm-preview-wrap {
    position: sticky;
    top: 1rem;
}

.wm-preview-label {
    font-size: 0.8rem;
    color: var(--wm-muted);
    margin: 0 0 0.5rem;
}

#wm-preview-canvas {
    display: block;
    width: 100%;
    height: auto;
}

.wm-preview-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.wm-preview-overlay .wm-ov-text,
.wm-preview-overlay .wm-ov-img {
    position: absolute;
    white-space: nowrap;
    font-weight: 700;
    user-select: none;
    transform-origin: center center;
}

.wm-preview-overlay.is-tile .wm-ov-tile-wrap {
    position: absolute;
    inset: -20%;
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    justify-content: flex-start;
    gap: 2rem 3rem;
    transform: rotate(-35deg);
}

.wm-preview-overlay.is-tile .wm-ov-text {
    position: static;
    opacity: inherit;
}

.wm-progress-track {
    height: 8px;
    background: var(--wm-border);
    border-radius: 4px;
    overflow: hidden;
    max-width: 400px;
}

#wm-progress-bar {
    height: 100%;
    width: 0;
    background: var(--wm-accent);
    transition: width 0.3s;
}

.wm-result {
    text-align: center;
}

.wm-icon-ok {
    font-size: 2.5rem;
}

.wm-status {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: #fef2f2;
    color: #b91c1c;
    font-size: 0.9rem;
}

.wm-status:not(.wm-status-error) {
    background: #eff6ff;
    color: #1e40af;
}