/* ============================================
   Sign PDF - E-Signature Styles
   ============================================ */

.sign-workspace {
    margin-top: var(--space-xl);
}

.sign-step {
    margin-bottom: var(--space-xl);
}

/* Signature Tabs */
.signature-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    border-bottom: 2px solid var(--border-light);
}

.signature-tab {
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.signature-tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.signature-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Signature Panels */
.signature-content {
    position: relative;
}

.signature-panel {
    display: none;
}

.signature-panel.active {
    display: block;
}

/* Draw Canvas */
.signature-canvas-wrapper {
    position: relative;
    background: white;
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

#signature-canvas {
    display: block;
    cursor: crosshair;
    border-radius: var(--radius-lg);
}

.signature-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    pointer-events: none;
    user-select: none;
}

/* Type Preview */
.signature-preview-type {
    background: white;
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-lg);
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

#typed-signature-preview {
    text-align: center;
    color: #000;
}

/* Upload Zone */
.upload-signature-zone {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.upload-signature-zone:hover {
    border-color: var(--primary);
    background: var(--bg-tertiary);
}

.upload-signature-zone svg {
    margin: 0 auto var(--space-md);
    color: var(--text-secondary);
}

#uploaded-signature-preview {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
}

/* PDF Canvas Container */
#pdf-canvas-container {
    position: relative;
    display: inline-block;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#pdf-preview-canvas {
    display: block;
}

#signature-placements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.signature-placement-preview {
    pointer-events: auto;
}

/* Placed Signatures List */
#placed-signatures-list {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

/* Responsive */
@media (max-width: 768px) {
    .signature-tabs {
        flex-direction: column;
        border-bottom: none;
    }

    .signature-tab {
        border-bottom: 1px solid var(--border-light);
        border-left: 3px solid transparent;
    }

    .signature-tab.active {
        border-left-color: var(--primary);
        border-bottom-color: var(--border-light);
    }

    #signature-canvas {
        width: 100%;
        height: auto;
    }

    #pdf-canvas-container {
        width: 100%;
    }

    #pdf-preview-canvas {
        width: 100%;
        height: auto;
    }
}